Evaluation of direct membrane filtration and direct forward osmosis as concepts for compact and energy-positive municipal wastewater treatment
Hey, Tobias LU ; Bajraktari, Niada ; Davidsson, Åsa LU
; Vogel, Jörg
; Madsen, Henrik Tækker
; Hélix-Nielsen, Claus
; Jansen, Jes la Cour
LU
and Jönsson, Karin
LU
(2018)
In Environmental Technology
39(3).
p.264-276
- Abstract
Municipal wastewater treatment commonly involves mechanical, biological and chemical treatment steps to protect humans and the environment from adverse effects. Membrane technology has gained increasing attention as an alternative to conventional wastewater treatment due to increased urbanization. Among the available membrane technologies, microfiltration (MF) and forward osmosis (FO) have been selected for this study due to their specific characteristics, such as compactness and efficient removal of particles. In this study, two treatment concepts were evaluated with regard to their specific electricity, energy and area demands. Both concepts would fulfil the Swedish discharge demands for small- and medium-sized wastewater treatment... (More)
Municipal wastewater treatment commonly involves mechanical, biological and chemical treatment steps to protect humans and the environment from adverse effects. Membrane technology has gained increasing attention as an alternative to conventional wastewater treatment due to increased urbanization. Among the available membrane technologies, microfiltration (MF) and forward osmosis (FO) have been selected for this study due to their specific characteristics, such as compactness and efficient removal of particles. In this study, two treatment concepts were evaluated with regard to their specific electricity, energy and area demands. Both concepts would fulfil the Swedish discharge demands for small- and medium-sized wastewater treatment plants at full scale: (1) direct MF and (2) direct FO with seawater as the draw solution. The framework of this study is based on a combination of data obtained from bench- and pilot-scale experiments applying direct MF and FO, respectively. Additionally, available complementary data from a Swedish full-scale wastewater treatment plant and the literature were used to evaluate the concepts in depth. The results of this study indicate that both concepts are net positive with respect to electricity and energy, as more biogas can be produced compared to that using conventional wastewater treatment. Furthermore, the specific area demand is significantly reduced. This study demonstrates that municipal wastewater could be treated in a more energy- and area-efficient manner with techniques that are already commercially available and with future membrane technology.
(Less)
- author
- Hey, Tobias
LU
; Bajraktari, Niada
; Davidsson, Åsa
LU
; Vogel, Jörg
; Madsen, Henrik Tækker
; Hélix-Nielsen, Claus
; Jansen, Jes la Cour
LU
and Jönsson, Karin
LU
- organization
- publishing date
- 2018-02
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Biogas production, forward osmosis, membrane filtration, seawater, wastewater treatment
- in
- Environmental Technology
- volume
- 39
- issue
- 3
- pages
- 264 - 276
- publisher
- Taylor & Francis
- external identifiers
-
- pmid:28278103
- scopus:85015150954
- ISSN
- 0959-3330
- DOI
- 10.1080/09593330.2017.1298677
- language
- English
- LU publication?
- yes
- id
- caf75e58-1a19-45d8-8464-162efb937a9b
- date added to LUP
- 2017-03-29 12:25:04
- date last changed
- 2024-01-28 17:02:25
@article{caf75e58-1a19-45d8-8464-162efb937a9b,
abstract = {{<p>Municipal wastewater treatment commonly involves mechanical, biological and chemical treatment steps to protect humans and the environment from adverse effects. Membrane technology has gained increasing attention as an alternative to conventional wastewater treatment due to increased urbanization. Among the available membrane technologies, microfiltration (MF) and forward osmosis (FO) have been selected for this study due to their specific characteristics, such as compactness and efficient removal of particles. In this study, two treatment concepts were evaluated with regard to their specific electricity, energy and area demands. Both concepts would fulfil the Swedish discharge demands for small- and medium-sized wastewater treatment plants at full scale: (1) direct MF and (2) direct FO with seawater as the draw solution. The framework of this study is based on a combination of data obtained from bench- and pilot-scale experiments applying direct MF and FO, respectively. Additionally, available complementary data from a Swedish full-scale wastewater treatment plant and the literature were used to evaluate the concepts in depth. The results of this study indicate that both concepts are net positive with respect to electricity and energy, as more biogas can be produced compared to that using conventional wastewater treatment. Furthermore, the specific area demand is significantly reduced. This study demonstrates that municipal wastewater could be treated in a more energy- and area-efficient manner with techniques that are already commercially available and with future membrane technology.</p>}},
author = {{Hey, Tobias and Bajraktari, Niada and Davidsson, Åsa and Vogel, Jörg and Madsen, Henrik Tækker and Hélix-Nielsen, Claus and Jansen, Jes la Cour and Jönsson, Karin}},
issn = {{0959-3330}},
keywords = {{Biogas production; forward osmosis; membrane filtration; seawater; wastewater treatment}},
language = {{eng}},
number = {{3}},
pages = {{264--276}},
publisher = {{Taylor & Francis}},
series = {{Environmental Technology}},
title = {{Evaluation of direct membrane filtration and direct forward osmosis as concepts for compact and energy-positive municipal wastewater treatment}},
url = {{http://dx.doi.org/10.1080/09593330.2017.1298677}},
doi = {{10.1080/09593330.2017.1298677}},
volume = {{39}},
year = {{2018}},
}