Traditional wastewater treatment requires energy inputs to remove carbon, nitrogen, and phosphorous without either recovering any of these resources or in many cases removing emerging contaminants. New, decentralized sanitation systems collect and then treat grey and black water separately to produce biogas, recover nutrients, deliver clean biosolids, and produce clean water. A major challenge to recovery and reuse of these resources is the presence of emerging contaminants in the outgoing products. Even trace concentrations of pharmaceuticals, hormones, and personal care products can diminish the quality and thus applicability of the fertilizers, biosolids, and effluent water. Wageningen University and DeSaR together challenge the team to design a system that recovers resources while removing emerging contaminants, and then consider the policy and business aspects related to implementation of such a system in Canada.
Wastewater is traditionally considered waste. Recently this view has been changed: wastewater has a lot to offer. It is plentiful stream of useful nutrients and chemical energy. To make use of these resources the current infrastructure and wastewater treatment plants needs to be updated. DeSaR and Wageningen University challenge the team to design an innovative decentralized sanitation system, which turns wastewater into useful and profitable resources by closing the cycles and harvesting all benefit.
Poster: WATER HOLISTICS – A Zero Effluent Decentralized Solution for Guelph
DeSaR & Wageningen University
Wetskills Canada 2014