Application of Response Surface Methodology (RSM) to optimize COD and ammoniacal nitrogen removal from leachate using moringa and zeolite mixtures
This paper reported the optimization of COD and NH3-N reduction from a stabilised leachate by zeolite (ZE) and moringa oleifera leaf powder (MP) mixture using response surface methodology (RSM) and central composite design (CCD). Quadratic polynomial equations were obtained for the removal process....
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| Format: | Article |
| Language: | English |
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Penerbit UTHM
2018
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| Online Access: | http://eprints.uthm.edu.my/5012/ http://eprints.uthm.edu.my/5012/1/AJ%202018%20%28815%29%20Application%20of%20Response%20Surface%20Methodology%20%28RSM%29%20to%20optimize%20COD%20and%20ammoniacal%20nitrogen%20removal%20from%20leachate%20using%20moringa%20and%20zeolit.pdf |
| _version_ | 1848888439946084352 |
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| author | Daud, Zawawi Abu Bakar, Mahmoud Hijab Rosli, Mohd Arif Ridzuan, Mohd Baharudin Aliyu, Ruwaida |
| author_facet | Daud, Zawawi Abu Bakar, Mahmoud Hijab Rosli, Mohd Arif Ridzuan, Mohd Baharudin Aliyu, Ruwaida |
| author_sort | Daud, Zawawi |
| building | UTHM Institutional Repository |
| collection | Online Access |
| description | This paper reported the optimization of COD and NH3-N reduction from a stabilised leachate by zeolite (ZE) and moringa oleifera leaf powder (MP) mixture using response surface methodology (RSM) and central composite design (CCD). Quadratic polynomial equations were obtained for the removal process. An initial experiment was conducted to establish the optimum mixed ratio between ZE:MP and resulted in a ratio of 24:16. Independent variables investigated in the subsequent optimization experiments include pH ,dosage and contact time. The results revealed that the optimal reduction of COD and NH3-N from landfill leachate was considerable at pH 5.9 , optimal time of 113 minutes and 100gL-1 of adsorbent dosage with desirability value of 0.917. The upper limits for the actual versus predicted reduction were 70.14 against 69.13% and 86.94 against 86.55 % respectively for COD and NH3-N which defined that the experimental values were relatively close to the predicted values. The study also revealed that ZE:MP mixture has a very high potential for the remediation of COD and NH3-N from a stabilized leachate. |
| first_indexed | 2025-11-15T20:10:19Z |
| format | Article |
| id | uthm-5012 |
| institution | Universiti Tun Hussein Onn Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T20:10:19Z |
| publishDate | 2018 |
| publisher | Penerbit UTHM |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | uthm-50122022-01-03T06:03:35Z http://eprints.uthm.edu.my/5012/ Application of Response Surface Methodology (RSM) to optimize COD and ammoniacal nitrogen removal from leachate using moringa and zeolite mixtures Daud, Zawawi Abu Bakar, Mahmoud Hijab Rosli, Mohd Arif Ridzuan, Mohd Baharudin Aliyu, Ruwaida TA Engineering (General). Civil engineering (General) QA273-280 Probabilities. Mathematical statistics TA401-492 Materials of engineering and construction. Mechanics of materials This paper reported the optimization of COD and NH3-N reduction from a stabilised leachate by zeolite (ZE) and moringa oleifera leaf powder (MP) mixture using response surface methodology (RSM) and central composite design (CCD). Quadratic polynomial equations were obtained for the removal process. An initial experiment was conducted to establish the optimum mixed ratio between ZE:MP and resulted in a ratio of 24:16. Independent variables investigated in the subsequent optimization experiments include pH ,dosage and contact time. The results revealed that the optimal reduction of COD and NH3-N from landfill leachate was considerable at pH 5.9 , optimal time of 113 minutes and 100gL-1 of adsorbent dosage with desirability value of 0.917. The upper limits for the actual versus predicted reduction were 70.14 against 69.13% and 86.94 against 86.55 % respectively for COD and NH3-N which defined that the experimental values were relatively close to the predicted values. The study also revealed that ZE:MP mixture has a very high potential for the remediation of COD and NH3-N from a stabilized leachate. Penerbit UTHM 2018 Article PeerReviewed text en http://eprints.uthm.edu.my/5012/1/AJ%202018%20%28815%29%20Application%20of%20Response%20Surface%20Methodology%20%28RSM%29%20to%20optimize%20COD%20and%20ammoniacal%20nitrogen%20removal%20from%20leachate%20using%20moringa%20and%20zeolit.pdf Daud, Zawawi and Abu Bakar, Mahmoud Hijab and Rosli, Mohd Arif and Ridzuan, Mohd Baharudin and Aliyu, Ruwaida (2018) Application of Response Surface Methodology (RSM) to optimize COD and ammoniacal nitrogen removal from leachate using moringa and zeolite mixtures. International Journal of Integrated Engineering, 10 (1). pp. 142-149. ISSN 2229-838X |
| spellingShingle | TA Engineering (General). Civil engineering (General) QA273-280 Probabilities. Mathematical statistics TA401-492 Materials of engineering and construction. Mechanics of materials Daud, Zawawi Abu Bakar, Mahmoud Hijab Rosli, Mohd Arif Ridzuan, Mohd Baharudin Aliyu, Ruwaida Application of Response Surface Methodology (RSM) to optimize COD and ammoniacal nitrogen removal from leachate using moringa and zeolite mixtures |
| title | Application of Response Surface Methodology (RSM) to optimize COD and ammoniacal nitrogen removal from leachate using moringa and zeolite mixtures |
| title_full | Application of Response Surface Methodology (RSM) to optimize COD and ammoniacal nitrogen removal from leachate using moringa and zeolite mixtures |
| title_fullStr | Application of Response Surface Methodology (RSM) to optimize COD and ammoniacal nitrogen removal from leachate using moringa and zeolite mixtures |
| title_full_unstemmed | Application of Response Surface Methodology (RSM) to optimize COD and ammoniacal nitrogen removal from leachate using moringa and zeolite mixtures |
| title_short | Application of Response Surface Methodology (RSM) to optimize COD and ammoniacal nitrogen removal from leachate using moringa and zeolite mixtures |
| title_sort | application of response surface methodology (rsm) to optimize cod and ammoniacal nitrogen removal from leachate using moringa and zeolite mixtures |
| topic | TA Engineering (General). Civil engineering (General) QA273-280 Probabilities. Mathematical statistics TA401-492 Materials of engineering and construction. Mechanics of materials |
| url | http://eprints.uthm.edu.my/5012/ http://eprints.uthm.edu.my/5012/1/AJ%202018%20%28815%29%20Application%20of%20Response%20Surface%20Methodology%20%28RSM%29%20to%20optimize%20COD%20and%20ammoniacal%20nitrogen%20removal%20from%20leachate%20using%20moringa%20and%20zeolit.pdf |