What is a grey water treatment system?
A treatment system will remove the bacterial load and chemical pollutants from grey water so that it can be stored. However, satisfactory treatment tends to be neither simple nor cheap. Treatment processes can include filtering, settling of solids, anaerobic or aerobic digestion, chemical removal of pollutants, and disinfection. What are the environmental risks associated with reusing grey water? Soil or plants can process many of the contaminants in grey water if the system is not overloaded, including organic material, nutrients, salt and sediment. Nutrients can even be beneficial in moderate concentrations. Some grey water contaminants are not capable of being treated or degraded in the soil. Principal among these is salt, which can comprise up to 30 % of some laundry detergents and can cause soil degradation. How much grey water do households generate? The amount of grey water generated by a household will vary greatly depending on the number of occupants, their age, and their wate