Compost

							U.S. DEPARTMENT OF AGRICULTURE                                                                      ver 1.0
NATURAL RESOURCES CONSERVATION SERVICE

              WORKSHEET TO DETERMINE SIZE OF DEAD BIRD COMPOSTOR

NAME OF FACILITY                                PREPARED BY:             rms           DATE:        10/8/2012

OWNER:                                          APPROVED BY:                           DATE:
COUNTY:                                         PROGRAM:

B = NUMBER OF BIRDS ON FARM: =                                                                 90000 BIRDS
POULTRY TYPE:      Broilers
M = ANTICIPATED MORTALITY FOR FLOCK %, USE : =                                                   5.0 %

T = LIFE OF FLOCK ( DAYS) =                                                                      60 DAYS

Wb = WEIGHT OF BIRDS NEAR MATURITY=                                                               5 LBS

Wt = WEIGHT OF DEAD BIRDS LOST DURING FLOCK LIFE:
Wt = B x { (M/T) x Wb} =
Wt =              90000 Birds x { ( 5%    /       60 Days )                        x              5 lbs }
Wt =               375.0 lbs/day

ALLOW 2.5 cf COMPOSTOR VOLUME PER LB OF WEIGHT LOSS PER DAY AT MATURITY:

V1 = V2 = 2.5 x Wt = VOLUME IN EACH STAGE

STAGE 1 VOLUME = V1 =       2.5 cf /lb      x       375.0 lb =                 937.5 cf
                                                                     0
NUMBER OF COMPOSTOR BINS:

H = HEIGHT OF BIN ( 4- 5 FT), USE =                         5 FT
y1 = LENGTH OF BIN ( 5 FT), USE =                           5 FT
y2 = WIDTH (FRONT) OF BIN ( 8-10 FT), USE =                 8 FT

Vb = INDIVIDUAL BIN VOLUME = H x y1 x y2
Vb =                5 FT   x           5 FT             x            8 FT         =             200 cf

NUMBER OF BINS = V1 / Vb =               937.5 cf   /              200 cf             =          4.7 BINS

ROUND TO THE NEAREST WHOLE NUMBER:                                                               5.0 BINS

STAGE 2: PROVIDE AN EQUAL NUMBER OF BINS AS FOR STAGE 1 OR SIZE TO
         ACCOMMODATE VOLUME IN ONE LARGE, 8-10 FT WIDE.

STAGE 2: USE           5.0 BINS OR         1000 cf
         HEIGHT (FT) =              5 FT
         WIDTH (FT)=               10 FT
         LENGTH (FT)=              20 FT
TOTAL VOLUME REQUIRED FOR PRIMARY AND SECONDARY =                                          2000     cf
TOTAL SQ FT OF COMPOST AREA(NOT COUNTING STORAGE AREA) =                                    400     SF
COST OF COMPOSTOR @          $9.25    per SF =                                            $3,700.00

compost.xls