The effects of physicochemical wastewater treatment operations on forward osmosis
(2017) In Environmental Technology 38(17). p.2130-2142- Abstract
Raw municipal wastewater from a full-scale wastewater treatment plant was physicochemically pretreated in a large pilot-scale system comprising coagulation, flocculation, microsieve and microfiltration operated in various configurations. The produced microsieve filtrates and microfiltration permeates were then concentrated using forward osmosis (FO). Aquaporin InsideTM FO membranes were used for both the microsieve filtrate and microfiltration permeates, and Hydration Technologies Inc.–thin-film composite membranes for the microfiltration permeate using only NaCl as the draw solution. The FO performance was evaluated in terms of the water flux, water flux decline and solute rejections of biochemical oxygen demand, and total... (More)
Raw municipal wastewater from a full-scale wastewater treatment plant was physicochemically pretreated in a large pilot-scale system comprising coagulation, flocculation, microsieve and microfiltration operated in various configurations. The produced microsieve filtrates and microfiltration permeates were then concentrated using forward osmosis (FO). Aquaporin InsideTM FO membranes were used for both the microsieve filtrate and microfiltration permeates, and Hydration Technologies Inc.–thin-film composite membranes for the microfiltration permeate using only NaCl as the draw solution. The FO performance was evaluated in terms of the water flux, water flux decline and solute rejections of biochemical oxygen demand, and total and soluble phosphorus. The obtained results were compared with the results of FO after only mechanical pretreatment. The FO permeates satisfied the Swedish discharge demands for small and medium-sized wastewater treatment plants. The study demonstrates that physicochemical pretreatment can improve the FO water flux by up to 20%. In contrast, the solute rejection decreases significantly compared to the FO-treated wastewater with mechanical pretreatment.
(Less)
- author
- Hey, Tobias LU ; Bajraktari, Niada ; Vogel, Jörg ; Hélix Nielsen, Claus ; la Cour Jansen, Jes LU and Jönsson, Karin LU
- organization
- publishing date
- 2017-09-02
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Forward osmosis, microfiltration, microsieve, non-biological treatment, physicochemical pretreatment, wastewater treatment
- in
- Environmental Technology
- volume
- 38
- issue
- 17
- pages
- 2130 - 2142
- publisher
- Taylor & Francis
- external identifiers
-
- scopus:84992332845
- pmid:27776465
- wos:000406560200003
- ISSN
- 0959-3330
- DOI
- 10.1080/09593330.2016.1246616
- language
- English
- LU publication?
- yes
- id
- 80bba213-5cc6-4841-b70f-393d91a5c967
- date added to LUP
- 2016-11-09 07:14:28
- date last changed
- 2024-03-07 15:39:53
@article{80bba213-5cc6-4841-b70f-393d91a5c967,
abstract = {{<p>Raw municipal wastewater from a full-scale wastewater treatment plant was physicochemically pretreated in a large pilot-scale system comprising coagulation, flocculation, microsieve and microfiltration operated in various configurations. The produced microsieve filtrates and microfiltration permeates were then concentrated using forward osmosis (FO). Aquaporin Inside<sup>TM</sup> FO membranes were used for both the microsieve filtrate and microfiltration permeates, and Hydration Technologies Inc.–thin-film composite membranes for the microfiltration permeate using only NaCl as the draw solution. The FO performance was evaluated in terms of the water flux, water flux decline and solute rejections of biochemical oxygen demand, and total and soluble phosphorus. The obtained results were compared with the results of FO after only mechanical pretreatment. The FO permeates satisfied the Swedish discharge demands for small and medium-sized wastewater treatment plants. The study demonstrates that physicochemical pretreatment can improve the FO water flux by up to 20%. In contrast, the solute rejection decreases significantly compared to the FO-treated wastewater with mechanical pretreatment.</p>}},
author = {{Hey, Tobias and Bajraktari, Niada and Vogel, Jörg and Hélix Nielsen, Claus and la Cour Jansen, Jes and Jönsson, Karin}},
issn = {{0959-3330}},
keywords = {{Forward osmosis; microfiltration; microsieve; non-biological treatment; physicochemical pretreatment; wastewater treatment}},
language = {{eng}},
month = {{09}},
number = {{17}},
pages = {{2130--2142}},
publisher = {{Taylor & Francis}},
series = {{Environmental Technology}},
title = {{The effects of physicochemical wastewater treatment operations on forward osmosis}},
url = {{http://dx.doi.org/10.1080/09593330.2016.1246616}},
doi = {{10.1080/09593330.2016.1246616}},
volume = {{38}},
year = {{2017}},
}