Browsing Journal Articles by Author "yswong@unimap.edu.my"
Now showing items 1-11 of 11
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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 ... -
Biological kinetics evaluation of anaerobic stabilization pond treatment of palm oil mill effluent
Wong, Yee Shian; Mohd Omar, A.B. Kadir; Tjoon, Tow Teng (Elsevier Ltd., 2009-11-21)Biological kinetic (bio-kinetic) study of the anaerobic stabilization pond treatment of palm oil mill effluent (POME) was carried out in a laboratory anaerobic bench scale reactor (ABSR). The reactor was operated at different ... -
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 ... -
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 ... -
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 ... -
Production of bioflocculant by staphylococcus cohnii ssp. from Palm Oil Mill Effluent (POME)
Wong, Yee Shian; Ong, Soon An, Dr.; Teng, Tjoon Tow; Nabilah Aminah, Lutpi; Kumaran, Kasthuri (Springer Science+Business Media B.V., 2012-09)Staphylococcus cohnii ssp. was found to produce a bioflocculant with high flocculating activity for kaolin suspension. Using optimized culture conditions, a flocculating activity of 70.3 % at a bioflocculation concentration ... -
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 ... -
Sorption of methylene blue and acid orange 7 onto ananas comosus peels and leaves based activated carbon
Nabilah Aminah, Lutpi; Nurul Najiha, Jamil; Che Ku Kairulazam, Che Ku Abdullah; Wong, Yee Shian; Ong, Soon An, Dr.; Tengku Nuraiti, Tengku Izhar (Trans Tech Publications, 2013)The adsorption of Methylene Blue (MB) and Acid Orange 7 (AO7) dye onto Ananas Comosus Mixed Peels and Leaves (ACMPL) were carried out by conducting four different parameters such as initial concentration, pH, dosage of ...