A review of microbial desalination cell technology

Configurations, optimization and applications

Abdullah Al-Mamun, Waqar Ahmad, Mahad Said Baawain, Mohammad Khadem, Bipro Ranjan Dhar

Research output: Contribution to journalReview article

14 Citations (Scopus)

Abstract

Seawater could be a potential source of freshwater to manage the intensified demand of drinking water for new generations. The recent techniques for desalination and wastewater treatment are energy intensive and unsustainable. Therefore, an integrated and sustainable approach is essential to achieve cost-effective desalination through wastewater treatment. Microbial desalination cell (MDC) has been proven to be one of the emerging technologies capable of simultaneous wastewater treatment, seawater desalination and eco-energy production. This technique generates electricity through the bio-electrochemical oxidation of organics present in wastewater. The produced electricity is utilized to drive the migration of ions in MDC system. This ionic migration will result in desalination as well as formation of value-added by-products. The review summarizes the recently investigated MDC configurations along with their critical evolution of designs and operational parameters on the desalination and power generation capabilities. The review also acknowledges the emerging applications of MDC for microbial electrochemical desalination, bio-remediation, nutrients recovery, water softening, and value-added chemical production. The key findings included that the MDC system achieved a remarkable desalination without any external power input, and treatment of wastewater, and recovery of power without intermediate steps. The technical challenges associated with their practical applications were maintaining the pH in cathodic and anodic fluids, higher internal resistance, usage of catalysts on electrodes, and membrane fouling and durability. However, for certain configurations especially for microbial electrolysis and desalination cell (MEDC)/microbial electrolysis desalination and chemical production cell (MEDCC), the integration with electrodialysis module can significantly increase their performances. The installation of ED module will establish the pH neutrality and increased water recovery through recirculation of electrolytes between chambers of ED module and these MDC configurations. However, the sustainable development of MDC technology and its scale-up requires future investigations related to prevention of membrane fouling, materials feasibility, electron transfer kinetics, microbial growth and durability of catalyst. The feasibility studies are also needed to be conducted for determining the suitability of MDC operation in terms of reactor performance and stability.

Original languageEnglish
Pages (from-to)458-480
Number of pages23
JournalJournal of Cleaner Production
Volume183
DOIs
Publication statusPublished - May 10 2018

Fingerprint

Desalination
desalination
Wastewater treatment
Membrane fouling
durability
Seawater
Recovery
fouling
electrokinesis
electricity
Durability
Wastewater
Regenerative fuel cells
Electricity
catalyst
membrane
seawater
wastewater
Electrodialysis
Catalysts

Keywords

  • Bioelectricity
  • Fuel cell design. contents
  • Microbial desalination cell
  • Seawater desalination
  • Wastewater treatment

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Environmental Science(all)
  • Strategy and Management
  • Industrial and Manufacturing Engineering

Cite this

A review of microbial desalination cell technology : Configurations, optimization and applications. / Al-Mamun, Abdullah; Ahmad, Waqar; Baawain, Mahad Said; Khadem, Mohammad; Dhar, Bipro Ranjan.

In: Journal of Cleaner Production, Vol. 183, 10.05.2018, p. 458-480.

Research output: Contribution to journalReview article

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