Kinetics of nitrobenzene degradation coupled to indigenous microorganism dissimilatory iron reduction stimulated by emulsified vegetable oil
Kinetics of nitrobenzene degradation coupled to indigenous microorganism dissimilatory iron reduction stimulated by emulsified vegetable oil
复制标题
乳化植物油刺激的硝基苯降解与本土微生物异化铁还原耦合的动力学
DOI：
10.1016/j.jes.2016.02.009
复制
发表时间：
2017-04-01
影响因子：
6.9
通讯作者：
Su, Yan
中科院分区：
文献类型：
--
作者：
Dong, Jun;Ding, Linjie;Su, Yan
硝基苯在沉积物和地下水中的广泛污染要求更好地了解污染物的生态地球化学去除过程。NB降解与异化铁还原相结合，是去除污染物最有效的方法之一。然而，NB降解耦合土著微生物异化铁还原电子供体刺激的研究仍然是实验性的。目前还没有一种在实际污染场地进行补救的模式。因此，在本研究中，动力学推导出的Michaelis-Menten模型（当乳化植物油和NB的质量比达到临界值91：1）。研究了SO 42-、NO3-、Ca 2 +/Mg 2+和含水介质粒径对NB降解动力学的影响，并根据影响最显著的因素对NB降解动力学模型进行了修正。利用该模型，可以计算污染场地的修复时间。(C)2016中国科学院生态环境科学研究中心由爱思唯尔公司出版
Widespread contamination by nitrobenzene (NB) in sediments and groundwater requires better understanding of the biogeochemical removal process of the pollutant. NB degradation, coupled with dissimilatory iron reduction, is one of the most efficient pollutant removal methods. However, research on NB degradation coupled to indigenous microorganism dissimilatory iron reduction stimulated by electron donors is still experimental. A model for remediation in an actual polluted site does not currently exist. Therefore, in this study, the dynamics was derived from the Michaelis-Menten model (when the mass ratio of emulsified vegetable oil and NB reached the critical value 91:1). The effect of SO42-, NO3-, Ca2+/Mg2+, and the grain size of aquifer media on the dynamics were studied, and the NB degradation dynamic model was then modified based on the most significant factors. Utilizing the model, the remediation time could be calculated in a contaminated site. (C) 2016 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.