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Adsorption of mercury from aqueous solutions using palm oil fuel ash as an adsorbent - batch studies

Imla Syafiqah, Mohd Salleh and Hafizuddin, Wan Yussof (2018) Adsorption of mercury from aqueous solutions using palm oil fuel ash as an adsorbent - batch studies. In: IOP Conference Series: Materials Science and Engineering, The 3rd International Conference on Chemical Engineering Sciences and Applications 2017 (3rd ICChESA 2017), 20-21 September 2017 , Banda Aceh, Indonesia. pp. 1-8., 334 (012039). ISSN 1757-899X

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Palm oil fuel ash (POFA) is one of the most abundantly produced waste materials. POFA is widely used by the oil palm industry which was collected as ash from the burning of empty fruit bunches fiber (EFB) and palm oil kernel shells (POKS) in the boiler as fuel to generate electricity. Mercury adsorption was conducted in a batch process to study the effects of contact time, initial Hg(II) ion concentration, and temperature. In this study, POFA was prepared and used for the removal of mercury(II) ion from the aqueous phase. The effects of various parameters such as contact time (0- 360 min), temperature (15 – 45 °C) and initial Hg(II) ion concentration (1 – 5 mg/L) for the removal of Hg(II) ion were studied in a batch process. The surface characterization was examined by scanning electron microscopy (SEM) and particle size distribution analysis. From this study, it was found that the highest Hg(II) ion removal was 99.60 % at pH 7, contact time of 4 h, initial Hg(II) ion concentration of 1 mg/L, adsorbent dosage 0.25 g and agitation speed of 100 rpm. The results implied that POFA has the potential as a low-cost and environmental friendly adsorbent for the removal of mercury from aqueous solution.

Item Type: Conference or Workshop Item (Lecture)
Uncontrolled Keywords: Palm oil fuel ash (POFA); Mercury
Subjects: T Technology > TP Chemical technology
Faculty/Division: Faculty of Chemical & Natural Resources Engineering
Depositing User: Noorul Farina Arifin
Date Deposited: 11 Apr 2018 08:01
Last Modified: 11 Apr 2018 08:01
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