李森,张杨,罗勇,商照聪,徐静安.基于均匀设计的类Fenton's体系去除污染土壤中蒽和芘的研究[J].环境科学学报,2015,35(4):1157-1163
基于均匀设计的类Fenton's体系去除污染土壤中蒽和芘的研究
- Application of uniform design method in removal of anthracene and pyrene in contaminated soil by using Fenton-like system
- 基金项目：上海化工研究院院立项目(No.N-2014jszx-01)
- 摘要：分别以乳酸、L-酒石酸、柠檬酸为助剂,将其添加至类Fenton's体系中去除污染土壤中的蒽和芘等多环芳烃.结果发现,以柠檬酸为助剂时,多环芳烃的去除率为83.75%.同时,以均匀实验设计法考察了H2O2用量、FeSO4用量、反应温度、反应时间、水土比、柠檬酸用量和多环芳烃染毒浓度对多环芳烃去除率的影响.实验数据和结果经DPS(Data Processing Station)软件处理后得到多环芳烃去除率与各反应因素之间的回归方程,经随机验证实验和计算结果对比表明,该回归方程的拟合误差低于5%,具有精确的预报性.
- Abstract：Polycyclic aromatic hydrocarbon (PAHs) such as anthracene and pyrene in contaminated soil were removed under Fenton-like system. Lactic acid, tartaric acid or citric acid was used as the additive in Fenton-like system, respectively. The highest removal yield of 83.75% of PAHs was obtained with citric acid as additive. Uniform design experiment was carried out to investigate the effect of reaction factors on the removal yield of PAHs. Dosages of H2O2, FeSO4 and additive, reaction temperature, reaction time, ratio of water to soil, and concentration of PAHs were selected as the main reaction factors. A regression equation between the removal yield of PAHs and reaction factors was established by using Data Processing Station software. The testified results show that the error of regression equation was less than 5%, and met the accuracy required in this study.
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