Essays about: "nanofiltrering"

Showing result 1 - 5 of 6 essays containing the word nanofiltrering.

1. 1. Membrane filtration for the recovery of zinc chloride from wastewater from a recycling process for cellulose textiles

   University essay from Lunds universitet/Kemiteknik (CI)

   Author : Ebba Andersson; [2022]
   Keywords : textilåtervinning; membranfiltrering; mikrofiltrering; nanofiltrering; zinkklorid; kemiteknik; Technology and Engineering;

   Abstract : Textilkonsumtionen i världen idag är hög, varje år köpts och slängs textilier långt mer än vad världens resurser tillåter. I ett försök att hitta ett hållbart sätt att återanvända textilierna har institutionen för kemiteknik vid Lunds universitet påbörjat ett forskningsprojekt för att undersöka möjligheterna till att återanvända textilfibrerna från grunden; genom att bryta ner textilierna till fiber ska det gå att återanvända samma textilfiber till nya textilier i en ny åter-vinningsprocess. READ MORE

3. 2. Wastewater treatment with nanofiltration in pilot-scale

   University essay from Lunds universitet/Kemiteknik (CI)

   Author : Jane Quach; Safa al Basheer; [2018]
   Keywords : wastewater; nanofiltration; ultrafiltration; chemical precipitation; pilot-scale; chemical engineering; kemiteknik; Technology and Engineering;

   Abstract : During the spring semester 2018, an investigation about supplementary cleaning of the waste water at Dow Chemical site in Landskrona was done. Different water-based binders from acrylic monomers are produced by Dow and large amounts of water is used for such processes. READ MORE

4. 3. Nanofiltration of ultrafiltration permeate fom chemical wastewater

   University essay from Lunds universitet/Kemiteknik (CI)

   Author : Martin Gunnarsson; [2017]
   Keywords : total organic carbon; nanofiltration; wastewater; ultrafiltration; conductivity; chemical engineering; kemiteknik; Technology and Engineering;

   Abstract : The aim of this report was to investigate the possibility of further cleaning of the wastewater at Dow in Landskrona. Dow produces water based adhesives from acrylic monomers. The wastewater contains different metal ions, surfactants, residual monomers and polymers. READ MORE

5. 4. Evaluation of the Removal Efficiency of Per- and Polyfluoroalkyl Substances in Drinking Water using Nanofiltration Membranes, Active Carbon and Anion Exchange

   University essay from Uppsala universitet/Luft-, vatten- och landskapslära

   Author : Klara Lindegren; [2015]
   Keywords : PFASs; perfluoroalkyl substances; removal efficiency; NF; nanofiltration; membrane; GAC; granular activated carbon; AE; anion exchange; PFAS; perfluorerade alkylsubstanser; reningseffektivitet; NF; nanofiltrering; membran; GAC; granulärt aktivt kol; AE; jonbytarmassa;

   Abstract : Per- and polyfluoroalkyl substances (PFASs) is a group of man-made, highly persistent chemicals. Due to the specific surface-active attributes of these molecules, applications are numerous and feed an economically important industry. During the last decade, PFASs have been detected globally in the environment, living organisms and tap water. READ MORE

6. 5. Evaluation of the efficiency of treatment techniques in removing perfluoroalkyl substances from water

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Sandra Lundgren; [2014]
   Keywords : PFAS; removal efficiency; MIEX®; iron III chloride; Powdered activated carbon; nanofiltration membrane; dissolved organic carbon;

   Abstract : Perfluoroalkylated substances (PFASs) are a group of synthetic compounds that have gained growing attention due to their environmental persistence, toxicity and their potential to bioaccumulate. Even though PFASs are not occurring naturally in our environment, they are globally distributed and can be found ubiquitously in air, water, soil, wildlife as well as in humans. READ MORE