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Dechlorination-controlled polychlorinated dibenzofuran isomer patterns from municipal waste incinerators

Article Abstract:

Predicting polychlorinated dibenzofuran isomer patterns in municipal waste incinerator emissions helps to reveal their formation, which may assist in preventing production of the compounds.

Illustration, Air pollution

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An isomer prediction model for PCNs, PCDD/Fs, and PCBs from municipal waste incinerators

Article Abstract:

Fly ash from seven fluidized and five stoker bed incinerators is compared to an isomer prediction model based on chlorination positions and symmetry numbers. Polychlorinated dibenzo-p-dioxins, polychlorinated naphthalenes, polychlorinated dibenzofurans, and polychlorinated biphenyls are measured in the fly ash and charted in comparison to the predicted data, showing some congruence.

Japan, Ground or Treated Mineral and Earth Manufacturing, Alkalies and chlorine, Alkalies and Chlorine Manufacturing, Chlorine, Minerals, ground or treated, Fly Ash, Refuse disposal industry, Waste management industry

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Effect of sulfur dioxide on the formation mechanism of polychlorinated dibenzodioxin and dibenzofuran in municipal waste combustors

Article Abstract:

Research by the Environmental Protection Agency's Air and Energy Engineering Research Laboratory and Acurex Corp determined how sulfur dioxide affects the formation of polychlorinated dibenzodioxin (PCDD) and polychlorinated dibenzofuran (PCDF) in municipal waste incinerators. The research indicates that sulfur dioxide may disrupt the formation of PCDD and PCDF by reacting with copper to form copper sulphate. The copper would otherwise catalyze the formation of chlorine gas.

Incineration, Sulfur dioxide

Similar abstracts:

• Abstracts: Seasonal, anthropogenic, air mass, and meteorological influences on the atmospheric concentrations of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs): evidence for the importance of diffuse combustion sources
• Abstracts: Short-term temperature-dependent air-surface exchange and atmospheric concentrations of polychlorinated naphthalenes and organochlorine pesticides

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