A novel osmosis membrane bioreactor-membrane distillation hybrid system for wastewater treatment and reuse

Nguyen Cong Nguyen; Hau Thi Nguyen; Shiao-Shing Chen; Huu Hao Ngo; Wenshan Guo; Wen Hao Chan; Saikat Sinha Ray; Chi-Wang Li; Hung-Te Hsu

doi:10.1016/j.biortech.2016.02.102

A novel osmosis membrane bioreactor-membrane distillation hybrid system for wastewater treatment and reuse

Bioresour Technol. 2016 Jun:209:8-15. doi: 10.1016/j.biortech.2016.02.102. Epub 2016 Feb 27.

Authors

Nguyen Cong Nguyen¹, Hau Thi Nguyen¹, Shiao-Shing Chen², Huu Hao Ngo³, Wenshan Guo³, Wen Hao Chan⁴, Saikat Sinha Ray⁴, Chi-Wang Li⁵, Hung-Te Hsu⁶

Affiliations

¹ Institute of Environmental Engineering and Management, National Taipei University of Technology, No. 1, Sec. 3, Chung-Hsiao E. Rd, Taipei 106, Taiwan, ROC; Faculty of Environment and Natural Resources, Da Lat University, Viet Nam.
² Institute of Environmental Engineering and Management, National Taipei University of Technology, No. 1, Sec. 3, Chung-Hsiao E. Rd, Taipei 106, Taiwan, ROC. Electronic address: f10919@ntut.edu.tw.
³ School of Civil and Environmental Engineering, Faculty of Engineering and Information Technology, University of Technology Sydney, Broadway, NSW 2007, Australia.
⁴ Institute of Environmental Engineering and Management, National Taipei University of Technology, No. 1, Sec. 3, Chung-Hsiao E. Rd, Taipei 106, Taiwan, ROC.
⁵ Department of Water Resources and Environmental Engineering, TamKang University, 151 Yingzhuan Road, Tamsui District, New Taipei City 25137, Taiwan, ROC.
⁶ Department of Environmental Engineering, Chung Yuan Christian University, Chung Li 32023, Taiwan, ROC.

PMID: 26946435
DOI: 10.1016/j.biortech.2016.02.102

Abstract

A novel approach was designed to simultaneously enhance nutrient removal and reduce membrane fouling for wastewater treatment using an attached growth biofilm (AGB) integrated with an osmosis membrane bioreactor (OsMBR) system for the first time. In this study, a highly charged organic compound (HEDTA(3-)) was employed as a novel draw solution in the AGB-OsMBR system to obtain a low reverse salt flux, maintain a healthy environment for the microorganisms. The AGB-OsMBR system achieved a stable water flux of 3.62L/m(2)h, high nutrient removal of 99% and less fouling during a 60-day operation. Furthermore, the high salinity of diluted draw solution could be effectively recovered by membrane distillation (MD) process with salt rejection of 99.7%. The diluted draw solution was re-concentrated to its initial status (56.1mS/cm) at recovery of 9.8% after 6h. The work demonstrated that novel multi-barrier systems could produce high quality potable water from impaired streams.

Keywords: Attached growth biofilm (AGB); Draw solution; High charge; Membrane distillation (MD); Osmosis membrane bioreactor (osmbr).

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Biofilms
Bioreactors*
Distillation / methods
Edetic Acid / analogs & derivatives
Edetic Acid / chemistry
Membranes, Artificial*
Osmosis
Salinity
Sodium Chloride
Wastewater / chemistry*
Water Purification / methods*

Substances

Membranes, Artificial
Waste Water
Sodium Chloride
Edetic Acid
N-(hydroxyethyl)ethylenediaminetriacetic acid