Essays about: "treatment of plastic"

Showing result 21 - 25 of 90 essays containing the words treatment of plastic.

1. 21. Removal of per- and polyfluoroalkyl substances(PFAS) from contaminated leachate usingaeration foam fractionation

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Axel Krögerström; [2021]
   Keywords : PFAS; Foam Fractionation; Leachate; Removal Efficiency; Wastewater Treatment;

   Abstract : Leachate from landfills is contaminated in many ways and per- and polyfluoroalkyl substances (PFAS)-contamination is one of them. Recent studies have demonstrated the environmental and human concerns of PFAS. Therefore, the treatment of leachate is important. READ MORE

3. 22. Method to assess machinability of engineering steels using coated carbide tools

   University essay from Uppsala universitet/Tillämpad materialvetenskap

   Author : Petra Hedberg; [2021]
   Keywords : Machinability; tool wear; coated carbide; non-metallic inclusions; Ca-treated; steel; 42CrMo4;

   Abstract : In this master thesis, performed at Ovako Group R&D (Hofors) a new machining test method for ranking heats of calcium-treated steels, M-Steels, has been proposed.  A total of six different heats of 42CrMo4-M steel in the quenched-and-tempered (Q+T) condition were tested. READ MORE

4. 23. Characterization of microplastics in wastewater

   University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

   Author : Lina Sabienski; [2020]
   Keywords : ATR-FTIR spectroscopy; Microplastic; Plastic pollution; Visual characterization; Wastewater effluent; Wastewater treatment plant WWTP ;

   Abstract : This study aims to detect how many microplastics and what kind are released from the wastewater treatment plant (WWTP) Skebäck, in Örebro. The study was limited to the analysis of three filters with 50 μm mesh size and one filter with 300 μm mesh size. READ MORE

5. 24. Thermal Stability of Titanium and Niobium Stabilized Stainless Steel

   University essay from Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

   Author : Oskar Darselius Berg; [2020]
   Keywords : Technology and Engineering;

   Abstract : This master thesis examined the microstructure after heat treatments in stainless steel, two conventional stainless steel (304 and 316) and two novel high temperature stainless steel. These stainless steels are for the use in high temperature heat exchangers for extended temperature range. READ MORE

6. 25. Preparation of films and nonwoven composites from fungal microfibers grown in bread waste

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

   Author : Maximilian Köhnlein; [2020]
   Keywords : bread waste; chitin; chitosan; filamentous fungi; film; fungal cell wall; fungal microfibers; glucosamine; mycelia; N-acetyl-glucosamine; nonwoven; wet-laid;

   Abstract : Unsold bread makes up a signification fraction of waste occurring in Swedish supermarkets. This thesis seeks to address the problem of food waste, by cultivating filamentous fungi on bread waste and producing chitinous films and nonwovens from them. READ MORE