Phosphate recovery from hydrothermally treated sewage sludge using struvite precipitation

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dc.contributor.author Munir, Muhammad en
dc.contributor.author Li, Bing en
dc.contributor.author Boiarkina, Irina en
dc.contributor.author Baroutian, Saeid en
dc.contributor.author Yu, Wei en
dc.contributor.author Young, Brent en
dc.date.accessioned 2017-08-02T02:37:49Z en
dc.date.issued 2017-09 en
dc.identifier.citation Bioresource Technology 239:171-179 Sep 2017 en
dc.identifier.issn 0960-8524 en
dc.identifier.uri http://hdl.handle.net/2292/34692 en
dc.description.abstract New technologies are needed to recover phosphate from organic wastes, such as sewage sludge. Sewage sludge can be hydrothermally treated to make it safe but this process is expensive. Recovering a valuable by-product, such as phosphate, could improve the economics of hydrothermal treatment. Therefore, the technical and preliminary differential cost analysis of combining hydrothermal treatment with phosphate recovery (by precipitation of magnesium ammonium phosphate (struvite)) was investigated. The effects of pH, magnesium ion dose, and either wet oxidation or thermal hydrolysis hydrothermal treatment were examined. Phosphate recovery was more sensitive to pH than magnesium ion concentration, with diminishing rates of recovery at high levels of both. Also, more struvite was recovered following wet oxidation treatment than thermal hydrolysis. Preliminary differential cost analysis showed that wet oxidation combined with precipitation at an optimal pH and magnesium ion dose could generate revenue. en
dc.publisher Elsevier BV 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. Details obtained from http://www.sherpa.ac.uk/romeo/issn/0960-8524/ en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/ en
dc.title Phosphate recovery from hydrothermally treated sewage sludge using struvite precipitation en
dc.type Journal Article en
dc.identifier.doi 10.1016/j.biortech.2017.04.129 en
pubs.begin-page 171 en
pubs.volume 239 en
dc.description.version AM - Accepted Manuscript en
dc.rights.holder Copyright: Elsevier BV en
dc.identifier.pmid 28521226 en
pubs.end-page 179 en
dc.rights.accessrights http://purl.org/eprint/accessRights/OpenAccess en
pubs.subtype Article en
pubs.elements-id 626191 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 2017-05-18 en
pubs.online-publication-date 2017-05-04 en
pubs.dimensions-id 28521226 en


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