Diploma in Engineering, Helsinki University of Technology, 1966. TeknLic, Helsinki University of Technology, 1969. Doctor of Technology, Helsinki University of Technology, 1973.
Lecturer Helsinki University of Technology, 1967-1969. Scholar Cambridge (England) University, 1969-1970. Assistant professor Åbo (Finland) Akademi, 1970-1973.
Senior consultant Linotek Consultant Engineering, Helsinki, 1973-1978. Group leader Battelle Geneva Research Center, 1978-1983. Research professor Technical Research Centre of Finland Chemical Technology, Finland, since 1983.
Director Technical Research Centre of Finland Non-Waste Research, Helsinki, 1986-1996. Visiting professor Lund (Sweden) University, since 1996. Science committee European Environmental Agency, Copenhagen, since 1996.
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Member Finnish Academy Technology Sciences, Swedish Academy Technology Sciences in Finland.
Son of Ulrica Christina Zilliacus, February 25, 1967. Children: Karatina, Sofie.