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连续提取法对电镀废水污染土壤重金属形态研究
引用本文:钟雪梅,刘杰,朱义年,宋波,梁延鹏.连续提取法对电镀废水污染土壤重金属形态研究[J].广西科学院学报,2006,22(2):67-69.
作者姓名:钟雪梅  刘杰  朱义年  宋波  梁延鹏
作者单位:桂林工学院资源与环境工程系,广西,桂林,541004
基金项目:广西青年科学基金 , 广西自然科学基金 , 广西教育厅科研项目
摘    要:采用五级化学连续提取法测定电镀废水污染的土壤中Cu、Cr、Ni、Pb及Mn等重金属的五种形态(可交换态,碳酸盐结合态,Fe-Mn氧化物结合态,有机结合态,残留态),分析金属元素和土壤固相组分的结合形态.结果显示,电镀废水污染的土壤中Cu、Cr和Mn的有效态含量较高,而Ni和Pb则主要以残留态为主;在有效态中,Cu、Cr和Ni主要以有机结合态存在,分别占有效态含量的54.1%,73.5%和39.1%,而Mn和Pb则以可交换态含量最高,分别占有效态含量的38.9%和39.6%;大部分Cr来源于电镀废水污染;电镀废水污染的土壤中Mn对植物的影响最为直接.

关 键 词:土壤  重金属形态  电镀废水  连续提取
文章编号:1002-7378(2006)02-0067-03
收稿时间:2005-10-28
修稿时间:2005-12-09

Morphology of Heavy Metals in Soil Contaminated by Electroplating Wastewater
ZHONG Xue-mei,LIU Jie,ZHU Yi-nian,SONG Bo and LIANG Yan-peng.Morphology of Heavy Metals in Soil Contaminated by Electroplating Wastewater[J].Journal of Guangxi Academy of Sciences,2006,22(2):67-69.
Authors:ZHONG Xue-mei  LIU Jie  ZHU Yi-nian  SONG Bo and LIANG Yan-peng
Institution:Department of Resource and Environmental Engineering, Guilin University of Technology, Guilin,Guangxi, 541004, China
Abstract:Five-stage sequential chemical extraction procedure was used to determine the heavy metal morphology (exchangeable morphology,carbonate morphology,iron-manganese oxides,organic matter morphology and residue morphology of Cu,Cr,Ni,Pb and Mn) in soil contaminated by electroplating wastewater.It showed that effective morphology contents of Cu,Cr and Mn was at a rather high level,while most of Ni and Pb was found in the residue morphology.The Cu,Cr and Ni mainly was found in organic matter in 54.1%,73.5% and 39.1% respectively.As to Mn and Pb was found in exchangeable morphology in 38.9% and 39.6% respectively.Most of Cr Comes from contamination of the electroplating wastewater.Mn has a most directly effect at plant at the soil contaminated by the eletroplating wastewater.
Keywords:soil  heavy metal morphology  electroplating wasterwater  sequential extraction
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