Sökning: "chlorinated aliphatic hydrocarbons"

Hittade 5 uppsatser innehållade orden chlorinated aliphatic hydrocarbons.

  1. 1. Framtagande av platsspecifik grundvattenmodell samt modellering av klorerade lösningsmedels spridning i grundvatten kring industritomt : – Utvärdering av nuvarande samt framtida föroreningssituation

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Luft-, vatten- och landskapslära

    Författare :Julia Inkapööl; [2017]
    Nyckelord :Förorenad mark; Grundvattenmodellering; Föroreningstransport; MODFLOW; RT3D; Sekventiell nedbrytning; Klorerade lösningsmedel;

    Sammanfattning : One of the Government's environmental quality objectives is to achieve a poison free environment, meaning that the presence of anthropogenic substances in the environment should not pose a threat to human health or biodiversity. Such a substance is chlorinated aliphatic hydrocarbons which have been used historically in dry cleaning and as degreasing agents within industrial processes. LÄS MER

  3. 2. Lösningsmedel, grundvattenkemi och geofysiska signaler - Ett relationsproblem i Kv. Färgaren

    Kandidat-uppsats, Lunds universitet/Miljövetenskaplig utbildning

    Författare :Johan Sandström; [2014]
    Nyckelord :resistivity; groundwater chemistry; förorenade områden Geophysics; induced polarization; redoxpotential; pH; Klorerade lösningsmedel; PCE; TCE; geofysik; inducerad polarisation; resistivitet; grundvatten; Earth and Environmental Sciences;

    Sammanfattning : This Bachelor thesis is assigned to interpret and visualize the degree of contamination and degradation of chlorinated aliphatic hydrocarbons (CAH) in relationship with groundwater chemistry and signals from geophysical surveys. The relationships between pollutant, chemistry data and geophysical surveys were tested through linear regression. LÄS MER

  4. 3. Biodegradation of Aliphatic Chlorinated Hydrocarbon (PCE, TCE and DCE) in Contaminated Soil.

    Magister-uppsats, Institutionen för tema

    Författare :Aloysius Tibui; [2006]
    Nyckelord :Aerobic biodegradation; Anaerobic biodegradation; Inorganic fertilizers.; Chlorinated compounds; Tetrachloroethene PCE ; Trichloroethene TCE ; Dichloroethene DCE ; Mico-organisms; Methane; basis mineral medium; Gas Chromatography GC ;

    Sammanfattning : Soil bottles and soil slurry experiments were conducted to investigate the effect of some additives on the aerobic and anaerobic biodegradation of chlorinated aliphatic hydrocarbons; tetrachloroethylene (PCE), trichloroethylene (TCE) and dichloroethylene (DCE) in a contaminated soil from Startvätten AB Linköping Sweden. For the aerobic degradation study the soil sample was divided into two groups, one was fertilised. LÄS MER

  5. 4. Provtagning av trädkärnor för att bedöma föroreningsgraden av klorerade lösningsmedel i grundvatten

    Uppsats för yrkesexamina på avancerad nivå, Institutionen för geovetenskaper

    Författare :Daniel Nordborg; [2006]
    Nyckelord :Chlorinated solvents; CAH; chlorinated aliphatic hydrocarbons; tetrachlorethylene; trichloroethylene; chloroform; trees; tree cores; phytoremediation; contamination; Helgö.;

    Sammanfattning : Chlorinated aliphatic hydrocarbons (CAH´s) were used widely within dry cleaning facilities and for metal degreasing until their toxicity was discovered. PCE is still used as dry cleaning liquid. Today CAH´s are found in soil environment at places where they have been used in the past. LÄS MER

  7. 5. Inventering av förorenad mark på LKAB's industriområden i Kiruna, Svappavaara och Malmberget

    Magister-uppsats, SLU/Div. of Soil Chemistry and Pedology

    Författare :Camilla Esberg; [2005]
    Nyckelord :MIFO; LKAB; förorenade områden; riskklassningar; oljegropar; järnmalmsgruva; gruvdrift;

    Sammanfattning : The county administration asked LKAB to make an inventory of possibly contaminated sites caused by their mining activity. The inventory should be performed according to the MIFO model, a method from SEPA which is used to assess a contaminated site. LÄS MER