锰生物氧化的研究进展及在水处理中的应用  

Research Progress of Biogenic Manganese Oxides and Application Potential in Water Treatment Process

作　　者：梁金松[1,2] 柏耀辉 胡承志[1] William Jefferson 曲久辉[1] 

机构地区：[1]中国科学院生态环境研究中心环境水质学国家重点实验室,北京100085 [2]中国科学院大学,北京100049

出　　处：《应用与环境生物学报》2013年第1期11-19,共9页Chinese Journal of Applied and Environmental Biology

基　　金：国家自然科学基金项目(41171377);环境水质学国家重点实验室专项经费(11Y05ESPCR)资助~~

摘　　要：自然界中锰氧化物的形成主要是通过微生物作用,而锰的微生物氧化机制较为复杂,除了多铜氧化酶、过氧化物酶外,最近发现微生物生成的超氧化物可能也参与了锰的氧化.微生物生成的生物锰氧化物具有较高的吸附氧化活性,其微观结构和活性会随时间快速变化.比如,锰的生物氧化初级产物具有强的诱导Mn(Ⅱ)氧化的活性,而次级产物则几乎没有.锰的生物氧化过程复杂而又广泛进行着,尤其在含锰水体的处理单元中发挥着重要的净水作用,为了深刻理解生物锰氧化物,对锰氧化细菌和真菌、锰生物氧化机理、生物锰氧化物的吸附氧化特征及潜在的工程应用等当前研究热点问题进行了综述.On a global scale manganese oxides found in the natural environment are primarily produced by microorganisms.While the mechanisms controlling formation are relatively complex, in addition to enzymes such as MCOs （multicopper oxidases） and peroxidase, and superoxide produced by microorganisms newly found may also take part in this process. Biogenic manganese oxides are of high sorption and oxidation activity, and their crystal structures and activity evolve rapidly. For example, primary biogenic Mn oxides can induce the rapid oxidation of Mn（II）, while the secondary Mn oxides can hardly. Mn oxidation by microorganisms is complex and also occur broadly, especially in the water-purification units which treat water containing Mn（II）, so manganese-oxidizing bacteria and fungi, mechanisms ofrnanganese oxidation, adsorption and oxidation capacity, and potential application in water treatment processes are reviewed herein to better＇understand bio^enie rnanonn,~ nvirl,~ 1~＇;. 2 0~~ lt~

关 键 词：生物锰氧化物 锰氧化微生物 氧化 吸附 水处理 应用 

分 类 号：TU991.2[建筑科学—市政工程]