Research On The Evaluation Of Water Environmental Quality And The Control Measures Of Pollution For Shuimo River In Urumqi

Xinjiang is a large province of drought and water shortage,so the protection and utilization of water resources is a very significant subject.Due to the rapid development of social economy and rapid expansion of population,water environment pollution has become the focus of people's attention.This paper studies the evaluation method and pollution trend analysis method of water environment quality of Shuimo River,and formulates the water environment pollution control measures which are suitable for Shuimo River.Based on the water quality monitoring data of Shuimo River from 2012 to 2016.Taking the 2016 monitoring data as an example,this paper evaluates the s tatus quo of section water quality of river Mill by means of the combination of single factor pollution index method and comprehensive pollution index metho d,and analyzes the characteristics of environmental pollution of river Mill.The results show that the five monitoring sections of the Water Mill River,the quali ty of the spring section of the enamel plant are in good condition,and the water quality of the I type of II is maintained every year,which meets the water quality requirements of the functional area of the s ource,and the main pollution indexes are dissolved oxygen,chemical oxygen d emand and 5th biochemical oxygen demand;The main pollution indexes are ch emical oxygen demand,5th biochemical oxygen demand and total phosphorus,and the water quality of the ? section meets the standard of surface water type,which meets the water quality requirements of agricultural irrigation water,an d its main pollution index is chemical oxygen demand and biochemical oxygen demand on 5th;The main pollution indexes are chemical oxygen demand,5th b iochemical oxygen demand and total phosphorus,the water quality of the ? se ction meets the standard of surface water type,meets the water quality require ments of agricultural irrigation water,its main pollution index is chemical oxyg en demand,5th biochemical oxygen Demand,the Miquan Bridge section and th ree Zhuang sections are seriously exceeded due to the reasons of sewage import,The evaluation results are inferior ? water quality,especially chemical oxyge n demand,ammonia nitrogen,permanganate index and other five types of pollu tants year-round more than ? class standards,its main pollution indicators are ammonia nitrogen,total phosphorus and 5th biochemical oxygen demand.Over all,the main pollutants in the river mill are basically increasing from upstream t o downstream with the river Mill.According to the rank correlation coefficient method,the variation trend of major pollutants in Shuimo River basin in the last five years was analyzed.The spring section of the enamel plant was the source of the basin,and there were no significant upward or downward trend of pollutants in the five years.The five-day biochemical oxygen demand in the cross section of the Seven-spinning Bridge had a significant trend of increase in five years.The five-day biochemical oxygen demand,ammonia nitrogen and oil in the section of Lianfeng Bridge all showed a significant increase trend in five years.The Miquan bridge section and the three zhuang sections have received the production waste water of the coastal industrial and mining enterprises and the living sewage of the surrounding residents.Although all the indicators have improved,the water quality has not improved.According to the main problems existing in shuimohe river,the following countermeasures for prevention of water environment in Shuimo River are proposed:optimizing the rational allocation of water resources to guarantee the ecological flow of the river,controlling the discharge of various pollutants,carrying out comprehensive treatment and protection of the ecological environment of the river basin,strictly supervising environmental law enforcement and strengthening water environment management capacity.In conclusion,this paper studies the water quality assessment method and trend analysis method of Shuimo River,and rationally formulates effective measures to protect water environment,aiming to make good use of water resources in Urumchi,effectively control the environmental pollution of water in Shuimo River,and master the characteristics of water quality and changing rules.In this way,we can better protect the water resources of the Shuimo River and provide protection for the water resources of Urumchi at the same time.