Essays about: "sludge ash"

Showing result 1 - 5 of 14 essays containing the words sludge ash.

  1. 1. Thermal degradation of PFAS in solid matter

    University essay from KTH/Kemi

    Author : Tuqa Al-Badri; [2024]
    Keywords : PFAS; PFOS; PFOA; thermal degradation; sewage sludge; PFAS; PFOS; PFOA; termisk nedbrytning; avloppsslam;

    Abstract : Per- och Polyfluorerade alkylsubstanser (PFAS) är syntetiskt framställda organiska föreningar som har använts i stor utsträckning i konsument- och industriprodukter. PFAS-substanser besitter attraktiva egenskaper såsom resistans mot väta, fett, fläckar och är dessutom värmetåliga. READ MORE

  3. 2. Towards Water Resource Recovery Facilities : Environmentally Extended Techno-Economic Assessment of Emerging Sewage Sludge Management Technologies in Sweden

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Harry Tibbetts; [2023]
    Keywords : Circular Economy; Waste Valorisation; Systems Analysis; LCA; MFA; EFA; TEA; Hydrothermal Carbonisation; Cirkulär ekonomi; Waste Valorisation; Systems Analysis; LCA; MFA; EFA; TEA; Hydrotermal Carbonization;

    Abstract : Municipal sewage sludge (MSS) management varies widely between countries and legislative regimes. Within the European directive for sewage treatment France applies over half of MSS to arable land, while The Netherlands has banned the practice (Kelessidis et al, 2012). READ MORE

  4. 3. Continuous leaching of phosphorus from sewage sludge ash

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Sofie Göransson; [2022]
    Keywords : Ash leaching; Continuous stirred tank reactor; CSTR; Phosphorus recovery; Sewage sludge ash;

    Abstract : The global demand for food is increasing. Different nutrients are used to increase growth in agriculture and are thus essential for the world ́s food supply. An important and common nutrient is phosphorus. It can be mined, in the form of phosphate, from phosphate rock. READ MORE

  5. 4. Phasing out peat from a co-fired 50 MWth circulating fluidized bed boiler : A theoretical sulfation potential study

    University essay from Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Author : Axel Bergstrand; [2022]
    Keywords : Peat; corrosion; fuel mixture; CFB; circulating fluidized bed; S; alkali chlorides; Sulfur; additives; combustion; fuel design; alkali related corrosion;

    Abstract : The chemical company Perstorp AB has a 50 MWth circulating fluidized bed to supply the production plant with process steam. The fuel mixture used shows a large variation with about 20 different fuel fractions that can be divided into the categories, residue wood chips, sludge, forest fuel, animal waste, industrial residues, and peat. READ MORE

  6. 5. Closure of Lilla Bredsjön Tailings Dam : an Evaluation of the Long-Term Dam Safety Measures

    University essay from KTH/Vattendragsteknik

    Author : Jenny Bramsäter; [2017]
    Keywords : tailings dams; seepage; pore pressure; slope stability; slip surfaces; long-term stability;

    Abstract : The mining industry contributes to enormous amounts of waste all over the world, which places high demands on tailings dams. In Sweden, there are strict regulations regarding the management and treatment of tailings dams, but some dams that were built before these regulations existed still pose a threat to the environment. READ MORE