Biogeochemical transformations of Fe and Mn in oxic groundwater and well water environments
Biogeochemical transformations of Fe and Mn in oxic groundwater and well water environments
复制标题
含氧地下水和井水环境中铁和锰的生物地球化学转化
DOI：
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发表时间：
1997
期刊：
影响因子：
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通讯作者：
O. Tuovinen
中科院分区：
文献类型：
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作者：
L. Tuhela;L. Carlson;O. Tuovinen
摘要本文综述了地下水中溶解铁（II）和锰（II）在地表条件下的氧化和沉淀。在水井中，这些转变可能最终导致生物污染问题和水质恶化。铁（II）‐氧化产物包括不有序的铁（III）‐氧化物，如铁水合物，随着时间的推移，可能通过溶液转化为铁（III）‐氢氧化物（如针铁矿）。在锰氧化物中，一种典型的氧化产物是氢氧化铁，其结构类似于低有序的水合铁。在中性pH环境中参与铁或锰氧化的细菌包括Gallionella、Sphaerotilus、Leptothrix、Metallogenium、Pedomicrobium spp和趋磁细菌。关于Crenothrix、Clonothrix、Toxothrix和Siderocapsa属的资料很少。本文主要综述了有茎和有鞘细菌Gallionella， Leptothrix和Sphaerotilus。
Abstract This review presents an overview of the oxidation and precipitation of dissolved Fe(II) and Mn(II) in groundwater when exposed to surface conditions. In water wells, these transformations may eventually result in biofouling problems and deterioration of water quality. Fe(II)‐oxidation products include poorly‐ordered Fe(III)‐oxides such as ferrihydrite which may be converted via solution to Fe(III)‐oxyhydroxides (e.g., goethite) with time. Among Mn‐oxides, a typical oxidation product is birnessite which is structurally analogous to poorly‐ordered ferrihydrite. Bacteria implicated in Fe‐ or Mn‐oxidation in neutral‐pH environments include Gallionella, Sphaerotilus, Leptothrix, Metallogenium, Pedomicrobium spp., and magnetotactic bacteria. Very little information is available on the genera Crenothrix, Clonothrix, Toxothrix, and Siderocapsa. This review focuses on the stalked and sheathed bacteria Gallionella, Leptothrix, and Sphaerotilus.