Removal of Phosphate by Paper Mill Sludge: Adsorption Isotherm and Kinetic Study
Phosphate ions have been removed from aqueous solution by paper mill sludge. The influences of experimental conditions such as pH, amount of adsorbent, initial concentration of phosphate, adsorption isotherm and adsorption kinetics of paper mill sludge were studied. The adsorption of phosphate was...
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| Format: | Article |
| Language: | English |
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Asian Publication Corporation
2014
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| Online Access: | http://eprints.usm.my/37535/ http://eprints.usm.my/37535/1/Asianjournalofchemistrymug.pdf |
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| author | Mohamad, Sharifah Abu Bakar, Nor Kartini Ishak, Ahmad Razali Surikumaran, Hemavathy Pandian, Kavirajaa Ramachandran, Muggundha Raoov Mohamad Zain, Nur Nadhirah Chandrasekaram, Kumuthini |
| author_facet | Mohamad, Sharifah Abu Bakar, Nor Kartini Ishak, Ahmad Razali Surikumaran, Hemavathy Pandian, Kavirajaa Ramachandran, Muggundha Raoov Mohamad Zain, Nur Nadhirah Chandrasekaram, Kumuthini |
| author_sort | Mohamad, Sharifah |
| building | USM Institutional Repository |
| collection | Online Access |
| description | Phosphate ions have been removed from aqueous solution by paper mill sludge. The influences of experimental conditions such as pH,
amount of adsorbent, initial concentration of phosphate, adsorption isotherm and adsorption kinetics of paper mill sludge were studied.
The adsorption of phosphate was more efficient in the basic pH region (pH 12). Pseudo second-order model fits better than the pseudo
first-order model for adsorption kinetic data and indicates the adsorption process is based on chemisorptions. The calculated activation
energy (Ea) is 37.01 J/mol which further suggests that the sorption of phosphate by paper mill sludge was based on chemical adsorption.
Consequently, the equilibrium isotherm data were fitted well to Langmuir isotherm with maximum adsorption capacity of 12.65 mg/g.
From the study, it showed that paper mill sludge has the potential to be utilized as a cost effective and high capability adsorbent for
removal of phosphate from aqueous solutions. |
| first_indexed | 2025-11-15T17:27:52Z |
| format | Article |
| id | usm-37535 |
| institution | Universiti Sains Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T17:27:52Z |
| publishDate | 2014 |
| publisher | Asian Publication Corporation |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | usm-375352017-12-06T02:42:51Z http://eprints.usm.my/37535/ Removal of Phosphate by Paper Mill Sludge: Adsorption Isotherm and Kinetic Study Mohamad, Sharifah Abu Bakar, Nor Kartini Ishak, Ahmad Razali Surikumaran, Hemavathy Pandian, Kavirajaa Ramachandran, Muggundha Raoov Mohamad Zain, Nur Nadhirah Chandrasekaram, Kumuthini QD1-999 Chemistry Phosphate ions have been removed from aqueous solution by paper mill sludge. The influences of experimental conditions such as pH, amount of adsorbent, initial concentration of phosphate, adsorption isotherm and adsorption kinetics of paper mill sludge were studied. The adsorption of phosphate was more efficient in the basic pH region (pH 12). Pseudo second-order model fits better than the pseudo first-order model for adsorption kinetic data and indicates the adsorption process is based on chemisorptions. The calculated activation energy (Ea) is 37.01 J/mol which further suggests that the sorption of phosphate by paper mill sludge was based on chemical adsorption. Consequently, the equilibrium isotherm data were fitted well to Langmuir isotherm with maximum adsorption capacity of 12.65 mg/g. From the study, it showed that paper mill sludge has the potential to be utilized as a cost effective and high capability adsorbent for removal of phosphate from aqueous solutions. Asian Publication Corporation 2014 Article PeerReviewed application/pdf en cc_by http://eprints.usm.my/37535/1/Asianjournalofchemistrymug.pdf Mohamad, Sharifah and Abu Bakar, Nor Kartini and Ishak, Ahmad Razali and Surikumaran, Hemavathy and Pandian, Kavirajaa and Ramachandran, Muggundha Raoov and Mohamad Zain, Nur Nadhirah and Chandrasekaram, Kumuthini (2014) Removal of Phosphate by Paper Mill Sludge: Adsorption Isotherm and Kinetic Study. Asian Journal of Chemistry, 26 (12). pp. 3545-3552. ISSN 0970-7077 https://doi.org/10.14233/ajchem.2014.16227 |
| spellingShingle | QD1-999 Chemistry Mohamad, Sharifah Abu Bakar, Nor Kartini Ishak, Ahmad Razali Surikumaran, Hemavathy Pandian, Kavirajaa Ramachandran, Muggundha Raoov Mohamad Zain, Nur Nadhirah Chandrasekaram, Kumuthini Removal of Phosphate by Paper Mill Sludge: Adsorption Isotherm and Kinetic Study |
| title | Removal of Phosphate by Paper Mill Sludge: Adsorption Isotherm and Kinetic Study |
| title_full | Removal of Phosphate by Paper Mill Sludge: Adsorption Isotherm and Kinetic Study |
| title_fullStr | Removal of Phosphate by Paper Mill Sludge: Adsorption Isotherm and Kinetic Study |
| title_full_unstemmed | Removal of Phosphate by Paper Mill Sludge: Adsorption Isotherm and Kinetic Study |
| title_short | Removal of Phosphate by Paper Mill Sludge: Adsorption Isotherm and Kinetic Study |
| title_sort | removal of phosphate by paper mill sludge: adsorption isotherm and kinetic study |
| topic | QD1-999 Chemistry |
| url | http://eprints.usm.my/37535/ http://eprints.usm.my/37535/ http://eprints.usm.my/37535/1/Asianjournalofchemistrymug.pdf |