Browsing Ong Soon An, Assoc. Prof. Dr. by Author "saong@unimap.edu.my"
Now showing items 1-20 of 25
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Adsorption behavior of cationic and anionic dyes onto acid treated coconut coir
Ong, Soon An, Dr.; Ho, Li Ngee, Dr.; Wong, Yee Shian; Asraff, Zainuddin (Taylor and Francis Group, LLC., 2013-09)The adsorption of Methylene Blue (MB) and Acid Orange 7 (AO7) from aqueous solutions by acid treated coconut coir was investigated under laboratory conditions to assess its potential in removing cationic and anionic dyes. ... -
Adsorption efficiency of garcinia mangostana linn. (GML) shells based activated carbon
Nabilah Aminah, Lutpi; W. Fadhilah, W. M. Khalik; Che Ku Kairulazam, Che Ku Abdullah; Wong, Yee Shian; Ong, Soon An, Dr.; Tengku Nuraiti, Tengku Izhar (Trans Tech Publications, 2013)The objective of this study is to investigate the adsorption efficiency of Garcinia Mangostana Linn. (GML) shells based activated carbon using two synthetic dyes which are methylene blue and acid orange 7. The parameters ... -
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 ... -
Comparative study on photocatalytic degradation of mono azo dye acid orange 7 and methyl orange under solar light irradiation
Ong, Soon An, Dr.; Ohm, Mar Min; Ho, Li Ngee, Dr.; Wong, Yee Shian (Springer Science+Business Media B.V., 2012-09)The objective of this study was to investigate and compare the kinetic photocatalytic degradation of mono azo dyes Acid Orange 7 (AO7) and Methyl Orange (MO) under solar light irradiation with titanium dioxide (TiO 2) as ... -
Comparison on biodegradation of anionic dye orange II and cationic dye methylene blue by immobilized microorganisms on spent granular activated carbon
Ong, Soon An, Dr.; Ho, Li Ngee, Dr.; Wong, Yee Shian (Taylor & Francis Online, 2014-01)Activated carbon adsorption and biological degradation are two important methods used in the treatment of industrial wastewater among others. The objective of this study is to investigate the biodegradation of anionic dye ... -
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 methyl orange using upflow anaerobic sludge blanket (UASB) reactor-An investigation of co-substrate and dye degradation kinetics
Viswanathan, Murali; Ong, Soon An, Dr.; Ho, Li Ngee, Dr.; Wong, Yee Shian (Taylor & Francis, 2013)Decolorization of a synthetic wastewater containing Methyl Orange (MO) azo dye was performed in an upflow anaerobic sludge blanket (UASB) reactor. Color removal efficiencies approaching 94, 90 and 96% were obtained with ... -
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 adsorbents and copper(II) on activated sludge microorganisms and sequencing batch reactor treatment process
Ong, Soon An; Lim, Poh Eng; Seng, Chye Eng (Elsevier B.V., 2003-10-31)Wastewater treatment systems employing simultaneous adsorption and biodegradation processes have proven to be effective in treating toxic pollutants present in industrial wastewater. The objective of this study is to ... -
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. ... -
Evaluation of integrated anaerobic-aerobic biofilm reactor for degradation of azo dye methyl orange
Viswanathan, Murali; Ong, Soon An, Dr.; Ho, Li Ngee, Dr.; Wong, Yee Shian (Elsevier Ltd., 2013-09)This study was to investigate the mineralization of wastewater containing methyl orange (MO) in integrated anaerobic-aerobic biofilm reactor with coconut fiber as bio-material. Different aeration periods (3. h in phase 1 ... -
Heavy metals and adsorbents effects on activated sludge microorganisms
Ong, Soon An; Lim, Poh Eng; Seng, Chye Eng (Wiley-VCH Verlag, 2004-01)The sorption of Cu(II) and Cd(II) from synthetic solution by powdered activated carbon (PAC), biomass, rice husk (RH) and activated rice husk (ARH) were investigate under batch conditions. After activated by concentrated ... -
Methane gas production from palm oil wastewater - An anaerobic methanogenic degradation process in continuous stirrer suspended closed anaerobic reactor
Wong, Yee Shian; Teng, Tjoon Tow, Prof.; Ong, Soon An, Dr.; Norhashimah, Morad, Dr.; Mohd Rafatullah, Lari; Leong, Jing Yong (Elsevier, 2014-05)Methane gas (CH4) production from the anaerobic methanogenesis degradation of palm oil wastewater was carried out in laboratory continuous stirrer suspended closed anaerobic reactor (SCAR) at mesophilic temperature of 35 ... -
Mineralization of diazo dye (Reactive Black 5) in wastewater using recirculated up-flow constructed wetland reactor
Ong, Soon An, Dr.; Ho, Li Ngee, Dr.; Wong, Yee Shian; Chen, Siaw Fun; Viswanathan, Murali; Rohazita, Bahari (Desalination Publications, 2012)Application of a sequential anaerobic and aerobic process in a constructed wetland can enhance the treatment performance of textile wastewater. In this study, two laboratory-scale recirculated up-flow constructed wetland ... -
Mineralization of Methyl Orange-containing wastewater by integrated anaerobic and aerobic processes using spent granular activated carbon-biofilm under sequencing batch reactor operation
Ong, Soon An, Dr.; Ho, Li Ngee, Dr.; Wong, Yee Shian; Raman, Komalathevi; Rohazita, Bahari (Taylor & Francis, 2013)Mineralization of azo dye required combination of anaerobic and aerobic processes either in two stages or single stage of treatment. The aim of the present study was to evaluate the treatment performance in the decolorization ... -
Performance and kinetic study on bioremediation of diazo dye (reactive black 5) in wastewater using spent GAC-biofilm sequencing batch reactor
Ong, Soon An, Dr.; Ho, Li Ngee, Dr.; Wong, Yee Shian; Komalathevi, Raman (Springer Science+Business Media B.V., 2012-05)Combinations of sequential anaerobic and aerobic process enhance the treatment of textile wastewater. The aim of this study was to investigate the treatment of diazo dye Reactive Black 5 (RB5)- containing wastewater using ... -
Photocatalytic mineralization of azo dye Acid Orange 7 under solar light irradiation
Ong, Soon An, Dr.; Ho, Li Ngee, Dr.; Wong, Yee Shian; Ohm, Mar Min; Lai, Li Sze; Khiew, Siee Kung; Viswanathan, Murali (Desalination Publications, 2012)The objective of this study was to investigate mineralization of hazardous water soluble azo dye Acid Orange 7 (AO7) under photocatalytic process. In this experiment, sunlight was used as the source for UV irradiation and ... -
Phytoremediation of industrial effluent containing azo dye by model up-flow constructed wetland
Ong, Soon An; Katsuhiro, Uchiyama; Daisuke, Inadama; Yuji, Ishida; Kazuaki, Yamagiwa (Elsevier B.V., 2009-02)This study assessed the treatment of azo dye Acid Orange 7 (AO7) containing wastewater by laboratory-scale up-flow constructed wetland (UFCW) with and without supplementary aeration. The supplementary aeration could ...