Hedman, Björn
- Institutionen för skogens biomaterial och teknologi, Sveriges lantbruksuniversitet
Sammanfattning
The dry combustible fraction of source-sorted household waste, including material that would otherwise be recycled, was mixed with the energy crop reed canary-grass (Phalaris arundinacea L.), and combusted as briquettes in 150 and 600 kW biofuel-boilers without advanced cleaning systems. The source-sorted waste was further sorted and characterized according to its material and chemical contents. The bulk of the waste's chlorine content came from the non-package plastic fraction, whereas 90-95% of Sigma PCDD/F (74-90% of WHO-TEQ) originated from the textile fraction. The sources of the dioxins in the waste fractions are discussed. The balance of dioxin levels was negative, i.e., the amounts of dioxins output in the flue gas were lower than those input in the fuel, except when there were operational disturbances in the combustion. In one of the combustion trials the total levels of dioxins in the flue-gas and ashes were also lower than the input levels. The use of additional cleaning equipment will be needed to ensure that emissions of dioxins and hydrochloric acid will be below legal limits. (C) 2006 Elsevier Ltd. All rights reserved.
Nyckelord
Source-sorted household waste; reed canary-grass; biomass; dioxins; textile
Publicerad i
Waste Management
2007, volym: 27, nummer: 11, sidor: 1580-1592
Utgivare: PERGAMON-ELSEVIER SCIENCE LTD
SLU författare
UKÄ forskningsämne
Miljö- och naturvårdsvetenskap
Bioenergi
Publikationens identifierare
- DOI: https://doi.org/10.1016/j.wasman.2006.08.008
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/14840