Due to the high carbon content of both wastewater and biodegradable wastes, biogas production by anaerobic digestion methods is applied at many points in the world and in our country. ATECH PROSES serves with the solutions it produces in industrial wastewater treatment plants for biogas production. Anaerobic treatment provides biogas, which is an efficient and usable by-product, as a result of the correct design, investment and operation process. The fact that biogas is produced does not mean that it can be used directly. Firstly, hydrogen sulphide (H2S) gas in the biogas content must be treated.