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张学庆,刘 璐,孟素花. 铁锰结核与石油相互作用的环境行为机制[J]. 科学技术与工程, 2020, 20(24): 10097-10102.
ZHANG Xue-qing,Liu Lu,孟素花.The Environmental behavior mechanism of between Fe-Mn nodules and THP[J].Science Technology and Engineering,2020,20(24):10097-10102.
铁锰结核与石油相互作用的环境行为机制
The Environmental behavior mechanism of between Fe-Mn nodules and THP
投稿时间:2020-02-12  修订日期:2020-06-04
DOI:
中文关键词:  铁锰结核  石油烃  微生物  厌氧环境
英文关键词:Fe-Mn nodules  petroleum hydrocarbon  microorganism,aerobic environment
基金项目:
        
作者单位
张学庆 中国地质科学院水文地质环境地质研究所
刘 璐 河北省地质环境监测院
河北省地质环境监测院
孟素花 中国地质科学院水文地质环境地质研究所
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中文摘要:
      为揭示铁锰结核与石油污染物相互作用的环境行为机制,通过条件实验,综合考虑氧化还原环境、有机物、微生物等因素对反应的影响,研究了反应过程中各指标变化趋势,揭示了二者相互作用的主控因子。 结果表明:铁锰结核与与石油类污染物在还原环境下,通过微生物相互作用,总石油烃被有效分解,铁锰结核被溶蚀;石油烃类总浓度由1274mg/L降至405mg/L,铁锰结核除析出大量Fe2+(78mg/L)、Mn2+( 6.1mg/L)外,还析出部分重金属元素;经GC-MS分析石油烃类主要是大分子有机物被分解,小分子直链烷烃及代谢中间产物残留,具有较强的迁移性。由此可见在还原环境中的微生物作用下,铁锰结核与石油污染物相互作用,释放大量重金属离子与小分子有机物等副产物,可能对土壤与地下水造成次生污染。
英文摘要:
      In order to reveal the environment behavior mechanism between Fe-Mn nodules and oil pollutants, the reaction process and each index change trend were researched, which revealed the main control factor of the interaction by the experiment conditions. Experimental results showed that the petroleum hydrocarbon was decomposed effectively and the Fe-Mn nodules were dissolved by microbial interaction in the reductive environment. The TPH decreased from 1274mg/L to 405mg/L. In addition to dissolve out large amounts of Fe2+(78mg/L) and Mn2+(6.1mg/L), Fe-Mn nodules also dissolved out some heavy metal elements. Through gc-ms analysis, the macromolecular organic compounds of TPH were mainly decomposed, but the small-molecule straight-chain alkanes and metabolic intermediates were Sretained, which was easy to transfer in the environment. The experiment results show that the main controlling factor to reactions is microbialSaction, the released heavy metal ions and small molecule organic compounds and other byproducts may cause secondary pollution to soil and groundwater..
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