重金属离子Fe3+和Mn2+对废水生物处理效果影响的研究进展

Research progress of the effect of heavy metal ions(Fe3+ & Mn2+) on biological treatment of wastewater

生物处理法是目前废水处理环节主要的工艺技术之一,由于废水来源的差异,制造业及化工业重金属废水的净化处理长期以来备受各界关注,但部分地区水产养殖用水重金属离子超标问题未获得足够重视。我国部分工厂化水产养殖区地下水源铁锰离子超标现象突出,在封闭循环水养殖系统中,生物净化处理过程至关重要,而铁锰等重金属离子对生物滤器成熟及运行过程中的影响研究并不充分。本文介绍了废水中铁锰等重金属离子的来源及危害,重点梳理铁锰离子对废水生物处理效果的影响及其作用机制,以期为科学解决铁锰重金属离子对工厂化循环水产养殖系统中生物滤器的影响提供理论参考。

Due to the difference source of wastewater,heavy metals in wastewater from the manufacturing and chemical industries has attracted more attention from the society,but the problem of excessive heavy metal ions in aquaculture water has been ignored. In some industrialized aquaculture areas in China,the groundwater source’s iron and manganese ions exceed the standard seriously. In a closed circulating aquaculture system,the biological purification process is very important,whiel the study on effects of heavy metal ions such as iron and manganese on the maturation and operation of the biofilter is insufficient. This article intends to query the sources and hazards of iron and manganese in waste water,and focus on sorting out the effects of iron and manganese ions on the biological treatment and their related mechanisms,in order to provide theoretical reference for mitigating impacts of iron and manganese iron on biofilters in industrial circulating aquaculture systems.