Dr. Hans G. Valerius, European, is Consultant to Enigma Process Technologies Corp. in Las Pinas, Philippines. He spent nearly 25 years in Filtration with various filtration devices ranging from sheet filters to filter presses, belt presses and decanters as well as Nano, Ultra filtration and Reverse Osmosis. Having visited more than 70 countries throughout the continents he developed filtration processes for various products, invented a cooling membrane element (patented) and is now deeply involved in new technologies for treatment of waste as well as conversion of waste into profits aiming at zero waste solutions. He is frequently giving seminars within the South East Asian region and also publishing papers on this topic. He is consultant to Enigma Process Technologies Corp and advises and assists the company not only in process engineering in general but also in environmental issues.