Groundwater Chemical Characteristics Of Ningyang Chemical Industry Zone And Pollution Source Identification Research

In this paper, the groundwater tracing method as the core, based on the analysis of domestic and foreign water tracing method, to analyze the hydrochemical characteristics of groundwater and groundwater pollutant characteristics as the research object, and takes Ningyang biological high technology industrial base as the study area, spatial characteristics of water pollutants and stack of surface water, soil and ground water from pollution source pollutants the chemical characteristics and the method are analyzed, and the enterprise products and raw materials and the characteristics of the groundwater pollutants were analyzed, analysis results show that, the correlation case of groundwater and surface water, soil characteristics of pollutants and contaminants as chemical enterprises with high pollution source, the conclusion that Huayang pesticide factory as the representative of the pesticide and the chemical enterprise occupies higher groundwater pollution in proportion, provides a good case for the study of groundwater pollution tracing method for groundwater pollution and repair, the next step provides a theoretical basis for governance, so as to better protect the groundwater and drinking water safety.The followings are conclusions:(1)Biological high-tech industry base intensive industrial activities lead to increase the concentration of inorganic index in the surface water, groundwater, especially K+, Na+ and three nitrogen index. groundwater volatile organic compounds(VOCs) and semi volatile organic compounds(SVOCs) are significantly higher in the detection rate and detection of concentration. Among them, VOCs are mainly some hydrocarbon pollutants, such as chloroform, carbon tetrachloride, 1,2-dichloroethane and so on. Detection of SVOCs are mainly PCB47 and double(2-ethyl hexyl) phthalic acid ester, etc.(2)Enterprises assembling in groundwater is Ca-Cl type water, and Dawen River on the north shore, the main mining area of east Wu source for Ca-HCO3 type water, south near the Dawen River, groundwater gradually transition Ca-SO4 type water and groundwater survey area for chemical aggregation area Ca-Cl groundwater to the surrounding transition Ca-HCO3 type of groundwater in that gathered in the vicinity of the groundwater is affected by aggregation of the enterprises in the area of pollution.(3)The main Characteristics of pollutants are three nitrogen, benzene, carbon tetrachloride, chloroform, 1,2-dichloroethane, PCBs, PAHs and pesticides. Nitrate pollution may come from is produced in the district in nitric acid, potassium nitrate, magnesium nitrate, aniline and nitrobenzene in the production process of high nitrogen waste water, waste gas and waste residue, excessive use of nitrogen fertilizer, nitrogen rich life sewage; Benzene may come from nitrobenzene, methyl-1605, aldicarb, two pendimethalin, chloro benzonitrile oil production projects, and the area’s extensive use of petrochemical products and so on is also an important source of these pollutants; Carbon tetrachloride may come from the MIC, aldicarb production project and other pollution sources; 1,2-dichloroethane detected may come from two pendimethalin, methyl-1605 production projects and other pollution sources; The detection of PCBs and PAHs may have other sources of pollution; Pesticides may come from the early use of pesticides in agricultural production, methyl parathion and parathion may also have close relationship with methyl parathion pesticide production in the area.