Relative influence of process variables during non-catalytic wet oxidation of municipal sludge.

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dc.contributor.author Baroutian, Saeid en
dc.contributor.author Smit, Anne-Marie en
dc.contributor.author Gapes, Daniel James en
dc.date.accessioned 2018-10-15T02:07:57Z en
dc.date.issued 2013-11 en
dc.identifier.issn 0960-8524 en
dc.identifier.uri http://hdl.handle.net/2292/41531 en
dc.description.abstract Individual and interactive effects of process variables on the degradation of fermented municipal sludge were examined during wet oxidation. The process was carried out at 220-240°C using 1:1-2:1 oxygen to biomass ratio and 300-500 rpm stirring speed. Response surface methodology coupled with a faced-centred central composite design was used to evaluate the effect of these variables on total suspended solids, volatile suspended solids and total chemical oxygen demand. Multivariate analysis was conducted for the initial and near completion stages of reaction: 5 and 60 min treatments, respectively. Temperature had the most significant effect on degradation rate throughout. During the initial stage the effect of mixing intensity was less significant than that of oxygen ratio. Mixing intensity did not influence degradation rate at the later stage in the process. During the near completion stage, the interaction of temperature and oxygen ratio had significant effect on sludge degradation. en
dc.format.medium Print-Electronic en
dc.language eng en
dc.relation.ispartofseries Bioresource technology en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.subject Water en
dc.subject Analysis of Variance en
dc.subject Regression Analysis en
dc.subject Biotechnology en
dc.subject Cities en
dc.subject Sewage en
dc.subject Fermentation en
dc.subject Oxidation-Reduction en
dc.subject Catalysis en
dc.subject New Zealand en
dc.title Relative influence of process variables during non-catalytic wet oxidation of municipal sludge. en
dc.type Journal Article en
dc.identifier.doi 10.1016/j.biortech.2013.08.160 en
pubs.begin-page 605 en
pubs.volume 148 en
dc.rights.holder Copyright: The author en
dc.identifier.pmid 24055004 en
pubs.end-page 610 en
pubs.publication-status Published en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Research Support, Non-U.S. Gov't en
pubs.subtype Journal Article en
pubs.elements-id 427119 en
pubs.org-id Engineering en
pubs.org-id Chemical and Materials Eng en
dc.identifier.eissn 1873-2976 en
pubs.record-created-at-source-date 2013-10-14 en
pubs.dimensions-id 24055004 en


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