Pre-anoxic/Orbal Oxidation Ditch/Rotary Disc Filter Treatment of Mixed Sewage in Industrial Park  

作　　者：Hanyu XU Yushan WAN 

机构地区：[1]College of Environmental and Safety Engineering,Changzhou University,Changzhou 213164,China

出　　处：《Agricultural Biotechnology》2023年第1期72-75,共4页农业生物技术（英文版）

摘　　要：The design scale of a sewage treatment plant in the industrial center of a district in Changzhou is 2×10^(4) m^(3)/d. Data analysis, process selection and analysis and main structure design were carried out for the sewage treatment plant to ensure that the effluent quality meets the discharge standards. The operation results after the implementation of the project show that the project can effectively improve the effluent quality of the sewage treatment plant. The removal rates of COD, NH+4, TN and TP are 93.97%, 98.63%, 82.67% and 97.37% respectively, and the effluent quality can be discharged stably up to the standard. Using cost analysis to study the operation of the sewage treatment plant, the results show that the total investment of the sewage treatment plant is 40 million yuan, the electricity cost of this project is 0.426 yuan/m^(3), the pharmaceutical cost is 0.655 yuan/m^(3), and the material replacement fee is 0.323 yuan/m^(3). The direct operating cost is 1.404 yuan/m^(3). This method has good practical guiding significance for the optimization and operation transformation of the same type of sewage treatment plants.

关 键 词：Anoxic zone ORBAL Nitrogen and phosphorus removal Low carbon and high nitrogen 

分 类 号：X703[环境科学与工程—环境工程]