1. A breakthrough dynamic-osmotic membrane bioreactor/nanofiltration hybrid system for real municipal wastewater treatment and reuse.
- Author
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Cong Nguyen N, Thi Nguyen H, Cong Duong H, Chen SS, Quang Le H, Cong Duong C, Thuy Trang L, Chen CK, Dan Nguyen P, Thanh Bui X, Guo W, and Hao Ngo H
- Subjects
- Bioreactors, Osmosis, Wastewater, Membranes, Artificial, Water Purification
- Abstract
This study designed a Dynamic-Osmotic membrane bioreactor/nanofiltration (OsMBR/NF) system for municipal wastewater treatment and reuse. Results indicated that a continuously rotating FO module with 60 RPM in Dynamic-OsMBR system could enhance shear stress and reduce cake layer of foulants, leading to higher flux (50%) compared to Traditional-OsMBR during a 40-operation day. A negligible specific reverse salt flux (0.059 G/L) and a water flux of 2.86 LMH were recorded when a mixture of 0.1 M EDTA-2Na/0.1 M Na
2 CO3 /0.9 mM Triton114 functioned as draw solution (DS). It was found that the Dynamic-OsMBR/NF hybrid system could effectively remove pollutants (∼98% COD, ∼99% PO4 3- P, ∼93% NH4 + -N, > 99% suspended solids) from wastewater. In short, this developed system can be considered a breakthrough technology as it successfully minimizes membrane fouling by shear force, and achieves high water quality for reuse by two membrane- barriers., (Copyright © 2021 Elsevier Ltd. All rights reserved.)- Published
- 2021
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