The company can also be free of charge supply, up to standard payment, sewage treatment does not meet the standard, double the compensation for economic losses. This company has recently done engineering cases are: Case 1: domestic sewage treatment and reuse Guizhou College of Finance and Economics new campus is a key project in Guizhou Province, by the Guizhou Provincial, Municipal and District People's Government attaches great importance to ensure that Guizhou College of Finance and Economics on September 1, 2011, the opening of the use of the new campus, the sewage treatment works to be effectively dealt with, the decision of 1,200 tons of domestic sewage per day, Guizhou Great Wall Environmental Protection Technology Co. Ltd. adopts "Conductive Aeration Biofilter (CCB)" to treat the sewage of the new campus, without increasing the premise of the project investment, the sewage treatment result reaches the standard of "Urban Sewage Recycling Urban Miscellaneous Water Quality" (GB/T18920-2002), and "Urban Sewage Recycling Water Quality for Landscape Environment" (GB/T18920-2002), and "Urban Sewage Recycling Water Quality for Landscape Environment" (GB/T18920-2002). Water quality" (GB/T18921-2002) in all the requirements. Case 2: hospital sewage treatment and reuse China's first hospital sewage water reuse project in 2009 by the Guizhou Great Wall Environmental Protection Technology Co., Ltd. in Sichuan Panzhihua Third People's Hospital construction success, and accumulated valuable experience, in 2010, Guizhou Great Wall Environmental Protection Technology Co., Ltd. in the summarization of the experience on the basis of the construction of the Affiliated Hospital of Hebei Provincial Chengde Medical College sewage water reuse project, got the Chengde Municipal Government, the Municipal People's Congress, the Municipal People's Consultative Conference of the high praise. Case 3: treatment of food industry wastewater pollution treatment of food industry wastewater pollution, if it is not three high wastewater, it is best to use conduction aeration biofilter, Guizhou Yonghong Food Factory using air flotation + conduction aeration biofilter, the treated water to achieve water reuse, Guizhou Weining Industrial Group Slaughterhouse using air flotation + conduction aeration biofilter, the treated water discharged into the natural water body, Guizhou Qingzhen Slaughterhouse using air flotation The slaughterhouse in Qingzhen, Guizhou adopts air flotation + inflow aeration biofilter, and the treated water reaches the primary A standard of urban sewage treatment. Case 4: halogenated products wastewater treatment The other is halogenated products wastewater, the use of synergistic catalytic oxidation + inflow aeration biofilter, with absolute advantages, such as Chongqing Pork Bafu Foods production of pickled pepper phoenix claws and pickled pepper duck palms, goose palms, etc., because of the wastewater containing oil, salt are high, pigmentation, BOD in more than 9,500mg/l, COD in more than 4,800mg / l, SS in 600mg/l or more, ammonia nitrogen in more than 600mg/l, ammonia nitrogen in more than 600mg/l. / l or more, ammonia nitrogen in SS in 2880mg / l or more, due to a single biochemical method can not be solved, the final choice of synergistic catalytic oxidation + inflow aeration biofilter, treated sewage water standards. Case 5: pickled wastewater treatment There is also pickled wastewater, the use of co-catalytic oxidation, but also, with absolute advantages, such as the Chongqing Fish Spring Pickle Group's pickled wastewater, the company's first anaerobic + aerobic biochemical treatment, due to the treatment does not meet the standards, and then three times the transformation has been invested more than 3,000,000 yuan, the treatment effect is unsatisfactory, and finally the use of co-catalytic oxidation + infusion aeration biofilter, the treated effluent reached the standard of water. Finally, the synergistic catalytic oxidation method + inflow aeration biofilter was adopted, and the treated wastewater reached A standard. Case 6: Pharmaceutical wastewater treatment The wastewater discharged from Guizhou Guangzheng Pharmaceutical Factory is characterized by high concentration, difficult treatment and non-biochemical, etc. Guizhou Great Wall Environmental Protection Science and Technology Co., Ltd. has adopted the synergistic catalytic oxidation method + inflow aeration biofilter to treat the wastewater, which has reached the first class A standard of urban wastewater treatment. Synergistic catalytic oxidation and inflow aeration biofilter in the Great Wall of Guizhou Environmental Protection Technology Co.