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 2: In-Sewer Processes 1 - H2S
Wednesday, 24/Aug/2022:
9:10am - 10:20am

Session Chair: Eran Friedler
Location: Lecture Hall BMT

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

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9:10am - 9:30am

Hydrogen sulfide control in force mains by in-situ electrochemical generation of dissolved ferrous iron

Asbjørn Haaning Nielsen1, Morten Lykkegaard Christensen2, Mads Koustrup Jørgensen2

1Department of the Built Environment, Aalborg University, Denmark; 2Department of Chemistry and Bioscience, Aalborg University, Denmark

In the present study, a method for sulfide control in sewer systems based on electrchemical oxidation of iron electrodes in the wastewater stream is presened. Both short term laboratory experiments and long term pilot scale experiments have been conducted. The experiments show that the electrochemical oxidation of iron electrodes produce ferrous iron at the anode, which effectively precipitates dissolved hydrogen sulfide. At the same time, alkalinity is generated at the cathode thereby increasing the efficiency of the precipitation process while at the same time making any remaining sulfide less volatile.

9:30am - 9:50am

Implementation of Sewer Ventilation and Process Modelling for Corrosion Control

Adrian Romero-Flores1, Matthew Ward2, Jes Vollertsen3

1Jacobs, United States of America; 2The WATS Guys, United Stated of America; 3Aalborg University, Denmark

  • Operation of odor control systems was improved using ventilation and process models.
  • Improvements also led to a reduction of estimated corrosion rates.

9:50am - 10:10am

Novel methodology for detecting blockages in waste water networks inspired by phase portrait principles

Ben Hamilton1, Slobodan Djordjevic1, Zoran Kapelan1,2

1University of Exeter, United Kingdom; 2Delft University of Technology, The Netherlands

- Presenting novel phase portrait methodology collecting evidence of waste water network blockages

- Novel methodology implemented on blockage case study made with Astlingen hydraulic model

- Integration of this method with control theory makes an automated blockage detection algorithm

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