Does the addition of proteases affect the biogas yield from organic material in anaerobic digestion?

Liane Müller; Jörg Kretzschmar; Jürgen Pröter; Jan Liebetrau; Michael Nelles; Frank Scholwin

doi:https://doi.org/10.1016/j.biortech.2015.12.038

doi.org/10.1016/j.biortech.2015.12.038

Does the addition of proteases affect the biogas yield from organic material in anaerobic digestion?

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..., Frank Scholwin

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Bioresource Technology11.40

Volume: 203, Pages: 267 - 271

Published: Mar 1, 2016

Abstract

The aim of this study was to investigate the biochemical disintegration effect of hydrolytic enzymes in lab scale experiments. Influences of enzyme addition on the biogas yield as well as effects on the process stability were examined. The addition of proteases occurred with low and high dosages in batch and semi-continuous biogas tests. The feed mixture consisted of maize silage, chicken dung and cow manure. Only very high concentrated enzymes...