Browsing Wong Yee Shian, Assoc. Prof. Ts. Dr. by Author "lnho@unimap.edu.my"
Now showing items 1-10 of 10
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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. ... -
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 ... -
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 ... -
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 ... -
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 degradation of binary azo dyes solution by using titanium oxide suspensions
Ohm Mar Min; Ong, Soon An, Dr; Wong, Yee Shian; Tengku Nuraiti, Tengku Izhar, Dr.; Ho, Li Ngee, Dr. (Universiti Malaysia Perlis (UniMAP), 2012-06-18)Photocatalytic degradation of binary Acid Orange 7 (AO7) and Reactive Green 19 (RG19) under sunlight irradiation in titanium oxide (TiO2) suspensions was investigated. The objectives of this study is to evaluate the ... -
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 ... -
Solar photocatalytic degradation of mono azo methyl orange and diazo reactive green 19 in single and binary dye solutions: Adsorbability vs photodegradation rate
Ong, Soon An, Dr.; Ohm, Mar Min; Ho, Li Ngee, Dr.; Wong, Yee Shian (Springer-Verlag Berlin Heidelberg, 2013-05)The objective of this study was to examine the effects of adsorbability and number of sulfonate group on solar photocatalytic degradation of mono azo methyl orange (MO) and diazo Reactive Green 19 (RG19) in single and ...