Essays about: "chromium"

Showing result 16 - 20 of 121 essays containing the word chromium.

  1. 16. Critical elements scavenged by secondary gypsum and HFO : Determined by sequential extraction combined with mineralogical studies

    University essay from Luleå tekniska universitet/Geovetenskap och miljöteknik

    Author : Emma Flodin; [2022]
    Keywords : Geochemistry; gypsum; HFO; adsorption; scavenged; critical elements; beryllium; Yxsjöberg; mine waste; Sequential extraction; XRD; SEM-EDS;

    Abstract : The demand for metals is great for the purpose of developing green technologies, and EU has listed 30 metals and minerals that are of critical importance for the maintenance and evolving of today’s society, so called critical materials. However, mining of raw materials generates mine waste which can have adverse effect on human health, ecosystems, and surrounding areas. READ MORE

  3. 17. Improvement of Pt-based catalyst supported on CeZrO2 used for the high-temperature water-gas shift reaction

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Milda Grikainyte; [2022]
    Keywords : Water-gas shift; catalyst; chemical engineering; Chemistry;

    Abstract : The iron-chromium (Fe/Cr) catalyst is used for high-temperature water-gas shift (HT WGS) reaction. A major concern using the Fe/Cr catalyst is that it contains hexavalent chromium (Cr+6) which is a potent carcinogen causing health and environmental issues. READ MORE

  4. 18. Synthesis and thermoelectric properties of Cr1-xMexN (Me = Mo, V)

    University essay from Linköpings universitet/Tunnfilmsfysik

    Author : Victor Rutberg; [2022]
    Keywords : Chromium nitride; thin films; thermoelectrics; physical vapour deposition; medium entropy alloy;

    Abstract : Among emerging materials systems for thermoelectric applications, the early transition-metal nitrides based on ScN and CrN show unexpectedly promising properties. These properties are determined by high Seebeck coefficient, low thermal conductivity, and high electrical conductivity. READ MORE

  5. 19. Sorption of Stormwater Pollutants for Five Material Mixtures: A batch Equlibrium Study

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Fredrik Rydholm; [2021]
    Keywords : Sorption; Swale; Metals; Phosphorus; Treatment; Batch equilibrium test; isoterms; Low-cost material;

    Abstract : Blue-green infrastructure have been more lucrative during the last 30 years, since urbanizationbrings more impervious surfaces that increases stormwater runoff volumes. Amongst thedifferent blue-green infrastructures there are e.g., constructed wetlands and swales. READ MORE

  6. 20. New Concept Development of a Blood Glucose-Balancing Functional Beverage

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

    Author : Fiona Ernesta; [2021]
    Keywords : nordic berries; blood-glucose; functional beverage; food engineering; Technology and Engineering;

    Abstract : Type 2 Diabetes Mellitus (T2DM) have known to be one of the most common degenerative diseases which highly correlate with lifestyle, including consumption habits. It cannot be denied that the availability and accessibility to high processed food, high in carbohydrates play an important role on increasing the risk of T2DM. READ MORE