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PCB生产废水处理工程实例

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针对太湖流域某大型PCB生产企业排放的综合有机废水含有胺类、有机盐类、有机溶剂等特征污染物,采用了水解酸化-缺氧反硝化-好氧生化-辐流式沉淀池的组合工艺进行处理.经过调试投产运营后,在进水COD、氨氮、TN质量浓度分别为1 200～1 800、110～140、130～170 mg/L时,出水质量浓度分别为30～45、3.0～5.0、11～14 mg/L,出水TP质量浓度稳定在0.5 mg/L以下,相应去除率分别为97.5％、97.1％、91.7％、99％,出水水质稳定达到GB 18918-2002《城镇污水处理厂污染物排放标准》中的一级A标准.工程总投资3 300万元,运维成本约为1.34元/t.
A project example of PCB production wastewater treatment
As the wastewater discharged from a large-scale PCB production enterprise contains amine,or-ganic salt,organic solvent and some other specific pollutants,a combined process of hydrolytic acidification-anoxic denitrification-aerobic biochemistry-radial flow sedimentation tank was adopted for its treatment.After being debugged and put into operation,when the mass concentrations of COD,ammonia nitrogen,and TN in the influent water were 1 200-1 800,110-140,130-170 mg/L respectively,the mass concentrations of those pollutants in the effluent water were 30-45,3.0-5.0,11-14 mg/L respectively,the mass concentration of TP was below 0.5 mg/L and maintained stable,the removal rates of COD,ammonia nitrogen,TN and TP were 97.5％,97.1％,91.7％and 99％respectively,the effluent water quality stably met the requirement of level A grade 1 in GB 18918-2002 Discharge standard of pollutants for municipal wastewater treatment plant.The whole invest-ment of the project was 33 million yuan,and the operation and maintenance cost was about 1.34 yuan/t.

printed circuit board wastewatercomprehensive organic wastewaterhydrolytic acidificationheterotrophic denitrificationaerobic treatmentcoagulationradial flow sedimentation tank

徐云龙、李向东

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贵州理工学院食品药品制造工程学院,贵阳 550000

苏州中晟环境修复有限公司,江苏 苏州 215000

印制电路板废水 综合有机废水 水解酸化 异养反硝化 好氧处理 混凝 辐流式沉淀池

苏州市水利水务科技项目

2019006

2024

工业用水与废水
东化工程科技股份有限公司

工业用水与废水

CSTPCD
影响因子：0.649
ISSN：1009-2455
年,卷(期)：2024.55(4)
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