Download or read book Traitement biologique des lisiers de porcs en boues activ es written by Marie-Line Daumer and published by Editions Quae. This book was released on 2005 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthèse des connaissances techniques du traitement biologique des lisiers de porcs à la ferme : stockage et homogénéisation du lisier ; systèmes de séparation solide/liquide ; fonctionnement d'un réacteur de boues activées par aération séquentielle ; conduite du procédé et dysfonctionnements ; utilisation des produits du traitement.
Download or read book Trace elements in animal production systems written by P. Schlegel and published by BRILL. This book was released on 2023-08-28 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book deals with trace elements, such as cobalt, copper, iron, manganese, selenium and zinc which are essential to modern animal nutrition, but are increasingly detrimental to soil and water quality in today's globalized production. The goal in finding a sustainable balance between trace element use in animal nutrition and its impact on the environment is addressed by focussing on the following questions: - What is the trace element flow on farm, regional or national scale and which tools are available to influence the flow? - What are today's and future soil and water quality in regards to trace minerals? - What are the trace mineral loading limits in soil and water from a health and legal standpoint? - Which technologies exist to modify slurry trace element contents? - What is today's knowledge on quantitative and qualitative trace element requirements and recommended supplementation for ruminants, swine, poultry, fish and crustaceans? - What is trace element bioavailability and how can it be determined? - To which extent are trace minerals related to immune response? - What are the future issues to be addressed in trace element nutrition? This book contains the peer-reviewed papers of the first International Symposium on Trace Elements in Animal Production Systems. It is a valuable resource for researchers and professionals in the life sciences of animal nutrition, soil and water quality, for actors in the feed industry and policy making."
Download or read book Cycling of Mineral Nutrients in Agricultural Ecosystems written by M Frissel and published by Elsevier. This book was released on 2012-12-02 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cycling of Mineral Nutrients in Agricultural Ecosystems contains the papers presented in the first international environmental symposium of the Royal Netherlands Land Development Society held at Amsterdam on 1976. The symposium is cosponsored by the International Association for Ecology and Elsevier Scientific Publishing Company. This compilation reflects the exchange of information and ideas by specialists and participants of the symposium. The book is comprised of nine chapters, which cover the following concepts of nutrient cycling in agricultural ecosystems: principles and control of nutrient cycling; description and classification of agro-ecosystems; nutrient cycling data from different countries; and general discussion on nutrient balances, changes in soil pools, manipulations, and future researches. This book also offers potential background and perspectives for further studies on nutrient cycling in agro-ecosystems, presenting a view on what directions future research should take. This volume will be an invaluable reference source for environmental science students and professionals. Research workers in agriculture and other environmental disciplines will also find this book useful.
Download or read book Trace Elements in Animal Production Systems written by P. Schlegel and published by Brill Wageningen Academic. This book was released on 2008 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book deals with trace elements, such as cobalt, copper, iron, manganese, selenium and zinc which are essential to modern animal nutrition, but are increasingly detrimental to soil and water quality in today's globalized production. The goal in finding a sustainable balance between trace element use in animal nutrition and its impact on the environment is addressed by focussing on the following questions: - What is the trace element flow on farm, regional or national scale and which tools are available to influence the flow? - What are today's and future soil and water quality in regards to trace minerals? - What are the trace mineral loading limits in soil and water from a health and legal standpoint? - Which technologies exist to modify slurry trace element contents? - What is today's knowledge on quantitative and qualitative trace element requirements and recommended supplementation for ruminants, swine, poultry, fish and crustaceans? - What is trace element bioavailability and how can it be determined? - To which extent are trace minerals related to immune response? - What are the future issues to be addressed in trace element nutrition? This book contains the peer-reviewed papers of the first International Symposium on Trace Elements in Animal Production Systems. It is a valuable resource for researchers and professionals in the life sciences of animal nutrition, soil and water quality, for actors in the feed industry and policy making."
Download or read book Odour and Ammonia Emissions from Livestock Farming written by V. C. Nielsen and published by Taylor & Francis. This book was released on 1990-12-31 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of a seminar held in Silsoe, UK, 26-28 March 1990.
Download or read book Eat Sleep Bagpipes Repeat written by Mirako Press and published by Createspace Independent Publishing Platform. This book was released on 2018-07-18 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: This adorable music notebook is perfect for staffs, kids and musicians. The high-quality manuscript book includes 110 pages of 12 staves. Let exercise your composing skills with this well-designed music sketchbook! Enjoy!
Download or read book Wastewater Stabilization Ponds written by World Health Organization. Regional Office for the Eastern Mediterranean and published by World Health Organization. This book was released on 1987 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 3rd World Water Congress written by IWA Programme Committee and published by IWA Publishing (International Water Assoc). This book was released on 2003-01-01 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Air Emissions from Animal Feeding Operations written by National Research Council and published by National Academies Press. This book was released on 2003-04-07 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Air Emissions from Animal Feeding Operations: Current Knowledge, Future Needs discusses the need for the U.S. Environmental Protection Agency to implement a new method for estimating the amount of ammonia, nitrous oxide, methane, and other pollutants emitted from livestock and poultry farms, and for determining how these emissions are dispersed in the atmosphere. The committee calls for the EPA and the U.S. Department of Agriculture to establish a joint council to coordinate and oversee short - and long-term research to estimate emissions from animal feeding operations accurately and to develop mitigation strategies. Their recommendation was for the joint council to focus its efforts first on those pollutants that pose the greatest risk to the environment and public health.
Download or read book Le traitement biologique a robie du lisier de porc written by Fabrice Béline and published by . This book was released on 2001 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comment contrôler les différents paramètres de fonctionnement des unités de traitement aérobie du lisier de porc ? Différents travaux et essais menés en laboratoire à l'aide d'un pilote instrumenté mettent en évidence leur influence sur l'élimination de l'azote. Il est désormais possible de réduire l'émission de formes azotées gazeuses vers l'atmosphère. Dans cette optique, l'ouvrage formule les principales recommandations pour le dimensionnement et la gestion des unités de traitement du lisier de porc ; elles intéresseront tous les acteurs de la filière.
Download or read book Traitement du phosphore dans les petites stations d puration boues activ es written by and published by La Documentation Française. This book was released on 2004 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Traitement du phosphore dans les petites stations d puration boues activ es written by Cemagref, and published by . This book was released on 2004 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: Le traitement du phosphore contenu dans les eaux usées relève d'une double exigence réglementaire et environnementale dont l'objectif est la limitation de l'eutrophisation des eaux continentales. Le présent ouvrage propose aux petites collectivités un outil d'aide à la décision, en termes de choix technique et financier, pour maîtriser l'élimination du phosphore des eaux résiduaires par voie biologique et par voie physicochimique. Il présente brièvement les aspects réglementaires et fait le point sur l'origine et les formes du phosphore. Il décrit ensuite les aspects techniques des filières biologique et physicochimique sous forme de recommandations en termes de dimensionnement et de gestion. Il offre enfin une comparaison économique des différents modes du traitement du phosphore.
