Focuses on the biofiltration technique developed by researchers from the University of Toronto in Ontario that uses bacteria to eat odorous sulfur pollutants from paper mills. Materials used.
Reports on American and Canadian chemical producers and paper manufacturers formation of the Alliance for Environmental Technology (AET). AET's promotion of chlorine dioxide (ClO2) derived from sodium chlorate as an alternative to chlorine gas; Sodium chlorate producers in the AET; Environmental Protection Agency's and its Canadian counterpart's scheduling of effluent guidelines for pulp and paper mills at the end of October 1993.