Conference Papers: Recent submissions

Now showing items 1321-1340 of 2600

    • Heavy metal (iron) removal from landfill eachate by using two-stage constructed wetlands planted with Limnocharis flava and Eichhornia crassipes 

      Ain Nihla, Kamarudzaman; Johan, S.; Roslaili, Abdul Aziz; Wong, Yee Shian; Mohd Faizal, A. J. (Universiti Malaysia Sarawak (UNIMAS)Faculty of Resource Science & Technology, 2009-08-03)
      The main purpose of this study was to treat heavy metal present in landfill leachate by the use of two-stage constructed wetland and planted with Limnocharis flava and Eichhornia crassipes. This study also examine the ...

    • Pyrolysis of rice straw; Effect of reaction parameter on the product yields and compositions 

      Razi, Ahmad; Khairuddin, Md Isa; Khairul Nizar, Ismail; Khudzir, Ismail (Universiti Malaysia Pahang (UMP), 2009-12-07)
      Rice straw was pyrolysed in a fixed-bed reactor. The effect of pyrolysis temperature, heating rate and holding time on the yield of the products were investigated. Pyrolysis runs were performed using pyrolysis temperatures ...

    • Biocrude from biomass: Pyrolysis of rice straw 

      Razi, Ahmad; Khairuddin, Md lsa; Khairul Nizar, Ismail; Khudzir, Ismail (Forest Research Institute Malaysia (FRIM), 2009-10-27)
      A series of biocrudes and chars were prepared from agricultural by-product rice straw. Fixed bed pyrolysis experiments have been conducted on a sample of rice straw to determine the effects of pyrolysis temperature, heating ...

    • Pyrolysis of rice straw; The effect of pyrolysis temperature and heating rate on the product yields 

      Razi, Ahmad; Khairuddin, Md Isa; Khairul Nizar, Ismail; Khudzir, Ismail; Maung Maung Soe (Universiti Kebangsaan Malaysia (UKM)Faculty of Engineering & Built Environment, 2009-10-20)
      Rice straw was pyrolysed in a fixed-bed reactor. The effect of pyrolysis temperature and heating rate on the yield of the products were investigated. Pyrolysis runs were performed using pyrolysis temperatures between 400 ...

    • Characterization of limestone and dolomite using x-ray fluorescent (XRF) for cement processing 

      Mokhzani Khair, Ishak; Khairul Nizar, Ismail; Kamarudin, Hussin; Wan Mohd Sabki, Wan Omar; Banjuraizah, Johar; Mohd Nazry, Salleh; Umar, Kassim (Mineral Research Centre, 2009-11-09)
      Dolomite and limestone is considered under a sedimentary carbonated rocks. It contains almost same compound but major difference is on the amount of MgO and CaO which prove with XRF testing. MgO for dolomite shows 23% and ...

    • Recycling waste tire into concrete-rubber composite 

      Mokhzani Khair, Ishak; Khairul Nizar, Ismail; Kamarudin, Hussin; Wan Mohd Sabki, Wan Omar; Mohd Asri, Ab. Rahim; Umar, Kassim; Libren Francis, Doublin; Norfadhilah, Ibrahim (Universiti Kebangsaan Malaysia (UKM)Faculty of Engineering & Built Environment, 2009-10-20)
      This research is to recycle waste tire to a concrete-rubber. The objective of this research is to investigate the possibility of using rubber particles as a replacement for the natural aggregates in concrete. These ...

    • Solid waste management in Taping, Perak : An effective approach towards a sustainable environment 

      Roslaili, Abdul Aziz; Mohd Nazry, S.; Salwa, Mohd Zaini Makhtar; Ain Nihla, Kamarudzaman (Universiti Malaysia Sarawak (UNIMAS)Faculty of Resource Science & Technology, 2009-08-03)
      As in all developing countries, cities in Malaysia are facing serious problems of environmental pollution mainly caused by the insufficient and inefficient final disposal of their generated solid wastes. This has lead to ...

    • Roles of single interpolation and statistical distributions on application in air quality data sets: An overview 

      Norazian, Mohamed Noor; Mohd Lutfi, Zainudin (Universiti Kebangsaan Malaysia (UKM)Faculty of Engineering & Built Environment, 2009-10-20)
      Since missing data in environmental data sets usually happen and ignorable the missing data and discard those incomplete cases in data sets as approach. However, this is not suitable for time-series prediction especially ...

    • Thermodynamic studies on removal reactive orange 16 dye on cross-linked chitosan/oil palm ash composite beads 

      Masitah, Hassan; Bassim, H. Hameed, Prof. Dr.; A. L., Ahmad (Universiti Malaysia Terengganu (UMT), 2009-12-07)
      The effect of temperature on adsorption of reactive orange (R016) by cross-linked chitosan/oil palm ash composite beads was investigated. Temperature studied from range 30 to 50 °C. It was observed that the uptake of this ...

    • Removal of colour from landfill by solar photocatalytic 

      Salwa, Mohd Zaini Makhtar; Naimah, Ibrahim; Mohammad Tamizi, Selimin (Universiti Malaysia Sabah (UMS), 2009-08-12)
      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 ...

    • COD removal from semi-aerobic landfill leachate 

      Salwa, Mohd Zaini Makhtar; Naimah, Ibrahim; Mohammad Tamizi, Selimin (Universiti Teknologi Malaysia (UTM), 2009-06-02)
      Leachate are heavily polluted liquid which may contain large amount of chemical oxygen demand (COD), biological chemical demand (BOD), ammonia (NH3) and colour. This study was conducted to examine the percentage of COD ...

    • Reusability of concrete sludge in sand brick 

      Abdul Haqi, Ibrahim; Z., N. Aini; Ayu Wazira, Azhari; Mahyun, Ab Wahab; Salwa, Mohd Zaini Makhtar; A. R., Asri (Universiti Sains Malaysia (USM), 2009-06-01)
      In this study, bricks manufactured from dried concrete sludge collected from a concrete batching plant were investigated. Five different series of sludge proportioning ratios were studied, which exclusively involved the ...

    • Study on the performance of subsurface flow and free water surface constructed wetland for landfill leachate treatment 

      Ain Nihla, Kamarudzaman; Johan, Sohaili, Prof. Madya Dr.; Mohd Faizal, A. J. (Universiti Sains Malaysia (USM), 2009-06-01)
      The potential to expand the use of constructed wetlands to the treatment of leachate beyond the more general treatment of wastewaters is relevant in today's context. It also an environmental friendly approach to remove ...

    • Application of SSF-FWS constructed wetland system for landfill leachate treatment 

      Ain Nihla, Kamarudzaman; Johan, Sohaili, Prof. Madya Dr.; Mohd. Faizal, A. J. (Universiti Teknologi Malaysia (UTM), 2009-06-02)
      Health problems and environmental pollutions are often related to inadequate landfill leachate treatment. Proper collection, treatment and disposal of leachate are necessary to promote better environment and healthful ...

    • Red mud as sorbent for S02 gas cleaning 

      Nabilah Aminah, Lutpi; Leon, Munro; John, Zhu (Curtin University of Technology, Sarawak Campus, 2009-11-24)
      The main purpose of this study was to investigate S02 removal using red mud as sorbent in laboratory. The study was carried out by using a laboratory-scale reactor to examine the batch absorption of S02 gas with slurry and ...

    • The mineralogy changes in red mud after reaction with S02 

      Nabilah Aminah, Lutpi; Leon, Munro; John, Zhu (Universiti Teknologi Malaysia (UTM), 2009-06-02)
      An incentive to investigate the mineralogy of red mud after the reaction with SO2 was carried out in this study to identify whether that the chemical properties of red mud are suitable for use as a sorbent in the flue gas ...

    • Reutilization of waste tire into concrete-rubber composite 

      Mokhzani Khair, Ishak; Khairul Nizar, Ismail; Wan Mohd Sabki, Wan Omar; Kamarudin, Hussin; Mohd Asri, Ab. Rahim; Umar, Kassim; Libren Francis, Doublin; Norfadhilah, Ibrahim (Universiti Tun Hussien Onn Malaysia (UTHM), 2009-12-14)
      This research is to reutilize waste tire to a concrete-rubber. The objective of this research is to investigate the possibility of using rubber particles as a replacement for the natural aggregates in concrete. These ...

    • Characterization of BET, XRF and weight loss on dolomite and calcined dolomite heated at different heating time 

      Mokhzani Khair, Ishak; Khairul Nizar, Ismail; Banjuraizah, Johar; Kamarudin, Hussin; Wan Mohd Sabki, Wan Omar (Universiti Sains Malaysia (USM)School of Materials & Mineral Resources Engineering (SMMRE), 2009-06-01)
      Dolomite consist carbonate of calcium and magnesium (CaC03 and MgCO^). It is formed [CaMg (CO^J from chemical action of sea-water containing high magnesium on limestone. The purpose of this study is to characterize dolomite ...

    • Anaerobic degradation of palm oil mill effluent (POME) at 60 days of hydraulic retention time (HRT) in an anaerobic bench scale reactor (ABSR) 

      Yee, Shian Wong; Ong, Soon An; Nabilah, Lutpi; Fahmi, Muhammad Ridwan (Universiti Malaysia Perlis (UniMAP)School of Bioprocess Engineering, 2009-12-12)
      Anaerobic pond system is particularly effective in treating high strength wastewater containing biodegradable solids as they achieve the dual purpose of particulate settlement and organic removal. The POME mainly contains ...

    • Urban air quality management in Malaysia and Thailand: A review 

      Norazian, Mohamed Noor; Mohd Lutfi, Zainuddin; Mohd Mustafa Al Bakri, Abdullah (Universiti Teknologi Malaysia (UTM), 2009-06-02)
      Air Pollution is an important problem in East Asia and the Pacific Region, especially in the big cities and industrial zones. Increased economic development in the Asian region has often led to rapid and unplanned urbanization. ...