Aquaponics OPTI: sustainable food production
Sustainable food production depends on the recovery of water, energy, and nutrients from waste streams within existing supply chains. Greenhouse hydroponic systems (HYP) and recirculating aquaculture systems (RAS) are two intensive food production systems that in combined production as an aquaponics system (AP) can utilize fish wastes as fertilizers, while recycling water and energy to increase both systems’ sustainability and efficiency.
EarthLab announced their Innovation Grants for 2024-25 for projects focused on Climate and Social Justice. The awardees were announced in March 2024, and 2 of the 5 selected projects include CBE researchers. Project Title: Catalyzing Just Circular Communities: A Feasibility Study of a Large-Scale Anaerobic Biodigester to Generate Hyper-local, Community-Owned Clean Energy Infrastructure in Seattle’s South Park CBE Team Members: Catherine De Almeida, Associate Professor, Landscape Architecture; Gundula Proksch, Associate Professor, Architecture. Project Title: Healing Amazonian Soils with Science and…
Associate Professor of Architecture Gundula Proksch has been awarded the ARCC Mid-Career Research Impact Award, which recognizes outstanding performance and substantive impact in architectural research. Awardees are selected by the ARCC Board. Associate Professor Proksch’s NSF project CITYFOOD is mentioned in her recognition, as well as her book “Creating Urban Agricultural Systems: An Integrated Approach to Design” (Routledge, 2016). See the announcement story here.
The CBE Inspire Fund Awardees for the 2024 cycle have been selected! Their project names and team members are outlined below. Title: Mycelium Grow Lab for Student-led Research Team: Gundula Proksch (Associate Professor, Architecture), Tyler Sprague (Associate Professor, Architecture) Title: Exhibition of the works of OUR: Office of (Un)certainty Research Team: Vikram Prakash (Professor, Architecture) Title: Emergence, Resilience, and Future(s) of Urban Informality in Seattle Team: Julie Johnson (Associate Professor, Landscape Architecture), Manish Chalana (Associate Professor, Urban Design and Planning)…
At the end of October, Urban@UW hosted the first ½-day Research to Action Collaboratory workshop session for more learning, sharing and productivity. The Just Circular Communities team attended and focused on solidifying and growing their network of community partners. The team is also working to build a broader definition of “circular economy.” Read more about the October workshop session here. —– May 18, 2023: College of Built Environments researchers are selected for inaugural cohort of the Urban@UW Research to Action…
Sun, F., Whittington, J., Ning, S., Proksch, G., Shen, Q., & Dermisi, S. (2023). Economic resilience during COVID-19: the case of food retail businesses in Seattle, Washington. Frontiers in Built Environment, 9. https://doi.org/10.3389/fbuil.2023.1212244
The first year of COVID-19 tested the economic resilience of cities, calling into question the viability of density and the essential nature of certain types of services. This study examines built environment and socio-economic factors associated with the closure of customer-facing food businesses across urban areas of Seattle, Washington. The study covers 16 neighborhoods (44 census block groups), with two field audits of businesses included in cross-sectional studies conducted during the peak periods of the pandemic in 2020. Variables describing businesses and their built environments were selected and classified using regression tree methods, with relationships to business continuity estimated in a binomial regression model, using business type and neighborhood socio-demographic characteristics as controlled covariates. Results show that the economic impact of the pandemic was not evenly distributed across the built environment. Compared to grocery stores, the odds of a restaurant staying open during May and June were 24%, only improving 10% by the end of 2020. Density played a role in business closure, though this role differed over time. In May and June, food retail businesses were 82% less likely to remain open if located within a quarter-mile radius of the office-rich areas of the city, where pre-pandemic job density was greater than 95 per acre. In November and December, food retail businesses were 66% less likely to remain open if located in areas of residential density greater than 23.6 persons per acre. In contrast, median household income and percentage of non-Asian persons of color were positively and significantly associated with business continuity. Altogether, these findings provide more detailed and accurate profiles of food retail businesses and a more complete impression of the spatial heterogeneity of urban economic resilience during the pandemic, with implications for future urban planning and real estate development in the post-pandemic era.
College of Built Environments researchers are selected for inaugural cohort of the Urban@UW Research to Action Collaboratory (RAC). Throughout the next 18 months, Urban@UW will work with these teams and provide seed funds, dedicated time to build team cohesion and collaboration skills, and foster opportunities for peer support and shared resources and learning. The project below was one of two projects selected for this cohort. See the full story here. Just Circular Communities: A Resiliency Framework to Support a Just…
An interdisciplinary research team led by University of Washington Chemistry Professor Alshakim Nelson received $2 million in funding from the National Science Foundation’s Emerging Frontiers in Research and Innovation (EFRI) program. The funding will be used to combine engineered microorganisms with 3D printing to create materials for sustainable built environments. This grant will provide funding to researchers at UW, the University of Texas at Austin, and University of California Davis over four years. In addition to Nelson, the team also…
Baganz, Gösta; Proksch, Gundula; Kloas, Werner; Wolf Lorleberg; Baganz, Daniela; Staaks, Georg; Lohrberg, Frank. (2020). Site Resource Inventories – A Missing Link in the Circular City’s Information Flow. Advances In Geosciences, 54, 23-32.
A circular city builds upon the principles of circular economy, which key concepts of reduce, reuse, recycle, and recover lead to a coupling of resources: products and by-products of one production process become the input of another one, often in local vicinity. However, sources, types and available quantities of underutilised resources in cities are currently not well documented. Therefore, there is a missing link in the information flow of the circular city between potential users and site-specific data. To close this gap, this study introduces the concept of a site resource inventory in conjunction with a new information model that can manage the data needed for advancing the circular city. A core taxonomy of terms is established as the foundation for the information model: the circular economy is defined as a network of circular economy entities which are regarded as black boxes and connected by their material and energy inputs and outputs. This study proposes a site resource inventory, which is a collection of infrastructural and building-specific parameters that assess the suitability of urban sites for a specific circular economy entity. An information model is developed to manage the data that allows the entities to effectively organise the allocation and use of resources within the circular city and its material and energy flows. The application of this information model was demonstrated by comparing the demand and availability of required alternative resources (e.g. greywater) at a hypothetical site comprising a commercial aquaponic facility (synergistic coupling of fish and vegetables production) and a residential building. For the implementation of the information model a proposal is made which uses the publicly available geodata infrastructure of OpenStreetMap and adopts its tag system to operationalise the integration of circular economy data by introducing new tags. A site resource inventory has the potential to bring together information needs and it is thus intended to support companies when making their business location decisions or to support local authorities in the planning process.
Digital Mapping; Economics; By Products; Aquaponics; Economic Conditions; Fish; Spatial Data; Consumers; Food; Infrastructure; Energy Flow; Greywater; Information Flow; Biogas; Consumption; Residential Buildings; Taxonomy; Data; Resources; Sustainable Development; Urban Areas; Cities; Coupling
Horn, Erin; Proksch, Gundula. (2022). Symbiotic And Regenerative Sustainability Frameworks: Moving Towards Circular City Implementation. Frontiers In Built Environment, 7.
Growing in popularity, the circular city framework is at the leading-edge of a larger and older transitional dialogue which envisions regenerative, circular, and symbiotic systems as the future of urban sustainability. The need for more research supporting the implementation of such concepts has been often noted in literature. To help address this gap, this holistic review assesses a range of pertinent sustainability frameworks as a platform to identify actionable strategies which can be leveraged to support and implement circular city goals. This assessment is grounded in a holistic overview of related frameworks across interdisciplinary and scalar domains including circular city, the food-water-energy nexus, circular economy, bioeconomy, industrial symbiosis, regenerative design, and others. Building on these interrelationships, the applied strategies espoused within these publications are synthesized and assessed in the context of circular city implementation. From an initial 250 strategies identified in literature, thirty-four general implementation strategies across six thematic areas are distinguished and discussed, finding strong overlaps in implementation strategies between frameworks, and opportunities to further develop and harness these synergies to advance circular city toward sustainable urban futures.
Circular City; Implementation Strategies; Literature Review; Circular Economy; Fwe-nexus; Regenerative Design; Systems Integration; Environmental Assessment; Rooftop Greenhouses; Anaerobic-digestion; Urban Agriculture; Built Environment; Waste Management; Climate-change; Carbon Nexus; Food Nexus; Economy