Microbial Fuel Cells for Oxidation of Electron Donors
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Abstract
The invention relates to an improved microbial fuel cell for treatment of fluid, especially liquid streams containing a substrate or electron donor for micro-organisms which comprises a membrane (2) separating the cathode (3) and the anode (1), this membrane (2) surrounding the anode (1).
35 Citations
62 Claims
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1-37. -37. (canceled)
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38. A microbial fuel cell for use for the treatment of aqueous substrate including organic matter and/or an electron donor, in which electrical current is generated from micro-organisms, comprising at least one reactor, each reactor comprising
an anode able to accept electrons and to transfer them to an external circuit, and able to sustain micro-organisms; -
a cathode able to transfer electrons from the external circuit to an electron acceptor or sink; a membrane, separating the cathode from the anode; and wherein the anode is three-dimensional and surrounded at least partly by the membrane. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61)
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62. A microbial fuel cell and a digester cell for use for the treatment of aqueous substrate containing at least one electron acceptor, in which electrical current is generated from micro-organisms, the microbial fuel cell comprising:
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an anode able to accept electrons and to transfer them to an external circuit, and able to sustain micro-organisms, a cathode able to transfer electrons from the external circuit to an electron acceptor or sink, and a membrane separating the cathode from the anode; and wherein an input to the microbial fuel cell includes sulphur compounds, further comprising means for controlling a potential of or a current passing through the anode or cathode to thereby control the conversion of the sulphur compounds to elemental sulphur or a soluble sulphur form.
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Specification