Now showing items 1-17 of 17

    • 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 ...
    • Characteristic of COD and colour removal of azo dye in ozonation and biological treatment 

      Che Zulzikrami Azner, Abidin; Fahmi Muhammad, Ridwan (Institute of Electrical and Electronics Engineers (IEEE), 2011)
      In this research, the characteristic of COD and colour removal of azo dye by ozonation and biological treatment was evaluated for applying in azo dye industrial effluent treatment. Reactive Red 120, Remazol Brilliant Blue, ...
    • 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 ...
    • Decolourization of an azo dye in aqueous solution by ozonation in a semi-batch bubble column reactor 

      Che Zulzikrami Azner, Abidin; Muhammad Ridwan, Fahmi; Ong, Soon-An; Siti Nurfatin Nadhirah, Mohd Makhtar; Nazzery Rosmady, Rahmat (Science Society of Thailand under Royal Patronage, 2015-02)
      The oxidative degradation of the azo dye Reactive Red 120 by ozonation was investigated. The decolourization was carried out by bubbling ozone at the bottom of a bubble column reactor containing the dye solution. The colour, ...
    • 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 ...
    • Evaluation on the molecular structure of azo dye in photocatalytic mineralization under solar light irradiation 

      Wan Fadhilah, Khalik; Ong, Soon-An; Ho, Li Ngee; Wong, Yee Shian; Nik Athirah, Yusoff; Muhammad Ridwan, Fahmi (Taylor and Francis Ltd., 2015-08-21)
      The aim of this study was to investigate the effects of number of sulphonic groups on solar photocatalytic degradation of Acid Orange 7 (AO7), Orange G (OG), New Coccine (NC), Reactive Black 5 (RB5) and Reactive Green 19 ...
    • A highly efficient single chambered up-flow membrane-less microbial fuel cell for treatment of azo dye Acid Orange 7-containing wastewater 

      Thung, Wei Eng; Ong, Soon-An; Ho, Li Ngee; Wong, Yee Shian; Oon, Yoong Ling; Oon, Yoong Sin; Harvinder Kaur, Lehl; Fahmi, Muhammad Ridwan (Elsevier B.V., 2015-12-01)
      Single chambered up-flow membrane-less microbial fuel cell (UFML MFC) was developed to study the feasibility of the bioreactor for decolorization of Acid Orange 7 (AO7) and electricity generation simultaneously. The ...
    • 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, ...
    • 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 ...
    • 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 ...