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Since the beginning of industrialisation, the energy consumption in the world increased tremendously. As a consequence of the use of fossils fuels as main source of energy, the release of CO2 and other greenhouse gases (GHG) increased as well. Therefore, the concentration of CO2 increased from 280 ppm in the beginning of industrialisation to 400 ppm nowadays. This increase in atmospheric CO2 concentration leads to an increase of the atmospheric temperature. Considering the energetic consumption in the world, it is not realistic to imagine a near future without the use of fossil energies to limit the Global Warming. So, it is important to develop some methods to limit CO2 release. CCS (Carbon Capture and Storage) and DAC (Direct Air Capture) are the main technologies that aim to reduce the CO2 emissions. This thesis studies the DAC in two ways. At first, a review about the state of art about DAC is made. Then, the degradation of a particular amine-based solid sorbent, Lewatit® VP OC 1065 (Lanxess), is studied in a quartz tubular reactor regarding some main parameters : temperature in the reactor, duration of the experiment and composition of the feed gas of the reactor. The influence of these parameters is studied in order characterise the degradation of the sorbent. The main results of the thesis are the impact of oxygen on the degradation, greater than the impact of temperature, the measurement of pure thermal degradation below 150 °C and the weak effect of water on the degradation. Depuis le début de l'industrialisation, la consommation énergétique mondiale augmente de manière exponentielle. Les sources principales d'énergie étant les énergies fossiles, une quantité grandissante de CO2 et autres gaz à effet de serre se retrouve dans l'atmosphère. En particulier, depuis le début de l'industrialisation et jusqu'à aujourd'hui, la concentration en CO2 est passée de 280 ppm à 400 ppm. Cette augmentation de la concentration en CO2 dans l'atmosphère mène à une augmentation de la température moyenne mondiale. Et, considérant les consommations énergétiques du monde moderne, il n'est pas imaginable de se passer de ressources fossiles pour atténuer ce phénomène de réchauffement climatique. Il est donc important de développer des méthodes capables de capturer le CO2 afin de limiter les émissions de celui-ci. Les principales méthodes pour limiter ces émissions reposent sur la capture du CO2 et sur son stockage. Dans cette thèse, les méthodes se focalisant sur la capture du CO2 dans l'air ambiant sont considérées de deux manières. Premièrement, l'état de l'art des méthodes de capture du CO2 dans l'air ambiant est décrit. Ensuite, la dégradation d'un sorbent solide aminé spécifique, Lewatit® VP OC 1065 (Lanxess), fut étudiée. Ce sorbent était dégradé dans un réacteur tubulaire en quartz et sa dégradation étudiée selon certains paramètres principaux : la température dans le réacteur, la durée de l'expérience et la composition du mélange gazeux entrant dans le réacteur. Le but de cette étude était de caractériser la dégradation de ce sorbent. Les résultats principaux de la thèse concernent l'influence de l'oxygène, démontrée comme plus importante que celle de la température, les mesures de dégradation thermique pure en dessous de 150 °C et le faible effet de l'eau sur la dégradation.

CO2 --- DAC --- Amine-based sorbent --- Lewatit --- Degradation --- CCS --- Oxidative degradation --- Thermal degradation --- Ingénierie, informatique & technologie > Science des matériaux & ingénierie

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This book represents a guide to the academic, scientific and clinical applications of saliva as a diagnostic fluid. This volume is written by leaders in multiple fields and fulfills a demand for a broad understanding of saliva across a range of disciplines.

Medicine --- salivary biomarkers --- oral neoplasia --- periodontal disease/periodontitis --- smoking --- ethanol consumption --- real-time quantitative PCR --- enzyme-linked immune-sorbent assay --- immunohistochemistry --- bacteria --- HS-SPME-GC-MS --- MALDI-TOF MS --- silver nanoparticles --- VOCs --- obesity --- periodontitis --- cytokine --- inflammation --- saliva --- biomarkers --- oral cancer --- oral lichen planus --- psoriasis --- oral diseases --- oxidative stress --- antioxidants --- plaque psoriasis --- salivary glands --- cytokines --- nitrosative stress --- IgA --- alpha-amylase --- uric acid --- stress --- dental implants --- corrosion --- titanium --- metallic ions --- human papillomavirus --- oropharyngeal cancer --- meta-analysis --- salivary biomarkers --- oral neoplasia --- periodontal disease/periodontitis --- smoking --- ethanol consumption --- real-time quantitative PCR --- enzyme-linked immune-sorbent assay --- immunohistochemistry --- bacteria --- HS-SPME-GC-MS --- MALDI-TOF MS --- silver nanoparticles --- VOCs --- obesity --- periodontitis --- cytokine --- inflammation --- saliva --- biomarkers --- oral cancer --- oral lichen planus --- psoriasis --- oral diseases --- oxidative stress --- antioxidants --- plaque psoriasis --- salivary glands --- cytokines --- nitrosative stress --- IgA --- alpha-amylase --- uric acid --- stress --- dental implants --- corrosion --- titanium --- metallic ions --- human papillomavirus --- oropharyngeal cancer --- meta-analysis

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This book examines the state of the art of biosorption as an economical and environmentally friendly technique for pollutant removal in wastewater. Several articles are included that develop the applications of biosorption showing the high efficiency and versatility of this process, as well as showing recent advances in this field. Different modalities of biosorption are demonstrated from free biomass to immobilized biomass, as well as the combination of biomass with modern materials to form composites, emphasizing the significant versatility of this technique. In addition, different examples with biomasses of very different natures are also included and discussed, as are the factors that influence biosorption processes. Other contributions offer some examples of apparently useless materials that are reused and applied in the elimination of pollutants. Therefore, this book is an excellent complement for those researchers who work on biosorption as well as a starting point for those who want to begin research on this topic.

landfill --- leachate treatment --- POME --- removal efficiency --- mixing ratio --- biosorbent --- Ni2+ --- background electrolytes --- kinetic modeling --- biosorption --- biomass --- bioaccumulation --- biocomposite --- pollutants --- metals --- emerging organic contaminants --- dyes --- Spirulina --- alginate --- immobilization --- fixed-bed column --- Mxene–CS composite --- Cr(VI) contaminated aqueous solution --- Green Synthesis --- treatment of wastewater --- heavy metals --- citrus waste biomass --- bio-sorbent --- pre-treatment --- activated carbon --- batch adsorption --- fixed-bed adsorption column --- n/a --- Mxene-CS composite

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Water is indispensable to the functioning of most known life forms, and good water quality is essential to human health, social and economic development, and ecosystem functioning. Nonetheless, population growth has been leading to the degradation and depletion of fresh water resources. Under these circumstances, ensuring sufficient and safe water supplies for everyone is one of the Sustainable Development Goals (SDGs) set by the United Nations General Assembly in 2015 for the year 2030. For this goal to be achieved, the development and implementation of appropriate and efficient wastewater treatments that allow us to reduce water pollution is a major challenge.In view of the relevant contribution that polymers and polymeric materials may have in the conservation of the aquatic environment, namely by their application in wastewater treatment, original research and review papers on “Current trends and perspectives in the application of polymeric materials for wastewater treatment” were here brought together. For sure, this set of papers will be helpful and inspiring for readers interested in this topic.

Technology: general issues --- waste silk --- dopamine --- iron particles --- wastewater treatment --- activated carbon microsphere --- sodium lignosulfonate --- Cr(VI) --- adsorption --- modified polymeric resin --- t-butyl phosphate impregnation --- polymer based adsorbents --- dye adsorption --- response surface methodology --- nano-MgO --- structural modification --- permeability --- antifouling --- color rejection --- POME --- fluoroquinolones --- ultrasound radiation --- mesoporous carbon --- desirability function --- thermodynamics --- wastewater --- cost analysis --- ciprofloxacin --- Polystyrene nanocomposite --- modifications --- characterizations --- antibiotics --- emerging contaminants --- pharmaceuticals --- polymeric adsorbents --- magnetization --- silver nanoparticles --- microfiltration --- membranes --- biofouling --- sputtering --- magnetite --- co-precipitation method --- Rhodamine B --- sodium dodecyl sulfate --- selective adsorption --- dysprosium --- neodymium --- fabric adsorbent --- radiation --- graft polymerization --- molecular imprinting --- polymer --- sertraline --- cross-reactivity --- SSRI --- template --- sorbent --- n/a

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Water is indispensable to the functioning of most known life forms, and good water quality is essential to human health, social and economic development, and ecosystem functioning. Nonetheless, population growth has been leading to the degradation and depletion of fresh water resources. Under these circumstances, ensuring sufficient and safe water supplies for everyone is one of the Sustainable Development Goals (SDGs) set by the United Nations General Assembly in 2015 for the year 2030. For this goal to be achieved, the development and implementation of appropriate and efficient wastewater treatments that allow us to reduce water pollution is a major challenge.In view of the relevant contribution that polymers and polymeric materials may have in the conservation of the aquatic environment, namely by their application in wastewater treatment, original research and review papers on “Current trends and perspectives in the application of polymeric materials for wastewater treatment” were here brought together. For sure, this set of papers will be helpful and inspiring for readers interested in this topic.

waste silk --- dopamine --- iron particles --- wastewater treatment --- activated carbon microsphere --- sodium lignosulfonate --- Cr(VI) --- adsorption --- modified polymeric resin --- t-butyl phosphate impregnation --- polymer based adsorbents --- dye adsorption --- response surface methodology --- nano-MgO --- structural modification --- permeability --- antifouling --- color rejection --- POME --- fluoroquinolones --- ultrasound radiation --- mesoporous carbon --- desirability function --- thermodynamics --- wastewater --- cost analysis --- ciprofloxacin --- Polystyrene nanocomposite --- modifications --- characterizations --- antibiotics --- emerging contaminants --- pharmaceuticals --- polymeric adsorbents --- magnetization --- silver nanoparticles --- microfiltration --- membranes --- biofouling --- sputtering --- magnetite --- co-precipitation method --- Rhodamine B --- sodium dodecyl sulfate --- selective adsorption --- dysprosium --- neodymium --- fabric adsorbent --- radiation --- graft polymerization --- molecular imprinting --- polymer --- sertraline --- cross-reactivity --- SSRI --- template --- sorbent --- n/a