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Astlingen - a benchmark for real time control (RTC).

Manfred Schütze1, Maja Lange2, Michael Pabst3

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Summary
This summary is machine-generated.

Real-time control (RTC) in drainage systems offers significant overflow reduction benefits. Implementing RTC within the sewer system alone is nearly as effective as increasing wastewater treatment plant inflow, demonstrating its value.

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Area of Science:

  • Environmental Engineering
  • Water Resource Management
  • Wastewater Treatment

Background:

  • The German Water Association's 'Integral Real Time Control' working group developed the Astlingen example as a benchmark.
  • Existing benchmarks are crucial for evaluating real-time control (RTC) strategies in drainage systems.
  • Educational tools are needed to illustrate RTC concepts for drainage systems.

Purpose of the Study:

  • To present an updated Astlingen example for RTC strategy evaluation and education.
  • To analyze the feasibility and benefits of temporarily increasing wastewater treatment plant (WWTP) inflow.
  • To compare the effectiveness of sewer system RTC versus increased WWTP inflow on overflow reduction.

Main Methods:

  • Utilized the updated Astlingen benchmark example for simulations.
  • Implemented a simple RTC algorithm to demonstrate core concepts.
  • Conducted a preliminary analysis of increased WWTP inflow scenarios.

Main Results:

  • RTC within the sewer system alone significantly reduced overflow volumes.
  • The overflow reduction achieved by sewer system RTC was comparable to a 6-hour temporary increase in WWTP inflow.
  • The study highlights the potential of sewer-based RTC as a viable alternative to altering WWTP operational parameters.

Conclusions:

  • Sewer system RTC is a highly effective strategy for mitigating drainage system overflows.
  • The Astlingen benchmark provides a valuable educational and evaluation tool for RTC.
  • Prioritizing sewer system RTC can achieve substantial environmental benefits with potentially lower implementation complexity compared to WWTP inflow modifications.