Frank Peter Helmus studied chemical engineering in Aachen, Germany and obtained the PhD for his work on membrane processes. Afterwards he worked as a project manager in the Babcock Balcke-Durr Company. During his industrial career he carried out several medium sized projects (waste water treatment plants up to 18 million Euro), some of them abroad, as a project manager from the beginning to the end. Since 1998 he is professor for chemical engineering at the University of Applied Sciences in Osnabr?is main field of activity is mechanical processes and process plant design. He is related to his