Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/53907
Title: A bio-oxidation study of methanol synthetic wastewater using the SBR
Authors: Koh, W.K.
Ng, W.J. 
Ong, S.L. 
Issue Date: 1989
Source: Koh, W.K.,Ng, W.J.,Ong, S.L. (1989). A bio-oxidation study of methanol synthetic wastewater using the SBR. Biological Wastes 27 (2) : 101-113. ScholarBank@NUS Repository.
Abstract: Bio-oxidation and biomass generation in a laboratory-scale sequencing batch reactor (SBR) were investigated. This paper presents the results obtained from an SBR treating a synthetic wastewater used to simulate a pharmaceutical wastewater. Nutrient removal and biokinetics of the SBR process, as well as dissolved oxygen and pH variations during bio-oxidation, were discussed. COD and BOD removal efficiencies were good. System stability was achieved within 2 weeks of each change of feed strength. The 48-h cycle adopted was found to be sufficient to force the biomass into endogenous respiration, hence controlling the excess biomass formed through assimilation of the feed's organic carbon. Although the ammonia-nitrogen level in the feed was high, nitrification was not observed. Track monitoring of DO and pH was found to provide good indications of the completion of bio-oxidation.
Source Title: Biological Wastes
URI: http://scholarbank.nus.edu.sg/handle/10635/53907
ISSN: 02697483
Appears in Collections:Staff Publications

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