十溴联苯醚在土壤中吸附行为的研究  

Study on adsorption behavior of PBDE-209 in soil

作　　者：贾文珍[1] 祝方[1] 翦英红[2] 

机构地区：[1]太原理工大学环境科学与工程学院,太原030024 [2]吉林化工学院环境与生物工程学院,吉林132022

出　　处：《环境工程学报》2011年第3期657-661,共5页Chinese Journal of Environmental Engineering

基　　金：山西省教育厅高校科技开发项目(20090012)

摘　　要：初步研究了十溴联苯醚（BDE-209）在土壤上的吸附行为,并探讨了影响吸附行为的环境因素：pH值、温度。结果表明,pH对BDE-209的吸附影响不显著;温度越高,吸附量越大。土壤对BDE-209的吸附经历了2个平衡：0~32 h达到第1次平衡;32~72 h达到第2次吸附平衡;吸附平衡时间为48 h。土壤对BDE-209的吸附存在2个吸附平衡浓度。在6~14 mg/L浓度范围内,其等温线较好地符合Freundlich和Langmuir模型。An experiment was conducted to preliminarily study the adsorption of deca-bromodiphenyl ether（BDE-209） in the soil and to explore factors affecting the adsorption behavior： pH value and temperature.Results showed that changes in the pH value in the soil could not alter the adsorption amount of BDE-209.The adsorption ability of BDE-209 to soil was enhanced by increasing temperature.The adsorption of BDE-209 to soil can be undergone two balance： after 0～32 h the adsorption could reach the first balance,after 32～72 h the second balance.The adsorption equilibrium time would be set to 48 h.The adsorption of BDE-209 to the soil had two adsorption equilibrium concentrations.In the concentration scope of 6～14 mg/L,the isotherms line was fit with the Freundlich and Langmuir model well.

关 键 词：十溴联苯醚 吸附等温线 影响因素 

分 类 号：X53[环境科学与工程—环境工程]