Study On Assessment And Protection On Water Environment Actuality In Daxing Region

With the development of industry and agriculture and the improvement of the standard of living of Daxing Region, the exploitation and utilization of water resource and water environment protection have been paid more and more attention to. It has important theoretical and practical meaning for the sustainable development of water resource that we should assess water environment and the actuality polluting resource and draw the countermeasure of water environment protection.Abased on synthesizing and analyzing the date of physical geography, topographty and physiognomy, geohydrologic condition and hydro project of Daxing Region, the status of water environment quality was discussed, including the water environment of surface water, groundwater, water resource and sewage irrigation region. Then the changing tendency of main contamination in all kinds of water body was discussed and the actuality polluting resource was investigated and assessed, including industrial pollution, agricultural pollution and domestic pollution. Lastly the distributing status and polluting cause of point pollution and non-point pollution was analysed. The result indicated: water body in Daxing Region was polluted severity, and included many kinds of contamination. The quality of the groundwater was bad, the contamination included CaCO3, , N03-N, NO2-N,etc. The quality of Huang village water source was well, and adapted to drink and use. The main polluted industry included deli, plating , brewing, weaving printing and dyeing,etc. The point pollution source occurred from June to September, and had few change in space.Water function of research region was zoned, and the protecting region of water source in Huang village was set. The countermeasures of production about water source include: execute the law and manage strongly; set up the protect region of city ground water source and carry out sanitation system of water source protection; prevent the pollution of supply area; build forested area to defend water source and construct man-made groundwater recharge project; set up monitoring system of water quality and water quantity of water source. The measure of protection of surface water include-, carry out the portrait administering mode; dispose sewage; enhance the capability water environment and water body's self-cleaning ability. The measures of protection of ground water include: intercept and store rainfall runoff and river water after flood to supply groundwater; deal with polluting source; use groundwater effectively; dispatch water from other drainage area and strengthen the management of groundwater of deep layer.