Physical and chemical regeneration of zeolitic adsorbents for dye removal in wastewater treatment
文献类型：期刊论文
| 作者 | Wang, Shaobin; Li, Huiting; Xie, Sujuan; Liu, Shenglin; Xu, Longya |
| 刊名 | chemosphere
 |
| 出版日期 | 2006-09-01 |
| 卷号 | 65期号:1页码:82-87 |
| 关键词 | MCM-22 natural zeolite regeneration dye adsorption kinetics |
| 产权排序 | 2;3 |
| 通讯作者 | 徐龙伢 |
| 英文摘要 | natural zeolite and synthetic zeolite, mcm-22, were employed as effective adsorbents for a basic dye, methylene blue, removal from wastewater. two methods, fenton oxidation and high temperature combustion, have been used for regeneration of used materials. it is found that mcm-22 exhibits equilibrium adsorption at 1.7 x 10(-4) mol g(-1), much higher than the adsorption of natural zeolite (5 x 10(-5) mol g(-1)) at initial dye concentration of 2.7 x 10(-5) m and 30 degrees c. solution ph will affect the adsorption behaviour of mcm-22. higher solution ph results in higher adsorption capacity. the regenerated adsorbents show different capacity depending on regeneration technique. physical regeneration by high temperature combustion will be better than chemical regeneration using fenton oxidation in producing effective adsorbents. regeneration of mcm-22 by high temperature treatment can make the adsorbent exhibit comparable or superior adsorption capacity as compared to the fresh sample depending on the temperature and time. the optimal temperature and time will be 540 degrees c and 1 h. the fenton oxidation will recover 60% adsorption capacity. for natural zeolite, regeneration can not fully recover the adsorption capacity with the two techniques and the regenerated natural zeolites by the two techniques are similar, showing 60% adsorption capacity of fresh sample. kinetic studies indicate that the adsorption follows pseudo-second-order kinetics. (c) 2006 elsevier ltd. all rights reserved. |
| WOS标题词 | science & technology ; life sciences & biomedicine |
| 类目[WOS] | environmental sciences |
| 研究领域[WOS] | environmental sciences & ecology |
| 关键词[WOS] | activated carbon ; methylene-blue ; red mud ; adsorption ; mcm-22 ; sorption ; alkylation |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000241015300011 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/98203]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Curtin Univ Technol, Dept Chem Engn, Perth, WA 6845, Australia 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Shaobin,Li, Huiting,Xie, Sujuan,et al. Physical and chemical regeneration of zeolitic adsorbents for dye removal in wastewater treatment[J]. chemosphere,2006,65(1):82-87. |
| APA | Wang, Shaobin,Li, Huiting,Xie, Sujuan,Liu, Shenglin,&Xu, Longya.(2006).Physical and chemical regeneration of zeolitic adsorbents for dye removal in wastewater treatment.chemosphere,65(1),82-87. |
| MLA | Wang, Shaobin,et al."Physical and chemical regeneration of zeolitic adsorbents for dye removal in wastewater treatment".chemosphere 65.1(2006):82-87. |
入库方式： OAI收割
来源：大连化学物理研究所
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