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Na_(2)S_(2)O_(8)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。
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 Na_(2)S_(2)O_(8) 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.
作者
卢钧
陈泉源
LU Jun;CHEN Quanyuan(School of Environmental Science and Engineering,Donghua University,Shanghai 201620,China;State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry,Shanghai 201620,China)
出处
《化工环保》
CAS
CSCD
北大核心
2021年第2期161-167,共7页
Environmental Protection of Chemical Industry
基金
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)。
