Effect of different flocculants on short-term performance of submerged membrane bioreactor

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dc.contributor.author Guo, Wenshan en_US
dc.contributor.author Vigneswaran, Saravanamuth en_US
dc.contributor.author Dharmawan, Fonny en_US
dc.contributor.author Aryal, Rupak en_US
dc.contributor.author Ngo, Huu Hao en_US
dc.contributor.author Nguyen, Vinh en_US
dc.contributor.editor en_US
dc.date.accessioned 2010-05-28T09:43:33Z
dc.date.available 2010-05-28T09:43:33Z
dc.date.issued 2009 en_US
dc.identifier 2008008693 en_US
dc.identifier.citation Guo Wenshan et al. 2009, 'Effect of different flocculants on short-term performance of submerged membrane bioreactor', Elsevier Inc, vol. 70, no. 3, pp. 274-279. en_US
dc.identifier.issn 1383-5866 en_US
dc.identifier.other C1 en_US
dc.identifier.uri http://hdl.handle.net/10453/8499
dc.description.abstract This study aims at evaluating the impacts of flocculant addition to a submerged membrane bioreactor (SMBR). Three types of common flocculants (FeCl3, PACl and chitosan) were tested based on the performance of organic and nutrients removal, respiration test and fouling control. The data showed that all of the flocculants not only could keep high removal efficiencies of DOC and COD (>90%) compared to SMBR alone, but also exhibited different advantages and disadvantages according to the properties of the flocculants. For instance, inorganic flocculants strongly affected the nitrification process and organic flocculant addition slightly reduced the phosphorus removal efficiency in SMBR. After adding FeCl3 and PACl, NH4-N removal decreased to 31.9% and 11.1%, while T-N removal dropped to 22% and 0.5% respectively. Although flocculants addition improved sludge settleability and oxygen transfer to some extent, organic flocculant obtained more stable sludge volume indexes (SVI) and specific oxygen uptake rates (SOUR) than those of inorganic flocculants. Inorganic flocculants, on the other hand, led to more reduction of soluble microbial products (SMP) present in mixed liquor and lower membrane fouling rates (1.3 and 2.6 kPa/day for FeCl3 and PACl respectively). en_US
dc.language en_US
dc.publisher Elsevier Inc en_US
dc.relation.hasversion Accepted manuscript version en_US
dc.relation.isbasedon http://dx.doi.org/10.1016/j.seppur.2009.10.003 en_US
dc.rights NOTICE: this is the author’s version of a work that was accepted for publication in Separation and Purification Technology. 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 Separation and Purification Technology, VOL. 70, ISSUE 3, (2009) DOI: http://dx.doi.org/10.1016/j.seppur.2009.10.003 en_US
dc.title Effect of different flocculants on short-term performance of submerged membrane bioreactor en_US
dc.parent Separation and Purification Technology en_US
dc.journal.volume 70 en_US
dc.journal.number 3 en_US
dc.publocation USA en_US
dc.identifier.startpage 274 en_US
dc.identifier.endpage 279 en_US
dc.cauo.name FEIT.School of Elec, Mech and Mechatronic Systems en_US
dc.conference Verified OK en_US
dc.for 030100 en_US
dc.personcode 010955 en_US
dc.personcode 890265 en_US
dc.personcode 900451 en_US
dc.personcode 104234 en_US
dc.personcode 030428 en_US
dc.personcode 102884 en_US
dc.percentage 100 en_US
dc.classification.name Chemical Engineering en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity en_US
dc.description.keywords Submerged membrane bioreactor (SMBR); Flocculant; Specific oxygen uptake rate (SOUR); Nutrients removal; Critical flux en_US
dc.staffid en_US
dc.staffid 102884 en_US


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