| 黄河三角洲地区湿地土壤对多环芳烃的吸附特征 |
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| 引用本文： | 罗雪梅,何孟常,刘昌明. 黄河三角洲地区湿地土壤对多环芳烃的吸附特征[J]. 环境化学, 2007, 26(2): 125-129 |
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| 作者姓名： | 罗雪梅 何孟常 刘昌明 |
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| 作者单位： | 北京师范大学环境学院,环境模拟与污染控制国家重点实验室,北京,100875 |
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| 基金项目： | 国家自然科学基金 , 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 以黄河三角洲湿地土壤为对象,研究菲和苯并[a]芘(BaP)在土壤中的吸附特性.结果表明:菲和BaP在黄河三角洲地区湿地土壤的吸附速率都较快,均能在48h内达到平衡;土壤对菲和BaP的吸附等温线均呈线形,能较好地符合线性和Freundlich方程,样品经H2O2处理后对PAHs的吸附量明显降低,表明土壤中有机与无机矿物组分在吸附过程的作用不同;湿地土壤对多环芳烃的吸附明显存在固体效应,随着土壤颗粒物粒径和体系离子强度的增大,土壤的吸附容量都在降低.
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| 关 键 词： | 湿地土壤 多环芳烃 吸附 黄河 黄河 三角洲地区 湿地土壤 多环芳烃 吸附特征 YELLOW RIVER DELTA SOIL WETLAND SORPTION AROMATIC HYDROCARBONS 吸附容量 离子强度 体系 粒径 颗粒物 体效应 存在 作用 吸附过程 无机矿物组分 |
| 修稿时间： | 2006-01-23 |
CHARACTERISTICS OF POLYCYCLIC AROMATIC HYDROCARBONS SORPTION ON WETLAND SOIL IN YELLOW RIVER DELTA |
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| LUO Xue-mei,HE Meng-chang,LIU Chang-ming. CHARACTERISTICS OF POLYCYCLIC AROMATIC HYDROCARBONS SORPTION ON WETLAND SOIL IN YELLOW RIVER DELTA[J]. Environmental Chemistry, 2007, 26(2): 125-129 |
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| Authors: | LUO Xue-mei HE Meng-chang LIU Chang-ming |
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| Affiliation: | State Key Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing, 100875, China |
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| Abstract: | Polycyclic aromatic hydrocarbons(PAHs) sorption on wetland soil in Yellow river delta was studied. The results indicated that sorption isotherms of wetland soil and samples treated by H_2O_2 were linear;PAH_s sorption isotherms could be well fitted to Linear and Freundlich equations. Different soil concentration, soil particles magnitude and system Ca~(2 ) concentration influenced PAH_s sorption process. With particles magnitude and Ca~(2 ) concentration increasing, adsorption capacity(K_d) of PAHs gradually decreased. |
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| Keywords: | wetland soil PAHs sorption Yellow river. |
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