Optimization study on sewage sludge conditioning using Moringa oleifera seeds

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dc.contributor.author Wai, Kien Tat en
dc.contributor.author Idris, A en
dc.contributor.author Noor, MJMM en
dc.contributor.author Mohamed, TA en
dc.contributor.author Ghazali, AH en
dc.contributor.author Muyibi, SA en
dc.date.accessioned 2016-11-16T03:19:12Z en
dc.date.issued 2010 en
dc.identifier.citation Desalination and Water Treatment, 2010, 16(1-3), pp. 402-410 en
dc.identifier.issn 1944-3994 en
dc.identifier.uri http://hdl.handle.net/2292/31056 en
dc.description.abstract Disposal of sewage sludge is a main problem faced by local municipalities in Malaysia. Sludge conditioned with chemical polymer often termed as undesirable use for land application. However, using natural polymer will help to reduce the impact of this problem. In this study, optimization using Moringa oleifera seeds as a natural polymer in sewage sludge conditioning is highlighted. An earlier sludge conditioning using jar test apparatus was conducted using Moringa oleifera seeds in three different forms; dry powder, distilled water extracted and salt extracted (1 N NaCl). Results from the study indicate that Moringa oleifera in distilled water extracted form shows the most optimum reduction in Capillary Suction Time (CST) value. Optimization of three important factors namely mixing speed, mixing duration and Moringa oleifera dosage for distilled water extracted form was done using Design of Experiments (DOE). Optimum values for the selected factors were obtained using Box-Behnken design, Response Surface Design Method (RSM). There was a total of seven set of optimized solutions produced. The best solution generated showed lowest CST and Specifi c Resistance to Filtration (SRF) was obtained at 4.5 s and 1.22 × 1011 m/kg respectively. These values were obtained under the optimum conditions of mixing speed at 100 rpm, mixing duration of 1 min and Moringa oleifera dosage of 4695 mg/L. The desirability index for the optimized solution was 1.000. en
dc.description.uri http://www.tandfonline.com/toc/tdwt20/current en
dc.publisher Taylor & Francis en
dc.relation.ispartofseries Desalination and Water Treatment 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/1944-3994/ en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.title Optimization study on sewage sludge conditioning using Moringa oleifera seeds en
dc.type Journal Article en
dc.identifier.doi 10.5004/dwt.2010.1271 en
pubs.issue 1-3 en
pubs.begin-page 402 en
pubs.volume 16 en
dc.rights.holder Copyright: Taylor & Francis en
pubs.author-url http://www.tandfonline.com/doi/pdf/10.5004/dwt.2010.1271?needAccess=true en
pubs.end-page 410 en
pubs.publication-status Published en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Article en
pubs.elements-id 542106 en
dc.identifier.eissn 1944-3986 en
pubs.record-created-at-source-date 2016-09-30 en


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