Essays about: "harmful effect of technology"
Showing result 1 - 5 of 57 essays containing the words harmful effect of technology.
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1. Impact of pre-treatments on the brightness stability of a conventional and near neutral pH ECF-light bleaching sequence
University essay from KTH/Fiber- och polymerteknologiAbstract : Syftet med denna studie är att undersöka inverkan av förbehandlingar på ljushetsstabiliteten av Northern Bleached Softwood Kraft (NBSK) som har blekts enligt (OO) (OP) D/Dn (PO) bleksekvensen. Effekten av förbehandling med xylanas (X), mild sur (A), DTPA (Q) samt ett kombinerad DTPA- & xylanassteg (Q+X) har studerats. READ MORE
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2. Production of natural pigments from A. platensis grown on wastewater from local treatment facility.
University essay from Lunds universitet/Teknisk mikrobiologi; Lunds universitet/BioteknikAbstract : Although microalgae have been considered for the biological treatment of wastewater since the 1950’s, their potential to efficiently remove pollutants from various streams remains largely untapped and is yet to be utilized at large scale. The production of algal biomass and extraction of high-value compounds has, however, become increasingly popular with large scale farms and biorefineries around the world producing many promising alternatives to petroleum-based products and processes. READ MORE
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3. Effect of Refining on Softwood Pulp with Addition of Eucalyptus for Greaseproof Paper Production : Vacuum Dewatering in Laboratory Scale
University essay from Karlstads universitet/Institutionen för ingenjörs- och kemivetenskaper (from 2013)Abstract : We are provided countless products from the forest industry and has been through many years. Paper, paper board, packaging materials and furniture to mention a few. A special type of paper used in food packaging for example, is greaseproof paper. READ MORE
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4. Research on the Hydrothermal Conversion of Xylose Catalysed by CO2-H2O into Furfural
University essay from KTH/Skolan för industriell teknik och management (ITM)Abstract : Agricultural waste treatment and carbon dioxide emissions from fossil fuel combustion have been critical challenges for sustainable development. This work is part of a study on converting straw into biofuels, which involves using xylose as the material, carbon dioxide (CO2) as the catalyst, and water (H2O) and Gamma-Valerolactone (GVL) as the solvent to produce furfural through hydrothermal conversion. READ MORE
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5. Waiting for the Magic Bus: Unravelling the Impact of Bus Design on Station Dwell Time : A Comprehensive Analysis and Case Study
University essay from KTH/TransportplaneringAbstract : With the continuous decrease in average speed in cities, public transport operators need to think of new ways to improve operation efficiency and shorten total trip durations. This thesis investigates how bus design aspects, like door configuration and engine type, can affect the station dwell time, in this case, service time per passenger. READ MORE