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首页> 外文期刊>American Journal of Civil and Environmental Engineering >Modeling the Bioremediation of Diesel Contaminated Soil by Bacteria from Clogged Drainage System
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Modeling the Bioremediation of Diesel Contaminated Soil by Bacteria from Clogged Drainage System

机译：堵塞排水系统细菌建模柴油污染土壤的生物修复

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The contamination of soil with petroleum products is a major environmental issue. The widespread application of diesel in human activities makes it one of the most hazardous petroleum products. Among the available remediation methods, bioremediation has become the main choice for petroleum products contaminated site recovery due to its cost-effectiveness and environmental-friendliness. In this study, the bioremediation of diesel contaminated soil by bacteria from clogged drainage was examined and modeled. Soil samples were contaminated with diesel and inoculated with cultured bacteria isolated from clogged drainage systems for 56 days. Experimental results indicated that Pseudomonas, Micrococcus, Acinetobacter, Bacillus cereus and Providencia species actively participated in the bioremediation process. The percentage reduction of diesel was statistically highly signi?cant (pPseudomonas (92.39%) > Acinetobacter (88.29%) > Bacillus cereus (88.11%) > Micrococcus (86.91%) > Providencia (29.64%). The biodegradation data complied with first-order kinetic model. Thus, first-order kinetic models of the biodegradation of diesel in soil for the five active bacteria were developed. The models were used to fit the biodegradation of diesel in soil with correlation coefficient (R2) range of 0.8142 – 0.9599 and p-value range of 0.2879 – 0.8211 (p>0.05), indicating good agreement between the measured and predicted biodegradation of diesel in soil. Therefore, it is concluded that the developed models can adequately predict the biodegradation of diesel in soil with time by the respective bacteria.
机译：用石油产品污染土壤是一个重大的环境问题。柴油在人类活动中的广泛应用使其成为最具危险的石油产品之一。在可用的修复方法中，由于其成本效益和环境友好，生物修复已成为石油产品受污染部位恢复的主要选择。在这项研究中，研究了来自堵塞引流的细菌的柴油受污染土壤的生物修复并进行了建模。土壤样品被柴油污染，接种从堵塞的排水系统中分离的培养细菌56天。实验结果表明，假单胞菌，微焦，癌症，芽孢杆菌和普罗维西西亚物种积极参与生物修复过程。柴油的百分比减少在统计学上高分症？不能（ppseudomonas（92.39％）>杆菌（88.29％）>芽孢杆菌（88.11％）> micrococcus（86.91％）>普罗维森景罪（29.64％）。生物降解数据符合第一 - 顺序动力模型。因此，开发了五个活性细菌的土壤中柴油生物降解的一阶动力学模型。使用相关系数（R2）0.8142 - 0.9599和0.9599和0.9599和0.9599的柴油在土壤中的生物降解P值范围为0.2879 - 0.8211（P> 0.05），表明在土壤中测量和预测的柴油生物降解之间的良好一致性。因此，发达的模型可以充分预测柴油在土壤中的生物降解在土地上随着时间的推移各种细菌。

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