Groundwater Simulation of Some Farm Nitrate Pollution along the Yellow River

The quality of groundwater directly or indirectly affects the living environment and health of human beings. Some farm in Zhengzhou city along the yellow area as the research object, investigated the regional hydrogeological conditions, by using Modflow in GMS and MT3D two modules model of groundwater flow and solute transport model, selection of nitrate as to simulate the pollution factors of groundwater pollutant migration law predict, simulate the nitrate pollution factor initial concentration of 25 mg/L, The migration rule, pollution range and concentration distribution of 1000 days, 5 years, 10 years and 15 years were selected in the simulation period. Finally, according to the prediction results, the pollution status of nitrate to groundwater environment is obtained.

I. Preface

Water is a necessary condition for all biological activities and has dual attributes of basic natural resource and strategic economic resource, which determine the importance of water [1]. Groundwater is an important part of the earth's water resources, a valuable resource for the sustainable development of society and the protection of people's survival and health, and plays an important role in domestic water resources [2]. In recent years, due to the rapid economic development, modern industry, agriculture demand more water, need to develop new water resources. Groundwater is widely distributed, good water quality, strong water supply capacity and other advantages are exploited. However, people often forget to protect groundwater resources while developing and utilizing them. The “three wastes” generated in industry, pesticides used in agriculture, irregular operation of aquaculture industry, and random piles of garbage in cities will all pollute the groundwater environment to varying degrees, and the problem of groundwater pollution is becoming increasingly serious [3]–[5].