Relationship between Lipase Activity and Biogas Rate in Anaerobic Digestion of Organic Fraction of Municipal Solid Waste

Abstract:

Hydrolytic enzymes, which are very key enzymes in hydrolytic step of anaerobic digestion, have an important effect on substrate hydrolysis and biogas production. To research those effect, this paper have investigated the relationship between lipase activity and biogas rate with organic fraction of municipal solid waste (OFMSW) as substrate, at the mesophilic temperature and batch fermentation. The results showed that in the process of AD, the curve of lipase activity was similar as that of biogas rate. With the increase and drop of enzyme activity, biogas rate increased and dropped. When biogas rate was at its peak period, enzyme activity of lipase was at its peak period, too.

• Periodical: Applied Mechanics and Materials (Volumes 295-298)
• Pages: 1834-1839
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.295-298.1834
• Online since: February 2013
• Authors: Jian Chang Li, Ya Ge Yuan, Juan He, Rui Xu
• Keywords: Anaerobic Digestion, Biogas Rate, Enzyme Activity, Lipase, Organic Fraction of Municipal Solid Waste (OFMSW)

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