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Author: Bruno Coulomb Publisher: ISBN: Category : Languages : fr Pages : 0
Book Description
L'evolution constante des normes de qualite de l'eau et les nouvelles pratiques industrielles impliquent le developpement de procedures simples et rapides, adaptees aux techniques d'analyse en continu. Les metaux presentent, parmi les nombreux polluants rejetes dans le milieu naturel, un risque sanitaire important et leur concentration doit etre controlee frequemment dans les eaux naturelles et les effluents, sur site, afin de permettre une prise de decision rapide en cas de pollution accidentelle. Cependant, les methodes usuelles pour l'analyse des metaux sont couteuses et complexes, et ne permettent pas leur determination sur site. L'objectif de cette etude est donc de developper une procedure analytique simple et rapide pour l'analyse de 6 metaux (cu, fe, hg, ni, pb, zn) dans les eaux, adaptable a un analyseur en continu, par l'utilisation d'une separation complexometrique couplee a une detection u.v. Visible robuste, apres une etape rapide de photo-oxydation des echantillons. Dans un premier temps, differents reactifs ont ete elabores pour etre specifiques aux elements metalliques etudies. Pour chaque reactif, chaque complexe metallique forme presente une absorptivite differente des autres complexes et des ligands sous forme libre, permettant ainsi la differenciation des differents complexes metalliques et la quantification des metaux etudies par l'utilisation d'un calcul de deconvolution spectrale, realise sur des fenetres de longueurs d'onde dependant des metaux etudies et des reactifs utilises. La procedure proposee montre des resultats satisfaisants en comparaison avec la methode de reference d'analyse des metaux, et permet la determination quasi-simultanee de 6 metaux dans les eaux naturelles et les effluents industriels.
Author: Bruno Coulomb Publisher: ISBN: Category : Languages : fr Pages : 0
Book Description
L'evolution constante des normes de qualite de l'eau et les nouvelles pratiques industrielles impliquent le developpement de procedures simples et rapides, adaptees aux techniques d'analyse en continu. Les metaux presentent, parmi les nombreux polluants rejetes dans le milieu naturel, un risque sanitaire important et leur concentration doit etre controlee frequemment dans les eaux naturelles et les effluents, sur site, afin de permettre une prise de decision rapide en cas de pollution accidentelle. Cependant, les methodes usuelles pour l'analyse des metaux sont couteuses et complexes, et ne permettent pas leur determination sur site. L'objectif de cette etude est donc de developper une procedure analytique simple et rapide pour l'analyse de 6 metaux (cu, fe, hg, ni, pb, zn) dans les eaux, adaptable a un analyseur en continu, par l'utilisation d'une separation complexometrique couplee a une detection u.v. Visible robuste, apres une etape rapide de photo-oxydation des echantillons. Dans un premier temps, differents reactifs ont ete elabores pour etre specifiques aux elements metalliques etudies. Pour chaque reactif, chaque complexe metallique forme presente une absorptivite differente des autres complexes et des ligands sous forme libre, permettant ainsi la differenciation des differents complexes metalliques et la quantification des metaux etudies par l'utilisation d'un calcul de deconvolution spectrale, realise sur des fenetres de longueurs d'onde dependant des metaux etudies et des reactifs utilises. La procedure proposee montre des resultats satisfaisants en comparaison avec la methode de reference d'analyse des metaux, et permet la determination quasi-simultanee de 6 metaux dans les eaux naturelles et les effluents industriels.
Author: Debbie Stokes Publisher: John Wiley & Sons ISBN: 0470065400 Category : Science Languages : en Pages : 247
Book Description
Offers a simple starting point to VPSEM, especially for new users, technicians and students containing clear, concise explanations Crucially, the principles and applications outlined in this book are completely generic: i.e. applicable to all types of VPSEM, irrespective of manufacturer. Information presented will enable reader to turn principles into practice Published in association with the Royal Microscopical Society (RMS) -www.rms.org.uk
Author: Linda Strande Publisher: IWA Publishing ISBN: 1780404735 Category : Technology & Engineering Languages : en Pages : 428
Book Description
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.
Author: Ahmed Belasri Publisher: Springer Nature ISBN: 9811554447 Category : Technology & Engineering Languages : en Pages : 659
Book Description
This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.
Author: H. R. Sasse Publisher: Springer ISBN: Category : Science Languages : en Pages : 792
Book Description
Preface Adhesion is a phenomenon architects and civil engineers are not very familiar with. In other disciplines knowledge about surface properties and the background of bonding energies is also far from satisfactory; nevertheless there are many important· applications in concrete engineering, where adhesion is necessary for success and durability. These include: - coating and painting - repair of concrete surfaces - bonding of fresh to old concrete - crack injection - glueing of precast elements - glueing of steel to concrete, etc. In 1981 RILEM established the technical committee 52-RAC 'Resin Adherence to Concrete'. The main aims of the committee's work were - to collect research results and practical experiences - to initiate and coordinate research programs - to develop, on a scientific base, test methods for field and for laboratory purposes. One of the results of the committee's work is a state-of-the-art report, which will be presented orally as a General Report at the International Symposium ISAP '86, and will be printed either in the RILEM journal Materials and Structures or separately. Several test recommendations have been elaborated and will be prepared as drafts for the participants ofISAP '86. These are: - direct tensile test - pull-off test - direct shear test - slant shear test - four-point bending test - dynamic loading test - thermal compatibility test (two versions) - injectibility test.
Author: Jean-Louis Barrat Publisher: Cambridge University Press ISBN: 9780521789530 Category : Science Languages : en Pages : 410
Book Description
Presenting a unified approach, this book focusses on the concepts and theoretical methods that are necessary for an understanding of the physics and chemistry of the fluid state. The authors do not attempt to cover the whole field in an encyclopedic manner. Instead, important ideas are presented in a concise and rigorous style, and illustrated with examples from both simple molecular liquids and more complex soft condensed matter systems such as polymers, colloids, and liquid crystals.
Author: Jacqueline Ki-Zerbo Publisher: Univ of California Press ISBN: 9780520066960 Category : History Languages : en Pages : 372
Book Description
"This volume covers the period from the end of the Neolithic era to the beginning of the seventh century of our era. This lengthy period includes the civilization of Ancient Egypt, the history of Nubia, Ethiopia, North Africa and the Sahara, as well as of the other regions of the continent and its islands."--Publisher's description
Author: J. D. Van Der Waals Publisher: Courier Corporation ISBN: 9780486495934 Category : Science Languages : en Pages : 336
Book Description
This much-cited thesis by J. D. van der Waals, the recipient of the 1910 Nobel Prize in physics, is accompanied by an introductory essay by J. S. Rowlinson and another work by van der Waals on the theory of liquid mixtures. 1988 edition.
Author: Sébastien Forget Publisher: Springer ISBN: 3642367054 Category : Science Languages : en Pages : 179
Book Description
Organic lasers are broadly tunable coherent sources, potentially compact, convenient and manufactured at low-costs. Appeared in the mid 60’s as solid-state alternatives for liquid dye lasers, they recently gained a new dimension after the demonstration of organic semiconductor lasers in the 90's. More recently, new perspectives appeared at the nanoscale, with organic polariton and surface plasmon lasers. After a brief reminder to laser physics, a first chapter exposes what makes organic solid-state organic lasers specific. The laser architectures used in organic lasers are then reviewed, with a state-of-the-art review of the performances of devices with regard to output power, threshold, lifetime, beam quality etc. A survey of the recent trends in the field is given, highlighting the latest developments with a special focus on the challenges remaining for achieving direct electrical pumping of organic semiconductor lasers. A last chapter covers the applications of organic solid-state lasers.
Author: Bruno Coulomb
Author: Bruno Coulomb
Author: Debbie Stokes
Author: Laurent Fontaine
Author: Linda Strande
Author: Ahmed Belasri
Author: H. R. Sasse
Author: Jean-Louis Barrat
Author: Jacqueline Ki-Zerbo
Author: J. D. Van Der Waals
Author: Sébastien Forget