FAISABILITE D'UN PROCEDE A MEMBRANE LIQUIDE POUR L'EXTRACTION CONTINUE DE L'ETHANOL PRODUIT PAR FERMENTATION PDF Download

Author: Pierre Christen
Publisher:
ISBN:
Category :
Languages : fr
Pages : 194

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Book Description
UNE MEMBRANE LIQUIDE COMPOSEE D'UN SUPPORT POREUX HYDROPHOBE IMPREGNE D'UN SOLVANT ORGANIQUE A ETE MISE AU POINT; L'ISOTRIDECANOL S'EST AVERE ETRE BIOCOMPATIBLE, IMPERMEABLE AUX SELS ET AU GLUCOSE ET AUTORISE UN FLUX D'ETHANOL IMPORTANT (35 G/H.M**(2)). CETTE MEMBRANE LIQUIDE MISE EN OEUVRE AVEC UNE PHASE RECEPTRICE AQUEUSE A PERMIS, PAR L'EXTRACTION DE L'ETHANOL INHIBITEUR, UNE DETOXIFICATION SIGNIFICATIVE D'UN MOUT DE FERMENTATION EN ACTIVITE: AMELIORATION DE LA VIABILITE DES LEVURES ET DE PRODUCTIVITE DU FERMENTEUR D'UN FACTEUR 2,5. EN OUTRE, CE PROCEDE D'EXTRACTION A PERMIS DE METTRE EN EVIDENCE L'ACTIVITE INHIBITRICE DE METABOLITES SECONDAIRES. UNE ETAPE SUPPLEMENTAIRE DE CONCENTRATION EN LIGNE DE L'ETHANOL EXTRAIT PEUT ETRE REALISEE EN UTILISANT LE PROCEDE A MEMBRANE LIQUIDE AVEC UNE PHASE RECEPTRICE GAZEUSE ET UN PIEGE A FROID. ENFIN, UNE MODELISATION MATHEMATIQUE DES PHENOMENES DE TRANSFERT D'ETHANOL A TRAVERS UNE MEMBRANE LIQUIDE A PERMIS DE MIEUX CERNER LES RESISTANCES AU TRANSFERT ET A MONTRE L'IMPORTANCE DE PARAMETRES LIES AU SUPPORT (EPAISSEUR, POROSITE, TORTUOSITE, DES PORES) ET LIES AU SOLVANT (COEFFICIENT DE PARTAGE ET DIFFUSIVITE)

Author: Honoré Yves Alani-N'Guessamble
Publisher:
ISBN:
Category :
Languages : fr
Pages : 13

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Book Description
Les expérimentations concernant la fermentation d'un jus d'ananas, la mise au point d'un système de culture continue par bioréacteur à membrane et l'utilisation d'un outil de simulation pour la représentation des résultats expérimentaux, constituent l'essentiel de ce travail de recherche l'ananas a fait l'objet d'une étude très approfondie et a conduit à l'isolement, l'identification et la multiplication d'une souche levurienne naturelle pouvant servir de ferment pour la réalisation d'une boisson alcoolisée (degré alcoolique 3 à 6%vol.) Des expériences cinétiques menés en réacteur discontinu ont permis : - de déterminer la faisabilité technologique de la fermentation d'un jus d'ananas ; - de définir les conditions optimales d'une telle opération ; - et d'établir le meilleur compromis procédé/matières premières : qualité organoleptique du produit final les essais en bioréacteur à membrane, ont rendu possible la validation de la technique du couplage fermentation-filtration pour la production d'une biomasse naturelle l'augmentation de la concentration cellulaire et la fabrication en continu d'une boisson fermentée obtenue directement filtrée stérile. Les résultats des analyses sensorielles démontrent que les produits finis sont de qualité organoleptique satisfaisante, c'est-à-dire, exempts de défauts majeurs au gout. Ces boissons se rapprochent des cidres ; elles ont en plus la particularité de conserver le parfum et la saveur du fruit d'origine sans addition d'arôme. Grace à un outil de simulation bio log gic, développé au laboratoire de génie et informatique chimiques (GIC) de l'Ecole Centrale Paris (ECP), le changement de variables, prenant comme référence de calcul les résultats expérimentaux obtenus, et l'extrapolation de ces données sont possibles

Author: Ahmed Belasri
Publisher: Springer Nature
ISBN: 9811554447
Category : Technology & Engineering
Languages : en
Pages : 659

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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: Linda Strande
Publisher: IWA Publishing
ISBN: 1780404735
Category : Technology & Engineering
Languages : en
Pages : 428

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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: Biodiesel Production Technologies Challenges and Future Prospects Task Committee
Publisher:
ISBN: 9780784415344
Category : Biodiesel fuels
Languages : en
Pages : 848

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Book Description
Biodiesel Production: Technologies, Challenges, and Future Prospects provides in-depth information on fundamentals, approaches, technologies, source materials and associated socio-economic and political impacts of biodiesel production.

Author: Satinder Kaur Brar
Publisher: Springer Science & Business Media
ISBN: 1461480051
Category : Science
Languages : en
Pages : 500

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Book Description
Agro-industrial wastes are end-products emerging after industrial processing operations and also from their treatment and disposal e.g. solid fruit wastes and sludge. The agro-industrial wastes are often present in multiphase and comprise multicomponent. Nevertheless, these wastes are a goldmine as they possess valuable organic matter which can be diverted towards high value products ranging from polymers to antibiotics to platform chemicals. There have been plenty of books published on bioenergy, enzymes and organic acids, among others. However, this emerging field of biochemical has not yet been covered so far which is an important entity of the biorefinery model from waste biomass and needs to be understood from fundamental, applied as well as commercial perspective which has been laid out in this book.

Author: Satinder Kaur Brar
Publisher:
ISBN: 9781619428034
Category : Agricultural pests
Languages : en
Pages : 0

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Book Description
Agricultural and forest pests lead to many plant diseases resulting in poor yield and productivity. Traditionally, chemical pesticides have been used to control these pests. However, the adverse health impacts of chemical pesticides have triggered parallel research in safe biological options. Nevertheless, biocontrol has come a long way ever since the commercialisation of the first Bacillus thuringiensis based biopesticide (sporeine) in the 1940s, however, still there are research gaps. New knowledge and practical experiences have been added over the last few decades. This book reviews research on biological control agents, including bacterial, fungal and viral biopesticides along with their advanced formulation options.

Author: David M. Robbins
Publisher: IWA Publishing
ISBN: 178040476X
Category : Science
Languages : en
Pages : 148

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Book Description
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.

Author: Dominic A. Vargas
Publisher: Nova Science Publishers
ISBN: 9781621003533
Category : Citric acid
Languages : en
Pages : 0

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Book Description
In this book, the authors present topical research in the study of the synthesis, properties and applications of citric acid. Some of the topics discussed include fungal and yeast production of citric acid; mitochondrial production and applications in food and pharmaceutical industries; synthesis of the CuO/CeO2 catalytic system by polymerisation with citric acid; citric acid as a useful tool in artificial enamel formation and regeneration; the impact of citrate on glycolysis in brain tumours and applications of citrus fruits and their extracts for detection of food poisoning caused by bacteria.

Author: Jim Keith
Publisher: Illuminet Press
ISBN: 9781881532217
Category : Political Science
Languages : en
Pages : 128

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Book Description
The era of chemical and biological megadeath is upon us, and the potential of deadly biowarfare attacks from governments, militant independent groups, and even individuals is far greater than it has been at any time in the past. At this time, more than twenty-five countries are developing, or have stockpiles of chemical and biological weapons, in many cases in sufficient quantities to wipe out the entire population of the world. So far the danger of chemical and biological aggression has been little acknowledged, and, at least in America, little prepared for by federal and local government. Most terrorist threats and attacks are not widely reported in the mainstream media. Although information about the proliferation of man-made diseases is carefully suppressed by governments and the media they will be covered in the pages of this book. Not only is America unprepared and ignorant of what is happening, but the people in government and scientific professions who do know, who should be warning the American public about the dangers of chemical and biological terrorism, are instead doing their utmost to hide this information from us; information that is vital for our survival.The information that is contained in the pages of this book will not be measured or calculated to reassure people that everything is fine, when reassurance is the exact opposite of what is needed at this time. It may even give you nightmares when you realise the real circumstance that we are in. The information in the pages that follow will be the truth about the biowarfare threat to America.