Qingdao Chongjie Environmental Protection Pingdu City Sewage Treatment Co., Ltd. was established in May 2003. The company is located in the south of Pingdu City, on the north bank of Zehe River and covers an area of 80 mu. With the BOT operation model, its franchise operation period is 20 years, and the treated water quality meets the first class A standard specified in the national standard GB18918-2002 of Pollutant discharge standards of urban wastewater treatment plants. The project was completed in three phases. As the phase III expansion of the wastewater treatment of the 12th five year key energy-saving and emission reduction projects in Pingdu City, it uses vertical fiber cloth media filter for deep filtration, and the discharged wastewater needs to reach the national first class A standard. At present, the company's comprehensive designed treatment capacity is 110,000 tons/day, the coefficient of variation is 1.4, and the maximum impact resistance is 154,000 tons/day. All the domestic and industrial wastewater in the urban area of Pingdu City can be completely disposed of, with a treatment rate of 100%. The entire system is highly reliable and the water output is stable to the standard. It is expected that the entire wastewater treatment work in the planning area of Pingdu City can be completely resolved within at least 5 years.
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