Sökning: "saturated porous media"

Hittade 4 uppsatser innehållade orden saturated porous media.

  1. 1. Fate and Transport of Nano-TiO2 in Saturated Porous Media: Effect of pH, Ionic Strength and Flow Rate

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Tsegay Mengestab; [2015]
    Nyckelord :Nanoparticles; TiO2; saturated porous media; transport; DLVO theory;

    Sammanfattning : Titanium dioxide nanoparticles are widely used in a variety of products, such as pigments, paints, paper, plastics, cosmetics, nano-fibers, food coloring and photovoltaic cells, and the industry is growing at anexponential rate. It is believed that by 2025, 2.5 million tons of nano-TiO2 will be manufactured annually. LÄS MER

  3. 2. Development of Light Transmission Techniques for Quantification of CO2 Trapping in Porous Media

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Jonathan Udén; [2015]
    Nyckelord :Light transmission; CO2 storage; modelling; model; hydrogeology; Ljusgenomsläpp; koldioxidlagring; modellering; modell; hydrogeologi;

    Sammanfattning : Light transmission can be used to measure the amounts of certain constituents within a system by analyzing the amount of light they have absorbed. The aim of this study was to improve methods for light transmission measurements in two phase systems. LÄS MER

  4. 3. Mobilization and transport of different types of carbon-based engineered and natural  nanoparticles through saturated porous media

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Maryeh Hedayati; [2014]
    Nyckelord :Nanoparticle; MWCNT; C60; Transport and mobilization; DLVO theory; Ionic strength; Input concentration; Clean-bed filtration theory; Column test;

    Sammanfattning : Carbon –based engineered nanoparticles have been widely used due to their small size and uniquephysical and chemical properties. They can dissolve in water, transport through soil and reach drinkingwater resources. LÄS MER

  5. 4. Transport of Multi-Walled Carbon Nanotubes in Saturated Porous Media

    Master-uppsats, Uppsala universitet/Luft-, vatten- och landskapslära

    Författare :Bao Dixiao; [2012]
    Nyckelord :MWCNTs; solution chemistry; DLVO; straining; saturated porous media;

    Sammanfattning : Carbon nanotubes (CNTs) have been one of the most studied nanoparticles and incorporated into various consumer products. It has been reported that CNTs can enter groundwater systems by accidental or intentional release into the subsurface. LÄS MER