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Adsorptive Properties of Biochar Derived from Sago Effluent Activated Sludge Process

Bioconversion of agricultural wastes into value-added products provides an eco-friendly alternative for a sustainable waste management system. In this study, activated carbon (AC) derived from the sago effluent activated sludge process was proposed for the removal of lead(II) (Pb(II)) and methylene...

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Main Author: Siti Nur Aqilah, Makshut
Format: Thesis
Language:English
Published: UNIMAS 2022
Subjects:
QD Chemistry
Online Access:http://ir.unimas.my/id/eprint/39486/1/Siti%20Nur%20Aqilah.pdf
http://ir.unimas.my/id/eprint/39486/
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spelling my.unimas.ir.394862024-07-02T06:14:04Z http://ir.unimas.my/id/eprint/39486/ Adsorptive Properties of Biochar Derived from Sago Effluent Activated Sludge Process Siti Nur Aqilah, Makshut QD Chemistry Bioconversion of agricultural wastes into value-added products provides an eco-friendly alternative for a sustainable waste management system. In this study, activated carbon (AC) derived from the sago effluent activated sludge process was proposed for the removal of lead(II) (Pb(II)) and methylene blue (MB) dye from an aqueous solution. Sago effluent activated sludge was pyrolyzed in a tube furnace and underwent chemical activation with NaOH to yield sago AC. Batch experiments were used to study the Pb(II) adsorption by sago AC at adsorbent dosage (0.1 – 0.5 g), initial Pb(II) concentration (1 – 5 mg/L), and pH (2 – 10), and MB adsorption at initial MB concentration (2 – 10 mg/L) and contact time (30 – 90 min). Response surface methodology (RSM) with central composite design (CCD) was used to optimize the adsorption of Pb(II) and MB. Results showed that the AC has a large pore size (2.70 – 6.90 μm) and a surface area of 78.863 m2/g. Adsorption of Pb(II) and MB can be represented by Langmuir isotherm with R2 values of 0.9308 and 0.9225 respectively. The optimum Pb(II) removal (99.87%) occurred at pH 2, 0.5 g adsorbent dosage, 5 mg/L initial Pb(II) concentration and at 30 min. The optimum MB removal (92.69%) occurred at pH 6, 10 mg/L initial MB concentration, 0.5 g adsorbent dosage, and 60 min. In conclusion, sago AC derived from the sago effluent activated sludge process is an excellent adsorbent for Pb(II) and MB. UNIMAS 2022 Thesis NonPeerReviewed text en http://ir.unimas.my/id/eprint/39486/1/Siti%20Nur%20Aqilah.pdf Siti Nur Aqilah, Makshut (2022) Adsorptive Properties of Biochar Derived from Sago Effluent Activated Sludge Process. Masters thesis, UNIMAS.
institution Universiti Malaysia Sarawak
building Centre for Academic Information Services (CAIS)
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sarawak
content_source UNIMAS Institutional Repository
url_provider http://ir.unimas.my/
language English
topic QD Chemistry
spellingShingle QD Chemistry
Siti Nur Aqilah, Makshut
Adsorptive Properties of Biochar Derived from Sago Effluent Activated Sludge Process
description Bioconversion of agricultural wastes into value-added products provides an eco-friendly alternative for a sustainable waste management system. In this study, activated carbon (AC) derived from the sago effluent activated sludge process was proposed for the removal of lead(II) (Pb(II)) and methylene blue (MB) dye from an aqueous solution. Sago effluent activated sludge was pyrolyzed in a tube furnace and underwent chemical activation with NaOH to yield sago AC. Batch experiments were used to study the Pb(II) adsorption by sago AC at adsorbent dosage (0.1 – 0.5 g), initial Pb(II) concentration (1 – 5 mg/L), and pH (2 – 10), and MB adsorption at initial MB concentration (2 – 10 mg/L) and contact time (30 – 90 min). Response surface methodology (RSM) with central composite design (CCD) was used to optimize the adsorption of Pb(II) and MB. Results showed that the AC has a large pore size (2.70 – 6.90 μm) and a surface area of 78.863 m2/g. Adsorption of Pb(II) and MB can be represented by Langmuir isotherm with R2 values of 0.9308 and 0.9225 respectively. The optimum Pb(II) removal (99.87%) occurred at pH 2, 0.5 g adsorbent dosage, 5 mg/L initial Pb(II) concentration and at 30 min. The optimum MB removal (92.69%) occurred at pH 6, 10 mg/L initial MB concentration, 0.5 g adsorbent dosage, and 60 min. In conclusion, sago AC derived from the sago effluent activated sludge process is an excellent adsorbent for Pb(II) and MB.
format Thesis
author Siti Nur Aqilah, Makshut
author_facet Siti Nur Aqilah, Makshut
author_sort Siti Nur Aqilah, Makshut
title Adsorptive Properties of Biochar Derived from Sago Effluent Activated Sludge Process
title_short Adsorptive Properties of Biochar Derived from Sago Effluent Activated Sludge Process
title_full Adsorptive Properties of Biochar Derived from Sago Effluent Activated Sludge Process
title_fullStr Adsorptive Properties of Biochar Derived from Sago Effluent Activated Sludge Process
title_full_unstemmed Adsorptive Properties of Biochar Derived from Sago Effluent Activated Sludge Process
title_sort adsorptive properties of biochar derived from sago effluent activated sludge process
publisher UNIMAS
publishDate 2022
url http://ir.unimas.my/id/eprint/39486/1/Siti%20Nur%20Aqilah.pdf
http://ir.unimas.my/id/eprint/39486/
_version_ 1804070531811508224
score 13.211869

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