摘要
基于H锌业冶炼厂铅锌废水处理项目,对铅锌冶炼废水污酸处理技术进行了研究,提出了电化学法、生物制剂+电絮凝法、二段中和-铁盐法-微滤-钠滤-工业反渗透法三种废水处理技术方案。经过分析,选择方案三进行污酸处理。H锌业冶炼厂通过污水循环利用工程实现废水的循环利用和二次利用,并有效回收各种有色金属,达到节水目的。项目实施后,废水回用率高于95.5%,外排废水减少103.8×10^(4)m^(3)/a,解决了H锌业冶炼厂的水环境问题,减少了污染物排放。实施铅锌废水处理项目后,每年减少废水环保税约11.5万元。
Based on the lead-zinc wastewater treatment project of H Zinc Smelter,research has been conducted on the acid treatment technology of lead-zinc smelting wastewater.Three wastewater treatment technology schemes have been proposed:electrochemical method,biological agent+electrocoagulation method,two-stage neutralization-iron salt method-microfiltration-sodium filtration-industrial reverse osmosis method.After analysis,scheme 3 was selected for acid treatment.The H Zinc Smelter achieves the recycling and secondary utilization of wastewater through sewage recycling engineering,and effectively recovers various non-ferrous metals to achieve water-saving goals.After the implementation of the project,the wastewater reuse rate is higher than 95.5%,and the discharged wastewater is reduced by 103.8%×104 m^(3)/a,solving the water environment problem of H Zinc Smelter and reducing pollutant emissions.After implementing the lead zinc wastewater treatment project,the annual reduction in wastewater environmental protection tax is about 115000 yuan.
作者
程伟
Cheng Wei(Shenzhen Qirun Environmental Protection and Energy Conservation Technology Co.,Ltd.,Shenzhen Guangdong 518000,China)
出处
《山西冶金》
CAS
2023年第11期150-153,156,共5页
Shanxi Metallurgy
关键词
冶炼废水
有色金属
防治
污酸处理
smelting wastewater
non ferrous metals
prevention and control
waste acid treatment
