Microorganisms in nature are largely responsible for the biodegradation & removal of toxic & non-toxic chemical. The main area of research in this group are Biodeterioration & Biosorption of industrial waster.

Biodegradation of crude oil

The investigation was based on the role of microorganisms & their capabilities to clean up to environment from pollution mainly caused by oil spill. These microorganisms isolated from Caspian Sea during 1994-1995.

Desulforization of crude oil

Organic sulfur in fossil fuel has lone been a major cause of environmental pollution. In Biotechnology Center of IROST we have isolated several local bacteria from soils of seven different region which contaminated with oil over years. About 52 isolates checked for their ability in biodesulfurization by Gibb’s assay. One of the strain showed sound effect on DBT. The strain identified as Rhodococcus sp. & designated as FMF. We still have to highlight the critical need for enzymological processes.

Decolourization of Textile Effluent By Aspergillus niger (marine & terrestrial)

Two types of A.niger, one was isolated from soil (A) & the other is a marine fungus (B) which was isolated from Gorgan bay, both the fungin showed a high capacity for rapid decolourization of textile wastewater. About 90-95% of dyes (Aro-reactive-sulfuric,pigmentous) were adsorbed from solutions by using the above mentioned fungi.

Decolorization of Textile Wastewater by Phanerochaete Chrysosporium

The environmental aspects of effluent from a textile plant were outlined by several publications have reported decolorization of dye solution by bacteria, Pseudomonas sp. and Bacillus coreas and by fungi (Moayedi and Mazaheri, 1998, Shahvali & Mazaheri, inpress). Biological decolorization has been attributed to biodegradation and fungal adsorption (Cripps et al 1990). Considerable decolorization (50-90%) of dye solutions by fungi occurs in the first 1-6 h and is probably primarily result of adsorption to the fungal biomass.