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Effects of organic composition on mesophilic anaerobic digestion of food waste
Tsinghua University, Beijing, China.
Tsinghua University, Beijing, China.
University College London, London, United Kingdom.
Mälardalen University, School of Business, Society and Engineering, Future Energy Center.ORCID iD: 0000-0002-6279-4446
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2017 (English)In: Bioresource Technology, ISSN 0960-8524, E-ISSN 1873-2976, Vol. 244, 213-224 p.Article in journal (Refereed) Published
Abstract [en]

Anaerobic digestion of food waste (FW) has been widely investigated, however, little is known about the influence of organic composition on the FW digestion process. This study aims to identify the optimum composition ratios of carbohydrate (CA), protein (CP) and lipid (EE) for maintaining high methane yield and process stability. The results show that the CA–CP–EE ratio was significantly correlated with performance and degradability parameters. Controlling the CA–CP–EE ratio higher than 1.89 (CA higher than 8.3%, CP lower than 5.0%, and EE lower than 5.6%) could be an effective way to maintain stable digestion and achieve higher methane production (385–627 mL/g VS) and shorter digestion retention (196–409 h). The CA-CP-EE ratio could be used as an important indicator for digestion performance. To effectively evaluate organic reduction, the concentration and removal efficiency of organic compositions in both solid phases and total FW should be considered. 

Place, publisher, year, edition, pages
Elsevier Ltd , 2017. Vol. 244, 213-224 p.
National Category
Renewable Bioenergy Research
Identifiers
URN: urn:nbn:se:mdh:diva-36247DOI: 10.1016/j.biortech.2017.07.006ISI: 000410545300028Scopus ID: 2-s2.0-85026632716OAI: oai:DiVA.org:mdh-36247DiVA: diva2:1133903
Available from: 2017-08-17 Created: 2017-08-17 Last updated: 2017-09-28Bibliographically approved

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CiteExportLink to record
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Citation style
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