Essays about: "ferric oxides"

Found 4 essays containing the words ferric oxides.

  1. 1. Solubility of arsenic in Swedish contaminated soils : experiments and modelling

    University essay from SLU/Dept. of Soil and Environment

    Author : Ann-Sophie Heldele; [2016]
    Keywords : arsenic; leaching; pH influence; geochemical modelling; contamination;

    Abstract : Even though arsenic can be found everywhere in the environment, it is phytotoxic and hazardous to human and animal health. Especially arsenic leaching produces contamination of groundwater. READ MORE

  3. 2. Remediation of metal contaminated soils : evaluation of long-term effects of zero-valent iron amendments

    University essay from SLU/Dept. of Soil and Environment

    Author : Aleksandra Monika Marsz; [2014]
    Keywords : zero-valent iron; stabilization; trace elements; soil contamination; remediation;

    Abstract : The efficiency of contaminant stabilization in soil treated with zero-valent iron (ZVI) should be evaluated in long-term experiments, as stabilization techniques do not decrease total metal concentration. With time, properties of soil can change and iron hydroxides can crystalize, what can lead to a release of contaminants. READ MORE

  4. 3. Rostfärgat slam i dränagesystem vid vattenkraftsanläggningar : orsaker och åtgärder

    University essay from SLU/Dept. of Energy and Technology

    Author : Anders Hamrén; [2013]
    Keywords : vattenkraft; dammar; järnbakterier; flödesmätning; dränagesystem;

    Abstract : From embankment dams is something that has long been noticed and given rise to different questions. The most serious question is if the sludge is a result of inner erosion through the dam, and thus consists of material transported from the dam. READ MORE

  5. 4. Waste Water Treatment - A Case Study : Removal of Ni, Cu and Zn through precipitation and adsorption

    University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

    Author : Lovisa Karlsson; [2012]
    Keywords : nickel; copper; zinc; waste water; adsorption; precipitation; flocculation; extraction; peat; saw dust; bark compost; EDTA; ferric oxides; coprecipitation; occlusion; sorption; water treatment;

    Abstract : Waste water containing high concentrations of dissolved metals were delivered to the environmental company SAKAB. After standard treatment procedure, involving regulation of pH and addition of flocculation agents, the water still contained nickel concentrations of 26 mg/l. READ MORE