Mechanical pretreatment of waste paper for biogas production

Rodriguez, Cristina and Alaswad, Abed and El-Hassan, Zaki and Olabi, A.G. (2017) Mechanical pretreatment of waste paper for biogas production. Waste Management, 68. pp. 157-164. ISSN 0956-053X

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Abstract

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 pretreatment 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. Pretreatment of paper waste for 60 min improves the methane yield by 21%, from a value of 210 ml/gVS corresponding to untreated paper waste to 254 ml/gVS. 30 min pretreatment have no significant effect on the methane yield. A response surface methodology was used to evaluate the effect of the beating time
and feedstock/inoculum ratio on the methane yield. An optimum methane yield of 253 ml/gVS was achieved at 55 min of beating pretreatment and a F/I ratio of 0.3

Item Type: Article
Uncontrolled Keywords: Renewable energy Biogas Biomass Waste paper Mechanical pretreatment Anaerobic digestion
Subjects: H800 Chemical, Process and Energy Engineering
Divisions: Faculty of Computing, Engineering and the Built Environment
Faculty of Computing, Engineering and the Built Environment > School of Engineering and the Built Environment
Faculty of Computing, Engineering and the Built Environment > School of Engineering and the Built Environment > Advanced Design Engineering
Depositing User: $ Ian McDonald
Date Deposited: 26 Sep 2017 14:34
Last Modified: 10 Oct 2017 13:51
URI: http://www.open-access.bcu.ac.uk/id/eprint/5189

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