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Greywater refers to all types of wastewater that contain soap, detergents, oils, and other non-biodegradable compounds. It is commonly generated from sources such as showers, bathtubs, sinks, kitchens, dishwashers, laundry tubs, and washing machines. Greywater constitutes the largest portion of household wastewater by volume, typically making up 50-80% of the total wastewater. In cases where a composting toilet is used, all household wastewater is categorized as greywater.

There are two ways of treating grey wastewater

  • Aerobic treatment (Mechanised treatment) - Inorganica
  • Anaerobic treatment (Natural treatment) - Constructed Wetland

Greywater is wastewater from household activities that includes soap, detergents, oils, and other non-biodegradable substances. It originates from sources like showers, bathtubs, sinks, kitchens, dishwashers, laundry tubs, and washing machines.

Greywater typically accounts for 50-80% of the total household wastewater volume. If a composting toilet is used, then all household wastewater is considered greywater.

Common sources of greywater include showers, bathtubs, sinks, kitchen areas, dishwashers, laundry tubs, and washing machines.