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Contribution A Letude Du Metabolisme Bacterien Dans Lenlevement Biologique Du Phosphore Des Eaux Usees Microforme
Download Contribution A Letude Du Metabolisme Bacterien Dans Lenlevement Biologique Du Phosphore Des Eaux Usees Microforme full books in PDF, epub, and Kindle. Read online Contribution A Letude Du Metabolisme Bacterien Dans Lenlevement Biologique Du Phosphore Des Eaux Usees Microforme ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Eat Sleep Bagpipes Repeat by : Mirako Press
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!
Book Synopsis Contribution à l'étude du métabolisme du phosphore chez les graminées by : Victor Caumartin
Download or read book Contribution à l'étude du métabolisme du phosphore chez les graminées written by Victor Caumartin and published by FeniXX. This book was released on 1955-01-01T00:00:00+01:00 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cet ouvrage est une réédition numérique d’un livre paru au XXe siècle, désormais indisponible dans son format d’origine.
Book Synopsis Phosphorus in Fresh Water and the Marine Environment by : S. H. Jenkins
Download or read book Phosphorus in Fresh Water and the Marine Environment written by S. H. Jenkins and published by Elsevier. This book was released on 2013-10-22 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phosphorus in Fresh Water and the Marine Environment investigates sources of phosphorus in fresh water and the marine environment and the problems it causes. The importance of phosphate precipitation as an inbuilt safety device against overproduction of algae in the oceans is discussed, along with the deposition and absorption of phosphates in sediments. The source of the phosphorus in lakes and rivers is considered in relation to population density and distribution. This book is comprised of 26 chapters and begins with a discussion on natural phosphate sources in relation to phosphate budgets, paying particular attention to eutrophication and soil erosion. The significance of man-made sources of phosphorus, such as fertilizers and farming, detergents and sewage, is then examined. Subsequent chapters focus on the role of phosphorus in the growth of plants and animals in rivers, lakes, and the sea; the hydrogeochemical cycling of phosphorus; phosphorus analysis in sea water; and safety evaluation of substitutes for phosphates in detergents. The microbiology of an activated sludge wastewater treatment plant chemically treated for phosphorus removal is also explored. This monograph will be of interest to policymakers concerned with water pollution control.
Book Synopsis Proceedings of the Third International Workshop on Phosphorus in Sediments by : P.C.M. Boers
Download or read book Proceedings of the Third International Workshop on Phosphorus in Sediments written by P.C.M. Boers and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Workshop was organized to assess the status of knowledge on the behaviour of phosphorus in sediments and to define gaps and reassess research strategies, particularly with respect to prevalent methodology and future approach; and to define gaps and reassess research strategies for water management measures in aquatic ecosystems, especially in relation to the release of phosphorus from the sediments and its impact on the functioning of the whole system.
Book Synopsis Devenir du phosphore apporté sur les sols et risques de contamination des eaux de surface by : Hugues Vanden Bossche
Download or read book Devenir du phosphore apporté sur les sols et risques de contamination des eaux de surface written by Hugues Vanden Bossche and published by . This book was released on 1999 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: CETTE ETUDE PORTE SUR LE DEVENIR DU PHOSPHORE (P) DES BOUES RESIDUAIRES DE STATION D'EPURATION EPANDUES SUR LES SURFACES AGRICOLES ET LES RISQUES DE CONTAMINATION DES EAUX DE SURFACES. LES CARACTERISTIQUES CHIMIQUES DES BOUES ET LES FORMES DU P ONT ETE DETERMINEES PAR DES ANALYSES ELEMENTAIRES EN FRX, ICP-SEA ET ICP-SM ; PAR DES EXTRACTIONS CHIMIQUES ; PAR DES INVESTIGATIONS AU MEB ET DE LA MICROANALYSE X ET PAR L'ETUDE DE LA DRX. LA MOBILITE ET LA BIO-DISPONIBILITE DU P DES BOUES ONT ETE ESTIMEES PAR L'ETUDE D'ISOTHERMES DE DESORPTION, DE LA CINETIQUE DE DILUTION ISOTOPIQUE DE 3 2P (EN CONDITIONS OXYDANTES OU REDUCTRICES) ET DES ESSAIS DE CULTURE DE POIREAUX (AVEC ET SANS MYCORHIZES). LE TRANSFERT DU P A ETE MESURE DANS LES EAUX DE RUISSELLEMENT A LA SURFACE DE PARCELLES AGRICOLES AMENDEES AVEC DES BOUES, LORS DE PLUIES NATURELLES OU SIMULEES. LES BOUES ISSUES DE STATIONS EQUIPEES D'UNE DEPHOSPHATATION BIOLOGIQUE COMPORTENT UNE FRACTION DE P TRES MOBILE, ASSIMILABLE PAR LES PLANTES. L'ADJONCTION DE SELS DE FER IMMOBILISE UNE PART DU P SOUS FORME DE PHOSPHATES DE FER, LA MOBILITE DU P EST ALORS CONTROLEE PAR LA SORPTION SUR DES OXY(-HYDRO)XYDES DE FER. L'APPARITION DE CONDITIONS REDUCTRICES A LA FAVEUR DE L'ACTIVITE BIOLOGIQUE CONCOURT A LA LIBERATION PARTIELLE DU P. LA DESHYDRATATION ET LE SECHAGE DES BOUES CONTRIBUENT A ACCROITRE LA PART IMMOBILISEE. LE CHAULAGE FAVORISE LA PRECIPITATION D'APATITE QUI REND LE P INACCESSIBLE AUX PLANTES. LES BOUES DESHYDRATEES FORMENT DES AGREGATS A LA SURFACE DU SOL. LE P EST ALORS TRANSFERE AU SOL PAR LIXIVIATION. SELON LA BOUE, LA PERTE DE P ATTEINT 25 A 60% DANS LES DEUX MOIS QUI SUIVENT L'EPANDAGE. CE PHENOMENE EST INSUFFISANT POUR AFFECTER LA QUALITE DES EAUX DE RUISSELLEMENT DONT LE P, SURTOUT PARTICULAIRE, PROVIENT DU SOL. LES BOUES LIQUIDES PROVOQUENT UNE AUGMENTATION DE LA TENEUR EN P SOLUBLE DANS L'EAU, LORS DE PLUIES INTENSES. MAIS, ELLES PRESERVENT LA STRUCTURE DE LA SURFACE DU SOL CE QUI REDUIT L'EROSION ET LES PERTES DE P TOTAL.
