Sumita Gupta

In: UA Magazine 8 - Wastewater Reuse in Urban Agriculture

Kolkata (formerly Calcutta) has one of the largest recycling zones in India with age-old practices of fish culture and vegetable production. A large number of sewage-wastewater-fed fisheries have been developed on the wetlands in lagoon types of ponds in which fish are cultivated, and where sunlight, water hyacinths and phytoplankton are used to clean the water. Treatment methods are discussed here.