Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Denitrification Biologique Dune Nappe Phreatique Polluee Par Des Composes Azotes Dorigine Industrielle
Download Denitrification Biologique Dune Nappe Phreatique Polluee Par Des Composes Azotes Dorigine Industrielle full books in PDF, epub, and Kindle. Read online Denitrification Biologique Dune Nappe Phreatique Polluee Par Des Composes Azotes Dorigine Industrielle ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Dénitrification biologique d'une nappe phréatique polluée par des composés azotés d'origine industrielle by : Florence Chevron
Download or read book Dénitrification biologique d'une nappe phréatique polluée par des composés azotés d'origine industrielle written by Florence Chevron and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les eaux souterraines exploitées sont souvent peu profondes et facilement accessibles aux pollutions, notamment aux nitrates. Il est donc important d'étudier la facilité technique de systèmes simples et peu coûteux de dénitrification biologique in situ, de nappes phréatiques. Dans le cas présent, l'aquifère crayeux a été pollué par des infiltrations en provenance d'une usine d'engrais azotes. L'acquisition de paramètres physico-chimiques et biologiques dans la zone d'étude, a montré de fortes teneurs en nitrates (parfois supérieures à 1500 mg/l), une faible population bactérienne et l'absence de substrat carbone disponible pour ces micro-organismes. Lors d'essais de reproduction de l'écosystème naturel, en réacteurs-pilotes a biofilms fixés sur des supports minéraux, une dénitrification biologique rapide s'est mise en place. L'apport optimal en carbone organique est détermine égal à 0,8-1 g dco/g no3 à éliminer. L'addition de métaux a réduit la concentration résiduelle en nitrites de 80 à 98% et augmenté le rendement de dénitratation de 95 à 98%. Par ailleurs, l'étude en culture pure d'alcaligènes dénitrificans et une souche h a confirmé l'incidence, dans le processus de dénitritation, des éléments métalliques des les très faibles concentrations (inférieures à 0,1 mg/l). La mise en place d'une installation pilote de terrain devra intégrer les résultats de laboratoire, et particulièrement le choix du système nutritif pour les micro-organismes (carbone, phosphore et métaux).
Book Synopsis A GEODE-GeoFrance 3D Workshop on Orogenic Gold Deposits in Europe with Emphasis on the Variscides by : Vincent Bouchot
Download or read book A GEODE-GeoFrance 3D Workshop on Orogenic Gold Deposits in Europe with Emphasis on the Variscides written by Vincent Bouchot and published by . This book was released on 2000 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Origin of Granites and Related Rocks by : Bernard Barbarin
Download or read book The Origin of Granites and Related Rocks written by Bernard Barbarin and published by . This book was released on 1999 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Institut national de recherche en informatique et en automatique (France) Publisher : ISBN 13 : Total Pages :168 pages Book Rating :4.F/5 ( download)
Book Synopsis Colloque Modélisation du sous-sol by : Institut national de recherche en informatique et en automatique (France)
Download or read book Colloque Modélisation du sous-sol written by Institut national de recherche en informatique et en automatique (France) and published by . This book was released on 1997 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 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 The Theory of the Chemostat by : Hal L. Smith
Download or read book The Theory of the Chemostat written by Hal L. Smith and published by Cambridge University Press. This book was released on 1995-01-27 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Basic modelling, analysis and simulation of systems that have proven effective in real ecological applications.
Book Synopsis Basic Technics in Ecological Farming / Techniques de Base en Agriculture Biologique / Grundsätzliche Verfahren der ökologischen Landwirtschaft / Le Maintien de la Fertilité des Sols / The Maintenance of Soil Fertility / Die Erhaltung der Bodenfruchtbarkeit by : Stuart Hill
Download or read book Basic Technics in Ecological Farming / Techniques de Base en Agriculture Biologique / Grundsätzliche Verfahren der ökologischen Landwirtschaft / Le Maintien de la Fertilité des Sols / The Maintenance of Soil Fertility / Die Erhaltung der Bodenfruchtbarkeit written by Stuart Hill and published by Birkhäuser. This book was released on 2013-12-14 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dynamical Modelling & Estimation in Wastewater Treatment Processes by : D. Dochain
Download or read book Dynamical Modelling & Estimation in Wastewater Treatment Processes written by D. Dochain and published by IWA Publishing. This book was released on 2001-12-01 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental quality is becoming an increasing concern in our society. In that context, waste and wastewater treatment, and more specifically biological wastewater treatment processes play an important role. In this book, we concentrate on the mathematical modelling of these processes. The main purpose is to provide the increasing number of professionals who are using models to design, optimise and control wastewater treatment processes with the necessary background for their activities of model building, selection and calibration. The book deals specifically with dynamic models because they allow us to describe the behaviour of treatment plants under the highly dynamic conditions that we want them to operate (e.g. Sequencing Batch Reactors) or we have to operate them (e.g. storm conditions, spills). Further extension is provided to new reactor systems for which partial differential equation descriptions are necessary to account for their distributed parameter nature (e.g. settlers, fixed bed reactors). The model building exercise is introduced as a step-wise activity that, in this book, starts from mass balancing principles. In many cases, different hypotheses and their corresponding models can be proposed for a particular process. It is therefore essential to be able to select from these candidate models in an objective manner. To this end, structure characterisation methods are introduced. Important sections of the book deal with the collection of high quality data using optimal experimental design, parameter estimation techniques for calibration and the on-line use of models in state and parameter estimators. Contents Dynamical Modelling Dynamical Mass Balance Model Building and Analysis Structure Characterisation (SC) Structural Identifiability Practical Identifiability and Optimal Experiment Design for Parameter Estimation (OED/PE) Estimation of Model Parameters Recursive State and Parameter Estimation Glossary Nomenclature
Download or read book Water, 1975 written by and published by . This book was released on 1975 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Chemostat written by Jérôme Harmand and published by John Wiley & Sons. This book was released on 2017-07-19 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: Invented by J. Monod, and independently by A. Novick and L. Szilard, in 1950, the chemostat is both a micro-organism culturing device and an abstracted ecosystem managed by a controlled nutrient flow. This book studies mathematical models of single species growth as well as competition models of multiple species by integrating recent work in theoretical ecology and population dynamics. Through a modeling approach, the hypotheses and conclusions drawn from the main mathematical results are analyzed and interpreted from a critical perspective. A large emphasis is placed on numerical simulations of which prudent use is advocated. The Chemostat is aimed at readers possessing degree-level mathematical knowledge and includes a detailed appendix of differential equations relating to specific notions and results used throughout this book.
Book Synopsis Forest Decline and Atmospheric Deposition Effects in the French Mountains by : M. Kaennel
Download or read book Forest Decline and Atmospheric Deposition Effects in the French Mountains written by M. Kaennel and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forest decline became a matter of public and scientific concern in France in 1983 when conifers in the Vosges mountains were found to exhibit unusual crown deterioration. An impassioned controversy on a supposedly large scale forest health problem was then in full swing in Central Europe. A co-ordinated research programme entitled DEFORPA ("Deperissement des For~ts et Pollution AtmospMrique") was launched in 1984. This programme ran from 1984 to 1991 and a number of projects are still in progress. The Programme was sponsored by three French ministries (Enviroument, Agriculture and Forestry, Research and Technologyl), several state agencies, various regional authorities and the Commission of the European Communities (DO xn and DG VI). Initially, emphasis was solely laid on the understanding of forest decline in the mountainous areas - because damage was most obvious there - in relation to natural and man-made factors. Air pollution was given high but not overwhelming priority. Thus, the DEFORPA Programme was not in its essence a nation-wide assessment of air pollution effects, unlike a number of national acidification research programmes in Europe and North America. During. the programme, however, the areas of concern expanded. In particular, research into water acidification in the Vosges mountains was developed in parallel with the DEFORPA Programme, and possible eutrophication of the ground flora in northeastern France became the subject of new research.
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 Gestion Des Ressources en Eau by : Institut d'administration publique du Canada
Download or read book Gestion Des Ressources en Eau written by Institut d'administration publique du Canada and published by IRPP. This book was released on 1986 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Ecology written by P. Lavelle and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt: A number of excellent textbooks on general ecology are currently available but‚ to date‚ none have been dedicated to the study of soil ecology. This is important because the soil‚ as the ‘epidermis’ of our planet‚ is the major component of the terrestrial biosphere. In the present age‚ it is difficult to understand how one could be interested in general ecology without having some knowledge of the soil and further‚ to study the soil without taking into account its biological components and ecological setting. It is this deficiency that the two authors‚ Patrick Lavelle and Alister Spain‚ have wished to address in writing their text. A reading of this work‚ entitled ‘Soil Ecology’‚ shows it to be very complete and extremely innovative in its conceptual plan. In addition‚ it follows straightforwardly through a development which unfolds over four substantial chapters. Firstly‚ the authors consider the soil as a porous and finely divided medium of b- organomineral origin‚ whose physical structure and organisation foster the development of a multitude of specifically adapted organisms (microbial communities‚ roots of higher plants‚ macro-invertebrates).
Book Synopsis Urban Water Cycle Processes and Interactions by : Jiri Marsalek
Download or read book Urban Water Cycle Processes and Interactions written by Jiri Marsalek and published by CRC Press. This book was released on 2014-04-21 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Effective management of urban water should be based on a scientific understanding of the impact of human activity on both the urban hydrological cycle - including its processes and interactions - and the environment itself. Such anthropogenic impacts, which vary broadly in time and space, need to be quantified with respect to local climate, urban d
Book Synopsis Inter-Basin Water Transfer by : Fereidoun Ghassemi
Download or read book Inter-Basin Water Transfer written by Fereidoun Ghassemi and published by Cambridge University Press. This book was released on 2012-04-19 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book was first published in 2007. Increasing demands for irrigation, domestic and industrial water have generated a massive growth world-wide in the number of large water infrastructure projects involving the transfer of water from basins considered to have surplus water to those where the demand for water has exceeded or is expected to exceed supplies. Using the experiences of projects in Australia, United States, Canada, China and India, this book examines case studies within the diverse geographical, climatic, economic, and policy regimes operating in these countries. It examines the water resources of Australia, the driest inhabited continent, and explores inter-basin water transfer projects in the United States, Canada, China and India, examining their benefits and impacts within these nations' contrasting economies and governance systems. This comprehensive and well-illustrated text will be of great interest to professionals and researchers in the fields of hydrology, water resources, and to those engaged in environmental science, policy and regulation.
