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In a world where responsible water management is essential to address environmental and resource challenges, graywater reuse emerges as an innovative and sustainable solution.
What is meant by gray water?
Graywater originates from sinks, showers and bidets and is characterized by a significantly lower organic load compared to blackwater, which comes from toilets and contains fecal material. Due to their lower level of contamination, they are much easier to treat for subsequent reuse, which implies a more efficient use of resources compared to sewage treatment.
It is estimated that approximately 75% of the wastewater generated in homes and hotels corresponds to graywater, with an average of between 50 and 100 liters per person per day, which highlights its potential as a valuable resource.
Grey water reuse plant: AZUD WATERTECH GW
To address this challenge, AZUD presents an effective solution: the greywater treatment plant.AZUD WATERTECH GW.
This plant employs several technologies that combine to achieve high quality filtration and contribute to solving this problem.
Disc filtration.
Filtration equipment with disc technology and air assisted self-cleaning system AZUD HELIX AUTOMATIC AA. A high efficiency and very low water and energy consumption mechanism for the removal of suspended solids of inorganic and organic nature and also provides protection to the following equipment and membranes.
Ultrafiltration membrane filtration.
Ultrafiltration membrane technology guarantees the quality of treated water by eliminating unpleasant odors, avoiding sludge generation and reducing noise nuisance.
Disinfection.
Oxidant dosage to eliminate organic matter. In addition, the option of using hypochlorite dosing or UV lamps is offered to ensure water disinfection.
These plants are compact and can be disassembled by modules, which facilitates their installation in hard-to-reach places and their subsequent operation.
Success stories in urban graywater reuse
These grey water reuse and treatment systems AZUD WATERTECH GW have been implemented all over the world. Notable examples include hotels where it is reused to irrigate their gardens and office buildings that reduce their environmental footprint by recycling graywater for flushing toilets.
Graywater reuse in office building: Synergy
A recent project that deserves special attention is in Montevideo, carried out for the Uruguayan company SINERGIA, which rents shared workspaces and flexible offices. In one of its most outstanding buildings, with coworking capacity for more than 200 people and equipped with restaurants and entertainment areas, a gray and rainwater reuse plant has been implemented. This measure has made it possible to reuse water in toilet cisterns, achieving a significant reduction of up to 30,000 liters per day of potable water.
This has contributed to position SINERGIA as one of the most sustainable buildings in Uruguay, having obtained the LEED Platinum Core & Shell certification, which guarantees that the building was built and operates with the least possible impact on the environment.
LEED Certification
LEED (Excellence in Energy and Environmental Design) Platinum Core & Shell certification is a very high level of certification awarded by the USGBC (U.S. Green Building Council) for sustainable construction projects under the LEED (Leadership in Energy and Environmental Design) certification system. LEED certification is used to evaluate and recognize buildings and projects that have implemented sustainable and environmentally friendly practices.
The case of the SINERGIA building is a powerful illustration of how graywater reuse can transform the sustainability of buildings and businesses. Not only does it reduce potable water consumption, but it also contributes significantly to resource conservation and a reduced environmental footprint.
If you want to know more about our urban greywater reuse solutions please contact AZUD. Our team of experts will study your case to offer you the solution that best suits your needs.
