Optimal conditions for bioremediation of oily seawater
To determine the influence of nutrients on the rate of biodegradation, a five-level, three-factor central composite design (CCD) was employed for bioremediation of seawater artificially contaminated with crude oil. Removal of total petroleum hydrocarbons (TPH) was the dependent variable. Samples wer...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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2010
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| Online Access: | http://scholars.utp.edu.my/id/eprint/2936/ http://scholars.utp.edu.my/id/eprint/2936/1/Optimal_conditions_for_bioremediation_of_oily_seawater.pdf |
| _version_ | 1848659327347326976 |
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| author | Zahed, M.A. Aziz, H.A. Isa, M.H. Mohajeri, L. Mohajeri, S. |
| author_facet | Zahed, M.A. Aziz, H.A. Isa, M.H. Mohajeri, L. Mohajeri, S. |
| author_sort | Zahed, M.A. |
| building | UTP Institutional Repository |
| collection | Online Access |
| description | To determine the influence of nutrients on the rate of biodegradation, a five-level, three-factor central composite design (CCD) was employed for bioremediation of seawater artificially contaminated with crude oil. Removal of total petroleum hydrocarbons (TPH) was the dependent variable. Samples were extracted and analyzed according to US-EPA protocols. A significant (R2 = 0.9645, P < 0.0001) quadratic polynomial mathematical model was generated. Removal from samples not subjected to optimization and removal by natural attenuation were 53.3% and 22.6%, respectively. Numerical optimization was carried out based on desirability functions for maximum TPH removal. For an initial crude oil concentration of 1 g/L supplemented with 190.21 mg/L nitrogen and 12.71 mg/L phosphorus, the Design-Expert software predicted 60.9% hydrocarbon removal; 58.6% removal was observed in a 28-day experiment. |
| first_indexed | 2025-11-13T07:28:40Z |
| format | Article |
| id | oai:scholars.utp.edu.my:2936 |
| institution | Universiti Teknologi Petronas |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-13T07:28:40Z |
| publishDate | 2010 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | oai:scholars.utp.edu.my:29362017-03-20T01:59:48Z http://scholars.utp.edu.my/id/eprint/2936/ Optimal conditions for bioremediation of oily seawater Zahed, M.A. Aziz, H.A. Isa, M.H. Mohajeri, L. Mohajeri, S. TD Environmental technology. Sanitary engineering To determine the influence of nutrients on the rate of biodegradation, a five-level, three-factor central composite design (CCD) was employed for bioremediation of seawater artificially contaminated with crude oil. Removal of total petroleum hydrocarbons (TPH) was the dependent variable. Samples were extracted and analyzed according to US-EPA protocols. A significant (R2 = 0.9645, P < 0.0001) quadratic polynomial mathematical model was generated. Removal from samples not subjected to optimization and removal by natural attenuation were 53.3% and 22.6%, respectively. Numerical optimization was carried out based on desirability functions for maximum TPH removal. For an initial crude oil concentration of 1 g/L supplemented with 190.21 mg/L nitrogen and 12.71 mg/L phosphorus, the Design-Expert software predicted 60.9% hydrocarbon removal; 58.6% removal was observed in a 28-day experiment. 2010-12 Article PeerReviewed application/pdf en http://scholars.utp.edu.my/id/eprint/2936/1/Optimal_conditions_for_bioremediation_of_oily_seawater.pdf Zahed, M.A. and Aziz, H.A. and Isa, M.H. and Mohajeri, L. and Mohajeri, S. (2010) Optimal conditions for bioremediation of oily seawater. Bioresource Technology, 101 (24). pp. 9455-9460. |
| spellingShingle | TD Environmental technology. Sanitary engineering Zahed, M.A. Aziz, H.A. Isa, M.H. Mohajeri, L. Mohajeri, S. Optimal conditions for bioremediation of oily seawater |
| title | Optimal conditions for bioremediation of oily seawater |
| title_full | Optimal conditions for bioremediation of oily seawater |
| title_fullStr | Optimal conditions for bioremediation of oily seawater |
| title_full_unstemmed | Optimal conditions for bioremediation of oily seawater |
| title_short | Optimal conditions for bioremediation of oily seawater |
| title_sort | optimal conditions for bioremediation of oily seawater |
| topic | TD Environmental technology. Sanitary engineering |
| url | http://scholars.utp.edu.my/id/eprint/2936/ http://scholars.utp.edu.my/id/eprint/2936/1/Optimal_conditions_for_bioremediation_of_oily_seawater.pdf |