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Title: Performance of an ultra-compact biofilm reactor treating domestic and synthetic wastewaters
Authors: Koh, L.C.
Zhang, H.
Nguyen, T.T.H.
Ong, S.L. 
Keywords: Airlift
Issue Date: 2012
Citation: Koh, L.C., Zhang, H., Nguyen, T.T.H., Ong, S.L. (2012). Performance of an ultra-compact biofilm reactor treating domestic and synthetic wastewaters. Water Science and Technology 65 (3) : 484-489. ScholarBank@NUS Repository.
Abstract: The performance of an ultra-compact biofilm reactor (UCBR) treating domestic wastewater (DWW) collected from a local water reclamation plant; and gradually shifting to a mono-type carbon source synthetic wastewater (SWW) combined with DDW (CWW) and finally SWW; was investigated in this study. The total COD concentrations of influent DWW and CWW/SWW were 413.6±80.8 mg/L and 454.9 ± 51.3 mg/L, respectively. The UCBR was able to achieve average total COD removal efficiencies of 70 ± 10% and 80 ± 4% for DWW and SWW respectively. The total COD concentrations of the effluent of DWW and CWW/SWW were 122.5 ± 44.4 mg/L and 89.7 ± 10.3 mg/L, respectively. These observations suggested that heterotrophs in the UCBR system were able to better assimilate and remove carbon of mono-type SWW compared to diverse carbon sources such as DWW; although the influent soluble COD concentrations of the SWW were higher than those of the DWW. However, the effluent NH 4 +-N concentrations for both types of wastewater were rather similar,
Source Title: Water Science and Technology
ISSN: 02731223
DOI: 10.2166/wst.2012.877
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