The effect of shock loads on SAF bioreactors for sewage treatment works

Hu, Burong; Wheatley, Andrew D.; Ishtchenko, V. V.; Huddersman, Katherine

doi:10.1016/j.cej.2010.10.005

Cited by 23 publications

(12 citation statements)

References 14 publications

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“…This may assist treatment if the polar lithium tracer mimics the behaviour of recalcitrant organics. This was the subject of further work reported in the second paper (Hu et al 2010). Waste wool therefore could be suitable as a sacrificial biofilm support medium for the tertiary treatment of sewage with advantage for the adsorption, retention and biodegradation recalcitrant solids or organics.…”

Section: Discussionmentioning

confidence: 97%

“…Both reactors exhibited stable performance the standard deviation in the wool effluent SS was 3.66, for Kaldnes 14.11. Turbidity was also monitored (more sensitive to smaller particle sizes) for evidence of the impact of the breakdown of the wool (Hu 2008) but with similar results to the SS (wool effluent 1.0 SD 0.6 Kaldnes 2.1 SD 1.5 NTU).…”

Section: Ss Removalmentioning

confidence: 99%

“…This paper reports on a comparison of the performance of the SAF bioreactors with conventional PE media (Kaldnes) and wool for the aerobic treatment of synthetic domestic wastewater. The work was part of a thesis (Hu 2008) which also reported on the comparative performance of the two SAF for oestrogen removals.…”

Section: Introductionmentioning

confidence: 99%

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

Wheatley

Ishtchenko

et al. 2011

Appl Microbiol Biotechnol

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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/m(3)/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.

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Section: Discussionmentioning

confidence: 97%

Section: Ss Removalmentioning

confidence: 99%

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

Wheatley

Ishtchenko

et al. 2011

Appl Microbiol Biotechnol

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“…In this investigation, the recipe for synthetic domestic wastewater encompassed three different ingredients [23]. Fig.…”

Section: Floc Size Distribution In Synthetic Domestic Wastewatermentioning

confidence: 99%

“…The synthetic domestic wastewater recipe followed recently published guidelines [23], using kaolin to simulate total suspended solids (TSS; Tab. 1).…”

Section: Sample Preparationmentioning

confidence: 99%

Impact of Sludge Floc Size and Water Composition on Dewaterability

et al. 2014

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In order to observe the impact of different water compositions on sludge dewaterability, assessments of floc sizes using a particle size analyzer and of sludge dewaterability based on the capillary suction time (CST) test were carried out. Synthetic raw water had small floc sizes, and synthetic domestic wastewater had both larger median floc sizes and a better correlation between sludge dewaterability and median floc sizes. The floc size distribution results showed that synthetic raw water is associated with a narrow particle size distribution. In comparison, synthetic domestic wastewater produced a wider distribution. However, the CST values were similar for both waters. Compared to synthetic wastewater, natural wastewater had the largest distribution with generally larger particle sizes.

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The Performance of SAF with Novel Media on Oestrogen Removal

Wheatley

Yang

2011

Advances in Computer Science, Intelligent System and Environment

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The effect of shock loads on SAF bioreactors for sewage treatment works

Cited by 23 publications

References 14 publications

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

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

Impact of Sludge Floc Size and Water Composition on Dewaterability

The Performance of SAF with Novel Media on Oestrogen Removal

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