标题: Evaluation of phenanthrene removal from soil washing effluent by activated carbon adsorption using response surface methodology

作者: Wang, ZN (Wang, Zenan); Zheng, X (Zheng, Xin); Wang, Y (Wang, Yan); Lin, H (Lin, Heng); Zhang, H (Zhang, Hui)

来源出版物: CHINESE JOURNAL OF CHEMICAL ENGINEERING卷: 42页: 399-405 DOI: 10.1016/j.cjche.2021.02.027出版年: FEB 2022

摘要: Soil washing is a promising technology for the remediation of polycyclic aromatic hydrocarbons (PAH)contaminated sites, but surfactant needs to be recovered to reduce remediation cost and avoid secondary pollution. In this study, activated carbon (AC), prepared from waste walnut shells, was applied to the adsorptive removal of phenanthrene (PHE) from synthetic soil washing effluent with Tween 80 as a model surfactant. Box-Behnken statistical experiment design (BBD) and response surface methodology (RSM) were used to investigate the influence of AC dosage, Tween 80 concentration and adsorption time, and their potential interaction effect on PHE removal. A response surface model was established based on the BBD experimental results. The goodness of fit of the model was confirmed by determination coefficient, coefficient of variation (CV) and residuals analysis. The RSM model indicates that AC dosage or adsorption time had positive effect on PHE removal while Tween 80 concentration had negative effect. The interaction effect between AC dosage and Tween 80 concentration was significant but the other two interaction effects were not. The 3D response surface plots were developed based on the RSM equation. The RSM model was validated by an additional experiment and the obtained result of PHE removal was very close to the model prediction, indicating the RSM model can effectively predict the PHE removal from soil washing effluent with activated carbon adsorption. (c) 2021 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights reserved.

入藏号: WOS:000777376400001

语言: English

文献类型: Article

作者关键词: Activated carbon; Adsorption; Phenanthrene; Response surface methodology; Tween 80

地址: [Wang, Zenan; Zheng, Xin; Wang, Yan; Lin, Heng; Zhang, Hui] Wuhan Univ, Sch Resource & Environm Sci, Dept Environm Sci & Engn, Hubei Biomass Resource Chem & Environm Biotechnol, Wuhan 430079, Peoples R China.

[Wang, Yan] Anhui Sci & Technol Univ, Dept Environm Sci & Engn, Fengyang 233100, Peoples R China.

通讯作者地址: Lin, H; Zhang, H (通讯作者)，Wuhan Univ, Sch Resource & Environm Sci, Dept Environm Sci & Engn, Hubei Biomass Resource Chem & Environm Biotechnol, Wuhan 430079, Peoples R China.

电子邮件地址: lheng2015@whu.edu.cn;eeng@whu.edu.cn

影响因子：3.171