Staff View: The pertinence of microwave irradiated coconut shell bio-sorbent for wastewater decolourization: structural morphology and adsorption optimization using the response surface method (RSM)

The pertinence of microwave irradiated coconut shell bio-sorbent for wastewater decolourization: structural morphology and adsorption optimization using the response surface method (RSM)

Palm oil mill effluent contains carcinogenic coloured compounds that are difficult to separate due to their aromatic structure. Though colour treatment using adsorption processes at lower pH (<4) have been reported effectual, due to its acidity the remediated effluent poses an environmental hazar...

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Main Authors:	Mohammed, Abdulsalam, Che Man, Hasfalina, Idris, Aida Isma, Zainal Abidin, Zurina, Md Yunos, Khairul Faezah
Format:	Article
Language:	English
Published:	MDPI 2018
Online Access:	http://psasir.upm.edu.my/id/eprint/74238/1/The%20pertinence%20of%20microwave%20irradiated%20coconut%20shell.pdf http://psasir.upm.edu.my/id/eprint/74238/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6209996/pdf/ijerph-15-02200.pdf
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spelling	my.upm.eprints.742382020-04-11T17:06:54Z http://psasir.upm.edu.my/id/eprint/74238/ The pertinence of microwave irradiated coconut shell bio-sorbent for wastewater decolourization: structural morphology and adsorption optimization using the response surface method (RSM) Mohammed, Abdulsalam Che Man, Hasfalina Idris, Aida Isma Zainal Abidin, Zurina Md Yunos, Khairul Faezah Palm oil mill effluent contains carcinogenic coloured compounds that are difficult to separate due to their aromatic structure. Though colour treatment using adsorption processes at lower pH (<4) have been reported effectual, due to its acidity the remediated effluent poses an environmental hazard as a result. Thus, the current study focused on achieving decolourization at neutral pH by enhancing the morphology of the coconut shell activated carbon (CSAC) using N₂ as activating-agent with microwave irradiation heating. The microwave pretreated and non-pretreated CSAC were characterized using scanned electron microscopy (SEM), energy dispersive X-ray (EDX) and Brunauer-Emmett-Teller (BET) analysis. A significant modification in the porous structure with a 66.62% increase in the specific surface area was achieved after the pretreatment. The adsorption experimental matrix was developed using the central composite design to investigate the colour adsorption performance under varied pH (6⁻7), dosage (2⁻6 g) and contact time (10⁻100 min). At optimum conditions of neutral pH (7), 3.208 g dosage and contact time of 35 min, the percentage of colour removal was 96.29% with negligible differences compared with the predicted value, 95.855%. The adsorption equilibrium capacity of 1430.1 ADMI × mL/g was attained at the initial colour concentration of 2025 ADMI at 27 °C. The experimental data fitted better with the Freundlich isotherm model with R² 0.9851. MDPI 2018 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/74238/1/The%20pertinence%20of%20microwave%20irradiated%20coconut%20shell.pdf Mohammed, Abdulsalam and Che Man, Hasfalina and Idris, Aida Isma and Zainal Abidin, Zurina and Md Yunos, Khairul Faezah (2018) The pertinence of microwave irradiated coconut shell bio-sorbent for wastewater decolourization: structural morphology and adsorption optimization using the response surface method (RSM). International Journal of Environmental Research and Public Health, 15 (10). art. no. 2200. pp. 1-19. ISSN 1661-7827; EISSN: 1660-4601 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6209996/pdf/ijerph-15-02200.pdf 10.3390/ijerph15102200
institution	Universiti Putra Malaysia
building	UPM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Putra Malaysia
content_source	UPM Institutional Repository
url_provider	http://psasir.upm.edu.my/
language	English
description	Palm oil mill effluent contains carcinogenic coloured compounds that are difficult to separate due to their aromatic structure. Though colour treatment using adsorption processes at lower pH (<4) have been reported effectual, due to its acidity the remediated effluent poses an environmental hazard as a result. Thus, the current study focused on achieving decolourization at neutral pH by enhancing the morphology of the coconut shell activated carbon (CSAC) using N₂ as activating-agent with microwave irradiation heating. The microwave pretreated and non-pretreated CSAC were characterized using scanned electron microscopy (SEM), energy dispersive X-ray (EDX) and Brunauer-Emmett-Teller (BET) analysis. A significant modification in the porous structure with a 66.62% increase in the specific surface area was achieved after the pretreatment. The adsorption experimental matrix was developed using the central composite design to investigate the colour adsorption performance under varied pH (6⁻7), dosage (2⁻6 g) and contact time (10⁻100 min). At optimum conditions of neutral pH (7), 3.208 g dosage and contact time of 35 min, the percentage of colour removal was 96.29% with negligible differences compared with the predicted value, 95.855%. The adsorption equilibrium capacity of 1430.1 ADMI × mL/g was attained at the initial colour concentration of 2025 ADMI at 27 °C. The experimental data fitted better with the Freundlich isotherm model with R² 0.9851.
format	Article
author	Mohammed, Abdulsalam Che Man, Hasfalina Idris, Aida Isma Zainal Abidin, Zurina Md Yunos, Khairul Faezah
spellingShingle	Mohammed, Abdulsalam Che Man, Hasfalina Idris, Aida Isma Zainal Abidin, Zurina Md Yunos, Khairul Faezah The pertinence of microwave irradiated coconut shell bio-sorbent for wastewater decolourization: structural morphology and adsorption optimization using the response surface method (RSM)
author_facet	Mohammed, Abdulsalam Che Man, Hasfalina Idris, Aida Isma Zainal Abidin, Zurina Md Yunos, Khairul Faezah
author_sort	Mohammed, Abdulsalam
title	The pertinence of microwave irradiated coconut shell bio-sorbent for wastewater decolourization: structural morphology and adsorption optimization using the response surface method (RSM)
title_short	The pertinence of microwave irradiated coconut shell bio-sorbent for wastewater decolourization: structural morphology and adsorption optimization using the response surface method (RSM)
title_full	The pertinence of microwave irradiated coconut shell bio-sorbent for wastewater decolourization: structural morphology and adsorption optimization using the response surface method (RSM)
title_fullStr	The pertinence of microwave irradiated coconut shell bio-sorbent for wastewater decolourization: structural morphology and adsorption optimization using the response surface method (RSM)
title_full_unstemmed	The pertinence of microwave irradiated coconut shell bio-sorbent for wastewater decolourization: structural morphology and adsorption optimization using the response surface method (RSM)
title_sort	pertinence of microwave irradiated coconut shell bio-sorbent for wastewater decolourization: structural morphology and adsorption optimization using the response surface method (rsm)
publisher	MDPI
publishDate	2018
url	http://psasir.upm.edu.my/id/eprint/74238/1/The%20pertinence%20of%20microwave%20irradiated%20coconut%20shell.pdf http://psasir.upm.edu.my/id/eprint/74238/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6209996/pdf/ijerph-15-02200.pdf
_version_	1665896011650826240
score	13.211869

The pertinence of microwave irradiated coconut shell bio-sorbent for wastewater decolourization: structural morphology and adsorption optimization using the response surface method (RSM)

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