Journal
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
Volume 43, Issue 3, Pages 314-325Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/15567036.2019.1624884
Keywords
Kitchen waste oil; oil-based drilling cuttings; oil recovery; response surface method; optimization
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The study found that biosurfactant from Pseudomonas aeruginosa has a high concentration in kitchen waste oil and is effective in washing oil-based drilling cuttings. The main influencing factors of oil recovery were identified and the maximum recovery rate was predicted through optimization, indicating a promising prospect for biosurfactant application in industrial oil recovery.
The maximum biosurfactant concentration of 5.98 g L-1 was achieved from kitchen waste oil by Pseudomonas aeruginosa. Then, biosurfactant was extracted from the broth and applied to wash oil-based drilling cuttings. Effect rules of six parameters on oil recovery were investigated separately, and the main influencing factors of concentration, pH, and temperature were screened out by Plackett-Burman design. And then the oil washing conditions were optimized by response surface method. The maximum recovery rate was predicted to be 70.48% with the relative error less than 0.006%. The results indicating promising prospect of biosurfactant application in industrial oil recovery.
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