Mahyun Ab Wahab
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Preferred name
Mahyun Ab Wahab
Official Name
Mahyun, Ab Wahab
Alternative Name
Ab Wahab, Mahyun
Main Affiliation
Scopus Author ID
57391475400
Researcher ID
EJW-8998-2022

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  • Publication
    Investigation of Biosand Filter (BSF) on the Treatment Performance of Industrial Latex Wastewater
    (IOP Publishing, 2024)
    Najihah Abdul Rashid
    ;
    Abdul Latif Abdul Rani
    ;
    M F Omar
    ;
    N A Zainol
    ;
    Salwa Mohd Zaini Makhtar
    ;
    Mahyun Ab Wahab
    ;
    Nabilah Aminah Lutpi
    ;
    Farrah Aini Dahalan
    Biosand Filters (BSF) has great potential to improve the water quality. BSF is used extensively in the treatment of drinking water in rural areas because it is affordable, simple to use, and has a high removal efficiency. This study used actual latex effluent to examine the effectiveness of SBR. The growth of the biolayer in the BSF is also observed. This study analyzes consistent and stable results for COD, DO and NH4-N+. With removal performance ranging from 87 % to 99 %. DO value for BSF varied from lowest value of 1.5 mg/L to 8mg/L. Overall, the BSF was capable of producing treated water for water reclamation.
  • Publication
    Modeling and visualization of the changes of flow in the modular paver using ANSYS FLUENT
    (IOP Publishing, 2023)
    Salwa Mohd Zaini Makhtar
    ;
    Nor Amirah Abu Seman @ Haji Ahmad
    ;
    Ain Nihla Kamarudzaman
    ;
    Zulkarnain Hassan
    ;
    Noor Ainee Zainol
    ;
    Muaz Mohd Zaini Makhtar
    ;
    Mahyun Ab Wahab
    Increasing quantity of stormwater runoff is natural but problematic consequences of urbanization. In addressing the issue, the porous pavement usage with modular installation system has been the new alternative being experimented instead of the traditional impervious asphalt and concrete pavers. The effectiveness of porous pavement depends upon the media materials used. This study examined the potentials of an invented surface fill arrangement to be used in conjunction with the hexagonal modular system where the media tested consists of granular activated carbon (GAC), sand and zeolite. The resulting optimum bed heights of 5 cm, 5 cm and 0 cm respectively for the GAC, sand and zeolite, corroborated with the outcome of employing the optimization function, thus validating the reliability of the given arrangement. Modeling using CFD ANSYS FLUENT software and visualizing the changes in the hexagonal module filled with GAC and sand of 5 cm thickness each resulted in a flow velocity of 3.5 x 10-5 m/s while a physical experiment on the fixed filter bed media consisting of the two materials gave an unsaturated velocity of 3.08 x 10-5 m/s. The 12 % difference between the experimental and simulated velocities was considered acceptable. The results showed that GAC and sand can be used as the media for the modular paver system that treats stormwater for heavy metals contamination while serving as a practical porous pavement alternative.