Selective removal of organochlorine pesticides (OCPs) from aqueous solution by triolein-embedded composite adsorbent
文献类型：期刊论文
| 作者 | Ru, J. ; Liu, H. J. ; Qu, J. H. ; Wang, A. M. ; Dai, R. H. ; Wang, Z. J. |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES
 |
| 出版日期 | 2007-01 |
| 卷号 | 42期号:1页码:53-61 |
| 关键词 | adsorption triolein activated carbon organochlorine pesticides (OCPs) octanol-water partition coefficient (log K-ow) |
| 英文摘要 | A novel composite adsorbent (CA-T) was used for the selective removal of organochlorine pesticides (OCPs) from aqueous solution. The adsorbent was composed of the supporting activated carbon and the surrounding triolein-embedded cellulose acetate membrane. Scanning electron microscopy (SEM), N-2 adsorption isotherms and fluorescence methods were used to characterize the physicochemical properties of CA-T. Triolein was perfectly embedded in the cellulose acetate membrane and deposited on the surface of activated carbon. The adsorbent was stable in water and no triolein leakage was detected during the test periods. Some organochlorine pesticides (OCPs), such as dieldrin, endrin, aldrin, and heptachlor epoxide, were used as model contaminants and removed by CA-T in laboratory batch experiments. The adsorption isotherm followed the Freundlich equation and the kinetic data fitted well to the pseudo-second-order reaction model. Results also indicated that CA-T appeared to be a promising adsorbent with good selectivity and satisfactory removal rate for lipophilic OCPs from aqueous solutions when present in trace amounts. The adsorption rate and removal efficiency for lipophilic OCPs were positively related to their octanol-water partition coefficients (log K-ow). Lower residual concentrations of OCPs were achieved when compared to granular activated carbon (GAC). |
| WOS记录号 | WOS:000242711000008 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/22591]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Ru, J.,Liu, H. J.,Qu, J. H.,et al. Selective removal of organochlorine pesticides (OCPs) from aqueous solution by triolein-embedded composite adsorbent[J]. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES,2007,42(1):53-61. |
| APA | Ru, J.,Liu, H. J.,Qu, J. H.,Wang, A. M.,Dai, R. H.,&Wang, Z. J..(2007).Selective removal of organochlorine pesticides (OCPs) from aqueous solution by triolein-embedded composite adsorbent.JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES,42(1),53-61. |
| MLA | Ru, J.,et al."Selective removal of organochlorine pesticides (OCPs) from aqueous solution by triolein-embedded composite adsorbent".JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES 42.1(2007):53-61. |
入库方式： OAI收割
来源：生态环境研究中心
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