Developpement Dune Procedure De Compartimentation Dune Eau Residuaire Urbaine Et Application A La Modelisation Dynamique De Procedes A Boues Activees
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| Author | : Etienne Paul |
| Publisher | : John Wiley & Sons |
| Total Pages | : 431 |
| Release | : 2012-07-30 |
| Genre | : Science |
| ISBN | : 1118309685 |
A comprehensive guide to sludge management, reuse, and disposal When wastewater is treated, reducing organic material to carbon dioxide, water, and bacterial cells the cells are disposed of, producing a semisolid and nutrient-rich byproduct called sludge. The expansion in global population and industrial activity has turned the production of excess sludge into an international environmental challenge, with the ultimate disposal of excess sludge now one of the most expensive problems faced by wastewater facilities. Written by two leading environmental engineers, Biological Sludge Minimization and Biomaterials/Bioenergy Recovery Technologies offers a comprehensive look at cutting-edge techniques for reducing sludge production, converting sludge into a value-added material, recovering useful resources from sludge, and sludge incineration. Reflecting the impact of new stringent environmental legislation, this book offers a frank appraisal of how sludge can be realistically managed, covering key concerns and the latest tools: Fundamentals of biological processes for wastewater treatment, wastewater microbiology, and microbial metabolism, essential to understanding how sludge is produced Prediction of primary sludge and waste-activated sludge production, among the chief design and operational challenges of a wastewater treatment plant Technologies for sludge reduction, with a focus on reducing microbial growth yield as well as enhancing sludge disintegration The use of anerobic digestion of sewage sludge for biogas recovery, in terms of process fundamentals, design, and operation The use of the microbial fuel cell (MFC) system for the sustainable treatment of organic wastes and electrical energy recovery
| Author | : Henri Spanjers |
| Publisher | : IWA Publishing |
| Total Pages | : 202 |
| Release | : 1998-01-01 |
| Genre | : Science |
| ISBN | : 1900222043 |
Ebook only (available soon) The report describes the principles of measurement of respiration rate, the transformation of measurement data into other types of information, and the application of the obtained information in process control strategies. Some fundamental concepts on biological respiration and process control are provided to assist the reader with understanding the principles. A structured overview comprises some eighty control strategies in which respirometry plays a role. To enable the reader to consult the information sources, an extensive literature list of over 500 references in included and classified into six themes. Contents Fundamentals of Respiration Measuring Principles Measured and Deduced Variables Elementary Control Concepts Respirometry in Control of the Activated Sludge Process Summary and Perspectives. Scientific and Technical Report No.7 Also Available Respirometry in Control of the Activated Sludge Process: Benchmarking Control Strategies
| Author | : W. O. K. Grabow |
| Publisher | : IWA Publishing |
| Total Pages | : 382 |
| Release | : 2001 |
| Genre | : Science |
| ISBN | : 9781900222709 |
Selected Proceedings of the 1st IWA World Water Congress, held in Paris, France, 3-7 July 2000. The World Water Congress held in Paris in July 2000 was the first under the banner of the International Water Association, formed by the merger of the International Association on Water Quality and the International Water Services Association. The success of the merger was reflected in the unprecedented degree of interest and participation in the Congress, with nearly two-and-a-half thousand delegates attending for 450 oral presentations, 750 poster presentations and 4 workshops and seminars. From the large number of oral presentations, 43 dealing with aspects of wastewater treatment have been selected for this issue. Topics include adsorption, volatile organic emissions, membrane technology, particle separation, large wastewater treatment plants (design, operation and costs), instrumentation and control, agro-industries waste management. With authors who rank among the world s leading experts in these fields, tackling some of the most prominent contemporary problems, these proceedings are an essential compilation of the latest advances relating to the management of impacts on the water environment.
| Author | : Gustaf Olsson |
| Publisher | : IWA Publishing (International Water Assoc) |
| Total Pages | : 532 |
| Release | : 2002-05-31 |
| Genre | : Science |
| ISBN | : |
Instrumentation, control and automation (ICA) in the water industry has come a long way in the three decades since the first IAWPR workshops on the subject and is now a well established and recognised area of technology. This has resulted from a combination of factors: improvements in the capabilities of hardware and software, developments in theoretical understanding and practical applications, and a wider awareness of the power of ICA. These developments continue at pace, and so the heavyweight programme of the 8th conference in this series (the first under the banner of the International Water Association) attracted a large attendance. A central goal of the conference was to link practical operating experience with new research results on sensor technology, instrumentation, control, and automation systems. This is important in both water and wastewater treatment and transport systems, which incorporate increasingly complex measurement systems, information technology, control systems and human interaction. From the extensive programme 60 papers were selected by a thorough review procedure for these selected proceedings. Topics covers include: process control; sensors for wastewater characterization; benchmarking for control strategy development and testing; sensors for monitoring and detection; process monitoring, detection and early warning systems; process and plant-wide control approaches; modeling and simulation; network control and integrated approaches; applied control; and operational support and experiences. They provide a genuinely state-of-the-art compilation in a field of central importance to water and wastewater.
| Author | : Linda Strande |
| Publisher | : IWA Publishing |
| Total Pages | : 428 |
| Release | : 2014-08-15 |
| Genre | : Technology & Engineering |
| ISBN | : 1780404735 |
It is estimated that literally billions of residents in urban and peri-urban areas of Africa, Asia, and Latin America are served by onsite sanitation systems (e.g. various types of latrines and septic tanks). Until recently, the management of faecal sludge from these onsite systems has been grossly neglected, partially as a result of them being considered temporary solutions until sewer-based systems could be implemented. However, the perception of onsite or decentralized sanitation technologies for urban areas is gradually changing, and is increasingly being considered as long-term, sustainable options in urban areas, especially in low- and middle-income countries that lack sewer infrastructures. This is the first book dedicated to faecal sludge management. It compiles the current state of knowledge of the rapidly evolving field of faecal sludge management, and presents an integrated approach that includes technology, management, and planning based on Sandecs 20 years of experience in the field. Faecal Sludge Management: Systems Approach for Implementation and Operation addresses the organization of the entire faecal sludge management service chain, from the collection and transport of sludge, and the current state of knowledge of treatment options, to the final end use or disposal of treated sludge. The book also presents important factors to consider when evaluating and upscaling new treatment technology options. The book is designed for undergraduate and graduate students, and engineers and practitioners in the field who have some basic knowledge of environmental and/or wastewater engineering.
| Author | : Mogens Henze |
| Publisher | : Springer |
| Total Pages | : 384 |
| Release | : 2014-03-12 |
| Genre | : Technology & Engineering |
| ISBN | : 9783662226063 |
| Author | : Jacek Makinia |
| Publisher | : IWA Publishing |
| Total Pages | : 682 |
| Release | : 2020-03-02 |
| Genre | : Science |
| ISBN | : 1780409516 |
Mathematical Modelling and Computer Simulation of Activated Sludge Systems – Second Edition provides, from the process engineering perspective, a comprehensive and up-to-date overview regarding various aspects of the mechanistic (“white box”) modelling and simulation of advanced activated sludge systems performing biological nutrient removal. In the new edition of the book, a special focus is given to nitrogen removal and the latest developments in modelling the innovative nitrogen removal processes. Furthermore, a new section on micropollutant removal has been added. The focus of modelling has been shifting in the last years to models that can describe the performance of a whole plant (plant-wide modelling). The expanded part of this new edition introduces models describing the most important processes interrelated with the mainstream activated sludge systems as well as models describing the energy balance, operating costs and environmental impact. The complex process evaluation, including minimization of energy consumption and carbon footprint, is in line with the present and future wastewater treatment goals. By combining a general introduction and a textbook, this book serves both intermediate and more experienced model users, both researchers and practitioners, as a comprehensive guide to modelling and simulation studies. The book can be used as a supplemental material at graduate and post-graduate levels of wastewater engineering/modelling courses.
| Author | : Henryk Melcer |
| Publisher | : IWA Publishing |
| Total Pages | : 600 |
| Release | : 2004-11-01 |
| Genre | : Science |
| ISBN | : 1843396629 |
Mathematical modeling is a useful tool for the design, analysis and control of wastewater treatment systems. The activated sludge process is one of the most common processes used in wastewater treatment, and therefore is a particularly important candidate for the application of mathematical models. In the 1980s, a task group organized by the International Association on Water Quality (IAWQ) developed a conceptual model of the activated sludge process, which has become an industry-wide standard for the development of computer-based activated sludge models. A recent version of the IAWQ model incorporates 19 components, 17 processes, and numerous rate and stoichiometric coefficients. It is difficult and costly to quantify all of the necessary coefficients for any given application of the model; consequently, it is important to identify the most critical wastewater and biomass components and the relevant coefficients to be quantified for the most common uses of the model. It is also important to provide guidance to potential model users on the use of default and/or estimated values for the remaining parameters.
| Author | : Leiv Rieger |
| Publisher | : IWA Publishing |
| Total Pages | : 287 |
| Release | : 2012-09-14 |
| Genre | : Science |
| ISBN | : 1843391740 |
Mathematical modelling of activated sludge systems is used widely for plant design, optimisation, training, controller design and research. The quality of simulation studies varies depending on the project objectives, finances and expertise available. Consideration has to be given to the model accuracy and the amount of time required carrying out a simulation study to produce the desired accuracy. Inconsistent approaches and insufficient documentation make quality assessment and comparison of simulation results difficult or almost impossible. A general framework for the application of activated sludge models is needed in order to overcome these obstacles. The genesis of the Good Modelling Practice (GMP) Task Group lies in a workshop held at the 4th IWA World Water Congress in Marrakech, Morocco where members of research groups active in wastewater treatment modelling came together to develop plans to synthesize the best practices of modellers from all over the world. The most cited protocols were included in the work, amongst others from: HSG (Hochschulgruppe), STOWA, BIOMATH and WERF. The goal of the group is to set up an internationally accepted framework to deal with the ASM type models in practice. This framework shall make modelling more straightforward and systematic to use especially for practitioners and consultants. Additionally, it shall help to define quality levels for simulation results, a procedure to assess this quality and to assist in the proper use of the models. The framework will describe a methodology for goal-oriented application of activated sludge models demonstrated by means of a concise guideline about the procedure of a simulation study and some illustrative case studies. The case studies shall give examples for the required data quality and quantity and the effort for calibration/validation with respect to a defined goal. The final report will include an extended appendix with additional information and details of methodologies. Additional features in Guidelines for Using Activated Sludge Models include a chapter on modelling industrial wastewater, an overview on the history, current practice and future of activated sludge modelling and several explanatory case studies. It can be used as an introductory book to learn about Good Modelling Practice (GMP) in activated sludge modelling and will be of special interest for process engineers who have no prior knowledge of modelling or for lecturers who need a textbook for their students. The STR can also be used as a modelling reference book and includes an extended appendix with additional information and details of methodologies. Scientific and Technical Report No. 22
| Author | : Elena Burlakova |
| Publisher | : CRC Press |
| Total Pages | : 574 |
| Release | : 2005-10-28 |
| Genre | : Science |
| ISBN | : 9047416414 |
This volume discusses questions of free-radical biology and new, modern directions in molecular cytobiology; proteomics and genomics. The book presents articles and reviews on bioantioxidants, synthesis of new compounds, mechanisms of their action and areas of application. Studies on free radical states using ESR technique, biochemistry of regulato
