Sökning: "Removal of heavy metals"

Visar resultat 16 - 20 av 44 uppsatser innehållade orden Removal of heavy metals.

  1. 16. OPEN STORMWATER SYSTEMS FOR REDUCTION OF HEAVY METALS : AN EVALUATION OF COMMONLY USED DIMENSIONING METHODS

    Master-uppsats, Mittuniversitetet/Avdelningen för ekoteknik och hållbart byggande

    Författare :Johan Jönsson; [2018]
    Nyckelord :Stormwater; Heavy metals; Ponds; Filter strips; Wetlands;

    Sammanfattning : In Östersund there are a few stormwater ponds and oil separation units   connected to the stormwater network, but mostly there is no systems for   filtration of stormwater before it is released into a nearby lake which acts   as Östersund’s source of drinking water. In the Industrial area in Lugnvik there   is an oil separation unit connected to the stormwater network but no other   means of filtration. LÄS MER

  3. 17. Using plants to remediate wastewater produced from the cleaning process of blasted rock materials

    Master-uppsats, Stockholms universitet/Institutionen för ekologi, miljö och botanik

    Författare :Karin Nilsson; [2018]
    Nyckelord :blasted rock; tunneling; wetlands; phytoremediation; nitrogen;

    Sammanfattning : Water pollution is one of society’s most crucial issues which has a negative impact on water quality. The cleaning of blasted rock materials is a process which produces wastewater containing nitrogen and other pollutants such as heavy metals due to explosives residue from blasting. LÄS MER

  4. 18. Interaction Effect of Filler Material on Fungal Biomass Activity for Heavy Metal Biosorption in Stormwater

    Uppsats för yrkesexamina på grundnivå, Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Författare :Robert Peterson; [2018]
    Nyckelord :Heavy metals; Biosorption; Fungal biomass; Serial optimisation;

    Sammanfattning : In the wake of ever more occurring and evident consequences brought by climate change such as droughts and an increasing world population, a responsible use and handling of freshwater has never been as important as before. Stormwater is more than often not treated and simply released back in nature with any kind of pollution it has collected on its way, one of which being heavy metals. LÄS MER

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

    Kandidat-uppsats, KTH/Skolan för kemivetenskap (CHE)

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

    Sammanfattning : 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. LÄS MER

  7. 20. Heavy metal removal from sewage sludge by pyrolysis treatment

    Master-uppsats, Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Författare :Andreas Nordin; [2015]
    Nyckelord :Pyrolysis; sewage sludge; heavy metals; cadmium; lead; nickel; copper; chromium; mercury; zinc; phosphorus; energy balance; char; heating value; fertilizer;

    Sammanfattning : Sewage sludge is the product from wastewater treatment that mostly is considered as a waste material. However, it contains several nutrients, especially phosphorus, potassium and nitrogen which are excellent fertilizers. LÄS MER