Treatment and resource recovery options for first and second generation bioethanol spentwash - A review.

Cooper, J; Kavanagh, J; Razmjou, A; Chen, V; Leslie, G

Treatment and resource recovery options for first and second generation bioethanol spentwash - A review.

Cooper, J Kavanagh, J Razmjou, A Chen, V Leslie, G

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Publisher:: PERGAMON-ELSEVIER SCIENCE LTD
Publication Type:: Journal Article
Citation:: Chemosphere, 2020, 241
Issue Date:: 2020-02

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Field	Value	Language
dc.contributor.author	Cooper, J
dc.contributor.author	Kavanagh, J
dc.contributor.author	Razmjou, A
dc.contributor.author	Chen, V
dc.contributor.author	Leslie, G
dc.date.accessioned	2021-03-01T06:07:33Z
dc.date.available	2019-09-25
dc.date.available	2021-03-01T06:07:33Z
dc.date.issued	2020-02
dc.identifier.citation	Chemosphere, 2020, 241
dc.identifier.issn	0045-6535
dc.identifier.issn	1879-1298
dc.identifier.uri	http://hdl.handle.net/10453/146574
dc.description.abstract	A decline in the availability of fossil fuel resources coupled with deleterious environmental concerns has prompted further research into biofuels. Conventional bioethanol production via a first-generation approach may soon become superseded through integration with lignocellulosic feedstocks. However, the underlying concerns pertaining to the disposal of high-strength liquid waste (i.e. spentwash) remain both unchanged and constitute a substantial cost to bioethanol manufacturers. Therefore this review details current efforts in the literature to elucidate various approaches for spentwash treatment and investigate the potential for resource recovery. Insight into the composition of distillery wastewater is given in the lead-up to a thorough discussion encompassing the origin, transformation and characterisation of the highly problematic melanoidin compounds entrained within this effluent. Close examination of advanced organic characterisation methods used by researches yields further insight into the nature of spentwash dissolved organic matter (DOM). Employment of both biological and physio-chemical treatment schemes to alleviate the environmental footprint of such high-strength wastewater are also reviewed. Opportunities to dramatically improve the economic viability of biofuel production by exploiting the potential for resource recovery in the form of energy, organic/inorganic constituents and effluent reuse are discussed. Overall, the review culminates by highlighting recommendations for future work to accelerate the onset of an environmentally benign bio-refinery.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	PERGAMON-ELSEVIER SCIENCE LTD
dc.relation.ispartof	Chemosphere
dc.relation.isbasedon	10.1016/j.chemosphere.2019.124975
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Meteorology & Atmospheric Sciences
dc.subject.classification	Environmental Sciences
dc.subject.mesh	Ethanol
dc.subject.mesh	Polymers
dc.subject.mesh	Biofuels
dc.subject.mesh	Recycling
dc.subject.mesh	Waste Water
dc.subject.mesh	Ethanol
dc.subject.mesh	Polymers
dc.subject.mesh	Biofuels
dc.subject.mesh	Recycling
dc.subject.mesh	Waste Water
dc.subject.mesh	Biofuels
dc.subject.mesh	Ethanol
dc.subject.mesh	Polymers
dc.subject.mesh	Recycling
dc.subject.mesh	Waste Water
dc.title	Treatment and resource recovery options for first and second generation bioethanol spentwash - A review.
dc.type	Journal Article
utslib.citation.volume	241
utslib.location.activity	England
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2021-03-01T06:07:31Z
pubs.publication-status	Published
pubs.volume	241

Abstract:

A decline in the availability of fossil fuel resources coupled with deleterious environmental concerns has prompted further research into biofuels. Conventional bioethanol production via a first-generation approach may soon become superseded through integration with lignocellulosic feedstocks. However, the underlying concerns pertaining to the disposal of high-strength liquid waste (i.e. spentwash) remain both unchanged and constitute a substantial cost to bioethanol manufacturers. Therefore this review details current efforts in the literature to elucidate various approaches for spentwash treatment and investigate the potential for resource recovery. Insight into the composition of distillery wastewater is given in the lead-up to a thorough discussion encompassing the origin, transformation and characterisation of the highly problematic melanoidin compounds entrained within this effluent. Close examination of advanced organic characterisation methods used by researches yields further insight into the nature of spentwash dissolved organic matter (DOM). Employment of both biological and physio-chemical treatment schemes to alleviate the environmental footprint of such high-strength wastewater are also reviewed. Opportunities to dramatically improve the economic viability of biofuel production by exploiting the potential for resource recovery in the form of energy, organic/inorganic constituents and effluent reuse are discussed. Overall, the review culminates by highlighting recommendations for future work to accelerate the onset of an environmentally benign bio-refinery.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/146574