Effect of full and partial-bed configuration on carbon removal performance of biological aerated filters

Bibliographische Detailangaben
Veröffentlicht in:	Water science and technology : a journal of the International Association on Water Pollution Research. - 1986. - 58(2008), 5 vom: 29., Seite 977-83
1. Verfasser:	Suja, Fatihah (VerfasserIn)
Weitere Verfasser:	Donnelly, Tom
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2008
Zugriff auf das übergeordnete Werk:	Water science and technology : a journal of the International Association on Water Pollution Research
Schlagworte:	Journal Article Carbon 7440-44-0

Beschreibung
Zusammenfassung:	Copyright IWA Publishing 2008. A comparative study to explore the characteristics of partially and fully packed biological aerated filters (BAFs) in the removal of carbon pollutant, reveals that the partial-bed reactor can perform comparably well with the full-bed reactor. The organic removal rate was 5.34 kg COD m(-3) d(-1) at Organic Loading Rates (OLR) 5.80+/-0.31 kg COD m(-3) d(-1) for the full-bed, and 5.22 kg COD m(-3) d(-1) at OLR 5.79+/-0.29 kg COD m(-3) d(-1) for the partial-bed. In the partial-bed system, where the masses of biomass were only 41-51% of those of the full-bed, the maximum carbon removal limit was still between 5 to 6 kg COD m(-3) d(-1). At organic loadings above 5.0 kg COD m(-3) d(-1), the carbon removal capacity in both systems was limited by the mass and activity of microorganisms. The SRT in the full and partial-bed reactors was primarily controlled by the biomass loss in the effluent and during backwash operation. The SRT was reduced from 20.08 days at OLR 4.18+/-0.20 kg COD m(-3) d(-1) to 7.62 days at OLR 5.80+/-0.31 kg COD m(-3) d(-1) in the full-bed, and from 7.17 days to 4.21 days in the partial-bed. After all, SRT values in the partial-bed were always lower than those in the full-bed
Beschreibung:	Date Completed 03.12.2008 Date Revised 30.09.2008 published: Print Citation Status MEDLINE
ISSN:	0273-1223
DOI:	10.2166/wst.2008.454