Advanced

Increasing flux by back-pulsing in the microfiltration of milk

Arkell, Anders LU ; Vrgoc, Filip LU ; Wallberg, Ola LU 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)
Please use this url to cite or link to this publication:
author
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
2015-01-07 10:40:37
date last changed
2017-01-01 06:19:17
@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},
  volume       = {41},
  year         = {2015},
}