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Showing result 1 - 5 of 12 essays matching the above criteria.

  1. 1. Analysis of Methanol Based Chlorine Dioxide Production : An analysis of sodium chlorate reduction efficiency and investigation of salt cake filter wash on an SVP-LITE® system

    University essay from Karlstads universitet

    Author : Emil Lundh; [2023]
    Keywords : ECF; SVP-LITE®; chlorine dioxide; bleaching; ECF; SVP-LITE®; Klordioxid; blekning;

    Abstract : This work aimed to determine how effective an SVP-LITE® chlorine dioxide plant at Vallviks Bruk was running. This was done by determining the chemical consumption per unit of chlorine dioxide produced. The calculations relied upon online instrumentation that was manually validated. READ MORE

  3. 2. Wet Spinning of Cellulose-Lignin Precursor for Carbon Fibers : Effect of Coagulation Bath Composition & Spin Finish

    University essay from Uppsala universitet/Tillämpad mekanik

    Author : Julia Sundmark; [2023]
    Keywords : Carbon fiber; Cold alkali; Cold NaOH; lignin; cellulose; wet spinning; Kolfiber; kallalkali; lignin; cellulosa; våtspinning;

    Abstract : Carbon fibers (CF) are a material with a composition of over 90% carbon, which has high mechanical properties and low density. This unique combination of properties makes it requirable in applications such as vehicles, aerospace, wind power, and space industries. Commercially made CF are made using the fossil raw material polyacrylonitrile (PAN). READ MORE

  4. 3. Characterization of a novel bacteriumoriginating from a biogas process

    University essay from SLU/Department of Molecular Sciences

    Author : Louise Welén; [2023]
    Keywords : biogas; ammonia-tolerance; mesophilic; characterization; bacterium;

    Abstract : An anaerobic bacterium, isolated from an enrichment culture originating from a biogas reactor operating at high ammonia conditions, was characterised via various tests. An analysis of the 16S rRNA gene confirmed that the closest relative was Desulfotomaculum halophilum with 92,5 % similarity. READ MORE

  5. 4. Vulnerability assessment of groundwater pollution in the vicinity of a landfill in Nigeria

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Melisa Marta; Lovisa Nordgren; [2021]
    Keywords : Olusosun landfill; Lagos; Nigeria; Groundwater quality assessment; Groundwater; Contamination; Deponin Olusosun; Lagos; Nigeria Grundvattenkvalitetsbedömning; Grundvatten; Förorening;

    Abstract : Malfunctioning landfills are a globally sprawled problem. The Olusosun landfill in Lagos, Nigeria is not an exception. It is located in the middle of the city, nearby groundwater resources used to supply drinking water for the inhabitants in Lagos. READ MORE

  6. 5. Olika oorganiska kvävekällors effekt på blåbärsplantors tillväxt

    University essay from SLU/Dept. of Biosystems and Technology (from 130101)

    Author : Ella Lynander; [2021]
    Keywords : kväve; ammonium; nitrat; saltstress; ledningstal; blåbär; vaccinium; tillväxt; nitrogen; ammonium; nitrate; salt stress; conductivity; blueberry; growth;

    Abstract : Blåbärsproduktion har ökat i Sverige under 2010-talet, och av de många olika arter av blåbär som finns är det främst Vaccinium corymbosum som odlas. Odlingen kräver näringstillförsel, där kvävet har en viktig roll att spela. READ MORE