Browsing Ong Soon An, Assoc. Prof. Dr. by Author "Tadashi, Hano"
Now showing items 1-9 of 9
-
The behavior of Ni(II), Cr(III), and Zn(II) in biological wastewater treatment process
Ong, Soon An; Eiichi, Toorisaka; Makoto, Hirata; Tadashi, Hano (John Wiley and Sons Ltd, 2005-06)The purpose of this research was to investigate the effects of Ni(II), Cr(III), and Zn(II) on the treatment performance of sequencing batch reactor (SBR) system. The kinetics of adsorption study showed that the pseudo ... -
Biodegradation of redox dye Methylene Blue by up-flow anaerobic sludge blanket reactor
Ong, Soon An; Eiichi, Toorisaka; Makoto, Hirata; Tadashi, Hano (Elsevier B.V., 2005-09-30)The objective of this study is to evaluate the decolorization of Methylene Blue (MB) by an up-flow anaerobic sludge blanket (UASB) reactor. The UASB reactor was operated under batch condition with total treatment volume ... -
Decolorization of azo dye (Orange II) in a sequential UASB-SBR system
Ong, Soon An; Eiichi, Toorisaka; Makoto, Hirata; Tadashi, Hano (Elsevier B.V., 2005-04)The combination of up-flow anaerobic sludge blanket (UASB) and sequencing batch reactor was chosen as an anaerobic and aerobic system, respectively, in the treatment of Orange II-containing wastewater. The Orange II and ... -
Decolorization of Orange II using an anaerobic sequencing batch reactor with and without co-substrates
Ong, Soon An, Dr.; Eiichi, Toorisaka; Makoto, Hirata; Tadashi, Hano (The Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, 2012-02)We investigated the decolorization of Orange II with and without the addition of co-substrates and nutrients under an anaerobic sequencing batch reactor (ASBR). The increase in COD concentrations from 900 to 1750 to 3730 ... -
Effects of Cu(II) and Cd(II) on the performance of sequencing batch reactor treatment system
Ong, Soon An; Lim, Poh Eng; Seng, Chye Eng; Makoto, Hirata; Tadashi, Hano (Elsevier B.V., 2005-01)The effects of Cu(II) and Cd(II)-containing wastewater on activated sludge microorganisms were investigated. The addition of Cu(II) and Cd(II) affected significantly the activities of activated sludge microorganisms in the ... -
Effects of nickel(II) addition on the activity of activated sludge microorganisms and activated sludge process
Ong, Soon An; Eiichi, Toorisaka; Makoto, Hirata; Tadashi, Hano (Elsevier B.V., 2004-09-10)The effects of Ni(II) in a synthetic wastewater on the activity of activated sludge microorganisms and sequencing batch reactor (SBR) treatment process were investigated. Two parallel lab-scale SBR systems were operated. ... -
Studies on adsorption and biodegradation of chromiumcontaining wastewater by laboratory-scale sequencing batch reactor-powdered activated carbon system
Ong, Soon An; Eiichi, Toorisaka; Makoto, Hirata; Tadashi, Hano (Gh. Asachi Technical University of IASI, 2011-10)The study involved investigating the effects of Cr(III) and the efficacy of powdered activated carbon (PAC) in reducing the inhibitory effects of Cr(III) on activated sludge under sequencing batch reactor (SBR) operation. ... -
Treatment of azo dye Orange II in a sequential anaerobic and aerobic-sequencing batch ractor system
Ong, Soon An; Eiichi, Toorisaka; Makoto, Hirata; Tadashi, Hano (Springer Verlag, 2005-04)We studied the biodegradation of Orange II in a sequential anaerobic and aerobic-sequencing batch reactor system. Granular activated carbon was used either packed into a column or added directly into the anaerobic reactor ... -
Treatment of azo dye Orange II in aerobic and anaerobic-SBR systems
Ong, Soon An; Eiichi, Toorisaka; Makoto, Hirata; Tadashi, Hano (Elsevier, 2005-07)The performance of aerobic- and anaerobic-SBR in treating Orange II-containing wastewater was investigated. The result from a specific oxygen uptake rate (SOUR) study showed that the Orange II compound did not exert ...