Browsing Researchers by Author "drfahmi@unimap.edu.my"
Now showing items 1-12 of 12
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Catalytic dehydrogenation of methylcyclohexane (MCH) to toluene in a palladium/alumina hollow fibre membrane reactor
Mohd Irfan Hatim, Mohamed Dzahir, Dr.; Umi Fazara, Md. Ali, Dr.; Muhammad Syarhabil, Ahmad, Dr.; Fahmi, Muhammad Ridwan, Dr. (Elsevier Ltd., 2013)A compact multifunctional Pd/alumina hollow fibre membrane reactor (HFMR) has been developed and used for the catalytic dehydrogenation of methylcyclohexane to toluene. The developed HFMR consists of a thin and defect-free ... -
Characterization of coagulation active agent from moringa oleifera for water turbidity and hardness removal
Nurfahasdi, Meutia; Fahmi, Muhammad Ridwan, Dr.; Umi Fazara, Md. Ali, Dr.; Salsuwanda, Selamat (Universiti Malaysia Perlis (UniMAP), 2012-06-18)The objective of this study was to explore the capacity of the coagulation active agent that extracted from Moringa oleifera (MO) by various solutions for turbidity and hardness removal in raw water sources. The extracted ... -
Characterization of organic matter in ozonation and biological treatment
Fahmi, Muhammad Ridwan; Wataru, Nishijima; Mitsumasa, Okada (IWA Publishing, 2003-06)The multi-stage ozonation-biological treatment process was evaluated to compare the performance of dissolved organic carbon (DOC) removal from two water sources between the conventional single-stage and the multi-stage ... -
Decolorization and degradation of reactive red 120 azo dye by oxidation processes
Che Zulzikrami, Azner Abidin; Fahmi, Muhammad Ridwan, Dr.; Ong, Soon An; Nazerry Rosmady, Rahmat; Siti Nurfatin Nadhirah, Mohd Makhtar (Universiti Malaysia Perlis (UniMAP), 2012-06-18)In this study, the treatment of azo dye, Reactive Red 120 (RR120) by oxidation using (ozone) O3 and ozone/hydrogen peroxide (O3/H2O2) treatments were evaluated. O3 carried out using a glass reactor, generated from an ... -
Development of aerobic granular in rubber industry wastewater
Najihah, Abdul Rashid; Farrah Aini, Dahalan; Fahmi, Muhammad Ridwan, Dr.; Ong, Soon An; Abdul Latif, Abdul Rani (Universiti Malaysia Perlis (UniMAP), 2012-06-18)Seed sludge from rubber industry wastewater treatment plant was used. Aerobic granular sludge was cultured in sequencing batch reactor (SBR) which was operated with total cycle of 4 hours. It was fed with rubber wastewater ... -
DOC removal by multi-stage ozonation-biological treatment
Wataru, Nishijima; Fahmi, Muhammad Ridwan; Tsukasa, Mukaidani; Mitsumasa, Okada (IWA Publishing, 2003-01)Multi-stage ozonation-biological treatment process for dissolved organic carbon (DOC) removal was evaluated to apply for drinking water treatment. Waters with different types of DOC were used, i.e. a reservoir water for ... -
Improvement of DOC removal by multi-stage AOP-biological treatment
Fahmi, Muhammad Ridwan; Wataru, Nishijima; Mitsumasa, Okada (Elsevier B.V., 2003-03)The single and multi-stages advanced oxidation process (AOP)-biological treatments were evaluated to apply for drinking water treatment, especially for the water containing less susceptible dissolved organic carbon (DOC) ... -
Mechanism of turbidity and hardness removal in hard water sources by using Moringa oleifera
Fahmi, Muhammad Ridwan, Dr.; Nor Wahidatul Azura, Zainon Najib; Pang, Chan Ping; Nasrul, Hamidin, Dr. (Asian Network for Scientific, 2011)The objective of this study was to describe the mechanism of simultaneous removal of hardness and background turbidity in hard water for drinking water purpose by using Moringa oleifera (MO) that extracted with 1.0 M sodium ... -
Performance evaluation of okra (abelmoschus esculentus) as coagulant for turbidity removal in water treatment
Fahmi, Muhammad Ridwan, Dr.; Nasrul, Hamidin, Dr.; Che Zulzikrami, Azner Abidin; Umi Fazara, Md. Ali, Dr.; Mohd Irfan Hatim, Mohamed Dzahir (Trans Tech Publications, 2014)The objective of this study is to evaluate the performance of turbidity removal in water by using Okra (Abelmoschus esculentus) as natural coagulant. The coagulation active agent in various Okra sections was extracted with ... -
Physicochemical properties of pyrolitic carbon black from waste tyres
Umi Fazara, Md. Ali, Dr.; Ishak, Jainoo; Khairul Nizar, Ismail, Assoc. Prof. Dr.; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Fahmi, Muhammad Ridwan, Dr. (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, ... -
Study of Methylene Blue color removal effectiveness by Moringa Oleifera and Alum
Nor Wahidatul Azura, Zainon Najib; Fahmi, Muhammad Ridwan, Dr.; Syakirah Afiza, Mohammed; Lim, Bee Sian (Universiti Malaysia Perlis (UniMAP), 2012-06-18)This study was designed to investigate the efficiency of using two coagulants that is natural coagulant represent Moringa Oleifera (MO) and chemical coagulant represent Aluminium Sulfate (ALUM) in Methylene Blue (MB) color ... -
Trend in azo dye reactive red 120 degradation by ozonation and advanced oxidation process
Fahmi, Muhammad Ridwan, Dr.; Li-Sze, Lai; Nazerry Rosmady, Rahmat; Che Zulzikrami Azner, Abidin; Ong, Soon An; Umi Fazara, Md. Ali (Universiti Malaysia Perlis (UniMAP), 2012-06-18)In this study, the trend of azo dye degradation by ozonation and advanced oxidation process was evaluated base on colour and COD removal efficiency of Reactive Red 120. In addition, FT-IR spectrum was analysed to determine ...