caa a22 4500 60616958X CHVBK 20210128100712.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s10098-014-0832-6 doi (NATIONALLICENCE)springer-10.1007/s10098-014-0832-6 Heavy metal flows in multi-resource utilization of high-alumina coal fly ash: a substance flow analysis [Elektronische Daten] [Chenjian Yu, Huiquan Li, Xiaoping Jia, Bo Chen, Qiang Li, Jingfeng Zhang] 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. Springer-Verlag Berlin Heidelberg, 2014 Substance flow analysis nationallicence Coal fly ash utilization nationallicence Heavy metal nationallicence Cr nationallicence Pb nationallicence Yu Chenjian Key Laboratory of Green Process and Engineering National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, 100190, Beijing, China aut Li Huiquan Key Laboratory of Green Process and Engineering National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, 100190, Beijing, China aut Jia Xiaoping School of Environment and Safety Engineering, Qingdao University of Science and Technology, 266042, Qingdao, China aut Chen Bo Key Laboratory of Green Process and Engineering National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, 100190, Beijing, China aut Li Qiang Key Laboratory of Green Process and Engineering National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, 100190, Beijing, China aut Zhang Jingfeng Inner Mongolia Datang International Renewable Energy Resource Development Co., Ltd., 010200, Hohhot, China aut Clean Technologies and Environmental Policy Springer Berlin Heidelberg 17/3(2015-03-01), 757-766 1618-954X 17:3<757 2015 17 10098 https://doi.org/10.1007/s10098-014-0832-6 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10098-014-0832-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yu Chenjian Key Laboratory of Green Process and Engineering National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, 100190, Beijing, China aut NATIONALLICENCE 700 1- Li Huiquan Key Laboratory of Green Process and Engineering National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, 100190, Beijing, China aut NATIONALLICENCE 700 1- Jia Xiaoping School of Environment and Safety Engineering, Qingdao University of Science and Technology, 266042, Qingdao, China aut NATIONALLICENCE 700 1- Chen Bo Key Laboratory of Green Process and Engineering National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, 100190, Beijing, China aut NATIONALLICENCE 700 1- Li Qiang Key Laboratory of Green Process and Engineering National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, 100190, Beijing, China aut NATIONALLICENCE 700 1- Zhang Jingfeng Inner Mongolia Datang International Renewable Energy Resource Development Co., Ltd., 010200, Hohhot, China aut NATIONALLICENCE 773 0- Clean Technologies and Environmental Policy Springer Berlin Heidelberg 17/3(2015-03-01), 757-766 1618-954X 17:3<757 2015 17 10098