Performance linked to residence time distribution by a novel wool-based bioreactor for tertiary sewage treatment

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dc.contributor.author Hu, Bibo en
dc.contributor.author Wheatley, Andrew en
dc.contributor.author Ishchenko, Vera en
dc.contributor.author Huddersman, Katherine en
dc.date.accessioned 2012-04-03T11:34:14Z
dc.date.available 2012-04-03T11:34:14Z
dc.date.issued 2011
dc.identifier.citation Hu, B., Wheatley, A., Ishchenko, V. and Huddersman, K. (2011) Performance linked to residence time distribution by a novel wool-based bioreactor for tertiary sewage treatment. Journal of Applied Microbiology and Biotechnology, 94 (3) pp. 817-828 en
dc.identifier.issn 0175-7598
dc.identifier.uri http://hdl.handle.net/2086/5870
dc.description.abstract Laboratory-scale experiments were carried out using up-flow 7 L Submerged Aerated Filter reactors packed with wool fibre or commercial plastic pall rings, Kaldnes, (70% by volume) support media for the tertiary treatment of sewage. The performance of the wool bioreactor was more consistent than that with Kaldnes medium, for both TOC removal (93%) and SS removal (90%). Both plastic and wool-packed bioreactors achieved complete nitrification at the load of about 0.4 kgCOD/m3/day. The sludge yield of the wool bioreactor was almost half that of the bioreactor with Kaldnes suggesting that wool could retain residual organics and particulates. The wool however was degraded and it was concluded that wool would have to be considered as additional sacrificial adsorption capacity rather than an alternative medium. The performance was linked to the residence time distribution studies and these changes in the wool structure. Biomass growth increased the retention of the tracer in the wool reactor by, it was suggested, exposing a greater surface area. Results from the plastic media on the other hand showed increased mixing possibly by increasing the mobility of the plastic. Aeration increased the mixing in both reactors, and patterns were in all cases predominantly well-mixed. en
dc.language.iso en en
dc.publisher Springer en
dc.subject submerged aerated filter en
dc.subject bioreactor en
dc.subject wool en
dc.subject biofilm en
dc.subject residence time distribution en
dc.subject wastewater treatment en
dc.title Performance linked to residence time distribution by a novel wool-based bioreactor for tertiary sewage treatment en
dc.type Article en
dc.identifier.doi http://dx.doi.org/10.1007/s00253-011-3659-7
dc.researchgroup Chemistry for Health
dc.peerreviewed Yes en
dc.ref2014.selected 1366964034_ 8910680003320_15_2


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