【正文】 pumping station As part of the water will precipitate some sludge, so the return sludge pump submersible pump, to enhance the use of sludge submersible centrifugal pumps, construction simple and pact sludge volume 1250 m3 / h, the sludge moisture content %.(11)between chlorination This project uses chlorine dioxide disinfection, contact tank responsible for wastewater effluent dosing point sewage pond in the front reflux 1813 m3 / h, the average amount of chlorine 8 mg / l, a single effective yield chlorine / , the significance of the sewage treatment With the development of urban water shortages increasing pressure to pursue the root causes of urban water crisis, it is increasingly recognized that munity water cycle beyond the natural cycle of water can carry a , only full respect for the natural movement of water, the rational use of water resources, making water recycling upstream region does not affect the function of water downstream waters, without prejudice to the objective laws of social cycle natural circulation, thereby maintaining or restoring good water environment and the watershed of the city, The effective way is the sustainable use of water resources which requires us from “wateruser” into open water unidirectional mode is “sparingly wateruserrecycled water” feedback circulation processes, improve water use this major shift patterns of water use and enhance wastewater reuse is the the advancement of science and technology, urban sewage is no longer a waste, but a valuable is a resource, it is necessary to maximize the urban sewage recycling rate, one can reduce pollutant emissions, and second, to save the limited water Division of Water Resources Deputy Director Xiaoice from Tsinghua Speaking on the university and China Water Network39。s fast economic growth is , there is a problem(A)environmental health infrastructure is network extends to rural areas has just started, Xuanhua District sewer pipe network has not yet formed.(B)the local municipal wastewater treatment system is still in the development stage.(C)poor awareness of environmental protection, do not know the relationship between conservation and sustainable development of resources, lack of initiative to curb environmental pollution to the environment “dirty, chaotic, and poor” phenomenon for granted, turn a blind , the existence of the phenomenon are still natural , the problem of reason After my research and ask our staff to blame for urban sewage treatment and disposal difficult for many reasons, including:(A)redevelopment, light the first few panies in the development of the concept of governance is still the dominant idea in economic construction, caught in the process of industrial development, sewage treatment is lagging behind.(B)the publicity is not in of the government and the society is not in place, people are not aware of the difficulty of sewage treatment, water waste.(C)supervision are omissions surveillance departments, resulting in people taking advantage of a loophole, causing water funds(four)of urban sewage treatment facilities gap sewage treatment facilities are public projects, public financial investment is very limited, leading to the sewage treatment plant equipment behind, low processing efficiency.(E)the appropriate punishment laws is punishment is not enough cause many panies ignore the law and regulations, after the punishment is still its own way, can not pletely solve the problem of environmental pollution.(Vi)lack of appropriate methods and incentives to report, citizen participation enterprise reporting pollution are not , make remendations To solve these problems we propose some suggestions: businesses to set up environmental monitoring department of the enterprise for the detection and assessment of environmental government funding to further improve the sewage disposal sites in line with national the advanced wastewater treatment technology, the introduction of foreign advanced sewage treatment equipment to improve the efficiency of wastewater treatment and build waste water treatment facilities, the construction of multifinancing platform to solve the financial problems of sewage treatment and improve environmental sanitation in the laws, regulations and punishment measures, so that government law, the production heart and to strengthen the social and civic education and promotion of watersaving and environmentally friendly, watersaving society from every citizen to start saving in order to achieve the best government set up the appropriate reporting department and reward measures to increase citizen participation in social monitoring of urban residents living water emissions charges measures in order to enhance awareness of water conservation sewage treatment survey feelings Through this investigation, I learned a lot about th