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Leaching Behavior of Fly Ashes from Power Plants
Author(s) -
Guijian LIU,
Lianfen GAO,
Liugen ZHENG,
Haoyuan ZHANG,
Zicheng PENG
Publication year - 2004
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/j.1755-6724.2004.tb00187.x
Subject(s) - fly ash , leaching (pedology) , coal , environmental science , waste management , mining engineering , power station , geology , soil water , engineering , soil science , electrical engineering
The Yanzhou mine district, located in southwestern Shandong Province, is about 1300 km 2 with more than 8times10 9 tons of proved coal reserves and there are 10 big power plants in this area. A large amount of coal ashes, which are regarded as waste materials, have been stockpiled in the area and have influenced the environment of the mine district. In this paper, analysis of fly ash samples from three power plants is carried out, the enrichment and concentration of trace elements, Pb, Zn, Cu and As, in coal ashes are analyzed, and petrological and mineralogical characteristics and chemical compositions of coal ashes are studied. The aim of this work is to provide basic scientific data for utilization of ashes and reduction of environmental pollutions.