Evaluation of Heavy Metals Influence on Biogas Production

Ernestas Zaleckas, Egle Sendžikienė, Rūta Čiutelytė

Abstract


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: http://dx.doi.org/10.5755/j01.erem.62.4.2040


Keywords


biogas; heavy metal; methane; digestion; organic matter

Full Text: Zaleckas_4.62_2012_EREM

Print ISSN: 1392-1649
Online ISSN: 2029-2139