Chemistry: electrical current producing apparatus – product – and – Having living matter – e.g. – microorganism – etc.
Reexamination Certificate
2003-05-14
2009-06-09
Neckel, Alexa D (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
Having living matter, e.g., microorganism, etc.
C429S047000, C429S047000, C429S010000, C429S010000
Reexamination Certificate
active
07544429
ABSTRACT:
Disclosed is a mediator-less microbial fuel cell comprising a cathode compartment, an anode compartment, with or without glass wool and glass bead for separating the two compartments, an element for feeding air to the cathode compartment, and an element for feeding wastewater to the anode compartment. The cell further comprises an element for controlling the distance between the cathode compartment and the anode compartment. Graphite felt or graphite felt coated with a metal such as platinum is used as an electrode of the cathode compartment, and a buffer solution is used in the anode compartment. A mediator-less microbial fuel cell according to the present invention can be operated without using an expensive cation-exchange membrane, of which efficiency is by no means inferior to prior wastewater treatment methods.
REFERENCES:
patent: 5126034 (1992-06-01), Carter et al.
patent: 5976719 (1999-11-01), Kim et al.
Chang In Seop
Gil Geun Cheol
Jang Jae Kyung
Kim Byung Hong
Jones Day
Korea Institute of Science and Technology
Neckel Alexa D
Rademaker Claire L
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