Grant: Engage Grants Program

International Wastewater Systems (IWS) has developed proprietary technologies to extract heat from municipalwastewater streams, and have established a strong presence in western Canada by partnering with industries,municipalities, and universities to provide domestic heat to public buildings, university residences etc.However, IWS has yet to develop a regional market in eastern Canada, largely as a function of nodemonstration projects in this geographic vicinity, and little experience with industrial wastewater streams aswork to date has focussed on municipal sources. While similarities between both waste streams exist (need forparticle filtration prior to heat exchanger entrance, reliable volumes and temperatures) differences remain (fecalmaterial vs wood fibre persistance, stability, percentange of solid constituents, presence of clays in paper millwastewater). Our project will identify the optimal candidate of several wastewater streams available at PortHawkesbury Paper (PHP) for suitability to trial IWS heat recovery systems. Such inexpensive heat would formthe basis of developing an eco-industrial park predicated on utilizing heat recovered from PHP waste streamsto dry filtered waste stream wood fibre (retentate) for pelletizing, and incorporating year-round shellfishaquaculture utilizing heated clean water transferred from filtrate wastewater (permeate) heat exchangers.