Most of us send waste water into the city sewers for treatment. It is possible to treat and reuse waste water in most cases at the building level itself, using simple natural and low-energy systems like the root zone treatment system.
In this system, one needs to build a reed bed through which water is passed and treated. While large sites can use the land available and make this system a part of the landscape, smaller sites such as the one on which the Vishwanaths’ residence in Vidyaranyapura has been built, use a part of their roof for treating the water from bath and the washing machine.
Water from toilets or ‘black water’ too can be treated in this kind of a system by the addition of a baffle reactor. Adoption of such systems not only reduces waste generation but also contributes towards providing water security to our cities. All these possibilities show that recycling reduces the burden on natural resources. Burden is reduced on treatment plants.