Purified Recycled Water

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					    Purified Recycled Water
    Water for a Healthy Country

                                                       CSIRO scientists are providing world-class science to
                                                       advance the knowledge and understanding of purified
                                                       recycled water to ensure safety and consumer acceptability.

CSIRO researchers are providing             by the Environment Protection
world-class science to ensure purified      and Heritage Council, the Natural
recycled water is safe. They are            Resources Management Ministerial
part of a world-wide network of             Council and the National Health
ecotoxicologists, environmental and         and Medical Research Council.
social scientists, microbiologists and
                                            Purified recycled water is subject
advanced water treatment experts
                                            to advanced water treatment and
who are constantly researching
                                            undergoes significant testing and checks.
all aspects of water recycling.
                                            The guidelines for production of purified
                                            recycled water are designed to ensure
Water safety                                that recycled water will be safe, and
Australia has developed world-leading       can be delivered at a higher standard
drinking water and recycled water           than tap water that we drink now.
guidelines to protect public health.
The use of purified recycled water for      Supported by
drinking purposes is covered under          world-class science
the “Augmentation of Drinking Water
Supplies” section of the Australian         Scientific knowledge and expertise
Water Recycling Guidelines, which           underpins the information and
includes information and directions         requirements contained within the           > Purified recycled water undergoes
on risk assessment and management           Australian Water Recycling Guidelines       more tests and checks than the water
processes to ensure water safety.           and international guidelines developed      we currently drink from our taps.
These guidelines have been endorsed         by the World Health Organisation.

                                                                                        CSIRO is conducting water research
                                                                                        throughout Australia that is of national
                                                                                        and international importance to
                                                                                        indentify opportunities and increase
                                                                                        knowledge to facilitate potable and non-
                                                                                        potable recycling of reclaimed water and
                                                                                        stormwater via aquifers and reservoirs.
                                                                                        Our experts provide independent
                                                                                        advice on the reuse of water in the
                                                                                        areas of technical feasibility, public
                                                                                        health, environmental sustainability
                                                                                        and risk assessment and monitoring.
                                                                                        CSIRO’s Water for a Healthy
                                                                                        Country Flagship program has
                                                                                        invested $25 million over five years
                                                                                        in the Queensland Urban Water
                                                                                        Security Research Alliance.
> The introduction of purified recycled water into the drinking water supply
is an important option to improve Australia’s long-term water security.
                                                                                        Long term water
                                                                                        Australia needs to ensure water
                                                                                        security in a drying and variable climate,
                                                                                        particularly in high population areas
                                                                                        where rainfall and runoff have declined
                                                                                        significantly. The combined effects of
                                                                                        climate change and population growth
                                                                                        have led to significant water deficits in
                                                                                        some areas, despite ongoing efforts to
> Clarifier at Luggage Point Water Reclamation Plant, Queensland.
                                                                                        reduce per capita water consumption.
                                                                                        Purified recycled water can provide
The largest project in the research        The barriers include source water
                                                                                        a reliable, climate-resilient and
alliance is the Purified Recycled          control, tertiary sewage treatment,
                                                                                        economically sound source of
Water project. Along with research         microfiltration, reverse osmosis,
                                                                                        supply, which can be an important
partners in the University of              advanced oxidation, the use of natural
                                                                                        component of a diversified and
Queensland and Griffith University,        processes in reservoirs and final
                                                                                        robust water supply portfolio.
we continue to advance the                 water treatment and disinfection.
knowledge and understanding of
                                           The seven-barrier treatment process
the seven-barrier treatment process
                                           is designed to be fail-safe. The water is
that has been installed to ensure
                                           subject to water quality monitoring and
the health and environmental
                                           testing at all stages of the seven-barrier
safety of purified recycled water.                                                      For further information:
                                           process to ensure quality and safety of
                                           the water and to facilitate immediate
                                                                                        Water for a Healthy Country
World’s best technology                    intervention in supply if the water fails    Dr Simon Toze
and expertise is used                      to comply with safety guidelines.            Principal Research Scientist
                                                                                        Recycling and Diversified Supply
In South East Queensland purified                                                       Phone: +61 7 3214 2698

                                                                                                                                     VRU 2008 • SM081049_WfHC_PRWFactsheet.indd
recycled water is produced through         Recycled water use                           Email:
a seven-barrier treatment process          around the world
and undergoes a strict testing regime.
                                           Reusing water is not a new concept for
The design and operation represent
                                           Australia and the world. Water recycling
the most comprehensive level of
                                           for supply via the discharge of treated
water treatment undertaken on any
                                           sewage to a river has been going on for
water recycling project in the world.
                                           a long time in Europe, North America
                                           and Australia. Many towns and cities
                                           that draw their supplies from rivers
                                           inadvertently use some recycled water
                                           that has been discharged upstream.
                                           The level of treatment technology
                                           that is being employed for purified
                                           recycled water in Australia and the
                                           consequent margins of safety are
                                           at least as great as for other water
                                           reuse schemes around the world.

                                           > Interior of a reverse osmosis
                                           treatment plant. Reverse osmosis is
                                           one of the stages in the seven-barrier
                                           treatment process to produce purified
                                           recycled water. Photo: IStockphoto

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Description: Purified Recycled Water