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Etude Hydrodynamique Et Biologique Dun Procede De Methanisation A Biofilm
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Book Synopsis Etude de l'hydrodynamique des procédés de traitement des eaux usées à biomasse fixée by : Frédéric Séguret
Download or read book Etude de l'hydrodynamique des procédés de traitement des eaux usées à biomasse fixée written by Frédéric Séguret and published by . This book was released on 1998 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: LE COMPORTEMENT HYDRODYNAMIQUE DES PROCEDES D'EPURATION A CULTURE FIXEE EST UN FACTEUR DETERMINANT DE LEUR EFFICACITE. CE COMPORTEMENT PEUT ETRE ETUDIE PAR LA METHODE DE LA DISTRIBUTION DES TEMPS DE SEJOUR (DTS) A L'AIDE D'UN TRACEUR, ICI LE LITHIUM. LA METHODE EST APPLIQUEE A 8 LITS BACTERIENS EN GRANDEUR REELLE. POUR INTERPRETER LES DTS OBTENUES, UN MODELE SIMULANT LES ECHANGES DE TRACEUR ENTRE LE FILM LIQUIDE ET LE FILM BACTERIEN EST INTRODUIT, CE QUI PERMET D'EXPLIQUER LA TRAINEE IMPORTANTE OBSERVEE SUR LES QUEUES DE COURBE DES DTS. CE MODELE FOURNIT PAR AJUSTEMENT AUX COURBES EXPERIMENTALES UN VOLUME MOBILE ET UN VOLUME IMMOBILE. LE PREMIER EST COMPARE AU VOLUME DRAINE PAR LE LIT, ET LE SECOND POURRAIT ETRE UN INDICATEUR DU VOLUME DE BIOMASSE DANS LE LIT, PARAMETRE-CLE POUR L'EXPLOITATION. PAR AILLEURS, IL A ETE POSSIBLE DE DETERMINER LES PARAMETRES CINETIQUES CARACTERISTIQUES DU BIOFILM, DANS LE CAS DE LITS BACTERIENS A GARNISSAGE TRADITIONNELS. L'HYDRODYNAMIQUE DE DEUX BIOFILTRES DE NITRIFICATION TERTIAIRE A FLUX ASCENDANT DE PLUS DE 100 M#2 DE SURFACE HORIZONTALE A ETE EXPLOREE. IL S'AGIT DU PROCEDE BIOFOR A ACHERES ET DU PROCEDE BIOSTYR A SAINT FONS. LES DTS ONT ETE DETERMINEES A PLUSIEURS POINTS DE LA SECTION HORIZONTALE AU SEIN DU REACTEUR, AFIN D'ESTIMER L'HOMOGENEITE DE L'ECOULEMENT. DES PRELEVEMENTS ONT ETE REALISES A LA BASE ET AU SOMMET DU LIT FILTRANT, AFIN D'ISOLER L'INFLUENCE DE LA ZONE INFERIEURE DU BIOFILTRE, DANS LAQUELLE L'EFFLUENT EST DISTRIBUE, DU LIT FILTRANT SEUL. DANS CE DERNIER, LES CARACTERISTIQUES HYDRODYNAMIQUES COMME LE VOLUME ACTIF ET LA DISPERSION ONT ETE CALCULEES EN CONSIDERANT QUE L'ECOULEMENT EST ASSIMILABLE A UN PISTON AVEC DISPERSION AXIALE. IL A ETE CONCLU QUE LES DIFFERENCES IMPORTANTES DE TEMPS DE SEJOUR OBSERVEES EN DIFFERENTS POINTS DE LA SURFACE DU BIOFILTRE PEUVENT EN PARTIE ETRE EXPLIQUEES PAR LA DISTRIBUTION INEGALE DE L'EFFLUENT A LA BASE DU BIOFILTRE. LA METHODE A AUSSI PERMIS DE DETECTER UN COLMATAGE TEMPORAIRE DU LIT FILTRANT. LES CONSEQUENCES POSSIBLES SUR LES PERFORMANCES DU PROCEDE ONT ETE ESTIMEES A L'AIDE D'UN MODELE CINETIQUE DU PROCESSUS DE NITRIFICATION PAR LE BIOFILM. LES RESULTATS SUGGERENT QUE LES CONSEQUENCES SONT LIMITEES A L'OCCURRENCE D'UNE BRUSQUE ET IMPORTANTE VARIATION DE LA CONCENTRATION D'ENTREE.
Book Synopsis Faecal Sludge Management by : Linda Strande
Download or read book Faecal Sludge Management written by Linda Strande and published by IWA Publishing. This book was released on 2014-08-15 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Environmental Biotechnology by : Hans-Joachim Jördening
Download or read book Environmental Biotechnology written by Hans-Joachim Jördening and published by John Wiley & Sons. This book was released on 2006-03-06 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: A deeper insight into the complex processes involved in this field, covering the biological, chemical and engineering fundamentals needed to further develop effective methodologies. The book devotes detailed chapters to each of the four main areas of environmental biotechnology -- wastewater treatment, soil treatment, solid waste treatment, and waste gas treatment -- dealing with both the microbiological and process engineering aspects. The result is the combined knowledge contained in the extremely successful volumes 11a through 11c of the "Biotechnology" series in a handy and compact form.
Book Synopsis Microbial Fuel Cell by : Debabrata Das
Download or read book Microbial Fuel Cell written by Debabrata Das and published by Springer. This book was released on 2017-12-01 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book represents a novel attempt to describe microbial fuel cells (MFCs) as a renewable energy source derived from organic wastes. Bioelectricity is usually produced through MFCs in oxygen-deficient environments, where a series of microorganisms convert the complex wastes into electrons via liquefaction through a cascade of enzymes in a bioelectrochemical process. The book provides a detailed description of MFC technologies and their applications, along with the theories underlying the electron transfer mechanisms, the biochemistry and the microbiology involved, and the material characteristics of the anode, cathode and separator. It is intended for a broad audience, mainly undergraduates, postgraduates, energy researchers, scientists working in industry and at research organizations, energy specialists, policymakers, and anyone else interested in the latest developments concerning MFCs.
Book Synopsis Advanced Biological Treatment Processes for Industrial Wastewaters by : Francisco J. Cervantes
Download or read book Advanced Biological Treatment Processes for Industrial Wastewaters written by Francisco J. Cervantes and published by IWA Publishing. This book was released on 2006-06-30 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Biological Treatment Processes for Industrial Wastewaters provides unique information relative to both the principles and applications of biological wastewater treatment systems for industrial effluents. Case studies document the application of biological wastewater treatment systems in different industrial sectors such as chemical, petrochemical, food-processing, mining, textile and fermentation. With more than 70 tables, 100 figures, 200 equations and several illustrations, the book provides a broad and deep understanding of the main aspects to consider during the design and operation of industrial wastewater treatment plants. Students, researchers and practitioners dealing with the design and application of biological systems for industrial wastewater treatment will find this book invaluable.
Book Synopsis How to Design Wastewater Systems for Local Conditions in Developing Countries by : David M. Robbins
Download or read book How to Design Wastewater Systems for Local Conditions in Developing Countries written by David M. Robbins and published by IWA Publishing. This book was released on 2014-03-15 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a practical handbook providing a step-by-step approach to the techniques used for characterizing wastewater sources and investigating sites where collection, treatment and reuse/disposal technologies will be installed. It is intended to help enable local implementation of on-site and decentralized wastewater management system (DWMS)for wide scale use in development settings. How to Design Wastewater Systems for Local Conditions in Developing Countries helps local service providers and regulatory officials make informed decisions through the use of tools, checklists and case studies. It includes a link to a web based community of on-site and decentralized wastewater professionals, which contains related tools and case studies. This handbook serves as a reference for training classes, certification programs, and higher education programs in civil and sanitary engineering. There is an increasing interest on the part of local government officials and private sector service providers to implement wastewater treatment systems to solve sanitation problems. The model presented in this handbook promotes activities that first generate data related to source and site conditions that represent critical inputs, and then applies this information to the technology selection process. Matching the most appropriate technologies to the specific needs of the wastewater project is the key that leads to long term sustainability. How to Design Wastewater Systems for Local Conditions in Developing Countries is an invaluable resource for public sector decision makers and private sector service providers in developing countries. It is also a useful text for students at engineering colleges in developing countries interested in taking a class that teaches the methods of decentralized wastewater management system (DWMS) development.
Book Synopsis The Seine River Basin by : Nicolas Flipo
Download or read book The Seine River Basin written by Nicolas Flipo and published by Springer Nature. This book was released on 2021-01-30 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book reviews the water-agro-food and socio-eco-system of the Seine River basin (76,000 km2), and offers a historical perspective on the river’s long-term contamination. The Seine basin is inhabited by circa 17 million people and is impacted by intensive agricultural practices and industrial activities. These pressures have gradually affected its hydrological, chemical and ecological functioning, leading to a maximum chemical degradation between the 1960s and the 1990s. Over the last three decades, while major water-quality improvements have been observed, new issues (e.g. endocrine disruptors, microplastics) have also emerged. The state of the Seine River network, from the headwaters to estuary, is increasingly controlled by the balance between pressures and social responses. This socio-ecosystem provides a unique example of the functioning of a territory under heavy anthropogenic pressure during the Anthropocene era. The achievements made were possible due to the long-term PIREN Seine research program, established in 1989 and today part of the French socio-ecological research network “Zones Ateliers”, itself part of the international Long-term Socio-economic and Ecological Research Network (LTSER). Written by experts in the field, the book provides an introduction to the water budget and the territorial metabolism of the Seine basin, and studies the trajectories and impact of various pollutants in the Seine River. It offers insights into the ecological functioning, the integration of agricultural practices, the analysis of aquatic organic matter, and the evolution of fish assemblages in the Seine basin, and also presents research perspectives and approaches to improve the water quality of the Seine River. Given its scope, it will appeal to environmental managers, scientists and policymakers interested in the long-term contamination of the Seine River.
Book Synopsis Compendium of Sanitation Systems and Technologies by : Elizabeth Tilley
Download or read book Compendium of Sanitation Systems and Technologies written by Elizabeth Tilley and published by . This book was released on 2014 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Integration of Geographic Information Systems and Remote Sensing by : Jeffrey L. Star
Download or read book Integration of Geographic Information Systems and Remote Sensing written by Jeffrey L. Star and published by Cambridge University Press. This book was released on 1997-01-28 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Applications of remote sensing and geographic information systems to resource management and environmental research.
Book Synopsis Bioreactors for Microbial Biomass and Energy Conversion by : Qiang Liao
Download or read book Bioreactors for Microbial Biomass and Energy Conversion written by Qiang Liao and published by Springer. This book was released on 2018-04-20 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses recent trends and developments in the microbial conversion process, which serves as an important route for biofuel production, with particular attention to bioreactors. It combines microbial conversion with multiphase flow and mass transfer, providing an alternative perspective for the understanding of microbial biomass and energy production process as well as enhancement strategy. This book is relevant to students and researchers who work in the fields of renewable energy, engineering and biotechnology. Policymakers, economists and industry engineers also benefit from this book, as it can be used as a resource for the implementation of renewable energy technologies.
Book Synopsis Algal Technologies for Wastewater Treatment and Resource Recovery by : Raul Muñoz
Download or read book Algal Technologies for Wastewater Treatment and Resource Recovery written by Raul Muñoz and published by IWA Publishing. This book was released on 2019-07-26 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over 80% of globally produced wastewater receives little or no treatment before it is disposed into the environment. Therefore, it is urgent to develop new wastewater treatment technologies that are sustainable in the broad sense of the word, i.e. not only produce high quality effluents, but also minimise energy expenses, recover energy and nutrients, and apply technology that is appropriate in relation to the availability of skilled personnel. This book compiles the main outcomes of recent efforts to improve the design of waste stabilisation ponds, and confirms the superior performance of high rate algal ponds as a result of process intensification. Anaerobic digestion devoted to biogas production continues to be the preferred strategy for the energy valorisation of the algal biomass, co-digestion with multiple high C/N ratio substrates gathering significant attention over the past years. The potential of algal biomass as a biosorbent for heavy metal removal (Cu, Ni, F) maintains its share in the research field of water bioremediation, while research on nutrient removal has focused on providing new insights on the mechanism of nitrogen and phosphorus removal from wastewater in algal–bacterial systems. Finally, it is worth noticing that breakthroughs in complementary fields of research such as nanotechnology or lighting technology are gradually being implemented in algal biotechnology, with new products such as nanoparticles for water disinfection or photobioreactors illuminated by low intensity LED panels. In Focus – a book series that showcases the latest accomplishments in water research. Each book focuses on a specialist area with papers from top experts in the field. It aims to be a vehicle for in-depth understanding and inspire further conversations in the sector.
Book Synopsis People and Environment in Africa by : Tony Binns
Download or read book People and Environment in Africa written by Tony Binns and published by . This book was released on 1995-04-12 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of case studies revealing how the indigenous people of Africa are coping with the local environment by using a number of methods such as soil conservation, diversification, pastoral systems, irrigation projects and innovative crop-growing strategies.
Book Synopsis Environmental Technologies to Treat Nitrogen Pollution by : Francisco J. Cervantes
Download or read book Environmental Technologies to Treat Nitrogen Pollution written by Francisco J. Cervantes and published by IWA Publishing. This book was released on 2009-06-30 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental Technologies to Treat Nitrogen Pollution provides a thorough understanding of the principles and applications of environmental technologies to treat nitrogen contamination. The main focus is on water and wastewater treatment, with additional coverage of leachates and off-gasses. The book brings together an up-to-date compilation of the main physical, chemical and biological processes demanded for the removal of nitrogenous contaminants from water, wastewater, leachates and off-gasses. It includes a series of chapters providing a deep and broad knowledge of the principles and applications required for the treatment of nitrogen pollution. Each chapter has been prepared by recognized specialists across the range of different aspects involved in the removal of nitrogenous contaminants from industrial discharges. Environmental Technologies to Treat Nitrogen Pollution is the first book to provide a complete review of all the different processes used for the global management of nitrogen pollution. It also contains updated information about strategies to achieve nitrogen recovery and reuse in different industrial sectors. Several case studies document the application of different environmental technologies to manage nitrogen pollution. This book will be of interest to lecturers and graduate students in the following subject areas: Environmental Engineering, Environmental Biotechnology, wastewater treatment plant design, water pollution control, contaminants recovery and reuse. The book will also be an attractive reference for environmental engineering consultants.
Book Synopsis Water Management and the Environment: Case Studies by : Martina Zelenakova
Download or read book Water Management and the Environment: Case Studies written by Martina Zelenakova and published by Springer. This book was released on 2018-04-24 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together contributions from experts in water management, scientists, researchers, academics and lecturers, sharing experiences and successes in this field. It is devoted to a wide range of water resources management issues, including water quality to water quantity, considering all impacts of water issues in the environment. The book presents international approaches to the latest developments in both the fundamental bases and the applicability of state-of-the-art knowledge that can be effectively used for solving a variety of large problems in integrated water resources management. The main focus of the book is on water pollution - physical, chemical, biological, and geographical pollution, hydrology problems, and limnology tasks.
