Sökning: "Visual Minteq"

Visar resultat 6 - 10 av 18 uppsatser innehållade orden Visual Minteq.

  1. 6. Long-term application of digestate and biofuel ash to arable soil : effects on the solubility of Cd, Al and trace metals as evidenced by simulated scenarios

    Master-uppsats, SLU/Dept. of Soil and Environment

    Författare :Elias Bäckström; [2018]
    Nyckelord :cadmium; fertilizer; Visual MINTEQ;

    Sammanfattning : The importance of nutrient recycling could not be emphasized enough in to-day’s society. Reduction of waste as well as recycling of nutrients would be the result if ash and biogas digestate could be used as fertilizer. However, the solubility of Cd, Al and micronutrients might be affected in a different way than by standard fertilizers. LÄS MER

  3. 7. Investigation of the origin of salt in coastal aquifers and assessment of metals in the aquatic environment : River Drin and River Vjosa, Albania

    Master-uppsats, KTH/Vatten- och miljöteknik

    Författare :Maximilian von Bahr; Ida Gomez Bergström; [2018]
    Nyckelord :Albania; aquifers; bioavailability; Drin; groundwater; isotope analysis; metal speciation; river; saltwater intrusion; Vjosa;

    Sammanfattning : The preservation of freshwater aquifers is one important task of managing natural resources today. Intrusion of saltwater from the sea into the groundwater might occur in coastal-near areas and can affect the freshwater quality negatively. LÄS MER

  4. 8. Arseniks löslighet i grundvattenakviferen i Hjältevad : Utvärdering med geokemisk modellering

    Uppsats för yrkesexamina på avancerad nivå,

    Författare :Martina Fastlund; [2018]
    Nyckelord :arsenik; arsenit As[III]; arsenat As[V]; adsorption; ferrihydrit; kd-värden; laktester; mobilisering; oxiderande förhållanden; pH; redoxpotential; reducerande förhållanden;

    Sammanfattning : Excessive concentrations of arsenic in soil- and groundwater constitute a global issue. The spread of arsenic is due to both natural and anthropogenic effects in the environment. Historically, the anthropogenic emissions have originated from several different industrial sectors e.g. LÄS MER

  5. 9. Solubility of arsenic in Swedish contaminated soils : experiments and modelling

    Master-uppsats, SLU/Dept. of Soil and Environment

    Författare :Ann-Sophie Heldele; [2016]
    Nyckelord :arsenic; leaching; pH influence; geochemical modelling; contamination;

    Sammanfattning : Even though arsenic can be found everywhere in the environment, it is phytotoxic and hazardous to human and animal health. Especially arsenic leaching produces contamination of groundwater. LÄS MER

  7. 10. Geochemistry of arsenic and heavy metals in pyrite ash : speciation, solubility control mechanisms and geochemical modelling

    Master-uppsats, SLU/Dept. of Soil and Environment

    Författare :Gunilla Theorin; [2015]
    Nyckelord :soil contamination; leaching tests; extractions; EDTA; kinetics; surface complexation modelling;

    Sammanfattning : This thesis was part of a project at the Swedish Geotechnical Institute aiming at investigating the geochemistry of heavy metals and arsenic in pyrite ash. The spe-cific aims with this work were to extend the knowledge on solubility control mechanisms of metals in pyrite ash and how the sorption ability of the ash was dependent on content of iron (hydr)oxides. LÄS MER