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Reference Number GR/R98549/01
Title Investigation of the 'Dioxin Memory Effect' in Waste lncinerator Flue Gas Systems
Status Completed
Energy Categories RENEWABLE ENERGY SOURCES(Bio-Energy, Applications for heat and electricity) 100%;
Research Types Basic and strategic applied research 100%
Science and Technology Fields PHYSICAL SCIENCES AND MATHEMATICS (Chemistry) 100%
UKERC Cross Cutting Characterisation Not Cross-cutting 100%
Principal Investigator Professor P Williams
No email address given
Energy Resources Research Unit
University of Leeds
Award Type Standard
Funding Source EPSRC
Start Date 22 January 2003
End Date 21 January 2006
Duration 36 months
Total Grant Value £222,800
Industrial Sectors Environment; R&D
Region Yorkshire & Humberside
Programme Materials, Mechanical and Medical Eng, Process Environment and Sustainability
Investigators Principal Investigator Professor P Williams , Energy Resources Research Unit, University of Leeds (100.000%)
  Industrial Collaborator Project Contact , Onyx Sheffield Ltd (0.000%)
Project Contact , Varian Ltd (0.000%)
Web Site
Abstract Dioxins (polychlorinated dibenzodioxins - PCDD) and furans (Polychlorinated dibenzofurans - PCDF) are organic micropollutants which are known to occur at trace levels in waste incinerator flue gases. There is considerable concern from the public and environmental groups surrounding the issue of dioxins and furans in the environment due to their perceived associated extreme health hazard. The control strategies being developed to minimise or eliminate PCDD/F from waste incinerator flue gas emissions are centered on operational and process controls such as combustion control, rapid cooling of flue gases, the use of additives such as activated carbon, catalytic systems for PCDD/F removal etc. However, it has been shown that there is a 'memory effect' associated with PCDD/F emissions from waste incinerators, where desorption of previously adsorbed PCDD/F from flyash in the incinerator system can take place over several days. Consequently, it is difficult to estimate the effectsof control strategies implemented for PCDD/F minimisation and can also lead to misinterpretation of results. This proposal seeks to investigate the desorption of PCDD/F from flyash under conditions typical of those found in waste incineration systems. The influence of flyash composition and PCDD/F congener profiles are also to be investigated
Publications (none)
Final Report (none)
Added to Database 01/01/07