当前世界环境

Due to sewage, agricultural and industrial wastes,abnoxious emissions and anthropogenic activities, the freshwater bodies around the world are becoming polluted The water body selected for this study is Narayan Talab of Satna, the District head quarter in Madhya Pradesh, India. The Narayan Talab is one of the important sources of potable water supply for the Satna city. The Talab receives a large amount of domestic wastes, sewage and industrial effluents. It has floating lotus flowers, which are very useful in improving the Talab’s water quality. The effluent of water treatment plant of P.H.E. is also connected through this talab bringing some trace metals and chlorides in it. Authors examined physicochemical parameters like pH, dissolved oxygen, biochemical oxygen demand, and chemical oxygen demand to ascertain the water quality of this talab.Chemistry of Sarpat plants as well as chemistry of other chemicals and their effect on water quality is also studied.