In India, as in many developing countries, wastewater is often used to
irrigate crops. This undoubtedly helps to recycle useful nutrients through
the food chain, but, as there can be toxic chemicals...
On 27 Feb 2012 The paper reports the results of an empirical study on the profitability
of rice cultivation in the East Calcutta Wetlands region where untreated
sewage water from the city of Calcutta, India, is us...
On 13 Dec 2011 |