Earticle

초록

영어

Pseudomonas aeruginosa have been known as one of biosurfactant producers. We have been utilizing P. aeruginosa to utilize glycerol waste from a palm oil industry, whey waste from dairy industry and used cooking oil to produce biosurfactant. The aim of this research is to lower the oil-water surface tension of oil trapped in rock pores of an oil well, known as Microbial Enhanced Oil Recovery. Previous application of our biosurcfactant in several wells (P-02 and P-03) observed changes in the surface tension of oil-water. Inoculation in both wells were made in anaerobic conditions. Population of microbes, nutrients and pH and its influence on the surface tension changes were observed in the period 0-72 hours. Decline in the oil-water surface tension was observed for wells P-02 at 72 that was equal to 23.7%. As for the P-03 wells at 24 it was equal to 39.5%. Observations indicate the formation of salts of organic acids and inorganic electronics afterward for both wells, rendering increase in the surface tension. Because of differences in the characteristics of the two wells, there was no obvious relationship between various parameters that were observed. The acidity of the two wells was sufficient to support microbial activity in the range pH 6.7 to 7.8 scale. Nutritional changes did not show any significant changes in surface tension. P-02 wells microbes consumed more sulfate and phosphate. On going research is utilizing ozone to increase the substrate availability of wastes.

저자

• Misri Gozan [ Industrial Bioprocess Engineering Research Group, Chemical Engineering Department, Faculty if Technology, Universitas Indonesia, Kampus UI Depok 16424. ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국생물공학회 학술대회

• 간기

  반년간

• 수록기간

  1985~2013

• 십진분류

  KDC 476 DDC 576