Figure 3.3 A sustainable wastewater system

Textual description

This figure outlines a sustainable wastewater system. Rainwater and water from a catchment area are stored in a lake for use by residential and commercial users. Roof water is also used by residential users. Grey water from baths, showers and other domestic use is recycled and dispersed into the ecosystem. Stormwater from commercial users is piped to silt ponds for evaporation and for re-use. Wastewater from homes and commercial users is treated in a small-scale plant; solids are composted and treated water disposed of into silt ponds. When the water makes it way from the silt ponds to the sea, it is clean.