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
In the era of health democracy, where a patient’s right to be informed is not only widely advocated but also guaranteed by law, what is the real situation regarding patient information? Do patients receive the information that they request with regard to their diagnosis, prognosis or treatments? And what information do patients themselves give to their doctors? Drawing on observational research in hospitals and covering the exchanges between doctors and patients on the subject of cancer treatment and that of other pathologies, this book reveals that the practice of telling lies is widespread amongst parties on both sides of the medical relationship. With attention to the manner in which information of various types is withheld and the truth concealed on either side of the doctor-patient relationship, the author explores the boundaries between what is said and what is left unsaid, and between those who are given information and those who are lied to. Considering the misunderstandings that occur in the course of medical exchanges and the differences between the lies told by doctors and patients, An Anthropology of Lying: Information in the Doctor-Patient Relationship analyses the role of mendacity in the exercise of, and resistance to power. A fascinating study of the mechanisms at work and social conditions surrounding the accomplishment of lying in medical settings, this book casts fresh light on a subject that has so far been overlooked. As such, it will appeal not only to sociologists and anthropologists of health and medicine, but also to medical professionals.
Lithium batteries were introduced relatively recently in comparison to lead- or nickel-based batteries, which have been around for over 100 years. Nevertheless, in the space of 20 years, they have acquired a considerable market share – particularly for the supply of mobile devices. We are still a long way from exhausting the possibilities that they offer. Numerous projects will undoubtedly further improve their performances in the years to come. For large-scale storage systems, other types of batteries are also worthy of consideration: hot batteries and redox flow systems, for example. This book begins by showing the diversity of applications for secondary batteries and the main characteristics required of them in terms of storage. After a chapter presenting the definitions and measuring methods used in the world of electrochemical storage, and another that gives examples of the applications of batteries, the remainder of this book is given over to describing the batteries developed recently (end of the 20th Century) which are now being commercialized, as well as those with a bright future. The authors also touch upon the increasingly rapid evolution of the technologies, particularly regarding lithium batteries, for which the avenues of research are extremely varied. Contents Part 1. Storage Requirements Characteristics of Secondary Batteries Examples of Use 1. Breakdown of Storage Requirements. 2. Definitions and Measuring Methods. 3. Practical Examples Using Electrochemical Storage. Part 2. Lithium Batteries 4. Introduction to Lithium Batteries. 5. The Basic Elements in Lithium-ion Batteries: Electrodes, Electrolytes and Collectors. 6. Usual Lithium-ion Batteries. 7. Present and Future Developments Regarding Lithium-ion Batteries. 8. Lithium-Metal Polymer Batteries. 9. Lithium-Sulfur Batteries. 10. Lithium-Air Batteries. 11. Lithium Resources. Part 3. Other Types of Batteries 12. Other Types of Batteries. About the Authors Christian Glaize is Professor at the University of Montpellier, France. He is also Researcher in the Materials and Energy Group (GEM) of the Institute for Electronics (IES), France. Sylvie Geniès is a project manager at the French Alternative Energies and Atomic Energy Commission (Commissariat à l’Energie Atomique et aux Energies Alternatives) in Grenoble, France.
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
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