中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: Vapor-phase sorption of hexachlorobenzene on typical municipal solid waste (MSW) incineration fly ashes, clay minerals and activated carbon
作者: Gao, Yuan1;  Zhang, Haijun1;  Chen, Jiping1
关键词: Hexachlorobenzene ;  Sorption ;  Fly ash ;  Activated carbon ;  Clay minerals
刊名: CHEMOSPHERE
发表日期: 2010-11-01
DOI: 10.1016/j.chemosphere.2010.09.008
卷: 81, 期:8, 页:1012-1017
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine
类目[WOS]: Environmental Sciences
研究领域[WOS]: Environmental Sciences & Ecology
英文摘要: Column sorption experiments were conducted at 330 degrees C and 250 degrees C to study the vapor-phase sorption of hexachlorobenzene (HCB) on two kinds of municipal solid waste (MSW) incinerator fly ashes, kaolinite, montmorillonite and activated carbon (AC). Both Freundlich equation and linear equation well fitted the sorption isotherms of HCB vapor on fly ashes and clay minerals at 330 degrees C (r(2) > 0.87), while the sorption isotherm of HCB vapor on AC at 330 degrees C was in the shape of Brunauer type-II adsorption. Catalytic dechlorination of HCB was found to occur on the surface of fly ashes, and pentachlorobenzene was the only dechlorination product detected in the effluent gas. Increasing temperature decreased the sorption of HCB vapor on fly ashes, and promoted the catalytic dechlorination of HCB. On the assumption that the organic carbon and clay minerals in fly ash were derived from AC, kaolinite and montmorillonite, the relative contributions of these components to the apparent sorption capacity of fly ashes at 330 degrees C were estimated. It was found that very small percentage of AC contributed the most to the apparent sorption of HCB vapor on fly ash. The sorption coefficient of HCB on montmorillonite at 250 degrees C was 37 times higher than that at 330 degrees C, suggesting montmorillonite could be a kind of low-cost sorbent to effectively reduce the emission of vapor-phase organochlorine compounds from MSW incinerators. (C) 2010 Elsevier Ltd. All rights reserved.
关键词[WOS]: FLUE-GASES ;  THERMAL-DEGRADATION ;  ORGANIC-COMPOUNDS ;  PCDD/F ;  DECHLORINATION ;  ADSORPTION ;  PCB ;  DESTRUCTION ;  MECHANISM ;  REMOVAL
语种: 英语
WOS记录号: WOS:000284250800005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141835
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

Recommended Citation:
Gao, Yuan,Zhang, Haijun,Chen, Jiping. Vapor-phase sorption of hexachlorobenzene on typical municipal solid waste (MSW) incineration fly ashes, clay minerals and activated carbon[J]. CHEMOSPHERE,2010,81(8):1012-1017.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Gao, Yuan]'s Articles
 [Zhang, Haijun]'s Articles
 [Chen, Jiping]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Gao, Yuan]‘s Articles
 [Zhang, Haijun]‘s Articles
 [Chen, Jiping]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace