Dioxins formation in salt-laden power boilers: A mass balance
| Autor: | Ibrahim Karidio, C.E. Luthe, Vic Uloth |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Wood waste
Pulp mill Environmental Engineering Municipal solid waste Waste management Chemistry Health Toxicology and Mutagenesis Public Health Environmental and Occupational Health Air pollution General Medicine General Chemistry Particulates medicine.disease_cause Combustion Pollution Material balance Stack (abstract data type) medicine Environmental Chemistry |
| Zdroj: | Chemosphere. 36:231-249 |
| ISSN: | 0045-6535 |
| DOI: | 10.1016/s0045-6535(97)00356-1 |
| Popis: | Stack dioxins emissions at a coastal pulp mill burning salt-laden wood waste in its power boiler, at typical steam production rates, were found to be 0.089 ng/m 3 (in terms of toxicity equivalents (TEQs)). These levels are well within the guideline of 0.5 ng/m 3 recommended for municipal solid waste incinerators by the Canadian Council of Ministers for Environment. Stack emissions accounted for less than 1 % of all dioxin TEQs generated by the power boiler. While some dioxins appear to have been generated within the particulate collection devices, the excellent TEQ removal efficiency of these units confirms their essential role in controlling stack dioxins emissions. The TEQ contribution from high temperature (>600°C) dioxins formation appears to have been minimal, less than 15% of the total. This suggests that in power boilers fuelled with salt-laden wood waste, dioxins formation occurs primarily at low temperatures. Consequently, temperature quenching could be relatively effective as a potential control strategy. |
| Databáze: | OpenAIRE |
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