The German Association for Water, Wastewater and Waste (DWA) is one of the largest professional organizations in the field of water management, wastewater and Waste disposal in Germany and Europe. It is committed to sustainable and environmentally sound use and management of water as a resource. It pursues the goal, improve the quality of water, promote water protection and ensure efficient and economical wastewater and waste disposal. The DWA develops technical regulations and standards for water management, wastewater and waste disposal and assists members with implementation. It is also active in political lobbying and is committed to a modern and future-oriented water management. The association is an important partner for industry, public administration and science and contributes to the fact that Germany and Europe in the water management take a pioneering role. The DWA has over 14,000 members from science, practice and administration and is represented in 15 Country associations divided. Sole shareholder and managing director of Klärgastechnik Deutschland GmbH has been a member of the technical committee of this Association and through his profound expertise a much appreciated co-author of the Rules and regulations for gas technology at wastewater treatment plants