RECYCLING OF URBAN WASTEWATER FOR FOOD PRODUCTION
05.05 2007 04:10
Best Practice Example from Kolkata, India
The cities consume water but disposal of waste water has become a problem. There is growing awareness of recycling of wastewater for aquaculture for fish production and irrigation and utilisation of sludge for vegetable production. Throughout Asia in many cities sewage fed waste water is used with benefits of employment, improved environment, and food production. It is cost effective process. Kolkata, a megacity in India has the largest recycling district in the world. Kolkata metropolis is built on marshy land and there are many wetlands. There is indigenous technology of waste water treatment.