Search for dissertations about: "heavy metal polluted soil"

Showing result 1 - 5 of 6 swedish dissertations containing the words heavy metal polluted soil.

  2. 1. Microbial remediation of heavy metal ion polluted soil and water

    Author : Torbjörn Håkansson; Bioteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; EDTA; metal; soil; remediation; Sulphate reducing bactera; biogas; water;

    Abstract : Contamination of soil and water by heavy metal ions (HMs) is a problem all over the world.The use of biological methods alone or in combination with other techniques for treatment of such polluted sites constitutes a major challenge. READ MORE

  4. 2. Development of a Low Cost Remediation Method for Heavy Metal Polluted Soil

    Author : Stalin Mkumbo; Gunno Renman; Ann-Margret Strömwall; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; autoclaved aerated concrete; decontamination; heavy metal; hyperaccumulator plants; sorbent; zeolite;

    Abstract : High concentrations of heavy metals in the soils have potential long-term environmental and health concerns because of their persistence and accumulation tendency in the environment and along the food chain. This study was aimed at studying the feasibility of heavy metals removal from the soil using plants naturally growing in the surroundings of selected polluted sites in Tanzania and soil application of the sorbent materials zeolite and autoclaved aerated concrete (AAC). READ MORE

  5. 3. Industrial metabolism : The emerging landscape of heavy metal immission in Sweden

    Author : Bo Bergbäck; Linköpings universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN;

    Abstract : Since the turn of this century, technological development has drastically increased the industrial consumption of toxic metals. Once dispersed in the environment, the metals cannot be degraded but will be accumulated in soil or sediment sinks. Thus, environmental effects of heavy metal pollution tend to be permanent. READ MORE

  6. 4. Hazard screening of contaminated sites : bioavailable fractions and biological in vitro tools

    Author : Daniel Ragnvaldsson; Mats Tysklind; Per Leffler; Lars Lövgren; Bengt-Erik Bengtsson; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Hazard screening; bioavailability; metal pollution; in vitro cytotoxicity; water extraction; CCA; arsenic genotoxicity; genotoxicity; Contaminated soil; Environmental chemistry; Miljökemi;

    Abstract : The environmental bioavailability of contaminants, rather than their total concentrations in the soil compartment play a decisive role for the risks associated with contaminated sites. Various soil constituents and abiotic conditions have strong influence on bioavailability, which may vary substantially between different locations. READ MORE

  7. 5. Heavy metal tolerance, uptake, accumulation, and translocation in Salix and its application in phytoremediation

    Author : Tommy Landberg; Maria Greger; Nicholas Dickinson; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; plant stress heavy metals Salix tolerance; växtfysiologi; Plant Physiology;

    Abstract : In the environment, heavy metals are major stressors for plants, and since plants are immobile, they cannot avoid the stress but must adapt. Therefore, plants may develop avoidance and tolerance mechanisms to reduce susceptibility to metal toxicity. READ MORE