Grey Water Treatment Systems
Grey water is the domestic wastewater, which consists of showers, bathtubs and sinks, excluding blackwater (sewage). The main difference between greywater and blackwater is the density of organic loading. Sewage has a much larger organic loading compared to greywater, making it harder and more costly to treat.
Treated greywater can be used in the irrigation process. Grey water reuse has major benefits to environmental sustainability. First, it reduces the need for fresh water. Minimizing freshwater use would reduce household water bills and demands on public water supply. Second, grey water reuse would reduce the amount of wastewater entering sewers or on-site treatment systems. Again, this benefits both households and the larger public.