重金属对废水生物硝化过程影响研究进展  

Progress Research on Effects of Heavy Metal on Wastewater Bio-nitrification

作　　者：王文超[1] 杨立中[1] 谭周亮[2] 

机构地区：[1]西南交通大学,四川成都610031 [2]中国科学院成都生物研究所,四川成都610041

出　　处：《环境科学与技术》2013年第S2期157-161,247,共6页Environmental Science & Technology

基　　金：科技部国际科技合作与交流专项项目(2013DFG92600);国家自然科学基金(51208489);国家自然科学基金(41272322)

摘　　要：重金属广泛存在于工业废水中,虽然微量重金属是微生物生长代谢所必需的,但若超过一定浓度,则对微生物具有一定的毒害作用。其中,废水生物处理中硝化细菌对外界环境的变化与有毒冲击尤为敏感。文章从重金属冲击对硝化过程的影响、抑制作用机理以及废水生物处理应对重金属冲击的相关技术与措施3个方面,对相关研究进展进行了综述分析,以期为重金属对污水生物处理的冲击作用机理、应对策略与调控技术的研发提供参考。Heavy metals are widely existed in industrial wastewater. Trace heavy metals are essential for the growth and metabolism of microorganisms, however, they might have toxic effects on microorganisms when they are beyond a certain concentration. Nitrifying bacteria in biological wastewater treatment is especially sensitive to the change of external environment and toxic shock. This paper carries out a synthesized analysis on the relevant research in the following three aspects: the impact of heavy metal on nitrification, inhibition mechanisms, as well as relevant technology and strategies against the impact of heavy metals in wastewater biological treatment, which provides references on heavy metal impact mechanism, strategies and research for development of regulation techniques.

关 键 词：重金属 硝化 抑制机理 调控技术 

分 类 号：X703[环境科学与工程—环境工程]