Hydrogen sulfide (H2S) is generated in the process of anaerobic treatment of organic matter containing sulfur and anaerobic reduction of sulfate by sulfate reducing bacteria. Hydrogen sulfide is evolved as a gaseous pollutant from geothermal waters, natural spring, volcanoes, petroleum production, chemical plants, paper mills, textile mills and tannery (Manahan, 2000; Ledgard, 2006). Besides, it […]