Feasibility study of advanced nom-reduction by hollow fiber ultrafiltration and nanofiltration at a Swedish surface water treatment plant
(2016) In Water 8(4).- Abstract
Membrane technology, i.e., ultrafiltration and nanofiltration, is growing in popularity, as it is a space efficient alternative for surface water treatment. Two types of hollow fiber membranes were tested in a fully equipped and automated pilot at a Swedish water treatment plant. Raw water was treated by a nanofilter and by coagulation before an ultrafilter. Operation parameters recorded during these trials have been the basis for cost estimations and assessments of environmental impact, comparing the two membrane modules to the existing conventional treatment. The membranes required lower chemical consumption, but led to increased costs from membrane modules and a higher energy demand. Compared to the existing treatment (0.33... (More)
Membrane technology, i.e., ultrafiltration and nanofiltration, is growing in popularity, as it is a space efficient alternative for surface water treatment. Two types of hollow fiber membranes were tested in a fully equipped and automated pilot at a Swedish water treatment plant. Raw water was treated by a nanofilter and by coagulation before an ultrafilter. Operation parameters recorded during these trials have been the basis for cost estimations and assessments of environmental impact, comparing the two membrane modules to the existing conventional treatment. The membranes required lower chemical consumption, but led to increased costs from membrane modules and a higher energy demand. Compared to the existing treatment (0.33 €/m3), the operational costs were estimated to increase 6% for ultrafiltration and 30% for nanofiltration. Considering the low emissions from Nordic energy production, the membrane processes would lower the environmental impact, including factors such as climate and ecosystem health. Greenhouse gas emissions would decrease from 161 g CO2-eq/m3 of the existing process, to 127 g CO2-eq/m3 or 83 g CO2-eq/m3 for ultrafiltration and nanofiltration, respectively. Lower chemical consumption and less pollution from the sludge leaving the water treatment plant lead to lower impacts on the environment.
(Less)
- author
- Lidén, Angelica LU and Persson, Kenneth M. LU
- organization
- publishing date
- 2016
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Cost analysis, Environmental impact, Nanofiltration, Natural organic matter, Ultrafiltration
- in
- Water
- volume
- 8
- issue
- 4
- article number
- 150
- publisher
- MDPI AG
- external identifiers
-
- scopus:84965096545
- wos:000375157200041
- ISSN
- 2073-4441
- DOI
- 10.3390/w8040150
- language
- English
- LU publication?
- yes
- id
- cf44e783-afc1-4424-ad21-339659b22db8
- date added to LUP
- 2016-07-04 09:49:26
- date last changed
- 2024-09-06 18:54:35
@article{cf44e783-afc1-4424-ad21-339659b22db8,
abstract = {{<p>Membrane technology, i.e., ultrafiltration and nanofiltration, is growing in popularity, as it is a space efficient alternative for surface water treatment. Two types of hollow fiber membranes were tested in a fully equipped and automated pilot at a Swedish water treatment plant. Raw water was treated by a nanofilter and by coagulation before an ultrafilter. Operation parameters recorded during these trials have been the basis for cost estimations and assessments of environmental impact, comparing the two membrane modules to the existing conventional treatment. The membranes required lower chemical consumption, but led to increased costs from membrane modules and a higher energy demand. Compared to the existing treatment (0.33 €/m<sup>3</sup>), the operational costs were estimated to increase 6% for ultrafiltration and 30% for nanofiltration. Considering the low emissions from Nordic energy production, the membrane processes would lower the environmental impact, including factors such as climate and ecosystem health. Greenhouse gas emissions would decrease from 161 g CO<sub>2</sub>-eq/m<sup>3</sup> of the existing process, to 127 g CO<sub>2</sub>-eq/m<sup>3</sup> or 83 g CO<sub>2</sub>-eq/m<sup>3</sup> for ultrafiltration and nanofiltration, respectively. Lower chemical consumption and less pollution from the sludge leaving the water treatment plant lead to lower impacts on the environment.</p>}},
author = {{Lidén, Angelica and Persson, Kenneth M.}},
issn = {{2073-4441}},
keywords = {{Cost analysis; Environmental impact; Nanofiltration; Natural organic matter; Ultrafiltration}},
language = {{eng}},
number = {{4}},
publisher = {{MDPI AG}},
series = {{Water}},
title = {{Feasibility study of advanced nom-reduction by hollow fiber ultrafiltration and nanofiltration at a Swedish surface water treatment plant}},
url = {{http://dx.doi.org/10.3390/w8040150}},
doi = {{10.3390/w8040150}},
volume = {{8}},
year = {{2016}},
}