Performance evaluation of real time control in urban wastewater systems

This thesis deals with real time control (RTC) in urban wastewater systems, where<br/>urban wastewater systems are defined as a combination of combined sewer systems and wastewater treatment plants (WWTPs). Urban wastewater systems discharge, through combined sewer over flows (CSOs) and WWTP effluent, onto the receiving waters. Receiving waters...

Evaluatie van sturing in stedelijke afvalwatersystemen: Samenvatting proefschrift Petra van Daal-Rombouts

Dit is de Nederlandstalige samenvatting van het proefschrift ‘Performance evaluation of real time control in urban wastewater systems’ van Petra van Daal-Rombouts. Met haar promotie op 22 september 2017 is zij de vierde om een promotieonderzoek met succes af te ronden binnen het Kennisprogramma Urban Drainage. Dit door de afvalwatersector...

Empirical Sewer Water Quality Model for Generating Influent Data for WWTP Modelling

Wastewater treatment plants (WWTP) typically have a service life of several decades. During this service life, external factors, such as changes in the effluent standards or the loading of the WWTP may change, requiring WWTP performance to be optimized. WWTP modelling is widely accepted as a means to assess and optimize WWTP performance. One of...

Performance evaluation of a smart buffer control at a wastewater treatment plant

Real time control (RTC) is increasingly seen as a viable method to optimise the functioning of wastewater systems. Model exercises and case studies reported in literature claim a positive impact of RTC based on results without uncertainty analysis and flawed evaluation periods. This paper describes two integrated RTC strategies at the wastewater...

Performance evaluation of real time control in urban wastewater systems in practice: Review and perspective

Real time control (RTC) is generally viewed as a viable method for optimising the performance of urban wastewater systems. A literature review on the performance evaluation of RTC demonstrated a lack of consensus on how to do this. Two main deficiencies were identified: omitting uncertainty analysis and applying limited evaluation periods. A...

Design and performance evaluation of a simplified dynamic model for combined sewer overflows in pumped sewer systems

Optimisation or real time control (RTC) studies in wastewater systems increasingly require rapid simulations of sewer systems in extensive catchments. To reduce the simulation time calibrated simplified models are applied, with the performance generally based on the goodness of fit of the calibration. In this research the performance of three...

Integrated real time control of influent pumping station and primary settling tanks at WWTP Eindhoven

This research deals with the design and implementation of an integrated control for the WWTP of Eindhoven. The control influences the operation of the primary settling tanks and influent pumping station to reduce reduce ammonia peaks in the WWTP effluent. The control takes into account the treatment capacity of the biological tanks, the influent...

Integrated real time control of SST operation at WWTP Eindhoven: Design and gain

Promotieonderzoek naar sturing in het afvalwatersysteem

A New Empirical Sewer Water Quality Model for the Prediction of WWTP Influent Quality

Modelling of the integrated urban water system is a powerful tool to optimise wastewater system performance or to find cost-effective solutions for receiving water problems. One of the challenges of integrated modelling is the prediction of water quality at the inlet of a WWTP. Recent applications of water quality sensors have resulted in the...

Applicability of CFD Modelling in Determining Accurate Weir Discharge: Water Level Relationships

Being able to accurately determine weir discharges is of key importance in urban water management. The most common method is performing a level measurement and calculating the discharge using the standard weir equation. Since this equation is only valid in certain conditions, this can lead to large deviations from the actual discharge. In this...

CSO pollution analysis based on conductivity and turbidity measurements and implications for application of RTC

The objective of this paper is to demonstrate the applicability of, and need for, surrogate sensors as robust sensors for water quality based RTC. For this purpose 1.5 years of level, conductivity (EC) and turbidity (TU) measurements at 9 combined sewer overflow (CSO) locations have been performed and analysed to determine the most polluted CSO...

Determining the transition between DWF and WWF based on water quality measurements

Congresverslag Urban Drainage Modelling 9 te Belgrado

Van 3 tot en met 7 september 2012 is de negende Urban Drainage Modelling conferentie gehouden in Belgrado, de hoofdstad van Seme. Hieronder volgt een verslag van de indrukken die zijn opgedaan in Servië en de belangrijkste, wetenschappelijke ontwikkelingen die aan de orde zijn gekomen. Het congres had een vol wetenschappelijk programma, mede...

Water quality based RTC using UV/VIS sensors (extended abstract)

Kallisto is a large scale research project at water board De Dommel in The Netherlands, in cooperation with several partners (Weijers et al, 2011). It consists of quantitative and qualitative continuous on line measurements and extended modelling of the WWTP (Waste Water Treatment Plant) Eindhoven, the contributing sewer systems and the river...