Study On Prevention And Control Scheme Of Water Pollution In Wushui River Basin

Water plays an important role in our life,it is the source of life,human survival and development is indispensable to one of the most important material resources.Wushui river basin is located in the south of hunan province,is a tributary of beijiang river system in the pearl river basin.As an important river basin in xiangxi tujia and miao autonomous prefecture,the drinking water source in wushui river basin provides an important guarantee for the water supply of the people in xiangxi autonomous prefecture,jishou city and fenghuang county,making a great contribution.However,due to the pollutants brought by the socio-economic development in the basin,such as the internal pollution caused by the industrial sewage,domestic sewage,aquaculture and planting sources in the reservoir area,the water body of wushui river basin is polluted,posing a potential threat to the safety of drinking water in the source protection area.Due to the complex pollution of watershed water,it is of far-reaching practical significance to explore new ideas and methods to solve watershed water pollution and ensure the sustainable utilization of watershed water resources.This paper analyzes the amount of pollutants into the river according to the types of pollution sources such as industrial sewage,urban sewage,rural sewage,domestic garbage leachate,livestock and poultry breeding industry,aquaculture industry and planting industry.There are the following main problems in wushui river basin: the surface water quality is facing the risk of further deterioration;It is difficult to guarantee the quality safety of drinking water sources;Agricultural non-point source pollution is heavy;The construction of sewage collection network and treatment facilities is not perfect;Lack of ecological security management capacity;Water environment monitoring capacity urgently needs to be strengthened.It can be divided into the control unit of tonghe river,tuojiang river and wanrong river.Based on the calculation of environmental capacity and the corresponding relationship of control unit,the change trend of water environmental quality is studied to estimate the water environmental capacity of wushui river basin.This paper evaluates the status quo of watershed water environment quality,analyzes and diagnoses the causes and mechanism of watershed water pollution,and puts forward a reasonable technical route for prevention and control of watershed water pollution from three aspects: treatment of watershed pollution sources,restoration and protection of watershed ecology,and capacity building of environmental supervision.After implementation,the ecological environment can be significantly improved,the ecosystem structure tends to be reasonable,the vegetation coverage rate can be improved,the ecological function can be restored and strengthened,and the biodiversity can be effectively protected,which will play a very significant role in water conservation,ecological environment improvement and disaster prevention and reduction.Through the implementation of this study,the water environment quality in the basin will be further improved,the water environment ecosystem will be improved,and a beautiful ecological environment will be formed in the basin.