Journal ArticleDOI
Simultaneous organic carbon, nutrients removal and energy production in a photomicrobial fuel cell (PFC)
TLDR
In this paper, a sediment-type photomicrobial fuel cell (PFC) based on the synergistic interaction between microalgae (Chlorella vulgaris) and electrochemically active bacteria, was developed to remove carbon and nutrients from wastewater, and produce electricity and algal biomass simultaneously.Abstract:
A sediment-type photomicrobial fuel cell (PFC), based on the synergistic interaction between microalgae (Chlorella vulgaris) and electrochemically active bacteria, was developed to remove carbon and nutrients from wastewater, and produce electricity and algal biomass simultaneously. Under illumination, a stable power density of 68 ± 5 mW m−2 and a biomass of 0.56 ± 0.02 g L−1 were generated at an initial algae concentration of 3.5 g L−1. Accordingly, the removal efficiency of organic carbon, nitrogen and phosphorus was 99.6%, 87.6% and 69.8%, respectively. Mass balance analysis suggested the main removal mechanism of nitrogen and phosphorus was the algae biomass uptake (75% and 93%, respectively), while the nitrification and denitrification process contributed to a part of nitrogen removal (22%). In addition, the effect of illumination period on the performance of PFC was investigated. Except notable fluctuation of power generation, carbon and nutrients removal was not significantly affected after changing the light/dark photoperiod from 24 h/0 h to 10 h/14 h. This work represents the first successful attempt to develop an effective bacteria–algae coupled system, capable for extracting energy and removing carbon, nitrogen and phosphorus from wastewater in one-step.read more
Citations
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Journal ArticleDOI
Towards sustainable wastewater treatment by using microbial fuel cells-centered technologies
Wen-Wei Li,Han-Qing Yu,Zhen He +2 more
TL;DR: In this paper, the authors proposed integration of MFCs with other treatment technologies to form an MFC-centered treatment scheme based on thoroughly analyzing the challenges and opportunities, and discuss future efforts to be made for realizing sustainable wastewater treatment.
Journal ArticleDOI
Nutrients removal and recovery in bioelectrochemical systems: A review
Patrick T. Kelly,Zhen He +1 more
TL;DR: This paper has reviewed the nutrients removal and recovery in various BES including microbial fuel cells and microbial electrolysis cells, discussed the influence factors and potential problems, and identified the key challenges for nitrogen and phosphorus removal/recovery in a BES.
Journal ArticleDOI
Wastewater treatment in microbial fuel cells – an overview
TL;DR: In this paper, the potential for energy generation and comprehensive wastewater treatment in microbial fuel cells is discussed, and an overview of current energy needs for wastewater treatment and potential energy recovery options are provided.
Journal ArticleDOI
Can Microalgae Remove Pharmaceutical Contaminants from Water
TL;DR: This review comprehensively describes the current research on the possible roles and applications of microalgae for removing PCs from aqueous media and summarizes several novel approaches including constructing microbial consortia, acclimation, and cometabolism for enhanced removal of PCs by microalgal.
Journal ArticleDOI
Recent progress in microalgal biomass production coupled with wastewater treatment for biofuel generation
El-Sayed Salama,Mayur B. Kurade,Reda A.I. Abou-Shanab,Marwa M. El-Dalatony,Il Seung Yang,Booki Min,Byong-Hun Jeon +6 more
TL;DR: The systematic description of the technologies required for the successful integration of wastewater treatment and cultivation of microalgae for biomass production toward biofuel generation was discussed and the future directions for integrated wastewatertreatment and microalgal biomass production for industrial applications were suggested.
References
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Journal ArticleDOI
Microbial fuel cells: novel biotechnology for energy generation
Korneel Rabaey,Willy Verstraete +1 more
TL;DR: How bacteria use an anode as an electron acceptor and to what extent they generate electrical output is discussed and the MFC technology is evaluated relative to current alternatives for energy generation.
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Electricity generation using an air-cathode single chamber microbial fuel cell in the presence and absence of a proton exchange membrane.
Hong Liu,Bruce E. Logan +1 more
TL;DR: An analysis based on available anode surface area and maximum bacterial growth rates suggests that mediatorless MFCs may have an upper order-of-magnitude limit in power density of 10(3) mW/m2.
Journal ArticleDOI
Production of electricity during wastewater treatment using a single chamber microbial fuel cell.
TL;DR: It is demonstrated here that it is also possible to produce electricity in a MFC from domestic wastewater, while at the same time accomplishing biological wastewater treatment (removal of chemical oxygen demand; COD), which may represent a completely new approach to wastewater treatment.
Journal ArticleDOI
Yellow‐green algae with chlorophyllide c1,2
TL;DR: Chlorophyllide c (chlorophyll c) wax found in axenic or unialgal cultures of 5 members of the class Xanthophyceae and in 2 members ofThe class Raphidophyceai (ChloromonadophyceAE).
Journal ArticleDOI
Continuous electricity generation from domestic wastewater and organic substrates in a flat plate microbial fuel cell.
Booki Min,Bruce E. Logan +1 more
TL;DR: Power output was found to be a function of wastewater strength according to a Monod-type relationship, with a half-saturation constant of Ks = 461 or 719 mg COD/L, and power generation was sustained at high rates with several organic substrates.