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Impact of biochar amendment in agricultural soils on the sorption, desorption, and degradation of pesticides: A review

文献类型： 外文期刊

作者： Liu, Yuxue 1 ; Lonappan, Linson 2 ; Brar, Satinder Kaur 2 ; Yang, Shengmao 1 ;

作者机构： 1.Zhejiang Acad Agr Sci, Inst Environm Resource Soil & Fertilizer, Hangzhou 310021, Zhejiang, Peoples R China

2.Univ Quebec, INRS ETE, 490 Rue Couronne, Quebec City, PQ G1K 9A9, Canada

3.Engn Res Ctr Biochar Zhejiang Prov, Hangzhou 310021, Zhejiang, Peoples R China

关键词： Biochar; Pesticide; Contamination; Soil remediation; Bioavailability; Degradation

期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：7.963； 五年影响因子：7.842 ）

ISSN： 0048-9697

年卷期： 2018 年 645 卷

页码：

收录情况： SCI

摘要： Extensive and inefficient use of pesticides over the last several decades resulted in serious soil andwater contamination by imposing severe toxic effects on living organisms. Soil remediation using environment-friendly amendments to counteract the presence of pesticides in soil seems to be one suitable approach to solve this problem. Biochar has emerged as a promising material for adsorbing and thus decreasing the bioavailability of pesticides in polluted soils, due to its high porosity, surface area, pH, abundant functional groups, and highly aromatic structure, mainly depending on the feedstock and pyrolysis temperature. However, biochar effects and mechanisms on the sorption and desorption of pesticides in the soil are poorly understood. Either high or low pyrolysis temperature has both positive and negative effects on sorption of pesticides in soil, one by larger surface area and the other by a large number of functional groups. Therefore, a clear understanding of these effects and mechanisms are necessary to engineer biochar production with desirable properties. This review critically evaluates the role of biochar in sorption, desorption, and degradation of pesticides in the soil, along with dominant properties of biochar including porosity and surface area, pH, surface functional groups, carbon content and aromatic structure, andmineralogical composition. Moreover, an insight into future research directions has been provided by evaluating the bioavailability of pesticide residues in the soil, effect of other contaminants on pesticide removal by biochar in soils, effect of pesticide properties on its behavior in biochar-amended soils, combined effect of biochar and soil microorganismson pesticide degradation, and large-scale application of biochar in agricultural soils for multifunction. (c) 2018 Elsevier B.V. All rights reserved.

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