Biodesulfurization of Turkish lignites .2. Microbial desulfurization of Mengen lignite by the mesophilic microorganism Rhodococcus rhodochrous

Durusoy T., Bozdemir T., Erincin E., Yurum Y.

FUEL, vol.76, no.4, pp.341-344, 1997 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 76 Issue: 4
  • Publication Date: 1997
  • Doi Number: 10.1016/s0016-2361(96)00237-2
  • Journal Name: FUEL
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.341-344
  • Keywords: lignite, biodesulfurization, Rhodococcus rhodochrous, SULFOLOBUS-SOLFATARICUS, DIBENZOTHIOPHENE
  • Hacettepe University Affiliated: Yes

Abstract

The effects of substrate type in the growth medium, mixing time of lignite into the growth medium and the biodesulfurization time on sulfur removal were studied. Biodesulfurization experiments were carried out with Mengen lignite under optimum growth conditions of Rhodococcus rhodochrous. The highest reduction of organic sulfur forms was 27.1% when sodium acetate was the substrate. Sulfate sulfur could be totally reduced when lignite was added to the culture medium 24h after incubation. Compared with sodium acetate, glycerol yielded higher sulfate sulfur reduction rates when lignite was added at the time of incubation. The highest organic sulfur removal rates were found when sodium acetate was the substrate. (C) 1997 Elsevier Science Ltd.