重金属抗性菌及其去除CMP废水中Cu2+的研究进展  

Research progress on heavy metal resistant bacteria and their removal of Cu2+from CMP wastewater

作　　者：王小雨[1] 黄小霞 高磊 WANG Xiaoyu;HUANG Xiaoxia;GAO Lei(School of Environment,Northeast Normal University,Changchun 130017,China)

机构地区：[1]东北师范大学环境学院,吉林长春130017

出　　处：《工业水处理》2023年第3期31-38,共8页Industrial Water Treatment

基　　金：国家自然科学基金面上项目(52070037);首批吉林省专业学位研究生教学案例立项建设项目;东北师范大学研究生院经费2022年重点资助项目。

摘　　要：环境中重金属主要来源于工业废水的排放,如何经济有效地去除工业废水中的重金属是水处理领域的难点。重金属抗性菌比通常微生物具有更高的重金属抵抗能力,可以在重金属胁迫的情况下生长,这为重金属废水的微生物处理提供了新的思路。但是,目前人们对重金属抗性微生物的特性和应用仍然知之甚少。基于此,综述了重金属抗性菌的发现过程及其分离状况,对重金属抗性菌抗性能力的评价方法进行了介绍,着重分析了重金属抗性菌抗性机制中可作为去除重金属离子理论基础的胞外吸附与胞内累积机制,并以集成电路板生产关键工艺,即化学机械研磨(CMP)过程产生的低浓度含铜废水为处理对象,总结了重金属抗性菌对铜离子的去除原理及其在CMP废水处理中的应用,最后对今后的研究方向进行了展望,以期为应用重金属抗性菌生物膜处理含铜废水的研究提供参考。Heavy metals from industrial effluent are the main resource of environmental heavy metal contamination.How to effectively remove heavy metal ions in industrial effluent is the difficulty of wastewater treatment.Heavy metal resistant bacteria have higher resistance to heavy metals than the common microorganisms and can grow under heavy metal stress,which provides a new approach for the microbial treatment of heavy metal wastewater.However,the knowledge about the characteristics and applications of heavy metal resistant bacteria remain unclear.Based on these,the discovery and separation process of heavy metal resistant bacteria was summarized,and the evaluation methods for the resistance of heavy metal resistant bacteria were introduced.The extracellular adsorption and intracellular accumulation mechanisms that could be used as the theoretical basis for removing heavy metal ions in the resistance mechanism of heavy metal resistant bacteria were emphatically analyzed.Then take the low concentration copper-containing wastewater produced in the chemical mechanical planarization/polishing(CMP)process in the key process of integrated circuit board production as the treatment object,the removal principle of copper ions by heavy metal resistant bacteria and its application in CMP wastewater treatment were summarized.Finally,the future research direction was prospected.It hopes to provide a reference for the application of heavy metal resistant bacteria biofilm in the treatment of copper containing wastewater.

关 键 词：重金属抗性菌 微生物 生物吸附 生物累积 含铜废水 

分 类 号：X703[环境科学与工程—环境工程]