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外文期刊>气象与环境研究：英文版
>Design and Operation of the Printing and Dyeing Wastewater Treatment Project by Combination of Coagulation Sedimentation - Hydrolytic Acidification with Aeration Tank - Biological Aerated Filter - Active Sand Filter
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Design and Operation of the Printing and Dyeing Wastewater Treatment Project by Combination of Coagulation Sedimentation - Hydrolytic Acidification with Aeration Tank - Biological Aerated Filter - Active Sand Filter
In order to protect quality of Baiyangdian surface water and Gaoyang groundwater, the project is applied to process printing and dyeing wastewater that contains complicated compositions, high concentrations of organics and SS, and lots of pollutants difficult to degrade by microorganism. The process and operating parameters of project are optimized and debugged, and its economic and environmental benefits are analyzed. The results show that the process of coagulation sedimentation - hydrolytic acidification with aeration tank - biological aerated filter - active sand filter is applied in Gaoyang Sewage Treatment Plant. The design scale of sewage treatment plant is 120 000 m3/d . The influent is as following： COD is 669 m g/L； SS is 424 m g/L； NH3-N is 8.83 m g/L； TP is 6.03 mg/L. After the process, the best removal rates of COD, SS, NH3-N and TP are 93.5% , 98.8% , 97.1% and 96.2% , respectively. The various indexes of effluent water complied with standard A of the first order in Pollutants Emission Standard of Urban Wastewater Treatment Plant (GB 18918 -2002). The processing cost is only 0.807 yuan/m3. As a result, the project construction and operation not only improve the environment, but also promote regional economic development. Process design and operating parameters provide an important reference value for the printing and dyeing wastewater treatment industry.
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机译：为了保护白洋淀地表水和高阳地下水的质量，该项目被用于处理印染废水，该废水的成分复杂，有机物和SS含量高，并且许多污染物难以被微生物降解。对项目的过程和运行参数进行优化和调试，并分析其经济和环境效益。结果表明，高阳市污水处理厂采用混凝沉淀-曝气池水解酸化-曝气生物滤池-活性砂滤池。污水处理厂的设计规模为120000 m3 / d。进水如下：COD为669 m g / L; SS为424 m g / L; NH3-N为8.83 m g / L; TP为6.03 mg / L。处理后，最佳的COD，SS，NH3-N和TP去除率分别为93.5％，98.8％，97.1％和96.2％。各种废水指标均符合《城市污水处理厂污染物排放标准》（GB 18918 -2002）中的一级标准A。加工成本仅为0.807元/ m3。结果，该项目的建设和运营不仅改善了环境，而且促进了区域经济发展。工艺设计和操作参数为印染废水处理行业提供重要的参考价值。
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