某有色金属企业高含铁多金属酸性废水处理试验研究  

作　　者：骆玉梅 农泽喜 何娜 覃朝科 

机构地区：[1]中科鼎实环境工程有限公司,广州511400 [2]中国有色桂林矿产地质研究院有限公司,广西桂林541004 [3]广西环境污染控制理论与技术重点实验室,广西桂林541004

出　　处：《科技创新与应用》2024年第7期59-63,共5页Technology Innovation and Application

基　　金：广西重点研发计划项目(桂科AB18281013);广西科技重大专项(桂科AA17204047-1)。

摘　　要：采用石灰石除铁——硫化回收锌的工艺对某有色金属企业产生的高铁高锌酸性废水进行处理研究。探讨石灰石粒度、用量、处理时间、硫化钠投加量和反应时间等对去除水中重金属的影响。试验结果表明,石灰石除铁——硫化回收锌工艺对于高铁高锌多金属酸性废水有较好的处理效果,回收的产品的锌含量达到45%,可作为锌冶炼用原料出售,实现锌的资源回收,同时处理后的尾水符合国家排放标准GB 25466—2010《铅、锌工业污染物排放标准》。The process of limestone iron removal-sulfurization and zinc recovery was used to treat the acid wastewater with high iron and zinc produced by a non-ferrous metal enterprise.The effects of limestone particle size,dosage,treatment time,sodium sulfide dosage and reaction time on the removal of heavy metals from water were discussed.The test results show that the limestone iron removal-vulcanization and zinc recovery process has a better treatment effect on high-iron and high-zinc polymetallic acid wastewater,and the zinc content of the recovered product is up to 45%,which can be sold as raw materials for zinc smelting,realizing the recovery of zinc resources.At the same time,the treated tail water conforms to the nationally recognized "Lead and Zinc Industry Pollutant Discharge Standard"(GB 25466—2010).

关 键 词：重金属 高铁高锌酸性废水 硫化 资源回收 试验研究 

分 类 号：X753[环境科学与工程—环境工程]