Influence of Cu, Fe, Pb, and Zn Chlorides and Oxides on Formation of Chlorinated Aromatic Compounds in MSWI Fly Ash

2009 ◽  
Vol 43 (21) ◽  
pp. 8053-8059 ◽  
Author(s):  
Takashi Fujimori ◽  
Masaki Takaoka ◽  
Nobuo Takeda
Keyword(s):  
Fly Ash ◽  
Aromatic Compounds ◽  
Mswi Fly Ash ◽  
Chlorinated Aromatic Compounds

scholarly journals PCDD/F Formation Catalyzed by the Metal Chlorides and Chlorinated Aromatic Compounds in Fly Ash

2012 ◽  
Vol 12 (2) ◽  
pp. 228-236 ◽  
Author(s):  
Yu-Te Chin ◽  
Chieh Lin ◽  
Guo-Ping Chang-Chien ◽  
Yu-Min Wang
Keyword(s):  
Fly Ash ◽  
Aromatic Compounds ◽  
Metal Chlorides ◽  
Chlorinated Aromatic Compounds

Formation of persistent chlorinated aromatic compounds in simulated and real fly ash from iron ore sintering

2016 ◽  
Vol 19 (4) ◽  
pp. 1437-1445 ◽  
Author(s):  
Yibo Zhang ◽  
Lina Liu ◽  
Yifei Sun ◽  
Rong Zhu ◽  
Xingbao Gao ◽  
...  
Keyword(s):  
Fly Ash ◽  
Aromatic Compounds ◽  
Iron Ore ◽  
Iron Ore Sintering ◽  
Ore Sintering ◽  
Chlorinated Aromatic Compounds

The Correlation Pattern of Fly Ash Components: Chromium as a Potential Catalyst in the Thermal Formation of Chlorinated Aromatic Compounds

2004 ◽  
Vol 1 (1) ◽  
pp. 18 ◽  
Author(s):  
Tomas Öberg ◽  
Tomas Öhrström ◽  
Jan Bergström
Keyword(s):  
Fly Ash ◽  
Organic Pollutants ◽  
Aromatic Compounds ◽  
Catalytic Effect ◽  
Chlorinated Phenols ◽  
Correlation Pattern ◽  
Aromatic Molecules ◽  
Chemical Agents ◽  
Chlorinated Aromatic Compounds

Environmental Context.Harmful chlorinated aromatic molecules are often formed and released into the environment during incineration of municipal waste and other waste fuels. This is a problem that has been known since the 1970s, and while efforts are being made to reduce these emissions, these persistent organic pollutants are still subsequently released into the environment, with residues and emissions to the atmosphere. In an attempt to uncover the chemical agents responsible for the formation of these pollutants, this study reveals that chromium, a commonly encountered metal, could be an important factor. Abstract.Chlorinated aromatic compounds are unintentionally released from combustion sources into the environment. This thermal formation is catalyzed by fly ash components and much interest has been focussed on the role of copper. This study report results from a series of 16 full-scale trials with different fuel compositions. The correlation pattern of fly ash components seem to suggest that the catalytic effect may be due also to other metal oxychlorination catalysts. Chromium shows particularly strong and statistically significant correlations with many of the chlorinated phenols, benzenes, dibenzo-p-dioxins (PCDDs), and dibenzofurans (PCDFs).

A mini-review of heavy metal recycling technologies for municipal solid waste incineration fly ash

2021 ◽  
pp. 0734242X2110039
Author(s):  
Huan Wang ◽  
Fenfen Zhu ◽  
Xiaoyan Liu ◽  
Meiling Han ◽  
Rongyan Zhang
Keyword(s):  
Fly Ash ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Waste Incineration ◽  
Electrochemical Process ◽  
Chemical Extraction ◽  
Air Pollution Control ◽  
Municipal Solid Waste Incineration ◽  
Mswi Fly Ash ◽  
Metal Recycling

This mini-review article summarizes the available technologies for the recycling of heavy metals (HMs) in municipal solid waste incineration (MSWI) fly ash (FA). Recovery technologies included thermal separation (TS), chemical extraction (CE), bioleaching, and electrochemical processes. The reaction conditions of various methods, the efficiency of recovering HMs from MSWI FA and the difficulties and solutions in the process of technical development were studied. Evaluation of each process has also been done to determine the best HM recycling method and future challenges. Results showed that while bioleaching had minimal environmental impact, the process was time-consuming. TS and CE were the most mature technologies, but the former process was not cost-effective. Overall, it has the greatest economic potential to recover metals by CE with scrubber liquid produced by a wet air pollution control system. An electrochemical process or solvent extraction could then be applied to recover HMs from the enriched leachate. Ongoing development of TS and bioleaching technologies could reduce the treatment cost or time.

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