Removal of dieldrin from aqueous solution by a novel triolein-embedded composite adsorbent
文献类型：期刊论文
| 作者 | Ru, Jia ; Liu, Huijuan ; Qu, Jiuhui ; Wang, Aimin ; Dai, Ruihua |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2007-03-06 |
| 卷号 | 141期号:1页码:61-69 |
| 关键词 | activated carbon adsorption persistent organic pollutants (POPs) triolein |
| 英文摘要 | In this study, a novel triolein-embedded activated carbon composite adsorbent (CA-T) was prepared and applied for the adsorption and removal of dieldrin from aqueous systems. Experiments were carried out to investigate the adsorption behavior of dieldrin on CA-T, including adsorption isotherms, adsorption kinetics, the influence of initial concentration, temperature, shaking speed, pH and the addition of humic acid (HA) on adsorption. The adsorption isotherms accorded with Freundlich equation. Three kinetics models, including pseudo-first-order, pseudo-second-order and intraparticle diffusion models, were used to fit the experimental data. By comparing the correlation coefficients, it was found that both pseudo-second-order and intraparticle diffusion models were used to well describe the adsorption of dieldrin on CA-T. The addition of HA had little effect on dieldrin adsorption by CA-T. Results indicated that CA-T appeared to be a promising adsorbent for removing lipophilic dieldrin in trace amount, which was advantageous over pure granular activated carbon (GAC). The adsorption rate increased with increasing shaking speed, initial concentration and temperature, and remained almost unchanged in the pH range of 4-8. Thermodynamic calculations indicated that the adsorption reaction was spontaneous with a high affinity and the adsorption was an endothermic reaction. (c) 2006 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000244985900009 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/22587]  |
| 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, Jia,Liu, Huijuan,Qu, Jiuhui,et al. Removal of dieldrin from aqueous solution by a novel triolein-embedded composite adsorbent[J]. JOURNAL OF HAZARDOUS MATERIALS,2007,141(1):61-69. |
| APA | Ru, Jia,Liu, Huijuan,Qu, Jiuhui,Wang, Aimin,&Dai, Ruihua.(2007).Removal of dieldrin from aqueous solution by a novel triolein-embedded composite adsorbent.JOURNAL OF HAZARDOUS MATERIALS,141(1),61-69. |
| MLA | Ru, Jia,et al."Removal of dieldrin from aqueous solution by a novel triolein-embedded composite adsorbent".JOURNAL OF HAZARDOUS MATERIALS 141.1(2007):61-69. |
入库方式： OAI收割
来源：生态环境研究中心
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