Caohai Dianchi Lake Water Pollution Control Plan

Caohai is located in the lowest of Lake Dian area, and is in this region the only wastewater containing water body. Lake Dian is in the natural succession process and has entered a period of aging and eutrofication. The lake is shallow lake, and therefore the lake water self-purification ability is weaker and weaker. The major rivers into Lake DIan run through some urban areas, villages, farms, industrial areas; therefore a large number of hazardous substances and nutrients are carried from those places into Caohai. With the growth of population around the river basin and growing urbanization, also the change of production and lifestyle, the pollution of lake water is rapidly increasing at present. Until now the quality of the lake water is much worse and the water has been severely pollution. So Caohai is the serious pollution source in Lake Dian area, and therefore it is the focus of pollution control in Lake Dian. The aim of this plan is to find some solutions to above problems, and a keystone of the integration treatment that could be implemented in the control of urban pollution. The importance of giving more attention to the ecological restoration and treatment of water in order to reach the good treatment methods to get observable effects is obvious. Most of the material of this thesis come from the office records and have not been published elsewhere