Aeration Control with Gain Scheduling in a Full-scale Wastewater Treatment Plant

  title={Aeration Control with Gain Scheduling in a Full-scale Wastewater Treatment Plant},
  author={Linda {\AA}mand and Bengt Carlsson},
  journal={IFAC Proceedings Volumes},
Abstract Process control is important at wastewater treatment plants to meet effluent criteria and minimise resource use. In a nitrogen removal plant, the aeration costs in the biological treatment part constitute the largest single electricity user at the plant. This study has investigated gain scheduling PI control at the Kappala wastewater treatment plant in full-scale operation and by simulation using a calibrated model of the plant. The aim was to vary the controller settings based on the… 

Proportional-Integral Ammonium-based Aeration Control for Activated Sludge Process

Most of the earlier research working on the aeration control of the activated sludge process (ASP) utilized the fixed dissolved oxygen (DO) concentration control strategy. This strategy typically

Aeration Process in Bioreactors as the Main Energy Consumer in a Wastewater Treatment Plant. Review of Solutions and Methods of Process Optimization

Due to the key role of the biological decomposition process of organic compounds in wastewater treatment, a very important thing is appropriate aeration of activated sludge, because microorganisms

Improving total nitrogen removal using a neural network ammonia-based aeration control in activated sludge process

Abstract Aeration control is a way to have a wastewater treatment plant (WWTP) that uses less energy and produces higher effluent quality to meet state and federal regulations. The goal of this

Neural Network Ammonia-Based Aeration Control for Activated Sludge Process Wastewater Treatment Plant

The paper proposes an improved effluent control for the operation of a biological wastewater treatment plant using a neural network ammonia-based aeration control. The main advantage of this control

Modelling AOB-NOB competition in shortcut nitrification compared with conventional nitrification-denitrification process

In particular, mainstream deammonification and/or shortened nitrification-denitrification via nitrite (so-called “nitrite shunt”) is a promising new treatment concept that has the potential to



Benchmarking of Control Strategies for Wastewater Treatment Plants

Wastewater treatment plants are large non-linear systems subject to large perturbations in wastewater flow rate, load and composition. Nevertheless these plants have to be operated continuously,

Aeration control - a review.

  • L. ÅmandG. OlssonB. Carlsson
  • Engineering
    Water science and technology : a journal of the International Association on Water Pollution Research
  • 2013
This review focuses on published research in the 21st century and describes research into various methods to decide and control the dissolved oxygen (DO) concentration and to control the aerobic volume with special focus on plants with nitrogen removal.

Improving oxygen concentration control in activated sludge process with estimation of respiration and scheduling control.

  • S. GerkšičD. VreckoN. Hvala
  • Engineering
    Water science and technology : a journal of the International Association on Water Pollution Research
  • 2006
An efficient and simple model-based method of on-line estimation of respiration from the current values of dissolved oxygen concentration and airflow signals is presented, where the estimated respiration signal is used for scheduling of the PI controller parameters, by using local linearization of the process dynamics.

Aeration of large-scale municipal wastewater treatment plants: state of the art.

Results obtained with clean- and process-water tests are used to show the beneficial effects of high MCRT operations, the beneficial effect of selectors, and the decline of aeration efficiency due to dissolved surfactants.

Ammonium Feedback Control in Wastewater Treatment Plants

The aeration process is often the single largest consumer of electricity in a wastewater treatment plant. Aeration in biological reactors provides microorganisms with oxygen which is required to co

Parameter scheduling in ammonium feedback control

Parameter scheduling is a method to change controller settings depending on the process state. This study investigates the feasibility for parameter scheduling in a number of ammonium feedback stra

Advanced PID Control

Advanced PID Control builds on the basics learned in PID Controllers but augments it through use of advanced control techniques, including auto-tuning, gain scheduling and adaptation.

Research on gain scheduling