Sökning: "uv disinfection"

Visar resultat 1 - 5 av 16 uppsatser innehållade orden uv disinfection.

1. 1. Sustainable water treatment processes : Scenarios for a better environment in Håbo municipality

   Kandidat-uppsats, Uppsala universitet/Institutionen för kemi - Ångström; Uppsala universitet/Institutionen för kemi - BMC

   Författare :Oskar Trozell; Daniel Wiman; Elis Wiggins; Elin Stigenberg; Alva Bergström; Emilia Andersson; [2021]
   Nyckelord :Drinking water treatment; Water treatment; Drinking water; Sustainable drinking water; Sustainable water treatment; Filtration; Water disinfection; Chemical reduction; Water treatment; Ultrafiltration; Ozone; Active carbon filtration; Infiltration; UV-radiation; Environment affection; vattenteknik; membran; Reningsteknik; filtrering; vattenrening; desinfektion; vattenreningsverk; dricksvatten; ozonering; kolfilter;

   Sammanfattning : Clean drinking water is a vital part of our society and a basic human right. With an ever growing population and a decreasing quality of raw water, new methods need to be introduced to keep up with the demand for clean, biostable, and sustainable production of drinking water. LÄS MER

3. 2. Development of an absorption model for gas discharge lamp simulation

   Master-uppsats, Malmö universitet/Institutionen för materialvetenskap och tillämpad matematik (MTM)

   Författare :Oscar Vigstrand; [2021]
   Nyckelord :Discharge lamp; Plasma; UV radiation;

   Sammanfattning : Ultraviolet (UV) light has been used for disinfection purposes for over 100 years. Irradiation by UV light is a method to disinfect surfaces in order to prevent microbiological growth. At Tetra Pak this is of great importance as they are manufacturer of filling machines. LÄS MER

4. 3. The possibilities of recycling wash water at Vidinge

   Master-uppsats, Lunds universitet/Kemiteknik (CI)

   Författare :Julia Mauritzson; [2020]
   Nyckelord :reuse; treatment; fresh-cut; water engineering; environmental engineering; avloppsteknik; vattenförsörjningsteknik; Technology and Engineering;

   Sammanfattning : Water is a resource of importance and with drier weather around the world, including Swe-den, there is a risk of too low levels of water to satisfy for instance households, animals and industries in the future. Fresh-cut fruit and vegetable industries are water intense and almost all process water is used in the washing process. LÄS MER

5. 4. Microbial test organisms for sterilization processes in food industry

   Master-uppsats, Lunds universitet/Bioteknik; Lunds universitet/Teknisk mikrobiologi

   Författare :Yasmin Nabila; [2018]
   Nyckelord :Aseptic processing and packaging; validation; test organisms; Aspergillus brasiliensis; Bacillus atrophaeus; Bacillus subtilis; sterilization; disinfection; applied microbiology; teknisk mikrobiologi; Technology and Engineering; Agriculture and Food Sciences;

   Sammanfattning : The importance of sterilization processes has been a major topic in the food manufacturing industry since it preserves the quality and provides longer shelf-life by preventing microbiological recontamination of products. Aseptic packaging is an alternative technique to pack commercially sterile products into containers with a very low recontamination rate, thus, the entire production chain must be designed according to the aseptic condition, including the packaging material, the filling machines, and the surrounding area where the process takes place. LÄS MER

7. 5. Fractionation of NOM in water from the treatment process at Ringsjöverket

   Master-uppsats, Lunds universitet/Kemiteknik (CI)

   Författare :Stina Karlsson; [2018]
   Nyckelord :water engineering; environmental engineering; avloppsteknik; Technology and Engineering;

   Sammanfattning : During the last decades, increased concentrations of natural organic matter (NOM) and colour of surface waters have been reported from northern Europe and North America. Since surface waters are widely used for drinking water production this development has been problematic for drinking water producers. LÄS MER