Modified rice husk hydrochars enhanced surfactant leaching remediation of phenanthrene pyrene contaminated soil

被引：0

作者：

Ma, Jingyi ^{[1
]}

Zhang, Fan ^{[1
]}

Wang, Xi ^{[1
]}

Wang, Xing ^{[1
]}

Jia, Nan ^{[1
]}

Li, Yongkuan ^{[1
]}

Xu, Shihong ^{[1
]}

Li, Dengxin ^{[1
,2
]}

机构：

[1] Donghua Univ, Coll Environm Sci & Engn, Shanghai 201620, Peoples R China

[2] Tongji Univ, Coll Environm Sci & Engn, State Key Lab Pollut Control & Resourcefulness Res, Shanghai, Peoples R China

来源：

ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY | 2023年 / 42卷 / 05期

关键词：

enhanced leaching; hydrochar; phenanthrene; pyrene; surfactants; POLYCYCLIC AROMATIC-HYDROCARBONS; REMOVAL; BIOSURFACTANTS; ADSORPTION; BIOCHAR;

D O I：

10.1002/ep.14162

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The adsorption capacity of soil itself makes it difficult to efficiently remove phenanthrene and pyrene from soil by direct leaching. In this article, hydrochar was introduced into the leaching process after modification, and the enhanced leaching effect of hydrothermal carbon was explored under various influencing factors. The experimental results show that the modified hydrochar competes with the soil for adsorption during the leaching process, promotes the desorption of pollutants and adsorbs some pollutants in the leaching solution, which greatly enhances the leaching effect. The elution of phenanthrene increased from 64.06% to 91.08% and of pyrene from 70.26% to 91.13% under the optimum enhanced drenching conditions. This work provides some new ideas for the removal of PAHs from the natural soil environment.

引用

页数：11

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