Search for dissertations about: "Felix Mtalo"

Showing result 1 - 5 of 6 swedish dissertations containing the words Felix Mtalo.

  2. 1. Spatial variability of geogenic contaminants in drinking water sources : Insights into hydrogeological controls, geospatial data for safe water supply and groundwater resource management

    Author : J. Ijumulana; Prosun Bhattacharya; Felix Mtalo; Steve W. Lyon; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Drinking water; geogenic contaminants; potentially toxic elements; fluoride; spatial analysis; spatial variability; Tanzania; Land and Water Resources Engineering; Mark- och vattenteknik;

    Abstract : The presence of geogenic contaminants in drinking water is a major health concern in many parts of the world. The interaction of groundwater with different rock types and sediments in the natural geochemical environment play an important role in controlling their mobility. READ MORE

  4. 2. Treatment of arsenic contaminated drinking water from the sources around the gold mining areas of Geita and Mara, Tanzania : Removal efficiency of locally available materials, bauxite, gypsum and magnesite

    Author : Regina Filemon Irunde; Prosun Bhattacharya; Felix Mtalo; Sudip Chakraborty; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Arsenic; bauxite; gypsum; magnesite; natural water; removal; Visual MINTEQ; kinetic reaction; isotherms; Freundlich; Langmuir; Arseniki; bauxite; gypsum; magnesite; maji ya asili; kuondolewa; Visual MINTEQ; misuguano ya kinetic; isotherm; Freundlich; Langmuir; Arsenik; bauxit; gips; magnesit; naturligt vatten; rening; Visual MINTEQ; kinetisk reaktion; isotermer; Freundlich; Langmuir; Mark- och vattenteknik; Land and Water Resources Engineering;

    Abstract : In recent years, high arsenic (As) levels of about 300 µg/L have been reported around the gold mining areas of Geita and Mara regions within the Lake Victoria basin (LVB) in Tanzania. During a sampling campaign at Geita and Mara, the groundwater and surface water samples revealed the presence of high As concentrations as well as Fe and sulfide. READ MORE

  5. 3. Groundwater defluoridation by natural minerals : Understanding the process of fluoride removal from drinking water sources in Tanzania

    Author : Vivian Kimambo; Prosun Bhattacharya; Felix Mtalo; Jyoti Prakash Maity; Jan Hoinkis; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fluoride removal; Groundwater; Natural minerals; Adsorption isotherms; Batch- and Column Experiments; Kinetics and thermodynamics; Drinking water quality; Sustainability; Kuondolewa kwa fluoride; Maji ya chini ya ardhi; Madini ya asili; isotherms za majaribio ya adsorbenti; Majaribio ya Kundi- na Safu; Kinetics na thermodynamics; ubora wa maji ya kunywa; Uendelevu; Fluoridavlägsnande; Grundvatten; Naturliga mineraler; Batch- och kolonnförsök; Adsorptionsisotermer; Kinetik och termodynamik; Dricksvattenkvalitet; Hållbarhet; Mark- och vattenteknik; Land and Water Resources Engineering;

    Abstract : Fluoride (F-) concentration in drinking water is one of the water quality parameters in countries with high concentrations in groundwater sources. Natural minerals have shown considerable effectiveness in F- removal. READ MORE

  6. 4. Environmental sanitation situation and solute transport in variably saturated soil in peri-urban Kampala

    Author : Robinah Kulabako; Roger Thunvik; Felix Mtalo; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Environmental Sanitation; Kampala; Modelling; Phosphorus transport; Shallow groundwater; Peri-urban; Vadose zone; Environmental engineering; Miljöteknik;

    Abstract : The environmental sanitation situation in Kampala’s peri-urban areas was reviewed and investigated through field studies, structured interviews with personnel from key institutions and administration of questionnaires to households in a selected peri-urban settlement (Bwaise III Parish).  In this settlement, specific field and laboratory measurements were undertaken so as to create a better understanding of the environmental sanitation situation, anthropogenic pollution loads and their transport and impact (with a focus on Phosphorus) in Kampala’s Peri-urban areas in pursuit of interventions for improving the environmental sanitation and protecting the shallow groundwater resource there. READ MORE

  7. 5. Hydrogeochemistry of arsenic, fluoride, and other trace elements in groundwater in northern Tanzania : Occurrence, distribution, and impacts on drinking water quality

    Author : Fanuel Josephat Ligate; Prosun Bhattacharya; Felix W Mtalo; Jyoti Prakash Maity; Joyanto Routh; KTH; []
    Keywords : Arsenic; Fluoride; Groundwater; Lake Victoria basin; Risk assessment; Sanya alluvial plain; Tanzania.; Aseniki; Bonde la Ziwa Victoria; Floridi; Maji yaliyopo ardhini; Tanzania; Tathmini ya hatari; Uwanda wa Aluvia ya Sanya.; Arsenik; Fluorid; Grundvatten; Viktoriasjön; Riskbedömning; Sanya alluvial slätt; Tanzania.; Mark- och vattenteknik; Land and Water Resources Engineering;

    Abstract : The occurrence of arsenic (As), fluoride (F-), and other trace elements (TEs) with potential toxicity in groundwater is a global environmental concern. According to the National water resource mapping database, about 76 % of the drinking water supply in Tanzania is abstracted from groundwater sources. READ MORE