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bce ›› 2017, Vol. 51 ›› Issue (4): 66-74.doi: 10.3969/j.issn.1673-5854.2017.04.010

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Prospects for the Utilization of Biochar on Remediating Soils Polluted by Heavy Metal

SUN Kang1, MIAO Cunbiao2, HE Yue3   

  1. 1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab. for Biomass Chemical Utilization;Key and Open Lab. of Forest Chemical Engineering, SFA;Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China;
    2. Fujian Yuanli Active Carbon Co., Ltd., Nanping 353000, China;
    3. Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection;State Environmental Key Laboratory on Biosafety, Nanjing 210042, China
  • Received:2017-04-06 Online:2017-07-30 Published:2017-08-03

Abstract: The role of biomass charcoal porous,surface activity,selective adsorption and high based properties in the effective control of heavy metal biological migration was given in order to provide reference for heavy metal contaminated soil remediation technology. The general situation of heavy metal contaminated soil in China was introduced and the application of biomass carbon in heavy metal contaminated soil remediation was reviewed. The effects of phytoremediation,chemical leaching,soil performance improvement,curing/stabilization,thermal desorption repair and electrokinetic repair were highlighted. The effects of raw material types,pyrolysis temperature and surface functional groups on biomass carbon and biomass carbon on soil environment were briefly introduced. The future of biomass charcoal application in heavy metal contaminated soil remediation was prospected.

Key words: biochar, heavy metal, polluted soils, remediation

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