Hydrogen sulfide is an environmentally hazardous gas which is a by-product of many industrial processes such as oil refining, gas processing and wastewater treatment facilities. It can be found in many gas streams which are used as energy sources or chemical feedstocks. Industrially, even low amounts of this compound can affect the process efficiency and equipment life in industry. Hydrogen sulfide is an extremely toxic and irritating gas. It can affect the human health if it is inhaled or it comes in contact with eyes, skin, nose or throat. Oxidation of hydrogen sulfide and its incineration produce sulphur dioxide (SO2) which can be converted to sulphuric acid (H2SO4) with water and is one of the main reasons for acid rain [1-2]. Acid rain causes acidification of lakes and streams that kills aquatic animals and in addition, accelerates the soil erosion and decay of building materials and paints. For minimization of H2S gas on environment need to proper control of sulphur related compound and their raw materials which used in industry, for production of different materials. For the oxidation of H2S to sulphur activated carbon is best and effective catalyst for direct oxidation of hydrogen sulfide because of cheap and abundant precursors, highly developed porosity, and flexible surface chemistry [4-5]. Using this in air no bulky or waste material produces and requires no further purification. In other hand, microbiological oxidation can be used for feed with low H2S concentration by oxidizing hydrogen sulphide to elemental sulfur or to sulphate by using dissolved oxygen, metal oxides (e. g. iron oxyhyroxides and manganese oxides) or nitrate as oxidant. A variety of technologies are available to minimize H2S gas on environment from their sources [6-9]. The hydrogen sulfide can be minimizing by physical, chemical and biotechnological methods. Generally biotechnological methods are cheap and give higher efficiency and do not require any secondary treatments compared to the others methods.