|
|||||
|
|
Comparison of biostimulation and bioaugmentation for remediation of soil contaminated with spent motor oil |
|
| Authors: | S Abdulsalam MSc PhD I M Bugaje M Eng PhD S S Adefila MSc PhD S Ibrahim MSc PhD |
| Institution: | 1. Chemical Engineering Programme, Abubakar Tafawa Balewa University, Bauchi, Nigeria 2. Department of Chemical Engineering, University of Maiduguri, Borno State, Nigeria 3. Department of Chemical Engineering, Ahmadu Bello University, Zaria, Nigeria 4. Department of Biochemistry and Director Centre for Biotechnology, Ahmadu Bello University, Zaria, Nigeria |
| Abstract: | Aerobic fixed bed bioreactors were used to study and compare biostimulation and bioaugmentation for remediation of soil contaminated with spent motor oil. Bioaugmentation using consortium of bacteria and biostimulation using inorganic fertilizer and potassium dihydrogen orthophosphate were investigated. The bioremediation indicators used were the oil and grease content removals, total heterotrophic bacteria counts and carbon dioxide respiration rates. Results showed that biodegradations were very effective with 50, 66 and 75 % oil and grease content removal efficiencies for control, bioaugmentation and biostimulation respectively after ten weeks. Carbon dioxide respiration followed similar pattern as the oil and grease content removals. Biostimulation option has the highest carbon dioxide generation (6 249 mg/kg) and the control with the least (4 276 mg/kg). Therefore, the biostimulation option can be used to develop a realistic treatment technology for soils contaminated with spent motor oil. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |