Remediation And Prevention Of Groundwater Pollution In Handan City

Handan City is located in the south of Hebei Province,is one of China's serious water shortage.Handan City,in addition to the river in addition to the flood period,the basic in the drying state,is the surrounding industrial and mining enterprises satisfied that the sewage body.Groundwater is an important component of water resources,especially in the northern cities,and groundwater has become the main source of water for urban domestic water,industrial and mining enterprises and agricultural irrigation water.Groundwater is concealed,irreversible,the diversity of components and the complexity of the system,it is difficult to be repaired once it is contaminated.Therefore,the governance and protection of groundwater is particularly important for the sustainable development of the local economy.Based on the existing data collected,the combination of hydrogeology and environmental science,based on the theory and method of environmental quality assessment and pollution evaluation,analyzes the pollution characteristics of groundwater and the main pollution sources in Handan urban area.Evaluation of Groundwater Environmental Quality.Finally,the main pollutants for pollution prevention and control measures for the Handan City,underground water source protection and groundwater pollution control to provide reference and reference.The main results of this paper are as follows:(1)The main problems in the process of exploitation and utilization of groundwater resources in Handan City are serious drop in groundwater level,severe surface water pollution and low water resources recycling rate.(2)The main pollution sources of groundwater in Handan are industrial wastewater,surface water pollution,solid waste,pesticide and chemical fertilizer application,urban sewage,which is the main source of pollution of groundwater pollution.(3)Ten evaluation points were used to evaluate the 10 monitoring points in the plexus,Wuli shop,Zhangzhuang bridge,Liuwangzhuang,Huangzeng dream,Xi duck pond,Dongcheng,South sheep well,big desire village and west estuary.The evaluation results show that the groundwater is the worst area in the plexus,Liuwangzhuang,Zhangzhuangqiao and Dongcheng,the large area is better for the groundwater quality,and the groundwater in the Xihekou and Nanyangjing is a good area.(4)Based on basic hydrogeological conditions and calculation of basic parameters in the test areas,the pump and treat system of nitrate pollution remediation was designed by using Numerical Simulation.The different schemes were used to demonstrate that the grading water output mode compared to the constant water output mode save the total water output,improve operational efficiency and reduce operating costs.(5)Based on the evaluation of groundwater pollution in Handan City,the groundwater pollution treatment technology and the prevention and control of groundwater pollution in Handan City were put forward to improve the groundwater environment and ensure the harmonious development of social economy and natural environment in Handan City.