Sökning: "bioreactor"

Visar resultat 21 - 25 av 89 avhandlingar innehållade ordet bioreactor.

1. 21. Human embryonic stem cells for bone engineering applications

   Författare :Giuseppe Maria de Peppo; Göteborgs universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Human skeleton; bone; bone defects; bone regeneration; regenerative medicine; tissue engineering; biomaterials; scaffold; biocoral; titanium; osseointegration bioreactor; human stem cells; embryonic stem cells; mesenchymal stem cells; embryonic-derived progenitors; osteogenic differentiation; mineralization; immune response; in vitro; in vivo;

   Sammanfattning : The human skeleton represents the supporting structure of the organism and accounts for about 20 percent of the total body mass. Despite its intrinsic capacity to regenerate and self-repair, this ability is limited and repair therapies are needed in a large number of clinical cases. LÄS MER

3. 22. Pharmaceutical compounds; a new challenge for wastewater treatment plants

   Författare :Maja Dlugolecka; Elzbieta Plaza; Bengt Hultman; Nicklas Paxéus; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; activated sludge; biodegradation; granular activated carbon GAC ; membrane bioreactor MBR ; pharmaceutical compounds; wastewater; Water engineering; Vattenteknik;

   Sammanfattning : Analytical analyses conducted at the Himmerfjärden WWTP (285.000 PE connected) identified 70 pharmaceutical compounds belonging to different therapeutic classes. Such organic micropollutants at low detected concentration range of µg - ng l-1 did not affect the treatment processes at WWTP. LÄS MER

4. 23. Volatile Fatty Acids as a Key to Sustainability and Circularity in Polyhydroxyalkanoates Production

   Författare :Hoang Danh Vu; Dan Åkesson; Pau-Loke Show; Högskolan i Borås; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; bioplastics; food waste; polyhydroxyalkanoates; volatile fatty acids; immersed membrane bioreactor; acidogenic fermentation; Resource Recovery; Resursåtervinning;

   Sammanfattning : The negative consequences of plastic pollution on both environmental and socio-economic aspects have motivated the development of sustainable and renewable materials to replace the petroleum-based plastic. Polyhydroxyalkanoates (PHAs), which are bioplastics, having an outstanding biodegradability and rather comparable thermal and mechanical properties, are potential alternatives for the replacement of conventional plastics. LÄS MER

5. 24. Large-scale Bioreactor Phenomena and Characteristics; Effects on E.coli fed batch fermentations on 30m3 scale

   Författare :Gustav Silfversparre; KTH; []
   Nyckelord :Large-scale; E.coli; fed batch; concentration gradients; mixing;

   Sammanfattning : Due to economical and practical limitations the fluiddynamics and mass transport properties are less optimal inlarge-scale bioreactors compared to lab-scale bioreactors. Incombination with the microbial reaction rates this creates amuch more dynamic environment for cells cultivated inlarge-scale bioreactors compared to lab-scale bioreactors. LÄS MER

7. 25. Wastewater treatment from pharmaceutical substances with filamentous fungi

   Författare :Brigita Dalecka; Gunaratna Kuttuva Rajarao; Talis Juhna; Paul Van der Wielen; Lima Nelson; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Filamentous fungi; municipal wastewater; pharmaceutical substances; fungal fluidized bed pelleted bioreactor; nutrients; diclofenac; ketoprofen; Trametes versicolor; Aspergillus luchuensis; Filamentösa svampar; kommunalt avloppsvatten; läkemedelsrester; bioreaktor; näringsämnen; diklofenak; ketoprofen; Trametes versicolor; Aspergillus luchuensis; Mikroskopiskās sēnes; sadzīves notekūdeņi; farmaceitiskās vielas; mikroskopisko sēņu bioreaktors; diklofenaks; ketoprofens; Trametes versicolor; Aspergillus luchuensis; Bioteknologi; Biotechnology;

   Sammanfattning : The ever-increasing concern about the widespread occurrence of pharmaceutical substances in the aquatic environment has been recognized as an emerging environmental issue as it can cause undesirable effects on the ecosystem and human health. The current wastewater treatment methods are not designed to treat municipal wastewater from the contamination of various pharmaceutical substances. LÄS MER