生态与农村环境学报2012，Vol.28Issue(3)：305-309,5.
秸秆生物炭修复电镀厂污染土壤的效果和作用机理初探
Effects and Mechanisms of Straw Biochar on Remediation Contaminated Soil in Electroplating Factory
摘要
Abstract
Soil samples were collected from a heavily contaminated zone in an electroplating plant site for stabilization test using biochar derived from straw. Variation of the heavy metals in amounl and form with the rale of biochar amended into the soil was analyzed. Results show that biochar changed the forms and distribution of heavy metals in the soil and had some significant effect stabilizing the polluted soil, particularly on Cr. With increasing biochar amendment rate, the content of residual form of Cr increased significantly. Especially in the treatment of 100 g ? kg-1 biochar, the content of residual Cr increased by 59.51 mg ? kg-1, as compared with that in CK (1 098. 75 mg ? kg-1 ) , being the largest increment. The effect of stabilizing Cu and Ni was closely related to biochar amendment rate; when biochar was added up to or over 70 and 30 g ? kg-1, its remediation effect on Cu and Ni was quite obvious, but not on Zn in the soil. When biochar amendment rate was 50 g ? kg-1, the total content of the 4 heavy metals ( Cu, Cr, Ni and Zn) in residual form increased up to 1 805. 95 mg ? kg-1, much higher than 1 745 mg ? kg-1 in CK. The biochar amendment rate was quite reasonable.关键词
污染场地/重金属/形态/生物炭/固化/稳定化Key words
contaminated site/ heavy metal/ chemical form/ biochar/ fixation/stabilization分类
资源环境引用本文复制引用
甘文君,何跃,张孝飞,张胜田,林玉锁..秸秆生物炭修复电镀厂污染土壤的效果和作用机理初探[J].生态与农村环境学报,2012,28(3):305-309,5.基金项目
环保公益性行业科技专项(200909075、201109052) （200909075、201109052）
国家高技术研究发展计划(2009AA063103) （2009AA063103）
2009年中央级公益性科研院所基本科研业务专项 （）
