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Using biochar for remediation of soils contaminated with heavy metals and organic pollutants

机译：使用生物炭修复被重金属和有机污染物污染的土壤

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Soil contamination with heavy metals and organ ic pollutants has increasingly become a serious global envi ronmental issue in recent years. Considerable efforts have been made to remediate contaminated soils. Biochar has a large surface area, and high capacity to adsorb heavy metals and organic pollutants. Biochar can potentially be used to reduce the bioavailability and leachability of heavy metals and organic pollutants in soils through adsorption and other physicochemical reactions. Biochar is typically an alkaline material which can increase soil pH and contribute to stabi lization of heavy metals. Application of biochar for remedi ation of contaminated soils may provide a new solution to the soil pollution problem. This paper provides an overviewon the impact of biochar on the environmental fate and mobility of heavy metals and organic pollutants in contam inated soils and its implication for remediation of contami nated soils. Further research directions are identified to ensure a safe and sustainable use of biochar as a soil amend ment for remediation of contaminated soils.
机译：近年来，土壤中重金属和有机污染物的污染已日益成为严重的全球环境问题。在修复受污染的土壤方面已经做出了相当大的努力。生物炭表面积大，吸附重金属和有机污染物的能力强。生物炭可潜在地用于通过吸附和其他物理化学反应来降低土壤中重金属和有机污染物的生物利用度和浸出率。生物炭通常是碱性物质，可以增加土壤的pH值并有助于稳定重金属。应用生物炭修复污染土壤可能为土壤污染问题提供新的解决方案。本文概述了生物炭对污染土壤中环境命运以及重金属和有机污染物迁移的影响及其对污染土壤的修复作用。确定了进一步的研究方向，以确保安全可靠地使用生物炭作为土壤修复剂，以修复受污染的土壤。

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