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Showing result 1 - 5 of 21 essays matching the above criteria.

  1. 1. Synergies of nutrient fractions for fertilization in agriculture

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

    Author : Linda Adjei; [2022]
    Keywords : Phosphorus; Wastewater; Polonite; molybdenum blue spectrophotometry; Fertilizer; Sunflower; Plant growth;

    Abstract : A few countries are controlling the worlds phosphate reserves and this raw material is depleting at a faster rate. Most of the mined phosphate rock comes from Morocco and the Russia area which has unstable security. Studies shows that about 40% of potash export and 28% of nitrogen and phosphorus (P) fertilizer products comes from the Russia area. READ MORE

  3. 2. An Ion-Selective Electrode for Detection of Ammonium in Wastewater Treatment Plants

    University essay from KTH/Kemi

    Author : Josephine Berg; [2021]
    Keywords : jonselektiv elektrod; membran; ammonium; sensor; reningsverk; ion-selective electrode ISE ; membrane; ammonium; sensor; wastewater treatment plant WWTP ;

    Abstract : Att följa ammonium i reningsverk är avgörande för att förbättra reningsprocessen och kontrollera flödet av föroreningar ut till ekosystemet. Jonselektiva elektroder (ion-selective electrodes, ISEs) är en lovande teknik inom området, där polymermembran baserade på nonactin är de mest studerade membranen för ammoniumsensorer. READ MORE

  4. 3. 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

  5. 4. Implementation of Scheimpflug Lidar for Entomological Monitoring of Bark Beetles

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

    Author : Jonathan Peterson; [2020]
    Keywords : Scheimpflug Lidar; Lidar; Bark beetles; Forestry; Entomological monitoring; Physics and Astronomy;

    Abstract : Bark beetles are responsible for great damages to Swedish forestry every year. This project focuses on a method of entomological lidar called Scheimpflug lidar to detect and monitor bark beetles. Scheimpflug lidar uses old techniques from photography to achieve a deep field of focus to resolve objects over long distances. READ MORE

  6. 5. Deep Eutectic Solvents and Their Possible Application in Transdermal Drug Delivery

    University essay from Lunds universitet/Livsmedelsteknik och nutrition (master)

    Author : Sarah Lindblom; [2020]
    Keywords : Deep Eutectic Solvents; Pharmaceuticals; Transdermal drug delivery; Choline Chloride; Rheology; Formulation; BSA; Franz cell diffusion; Pharmaceutical technology; Läkemedelsteknologi; Technology and Engineering;

    Abstract : Deep eutectic solvents, DES, is a type of solvent made by mixing a quaternary ammonium salt with a hydrogen bond donor at the eutectic point of the system. Most common quaternary ammonium salt is Choline Chloride, ChCl. A specific DES, Choline:CAGE has shown promise in delivering insulin through the skin of mice. READ MORE