Sulfur emission from coal combustion presents many environmental problems. The techniques used to reduce the amount of sulfur in coal before combustion, include physical, chemical and biological processes.Biological processes based on degradation of sulfur compounds by microorganisms offer many advantages over the conventional physical and chemical processes. The processes are performed und...

BACKGROUND Sulfur oxides released from the burning of oil causes severe environmental pollution. The sulfur can be removed via the 4S pathway in biodesulfurization (BDS). Immobilization approaches have been developed to prevent cell contamination of oil during the BDS process. OBJECTIVES The encapsulation of Rhodococcus erythropolis R1 in calcium alginate beads was studied in order to enhance...

the biodesulfurization (bds) of sulfur compounds in fossil fuels is a process to reduce sulfur dioxide emissions that cause environmental pollution. gordonia alkanivorans ripi90a is able to convert dibenzothiophene, an organic sulfur compound in petroleum, to 2-hydroxybiphenyl (2-hbp) in 4s pathway. in this study, (dbt), dsza and dszb, dbt sulfone monooxygenase, and desulfinase were respectivel...