Journal
BIOTECHNOLOGY ADVANCES
Volume 33, Issue 1, Pages 1-12Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.biotechadv.2014.12.011
Keywords
Bioremediation; Benthic microbial fuel cells (BMFC); Sediment; Stimulation; Self-sustained; Photosynthetic microorganisms
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Funding
- Key Special Program on the S&T for the Pollution Control [2012ZX07103-001]
- Natural Science Foundation of China [51278479]
- Program for Changjiang Scholars and Innovative Research Team
- Collaborative Innovation Center of Suzhou Nano Science and Technology of the Ministry of Education of China
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Efficient and sustainable technologies for cleaning up of contaminated sediments are under urgent demand. Bioremediation by utilizing the natural metabolic activities of sediment-inhabited microorganisms has been widely accepted as a viable option, but the relatively low efficiency and poor controllability severely limite its application. Here, we bring out the concept that electrochemical approaches may be used as an efficient means to stimulate sediment bioremediation. Although still at the very beginning, benthic microbial fuel cells (BMFC) as a remediation technology show many potential benefits, such as accelerated decontamination, self-sustained operation, relatively easy deployment and control, and environmental benignity. The unique features of BMFC setup and operation also give rise to substantially different challenges compared to conventional MFCs. In this review, we present a critical overview on the characteristics, possible application niches, and state-of-the-art progress of this technology. Especially, the current limitations in respect of system design, electrode selection, microbial control and selection of deployment environment are discussed in details, and the needed future research endeavors to promote its practical application are highlighted. (C) 2014 Elsevier Inc. All rights reserved.
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