The effects of FeCl3 on the distribution of the heavy metals Cd, Cu, Cr, and Zn in a simulated multimetal incineration system

Environment International
K S WangK L Lin

Abstract

Recognizing that waste-derived chlorine can enhance heavy metal emissions by forming volatile metallic chlorides during municipal solid waste (MSW) combustion, and that in Taiwan, FeCl3-containing sewage sludge may either be landfilled or coincinerated with other MSW, this study thus investigated the effects of FeCl3 on the speciation and partitioning of heavy metals in a multimetal incineration system by using a tubular furnace and FeCl3-spiked simulated wastes. The molar ratio of chlorine content to heavy metal content (referred to as the Cl/ M ratio), ranging from 3 to 200, was used as a parameter to evaluate the effects of chlorine on the movement of heavy metals between the incinerator discharges. Results indicate that speciation and partitioning were related to the affinity between the chlorine and the heavy metals and between chlorine and hydrogen in the combustion system. The effectiveness of increasing the Cl/M ratio to the formation potential of metallic chlorides and on the shift of heavy metals from the bottom ash to the fly ash and/or the flue gases was found to have in increasing order as follows: Zn>Cu>Cr, a phenomenon basically reflecting the volatility of the heavy metals and their chlorides formed during combu...Continue Reading

Citations

Apr 11, 2003·Journal of Hazardous Materials·Mithat BakogluSavas Ayberk
Jan 25, 2008·Journal of Hazardous Materials·Hua ZhangLi-Ming Shao
Jul 2, 2016·Journal of the Air & Waste Management Association·Hsi-Hsien YangPei Feng Chu
Jul 9, 2013·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Jingde LuanYun Zhao
May 16, 2012·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Laura BiganzoliManuel Campolunghi
Aug 30, 2008·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·P TangF Y Xia
Mar 17, 2020·Environmental Science and Pollution Research International·Stéphane MarcotteCarlos Afonso
Dec 1, 2018·Environmental Science and Pollution Research International·Kristina ČabanováJana Kukutschová

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