某铅蓄电池厂表土不同粒径中铅分布规律研究  

Distribution Characteristics of Lead in Different Particle Size Fractions of Surface Soil of a Lead-acid Battery Factory Contaminated Site

作　　者：岳希[1,2] 孙体昌[1] 黄锦楼[2] 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083 [2]中国科学院生态环境研究中心城市与区域生态国家重点实验室,北京100085

出　　处：《环境科学》2013年第9期3679-3683,共5页Environmental Science

摘　　要：以西南地区某铅蓄电池污染场地土壤为研究对象,对5个表层土壤(0～20 cm)7个粒径(极粗砂粒、粗砂粒、中砂粒、细沙粒、极细砂粒、粉粒和黏粒)中铅含量进行了分析测定,并研究了其与有机质的相关关系.结果表明,5个土壤样品受到了不同程度的铅污染,各粒径铅含量的变化呈现出两种变化趋势,污水处理车间排污口、生产车间A及生产车间B这3个样品铅含量随粒径的减小先降低后升高;包装车间及原生产车间A样品铅含量随粒径的减小而降低.铅含量随各粒径组分中有机质的含量的升高而增大,其相关系数为0.823 2.实验结果表明研究场地中,土壤有机质随着粒径的减小对铅富集的能力有所降低.土壤质地是影响铅含量分布、有机质含量以及之间关系的重要因素.In this research,six topsoil samples（0-20 cm） were collected in the heavy-metal lead contaminated soil of one lead battery factory in South-west China as research object,which were later divided into seven particle size fractions,and analyzed for the lead concentration as well as the correlation between the lead concentration and the organic matter content.The result showed that five soil samples were contaminated with lead with different pollution levels,and there were two different trends in the changes of lead concentration as of the change of soil particle size.The lead concentration of the three samples from sewage treatment workshop,the workshop A and the workshop B,showed a first declining and then ascending trend with the decreasing particle size.The lead concentration of the soil samples of the packing workshop and the former production workshop A showed a decreasing trend when the particle size decreased.The lead concentration and the organic matter content showed a positive linear correlation（R2 = 0.823 2）.Soil organic matter has the ability of lead enrichment,and the ability declines with the decreasing particle size.Soil texture may be an important factor for the interaction between soil organic matter and lead distribution.

关 键 词：铅蓄电池厂 污染场地 粒径 土壤有机质 土壤质地 

分 类 号：X53[环境科学与工程—环境工程]