As suppliers of exhaust air, waste gas and process gas purifying systems we have been competent partner in all questions of environmental protection for many decades. We offer proven technology and system approaches under economic and ecological criteria. EWK UMWELTTECHNIK GMBH, a company with tradition EWK is a medium sized company with a tradition for 150 years. The company was created in 1868 of Albert Munzinger and later renamed ZSCHOCKE WERKE by the new owner, Gottfried Zschocke. At the time the ZSCHOCKE company was already well-known far beyond Kaiserslautern, Rheinland-Pfalz and Germany, particular for its wooden cooling towers for water recooling and combined gas purification systems