| 制药废水生化出水的强化混凝—高级氧化深度处理组合工艺比较 |
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| 引用本文： | 卢钧,陈泉源.制药废水生化出水的强化混凝—高级氧化深度处理组合工艺比较[J].化工环保,2021,41(2):161-167. |
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| 作者姓名： | 卢钧 陈泉源 |
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| 作者单位： | 1.东华大学 环境科学与工程学院,上海 201620;2.国家环保工程纺织工业污染治理工程中心,上海 201620 |
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| 基金项目： | 国家重点研究发展计划项目（2019YFC0408503）; 中央高校基本科研专项资金项目（CUSF-DH-D-2019082,19D311306） |
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| 摘 要： | 采用强化混凝和高级氧化法对制药废水生化出水进行深度处理,比较了不同混凝剂、不同氧化方法（包括Na2S2O8氧化、电化学氧化、Fenton/类Fenton氧化）的处理效果。实验结果表明：经聚合硫酸铁与聚丙烯酰胺强化混凝处理后,废水的COD去除率达18.5%;强化混凝与不同氧化方法联用均可使废水脱色至无色,COD去除率达70.1%~92.4%。强化混凝—电化学氧化组合工艺的出水COD为27.1 mg/L,达到GB 8978—1996《污水综合排放标准》一级标准限值要求,且成本较低,适于实际应用。
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| 关 键 词： | 制药废水 生化出水 深度处理 强化混凝 Na2S2O8氧化 电化学氧化 Fenton/类Fenton氧化 |
| 收稿时间： | 2020-07-30 |
Comparison of enhanced coagulation - advanced oxidation combined processes for tertiary treatment of pharmaceutical wastewater |
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| LU Jun,CHEN Quanyuan.Comparison of enhanced coagulation - advanced oxidation combined processes for tertiary treatment of pharmaceutical wastewater[J].Environmental Protection of Chemical Industry,2021,41(2):161-167. |
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| Authors: | LU Jun CHEN Quanyuan |
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| Institution: | 1. School of Environmental Science and Engineering,Donghua University,Shanghai 201620,China;2. State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry,Shanghai 201620,China |
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| Abstract: | The enhanced coagulation and advanced oxidation methods were adopted for tertiary treatment of the biological effluent of pharmaceutical wastewater. The treatment effects of different coagulants and different oxidation methods （including Na2S2O8 oxidation,electrochemical oxidation and Fenton without Fe2+ addition/Fenton-like oxidation） were compared. The results show that: After the wastewater is treated by enhanced coagulation with poly-ferric sulfate and PAM,the COD removal rate reaches 18.5%;Combined with different oxidation methods,the wastewater is decolorized completely and the COD removal rate reaches 70.1%-92.4%. The effluent COD by the combination process of enhanced coagulation-electrochemical oxidation is 27.1 mg/L,which meets the requirement of I-class standard of China GB 8978-1996. Furthermore,the process is appropriate for application with low cost. |
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| Keywords: | pharmaceutical wastewater biological effluent tertiary treatment advanced coagulation Na2S2O8 oxidation electrochemical oxidation Fenton/Fenton-like oxidation |
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