1 5 5 1 1 7 3 2 1 0 0 2 2 g
Home About us MoEF Contact us Sitemap Tamil Website  
About Envis
Whats New
Microorganisms
Research on Microbes
Database
Bibliography
Publications
Library
E-Resources
Microbiology Experts
Events
Online Submission
Access Statistics

Site Visitors

blog tracking


 
Biochemical Engineering Journal
Vol. 117, 2017, Pages: 8791

Microbial fuel cell fed by Barnett Shale produced water: Power production by hypersaline autochthonous bacteria and coupling to a desalination unit

Oihane Monzon, Yu Yang, Jun Kim, Amy Heldenbrand, Qilin Li, Pedro J.J. Alvarez

Department of Civil & Environmental Engineering, Rice University, Houston, TX 77005, USA.

Abstract

Hydraulic fracturing for oil and gas production can generate large volumes of highly saline produced waters that pose a significant disposal challenge and a potential opportunity for reuse. Here, we report on a microbial fuel cell (MFC) fed with produced water (Barnett Shale), which produced power (47 mW/m2) and accomplished a COD removal efficiency of 68% (influent COD 10,520 ± 1340 mg/L). Bacterial population analysis showed two autochthonous halophilic species colonizing the anode, H. praevalens and M. hydrocarbonoclasticus. In addition, we demonstrated that hypersaline MFCs (100 g/L NaCl) can produce electricity to power a capacitive deionization (CDI) device for desalination, with a salt adsorption capacity of up to 40 mg of salt per g of carbon electrode. This is the first report of a MFC operating with hypersaline produced water, and illustrates the potential to couple MFCs with CDI to enable desalination and reuse of hypersaline wastewaters.

Keywords: Microbial fuel cell; Produced water; High salinity; Desalination; H. praevalens; M. hydrocarbonoclasticus.

 
Copyright © 2005 ENVIS Centre ! All rights reserved
This site is optimized for 1024 x 768 screen resolution