Browsing Wong Yee Shian, Assoc. Prof. Ts. Dr. by Author "yswong@unimap.edu.my"
Now showing items 21-31 of 31
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Photocatalytic activity of zinc oxide (ZnO) synthesized through different methods
Nik Athirah, Yusoff; Ho, Li Ngee; Ong, Soon-An; Wong, Yee Shian; Wan Fadhilah, Khalik (Taylor and Francis Ltd., 2016-06)Derivatives of phenol are considered as part of the persistent organic pollutants with endocrine effects persist in the environment and resist to bio-degradation which is difficult to be degraded. The objective of this ... -
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 ... -
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 ... -
Semi-batch operated constructed wetlands planted with Phragmites australis for treatment of dyeing wastewater
Ong, Soon-An; Ho, Li Ngee; Wong, Yee Shian; Danny Leonard, Dugil; Hafizah, Samad (Taylor's University College, 2011-10)The objective of present study is to evaluate the using of constructed wetland under semi-batch operation for the treatment of azo dye Acid Orange 7 (AO7) containing wastewater. The emergent plant selected in our study was ... -
Simultaneous wastewater treatment and power generation with innovative design of an upflow membrane-less microbial fuel cell
Thung, Wei Eng; Ong, Soon-An; Ho, Li Ngee; Wong, Yee Shian; Oon, Yoong Ling; Oon, Yoong Sin; Harvinder Kaur, Lehl (Springer International Publishing, 2015-05-01)Abstract The objective of this study was to evaluate the performance of an upflow membrane-less microbial fuel cell (UFML MFC) with various types of carbon material as cathodes in power output and chemical oxygen demand ... -
Solar photocatalytic degradation of azo dye Reactive Black 5 in aqueous suspension of TiO2
Ong, Soon-An; Min, Ohm Mar; Ho, Li Ngee; Wong, Yee Shian; Fahmi Muhammad, Ridwan (IWA Publishing, 2011)Photocatalytic degradation of pollutants under solar light irradiation is an economically viable process and a very promising clean wastewater treatment technology. The aim of this study is to evaluate photocatalytic ... -
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 ... -
Start-up operation and hydraulic retention time selectivity for palm oil mill wastewater at mesophilic temperature in anaerobic suspended growth closed bioreactor
Wong, Yee Shian; Teng, Tjoon Tow; Ong, Soon-An; Norhashimah, Mamat; Mohd Rafatullah (Trans Tech Publications Inc., 2014)The start-up operation and hydraulic retention time (HRT) selectivity of anaerobic degradation for palm oil mill effluent (POME) wastewater was carried out in an anaerobic bioreactor. HRT between 35 and 5 days were ... -
Suspended growth kinetic analysis on biogas generation from newly isolated anaerobic bacterial communities for palm oil mill effluent at mesophilic temperature
Wong, Yee Shian; Teng, Tjoon Tow; Ong, Soon-An; Norhashimah, Morad; Mohd Rafatullah (Royal Society of Chemistry, 2014)The anaerobic degradation of palm oil mill effluent (POME) was carried out under mesophilic temperature in an anaerobic suspended growth closed bioreactor (ASGCB). Monod model was applied to describe the kinetic analysis ...