Effects of mechanical pretreatment on biogas production from waste paper

Cristina Rodriguez , Abed Alaswad, Timothy Prescott, Abdul-Ghani Olabi

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In the anaerobic digestion of lignocellulosic materials such as waste paper, the accessibility of microorganisms to the fermentable sugars is restricted by their complex structure. A mechanical pre- treatment with a Hollander beater was assessed in order to reduce the biomass particle size and to increase the feedstock‘ specific surface area available to the microorganisms, and therefore improve the biogas yield. The mechanical pretreatment has been applied to a batch of office paper previously shredded and inoculated with sludge from a biogas production plant. A response surface methodology (RSM) was used in order to evaluate the effect of the beating time (BT) and digestion time (DT) on the biogas production; these effects were estimated and discussed using the statistical software Design-Expert v.9
Original languageEnglish
Title of host publicationProceedings of the 8th International Conference on Sustainable Energy & Environmental Protection - Part 1
ISBN (Electronic)9781903978528
Publication statusPublished - 2015


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