ADSORPTION AND DESORPTION OF CADMIUM IN TWO TYPICAL SOILS IN NORTHEASTERN CHINA AS AFFECTED BY BENZO-A-PYRENE

被引：0

作者：

Chen, Su ^{[1
]}

Chen, Ning ^{[1
]}

Chao, Lei ^{[2
]}

Liu, Shuangshuang ^{[3
]}

Sun, Lina ^{[1
]}

Tang, Jiaxi ^{[4
]}

机构：

[1] Shenyang Univ, Minist Educ, Key Lab Reg Environm & Ecoremediat, Shenyang 110044, Peoples R China

[2] Liaoning Acad Environm Sci, Shenyang 110161, Peoples R China

[3] Northeastern Univ, Coll Sci, Shenyang 110004, Peoples R China

[4] Shenyang Agr Univ, Dept Land & Environm, Shenyang 110866, Peoples R China

来源：

FRESENIUS ENVIRONMENTAL BULLETIN | 2014年 / 23卷 / 04期

基金：

中国国家自然科学基金;

关键词：

adsorption; desorption; cadmium; benzo-a-pyrene; soil; COSORPTION;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In this research, the adsorption and desorption of cadmium (Cd) in two Chinese typical soils (burozem and phaeozem) in the presence and the absence of benzo-a-pyrene (BaP) was studied by batch experiments. The results showed that the adsorption and desorption isotherms of Cd on the two soils were well fitted with the Langmuir model and Freundlich model. Phaeozem had higher adsorption ability of Cd in contrast with burozem because of the higher cushioning capacity of phaeozem. When Cd and BaP coexisted, BaP could affect adsorption and desorption of Cd in burozem and phaeozem. The coexistence of BaP inhibited the adsorption of Cd both in burozem and phaeozem. The desorption of Cd decreased with an increase in the concentration of BaP. The presence of BaP inhibited the desorption of Cd from burozem and phaeozem. The quantities of Cd desorption in phaeozem were lower than those in burozem.

引用

页码：995 / 999

页数：5

共 15 条

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