期刊
ENGENHARIA SANITARIA E AMBIENTAL
卷 19, 期 2, 页码 187-194出版社
ASSOC BRASILEIRA ENGENHARIA SANITARIA AMBIENTAL
DOI: 10.1590/S1413-41522014000200009
关键词
pyrolysis; waste treatment; health waste; biochar
This work shows the technical and environmental evaluation of a pilot plant for treatment of health waste by pyrolysis, regarding its productivity, fuel consumption, weight loss in the process, atmospheric emissions, wastewater and the charcoal obtained. The process resulted in values of weight loss between 46,75 and 58,77%, for processing time ranged between 2 and 6 hours. The greatest environmental safety was obtained in the third tested operation condition, concerning atmospheric emissions of pollutants, as the concentration of dioxins and furans value obtained was 0,0162ng/Nm(3). Two combustors were used in the operation, pyrolysis gas was injected in the biomass feed pipe, and the air flow volume was increased by 15% in the combustion zone of the wood chips, mixed with the pyrolysis gas. The proposed solution has shown great potential to be used in municipalities dealing with proper management of health waste as a challenge to be overcome.
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