Microbial electrodeionization cell stack for sustainable desalination, wastewater treatment and energy recovery

Noura A. Shehab, Bruce E. Logan, Gary L. Amy, Pascal E. Saikaly

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

The microbial desalination cell (MDC) is a promising technology to desalinate water without electrical energy input. In this study we developed a new configuration of an MDC called a microbial electrodeionization cell (MEDIC) stack using an MDC packed with ion-exchange resins (IERs) to enhance water desalination. Two different volumes (1.5 mL and 2.5 mL) of IERs were tested and compared to a control MDC without resins. The MEDIC reactor with 2.5 mL IER improved desalination performance by ~ 40% using a relatively low-concentration salt solution and produced better quality water than the control MDC, due to the decrease in ohmic resistance by almost 28 Ω and improved cell conductivity. With 2.5 mL of IERs, power density increased by 70% from 0.38 (control MDC) to 0.65 W/m2.These results demonstrated that substantially improved performance can be achieved with an MEDIC reactor compared to conventional MDCs due to the use of IERs.

Original languageEnglish (US)
Title of host publication86th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2013
PublisherWater Environment Federation
Pages222-227
Number of pages6
ISBN (Electronic)9781510870444
StatePublished - Jan 1 2013
Event86th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2013 - Chicago, United States
Duration: Oct 5 2013Oct 9 2013

Publication series

Name86th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2013
Volume1

Conference

Conference86th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2013
CountryUnited States
CityChicago
Period10/5/1310/9/13

All Science Journal Classification (ASJC) codes

  • Water Science and Technology
  • Ecological Modeling
  • Environmental Chemistry
  • Pollution
  • Waste Management and Disposal

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  • Cite this

    Shehab, N. A., Logan, B. E., Amy, G. L., & Saikaly, P. E. (2013). Microbial electrodeionization cell stack for sustainable desalination, wastewater treatment and energy recovery. In 86th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2013 (pp. 222-227). (86th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2013; Vol. 1). Water Environment Federation.