Download or read book Electrochemical Characteristics of Some Cathodes for Medium Temperature Solid Oxide Fuel Cells Synthesized by Solid State Reaction Technique written by Priit Möller and published by . This book was released on 2008 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mod lisation de cathodes de piles combustible oxyde lectrolyte solide SOFC written by Jonathan Deseure and published by . This book was released on 2003 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dans ce travail, nous avons modélisé le comportement en régime permanent et des impédances électrochimiques des cathodes de piles à combustible fonctionnant à haute température et mettant en œuvre des oxydes céramiques (SOFC). Deux approches sont proposées, la première cherche à mettre en évidence les mécanismes réactionnels intervenant selon la nature du matériau et la seconde de déterminer une morphologie optimale. L'étude sur électrode de type couche mince, a démontré qu'une analyse électrique fine permettait de discriminer les cinétiques pouvant limiter la réduction de l'oxygène. Enfin, sur électrode composite, nous avons montré le rôle des paramètres géométriques tel que : la taille de grains, la porosité et la composition. Ainsi, pour augmenter les performances d'une électrode composite, il est nécessaire de diminuer la taille des grains du composite et d'en contrôler la porosité. Par ailleurs, nous avons démontré qu'il est judicieux d'utiliser une électrode à gradient de composition. Enfin, dans la dernière partie du manuscrit, nous avons estimé expérimentalement une configuration de cellule électrochimique devant permettre une caractérisation fiable.
Download or read book Hydrogen Technology written by Aline Léon and published by Springer Science & Business Media. This book was released on 2008-07-18 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aline Leon ́ In the last years, public attention was increasingly shifted by the media and world governmentsto the conceptsof saving energy,reducingpollution,protectingthe - vironment, and developing long-term energy supply solutions. In parallel, research funding relating to alternative fuels and energy carriers is increasing on both - tional and international levels. Why has future energy supply become such a matter of concern? The reasons are the problems created by the world’s current energy supply s- tem which is mainly based on fossil fuels. In fact, the energystored in hydrocarb- based solid, liquid, and gaseous fuels was, is, and will be widely consumed for internal combustion engine-based transportation, for electricity and heat generation in residential and industrial sectors, and for the production of fertilizers in agric- ture, as it is convenient, abundant, and cheap. However, such a widespread use of fossil fuels by a constantly growing world population (from 2. 3 billion in 1939 to 6. 5 billion in 2006) gives rise to the two problems of oil supply and environmental degradation. The problemrelated to oil supply is caused by the fact that fossil fuels are not - newable primary energy sources: This means that since the rst barrel of petroleum has been pumped out from the ground, we have been exhausting a heritage given by nature.
Download or read book Energy Technology 2018 written by Ziqi Sun and published by Springer. This book was released on 2018-01-30 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection focuses on energy efficient technologies including innovative ore beneficiation, smelting technologies, recycling and waste heat recovery. The volume also covers various technological aspects of sustainable energy ecosystems, processes that improve energy efficiency, reduce thermal emissions, and reduce carbon dioxide and other greenhouse emissions. Papers addressing renewable energy resources for metals and materials production, waste heat recovery and other industrial energy efficient technologies, new concepts or devices for energy generation and conversion, energy efficiency improvement in process engineering, sustainability and life cycle assessment of energy systems, as well as the thermodynamics and modeling for sustainable metallurgical processes are included. This volume also includes topics on CO2 sequestration and reduction in greenhouse gas emissions from process engineering, sustainable technologies in extractive metallurgy, as well as the materials processing and manufacturing industries with reduced energy consumption and CO2 emission. Contributions from all areas of non-nuclear and non-traditional energy sources, such as solar, wind, and biomass are also included in this volume.Papers from the following symposia are presented in the book:Energy Technologies and CO2 ManagementAdvanced Materials for Energy Conversion and Storage Deriving Value from Challenging Waste Streams: Recycling and Sustainability Joint SessionSolar Cell SiliconStored Renewable Energy in Coal
Download or read book Ion Properties written by Yitzhak Marcus and published by CRC Press. This book was released on 1997-07-29 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Considering the properties of inorganic and organic ions pertaining directly, as well as indirectly, to their behaviour in solutions, this work aims to enable the specialist and non-specialist alike to comprehend ion behaviour in ongoing and developing studies and applications. The companion disk is for use with Microsoft Access 2.0.
Download or read book Biosensing for the 21st Century written by Fred Lisdat and published by Springer. This book was released on 2007-11-20 with total page 515 pages. Available in PDF, EPUB and Kindle. Book excerpt: With contributions by numerous experts
Download or read book Decentralised Sanitation and Reuse written by Piet Lens and published by IWA Publishing. This book was released on 2001-03-01 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adopting a multi-disciplinary approach, Decentralised Sanitation and Reuse places public sanitation in a global context and provides a definitive discussion of current state-of-the-art sanitation technologies. It shows how these technologies can be implemented to integrate domestic waste and wastewater treatment in order to maximize resource recycling in domestic practice. Decentralised Sanitation and Reuse presents technical solutions for on-site collection and transport of concentrated waste streams, and focuses on the compromise between reliability and minimal water wastage. A whole range of available sustainable technologies, both low and high-tech, to treat concentrated (black water) and diluted (grey water) streams are addressed in detail from the fundamental scientific and engineering points of view. Sociological, economic and, particularly, environmental and public health aspects are essential issues within this book. The necessity of new infrastructure implementation and the resulting challenges for a good number of economic branches are illustrated with examples from architecture and town planning. Decentralised Sanitation and Reuse will be an invaluable resource for a wide academic and professional readership active in the fields of environmental protection and public sanitation. Contents The DESAR concept for environmental protection Waste and wastewater characteristics and its collection on the site Technological aspects of DESAR Environmental and public health aspects of DESAR Sociological and economic aspects of DESAR Architectural and urbanistic aspects of DESAR
Download or read book Biobased Industrial Products written by National Research Council and published by National Academies Press. This book was released on 2000-02-16 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: Petroleum-based industrial products have gradually replaced products derived from biological materials. However, biologically based products are making a comebackâ€"because of a threefold increase in farm productivity and new technologies. Biobased Industrial Products envisions a biobased industrial future, where starch will be used to make biopolymers and vegetable oils will become a routine component in lubricants and detergents. Biobased Industrial Products overviews the U.S. land resources available for agricultural production, summarizes plant materials currently produced, and describes prospects for increasing varieties and yields. The committee discusses the concept of the biorefinery and outlines proven and potential thermal, mechanical, and chemical technologies for conversion of natural resources to industrial applications. The committee also illustrates the developmental dynamics of biobased products through existing examples, as well as products still on the drawing board, and it identifies priorities for research and development.
Download or read book Phosphorus in Environmental Technology written by E. Valsami-Jones and published by IWA Publishing. This book was released on 2004-05-31 with total page 681 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phosphorus in Environmental Technology: Principles and Applications, provides a definitive and detailed presentation of state-of-the-art knowledge on the environmental behaviour of phosphorus and its applications to the treatment of waters and soils. Special attention is given to phosphorus removal for recovery technologies, a concept that has emerged over the past 5-6 years. The book features an all-encompassing approach: the fundamental science of phosphorus (chemistry, geochemistry, mineralogy, biology), key aspects of its environmental behaviour and mobility, industrial applications (treatment, removal, recovery) and the principles behind such applications, novel biotechnologies and, importantly, it also addresses socio-economic issues which often influence implementation and the ultimate success of any new technology. A detailed subject index helps the reader to find their way through the different scientific and technological aspects covered, making it an invaluable reference work for students, professionals and consultants dealing with phosphorus-related environmental technologies. State-of-the-art knowledge on the behaviour of phosphorus and its applications to environmental science and technology. Covers all aspects of phosphorus in the environment, engineered and biological systems; an interdisciplinary text.
Download or read book Biofilms in Medicine Industry and Environmental Biotechnology written by Piet Lens and published by IWA Publishing. This book was released on 2003-04-30 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biofilms are of great practical importance for beneficial technologies such as water and wastewater treatment and bioremediation of groundwater and soil. In other settings biofilms cause severe problems, for example in 65% of bacterial infections currently treated by clinicians (particularly those associated with prosthetics and implants), accelerated corrosion in industrial systems, oil souring and biofouling. Until recently, the structure and function of biofilms could only be inferred from gross measures of biomass and metabolic activity. This limitation meant that investigators involved in biofilm research and application had only a crude understanding of the microbial ecology, physical structure and chemical characteristics of biofilms. Consequently, opportunities for the exploitation and control of biofilms were very limited. The past decade has witnessed the development of several new techniques to elucidate the structure and function of biofilms. Examples include: the use of molecular probes that identify different microbes in complex communities as well as their metabolic functions; the use of microsensors that show concentration gradients of key nutrients and chemicals; the use of confocal laser scanning microscopy to describe the physical structure of biofilms and the development of a new generation of mathematical models that allow for the prediction of biofilm structure and function. However, much progress remains to be made in efforts to understand, control and exploit biofilms. This timely book will introduce its readers to the structure and function of biofilms at a fundamental level as determined during the past decade of research, including: Extracellular polymers as the biofilm matrix; Biofilm phenotype (differential gene expression, interspecies signalling); Biofilm ecology; Biofilm monitoring; Resistance of biofilms to antimicrobial agents and Biofilm abatement. Biofilms in Medicine, Industry and Environmental Technology offers a holistic and multi-disciplinary description of the topic, including biofilm formation and composition, but also biofilm monitoring, disinfection and control. All these aspects are presented from three points of views: medical, industrial and environmental biotechnological in a compact, easy to read format.
Download or read book Pond Treatment Technology written by Andrew Shilton and published by IWA Publishing. This book was released on 2006-03-01 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pond treatment technology is used in tens of thousands of applications serving many millions of people across the globe - why? Simply because it is efficient and effective. While pond treatment technology offers relative simplicity in its application, it incorporates a host of complex and diverse mechanisms that work to treat and cleanse polluted waters before their return to our environment. This book offers a comprehensive review of the pond technology field including the newest ideas and latest findings. Topics covered include: The physical, chemical and biological characteristics of the pond environment; A detailed review of pond treatment mechanisms and performance; Comprehensive guidance on pond design, operation and upgrade options; A range of chapters summarising new and emerging pond technologies; The integration of ponds with wetlands and aquaculture systems and their use as storage reservoirs; Special applications of pond technology in cold climates, for agricultural wastes and for treatment of stormwater. The objective of this book is to get this wealth of knowledge "out there" to the users to ensure the continuous improvement and ongoing success of this crucial technology.
Download or read book Soil and Sediment Remediation written by Piet Lens and published by IWA Publishing. This book was released on 2005-09-30 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil and Sediment Remediation discusses in detail a whole set of remediative technologies currently available to minimise their impact. Technologies for the treatment of soils and sediments in-situ (landfarming, bioscreens, bioventing, nutrient injection, phytoremediation) and ex-situ (landfarming, bio-heap treatment, soil suspension reactor) will be discussed. The microbiological, process technological and socio-economical aspects of these technologies will be addressed. Special attention will be given to novel biotechnological processes that utilise sulfur cycle conversions, e.g. sulfur and heavy metal removal from soils. Also the potential of phytoremediation will be highlighted. In addition, treatment schemes for the clean-up of polluted megasites, e.g. harbours and Manufactured Gaswork Plants (MGP), will be elaborated. The aim of Soil and Sediment Remediation is to introduce the reader in: the biogeochemical characteristics of soil and sediments- new techniques to study soil/sediment processes (molecular probes, microelectrodes, NMR) clean up technologies for soils polluted with organic (PAH, NAPL, solvents) or inorganic (heavy metals) pollutants- preventative and remediative strategies and technologies available in environmental engineering novel process applications and bioreactor designs for bioremediation the impact of soil pollution on society and its economic importance.
Download or read book Greenhouse Gas Control Technologies written by B. Eliasson and published by Elsevier. This book was released on 1999-05-20 with total page 1225 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings contain 270 papers outlining ideas and contributions to the new scientific, technical and political discipline of Greenhouse Gas (GHG) Control. The contributions were presented at the 4th International Conference on Greenhouse Gas Control Technologies (GHGT-4). It was the largest gathering of experts active in this new and fast-developing field.GHGT-4 was different from its predecessors in that it included all greenhouse gases, not only CO2, and all issues which could contribute to the mitigation of the greenhouse problem - technical, economic and political. The main focus was on practical solutions and real demonstrations of mitigation technology being planned and implemented today. It also addressed ways to increase the efficiency of power production and utilisation, and looked at proposals to encourage the development of renewable energy sources.During the Opening Session, 10 keynote addresses were heard from prominent personalities in government, industry and academia. To tackle this very inter-disciplinary problem and to achieve acceptable solutions, it is essential for industry and government to initiate intense dialogue and cooperation. Conferences like this can provide the opportunity for a meeting of minds between engineers and politicians in the face of global challenge. The primary attributes of this global challenge are manifold: the problem is global and international; it is inter-disciplinary, both in substance and approach; it covers technical, political and economic issues and involves government, science, industry and academia; it is complex and non-linear; and it will take the efforts of all parties involved to solve the problem.These proceedings contain ideas for starting demonstration projects and for making better use of the power and flexibility of market measures. They also show it is a problem we can influence and that there is a wealth of ideas. The challenge now is to find the right partners to put these ideas into action.
Download or read book Environmental Technologies to Treat Sulfur Pollution written by Piet Lens and published by IWA Publishing. This book was released on 2020-09-15 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition is fully updated with new material to create a comprehensive and accessible reference book: New chapters on sulfur removal via bioelectrochemical systems, use of sulfate radicals in advanced oxidation processes and sulfur nanoparticle biosynthesis. New sections on: sulfur cycle chemistry and microbiology; sulfate removal vs. recovery of resources from sulfate-rich wastewaters; microaeration for biogas desulfurisation; biological treatment of gypsum and sulfur-rich solid waste; up-to-date process control for treatment of sulfur-rich waste streams. New case studies with emphasis on practices for sewer and steel corrosion control, odour mitigation, autotrophic denitrification and bioremediation of acid mine polluted sites in both developed and developing countries have been included. Novel concepts of environmental technologies to treat sulfur pollution of wastewater, off-gases, solid waste, soils and sediments are presented. Up-to-date research findings and innovative technologies for recovering resources, i.e. metals, fertiliser, biofuels and irrigation water, from sulfur polluted waste are provided. This book may serve both as an advanced textbook for undergraduate and graduate students majoring in environmental sciences, technology or engineering as well as a handbook for tertiary educators, researchers, professionals and policymakers who conduct research and practices in the sulfur related fields. It is essential reading for consulting companies when dealing with sulfur related environmental (bio)technologies.
Download or read book Towards an Agenda for Agricultural Research in Europe written by Abraham Boekestein and published by Purdue University Press. This book was released on 2000 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transitions in a Globalising World written by Pim Martens and published by Routledge. This book was released on 2021-05-31 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Earth System may be the most complex entity that ever emerged in our galaxy and the contemporary process of 'globalisation' may be the most intricate dynamics that will ever pervade that entity: it is the interactive co-evolution of millions of technological, cultural, economic, social and environmental trends at all conceivable spatiotemporal scales that brings about the present fundamental transformation of humanity’s way of life. In this text the authors make the heroic effort to tame the complexity of modern planetary development by the intellectual concept of 'transition'. In this work, four major issues are discussed that are of global importance: developments related to two of our key natural resources; water and biodiversity; the health of human populations; and the developments related to global tourism.
Download or read book Sustainable Technology Development written by Paul Weaver and published by Routledge. This book was released on 2017-09-08 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the time it takes to read this sentence, about fifteen people will be added to the world's population. Read the sentence again, and there will be thirty. Tomorrow, each of these people will be demanding greater prosperity. Production and consumption are increasing fast but will have to grow even faster in the future to keep up with population growth and a world increasingly divided by inequality. How should we react to these trends? Certainly, many use growth figures to forecast disaster. But there is an alternative vision: one of a sustainable future, in which growth is seen not as a threat, but as the driving force behind innovation. This is the scenario worked out in the Netherlands by Sustainable Technology Development (STD), a five-year programme of research and "learning-by-doing" based on setting up new innovation networks and working with new methods to search for sustainable technological solutions. In order to make sustainability tangible, STD made a leap in time. What human needs will have to be satisfied fifty years from now? Taking a sustainable future vision as a starting point, STD demonstrated what steps we should take today for new technologies and systems to be in place in time. These results are now available for the first time in a comprehensive, specifically written English-language book, together with a description of the unique working method of STD and the results and key lessons from a set of the programme's illustrative case studies. This book serves as a manual for industry, governments and social leaders wanting to prepare themselves for a sustainable future. Sustainable Technology Development sets out the programme's underpinning philosophy and describes its approach, methods and findings. Delivering sustainability means finding ways to meet human needs using a fraction of the natural resources we use today. The world's richer nations would be wise to target at least ten-fold improvements by 2050 in the productivity with which conventional natural resources and environmental services are used. And they need to bring new, sustainable resources on-stream to augment the resource base and replace the use of unsustainable alternatives. Sustainable Technology Development marks a significant contribution to our understanding of innovation processes and how these might be influenced in favour of sustainable technology development. In principle, technology could play a pivotal role in sustainable development. Whether it does or not depends on whether innovators can be encouraged to make this an explicit goal, adopt long-term time-horizons and search for renewable technologies. Given the long lead-times involved, there is no time to waste in beginning the search. The STD programme has begun to make inroads into one of the most urgent of all needs concerning sustainable development: that for innovation in the innovation process itself.
