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SUMMARY:Contr. talk - Towards Correlative X-Ray Tomographic Imaging Of Mem
 branes For Improving Food Processing
DTSTART;VALUE=DATE-TIME:20210610T074000Z
DTEND;VALUE=DATE-TIME:20210610T080000Z
DTSTAMP;VALUE=DATE-TIME:20260529T230410Z
UID:indico-contribution-1109@lindico453.srv.lu.se
DESCRIPTION:Speakers: Emanuel Larsson (Division of Solid Mechanics & LUNAR
 C\, Faculty of Engineering\, Lund University)\, Gregor Rudolph (Department
  of Chemical Engineering\, Lund University)\nIn recent years the need for 
 shifting our food system towards more plant-based proteins has become more
  and more apparent. The key reason for this shift is the economic and sust
 ainable recovery of plant proteins from valuable\, yet underutilized agric
 ultural waste streams for use in food\napplications. For highly selective 
 energy and resource-efficient separation processes\, membrane filtration c
 an play an important role in realizing this shift. \nThe first successful 
 membrane technology in the food industry was the recovery of proteins from
  whey\, which was until the 1970’s a major disposal challenge for the da
 iry industry. Using ultrafiltration (UF) membranes\, it was suddenly possi
 ble to concentrate and desalt whey proteins. Based on this success story\,
  membrane processes established themselves for the concentration and purif
 ication of many products in the food industry. However\, clogging of the m
 embrane during the filtration process\, so-called membrane fouling\, is st
 ill a major challenge.\nMembrane fouling alters the separation performance
  during operation. It may be caused by the deposition of suspended and dis
 solved substances on the membrane surface\, thereby forming a cake or gel 
 layer\, thus blocking the pore openings\, or causing adsorption on the sur
 face and on the pore walls. Membrane fouling can only be overcome by regul
 ar chemical cleaning\, which in turn leads to plant down time\, membrane a
 ging\, consumption of high-quality drinking water and the generation of hu
 ge amounts of waste water. \nThus\, a comprehensive understanding on membr
 ane fouling on a fundamental level is needed. One approach to generate in 
 depth knowledge\, is to examine changes due to fouling and cleaning of the
  inner structure of the membranes on a micrometer to nanometer scale using
  correlative X-ray tomographic imaging techniques\, including microtomogra
 phy\, full-field nanotomography\, holographic nanotomography and ptycho-to
 mography. This presentation will give an overview\nof the possibilities of
  X-ray tomographic imaging methods for membrane technology to improve the 
 operation of membrane processes in the food industry More specifically an 
 example of UF for the separation of rapeseed proteins from the press cake 
 of the rapeseed oil production will be presented\, including the need for 
 sample preparation by Focused Ion Beam (FIB).\n\nhttps://lindico453.srv.lu
 .se/event/159/contributions/1109/
LOCATION:Online on Zoom
URL:https://lindico453.srv.lu.se/event/159/contributions/1109/
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