The production of propylene from propane dehydrogenation process in the petrochemical sector regularly produce high concentration of sulphur in the form of sodium sulphide (Na2S). High concentration of sulphide can lead to corrosion in sewage pipes, massive fish kill and obnoxious odors into the atmosphere. Adsorption technique using low-cost and environmentally friendly adsorbents derived from natural resources such as rice husk ash (RHA) may offer a suitable alternative for in situ removal of contaminants such as sodium sulphide in industrial wastewater. In this work, the use of silica synthesized from RHA was investigated for its potential in removing high concentration of sulphide (S2-) in the form of sodium sulphide from wastewater. Results showed that pure silica with the size around 0.9 to 2.0 µm was successfully synthesized from RHA. Significant reduction of sulphide level was observed after being treated with RHA-based silica calcined with clay compared to other adsorbents such as chemically treated nanoporous zeolite and natural clay itself with more than 90 % removal after 120 minutes of treatment with the value of the pseudo-first-order rate constant, k of 0.1404, 0.14 and 0.1519 for silica compared to zeolite. This suggests that the use of silica derived from RHA has a potential to be used as sulphide remover in industrial wastewater without extensive chemical treatment to improve its removal capacity.
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9 June 2022
INTERNATIONAL CONFERENCE ON BIOENGINEERING AND TECHNOLOGY (IConBET2021)
24–25 May 2021
Kelantan, Malaysia
Research Article|
June 09 2022
The potential of silica from rice husk ash on removal of sulphide in wastewater
Nurul Alia Nabilah Dzolkifle;
Nurul Alia Nabilah Dzolkifle
a)
1
Environmental Biology and Biotechnology Research Unit (EBBRU), Department of Biotechnology, Kulliyyah of Science, International Islamic University Malaysia
, Kuantan, Pahang, Malaysia
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Ammar Akmal Zuhdi Ramli;
Ammar Akmal Zuhdi Ramli
b)
1
Environmental Biology and Biotechnology Research Unit (EBBRU), Department of Biotechnology, Kulliyyah of Science, International Islamic University Malaysia
, Kuantan, Pahang, Malaysia
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Farah Izzatie Hananie Mohamad Zain;
Farah Izzatie Hananie Mohamad Zain
c)
1
Environmental Biology and Biotechnology Research Unit (EBBRU), Department of Biotechnology, Kulliyyah of Science, International Islamic University Malaysia
, Kuantan, Pahang, Malaysia
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Siti Nurnafisah Mohd Zuraidi;
Siti Nurnafisah Mohd Zuraidi
d)
1
Environmental Biology and Biotechnology Research Unit (EBBRU), Department of Biotechnology, Kulliyyah of Science, International Islamic University Malaysia
, Kuantan, Pahang, Malaysia
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Mohd. Faez Sharif;
Mohd. Faez Sharif
e)
1
Environmental Biology and Biotechnology Research Unit (EBBRU), Department of Biotechnology, Kulliyyah of Science, International Islamic University Malaysia
, Kuantan, Pahang, Malaysia
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Ruhan Asyrani Rosli;
Ruhan Asyrani Rosli
f)
1
Environmental Biology and Biotechnology Research Unit (EBBRU), Department of Biotechnology, Kulliyyah of Science, International Islamic University Malaysia
, Kuantan, Pahang, Malaysia
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Ahmad Razi Othman;
Ahmad Razi Othman
g)
2
Department of Chemical Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia
, Bangi, Selangor, Malaysia
.
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Zakuan Azizi Shamsul Harumain
Zakuan Azizi Shamsul Harumain
h)
1
Environmental Biology and Biotechnology Research Unit (EBBRU), Department of Biotechnology, Kulliyyah of Science, International Islamic University Malaysia
, Kuantan, Pahang, Malaysia
h)Corresponding author: zak@iium.edu.my
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AIP Conf. Proc. 2454, 070002 (2022)
Citation
Nurul Alia Nabilah Dzolkifle, Ammar Akmal Zuhdi Ramli, Farah Izzatie Hananie Mohamad Zain, Siti Nurnafisah Mohd Zuraidi, Mohd. Faez Sharif, Ruhan Asyrani Rosli, Ahmad Razi Othman, Zakuan Azizi Shamsul Harumain; The potential of silica from rice husk ash on removal of sulphide in wastewater. AIP Conf. Proc. 9 June 2022; 2454 (1): 070002. https://doi.org/10.1063/5.0078661
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