title: Using biochar for remediation of soils contaminated with heavy metals and organic pollutants.
abstract: Soil contamination with heavy metals and organic pollutants has increasingly become a serious global environmental 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 stabilization of heavy metals. Application of biochar for remediation of contaminated soils may provide a new solution to the soil pollution problem. This paper provides an overview on the impact of biochar on the environmental fate and mobility of heavy metals and organic pollutants in contaminated soils and its implication for remediation of contaminated soils. Further research directions are identified to ensure a safe and sustainable use of biochar as a soil amendment for remediation of contaminated soils.
authors.affiliation: Zhejiang Provincial Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration, Zhejiang A & F University, Lin'an, Hangzhou, Zhejiang, 311300, China.
authors.forename: Xiaokai
authors.initials: X
authors.lastname: Zhang
authors.forename: Hailong
authors.initials: H
authors.lastname: Wang
authors.forename: Lizhi
authors.initials: L
authors.lastname: He
authors.forename: Kouping
authors.initials: K
authors.lastname: Lu
authors.forename: Ajit
authors.initials: A
authors.lastname: Sarmah
authors.forename: Jianwu
authors.initials: J
authors.lastname: Li
authors.forename: Nanthi S
authors.initials: NS
authors.lastname: Bolan
authors.forename: Jianchuan
authors.initials: J
authors.lastname: Pei
authors.forename: Huagang
authors.initials: H
authors.lastname: Huang
mesh_terms: D000327:Adsorption; D002606:Charcoal / Q000737:chemistry*; D052918:Environmental Restoration and Remediation / Q000379:methods*; D019216:Metals, Heavy / Q000032:analysis*; D009930:Organic Chemicals / Q000737:chemistry*; D012987:Soil / Q000737:chemistry*; D012989:Soil Pollutants / Q000032:analysis / Q000737:chemistry*
chemical_list: D019216:Metals, Heavy; D009930:Organic Chemicals; D012987:Soil; D012989:Soil Pollutants; C540010:biochar; D002606:Charcoal