Gallery 0 Résultats Réinitialiser recherche Close The East Kolkata Wetlands Ramsar Site (India) has provided a vital service in receiving and treating the waste water from the city of Kolkata. Each day, the wetland receives some 1,000 million litres of sewage. This natural waste water treatment system developed by the local community with their traditional wisdom saves the city the cost of having to build and maintain a conventional treatment plant . Ramsar Convention The East Calcutta Ramsar Site provides about 150 tons of fresh vegetables daily, as well as some 10,500 tons of fish per year, the latter providing livelihoods for about 50,000 people directly Dhrubajyoti Ghosh