Avancerad sökning

Hittade 5 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Microalgae for Phosphorus Removal from Wastewater in a Nordic Climate

    Författare :Karin Larsdotter; Gunnel Dalhammar; Jörgen Hanaeus; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; assimilation; hydroponics; light; microalgae; nitrogen; phosphorus; plants; precipitation; wastewater treatment; Bioengineering; Bioteknik;

    Sammanfattning : As part of a research project aiming to develop and evaluate a hydroponic system for wastewater treatment in Sweden, extended nutrient removal by microalgae was tested. The hydroponic/microalgal wastewater treatment system was built in a greenhouse in order to improve growth conditions for plants and algae. LÄS MER

  3. 2. Developmentof an immunosensor for enumeration of Nitrobacter

    Författare :Björn Sandén; KTH; []
    Nyckelord :;

    Sammanfattning : Eutrophication is a result of increasing discharges ofnutrients and is the main cause of the deterioration of theaquatic ecosystems. Major sources of nitrogen in coastal watersare wastewater treatment plants. LÄS MER

  4. 3. Bioassays for the determination of nitrification inhibition

    Författare :Camilla Grunditz; KTH; []
    Nyckelord :;

    Sammanfattning : Requirements for nitrogen reduction in wastewater treatmentplants were introduced in Sweden in the early 1990’s. Thiswas a governmental move to reduce the nitrogen discharges tothe Baltic and Kattegatt in order to prevent eutrophication.The nitrification process in wastewater treatment plants isperformed by nitrifying bacteria. LÄS MER

  5. 4. Surface force studies of association phenomena at solid-liquid interfaces

    Författare :Andra Dedinaite; KTH; []
    Nyckelord :;

    Sammanfattning : The main topics of this thesis, association phenomena inbulk and at solid-liquid interfaces in polar and non-polarmedia, were studied by a range of methods. Direct forcemeasurements employing the interferometric surface forceapparatus (SFA) was the chief technique. LÄS MER

  7. 5. Transport of Heavy Metals in Soil Subjected to an Electric Field -A Study of the Transport of Copper in Bentonite Clay

    Författare :Klas Arnerdal; KTH; []
    Nyckelord :Electrokinetic soil remediation; bentonite; copper; adsorption; electromigration; electroosmosis; pH; potential;

    Sammanfattning : This licentiate thesis addressesphosphorus release from sewage sludge, which is the first stepin phosphorus recovery. The concept ofphosphorus recovery maybe seen as a part of sustainable sludge handling in that it isa means of recycling resources without supplying harmfulsubstances to humans or the environment. LÄS MER