含铜黄连素废水的铁碳微电解预处理及铜回收研究  

Study on the Pretreatment and Copper Recovery from Berberine Wastewater Containing Copper by Fe-C Micro-electrolysis

作　　者：肖宏康[1,2] 肖书虎[1] 宋永会[1] 曾萍[1] 邵红[2] 张国芳[1,2] 李辉[2] 

机构地区：[1]中国环境科学研究院城市水环境研究室,北京100012 [2]沈阳化工大学环境与生物工程学院,辽宁沈阳110142

出　　处：《环境工程技术学报》2011年第1期15-19,共5页Journal of Environmental Engineering Technology

基　　金：国家水体污染控制与治理科技重大专项(2008ZX07208-003);中国博士后科学基金项目(20100470399);中国环境科学研究院中央级公益科研院所基本科研业务专项资助项目(2010KYYW15)

摘　　要：利用铁碳微电解技术对含铜黄连素制药废水进行预处理,通过单因素试验确定了反应时间,铁粉和废碳投加量,pH等因素对处理效果的影响,并设计了回收金属铜的工艺流程。结果表明:采用铁碳微电解工艺处理初始Cu2+浓度约为20000mg/L,黄连素浓度为1700～1900mg/L的含铜黄连素制药废水,当废水pH为2.0～3.0,铁粉和废碳投加量分别为25和30g/L,反应90min后,黄连素的去除率达70%以上,Cu2+的去除率高达99.9%以上,出水中Cu2+浓度低于20mg/L,处理每t水可回收18～19kg铜,可实现金属铜的循环利用。Fe-C micro-electrolysis was applied to perform pretreatment of berberine pharmaceutical wastewater containing high concentration of Cu2＋. The effects of reaction time, iron/carbon dosages and initial pH on the pretreatment results were investigated by single factor experiments, and the process of copper recovery was designed. The results showed that while treating the wastewater with initial concentration of Cu2＋ 20 000 mg/L and berberine content of 1 700-1 900 mg/L, the berberine removal efficiency was above 70% and copper removal efficiency reached 99.9% with less than 20 mg/L Cu2＋ remaining in the effluent and 18-19 kilograms of copper could be recovered by treatment one ton of such wastewater, under the optimized conditions of pH 2.0-3.0, reaction time 90min and the dosages of iron and carbon 25 and 30 g/L, respectively. The process was easily controlled and effective. It has laid foundation for larger scale treatment of berberine wastewater containing high concentration of Cu2＋.

关 键 词：铁碳微电解 含铜废水 黄连素 预处理 

分 类 号：X787[环境科学与工程—环境工程]