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Increasing flux by back-pulsing in the microfiltration of milk

Arkell, Anders LU ; Vrgoc, Filip LU ; Wallberg, Ola LU orcid and Jönsson, Ann-Sofi LU (2015) In International Dairy Journal 41. p.23-25
Abstract
Milk with extended shelf-life can be produced by microfiltration (MF) and pasteurisation in a cascade arrangement. In a previous study, we have shown that back-pulsing can be used to reduce the energy requirement in the MF of defatted milk. In this study, the influence of back-pulsing on MF was investigated at higher milk fluxes than in a prior study. The MF experiments were performed in constant-flux mode. The operational time until a certain pressure build-up was used as a measure of the performance. Fluxes between 350 and 500 L m−2 h−1 were investigated, with and without back-pulsing (frequencies ranging from 6 to 0.2 min−1). It was shown that the fouling rate was strongly dependent on the permeate flux; higher flux leading to a higher... (More)
Milk with extended shelf-life can be produced by microfiltration (MF) and pasteurisation in a cascade arrangement. In a previous study, we have shown that back-pulsing can be used to reduce the energy requirement in the MF of defatted milk. In this study, the influence of back-pulsing on MF was investigated at higher milk fluxes than in a prior study. The MF experiments were performed in constant-flux mode. The operational time until a certain pressure build-up was used as a measure of the performance. Fluxes between 350 and 500 L m−2 h−1 were investigated, with and without back-pulsing (frequencies ranging from 6 to 0.2 min−1). It was shown that the fouling rate was strongly dependent on the permeate flux; higher flux leading to a higher fouling rate. Improved MF performance was found using back-pulsing at a flux of 350 L m−2 h−1, while at higher fluxes, back-pulsing impaired the performance. (Less)
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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
International Dairy Journal
volume
41
pages
23 - 25
publisher
Elsevier
external identifiers
  • wos:000345507700005
  • scopus:84949118105
ISSN
0958-6946
DOI
10.1016/j.idairyj.2014.10.001
language
English
LU publication?
yes
id
44c1a1f7-5b47-4674-8752-72e33aedde04 (old id 4732667)
alternative location
http://www.sciencedirect.com/science/article/pii/S0958694614002040
date added to LUP
2016-04-01 14:35:21
date last changed
2023-10-15 20:02:46
@article{44c1a1f7-5b47-4674-8752-72e33aedde04,
  abstract     = {{Milk with extended shelf-life can be produced by microfiltration (MF) and pasteurisation in a cascade arrangement. In a previous study, we have shown that back-pulsing can be used to reduce the energy requirement in the MF of defatted milk. In this study, the influence of back-pulsing on MF was investigated at higher milk fluxes than in a prior study. The MF experiments were performed in constant-flux mode. The operational time until a certain pressure build-up was used as a measure of the performance. Fluxes between 350 and 500 L m−2 h−1 were investigated, with and without back-pulsing (frequencies ranging from 6 to 0.2 min−1). It was shown that the fouling rate was strongly dependent on the permeate flux; higher flux leading to a higher fouling rate. Improved MF performance was found using back-pulsing at a flux of 350 L m−2 h−1, while at higher fluxes, back-pulsing impaired the performance.}},
  author       = {{Arkell, Anders and Vrgoc, Filip and Wallberg, Ola and Jönsson, Ann-Sofi}},
  issn         = {{0958-6946}},
  language     = {{eng}},
  pages        = {{23--25}},
  publisher    = {{Elsevier}},
  series       = {{International Dairy Journal}},
  title        = {{Increasing flux by back-pulsing in the microfiltration of milk}},
  url          = {{http://dx.doi.org/10.1016/j.idairyj.2014.10.001}},
  doi          = {{10.1016/j.idairyj.2014.10.001}},
  volume       = {{41}},
  year         = {{2015}},
}