STUDY ON EFFECTS OF DO OIL AND BDF TO SOME MARINE ORGANISMS IN SEA WATER OF VIETNAM

Abstract

    This paper presents the results of studying the effects of natural mineral oils DO and biodieselfuels BDF1 of Vietnam and BDF2 of Japan to the development of some types of marineorganisms. The some aerobic bacteria, yeast and mold in sea water were selected for study.The results showed that the present of DO (from 200mg/L to 500mg/L) has inhibitation ofgrowth of aerobic bacteria. Biodiesel fuel contents of BDF1 and BDF2 become a foodsource, causing the growth of aerobic bacteria from 10 to 15 times higher than the controlsample. The present of DO make the development of the yeast 2 times higher, while BDF1and BDF 2 make the development of yeast about 12 times higher. DO make the mold growthis 1.4 times higher, but BDF1 and BDF2 make the mold growth about 2.6 times highercompared with reference sample in about 27 days the survey. The biological effects of oilBDF1 of Vietnam and BDF2 of Japan were similar in experiments.

Key word: biodiesel fuel, bacteria, diesel oil, impact, sea water.