Essays about: "arsenic species"

Showing result 1 - 5 of 12 essays containing the words arsenic species.

  1. 1. Spatial analysis of arsenic and fluoride mobilization in groundwater around Mount Meru, northern Tanzania

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Henriette Nishimwe; [2023]
    Keywords : Arsenic; Fluoride; Groundwater; Mobilization; Mount Meru; Geochemical and Spatial Modelling; Arsenic; Fluoride; Groundwater; Mobilization; Mount Meru; Geochemical and Spatial Modelling;

    Abstract : In Tanzania, approximately 76% of the drinking water supplies is dependent on groundwater sources. However, the groundwater in north Tanzania is susceptible to contamination by arsenic and fluoride. This study examines the spatial analysis of arsenic and fluoride mobilization in groundwater around Mount Meru, located in northern Tanzania. READ MORE

  3. 2. Long-term Effect of Metallic Iron Sorbents on Arsenic Mobility in an Anoxic Aquifer : An assessment based on long-term column experiments

    University essay from SLU/Dept. of Soil and Environment

    Author : Stéphanie Nyström; [2022]
    Keywords : Zero valent iron; ZVI; Remediation; Anoxic; Column tests; ICP-MS;

    Abstract : Zero valent iron (ZVI) sorbents have successfully remediated soils burdened with different groups of contaminants. When working to alleviate arsenic (As) contamination, the location-specific subsurface chemistry greatly affects the efficiency of the sorbents as it controls the speciation of As and the transformation of the ZVI, as well as the interaction between these (remediating mechanisms). READ MORE

  4. 3. Detection of metals and trace elements in rice in Matlab, Bangladesh: A descriptive study

    University essay from Uppsala universitet/Internationell mödra- och barnhälsovård (IMCH)

    Author : Shabana Azmy; [2020]
    Keywords : Toxic metals; essential elements; rice; Matlab; Bangladesh.;

    Abstract : Rice is the staple food for almost half of the global population, including Bangladesh. This may be problematic, as rice may be contaminated with toxic metals, like arsenic (As), cadmium (Cd), lead (Pb) due to industrialization, overuse of cultivating land, fertilizers and pesticides. READ MORE

  5. 4. Distribution and mobilization of heavy metals at an acid mine drainage-affected region, South China

    University essay from Linköpings universitet/Tema Miljöförändring

    Author : Chen Luo; [2020]
    Keywords : acid mine drainage; arsenic; cadmium; geochemical modeling; heavy metals; lead; principal component analysis;

    Abstract : Dabaoshan Mine Site (DMS) is the biggest polymetallic mine in South China. The Hengshi River receives acid mine drain (AMD) waste leaching from the tailings pond and run-off from the treatment plant which flows into the Wengjiang River, Beijiang River, before discharging into the Pearl River. READ MORE

  6. 5. Fate of Heavy Metals in Waste to Energy (WtE) Processes

    University essay from KTH/Skolan för kemivetenskap (CHE)

    Author : Ninus Chamoun; Viktor Kjellvertz; William Mahajan; Yuanchao Song; [2016]
    Keywords : Wastewater treatment; Removal of heavy metals; Precipitation; Condensate treatment; Modelling with PHREEQC and Medusa;

    Abstract : This study was made to increase the understanding of how heavy metals in the aqueous phase are removed at low initial concentrations in different pH and Eh values. The reaction that has been studied is mainly hydroxide precipitation and adsorption in a condensate treatment. READ MORE