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Organochlorine compounds and the biogeochemical cycle of chlorine in soils: A review

机译:有机氯化合物和土壤中氯的生物地球化学循环:综述

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Chloride ions in soil may interact with soil organic matter and form organochlorine compounds in situ. The biotic chlorination of soil organic substances takes places under aerobic conditions with participation of H2O2 forming from peroxidases released by soil microorganisms (in particular, by microscopic fungi). The abiotic chlorination results also from the redox reactions with the participation of Fe3+/Fe2+ system, but it develops several times slower. Chlorination of soil organic substances is favored by Cl- coming to soil both from natural (salinized soil-forming rocks and groundwater, sea salt) and anthropogenic sources of chlorides, i.e., spills of saline water at oil production, road deicing chemicals, mineral fertilizers, etc. The study of the biogeochemical chlorine cycle should take into account the presence of organochlorine compounds in soils, in addition to transformation and migration of chloride ions.
机译:土壤中的氯离子可以与土壤有机物质相互作用并形成有机氯化合物。 土壤有机物质的生物氯化在有氧条件下,在土壤微生物(特别是通过微观真菌)释放的过氧化物酶的参与下的优势条件下。 非生物氯化结果也来自氧化还原反应与Fe3 + / Fe2 +系统的参与,但它发展多次较慢。 土壤有机物质的氯化是通过来自天然(盐渍化土壤成型岩石和地下水,海盐)和人为氯化物来源的土壤来青睐,即石油生产的盐水溢出,道路除冰化学品,矿物肥料 等等,生物地缘氯循环的研究应考虑到氯离子的转化和迁移外,还考虑了土壤中有机氯化合物的存在。

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