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Heavy metal flows in multi-resource utilization of high-alumina coal fly ash: a substance flow analysis
Yu, Chenjian1,2; Li, Huiquan1; Jia, Xiaoping3; Chen, Bo1; Li, Qiang1; Zhang, Jingfeng4
2015-03-01
Source PublicationCLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
ISSN1618-954X
Volume17Issue:3Pages:757-766
Abstract

In China, coal fly ash (CFA) is the third-largest industrial waste and causes significant economic and environmental problems. Based on the technology of extracting alumina co-generated with calcium silicate and calcium silicon slag cement clinker, a multi-resource utilization of high-alumina coal fly ash system (MUCFA) is developed and thought to be a promising approach to utilize CFA. As a solid waste utilization system, the environmental effects of MUCFA, particularly heavy metal pollution, will significantly affect its promotion and development. Therefore, an integrated substance flow analysis (SFA) model is proposed to investigate the heavy metal flows and associated environmental effects of MUCFA. With the combination of sampling test and SFA, migration paths of heavy metals are figured out. The results of value flow analysis and environmental impact assessment depict an outline of MUCFA and indicate that CFA accounts for 24 % of the environmental impact and is not the major source of environmental impact. Chromium (Cr) and lead (Pb) exhibit similar migration paths but differ in the distribution rate of the processes. 57 % of the total Cr and 53 % of the total Pb are migrated into calcium silicon slag, while 24 % of Cr and 33 % of Pb are found in flue gas. In order to eliminate the potential environmental problems, some retrofits are implemented to optimize the heavy metal migration pathway. Moreover, several suggestions on making standards and regulations for waste utilization are provided to both government and companies for the development of MUCFA.

KeywordSubstance Flow Analysis Coal Fly Ash Utilization Heavy Metal Cr Pb
SubtypeArticle
Subject AreaEngineering ; Environmental Sciences & Ecology
WOS HeadingsScience & Technology ; Technology ; Life Sciences & Biomedicine
DOI10.1007/s10098-014-0832-6
Indexed BySCI
Language英语
WOS KeywordEconomy ; Environment ; Elements ; Region ; China ; Plant ; Slag
Funding ProjectNational Natural Science of Foundation of China [71103172, 21136003] ; National Key Technology RD Program [2011BAC06B13] ; National Basic Research Program of China (973 Program) [2013CB632605]
WOS Research AreaEngineering ; Environmental Sciences & Ecology
WOS SubjectEngineering, Environmental ; Environmental Sciences
WOS IDWOS:000351477400016
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/13819
Collection研究所(批量导入)
Corresponding AuthorLi, Huiquan
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Qingdao Univ Sci & Technol, Sch Environm & Safety Engn, Qingdao 266042, Peoples R China
4.Inner Mongolia Datang Int Renewable Energy Resour, Hohhot 010200, Peoples R China
Recommended Citation
GB/T 7714
Yu, Chenjian,Li, Huiquan,Jia, Xiaoping,et al. Heavy metal flows in multi-resource utilization of high-alumina coal fly ash: a substance flow analysis[J]. CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY,2015,17(3):757-766.
APA Yu, Chenjian,Li, Huiquan,Jia, Xiaoping,Chen, Bo,Li, Qiang,&Zhang, Jingfeng.(2015).Heavy metal flows in multi-resource utilization of high-alumina coal fly ash: a substance flow analysis.CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY,17(3),757-766.
MLA Yu, Chenjian,et al."Heavy metal flows in multi-resource utilization of high-alumina coal fly ash: a substance flow analysis".CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY 17.3(2015):757-766.
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