Download or read book Optimization of Urban Wastewater Systems using Model Based Design and Control written by Carlos Alberto Velez Quintero and published by CRC Press. This book was released on 2020-11-25 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: A considerable amount of scientific evidence has been collected leading to the conclusion that urban wastewater components should be designed as one integrated system, in order to protect the receiving waters cost-effectively. Moreover, there is a need to optimize the design and operation of the sewerage network and wastewater treatment plant (WwTP) considering the dynamic interactions between them and the receiving waters. This book introduces a method called Model Based Design and Control (MoDeCo) for the optimum design and control of urban wastewater components. The book presents a detailed description of the integration of modelling tools for the sewer, the wastewater treatment plants and the rivers. The complex modelling structure used for the integrated model challenge previous applications of integrated modelling approaches presented in scientific literature. The combination of modelling tools and multi-objective evolutionary algorithms demonstrated in this book represent an excellent tool for designers and managers of urban wastewater infrastructure. This book also presents two alternatives to solve the computing demand of the optimization of integrated systems in practical applications: the use of surrogate modelling tools and the use of cloud computer infrastructure for parallel computing.
Download or read book Optimization of Urban Wastewater Systems using Model Based Design and Control written by Carlos Alberto Velez Quintero and published by CRC Press. This book was released on 2020-11-25 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: A considerable amount of scientific evidence has been collected leading to the conclusion that urban wastewater components should be designed as one integrated system, in order to protect the receiving waters cost-effectively. Moreover, there is a need to optimize the design and operation of the sewerage network and wastewater treatment plant (WwTP) considering the dynamic interactions between them and the receiving waters. This book introduces a method called Model Based Design and Control (MoDeCo) for the optimum design and control of urban wastewater components. The book presents a detailed description of the integration of modelling tools for the sewer, the wastewater treatment plants and the rivers. The complex modelling structure used for the integrated model challenge previous applications of integrated modelling approaches presented in scientific literature. The combination of modelling tools and multi-objective evolutionary algorithms demonstrated in this book represent an excellent tool for designers and managers of urban wastewater infrastructure. This book also presents two alternatives to solve the computing demand of the optimization of integrated systems in practical applications: the use of surrogate modelling tools and the use of cloud computer infrastructure for parallel computing.
Download or read book Modelling Simulation and Control of Urban Wastewater Systems written by Manfred Schütze and published by Springer Science & Business Media. This book was released on 2011-06-27 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: by Professor Poul Harremoes Environmental engineering has been a discipline dominated by empirical approaches to engineering. Historically speaking, the development of urban drainage structures was very successful on the basis of pure empiricism. Just think of the impressive structures built by the Romans long before the discipline of hydraulics came into being. The fact is that the Romans did not know much about the theories of hydraulics, which were discovered as late as the mid-1800s. However, with the Renaissance came a new era. Astronomy (Galileos) and basic physics (Newton) started the scientific revolution and in the mid-1800s Navier and Stokes developed the application of Newtons laws to hydrodynamics, and later, St. Venant the first basic physics description of the motion of water in open channels. The combination of basic physical understanding of the phenomena involved in the flow of water in pipes and the experience gained by "trial and error", the engineering approach to urban drainage improved the design and performance of the engineering drainage infrastructure. However, due to the mathematical complications of the basic equations, solutions were available only to quite simple cases of practical significance until the introduction of new principles of calculation made possible by computers and their ability to crunch numbers. Now even intricate hydraulic phenomena can be simulated with a reasonable degree of confidence that the simulations are in agreement with performance in practice, if the models are adequately calibrated with sample performance data.
Download or read book Advancing Robust Multi Objective Optimisation Applied to Complex Model Based Water Related Problems written by Oscar Osvaldo Marquez Calvo and published by CRC Press. This book was released on 2020-02-07 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: The exercise of solving engineering problems that require optimisation procedures can be seriously affected by uncertain variables, resulting in potential underperforming solutions. Although this is a well-known problem, important knowledge gaps are still to be addressed. For example, concepts of robustness largely differ from study to study, robust solutions are generally provided with limited information about their uncertainty, and robust optimisation is difficult to apply as it is a computationally demanding task. The proposed research aims to address the mentioned challenges and focuses on robust optimisation of multiple objectives and multiple sources of probabilistically described uncertainty. This is done by the development of the Robust Optimisation and Probabilistic Analysis of Robustness algorithm (ROPAR), which integrates widely accepted robustness metrics into a single flexible framework. In this thesis, ROPAR is not only tested in benchmark functions, but also in engineering problems related to the water sector, in particular the design of urban drainage and water distribution systems. ROPAR allows for employing practically any existing multi-objective optimisation algorithm as its internal optimisation engine, which enables its applicability to other problems as well. Additionally, ROPAR can be straightforwardly parallelized, allowing for fast availability of results.
Download or read book MODOPT written by Wolfgang Rauch and published by . This book was released on 1999 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Model Predictive Control of Wastewater Systems written by Carlos Ocampo-Martinez and published by Springer Science & Business Media. This book was released on 2010-10-01 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: The series Advances in Industrial Control aims to report and encourage technology transfer in control engineering. The rapid development of control technology has an impact on all areas of the control discipline. New theory, new controllers, actuators, sensors, new industrial processes, computer methods, new applications, new philosophies ..., new challenges. Much of this development work resides in industrial reports, feasibility study papers and the reports of advanced collaborative projects. The series offers an opportunity for researchers to present an extended exposition of such new work in all aspects of industrial control for wider and rapid dissemination. The water and wastewater industry has undergone many changes in recent years. Of particular importance has been a renewed emphasis on improving resource management with tighter regulatory controls setting new targets on pricing, industry efficiency and loss reduction for both water and wastewater with more stringent environmental discharge conditions for wastewater. Meantime, the demand for water and wastewater services grows as the population increases and wishes for improved living conditions involving, among other items, domestic appliances that use water. Consequently, the installed infrastructure of the industry has to be continuously upgraded and extended, and employed more effectively to accommodate the new demands, both in throughput and in meeting the new regulatory conditions. Investment in fixed infrastructure is capital-intensive and slow to come on-stream. One outcome of these changes and demands is that the industry is examining the potential benefits of, and in many cases using, more advanced control systems.
Download or read book Model Based Control and Optimization of Biological Wastewater Treatment Plants written by George Simion Ostace and published by . This book was released on 2012 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Model Based Design of Water Distribution and Sewage Systems written by Hermann M. Orth and published by . This book was released on 1986-07-31 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduces the application of mathematical optimization techniques to the design of wastewater collection and management and water distribution systems. Briefly covers fundamentals of hydraulic to clarify formulas and design criteria upon which models are based. Covers operations research and engineering economics in detail. Presents examples and case studies to enable engineers to adjust models to the needs of projects. Priority is given to models that are easy to implement and manage under practical design conditions.
Download or read book Wastewater Treatment Process Modeling Second Edition MOP31 written by Water Environment Federation and published by McGraw Hill Professional. This book was released on 2013-09-12 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Most Complete, Up-to-Date Guide to Process Modeling Methods and Protocols Fully revised to cover the latest advances in the field, Wastewater Treatment Process Modeling, Second Edition, explains general modeling concepts and terminology and offers practical details on how to use process models for the design and operation of small, medium, and large water resource recovery facilities. This Water Environment Federation manual describes each step of the modeling process, including the fundamental math required, overviews of existing models and when to use them, modeling protocols, and how to interpret data. The detailed information in this authoritative volume helps to ensure that process models are developed, used, and documented correctly. Coverage includes: History of process modeling Modeling fundamentals Unit process model descriptions Process modeling tools Dedicated experiments and tools Overview of available modeling and simulation protocols Project definition Building a facility model Using models for design, optimization, and control
Download or read book Integrated Management of Urban Wastewater Systems written by Pau Prat Busquets and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Predictive Control of Urban Wastewater Systems written by Marie O'Brien and published by . This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Within recent years, technological advances and stricter regulatory requirements have seen the increased use of automation and instrumentation within the wastewater treatment industry. As a result, advanced control strategies are required, to fully exploit the potential of these complex systems in addressing water quality concerns. Model based control strategies can be appropriate within the multivariable constrained wastewater system. In particular, the inherent model based nature of this approach can be valuable in the prediction of the treatment plant effluent quality required over a considered time period, to meet water quality standards. Multivariable linear predictive control is implemented for a benchmark treatment plant model, demonstrating the constraint handling ability of the predictive control structure. The limitations of an effluent-based control strategy in the maintenance of river quality is discussed. A more global approach to wastewater control must be considered in order to compensate against disturbances within the system. Tackling this concern, the incorporation of receiving water quality objectives within the control strategy is proposed. To this end, the application of linear MPC to the control of dissolved oxygen concentrations in the receiving waters under storm conditions is demonstrated. The drawbacks involved in a linear model based approach within a nonlinear urban wastewater system are considered. Several nonlinearities are present: the bioprocesses involved are by definition nonlinear, and are affected by varying wastewater load and characteristics. These can be the result of varying stormwater effects upon the treatment plant or emergency overflows to receiving waters. This therefore motivates the development of nonlinear strategies in the control of the wastewater processes. The control of SISO nonlinear processes within the urban wastewater system, such as dissolved oxygen, is demonstrated via the use of fuzzy gain-scheduled and Wiener model based predictive control. Additionally, the use of existing nonlinear process models in the control of wastewater processes is shown in the application of state dependent model predictive control.
Download or read book Urban Drainage Modeling written by Robert W. Brashear and published by . This book was released on 2001 with total page 970 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection contains 91 papers presented at a specialty symposium on urban drainage modeling at the World Water and Environmental Resources Congress, held in Orlando, Florida, May 20-24, 2001.
Download or read book Dynamics and Control of Wastewater Systems Second Edition written by Michae Barnett and published by CRC Press. This book was released on 1998-07-20 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: FROM THE PREFACE Dynamic modeling, computer simulation, and modern control systems are valuable tools for use in both the design and operation of dynamic systems. From the "tools" point of view, this book is designed to show practicing engineers how to develop models capable of describing dynamic behavior and how to "solve" these models using computer simulation. The basic principles of process control are also presented so that the effects of different control systems on dynamic behavior can be established by computer simulation.
Download or read book Software Sensor Designs for Urban Wastewater Systems written by Farid Benazzi and published by . This book was released on 2006 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this thesis is the design of software sensors for an urban wastewater system. The dynamic behaviour of urban wastewater systems are typically described by highly non-linear deterministic models. These non-linearities are mainly caused by important variations in the influent flow rate. In addition, there is a clear lack of instrumentation and automation systems. Therefore, this thesis contains a thorough discussion of software sensors, with applications to urban wastewater treatment systems and a special emphasis on the wastewater treatment plant. Since the original activated sludge process model utilised in this work is not observable, three reduced order models, based on the activated sludge model no. 1, are proposed. A linear piece-wise observability analysis based on the Kalman rank theory is investigated on each of the reduced models, prior to non-linear observability analyses based on the Lie derivative. Furthermore, a procedure to remove the unobservable modes and to design software sensors in the presence of disturbances is proposed. The main objective of the work on state observers and parameter estimators design is to achieve on-line estimation of non-measurable concentrations and parameters based on extended Kalman filters. Initially, on-line monitoring of abnormal substrate concentrations is proposed. The designed state observer can detect substrate shock loads with a reasonable response time. Then, as on-line measurements of the biomasses concentrations are not available in real wastewater treatment plants, online monitoring of the heterotrophic biomass and autotrophic biomass concentrations is proposed. Finally, a joint state and parameter estimation application is presented, where the reduced model is augmented with an additional state variable. The main objective aims at demonstrating the parametric estimation difficulties when designing software sensors on such complex augmented non-linear model. The work on robust non-linear filtering is motivated by the fact that the extended Kalman filters presented significant drawbacks. Applications based on H∞ filtering, in which the model describing the activated sludge process is corrupted by significant process noise is presented. A comparative study between both types of software sensors is performed. The final contribution of this work is toward software sensing applications on an integrated urban wastewater system. A software sensor is implemented on the treatment plant and the sewer network effect on the estimated concentrations is demonstrated through simulation studies.
Download or read book Water Wise Cities and Sustainable Water Systems written by Xiaochang C. Wang and published by IWA Publishing. This book was released on 2020-12-15 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Building water-wise cities is a pressing need nowadays in both developed and developing countries. This is mainly due to the limitation of the available water resources and aging infrastructure to meet the needs of adapting to social and environmental changes and for urban liveability. This is the first book to provide comprehensive insights into theoretical, systematic, and engineering aspects of water-wise cities with a broad coverage of global issues. The book aims to (1) provide a theoretical framework of water-wise cities and associated sustainable water systems including key concepts and principles, (2) provide a brand-new thinking on the design and management of sustainable urban water systems of various scales towards a paradigm shift under the resource and environmental constraints, and (3) provide a technological perspective with successful case studies of technology selection, integration, and optimization on the “fit-for-purpose” basis.
Download or read book Use of Optimization Models in the Design of Wastewater Treatment Systems written by Shu-liang Liaw and published by . This book was released on 1986 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optimizing the Design of Urban Wastewater Collection Systems written by LaVere B. Merritt and published by . This book was released on 1970 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt:
