外文翻译一篇，污水工艺的。英译汉，1000字左右。

【专家解说】：一·生产废水篇 One of production wastewater 1.工业污水的治理方法 1of industrial wastewater treatment method 一种处理工业污水的方法，属于污水处理技术领域。其是将污水引往集水池，对集水池末尾一格调节pH，用一级溶气水泵提升到一级压力溶气罐，同时吸入空气和聚凝脱色剂，将在一级压力溶气罐内的一级饱和溶气水骤然释放到一级气浮池形成一级处理水；一级处理水溢入缓冲池，再在控制pH用二级溶气水泵将一级处理水提升至二级压力溶气罐内，同时吸入空气和聚凝脱色剂，将二级压力溶气罐内的二级饱和溶气水骤然释放到二级气浮池形成二级处理水并自溢至沉淀池沉淀后排放；一、二级气浮池中的浮泥入浮泥池，压滤成滤饼，滤液回引至集水池。本方法处理的工业污水的CODcr、脱色率、SS、BOD5的去除率分别为80～90％、95％、90％以上、75－80％，符合GB8978－1996一级水排放标准。沼气发电是集环保和节能于一体的能源综合利用新技术。它利用工业污水经厌氧发酵处理产生的沼气，驱动沼气发电机组发电，并可充分利用发电机组的余热用于沼气生产，使综合热效率达 80 ％左右，大大高于一般 30~40% 的发电效率，用户的经济效益显著是处理工业污水的好方法。 A kind of industrial sewage processing method, belonging to the technical field of sewage treatment. The sewage which leads to the sump for collecting tank, at the end of a regulator of pH, with a dissolved air pump to a pressure air dissolving tank, at the same time of inhaled air and coagulation decolourant, will be at the level of pressure dissolved air tank level within the saturated dissolved air water suddenly released into a flotation tank form a level of processing water; a water spill into the buffer pool, and then in the control of pH two gas dissolved water pump level water level to the two pressure dissolved air tank, at the same time of inhaled air and coagulation decolourant, two stage pressure dissolved air tank two level within the saturated dissolved air water suddenly released into the two stage flotation tank to form the two stage of processing water and overflow to the sedimentation tank for sedimentation after discharge; one or two level in the flotation tank floating mud into the mud pool, filter into cake, leachate to lead to water collecting tank. The method for processing industrial wastewater decolorization rate of CODcr, SS, BOD5, the removal rates were 80~ 90%,95%,90%,7580%, consistent with the GB89781996level water discharge standard. Biogas power generation is a set of environmental protection and energy saving in one of the new technology of comprehensive utilization of energy. It uses industrial wastewater by anaerobic fermentation processing to produce biogas, biogas generator drive, and can make full use of the waste heat generator for the production of biogas, the integrated thermal efficiency of about 80%, significantly higher than the general 30 ~40% of the power generation efficiency, user's remarkable economic benefit is industrial sewage processing method. 2.农业污水的治理方法 2agricultural sewage treatment method 农业污水因为分布面广而分散，难于收集也难于治理，所以只能利用生物的作用将污染物去除，譬如将高密度的高效去污菌，直接投入污染水体，以达到净水的目的。 Agricultural wastewater because of wide distribution and dispersion, difficult to collect is difficult to control, so only use the biological role of the pollutant removal, such as high density efficient decontamination bacteria, directly into the contaminated water, in order to achieve the purpose of purifying water. 3.医疗污水的治理方法 3medical sewage treatment method 医院污水处理，通常包括一级处理和二级处理。一般地说，若处理后出水排入市政下水道，通常只进行一级处理；若处理后出水直接排入河道，则需进行一级处理和二级处理；对排放标准严的地区，为防止水体的富营养化，需进行除磷脱氮三级处理。对酸性废水、洗相废水、放射性污水等特殊的医院污水，应进行严格的收集和处理。有些地区为缓解供水紧张的矛盾，已进行医院污水的深度处理和循环利用。实际采用何种方式处理医院污水，应综合考虑污水的来源、污水的流向及当地的供水情况等多方面因素。另外，医院污水处理一个非常重要的方面，就是必须进行消毒处理，以杀灭各种病原微生物。 Hospital sewage treatment, usually including a stage and two stage treatment. Generally speaking, if the treated water is discharged to a municipal sewer, usually only primary treatment; if the treated water is discharged directly into the river, need to carry on a treatment and two stages of treatment; the emission standard is strict region, in order to prevent the eutrophication of water bodies, need for nitrogen and phosphorus removal of three stages of treatment. The acidic waste water, washing wastewater, radioactive sewage and other special hospital sewage, should be carried out in strict collection and treatment. Some areas to alleviate the conflict of water supply, has been performed in hospital sewage advanced treatment and recycling. Practical ways to treat hospital sewage, should consider the sources of sewage, sewage flows and the local water supply and other factors. In addition, the hospital sewage treatment is a very important aspect, is must be disinfected, to kill various pathogenic microorganisms. 二·生活污水篇 Two of life sewage 1.农村生活污水治理方法 1rural domestic sewage treatment method 针对农村生活污水，可以进行以下处理： For rural domestic sewage treatment, can be the following: 生活污水→化粪池→厌氧池→人工湿地（种植根系发达、喜湿、吸收能力强的美人蕉、水葱、菖蒲等植物）经“过滤”后排放的方法进行处理，主要适用于农村分散生活污水处理，建成后运行费用基本为零，使用寿命在10年以上。 Sewage and septic tank, anaerobic pond and artificial wetland ( planting developed root system, like wet, absorption ability of Canna, Shuicong, calamus plant ) by the" filter" emission method for processing, mainly for rural decentralized sewage treatment, after the completion of operation cost is zero, the use of life in 10years or above. 2.城市生活污水治理方法 2city sewage treatment method 针对城市生活污水，可以进行以下处理： According to the city sewage, can be the following processing: 将城市生活污水输送到城市周围的农村，利用农村广阔的土地来净化城市生活污水。将是一劳永逸与一举多得的好方法。以日供应生活用自来水100W立方的大中型城市为例：普通的污水处理设施造价1000元/立方。建设成本10亿，年运营成本100W立方/天×365×0.5元/立方＝1.8亿.采用土壤净化法建设成本1000元/立方，年运营成本100W立方/天×365×0.1元/立方＝0.4亿. 同时年节约农用水资源3.6亿立方，节约化肥约1万吨/年，减少农药用量5吨/年，综合效益可观。 The city sewage transported to the city around the country, the use of rural broad land to purification of city sewage. Will be to put things right once and for all and too good method. In order to supply living water cubic 100W is large and medium-sized city for example: common sewage treatment facility cost 1000 yuan / cubic. 1000000000years of construction cost, operation cost of 100W cubic meters / day x 365x 0.5yuan / cubic = 180000000. Using soil decontamination method construction cost of1000 yuan / cubic meters, annual operation cost of 100W cubic meters / day x 365x 0.1yuan / cubic = 40000000. While saving agricultural water resource of 360000000 cubic meters, saving about 10000tons of chemical fertilizer, reduce pesticide consumption5 tons / year, integrated benefit is considerable.