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Pre-treatment of distillery spent wash (vinasse) with vortex based cavitation and its influence on biogas generation

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dc.contributor.author Nagarajan, Sanjay
dc.contributor.author Ranade, Vivek V.
dc.date.accessioned 2020-09-15T10:14:37Z
dc.date.issued 2020
dc.identifier.uri http://hdl.handle.net/10344/9216
dc.description peer-reviewed en_US
dc.description The full text of this article will not be available in ULIR until the embargo expires on the 23/06/2021
dc.description.abstract Distilleries generate high COD (chemical oxygen demand) wastewater streams that are anaerobically digested to produce biogas with sub-optimal yields. In this work, for the first time, novel vortex-based hydrodynamic cavitation (HC) pre-treatment of these waste streams was investigated for significantly enhancing biogas yields. Molasses spent wash (120,000 ppm COD, India) and vinasse (27,000 ppm COD, Brazil) were pre-treated at varying number of passes (between 1 and 20) through the HC device at constant inflow, biochemical methanation potential (BMP) was measured and described using a first order model. Vortex-based HC pre-treatment led to 14% enhancement (2 passes) in BMP from spent wash (difficult to digest compared to vinasse) with a net energy gain of 1 GJ/ton COD. 10–22% increase in biogas yields from large-scale industrial spent wash digesters confirmed the laboratory findings. The work presented is useful and can be translated to recalcitrant feedstock for enhancing valorization using vortex-based HC pre-treatment. en_US
dc.language.iso eng en_US
dc.publisher Elsevier en_US
dc.relation.ispartofseries Bioresource Technology Reports;11, article 100480
dc.relation.uri https://doi.org/10.1016/j.biteb.2020.100480
dc.rights This is the author’s version of a work that was accepted for publication in Bioresource Technology Reports. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Bioresource Technology Reports, 11, article 100480,https://doi.org/10.1016/j.biteb.2020.100480 en_US
dc.subject vortex based hydrodynamic cavitation en_US
dc.subject spent wash en_US
dc.subject vinasse en_US
dc.subject biomethane en_US
dc.subject energy gain en_US
dc.title Pre-treatment of distillery spent wash (vinasse) with vortex based cavitation and its influence on biogas generation en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.1016/j.biteb.2020.100480
dc.contributor.sponsor Innovate UK en_US
dc.contributor.sponsor Newton Fund en_US
dc.contributor.sponsor BBSRC UK en_US
dc.contributor.sponsor Department of Biotechnology, Government of India en_US
dc.relation.projectid BB/S011951/1 en_US
dc.date.embargoEndDate 2021-06-23
dc.embargo.terms 2021-06-23 en_US
dc.rights.accessrights info:eu-repo/semantics/embargoedAccess en_US


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