PCB生产废水处理工程实例
A project example of PCB production wastewater treatment
徐云龙 1李向东2
作者信息
- 1. 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
- 2. 贵州理工学院食品药品制造工程学院,贵阳 550000
- 折叠
摘要
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.
Abstract
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.
关键词
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Key words
printed circuit board wastewater/comprehensive organic wastewater/hydrolytic acidification/heterotrophic denitrification/aerobic treatment/coagulation/radial flow sedimentation tank引用本文复制引用
出版年
2024
NETL
NSTL
万方数据