Back-pulsing as an energy-saving method in the microfiltration of milk
(2014) In International Dairy Journal 35(1). p.1-5- Abstract
- Extended shelf-life milk can be produced by a combination of microfiltration and pasteurisation. However, due to the need for high cross-flow velocity during microfiltration, the energy consumption is high. One way of decreasing the energy demand during microfiltration is to use back-pulsing for fouling control. Microfiltration was performed in constant flux mode on skim milk to measure the fouling rate. Different frequencies and durations of back-pulsing were investigated to determine the optimal conditions. The most promising conditions were used to evaluate the degree to which the cross-flow velocity could be decreased without significantly affecting the performance of the membrane. It was found that short pulses (0.2 s) at a frequency... (More)
- Extended shelf-life milk can be produced by a combination of microfiltration and pasteurisation. However, due to the need for high cross-flow velocity during microfiltration, the energy consumption is high. One way of decreasing the energy demand during microfiltration is to use back-pulsing for fouling control. Microfiltration was performed in constant flux mode on skim milk to measure the fouling rate. Different frequencies and durations of back-pulsing were investigated to determine the optimal conditions. The most promising conditions were used to evaluate the degree to which the cross-flow velocity could be decreased without significantly affecting the performance of the membrane. It was found that short pulses (0.2 s) at a frequency of 1 min-1 were most efficient, and the membrane performance was only slightly affected by reducing the cross-flow velocity from 5.8 m s-1 to 4.5 m s-1 with back-pulsing. This corresponds to a reduction in the energy requirement of 50%. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4139822
- author
- Arkell, Anders LU ; Vrgoc, Filip LU and Jönsson, Ann-Sofi LU
- organization
- publishing date
- 2014
- type
- Contribution to journal
- publication status
- published
- subject
- in
- International Dairy Journal
- volume
- 35
- issue
- 1
- pages
- 1 - 5
- publisher
- Elsevier
- external identifiers
-
- wos:000329106800001
- scopus:84887392953
- ISSN
- 0958-6946
- DOI
- 10.1016/j.idairyj.2013.10.006
- language
- English
- LU publication?
- yes
- id
- 7c4ba2a1-4788-409f-ada2-de9da39188cc (old id 4139822)
- alternative location
- http://www.sciencedirect.com/science/article/pii/S0958694613002550#
- date added to LUP
- 2016-04-01 14:15:32
- date last changed
- 2023-10-29 21:19:59
@article{7c4ba2a1-4788-409f-ada2-de9da39188cc,
abstract = {{Extended shelf-life milk can be produced by a combination of microfiltration and pasteurisation. However, due to the need for high cross-flow velocity during microfiltration, the energy consumption is high. One way of decreasing the energy demand during microfiltration is to use back-pulsing for fouling control. Microfiltration was performed in constant flux mode on skim milk to measure the fouling rate. Different frequencies and durations of back-pulsing were investigated to determine the optimal conditions. The most promising conditions were used to evaluate the degree to which the cross-flow velocity could be decreased without significantly affecting the performance of the membrane. It was found that short pulses (0.2 s) at a frequency of 1 min-1 were most efficient, and the membrane performance was only slightly affected by reducing the cross-flow velocity from 5.8 m s-1 to 4.5 m s-1 with back-pulsing. This corresponds to a reduction in the energy requirement of 50%.}},
author = {{Arkell, Anders and Vrgoc, Filip and Jönsson, Ann-Sofi}},
issn = {{0958-6946}},
language = {{eng}},
number = {{1}},
pages = {{1--5}},
publisher = {{Elsevier}},
series = {{International Dairy Journal}},
title = {{Back-pulsing as an energy-saving method in the microfiltration of milk}},
url = {{http://dx.doi.org/10.1016/j.idairyj.2013.10.006}},
doi = {{10.1016/j.idairyj.2013.10.006}},
volume = {{35}},
year = {{2014}},
}