Essays about: "metaller"

Showing result 1 - 5 of 94 essays containing the word metaller.

  1. 1. An evaluation of the treatment performance of a ten year old stormwater biofilter in Sweden

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Sara Eklund; [2020]
    Keywords : Biofilter; Water Quality; heavy Metals; Nutrients; Stormwater Treatment; Sweden; Tyresö; Biofilter; Vattenkvalitet; Tungmetaller; Näringsämnen; Dagvattenrening; Sverige; Tyresö;

    Abstract : Urban runoff may be contaminated with, for example, metals, nutrients and sediment. Generally, such runoff enters waterways and oceans without any type of treatment. Bioretention systems can be used to protect the aquatic environment since one of their main objectives is to remove pollutants from stormwater. READ MORE

  2. 2. The possibilities of recycling wash water at Vidinge

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Julia Mauritzson; [2020]
    Keywords : reuse; treatment; fresh-cut; water engineering; environmental engineering; avloppsteknik; vattenförsörjningsteknik; Technology and Engineering;

    Abstract : Water is a resource of importance and with drier weather around the world, including Swe-den, there is a risk of too low levels of water to satisfy for instance households, animals and industries in the future. Fresh-cut fruit and vegetable industries are water intense and almost all process water is used in the washing process. READ MORE

  3. 3. Degradation of model biomedical Mg alloys in aqueous media

    University essay from Lunds universitet/Materialteknik

    Author : Max Viklund; [2020]
    Keywords : Magnesium; alloys; bio-materials; implants; corrosion; isothermal calorimetry; Technology and Engineering; Medicine and Health Sciences;

    Abstract : This project investigates the influence of alloying elements, heat treatment and corrosion medium on the corrosion rates of three magnesium alloys Mg-5Zn, Mg0.27Ca, and Mg-0.27Ca-5Zn for use in bio-medical applications. READ MORE

  4. 4. Chemical Stabilization of Arsenic in Contaminated Soil under Low Redox Conditions

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Eva Smedborn Pausson; [2019]
    Keywords : ;

    Abstract : Remediation techniques for arsenic contaminated soil have previously focused mostly on the surface soil layers where aerobic conditions are prevalent. In this master thesis, chemical stabilization by adding zero-valent iron (Fe(0)) and calcium oxide (CaO) to an arsenic-contaminated soil under low redox conditions have been studied through up-flow percolation tests. READ MORE

  5. 5. Probiotikans effekt på avvänjningsdiarré hos smågrisar : kan utfodring med probiotika öka tillväxten

    University essay from SLU/Dept. of Anatomy, Physiology and Biochemistry

    Author : Johanna Lilja; [2019]
    Keywords : digesionskanal; mikroorganismer; mikrobiota; zink; tillväxt; hälsoeffekter;

    Abstract : Vid avvänjning utsätts smågrisar för flera stressfyllda moment som ofta resulterar i avvänjningsdiarré. Avvänjningen kan medföra negativa effekter på mukosan och mikrobiotan i digestionskanalen och därmed främja patogener som i sin tur ökar risken för avvänjningsdiarré. READ MORE