净水技术2016，Vol.35Issue(5)：47-51,5.
含锌废水中的络合剂对处理效果的影响
Influence of Complexing Agents on Treatment Effect of Zinc Containing Wastewater
赵瑶瑶 1龙贝 1袁萌希 1顾天翼 1孙贤波1
作者信息
- 1. 华东理工大学资源与环境工程学院 国家环境保护化工过程环境风险评价与控制重点实验室，上海 200237
- 折叠
摘要
Abstract
To explore the influence of complexing agents in zinc containing electroplating wastewater treatment,experimental and theoretical means were used to describe the effect. The results show that when no complexing agent exists,adjusting pH value of the wastewater can make zinc concentration decrease to electroplating pollutant emission standards 1. 0 mg/ L or less,and it can be achieved when pH value is greater than 8. 5. When tartaric acid appears in wastewater,pH value over 11 can reach the emission standard. When citric acid,or EDTA (elhylene diamine tetraacetic acid)is in wastewater,using hydroxide precipitation method cannot reach the emission standard. Besides,theoretical calculation and mapping analysis find that when the total concentration of tartaric acid,citric acid,or EDTA reach 91. 55,30. 74,4. 38 mg/ L respectively,adjusting pH value cannot make the total zinc concentration lower than the standard emission,which is consistent with the experimental results.关键词
络合剂/含锌废水/处理效果/化学平衡/化学沉淀Key words
complexing agent/zinc containing wastewater/treatment effect/chemical equilibrium/chemical precipitation分类
资源环境引用本文复制引用
赵瑶瑶,龙贝,袁萌希,顾天翼,孙贤波..含锌废水中的络合剂对处理效果的影响[J].净水技术,2016,35(5):47-51,5.
