Inhibiting factors in the anaerobic digestion process for biogas production

Cornet, C. and Euverink, G. J. W. (2017) Inhibiting factors in the anaerobic digestion process for biogas production. Bachelor's Thesis, Biology.

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Abstract

The production of biogas by utilising the anaerobic digestion process is an economically and ecologically interesting process. However, the microbial community and the chemical balances of the anaerobic digestion process are vulnerable to a range of inhibitors. Determining inhibitors and solving the problems that come along is key to increase methane yields in the biogas production. Several methods have been applied to decrease inhibitory effects in anaerobic digesters including the physical-chemical featured separation method called air-stripping. Air-stripping is a method to reduce concentrations of free ammonia which is a known inhibitor of the biogas production. The effects of air-stripping on other components of the anaerobic digestion process are less heavily studied though. This article presents a summary of factors that are reported to inhibit the biogas production and reviews the effects the air-stripping method could have on the following factors: pH, ammonia, sulphate reducing bacteria, long chain fatty acids, humic acids, salinity, heavy metals and nanomaterials.

Item Type:	Thesis (Bachelor's Thesis)
Degree programme:	Biology
Thesis type:	Bachelor's Thesis
Language:	English
Date Deposited:	15 Feb 2018 08:31
Last Modified:	15 Feb 2018 08:31
URI:	https://fse.studenttheses.ub.rug.nl/id/eprint/15804

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