Essays about: "Gas chromatography"

Showing result 36 - 40 of 105 essays containing the words Gas chromatography.

  1. 36. The presence of Liquid Crystal Monomers in house dust and public environments

    University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

    Author : Isabel Häggblom; Emma Overgaard; Elin Forsberg; Filip Berner-Branzell; [2020]
    Keywords : ;

    Abstract : Liquid crystal monomers (LCMs) are byproducts that can be expected in LCD screens and they have been found to be released into the environment due to breakage and usage of LCD-products. The presence of these substances in other pieces of technology is likely but unknown. READ MORE

  3. 37. Volatile fatty acid production and application as external carbon source for denitrification

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Cora Michelle Döhler; [2020]
    Keywords : VFAs; co-fermentation; primary sludge; food waste; denitrification; external carbon source; MBBR;

    Abstract : By rethinking wastewater treatment plants (WWTPs) as resource recovery facilities, it is possible to de- velop the next generation of WWTPs. Moreover, it allows to accomplish environmental goals, such as reducing the CO2 footprint, and comply with increasing effluent standards regarding the concentration of nitrogen in a more sustainable way. READ MORE

  4. 38. Implementation of the mille-feuille nanofilter paper in the virus removal filtration of IgY purified from chicken egg yolk

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Michelle Dahlman; [2020]
    Keywords : ;

    Abstract : The purpose of this thesis was to test the mille-feuille nanofilter paper for a virus removal filtration from a potential protein-based nutraceutical. Therefore, chicken IgY was purified from egg yolk, with PEG precipitation for crude fractionation followed by thiophilic adsorption chromatography. READ MORE

  5. 39. Feedstock Recovery From Municipal Food Waste

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Matilda Palmér; Anna Sandström; Sara Johansson; Josefin Eklund Wallin; [2020]
    Keywords : Feedstock Recovery; Food waste; Sludge; Anaerobic digestion; VFA;

    Abstract : Volatile Fatty Acids (VFAs) are a by-product when producing methane through anaerobic digestion (AD). Due to their many uses as building block chemicals, it is of interest to look into ways to optimize anaerobic digestion toward VFA production instead of methane generation. READ MORE

  6. 40. Development of a GC Method for the Quantification of Short Chain Carboxylic Acids in Aqueous Solution

    University essay from Linköpings universitet/Institutionen för fysik, kemi och biologi

    Author : Anton Åkervall; [2020]
    Keywords : DAI-GC-FID; Direct Aqueous Injection; Gas Chromatography; Flame Ionization Detector; SCFA; Short Chain Fatty Acids; Formic Acid; Acetic Acid; Lactic Acid; EGR; Exhaust Gas Recirculation; CAC; Charged Air Cooler; FFD; Fractional Factorial Design;

    Abstract : Petroleum powered vehicles emit volatile organic compounds (VOCs) through combustion that contributes to the pollution of the environment. A technique in the 1970s was developed to decrease these emissions, especially for nitrogen oxides (NOx) and sulphuric oxides (SOx) which is called exhaust gas recirculation (EGR). READ MORE