Heavily polluted wastewater treatment plant sewage treatment equipment in industrial wastewater treatment effluent caused in our country has attracted much attention. Currency court launched sewage treatment equipment based on different types of water, took a different design and technology, including for industrial wastewater treatment, sewage treatment equipment adhere to the following principles: ① difficult to contain toxic pollutants biodegradable waste, coins should not be discharged into the city sewer and sewage treatment plant exports, and should be treated separately. ② the use of toxic materials and toxic intermediate products and production process, the use of rational processes and equipment, and strict supervision of the operation and to eliminate the escape of, treatment of industrial waste water, minimize the loss amount. ③ waste water containing toxic substances, which contain a number of heavy metals, radioactive substances, the high concentration of phenol, cyanide and other waste and other waste diversion should facilitate the processing and recovery of useful substances. ④ some of the traffic flow and light pollution of water, such as cooling water, should not be discharged into the sewer, so as not to increase the city sewer and sewage treatment plant load. Such waste should be recycled in the plant treated properly. ⑤ composition and properties similar to the city's currency sewage organic waste, such as waste paper, sugar wastewater, food processing wastewater can be discharged into the city sewage system money. We should build a large sewage treatment plant, including bio-oxidation pond construction to local conditions, water reservoir, land treatment system simple and feasible treatment facilities. Compared with the small sewage treatment plants, industrial wastewater discharge standards, large sewage treatment plant significantly reduced both capital and operating costs, because water quantity and quality and stability, Putian industrial waste, easy to maintain good health and treatment effect. ⑥ Some biodegradable toxic waste such as phenol, cyanide wastewater plant after treatment, according to the allowable emission standards coins into city sewers, sewage-treatment plant for further processing biological oxidative degradation. The use of sewage treatment equipment not only to strictly ensure the results, and can not bring secondary pollution of city money. In order to increase the environmental benefits, the design of sewage treatment facilities should be increased wastewater reuse technology. Guangzhou Fu students southern Dongguan environmental protection papermaking wastewater engineering: the basic principles of industrial wastewater treatment (a) preferred non-toxic manufacturing process or reform instead of backward production technology to produce as much as possible in the production process or reduce hazardous wastewater. (B) the use of toxic materials and toxic intermediates and products in the process, should be strictly operation, elimination of toxic substances leaking to reduce losses and maximize the use of rational processes and equipment. (C) the waste water containing toxic substances such as heavy metals contain radioactive substances, the high concentration of phenol, cyanide for processing and recovery of useful substances. (Iv) greater flow and less contaminated wastewater should be treated properly recycled, metallurgical industry waste water treatment works, plus the city should not be discharged into the sewer drains and urban sewage processing load. Similar urban sewage organic waste, such as food processing waste water, sugar water, paper waste water can be discharged into municipal sewage system for treatment. (E) Some biodegradable toxic waste, such as phenol, cyanide waste, should be treated, according to the allowable emission standards into the city sewers, further biological treatment. (Vi) poorly biodegradable toxic waste should be treated separately and should not be discharged into the city sewer. Development trend of industrial wastewater treatment is to waste water and pollutants as a useful resource or implementation of closed loop recycling. (VII) hard-biodegradable toxic waste should be treated separately and should not be discharged into the city sewer. Development trend of industrial wastewater treatment is to waste water and pollutants as a useful resource or implementation of closed loop recycling. Guangzhou Fu students environmental Xingtan dyeing centralized wastewater treatment works (3600m3 / d): dyeing industrial wastewater treatment project _ Fu students (certification) _ Putian industrial waste provided by the Environmental Protection Engineering Co., Ltd. Guangzhou Fu students. Environmental Protection Engineering Co., Ltd. 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