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Toxicity of ionic liquid on anaerobic digestion
Mälardalen University, School of Business, Society and Engineering, Future Energy Center. Tianjin University of Commerce, Tianjin, China.
Mälardalen University, School of Business, Society and Engineering, Future Energy Center.ORCID iD: 0000-0002-5014-3275
Mälardalen University, School of Business, Society and Engineering, Future Energy Center. Tianjin University of Commerce, Tianjin, China.ORCID iD: 0000-0002-6279-4446
University of Shanghai for Science and Technology, Shanghai, China.
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2017 (English)In: Energy Procedia, ISSN 1876-6102, Vol. 142, p. 938-942Article in journal (Refereed) Published
Abstract [en]

Anaerobic digestion is a straightforward process to produce energy from biomass. However, the lignin composed of phenylpropanoid units induces a strong resistance for the hydrolysis step. Ionic liquids (ILs) have been applied in biomass pretreatment to dissolve the biomass components and enhance the anaerobic digestion. However, there are still some challenges such as the toxicity. ILs could inhibit the digestion process and reduce the CH4 production. In this work, a toxicity test for [BMIM]Cl (1-chlorobutane and N-methylimidazole) was conducted. Results show that IL has a strong inhibition and lowered CH4 production when its concentration was higher. At 0.2305±0.0116 g L-1 and 0.4367±0.0219 g L-1, the anaerobic digestion process was inhibited by 10 and 50%, respectively. Accordingly, a higher recovery ratio or a lower pretreatment ratio are necessary to avoid the negative impact of inhibition on BMP. 

Place, publisher, year, edition, pages
Elsevier Ltd , 2017. Vol. 142, p. 938-942
National Category
Energy Engineering
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URN: urn:nbn:se:mdh:diva-38731DOI: 10.1016/j.egypro.2017.12.150ISI: 000452901601016Scopus ID: 2-s2.0-85041553737OAI: oai:DiVA.org:mdh-38731DiVA, id: diva2:1185214
Available from: 2018-02-23 Created: 2018-02-23 Last updated: 2023-08-28Bibliographically approved

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Li, XueqiangSchwede, SebastianLi, Hailong

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