微电解-Fenton-生化组合工艺处理实验室废气吸收尾液

Micro-Electrolysis-Fenton-Biochemical Combination Process for Laboratory Waste Gas Absorption Tailings

摘要: 针对某高校实验室废气净化设备排放的吸收尾液废水有机成分复杂、B/C低和水质变化大等特点，首次采用微电解-Fenton-生化组合工艺进行实验室废气吸收尾液废水处理。处理设施运行结果表明，该组合工艺运行稳定，出水SS、COD_cr、BOD₅、NH₃-N、阴离子表面活性剂和挥发酚分别低于200 mg/L、210 mg/L、74 mg/L、19 mg/L、8.5 mg/L和0.5 mg/L。出水各项指标均达到了《污水排入城镇下水道水质标准》(GB-T31962-2015)表I中A级排放标准。工程总投资136.4万元，单位运行成本6.24元/m³。

Abstract: Aiming at the characteristics of complex organic composition, low B/C and large water quality changes in the absorbing tail liquid wastewater discharged from laboratory exhaust gas purification equipment in a certain university, the micro-electrolysis-Fenton-biochemical combined process was used to treat the laboratory exhaust gas absorption tail liquid wastewater. The results show that the combined process is stable and the effluent SS, COD_cr, BOD₅, NH₃-N, anionic surfactant, and volatile phenol are lower than 200 mg/L, 210 mg/L, 74 mg/L, 19 mg/L, 8.5 mg/L, 0.5 mg/L, re-spectively. Various indicators of the effluent have achieved the Class A discharge standard in Table I of the “Water Quality Standard for Sewage Discharged into Urban Sewers” (GB-T31962-2015). The total project investment is 1.364 million yuan, and the operating cost is 6.24 yuan/m³.