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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 66 for “"Biomasses"”.
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Hydrothermal Carbonisation of Novel Biomasses
… lignin and protein. In this thesis, three novel biomasses, Australian saltbush, hemp and macroalgae, were subjected to HTC and the hydrochars analysed for fuel properties and biochemical composition. The breakdown of the key macromolecules was then described using kinetic modelling to build a …
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Biomasses for the obtainment of new functional polymer materials
… based on the use of raw materials derived from biomasses. Biomasses are a very versatile renewable energy source with low environmental impact and are less expensive than the resources deriving from petroleum. Furthermore, the use of biomasses leads to environmental advantages. This PhD work is …
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Integration of Extrusion and Clean Fractionation Processes as a Pretreatment Technology of Lignocellulosic Biomasses
… composition on the fractionation of pre-extruded biomasses were tested. Different proportions of methyl isobutyl ketone (MIBK), ethanol and water with sulfuric acid as a catalyst were evaluated. A central composite design was used for process optimization. Results showed high lignin and xylan …
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Lipidų ir fikobiliproteinų kiekiai gėlavandenių planktono melsvabakterių biomasėje, surinktoje vandens žydėjimų laikotarpiu /
… lipids and phycobilliproteins accumulated in the biomasses of freshwater cyanobacteria that were collected during the water bloom period and then to compare the results with the amounts of the same bioproducts in the commercial biomasses of Spirulina and Aphanizomenon cyanobacteria, which are used …
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Handling characteristics of coal/biomass mixes: measurements and establishing benchmarks.
… of coals (Russian and Dawmill) and two types of biomasses (cereal co products (CCP) and milled palm nuts (MPN)) that are being extensively co-fired (as a mix) in the UK coal power plants and are known to cause a wide range of handling issues. The key objectives of the project included: …
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Understanding the Role of Biomass and High Shear Bioreactor Parameters in Bioethanol Production
… and torque requirements of the selected biomasses.<br /> The second most expensive input in biomass conversion is enzyme loading. The effectiveness of pretreatment could be masked by favorable enzymatic hydrolysis conditions. The initial trials were conducted to select a suitable enzyme …
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Valorisation de la biomasse contaminée par des métaux lourds en hydrochar pour l’adsorption des micropolluants et du CO2
… et peu énergivores pour traiter ces biomasses contaminées. Dans cette optique, la carbonisation hydrothermale constitue un procédé de conversion thermochimique prometteur pour transformer une biomasse contaminée en un matériau fonctionnel. Les deux objectifs phares de cette thèse …
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Chemische Heißgasreinigung bei Biomassevergasungsprozessen
… The feedstock for biomass gasification covers biomasses such as wood, straw and further energy plants. The detrimental trace elements released during gasification of these biomasses, e.g. KCl, H2S and HCl, cause corrosion and harm downstream devices. Therefore, gas cleaning poses an especial …
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ANAEROBIC TREATMENT OF HIGH SALINE PHARMACEUTICAL WASTEWATER
… bioreactor (AnMBR), and different types of biomasses as seeding inoculants were studied to investigate an efficient and sustainable process for treatment of high saline pharmaceutical wastewater. A comprehensive study on system start-up, organic removal performance, biogas recovery, membrane …
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The Risk Of Pythium Aphanidermatum In Hydroponic Baby-Leaf Spinach Production
… crop durations were replaced with target harvest biomasses. The target harvest biomasses were then achieved without supplemental lighting. A further strategy examined within the fixed duration conditions was the use of a two pond system where crop cohorts older than half the total crop duration …
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Α-HYDROXY FATTY ACIDS AND BIOPOLYMERS: NEW FATES FOR LIPID-ENRICHED FOOD SCRAPS
Biomasses deriving from food scraps represent a growing global issue, as they are hard to recycle and to dispose of. In this work, a new method for the implementation of food-related biomasses was assessed, in order to attain products via environment-friendly chemical processes. Food scraps may be …
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Predicting the ecosystem effects of harvesting beach-cast kelp for biofuel
… and oligochaetes); with some of the highest biomasses reported globally for beaches. These fauna are valuable prey to shorebirds, as demonstrated by a strong positive relationship (R2 = 0.82) between wader abundances and the percentage cover of wrack on beaches. Inshore, drifting macroalgae …
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On the role of biomass on coastal morphodynamics in natural and urban Mediterranean beaches
… resilience. This thesis deals with the role that biomasses (mainly Posidonia oceanica and, in some cases, Arundo donax rests) have within three Mediterranean beaches differentiated from each other by more or less marked human impacts. On a beach with almost irrelevant anthropic impacts, the …
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Predator-prey dynamics under the influence of exogenous and endogenous regulation : a data-based modeling study on spring plankton with respect to climate change
… in early spring as soon as moderate algal biomasses developed. In Lake Constance, ciliates dominated the herbivorous zooplankton in spring. The start of ciliate net growth in spring was closely linked to that of edible algae, chlorophyll a and the vertical mixing intensity but independent …
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BIOACTIVE-RICH MUSHROOMS FOR FOOD REFORMULATION
… (FT-NIR) spectroscopy. Moreover, the mycelial biomasses were analyzed for protein, lipids, polyphenols, and β-glucan content to evaluate the quality obtained. Another SSF trial was set up to optimize growing conditions of P. ostreatus on apple pomace, considering the type of inoculum (I.e., …
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Evaluating the effects of rainbow smelt on native piscivores in freshwater systems with a special focus on walleye recruitment and larval bioenergetics
… bottleneck may exist at low zooplankton biomasses.
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Application of physicochemical and biological pretreatments to enhance volatile fatty acids production via Dark Fermentation from agri-food waste
… low-energy approach proved highly effective for biomasses with specific fiber profiles, with OP achieving the highest solubilization yield (sCOD 58.6%) under optimized conditions. These findings confirmed the feasibility of a biological pre-hydrolysis stage to enrich substrate quality and reduce …
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Studies of the foods and feeding ecology of wading birds.
… are combined to enable calculation of the total biomasses of the main prey taken by waders in the course of a year. These are compared with total minimum annual production of the prey. Future work, including a computer study based on these and extra data, is outlined.
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Effects of Light and Macroinvertebrate Consumers on Detrital Microbial Biofilms in Streams
… litter-associated algal, fungal and bacterial biomasses and production rates, as well as litter decomposition, over 49 days. Both experiments exhibited significant positive effects of light on algal productivity and interactions of <em>Macrobrachium </em>and <em>Pycnopsyche </em>presence with …
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PRODUCTION DES CLADOCERES DANS LES BASSINS DE LAGUNAGE: MODELISATION ET ANALYSE DE RENTABILITE DE LEUR VALORISATION
… des techniques utilisées pour estimer les biomasses de Daphnia pulex et des différents substrats utilisés. Les études de cinétiques et de stœchiométries des différents processus de conversion biochimique impliquant les cladocères, ainsi que l’étude de rentabilité de deux variantes de …
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