Analysis And Evaluation Of Heavy Metals In Mahe River Basin Surface Water

Researchobjectives:Based on the rapid development of Xinjiang agriculture,industry and urbanization in recent years,this paper has a certain influence on the surface water environment.In this study,three sections of Mahe River,mushroom lake,Daquan ditch and Jiahezi are studied.To study the surface water heavy metal content of pollution,analysis of pollution and pollution sources,and its comprehensive evaluation.Research content:(1)Analysis of Heavy Metal Content of Surface Water in Shihezi Area and Its Source Analysis.(2)The spatial distribution of heavy metal elements in surface water and its characteristics in Shihezi area.(3),the suitability of water quality standards to evaluate the applicability of heavy metal content in the surface of the study area.(4)recommendations and measures for the prevention and control of pollution proposed for heavy metal pollution.Research significance:In the background of increasing water resources and the increasingly developed industry,the study of the pollution of heavy metals in the surface water of Shihezi area in Xinjiang can provide a data base for the safe and rational allocation of water resources in Shihezi area and neighboring cities.It is important for the promotion of water pollution caused by industry and life It is of great theoretical and practical significance to study the heavy metal pollution of water body for the development and utilization of water resources and sustainable development.Research results:(1)Through the statistical analysis of the detection data of different sampling points,Indicating that the surface water Cu,Zn,Cd,Pb concentrations were not exceeded,and the concentration of heavy metals at each sampling point did not change much.A few points(mushroom lake,Daquan ditch)content is slightly higher,But are less than the surface water quality standards II level.(2)From the difference of Cu,Zn,Cd,Pb in surface water and the main distribution,Although the contents of Cu and Zn were not exceeded,But the concentration is relatively high,Study its distribution,The source of pollution is mainly from industrial emissions and agricultural drainage.(3)The concentrations of Cu,Pb,Zn and Cd in the surface water of the mushroom lake and the Daquan ditch reservoir in Shihezi areas are higher than those in the Shihezi urban area,as the mushroom lake in Shihezi areas is the main area of urban wastewater discharge,therefore it is further explained thathuman life and production activities emission is the main factor of the increase of heavy metal content in the mushroom lake reservoir.(4)Respectively the mushroom lake reservoir water area under the water monitoring and analysis of heavy metals,Its heavy metal concentration content is higher than other sampling points,Especially Pb concentration is higher,Through the pollution index evaluation that,Water heavy metal content are in line with national standards for water quality requirements,The region's water supply meets the water demand for agricultural production and aquaculture.