Sökning: "Aqua Regia"

Visar resultat 1 - 5 av 10 uppsatser innehållade orden Aqua Regia.

  1. 1. Purification of Engineered Graphite for Advanced Application

    Master-uppsats, KTH/Materialvetenskap

    Författare :Lingfeng Zhao; [2022]
    Nyckelord :Graphite; Purification; Acid washing; Biomass; Biochar;

    Sammanfattning : Graphite has important applications in several key industries, which has been listed as a “criticalraw material” considered to be supply-risk by European since 2020. Purification of engineered graphite is one of the essential processes for the manufacturing of high-quality graphite. LÄS MER

  3. 2. Remediation of an arsenic-contaminated anoxic aquifer in hjältevad with zerovalent iron : assessment and modelling of sorption strength and solubility of arsenic

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

    Författare :Kathrin Leicht; [2021]
    Nyckelord :arsenic remediation; zerovalent iron; anoxic aquifer;

    Sammanfattning : In-situ injection of zerovalent Iron (ZVI) particles to remediate contaminated groundwater is a widely applied approach. However, studies assessing the remediation and immobilisation mechanisms of Arsenic (As) under anoxic field conditions with zerovalent iron particles are lacking, especially for nanosized sulphidated ZVI (S-nZVI) and oxidic shell free ZVI (OSF-nZVI). LÄS MER

  4. 3. Surface Treatment of Photocatalyst Metal Supports for VOCs Abatement Applications

    Master-uppsats, KTH/Skolan för kemivetenskap (CHE)

    Författare :Don Chinungi; [2016]
    Nyckelord :;

    Sammanfattning : In this work, the preparation of photocatalysts’ metal support for applications in purification of industrial gas emissions has been studied. The supports normally used in literature are ceramics, but they are not suitable for industrial applications. LÄS MER

  5. 4. Prediction of plant available copper, zinc and phosphorus in arable soils : comparison of diffusive gradients in thin film (DGT) technique with soil extraction methods

    Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Soil and Environment

    Författare :Madeleine Andersson; [2016]
    Nyckelord :Diffusive gradients in thin film technique DGT ; Cu; Zn; P; HNO3; CaCl2; P-AL; nutrient availability;

    Sammanfattning : Nutrient deficiencies in crop production are today a worldwide problem. To maximize fertilizer efficiency and crop yields it is important to be able to assess the accurate amount of available nutrients in the soil (Mason et al., 2005). LÄS MER

  7. 5. Base cations in forest soils : A pilot project to evaluate different extraction methods

    Uppsats för yrkesexamina på avancerad nivå,

    Författare :Jonas Olofsson; [2016]
    Nyckelord :Acidification; whole tree harvest; stem harvest; forestry; base cations; extractions; Aqua Regia; BaCl2; NH4OAc; EDTA; comparison; calcium; magnesium; potassium; sodium; Försurning; baskatjoner; extraktioner; Aqua Regia; BaCl2; NH4OAc; EDTA; helträdsuttag; kalcium; magnesium; kalium; natrium;

    Sammanfattning : The acidification has been a known problem in Sweden for several decades. Sulphurous compounds, spread from the British Isles and the European continent led to a decrease in the pH-value of the rain that fell over Sweden. Since the acidification was discovered in the 1960s, active measures against the sulphurous deposition have been undertaken. LÄS MER