K.S. PANDE AND S.D. SHARMA
Abstract
The natural purification of streams is a very important phenomenon for the cleanliness of the river and associated environment. The most critical parameter on which the pollution of the water body is based is the dissolved oxygen of water which is an effect of prevailing B.O.D. The delicate balance is maintained between the dissolved oxygen in water and the sources and the sinks of dissolved oxygen. The present paper gives an account of natural purification capacity of river Ramganga based on studies of 24- parameters already carried out by the authors and it has been advocated that the self- purifying abilities of the streams should be properly evaluated and exploited to the fullest so that the pollution control cost could be minimised. An example of river Ramganga has been cited.