Search for dissertations about: "Arsenic V"

Showing result 1 - 5 of 17 swedish dissertations containing the words Arsenic V.

  1. 1. Chitosan biopolymer as an adsorbent for drinking water treatment Investigation on Arsenic and Uranium

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Md Annaduzzaman; KTH.; [2015]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chitosan Biopolymer; Characterization; Biodegradable; Arsenic V ; Uranium VI ; Adsorption; Isotherm; Kinetic model  ; Chitosan; Biopolymer; Karakterisering; Bionedbrytbar; arsenik V ; uran VI ; Adsorption; Isoterm; Kinetisk modell; Mark- och vattenteknik; Land and Water Resources Engineering;

    Abstract : In many countries over the world (including Sweden), metal toxicity in freshwater resources causes a severe drinking water quality problem and poses a threat to the environment and human health. Among the different toxic metals in the water resources of Sweden, arsenic and uranium are the biggest threats to health. READ MORE

  2. 2. Nonmalignant health effects of arsenic exposure

    University dissertation from Linköping : Linköpings universitet

    Author : Mahfuzar Rahman; Linköpings universitet.; Linköpings universitet.; [1999]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; arsenic; case-control study; cross-sectional study; diabetes mellitus; drinking water; epidemiology; exposure; keratosis; public health. hypertension; risk factors; MEDICINE; MEDICIN;

    Abstract : This thesis comprises a series of studies concerning occupational and environmental exposure to arsenic and some novel chronic health effects of this element, namely diabetes mellitus and hypertension. Substantial prevalence of the well-known skin manifestations of arsenic ingestion was also found to occur as a result of environmental exposure through drinking water. READ MORE

  3. 3. Arsenic (V) adsorption on iron oxide implications for soil remedeation and water purification

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Ivan Carabante; Luleå tekniska universitet.; [2012]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical Technology; Kemisk teknologi;

    Abstract : Addition of iron oxide based adsorbents to arsenic contaminated soils has been proposed as a mean to reduce the mobility of arsenic in the soil. However, the conditions in the soil such as pH value, the presence of phosphate after addition of fertilizer to the soil or the presence of Zn (II) as a co-contaminant may affect the adsorption of arsenate on the iron oxide and may therefore have implications for the mobility of arsenic in the remediated soil. READ MORE

  4. 4. Water treatment using cryogel-based adsorbents - Targeting environmental pollutants at low concentrations

    University dissertation from Department of Biotechnology, Lund University

    Author : Linda Önnby; Lunds universitet.; Lund University.; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Adsorption; cryogels; nanoparticles; arsenic; cadmium; water treatment; composites;

    Abstract : Popular Abstract in Swedish Tillgången till rent vatten är avgörande för människans överlevnad, tillgång till vatten kan förbättra den allmänna hälsan och därmed också vår fortsatta existens på jorden. Naturkatastrofer eller mänsklig påverkan genom t.ex. READ MORE

  5. 5. Factors influencing the metabolism of inorganic arsenic in humans

    University dissertation from Stockholm : Karolinska Institutet, Institute of Enviromental Medicine

    Author : Anna-Lena Lindberg; Karolinska Institutet.; Karolinska Institutet.; [2007]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Arsenic; AS3MT; Gender differences; GSTO1; Metabolism; Methylation; MTHFR; Nutrition; Polymorphisms;

    Abstract : p>Inorganic arsenic (iAs), a naturally occurring drinking water contaminant, is a potent human carcinogen and toxicant. It is believed that in humans, as well as in most mammals, inorganic arsenic is biotransformed via reduction and methylation using one-carbon metabolism with S-adenosyl methionine (SAM) as methyl donor, and is excreted mainly in urine as dimethylarsinate (DMA) and methylarsonate (MA) as well as some unmethylated iAs (arsenate (As(V)) and arsenite (As(III)). READ MORE