1. Prof.; Dept. of Chem. Engrg., McMaster Univ., Hamilton, ON, Canada; and Process Consultant, T.W. Beak Consultants, Ltd., Montreal, QC, Canada
2. Process Engr.; Pollutech, Oakville, ON, Canada; formerly, Process Engr., T.W. Beak Consultants, Ltd., Toronto, ON, Canada