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    Examination of microbial fuel cell start-up times with domestic wastewater and additional amendments

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    Type
    Article
    Authors
    Liu, Guangli
    Yates, Matthew D.
    Cheng, Shaoan
    Call, Douglas F.
    Sun, Dan
    Logan, Bruce E.
    KAUST Grant Number
    KUS-I1-003-13
    Date
    2011-08
    Permanent link to this record
    http://hdl.handle.net/10754/598264
    
    Metadata
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    Abstract
    Rapid startup of microbial fuel cells (MFCs) and other bioreactors is desirable when treating wastewaters. The startup time with unamended wastewater (118h) was similar to that obtained by adding acetate or fumarate (110-115h), and less than that with glucose (181h) or Fe(III) (353h). Initial current production took longer when phosphate buffer was added, with startup times increasing with concentration from 149h (25mM) to 251h (50mM) and 526h (100mM). Microbial communities that developed in the reactors contained Betaproteobacteria, Acetoanaerobium noterae, and Chlorobium sp. Anode biomass densities ranged from 200 to 600μg/cm2 for all amendments except Fe(Sh{cyrillic}) (1650μg/cm2). Wastewater produced 91mW/m2, with the other MFCs producing 50mW/m2 (fumarate) to 103mW/m2 (Fe(III)) when amendments were removed. These experiments show that wastewater alone is sufficient to acclimate the reactor without the need for additional chemical amendments. © 2011 Elsevier Ltd.
    Citation
    Liu G, Yates MD, Cheng S, Call DF, Sun D, et al. (2011) Examination of microbial fuel cell start-up times with domestic wastewater and additional amendments. Bioresource Technology 102: 7301–7306. Available: http://dx.doi.org/10.1016/j.biortech.2011.04.087.
    Sponsors
    The authors would like to thank Ms. Henjing Yan and Mr. Sokhee Jung for assisting the DGGE analysis. This research was supported by Award KUS-I1-003-13 from the King Abdullah University of Science and Technology (KAUST) and a scholarship from the China Scholarship Council (CSC, No. 27A49011).
    Publisher
    Elsevier BV
    Journal
    Bioresource Technology
    DOI
    10.1016/j.biortech.2011.04.087
    PubMed ID
    21601444
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.biortech.2011.04.087
    Scopus Count
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