Abstract：
:The economic feasibility of combining forward osmosis (FO), reverse osmosis (RO) and anaerobic membrane bioreactor (AnMBR) technologies for municipal wastewater treatment with energy and water production was analysed. FO was used to pre-concentrate the AnMBR influent, RO for draw solution regeneration and water production, and AnMBR for wastewater treatment and energy production. The minimum wastewater treatment cost was estimated at 0.81 € m-3, achieved when limiting the FO recovery to 50% in a closed-loop scheme. However, the cost increased to 1.01 and 1.27 € m-3 for FO recoveries of 80% and 90%, respectively. The fresh water production cost was estimated at 0.80 and 1.16 € m-3 for an open-loop scheme maximising water production and a closed-loop scheme, respectively. The low FO membrane fluxes were identified as a limiting factor and a sensitivity analysis revealed that FO membrane fluxes of 10 LMH would significantly improve the competitiveness of FO-RO + AnMBR technology.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Vinardell S,Astals S,Mata-Alvarez J,Dosta Jdoi
10.1016/j.biortech.2019.122395subject
Has Abstractpub_date
2020-02-01 00:00:00pages
122395eissn
0960-8524issn
1873-2976pii
S0960-8524(19)31625-6journal_volume
297pub_type
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