Suhardy Daud
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Preferred name
Suhardy Daud
Official Name
Suhardy, Daud
Alternative Name
Daud, S.
Daud, Suhardy
Main Affiliation
Scopus Author ID
36937454400
Researcher ID
EQP-4308-2022

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  • Publication
    Detection of landfill odour using Quartz Crystal Microbalance (QCM)
    ( 2006)
    Saiful Azhar Saad
    ;
    Mohd Noor Ahmad
    ;
    Suhardy Daud
    ;
    Farizul Hafiz Kasim
    ;
    Mohd Nazry Salleh
    Odour is considered as the main environmental pollution agent in Malaysia. Even though the standard permissible level for odour in Malaysia has not been set yet as for air and water, malodour is considered as one of the main polluting agents, since the people has started to be concerned about the malodour. Conventionally, the odour was detected by the olfactometer, which used human as its panel for smell. But the human panels are unable to produce a consistance result, especially for the continous monitoring. In this study, the Quartz Crystal Microbalance (QCM) was used as an odour detector. The QCM is basically a mass sensitive device with the ability to measure a very small change on a quartz crystal resonator in real time. This system basically comprises of an array of sensors as well as data acquisition and components analysis. A Principle Component Analysis (PCA) is used to define three distinct regions, according to the time of the samples being taken and hence allow the landfill odour differentiation.