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Evaluation of Heavy Metals Influence on Biogas Production

Author(s): Ernestas Zaleckas | Egle Sendžikienė | Rūta Čiutelytė

Journal: Environmental Research, Engineering and Management
ISSN 1392-1649

Volume: 62;
Issue: 4;
Start page: 14;
Date: 2013;
Original page

Keywords: biogas | heavy metal | methane | digestion | organic matter

Heavy metals play a very significant role in the performance and stability of biogas digesters, which are operated with organic fraction of municipal solid wastes or any other type of organic waste. For this reason this paper tries to evaluate the impact of heavy metals on biogas yield and quality. Anaerobic digestion of sewage sludge and rapeseed cake mixture has been carried out for 14 days. The obtained data show that the greatest negative impact on biogas production was made by zinc additive. Meanwhile, methane content in biogas varied from 64.5 to 70%.DOI:
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