Sökning: "supernatant"

Visar resultat 1 - 5 av 68 avhandlingar innehållade ordet supernatant.

1. 1. Performance and control of biofilm systems with partial nitritation and Anammox for supernatant treatment

   Författare :Beata Szatkowska; Elzbieta Plaza; Bengt Hultman; Peter Balmér; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; alkalinity; Anammox; conductivity; partial nitritation; pH; removal rate; supernatant; Environmental engineering; Miljöteknik;

   Sammanfattning : Separate treatment of supernatant with dewatering of digested sludge with application of partial nitritation/Anammox process is assessed to be a cost-effective way to remove about 10-15% of influent nitrogen and, thereby, facilitate possibilities to reach required effluent requirements from the plant. The combined partial nitritation/Anammox process can be performed in two separate reactors or in one-stage. LÄS MER

3. 2. Risk of nitrous oxide emissions and potential of bioaugmentation when treating digester supernatant via nitrification-denitrification

   Författare :Fredrik Stenström; Avdelningen för kemiteknik; []
   Nyckelord :Bioaugmentation; Digester supernatant; Inoculation; Nitrification-denitrification; Nitrifiers; Nitrous oxide emissions; Reject water; Bioaugmentation; Digester supernatant; Inoculation; Nitrification-denitrification; Nitrifiers; Nitrous oxide emissions; Reject water;

   Sammanfattning : This thesis examines two different impacts of sidestream treatment of digester supernatant via nitrification-denitrification in a sequenced batch reactor (SBR). One of the impacts is the detrimental formation of nitrous oxide, and the other is the positive boosting of nitrifiers to the mainstream process through bioaugmentation. LÄS MER

4. 3. Immune maturation and lymphocyte characteristics in relation to early gut bacteria exposure

   Författare :Sophia Björkander; Eva Sverremark Ekström; Hanne Frøkiær; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Allergy; cell-free supernatant; chemokines; colonization; cytokines; FOXP3; immune-maturation; lactobacilli; lymphocytes; NK-cells; Staphylococcus aureus; unconventional T-cells; molekylär biovetenskap; Molecular Bioscience;

   Sammanfattning : At birth, the immune system is immature and the gut microbiota influences immune maturation. Staphylococcus aureus (S. aureus) and lactobacilli are part of the neonatal gut microbiota and have seemingly opposite effects on the immune system. S. LÄS MER

5. 4. Nutritional and physicochemical characterisation of dietary fibre in wheat fractions

   Författare :Lina Haskå; Avdelningen för livsmedel och läkemedel; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; dietary fibre; fructan; arabinoxylan; wheat; distillers grains; short-chain fatty acids; microbiota;

   Sammanfattning : Dietary fibre is fermented in the colon to short-chain fatty acids (SCFAs), of which especially butyric and propionic acid may have health-promoting effects. One source of dietary fibre may be by-products from wheat, which are currently used as animal feed. LÄS MER

7. 5. Bioprocess monitoring of mammalian cell cultures using modern sensors

   Författare :Karl Kreij; Fredrik Winquist; Linköpings universitet; []
   Nyckelord :;

   Sammanfattning : The need for better monitoring and control of mammalian cell cultures and the quality and safety control of products obtained from these processes is still high. In an attempt to enable better monitoring of the process and the glycosylation pattern of typical mammalian cell cultures two modem sensor methods were used on a chinese hamster ovary (CHO) cell culture producing the glycoprotein macrophage colony stimulating factor (M-CSF). LÄS MER