Essays about: "Ash"

Showing result 21 - 25 of 275 essays containing the word Ash.

  1. 21. Promoting Circular Economy By Partial Replacement Of Cement With SCMs : A Review On Wood Ash

    University essay from Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Author : Asal Salman; [2022]
    Keywords : Cement; Circular economy; Concrete industry; SCM; Wood ash;

    Abstract : The European Commission adopted the first action plan for the transition to a circular economy in 2015. As a result, the concrete industry’s goal is for all concrete produced in Sweden to be climate neutral by 2045. READ MORE

  3. 22. Trace element leaching from alum shale fines and red ash from Kvarntorp during a large column test

    University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

    Author : Helena Rydfjord; [2022]
    Keywords : Alum shale; Leachate; Trace elements; Kvarntorp;

    Abstract : Fuel shortage during the Second World War led to oil production in Kvarntorp, Kumla during 1942-1966 by pyrolyzing alum shale rich in pyrite, FeS2, and organic material such as kerogen. This production has led to a lot of waste laying deposited out in the open after the mining closed and has had negative environmental impact in the form of ongoing weathering and leaching of acidic water and leaching of trace elements into its surroundings. READ MORE

  4. 23. CLIMATE-SMART CONCRETE APPLIED ON A SLAB FRAME BRIDGE

    University essay from KTH/Betongbyggnad

    Author : Sabina Dal; Sandra Raheb Khalo; [2022]
    Keywords : ;

    Abstract : This study examines alternative actions that are applied to an existing structure in Stockholm in order to reduce the global warming effect, in the form of carbon dioxide emissions. The structure consists of a slab frame bridge with belonging piles in the foundation, of which the building material is reinforced concrete with two different concrete types, namely concrete type C35/45 and concrete type C50/60. READ MORE

  5. 24. Effect of ash on catalytic activity for passive regeneration of catalytic diesel particulate filter : Evaluation of ash deposition by laboratory ageing

    University essay from KTH/Kemiteknik

    Author : Gisela Engström; [2022]
    Keywords : Diesel Particulate Filter; Ash deposition; Laboratory Ageing; Catalytic Activity; Passive regeneration;

    Abstract : Askackumulering i dieselpartikelfilter är ett välkänt problem som resulterar i ett förhöjt mottryck och påverkad prestanda hos fordonet. Däremot ges sällan uppmärksamhet åt filtrets katalytiska aktivitet och hur det påverkas vid förekomst av avgasföroreningar. READ MORE

  6. 25. REMOVAL OF PFAS FROM WASTEWATER THROUGH ADSORPTION AND SORBENT INCINERATION

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

    Author : Aston Sandblad; [2022]
    Keywords : PFAS; Adsorption; Incineration;

    Abstract : Per- and polyfluoroalkyl substances, PFAS, are a manufactured group of chemicals that have been found to be toxic to humans and the environment. Exposure to PFAS may include birth defects for infants as well as an increased risk of cancer. READ MORE