H. Kadhum
National University of Malaysia
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Publication
Featured researches published by H. Kadhum.
International Journal of Physical Sciences | 2012
Muneer M. Ba-Abbad; Abdul Amir; H. Kadhum; Ahmed A. Al-Amiery; Mohd Sobri Takriff
Photo catalytic degradation of chlorophenols in aqueous solution by ZnO nanoparticles under sunlight was investigated. The toxicity of chlorophenols was evaluated by agar plates technique with paper discs in the presence of Escherichia coli. The relative toxicity data of chlorophenols, before and after degradation, was used in comparing between them. The degree of toxicity was estimated by clear zone around each paper disc of chlorophenols. Results show toxicity of chlorophenols as PCP>TeCP>2,4,6TCP>2,4-DCP>2-CP before photocatalytic degradation. After degradation, no more toxicity was observed by clear zone around each paper disc. The toxicity test indicates that higher degradation of chlorophenols occurred by ZnO nanoparticles under sunlight as alternative method for treatment.
International Journal of Bioscience, Biochemistry and Bioinformatics | 2013
Ranjit K. Nath; M.F.M. Zain; Abdul Amir; H. Kadhum
By the carbonation process concrete construction absorbs carbon dioxide from surrounding environment. This absorbed carbon dioxide reacts with the calcium oxide, which is already present in Reinforced concrete (RC) and form calcium carbonate an acidic compound that enhances corrosion on the surface of the reinforcement. Addition of photo catalytic materials to the RC structure during its construction phase could reduce the corrosion problem of RC materials. This material hinders calcium oxide to form acidic compound and creates a complex compound. In combination with light, this complex compound is oxidized, and residual compound will exist in or surface of RC material. In this study we find out a new photo catalytic material LiNbO3 in concrete construction, adjustable with RC material for reducing corrosion problem and enhancing oxidization process of volatile organic compounds (VOC).
International Journal of Physical Sciences | 2012
Bilal A. Wasmi; Abdul Amir; H. Kadhum; Ahmed A. Al-Amiery; Abu Bakar Mohamad
The compounds that mainly interfere with perchlorate reduction in contaminated tap water, nitrate and dissolved oxygen (DO), were reduced using a fluidized bed bioreactor. Nitrate was reduced to below the maximum level of contamination adopted by the United States Environmental Protection Agency (EPA), 10 ppm, and the percentages of nitrate were 90, 84 and 80% for concentrations (conc.) of 25, 50 and 100 ppm perchlorate, respectively, after a 6 h hydraulic retention time (HRT). The DO concentration was reduced to less than 1 mg/L, which is considered to be appropriate for the maximum rates of perchlorate anion reduction, and the percentages of DO removed were 80, 83, and 88% for 25, 50, and 100 ppm perchlorate, respectively, after a 6 h HRT. The maximum reduction for perchlorate was obtained with an HRT of 6 h for the different concentrations of perchlorate anion contamination. This result was confirmed by increase in the concentration of free chloride and decrease in the pH values for UP water. The free chloride concentrations increased to 36, 47 and 58 ppm for the 25, 50 and 100 ppm perchlorate concentration, respectively, after the 6 h HRT. The pH values decreased to 6.01, 5.8 and 6.2 for the 25, 50 and 100 ppm perchlorate concentration, respectively, after the 6 h HRT.
International Journal of Electrochemical Science | 2011
Ahmed Y. Musa; Abu Bakar Mohamad; Abdul Amir; H. Kadhum; Eng Pei Chee
International Journal of Electrochemical Science | 2012
Ahmed A. Al-Amiery; Huda Dhia Jaffar; Hasan R. Obayes; Ahmed Y. Musa; Abdul Amir; H. Kadhum; Abu Bakar Mohamad
Archive | 2013
Sami Salman; Abdul Amir; H. Kadhum; Mohd Sobri Takriff; Abu BakarMohamad
International Journal of Physical Sciences | 2012
Abdul Amir; H. Kadhum; Ahmed A. Al-Amiery; Hamdan A. Aday; Yasamin K. Al-Majedy; Redah I. Al-Bayati; Abu Bakar Mohamad
Asian Journal of Microbiology, Biotechnology and Environmental Sciences | 2013
Bassam Alkotaini; Nurina Anuar; Abdul Amir; H. Kadhum
Archive | 2016
Kee Shyuan Loh; Abu Bakar Mohamad; Abdul Amir; H. Kadhum; Kean Long Lim
Archive | 2015
Sami Salman; Abdul Amir; H. Kadhum; Mohd Sobri Takriff; Abu Bakar Mohamad