Essays about: "stabilisation"

Showing result 16 - 20 of 69 essays containing the word stabilisation.

  1. 16. Comparison of mesophilic and thermophilic anaerobic sludge digestion at Hammarby Sjöstadsverk MBR pilot plant for wastewater treatment

    University essay from SLU/Department of Molecular Sciences

    Author : Jessica Sellin; [2021]
    Keywords : Anaerobic digestion; sludge; wastewater treatment; thermophilic; mesophilic; stress test;

    Abstract : Anaerobic digestion is a commonly used method for stabilisation of sewage sludge and production of biogas at municipal wastewater treatment plants (WWTPs). The hydraulic retention time for sludge in the digestion reactors is about 16 days at Henriksdal WWTP in Stockholm. READ MORE

  3. 17. Stabilisation of arsenic in contaminated soil using iron distributed by electricity

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

    Author : Kajsa Engström; [2021]
    Keywords : Chemical stabilisation; soil remediation; contaminated soil; in situ pilot scale; sacrificial iron;

    Abstract : In Boden, northern part of Sweden, there is a site called Solgårdarna which has been used for wood impregnation. The activities on the site have led to soil contamination with chrome (Cr), copper (Cu) and arsenic (As), where the arsenic contamination is the most problematic. READ MORE

  4. 18. What motivates countries’ decisions to contribute to peacekeeping? : The case of Sweden

    University essay from Linnéuniversitetet/Institutionen för samhällsstudier (SS)

    Author : Lovisa Sand; [2020]
    Keywords : Peacekeeping; MINUSMA; Sweden; decision-making; rational choice.;

    Abstract : Following the mid 1990s, a drop in Swedish contributions to UN led peacekeeping have been evident and EU and NATO led operations have taken preference. However, in 2013 Sweden invested in a substantial troop contribution to a UN led peacekeeping operation in Mali. READ MORE

  5. 19. Sustainability assessment of potential wastewater treatment techniques in Tupiza, Bolivia

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Johanna Burström; [2020]
    Keywords : MCA; wastewater treatment; sustainable sanitation; Bolivia; stabilisation ponds; anaerobic reactors; constructed wetland; alkaline treatment of sludge; ammonia treatment of sludge; MCA; avloppsrening; hållbara VA-lösningar; Bolivia; stabiliseringsdammar; anaerobiska reaktorer; anlagd våtmark; alkalin slambehandling; slambehandling med ammoniak; Análisis multicriterio; tratamiento de aguas residuales; saneamiento sostenible; Bolivia; estanques de estabilización de desechos; reactores anaeróbicos; humedales artificiales; tratamiento de lodo con cal; tratamiento de lodo con urea;

    Abstract : Aiming for sustainable sanitation systems can provide benefits among a vast range of Sustainable Development Goals. In this study the sustainability of potential options for renovating or upgrading thewastewater treatment plant in Tupiza, a rapidly growing city in theSouthern highlands of Bolivia, was evaluated. READ MORE

  6. 20. Stabilisation of Steel Structures by Diaphragm Action of Trapezoidal Sheeting

    University essay from KTH/Bro- och stålbyggnad

    Author : Ondrej Novotny; [2020]
    Keywords : Diaphragm action; Stressed skin design; Trapezoidal sheeting; Corrugated sheet; Shear panels;

    Abstract : The main idea behind stabilisation by diaphragm action is to create a deep beam thatcan resist horizontal loads acting on a structure. It is achieved by connecting the sheetingto the primary structure of the roof so that the edge beams resist the bending momentthrough normal stresses and the sheeting resists the shear force through shear stresses. READ MORE