Essays about: "Aktivt kol"

Showing result 31 - 35 of 51 essays containing the words Aktivt kol.

  1. 31. Evaluation of sustainability criteria for small-scale wastewater treatment facilities

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Edvard Nordenskjöld; [2017]
    Keywords : On-site sewage facilities; phosphorus; micropollutants; multi-criteria analysis; precipitation; adsorption; full-scale; wastewater treatment; Enskilda avlopp; fosfor; mikroföroreningar; multi-kriterie analys; utfällning; adsorption; fullskala; avloppsrening;

    Abstract : There are about 700,000 on-site sewage facilities (OSSFs) in Sweden, almost a quarter of which amount only to septic tanks for sludge collection and removal, with no form of post-treatment. All these OSSFs contribute about 10 % of the total anthropogenic phosphorus (P) load from Swedish coasts to the Baltic Sea. READ MORE

  3. 32. Evaluation of bark material and granulated active carbon for treatment of perfluoroalkyl substances (PFASs) in wastewater

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Oskar Skoglund; [2017]
    Keywords : PFAS; WWTP; bark; GAC; flow; particle size; adsorption; COD; TOT-N; TSS; SPE; GFF; precursors.;

    Abstract : Per- and polyfluoroalkyl substances (PFASs) are a group of artificial chemicals which have been used in a wide area of applications such as surface protection agents in cloths and different industrial applications. It has been found that PFASs are potentially toxic and are frequently found in the environment due to their persistent and mobile properties. READ MORE

  4. 33. Evaluation of a bark adsobent for removal of pharmaceuticals from wastewater

    University essay from

    Author : Johanna Krona; [2017]
    Keywords : wastewater treatment; pharmaceuticals; activated carbon; bark; adsorption; avloppsvattenrening; läkemedel; aktivt kol; bark; adsorption;

    Abstract : During and after medical treatment, pharmaceutical compounds as well as their metabolites and conjugates are excreted from the users through urine and feces. The pharmaceuticals end up in wastewater treatment plants, which are not designed to deal with this kind of organic micro-pollutant. READ MORE

  5. 34. Higher temperatures increase nutrient availability in the High Arctic, causing elevated competitive pressure and a decline in Papaver radicatum

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Hanna Modin; [2016]
    Keywords : Papaver radicatum; High Arctic; soil conditions; Zackenberg; Greenland; climate change; global warming; Arctic vegetation; Arctic plant; Arctic Poppy; active layer depth; soil moisture; competitive pressure; Earth and Environmental Sciences;

    Abstract : Linking changes in the vegetation cover with factors that can moderate the effects of climate change is central to our understanding of Arctic ecosystems and their susceptibility to change. The aim of this study has been to investigate the moderating effects of soil conditions. READ MORE

  6. 35. Integration of powdered activated carbon in tertiary disc filtration of wastewater

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Elias Thörnqvist; Philip Isgaard; [2016]
    Keywords : vattenförsörjningsteknik; water engineering; environmental engineering; flocculation; coagulation; PAC; disc filter; micropollutants; powdered activated carbon; avloppsteknik; Technology and Engineering;

    Abstract : This thesis investigates the feasibility of integrating Powdered Activated Carbon (PAC) in to chemical treatment in combination with disc filtration of tertiary wastewater. Jar and tube tests have been performed, where the suspension was filtered through a 10 μm disc filter from Hydrotech Veolia Water Technologies. READ MORE