Conference Agenda

Overview and details of the sessions of this conference. Please select a date or location to show only sessions at that day or location. Please select a single session for detailed view (with abstracts and downloads if available).

Session Overview
Plenary 7: Emerging Issues and New Technologies 2 - Approaches and Techniques
Thursday, 25/Aug/2022:
8:50am - 10:20am

Session Chair: Thomas Walter Ertl
Location: Lecture Hall BMT

BMTEG138 (HS BMT), Biomedical Engineering Building at Stremayrgasse 16, 8010 Graz, ground floor

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8:50am - 9:10am

Future of Food Waste Disposers: what is the potential for energy recovery at wastewater treatment plants?

Abigail Legge, Henriette Jensen, Andy Nichols, Simon Tait, Richard Ashley

University of Sheffield, United Kingdom

Foodwaste disposers provide a disposal route for consumers that could contribute to circular economy opportunities. This eliminates handling of foodwaste and makes use of existing anaerobic digestion facilities at many treatment works. During in-sewer transport organic matter is utilised by heterotrophic microorganisms. The amount of organic matter that will be turned into CO2 during in-sewer transport needs to be estimated to understand the energy recovery potential. A mass balance can be used to estimate how much anaerobic digestion can be boosted by foodwaste. The presented experiments determine the COD of food waste and the rate of in-sewer degredation.

9:10am - 9:30am

Experimental evaluation of the storm water control performance of a modular blue roof in Mediterranean climate.

Alberto Campisano, Aurora Gullotta, Carlo Modica, Fabrizio Musmeci

University of Catania, Italy

The paper discusses results of the long-term monitoring of a full-scale pilot installation of a modular blue roof (BR) for the control of the runoff from the roof terrace of a building in the campus of the University of Catania (Italy). The BR was installed in one catchment of the rooftop while another symmetrical catchment was left unmodified and monitored to allow comparison. Results of the analysis have shown average 54% retention efficiency and 72% detention efficiency of the BR. The BR always overperformed the conventional roof, with mean 34% runoff reduction and mean 60% flow peak attenuation.

9:30am - 9:50am

From household inflows to the WRRF: modelling thermal-hydraulic dynamics with a hybrid framework

Alejandro Figueroa, Bruno Hadengue, Jörg Rieckermann

Eawag, The Swiss Federal Institute of Aquatic Science and Technology, Switzerland

We present a framework based on WaterHub, MINUHET and SWMM-HEAT that enables thermal-hydraulic simulations from household inflows to the wastewater resource recovery facility. We validate the framework with real-world data across seasons and precipitation events. In addition, we analyse how decentralized heat recovery devices impact wastewater temperatures at the WRRF during precipitation events.

9:50am - 10:10am

Automatic generation and design of realistic sewer networks based on open access data

Julian David Reyes-Silva, Diego Novoa, Björn Helm, Peter Krebs

TU Dresden, Germany

Data for the proper development of urban drainage models is not always available or accessible. To overcome this, several approaches have focused on generating virtual UDNs with similar properties as real systems. However, they are not adequate to analyze local processes (e.g. urban flooding), since they generate systems with generic layouts or properties. In this context, the present work focuses on developing a tool to automatically generate and design more realistic sewer networks based on open access data. Results suggest that the tool is able to generate drainage systems with realistic hydraulic and spatial characteristics