Document Details

Document Type : Thesis 
Document Title :
Bioremediation of Crude Oil-Contaminated Effluents from an Oil Refinery in Jeddah
المعالجة الحيوية لمياه الصرف الملوثة بالزيوت البترولية من محطة تكرير بترول – جدة
 
Subject : biological sciences department 
Document Language : Arabic 
Abstract : The main objective of the present study is investigating the bioremediation or minimization potential for oil wastes in the contaminated effluents before discharging into aquatic systems using ‎indigenous and/or exogenous bacteria. Water samples were collected from the final drainage of the contaminated effluents of an oil refinery located in Jeddah city, Saudi Arabia during the course of the study. Three indigenous isolated from oily wastewater effluent and 3 exogenous bacteria were identified using traditional biochemical profiling as well as molecular characterization and used in the remediation of that effluent as free living (batch mode) either individual or as mixed culture. Wastewater quality parameters including pH, temperature, DO, TSS, TDS, BOD, COD, FOG, and TPH oil content and bacterial TVC were determined before and after treatment and the removal efficiencies were calculated. Results indicated that the raw oily wastewater effluents used during this study had extremely high levels of all the tested parameters. This makes it one of the strongest industrial effluents that has high pollution potential and dangerous effects on the receiving environments and also creates many difficulties in its treatment. Batch treatment of tannery effluent for 7 days was time and bacterial species dependent with Pseudomonas stutzeri (PS) considered the most efficient for all the tested parameters. However, although high removals were achieved, the residual levels of all the parameters still above the MPL for the safe discharge. Therefore, enhancement of wastewater bioremediation took place using the most efficient bacterial strain under agitation which allows better contact with the contaminants for efficient biodegradation. Results indicated remarkable increases in the removal efficiencies although residuals of some contaminants stayed slightly higher than the safe discharging limits due to the short duration (12 h). Results of the present study highly recommend using bioremediation technology for removing hazardous oil hydrocarbons from contaminated media since it is efficient, cheap, fast, self-renewable, environmentally friendly and less hazardous than chemical treatment methods. 
Supervisor : dr.Ebtesam Abd El-Hamid El-Bestawy 
Thesis Type : Master Thesis 
Publishing Year : 1433 AH
2012 AD 
Co-Supervisor : Prof. Fahad Abdul Rahman Al-Fassi 
Added Date : Sunday, June 24, 2012 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
البندري ناصر القودةALGodah, ALBandary NassirResearcherMaster 

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