Information Technology Wastewater Treatment 2

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Information Technology Wastewater Treatment 2 Powered By Docstoc
					WASTEWATER TRE AT ME NT                                                                   Marcela Velázquez-Carrillo
                                                                                      Consultant to Mountain Systems Inc.
INF OR MAT IO N TE C HNOL OG Y                                            on the application of Proficy for Water Treatment


SUEZ, parent company of United Water                                   disinfection with sodium hypochlorite.
– ONDEO, is one of the largest water                                   The sludge is treated differently in each
and wastewater treatment firms in the                                  plant. Jones Island’s sludge is dried to
world. On January 5th , 1998, United                                   produce MILORGANITE biosolids
Water – Milwaukee signed a 10 year                                     fertilizer. South Shore’s sludge is
Public-Private partnership with the                                    anaerobically digested to produce a soil
Milwaukee Metropolitan Sewerage                                        conditioner, which is used on farms in
District (MMSD). As part of the                                        Southeastern Wisconsin.
contract, United Water – ONDEO
operates and maintains MMSD’s two                                      The sewer interceptor system covers 28
wastewater treatment plants (Jones                                     communities covering over 420 square
Island and South Shore), maintains the                                 miles both inside and outside Milwaukee
sewer interceptor system and the deep                                  County. The “Deep Tunnel” network
tunnel storage network.                                                consists of a 17- mile tunnel located
                                                                       about 300 feet below ground and ranging
Each wastewater treatment plant has a                                  in diameter from 17 to 32 feet, with a
design capacity of 350 and 300 MGD,                                    storage capacity of 410 Mgal. It was
with an average capacity of 100 – 150                                  designed to store under extreme wet
MGD. Jones Island and South Shore                                      weather conditions the excess water flow
wastewater treatment plants work with a                                when it is higher than the plants’
preliminary treatment consisting of bar                                capacity.
screens and grit removal chambers,
primary clarifiers, activated sludge
treatment and a tertiary treatment of

               G
                                                                                    L          M
                     B             C                       D              E                F



           A
                         H
                                        I                      J
                                                                               K

       A   Bar Screens             G   Solids to Landfill
       B   Grit Removal Chambers   H   Grit to Landfill
       C   Primary Clarifiers      I   Primary Sludge to Dryer House
       D   Aeration Tanks          J   Return Activated Sludge
       E   Secondary Clarifiers    K   Waste Activated Sludge
       F   Disinfection            L   Sodium Hypochlorite
                                   M   Sodium Bisulfite
                                  straightforward and            the key performance
Y2K Bug                           reliable.                      indicators and key data,
A thorough analysis of                                           that with its Excel Add-
the process information      After analyzing several             in package is used to
systems at South Shore       options, United Water               build the production and
and Jones Island plants      together with MMSD                  environmental
showed that the              chose the following                 compliance reports.
information systems          systems. For the real-              Another important
used were not Y2K            time graphic interface              component of Proficy
compliant, therefore the     the workstations use                are the Autolog displays
Information & Control        Intellution and iFIX                to manually enter new
personnel from United        software. The historian             data into the databases,
Water Milwaukee and          chosen was “PI” process             and display process
MMSD searched for a          information system from             summary data, which
solution that meets the      OSI Software, San                   gives more flexibility to
following requirements:      Leandro, California.                the system. “PI” and
§ A real-time graphic        The Proficy software,               Proficy store the data in
    interface similar to     from Mountain Systems,              a SQL database. This
    the one already in       was chosen as a                     opens a wide range of
    use, familiar to the     reporting complement to             opportunities to
    operations’              the PI system. This way             manipulate the data by
    personnel and able       “PI” is used to keep a              using SQL compatible
    to display the           history of all the plant            script.
    process information      data and Proficy stores
    all across the plant
    on the operations’                            Key
    workstations;                                 Process
                                                  Process
§ A database historian       Autolog              Parameters        New Data Point ~ 1-5 min
                                                                                          min
                             • Hourly                                           Data Stored
                                                                    ~ 1 Year of Data Stored
    that could handle all    • Daily
    the process
    parameters and that
    could store at least 1
                                          PROFICY

                                                  SQL
                                                               PI
                                                                                     :
    year of data; and        Reports
                                                Database                      OPC
                                                                              OPC
§ A reporting system         Excel Add-
    that could be both       In
                                                                                     Bailey
                                  3+ Years                                OPC
                                                                          OPC         Loop
                                  Data Stored



                                                        Operators’
                                                        Workstations
                                                                               :
                            its monitoring              the required reports
Proficy System              equipment on a              display daily data, which
Definition                  continuous basis. This      is analyzed regularly. In
                            data, generated on time     the case of some of the
Wastewater treatment
has a difference with       ranges from 1 to 5          regulatory comp liance
                            minutes, is stored in the   reporting requirements,
other industries that use
                            PI database. This means     the data was defined
the PI and Proficy
                            that PI stores from 1440    under different time
software, it has only one
                            to 288 data points per      ranges.
product: Treated Water.
So instead of defining      parameter. This amount
                            of data is not easily       For an easier handling of
different products with
                            analyzed unless it is       data the Proficy system
batch production and
                            summarized and              was divided by unitary
formulations, as it is
                            combined. Proficy           process, i.e. Raw
done at other facilities,
the system was defined      database is designed to     Sewage, Preliminary
                            collect the data from the   Treatment, Secondary
with one single product:
                            PI database. Proficy        Treatment, Sludge
Water Treatment, and all
                            database is set up to       Thickening, Sludge
parameters were defined
                            collect the required        Drying, and Laboratory
as time based variables.
This allows an analysis     information from PI to      Data. The variables
                            store only the              were organized inside
of the change of
                            summarized data, like       each process by
parameters with time
                            daily values, maximums,     sampling type: Hourly
and the introduction of
                            minimums, etcetera.         data, Daily data,
limits and specifications
on each one. United         Most Proficy variables      Maximum, Minimum,
                            were defined as daily       Calculations, etcetera.
Water – Milwaukee
                            data, since at this water
wastewater treatment
plants collect data from    treatment plant most of


                            for governmental and        reports to the regulatory
Reporting                   private entities. Jones     agencies, and prepares
Systems                     Island and South Shore      daily reports for
Wastewater Treatment        have to present monthly     operation review.
plants have stringent       performance reports to
reporting requirements,     MMSD, the client,
both for internal use and   annual and semiannual
  The first reporting            report including all the        department the
  system to be developed         daily values per                evaluation of the plant
  was for South Shore,           parameter; and an               efficiency and
  since its former               annualized report which         performance. This
  reporting system was           includes all the monthly        report includes:
  not Y2K compliant. A           averages, maximums,             § Plant influent flow
  44-page report was             minimums and totals per         § Daily laboratory
  prepared. This report          parameter. These                    data: BOD, TSS,
  was divided in three           archived reports allow              Phosphorous,
  areas: Purification,           personnel to analyze and            Chlorine, Fecal
  Solids and Chemicals.          view the data without a             Coliform and
  Parallel to these reports      connection to the                   Ammonia, together
  a Daily Exception              process network or to               with the weekly
  Report was developed.          the PI – Proficy                    rolling average value
  Taking advantage of            software, since they                and the monthly
  Microsoft Windows and          would only require                  average.
  Excel Visual Basic             Microsoft Excel.                § Primary treatment
  capabilities the 44-page                                           data: Sludge
  report is archived at the      The Daily Exception                 concentration and %
  end of each month in           Report is used to                   total solids
  three different formats: a     analyze the daily plant         § Secondary treatment
  monthly report with all        performance, therefore it           data: Aeration
  the daily values, plus the     includes key                        dissolved oxygen,
  monthly averages,              performance parameters              MLSS, MCRT, SVI,
  maximums, minimums             and laboratory data that            Blanket level and
  and totals; a year-to-date     allows the operations               RAS.

The Purification portion of the report includes  The Solids portion of the report includes:
parameters like:                                 § Sludge flow, mass and concentration
§ Process hydraulic characteristics;                 through the process
§ Temperature                                    § Pumps flow and pressure
§ Laboratory data: BOD, TSS, Ammonia,            § Laboratory data for digestion process: %
    etc.                                             Volatile solids, % Volatile acids,
§ Diversions inside the process                      Alkalinity, pH.
§ Number of units in service                     § Digestion process parameters: Volume,
§ Chemical application efficiency                    loading, residence time, gas production
§ % Removal efficiency                           § Sludge dewatering, capture, storage and
§ Blanket levels                                     disposal.
§ Performance indicators: SVI, MCRT,
    MLSS.                 The Chemical portion of the report includes:
                          § Chemical inventory
                          § Shipments received
                          § Daily usage, metered and inventory based
                          § Dosages
                          § Residuals and concentration
                            important for Jones                          sludge for the drying
South Shore takes data      Island since it produces                     process, but also the
from the monthly            the commercial product:                      efficiency of the
reports to build their      MILORGANITE. Both                            clarifiers and the
monthly performance         for the client and for                       secondary sludge
report to the MMSD and      United Water keeping                         thickening. Currently
their annual regulatory     this process controlled is                   they are working on
reports. This way all the   a focal activity. That is                    adding the purification
data is centralized. It     why they selected this                       and chemical reporting
makes it easier to build    process when starting                        sections to the sludge
the required reports        with the Proficy                             handling report.
having a base for the       reporting system. They
data that everybody         included the                   Plant Area/Indicators     Limits  Target   Actual
                                                  PLANT FLOW (MGD)                                     125
agrees on.                  properties of the
                                                             PLANT EFFLUENT
                            sludge mixture:       TSS [mg/l]
                                                  DAILY                                45       10      9
Jones Island is starting    Primary,              TO DATE WEEKLY AVERAGE               45       10     11
to build their own          Secondary,            TO DATE MONTHLY AVERAGE
                                                  BOD (mg/l)
                                                                                       30       10     10


monthly report based on     Digested coming DAILY WEEKLY AVERAGE
                                                  TO DATE                              45
                                                                                                10
                                                                                                10
                                                                                                        8
                                                                                                        9
the experiences of South    from South Shore FECAL COLIFORM (100 ML)
                                                  TO DATE MONTHLY AVERAGE              30       10     11


Shore. Their current        and Thickened         MOST RECENT VALUE
                                                  TO DATE MONTHLY G/M                  400
                                                                                                80
                                                                                                80
                                                                                                       50
                                                                                                       70
reporting system is Y2K     Secondary. The        PHOSPHORUS (mg/l)
                                                  MONTHLY AVG                           1      0.7     0.8
compliant therefore         composition of        pH
                                                  DAILY                              6.0-9.0     7     6.8
there was no hurry in       the sludge is         WEEKLY AVERAGE
                                                  NH3 (mg/l)
                                                                                     6.0-9.0     7     6.9

making the change,          crucial to the        WEEKLY AVERAGE                    6.7-16.7     1     0.8
                                                          PRIMARY TREATMENT
though they have seen       final properties of THICKENED SLUDGE CONC %                        4%      3.8
                                                  TSS % REMOVAL                               50%      50
the advantages of having    MILORGANITE.                SECONDARY TREATMENT
                                                  AERATION D.O.                                 3      2.7
a centralized report like   With this partial     MLSS (mg/l)                                 1700    1900
                                                  MCRT (days)                                  5.5      6
the one at South Shore      report Jones
                                                  SVI 7 DAY AVG                                100     110
and are shifting to this    Island controls       BLANKET LEVEL (feet)                        <1.5     1.5
                                                  RAS SS (mg/l)                               9000    9500
kind of system. They        not only the                      DISINFECTION
                                                  CHLORINE DOSE (mg/l)                         1.2     1.5
started with their sludge   sludge going          Cl2 RES. BEFORE DECHLOR S (mg/L)             0.5     0.7
                                                  Cl2 RES. BEFORE DECHLOR N (mg/L)             0.5     0.7
management system.          towards the belt      CL2 RES. AFTER DECHLOR S (mg/L)      0.1    0.05      0
                                                  CL2 RES. AFTER DECHLOR N (mg/L)      0.1    0.05      0
The sludge drying           filter presses, that
process is very             prepare the blended


                            time till the year 2000                  facility in Jones Island.
Air Emission                they operated with a                     This permit requires an
Regulatory                  Wisconsin Department                     annual Compliance
Reports at Jones            of Natural Resources                     Report and a biannual
Island                      construction permit. In                  Monitoring Report. The
                            July 2000 an air                         permit controls several
In 1996 Jones Island        pollution control                        emission parameters,
built a new Dewatering
                            operation permit was                     including particulate
and Drying house for        granted for the                          matter, sulfur dioxide,
MILORGANITE
                            Dewatering and Drying                    visible emissions,
production. From this
nitrogen oxides, carbon                                                         requirement. PI
monoxide, and volatile       All parameters, except                             equations were used to
organic compounds,           the fuel and natural gas                           calculate the total hours
among others. The            consumption and the                                of operation of the
monitoring of these          blended sludge                                     equipment each month.
parameters required a        processed, required a                              All weekly and monthly
continuous monitoring        report of the maximum                              averages were calculated
of the air control           10 minute average over                             using Excel equations.
equipme nt and the           8 hour periods.                                    With the inclusion of
dryers. Several indirect                                                        Visual Basic macros a
indicators were selected     The monitoring report                              system was developed
to point out the             was developed in Excel                             so that the report be
compliance with the          with the Proficy Add-In.                           generated and printed
permit requirements.         Most parameters used                               each month.
The following indicators     Proficy and PI databases
were selected:               for the number
                                                    TABLE 4. DRYER PRODUCT TEMPERATURE
§ Fuel and natural gas       generation. The         TABLE 4. DRYER PRODUCT TEMPERATURE
                                                    Each value is calculated as the 8 hour maximum of the 10 min average.
                                                     Each value is calculated as the 8 hour maximum of the 10 min average.
                                                         DATE           SHIFT       DRYER 1      DRYER 2        DRYER 3    DRYER 4
    consumption, daily       numbers were                  DATE           SHIFT       DRYER 1     DRYER 2
                                                                                        TK252401.PV TK252402.PV
                                                                                                                  DRYER 3   DRYER 4
                                                                                                                 TK252403.PV TK252404.PV
                                                                                         TK252401.PV TK252402.PV   TK252403.PV TK252404.PV
    and weekly,              displayed on a                                                 249
                                                                                             F249
                                                                                                        250
                                                                                                         F250
                                                                                                                     251
                                                                                                                      F251
                                                                                                                                 252
                                                                                                                                  F252

§ Start- up and              monthly layout in         1/1/01 00:00
                                                         1/1/01 00:00
                                                                           1
                                                                             1
                                                                                     150.00
                                                                                       150.00
                                                                                               F
                                                                                                  150.00
                                                                                                    150.00
                                                                                                           F
                                                                                                                 187.97
                                                                                                                        F
                                                                                                                   187.97
                                                                                                                            150.00
                                                                                                                             150.00
                                                                                                                                    F

                                                       1/1/01 08:00        2         150.00       150.00         185.89     150.00
    shutdown times and       Excel. The use of           1/1/01 08:00
                                                       1/1/01 16:00
                                                         1/1/01 16:00
                                                                           3
                                                                             2
                                                                             3
                                                                                       150.00
                                                                                     150.00
                                                                                       150.00
                                                                                                    150.00
                                                                                                  150.00
                                                                                                    150.00
                                                                                                                   185.89
                                                                                                                 208.42
                                                                                                                   208.42
                                                                                                                             150.00
                                                                                                                            150.00
                                                                                                                             150.00
                                                       1/2/01 00:00        1         150.00       150.00         202.29     150.00
    hours of operation of    embedded Excel              1/2/01 00:00
                                                       1/2/01 08:00        2
                                                                             1         150.00
                                                                                     150.00
                                                                                                    150.00
                                                                                                  150.00
                                                                                                                   202.29
                                                                                                                 202.49
                                                                                                                             150.00
                                                                                                                            150.00
                                                         1/2/01 08:00        2         150.00       150.00         202.49    150.00
    dryers and               equations                 1/2/01 16:00
                                                         1/2/01 16:00
                                                       1/3/01 00:00
                                                                           3
                                                                           1
                                                                             3
                                                                                     150.00
                                                                                       150.00
                                                                                     150.00
                                                                                                  150.00
                                                                                                    150.00
                                                                                                  150.00
                                                                                                                 186.99
                                                                                                                   186.99
                                                                                                                 199.57
                                                                                                                            150.00
                                                                                                                             150.00
                                                                                                                            150.00
                                                         1/3/01 00:00        1         150.00       150.00         199.57    150.00
    baghouses.               facilitated the           1/3/01 08:00
                                                         1/3/01 08:00
                                                       1/3/01 16:00
                                                                           2
                                                                           3
                                                                             2
                                                                                     150.00
                                                                                       150.00
                                                                                     150.00
                                                                                                  150.00
                                                                                                    150.00
                                                                                                  150.00
                                                                                                                 205.53
                                                                                                                   205.53
                                                                                                                 208.67
                                                                                                                            150.00
                                                                                                                             150.00
                                                                                                                            198.85
§ Operating dryer            display of the right        1/3/01 16:00
                                                       1/4/01 00:00
                                                         1/4/01 00:00
                                                                           1
                                                                             3
                                                                             1
                                                                                       150.00
                                                                                     150.00
                                                                                       150.00
                                                                                                    150.00
                                                                                                  150.00
                                                                                                    150.00
                                                                                                                   208.67
                                                                                                                 197.47
                                                                                                                   197.47
                                                                                                                             198.85
                                                                                                                            199.64
                                                                                                                             199.64
                                                       1/4/01 08:00        2         150.00       150.00         195.25     191.00
    temperature. This        numbers, and times          1/4/01 08:00
                                                       1/4/01 16:00
                                                         1/4/01 16:00
                                                                           3
                                                                             2
                                                                             3
                                                                                       150.00
                                                                                     150.00
                                                                                       150.00
                                                                                                    150.00
                                                                                                  150.00
                                                                                                    150.00
                                                                                                                   195.25
                                                                                                                 187.37
                                                                                                                   187.37
                                                                                                                             191.00
                                                                                                                            188.86
                                                                                                                             188.86
                                                       1/5/01 00:00        1         150.00       150.00         194.69     196.36
    should not exceed        of start-up and                 TABLE 2. DRYERS
                                                         1/5/01 00:00        1         150.00       150.00         194.69    196.36
                                                              TABLE22. DRYERS
                                                       1/5/01 08:00
                                                         1/5/01 08:00        2
                                                                                     195.27
                                                                                       195.27
                                                                                                  150.00
                                                                                                    150.00
                                                                                                                 191.39
                                                                                                                   191.39
                                                                                                                            194.69
                                                                                                                             194.69
    210°F for periods        shutdown of               1/5/01 16:00
                                                         1/5/01 16:00
                                                       1/6/01 00:00DATE 1
                                                                           3
                                                                             3
                                                                                     204.26
                                                                                       204.26 DRYER 2
                                                                                  DRYER 1
                                                                                     190.26
                                                                                                  150.00
                                                                                                  150.00
                                                                                                                 204.40
                                                                                                    150.00 DRYER 3 204.40
                                                                                                                 189.19
                                                                                                                            202.13
                                                                                                                             202.13
                                                                                                                           DRYER 4
                                                                                                                            193.41
                                                         1/6/01 00:00               DRYER         DRYER          DRYER      DRYER
                                                                     DATE 1 QL251401_Int 1 QL251402_Int 2 QL251403_Int 3 QL251404_Int 4
                                                                                       190.26       150.00         189.19    193.41
    longer than 10           equipment. A              1/6/01 08:00
                                                         1/6/01 08:00
                                                                           2
                                                                             2
                                                                                     191.39
                                                                                       191.39
                                                                                      425
                                                                                                  150.00
                                                                                                    150.00
                                                                                                    429
                                                                                                                 196.57
                                                                                                                   196.57
                                                                                                                   430
                                                                                                                            193.59
                                                                                  QL251401_Int QL251402_Int QL251403_Int QL251404_Int
                                                                                                                             193.59
                                                                                                                             431
                                                       1/6/01 16:00 OF MIN
                                                               TIME        3         199.08       150.00         201.29     200.03
    minutes.                 series of equations         1/6/01 16:00 OF MIN
                                                                 TIME
                                                       1/7/01 00:00 OF MAX
                                                              TIME
                                                         1/7/01 00:00 OF MAX
                                                                TIME
                                                                           1
                                                                             3
                                                                             1
                                                                                        425
                                                                                       199.08
                                                                                     201.90
                                                                                      410
                                                                                       201.90
                                                                                        410
                                                                                                      429
                                                                                                    150.00
                                                                                                  150.00
                                                                                                    411
                                                                                                    150.00
                                                                                                      411
                                                                                                                     430
                                                                                                                   201.29
                                                                                                                 197.99
                                                                                                                   412
                                                                                                                   197.99
                                                                                                                     412
                                                                                                                               431
                                                                                                                             200.03
                                                                                                                            199.38
                                                                                                                             413
                                                                                                                             199.38
                                                                                                                               413
                                                                           2         198.10       150.00         201.29     201.29
§ Baghouse
                                                       1/7/01 08:00
                                                                 12-31-00            OUT          OUT              IN        OUT
                             using PI and the            1/7/01 08:00
                                                       1/7/01 16:0012-31-00
                                                                   1-1-01 3
                                                         1/7/01 16:00
                                                                             2
                                                                             3
                                                                                       198.10
                                                                                       OUT
                                                                                     199.08
                                                                                     OUT
                                                                                       199.08
                                                                                                    150.00
                                                                                                     OUT
                                                                                                  150.00
                                                                                                  OUT
                                                                                                    150.00
                                                                                                                   201.29
                                                                                                                 207.01
                                                                                                                   ININ
                                                                                                                   207.01
                                                                                                                             201.29
                                                                                                                              OUT
                                                                                                                            194.33
                                                                                                                             OUT
                                                                                                                             194.33
                                                       1/8/01 00:00 1-1-01             OUT           OUT             IN       OUT
                                                                   1-2-01 1 1        197.99
                                                                                     OUT          150.00
                                                                                                  OUT            202.39
                                                                                                                   IN       204.83
                                                                                                                             OUT
    differential pressure,   Proficy add- in was         1/8/01 00:00
                                                       1/8/01 08:00 1-2-01
                                                                   1-3-01 2 2
                                                                                       197.99
                                                                                       OUT
                                                                                     203.95
                                                                                     OUT
                                                                                                    150.00
                                                                                                  150.00
                                                                                                  OUT
                                                                                                     OUT           202.39
                                                                                                                     IN
                                                                                                                 206.59
                                                                                                                   IN
                                                                                                                             204.83
                                                                                                                              OUT
                                                                                                                            202.41
                                                                                                                            21:58
                                                         1/8/01 08:001-3-01            203.95
                                                                                       OUT          150.00
                                                                                                     OUT           206.59
                                                                                                                     IN      202.41
                                                                                                                              21:58
    influent, and out        used for the                          1-4-01
                                                                     1-4-01
                                                                                     OUT
                                                                                       OUT
                                                                                                  OUT
                                                                                                     OUT
                                                                                                                   IN
                                                                                                                     IN
                                                                                                                              IN
                                                                                                                                IN
                                                                   1-5-01             9:56        OUT              IN         IN
    flow temperature,        identification of the                   1-5-01
                                                                   1-6-01
                                                                                        9:56
                                                                                       IN
                                                                                         IN
                                                                                                  OUT
                                                                                                     OUT
                                                                                                     OUT
                                                                                                                   IN
                                                                                                                     IN
                                                                                                                     IN
                                                                                                                              IN
                                                                                                                                IN
                                                                                                                                IN
                                                                     1-6-01
                                                                   1-7-01              IN         OUT              IN         IN
    and alarms.              times when the                          1-7-01
                                                                   1-8-01              IN
                                                                                         IN
                                                                                                  OUT
                                                                                                     OUT
                                                                                                                   IN
                                                                                                                     IN
                                                                                                                              IN
                                                                                                                                IN

§ Wet electrostatic                                                  1-8-01              IN          OUT             IN         IN
                             operation temperature                 1-9-01
                                                                     1-9-01
                                                                                       IN
                                                                                       IN
                                                                                         IN
                                                                                                  OUT
                                                                                                     OUT
                                                                                                  13:45
                                                                                                                   IN
                                                                                                                   IN
                                                                                                                     IN
                                                                                                                              IN
                                                                                                                              IN
                                                                                                                                IN
                                                                  1-10-01
                                                                                         IN         13:45            IN         IN
    precipitators (ESP)      was higher than 210°F                  1-10-01
                                                                  1-11-01
                                                                    1-11-01
                                                                                       IN
                                                                                         IN
                                                                                                    IN
                                                                                                       IN
                                                                                                                   IN
                                                                                                                     IN
                                                                                                                              IN
                                                                                                                                IN
                                                                  1-12-01
    primary current and      in average over a period               1-12-01

    secondary voltage.       of one hour, a permit


                             match PI and Proficy                               real time data directly on
Next Steps –                 have for the application                           their workstations and
United Water                 on Wastewater                                      have the ability to
United Water has             Treatment facilities.                              combine data from
observed the good            They are able to analyze                           different sources for
comparison and                 networks. This              data from their
efficiency analysis.           connection is going to      workstations.
With the Proficy               enable the review of all
reporting systems they         Proficy reporting           The next step is to apply
acquire a simpler and          systems from all the        PI and Proficy to the
more flexible system           business and process        sewer interceptor system
that can be modified by        workstations,               and the deep tunnel.
their own personnel to         independently if it’s on    Intellution and iFIX are
adapt to changes in the        Jones Island or South       going to be used for the
process. The advantage         Shore. Jones Island is      real time graphic
of using Excel as the          currently modifying         displays. New reports
base for the reporting         their reporting system to   are going to be
system is the already          include in the Proficy      developed for operations
acquired knowledge the         database the whole          and for regulatory
employees have of the          reporting requirements      requirements. With the
software, making it            to bring it to the same     connectivity project, in
easier for them to             level as a South Shore      which they are going to
understand the equations       reports.                    join the process and
and to manipulate the                                      business networks the
report itself. This makes      All process operators are   whole United Water –
it easier to teach the         going to be trained on      Milwaukee project is
different applications         the use of Proficy          going to be in a
Proficy can have on the        manual entry displays.      homogeneous data
plant.                         This will reduce the time   system that can be
                               the data clerk uses on      reviewed and analyzed
By the end of the year         data entry operations       from any computer in
2000, United Water is          and will allow the          the project.
going to connect their         operations personnel to
business and process           view daily calculated

Nomenclature:
BOD            Biochemical oxygen demand
Cl2            Chlorine
D.O.           Dissolved oxygen
MCRT           Mean cell residence time
MLSS           Mixed liquor suspended solids
MMSD           Milwaukee Metropolitan Sewerage District
NH3            Ammonia
RAS            Return activated sludge
SS             Suspended solids
SVI            Sludge volume index
TSS            Total suspended solids
WAS            Waste activated sludge