Please use this identifier to cite or link to this item: https://doi.org/10.1061/(ASCE)0733-9372(2002)128:4(387)
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dc.titleGranulation enhancement in anaerobic sequencing batch reactor operation
dc.contributor.authorOng, S.L.
dc.contributor.authorHu, J.Y.
dc.contributor.authorNg, W.J.
dc.contributor.authorLu, Z.R.
dc.date.accessioned2014-06-17T08:19:11Z
dc.date.available2014-06-17T08:19:11Z
dc.date.issued2002-04
dc.identifier.citationOng, S.L., Hu, J.Y., Ng, W.J., Lu, Z.R. (2002-04). Granulation enhancement in anaerobic sequencing batch reactor operation. Journal of Environmental Engineering 128 (4) : 387-390. ScholarBank@NUS Repository. https://doi.org/10.1061/(ASCE)0733-9372(2002)128:4(387)
dc.identifier.issn07339372
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/65655
dc.description.abstractTwo laboratory-scale anaerobic sequencing batch reactors (anSBRs) were used to investigate the effectiveness of polymer addition for enhancing granulation. Mixed liquor volatile suspended solids (MLVSS) concentrations in R1 (with a polymer supplement) and R2 (control) were maintained at approximately 5 g/L. Granule development was measured by determination of the average bioparticle diameter of biosolids from the anSBRs. Addition of cationic polymer to R1 started on the 47th day after reactor start-up at a dosage of 1 ppm (on reactor volume) once per every two cycles. The cationic polymer had a beneficial effect on granulation. Compared to the control, it shortened the granulation process by approximately four months. Within the range investigated, food-to-microorganism (F/M) ratios at 0.5-0.6 g COD/g VSS d were also beneficial to granulation. After 300 days operation (at F/M ratio 0.5 g COD/g VSS d), the average bioparticle diameter of R1 was 0.78 mm, while R2 was only 0.39 mm. R1, aside from having a larger granule size, also had a higher methane production and lower soluble COD in effluent at F/M ratio 0.6 g COD/g VSS d compared to R2.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1061/(ASCE)0733-9372(2002)128:4(387)
dc.sourceScopus
dc.subjectAnaerobic processes
dc.subjectPolymer
dc.subjectSequence batch reactor
dc.typeArticle
dc.contributor.departmentCIVIL ENGINEERING
dc.description.doi10.1061/(ASCE)0733-9372(2002)128:4(387)
dc.description.sourcetitleJournal of Environmental Engineering
dc.description.volume128
dc.description.issue4
dc.description.page387-390
dc.description.codenJOEED
dc.identifier.isiut000174958900014
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