Biodesulfurization of dibenzothiophene by immobilized cells of Pseudomonas stutzeri UP-1

• Published in: Fuel (Guildford) Vol. 84; no. 14; pp. 1975 - 1979
• Main Authors: Hou, Yingfei, Kong, Ying, Yang, Jinrong, Zhang, Jianhui, Shi, Deqing, Xin, Wei
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01-10-2005; Elsevier
• Subjects: Air pollution caused by fuel industries; Applied sciences; Biodesulfurization; Dibenzothiophene; Energy; Energy. Thermal use of fuels; Exact sciences and technology; General. Regulations. Norms. Economy; Immobilized cells; Pseudomonas stutzeri; Pseudomonas stutzeri UP-1; Sodium alginate; Biodesulfurization; Immobilized cells; Sodium alginate; Pseudomonas stutzeri UP-1; Dibenzothiophene; Pseudomonadales; Desulfurization; Air pollution control; Stability; Oil field; Biological method; Pseudomonas stutzeri; Bacteria; Pseudomonadaceae
• ISSN: 0016-2361; 1873-7153
• DOI: 10.1016/j.fuel.2005.04.004

Immobilization of the bacterium
Pseudomonas stutzeri UP-1 was isolated from soil and sewage in the Shengli Oilfield. Biodesulfurization (BDS) of dibenzothiophene (DBT) was carried out using immobilized
P. stutzeri UP-1 (CGMCC No. 0974) in model system. The results show that sodium alginate (SA) is an appropriate material of immobilization. The optimized operation immobilization condition was 4
°C; the concentration of SA was 3% (w/v); and the ratio of SA (ml) to cells (g) was 20. The stability and life-time of immobilized cells were much better than those of the non-immobilized cells. The life-time of immobilized cells could reach 600
h by reactivation.