Browsing School of Environmental Engineering (Articles) by Title
Now showing items 94-113 of 129
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Photocatalytic degradation of reactive black 5 by fish scale-loaded TiO 2 composites
(Springer Science+Business Media B.V., 2012-09)Titania and TiO 2/fish scale composites at different mass ratios (90:10, 70:30, and 50:50) were prepared by sol-gel method for application as photocatalysts in this study. Fish scale, synthesized TiO 2, and TiO 2/fish scale ... -
Photocatalytic mineralization of azo dye Acid Orange 7 under solar light irradiation
(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 ... -
Physicochemical properties of pyrolitic carbon black from waste tyres
(Trans Tech Publications, 2014)Waste tyres which are mainly generated from automotive industries have become a major environmental problem to the local authorities, the tyre industries and tyre dealer. When tyres are no longer usable due to worn-out, ... -
Processing and characterization of calcined kaolin cement powder
(Elsevier Ltd, 2012-05)Abstract This paper aimed at investigating the possibility of calcined kaolin to produce cement powder that could be an alternative to Portland cement by applying geopolymerization process. Cement paste was firstly made ... -
The processing, characterization, and properties of fly ash based geopolymer concrete
(Advanced Study Center Co. Ltd, 2012)In recent years, attempts to increase the utilization of fly ash as a replacement for ordinary Portland cement (OPC) in concrete have increased in significance. Geopolymer concrete does not need the presence of Portland ... -
Production of bioflocculant by staphylococcus cohnii ssp. from Palm Oil Mill Effluent (POME)
(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 ... -
Production of methane gas from organic fraction municipal solid waste (OFMSW) via anaerobic process: Application methodology for the Malaysian condition
(Inderscience Enterprises Ltd, 2013)Solid waste management in Malaysia is confronted with many problems, including low collection coverage, irregular collection services, inadequate equipment used for waste collection, crude open dumping and burning without ... -
Properties of lightweight concrete composites with mixture of fly ash and concrete sludge aggregate
(Trans Tech Publications, 2014)Lightweight foamed concrete is a concrete made by cement slurry mixed with foam so that foamed concrete that is much lighter than conventional concrete can be produced. The objectives of this study is to develop optimal ... -
Properties of metakaolin geopolymeric binder
(American Scientific Publishers, 2013-01)This paper investigates the physical and mechanical properties as well as the morphology study of the MK geopolymeric binder. Mixture of waterglass liquid and NaOH solution were used as the activator solution for the ... -
Removal of chromium (VI) from aqueous solution using treated oil palm fibre
(Elsevier B.V, 2007-07-17)This study proposed an oil palm by-product as a low-cost adsorbent for the removal of hexavalent chromium [Cr (VI)] from aqueous solution. Adsorption of Cr (VI) by sulphuric acid and heat-treated oil palm fibre was conducted ... -
Removal of colour from landfill by solar photocatalytic
(Asian Network for Scientific Information, 2010)This study was conducted to examine the percentage of colour removal using coagulation as pretreatment, followed by the effects of ZnO, pH, stirring time and solar photocatalytic as final treatment. The duration of ... -
Review on fly ash-based geopolymer concrete without Portland Cement
(Academic Journals, 2011-01)The consumption of Ordinary Portland Cement (OPC) caused pollution to the environment due to the emission of CO2. As such, alternative material had been introduced to replace OPC in the concrete. Fly ash is a by-product ... -
Review on the various ash from palm oil waste as geopolymer material
(Advanced Study Center Co. Ltd., 2013)The solid waste from palm oil mill industry has been increasing annually where it has been reported that the palm oil waste was produced 4 million tons/years in Malaysia only. Hence, the solution to overcome the problems ... -
Risk assessment study for storage explosive
(Science Publications, 2006)In Malaysia, there has been rapidly increasing usage in amount of explosives due to widely expansion in quarrying and mining industries. The explosives are usually stored in the storage where the safety precaution had given ... -
The role of sodium surface species on electrochemical promotion of catalysis in a Pt/YSZ system: The case of ethylene oxidation
(Elsevier Inc., 2013-07)The role of sodium addition as foreign (impurity) species on the electrochemical promotion of ethylene oxidation in a Pt/YSZ system was investigated. It was found that the presence of sodium surface species on the catalyst ... -
Roles of imputation methods for filling the missing values: A review
(AENSI Publisher All rights reserved, 2013-10)Missing data are often encountered in many areas of research. Complete case analysis and indicator method can lead to serious bias. One of the comforting methods is implementation of imputation methods. The main purpose ... -
Solar photocatalytic degradation of mono azo methyl orange and diazo reactive green 19 in single and binary dye solutions: Adsorbability vs photodegradation rate
(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
(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 ... -
Strength and microstructural properties of mechanically-activated kaolin geopolymers
(Trans Tech Publications, 2012-12)Kaolin geopolymers exhibit low strength properties due to its plate-like nature which contribute to smaller surface area for geopolymerization reactions. Layered kaolin structure only allows very little, if any, substitution ... -
Strength of concrete based cement using recycle ceramic waste as aggregate
(Trans Tech Publications, 2013)The main focus of this research is to study the strength of concrete with ceramic waste as coarse aggregate. The sources of ceramic waste are obtained from the industrial in Malaysia. Presently, in ceramics industries the ...