富里酸在土壤环境中的吸附研究  

Study on Adsorption of Fulvic Acid in Soil Environment

作　　者：李尚[1] 许旭[1] 陶巍[1] 禹浩[1] 

机构地区：[1]合肥工业大学资源与环境工程学院,安徽合肥230009

出　　处：《环境科学与管理》2015年第3期78-81,共4页Environmental Science and Management

摘　　要：富里酸在土壤中的吸附影响着土壤肥力和土壤环境,本文比较了不同p H、离子强度下,富里酸对土壤环境吸附性能的影响,探究了高岭土对富里酸的吸附条件。结果表明吸附在高岭土上的富里酸可以改变高岭土的结构,与高岭土空白样相比,复合体的结构更加分散。高岭土的不同组分对富里酸的吸附容量不同,对富里酸不同官能团的亲和性也存在明显差异。富里酸在高岭土上的吸附及有机污染物在土壤环境中的吸附作用,与烷基、芳香基团呈正相关。The adsorption of fulvic acid in soil affects the soil fertility and environment. Under different p H and ionic strength,this paper compares the performance of soil environment adsorption of fulvic acid,and fulvic acid in kaolin adsorption conditions. The results show that the adsorbed on kaolin fulvic acid can alter the structure of kaolin,and compared with the blank kaolin,structure of the complexes are more scattered. Kaolin adsorption capacity of different components of fulvic acid is different,and the affinity of fulvic acid is different functional groups have obvious difference. Fulvic acid adsorbed on kaolin and organic pollutants in soil environment adsorption effect,and alkyl,aromatic groups were positively correlated.

关 键 词：土壤环境 高岭土 富里酸 吸附 

分 类 号：X71[环境科学与工程—环境工程]