Michela Mulas
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Integrating data-driven models and process expertise in soft-sensor design for a wastewater treatment digital twin application Open
Digital twin models offer great potential for process improvements in wastewater treatment plants (WWTPs). Such models require a constant real-time input data feed from the physical process. Collecting these data is challenging, especially…
Predictive control of wastewater treatment plants as energy-autonomous water resource recovery facilities Open
This work proposes an automatic control solution for the operation of conventional wastewater treatment plants (WWTPs) as energy-autonomous water resource recovery facilities. We first conceptualize a classification of the quality of treat…
SLS-BRD: A System-Level Approach to Seeking Generalized Feedback Nash Equilibria Open
Publisher Copyright: © 1963-2012 IEEE.
A system level approach to generalised feedback Nash equilibrium seeking in partially-observed games Open
This work proposes an algorithm for seeking generalised feedback Nash equilibria (GFNE) in noncooperative dynamic games. The focus is on cyber-physical systems with dynamics which are linear, stochastic, potentially unstable, and partially…
Novel dissolved oxygen distribution model of a full-scale aeration tank for a municipal wastewater treatment plant in a cold climate region Open
Aeration is the most energy-intensive process in wastewater treatment plants (WWTP). Seasonal variation in hydraulic flow and load has a significant effect on WWTP's aeration energy efficiency. High flow and temperature variations are comm…
View article: Analytical methods for online data quality assessment
Analytical methods for online data quality assessment Open
This chapter provides a comprehensive overview of the main steps for algorithmic sensor signal quality assessment, which can enhance the decision-making process for water resource recovery facility (WRRF) operation and optimization. It int…
SLS-BRD: A system-level approach to seeking generalised feedback Nash equilibria Open
This work proposes a policy learning algorithm for seeking generalised feedback Nash equilibria (GFNE) in $N_P$-player noncooperative dynamic games. We consider linear-quadratic games with stochastic dynamics and design a best-response dyn…
Inference of the Paramentes of a Bioreactor via Approximate Bayesian Evidence Open
In the context of the recent water crisis, the development and improvement of technologies for efficiently treating wastewater becomes increasingly necessary. Aligned with this, the activated sludge process is widely used in biological was…
A model-based framework for controlling activated sludge plants Open
This work presents a general framework for the advanced control of a common class of activated sludge plants (ASPs). Based on a dynamic model of the process and plant sensors and actuators, we design and configure a highly customisable Out…
Evidence of waste management impacting severe diarrhea prevalence more than WASH: An exhaustive analysis with Brazilian municipal-level data Open
Adequate housing protects from diarrhea, which is a substantial health concern in low- and middle-income countries. The purpose of this study was to quantify the relationship between severe diarrhea and housing features at the municipal le…
Benchmarking Domain Adaptation for Chemical Processes on the Tennessee Eastman Process Open
In system monitoring, automatic fault diagnosis seeks to infer the systems' state based on sensor readings, e.g., through machine learning models. In this context, it is of key importance that, based on historical data, these systems are a…
Contribution of modeling and control for improving nutrient recycling via reuse Open
This paper presents a systemic viewpoint making use of modeling and control tools to promote the flexibility of a water reuse chain and dynamically adapt the quality of treated waters to plant needs, notably using output feedbacks. The pro…
Roadmap towards Smart Wastewater Treatment Facilities Open
To protect human health and natural ecosystems, wastewater treatment plants (WWTPs) have been traditionally designed to remove pollutants from wastewater. With remarkable success WWTPs have adapted to increasingly stringent discharge limit…
Online optimal estimation and control for a common class of activated sludge plants Open
Publisher Copyright: © 2022 Elsevier B.V.. All rights reserved.
Modelling solution for estimating aeration energy of wastewater treatment plants Open
Energy costs in the wastewater industry are increasing due to increasing trends in electricity rates and more stringent requirements for effluent quality. Wastewater aeration process is typically the largest energy consumer of the treatmen…
Modeling a biological reactor using sparse identification method Open
In this work a model-based controller for a fermentation bioreactor has been developed. By simulating the model of the process that acts as a virtual plant, input-output data have been generated and used to identify the system using sparse…
On the observability of activated sludge plants Open
This work has been done within the international project Control4Reuse, part of the IC4WATER programme, in the frame of the collaborative international consortium of the Water Challenges call 2017, Changing World Joint Programme Initiative…
How not to waste: appropriateness in medicine Open
The idea that the author promotes is that the term waste amounts to inappropriateness whatever the economic environment referred to. The hope is that it can act as a prod for those people who wish to make more rational and economically mor…
Development of an Extended ASM3 Model for Predicting the Nitrous Oxide Emissions in a Full-Scale Wastewater Treatment Plant Open
An Activated Sludge Model #3 (ASM3) based, pseudomechanistic model describing nitrous oxide (N2O) production was created in this study to provide more insight into the dynamics of N2O production, consumption, and emissions at a full-scale …
Ethics in the profession and organizations. Let’s talk about it Open
dei modelli d'assistenza sanitaria più appropriati all'obiettivo di tutelare la salute dei cittadini.
Full-scale implementation of an advanced control system on a biological wastewater treatment plant Open
The implementation of a multivariable control package for the real-time control and supervision of a biological wastewater treatment plant is reported and discussed. The goal is to improve the plant operation in terms of effluent quality a…