%0 Journal Article %T Anaerobic Oxidation of Hydrogen Sulfide in Batch Bioreactor Using Micro Organism Isolated from Ramsar Hot Spring %A Ali Alemian %A Ghasem D. Najafpour %A Maryam khavarpour %A Ali-Asghar Ghoreyshi %J Iranica Journal of Energy and Environment (IJEE) %D 2012 %I IDOSI %X Removal of hydrogen sulfide from mixed gas was successfully carried out in a batch reactor. The isolated microorganism from Ramsar hot spring was cultured and adapted in an environment with hydrogen sulfide. At 35¡æ, maximum cell dry weight was 0.43 g/l. For the hydrogen sulfide removal, effect of temperature in the range of 25 to 45¡æ was investigated. The experimental results showed that the removal efficiency significantly increased with an increase in temperature from 25 to 35¡æ, then; a slightly decrease in media temperature at 45¡æ appeared. Maximum and minimum removal efficiencies of hydrogen sulfide were 72 and 25%, respectively. At 35¡æ, based on first order biochemical kinetic; the rate of substrate utilization was 0.06 h-1. %K Hydrogen sulfide %K Removal efficiency %K Substrate utilization %K Ramsar hot spring %K Sulfur oxidizing bacteria %U http://www.ijee.net/Journal/ijee/vol3/no2/3.pdf