Osmosis: The Molecular Theory


Book Description

Finally: After 250 years, a solution to this intriguing and important phenomena of osmosis has been found. Many other solutions have been proposed, no others fully explain the process and the many applications. This book introduces a new understanding of osmosis, solids, liquids, and vapor pressure and more.... For those that already understand osmosis, we suggest that you begin with the last chapter. The first chapters may sound like heresy. For others, beginning with the first chapter will take you through the many levels of understanding that we followed to develop the Molecular Theory of Osmosis




Osmosis Engineering


Book Description

Osmosis Engineering provides a comprehensive overview of the state-of-the-art surrounding osmosis-based research and industrial applications. The book covers the underpinning theories, technology developments and commercial applications. Sections discuss innovative and advanced membranes and modules for osmosis separation processes (e.g., reverse osmosis, forward osmosis, pressure retarded osmosis, osmotic membrane distillation), different application of these osmosis separation processes for energy and water separation, such as the treatment of radioactive waste, oily wastewater and heavy metal removal, draw solutions, pretreatment technologies, fouling effects, the use of renewable energy driven osmotic processes, computational, environmental and economic studies, and more. - Covers state-of-the-art osmotic engineering technologies and applications - Presents multidisciplinary topics in engineered osmosis, including both fundamental and applied EO concepts - Includes major challenges such as fouling mitigation, membrane development, pre-treatment and energy usage




Forward Osmosis


Book Description




Osmotic Investigations


Book Description




Reverse Osmosis Systems


Book Description

Reverse Osmosis Systems: Design, Optimization and Troubleshooting Guide describes in depth knowledge of designing and operating reverse osmosis (RO) systems for water desalination, and covers issues which will effect the probability for the long-standing success of the application. It also provides guidelines that will increase the performance of seawater RO desalination systems by avoiding errors in the design and operation and suggest corrective measures and troubleshooting of the problems encountered during RO operation. This book also provides guidelines for the best RO design and operational performance. In the introductory section, the book covers the history of RO along with the fundamentals, principles, transport models, and equations. Following sections cover the practical areas such as pretreatment processes, design parameters, design software programs (WAVE, IMSDesign, TORAYDS2, Lewaplus, ROAM Ver. 2.0, Winflows etc.), RO performance monitoring, normalization software programs (RODataXL and TorayTrak), troubleshooting as well as system engineering. Simplified methods to use the design software programs are also properly illustrated and the screenshots of the results, methods etc. are also given here along with a video tutorial.The final section of the book includes the frequently asked questions along with their answers. Moreover, various case studies carried out and recent developments related to RO system performance, membrane fouling, scaling, and degradation studies have been analyzed. The book also has several work out examples, which are detailed in a careful as well as simple manner that help the reader to understand and follow it properly. The information presented in some of the case studies are obtained from existing commercial RO desalination plants. These topics enable the book to become a perfect tool for engineers and plant operators/technicians, who are responsible for RO system design, operation, maintenance, and troubleshooting. With the right system design, proper operation, and maintenance program, the RO system can offer high purity water for several years. - Provides guidelines for the optimum design and operational performance of reverse osmosis desalination plants - Presents step-by-step procedure to design reverse osmosis system with the latest design software programs along with a video tutorial - Analyzes some of the issues faced during the design and operation of the reverse osmosis desalination systems, suggest corrective measures and its troubleshooting - Discusses reverse osmosis desalination pretreatment processes, design parameters, system performance monitoring, and normalization software programs - Examines recent developments related to system performance, membrane fouling, and scaling studies - Presents case studies related to commercial reverse osmosis desalination plants - Perfect training guide for engineers and plant operators, who are responsible for reverse osmosis system design, operation and maintainance




Pressure Retarded Osmosis


Book Description

Pressure Retarded Osmosis: Renewable Energy Generation and Recovery offers the first comprehensive resource on this method of generating renewable energy. Dr. Khaled Touati and the team of editors combine their expertise with contributions from other leaders in the field to create this well-rounded resource, which discusses and analyses this novel method of creating a controllable renewable energy. The promises of the PRO technique are first clearly presented and explained, and the authors then provide a comprehensive analysis of the issues that remain such as Concentration Polarization, Membrane Deformation, and Reverse Salt Diffusion. Possible solutions to these issues which often restrict industrial implementation are then discussed to mitigate these detrimental effects, and there is also an emphasis on the recovery of energy from desalination processes using PRO, which is able to reduce energy consumption and make it more economically and environmentally efficient.




Why Evolution is True


Book Description

For all the discussion in the media about creationism and 'Intelligent Design', virtually nothing has been said about the evidence in question - the evidence for evolution by natural selection. Yet, as this succinct and important book shows, that evidence is vast, varied, and magnificent, and drawn from many disparate fields of science. The very latest research is uncovering a stream of evidence revealing evolution in action - from the actual observation of a species splitting into two, to new fossil discoveries, to the deciphering of the evidence stored in our genome. Why Evolution is True weaves together the many threads of modern work in genetics, palaeontology, geology, molecular biology, anatomy, and development to demonstrate the 'indelible stamp' of the processes first proposed by Darwin. It is a crisp, lucid, and accessible statement that will leave no one with an open mind in any doubt about the truth of evolution.




Reverse Osmosis


Book Description

Reverse Osmosis starts with an overview of the historic development of the RO membrane, the RO process, and its effect on other membrane separation processes. Other chapters cover the development of nanocomposites of TFC membranes and modern membrane characterization techniques, such as TEM, AFM and PALS, the RO membrane transport model, and RO membrane fouling. The book also describes, in detail, experimental methods for setting up RO experiments, RO membrane modules, RO membrane systems, and desalination and water treatment by RO. Applications in food, pharmaceutical, chemical, biochemical, petroleum and petrochemical industries are also summarized. Other sections cover the development of RO membranes with high thermal and chemical stability, attempts to develop polymeric or inorganic membranes, and hybrid processes where RO is combined with forward osmosis (FO) or membrane distillation (MD). - Written by renowned experts in the field who have complementary expertise - Provides an in-depth discussion of reverse osmosis transport based on nano-level membrane structure - Comprehensively reviews recent progresses in novel reverse osmosis membrane development




Osmotically Driven Membrane Processes


Book Description

Osmotically driven membrane processes (ODMPs) including forward osmosis (FO) and pressure-retarded osmosis (PRO) have attracted increasing attention in fields such as water treatment, desalination, power generation, and life science. In contrast to pressure-driven membrane processes, e.g., reverse osmosis, which typically employs applied high pressure as driving force, ODMPs take advantages of naturally generated osmotic pressure as the sole source of driving force. In light of this, ODMPs possess many advantages over pressure-driven membrane processes. The advantages include low energy consumption, ease of equipment maintenance, low capital investment, high salt rejection, and high water flux. In the past decade, over 300 academic papers on ODMPs have been published in a variety of application fields. The number of such publications is still rapidly growing. The ODMPs' approach, fabrications, recent development and applications in wastewater treatment, power generation, seawater desalination, and gas absorption are presented in this book.




Making Sense of Secondary Science


Book Description

When children begin secondary school they already have knowledge and ideas about many aspects of the natural world from their experiences both in primary classes and outside school. These ideas, right or wrong, form the basis of all they subsequently learn. Research has shown that teaching is unlikely to be effective unless it takes into account the position from which the learner starts. Making Sense of Secondary Science provides a concise and accessible summary of the research that has been done internationally in this area. The research findings are arranged in three main sections: * life and living processes * materials and their properties * physical processes. Full bibliographies in each section allow interested readers to pursue the themes further. Much of this material has hitherto been available only in limited circulation specialist journals or in unpublished research. Its publication in this convenient form will be welcomed by all researchers in science education and by practicing science teachers continuing their professional development, who want to deepen their understanding of how their children think and learn.