Essays about: "Ferrihydrite"

Showing result 6 - 10 of 10 essays containing the word Ferrihydrite.

  1. 6. Purification of arsenic contaminated water using ferrihydrite with consideration to current circumstances in Burkina Faso

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Linn Ambjörnsson; Katti Ewald; Erika Johansson Kling; Anna Larsson; Selenius Marie; Svedberg Elin; [2016]
    Keywords : Arsenic; ferrihydrite; adsorption; drinking water; Burkina Faso;

    Abstract : Ferrihydrite in a suspension has been studied as a solution for purification of arsenic contaminated water. Many development countries, amongst them Burkina Faso, have arsenic in their groundwater and the current methods for purification are too expensive. READ MORE

  3. 7. Estimating soluble arsenic and phosphorus concentrations under Precambrian oceanic conditions

    University essay from Stockholms universitet/Institutionen för geologiska vetenskaper

    Author : Christoffer Hemmingsson; [2014]
    Keywords : Arsenic; Phosphorus; Co-precipitation; Precambrian; Oceanic P levels; Ferrihydrite synthesis; Distribution coefficient; Banded iron formation;

    Abstract : Original estimates of phosphorus (P) concentrations in the Precambrian oceans before 1.9 Ga gave a budget of ~10-25% of modern day levels. READ MORE

  4. 8. Arsenic Removal From Flue Gas Condensate with Ferrihydrite Precipitation.

    University essay from KTH/Mark- och vattenteknik

    Author : Louise Waldenström; [2014]
    Keywords : Waste wood; Pressure-treated wood; Flue gas condensate; Arsenic removal by precipitation; Ferrihydrite; TMT 15;

    Abstract : At the Idbäcken combined heat and power (CHP) plant waste wood is combusted. The flue gas from the combustion is condensed and heavy metals and other toxic species ends up in the condensate water. READ MORE

  5. 9. Effects of uranium mining on groundwater - Geochemical modeling of aqueous uranium speciation due to changing redox conditions.

    University essay from KTH/Mark- och vattenteknik

    Author : Adrian Gronowski; [2013]
    Keywords : Uranium mining; Uranium speciation; Uraninite; Uranium groundwater transport; Visual Minteq;

    Abstract : As a consequence of rising uranium prices an interest in Sweden’s U deposits has emerged. This raises the important question of the possible environmental impacts of U mining operations. One of the most significant and serious issues is the contamination of groundwater by U following mining activities. READ MORE

  6. 10. Decomposition of Norway spruce needles and fine roots : production of CO2 and DOC

    University essay from SLU/Dept. of Soil and Environment

    Author : Hanna Larsson; [2008]
    Keywords : decomposition; CO2; DOC; needles; fine roots; carbon;

    Abstract : The relative amounts of CO2 and DOC lost during decomposition of spruce needles and fine roots are poorly known. However, knowledge about this division is crucial for our understanding of carbon cycling in boreal forest ecosystems. READ MORE