B.A.Sc., M.A.Sc.(Tor), Ph.D. ( Waterloo ), P.Eng.
Professor, Dept. of Chemical Engineering and Applied Chemistry, University of Toronto


Phone: (416) 978-8517
Fax:(416) 978-8605
Email: allendg@chem-eng.utoronto.ca

Research Areas

Bioprocess Engineering, Biological Waterwater Treatment, Biofiltration, Environmental Engineering, Pulp and Paper and Environment, Transport in bioreactors.

Consulting Activity

Technical advice on the treatment of wastewaters and air emissions, pulp and paper environmental issues and processes involving biological systems (cells, biosludges, enzymes, etc.).  Also provide analysis and advice in areas of technical expertise in support of insurance claims and litigation.  Provide advice to government on research tax credit claims and alternative dispute resolution.


D. Grant Allen is a Professor and Associate Chair in the Department of Chemical Engineering and Applied Chemistry at the University of Toronto. He obtained his B.A.Sc. (1981) and M.A.Sc.(1983) degrees Chemical Engineering at the University of Toronto , specializing in bioprocesses and biomedical engineering. Grant also worked with Esso Petroleum Canada before enrolling in a Ph.D. program in chemical engineering (specializing in biochemical engineering) at the U of Waterloo. In 1987, he joined the Department of Chemical Engineering and Applied Chemistry at the U of T. He is now Professor and Chair of the Department. He was also the Director of the Pulp & Paper Centre from July 2001 to 2003 and an Associate Director of the Center from 1989. In 1994 he spent his research leave with Weyerhaeuser’s Environmental Science and Technology group in Tacoma , WA.

Grant’s research interests are in the field of bioprocess engineering with emphasis on the biological treatment of waste waters, bioflocculation, biofiltration of air emissions, biofilms, microbiology of waste treatment, bioreactor design and biofouling. His interests apply to many industrial wastes although most of his work is in the Pulp and Paper industry. He has published more than 50 papers in refereed journals and has made many presentations and scholarly addresses. He also leads a research consortium involving ten companies and several professors and their students on minimizing environmental impacts in the pulp and paper industry.

Professor Allen provides technical advice on processes involving biological materials (e.g. cells, enzymes, etc.) and waste treatment (water and air) and environmental processes. He has provided advice and conducted research contracts in his areas of expertise for various manufacturing operations, engineering firms, insurance and legal firms and the Federal Government of Canada. He has extensive experience advising on scientific research tax credit claims for the Canadian government and has also received training in alternative dispute resolution.

Complete CV available upon request.