NOVELTY - A column-type microbiological fuel cell (MFC) without ion exchange membrane and mediator, comprises anode chamber, cathode chamber and external circuit. The anode chamber is located in cylinder with center arranged with one carbon rod, and the inner part of cylinder is filled with granular activated carbon. The cathode chamber is located in ring-shaped area between the anode chamber cylinder and the external cylinder coated out of the anode chamber. The anode and cathode chambers are respectively arranged with water inlet and water outlet of the anode solution and cathode solution.    USE - Column-type microbiological fuel cell without ion exchange membrane and mediator.    ADVANTAGE - The MFC effectively reduces internal resistance, decreases the consumption of produced electric energy on the internal resistance, increases the output of electric energy and removes the organic pollution. It is applied without ion exchange membrane and aeration, thus reducing the operation cost. The electron transferring mediator is not required, which avoids the secondary pollution of the mediator to the environment.    DETAILED DESCRIPTION - A column-type MFC without ion exchange membrane and mediator, comprises anode chamber, cathode chamber and external circuit. The anode chamber is located in cylinder with center arranged with one carbon rod, and the inner part of cylinder is filled with granular activated carbon. The cathode chamber is located in ring-shaped area between the anode chamber cylinder and the external cylinder coated out of the anode chamber. The wall of the cylinder is of multi-hole shape, and the inner and outer sides of the cylinder wall are respectively arranged with anode carbon cloth and cathode cloth. The anode and cathode chambers are respectively arranged with water inlet and water outlet of the anode solution and cathode solution.    DESCRIPTION OF DRAWING(S) - The drawing is a perspective view of a column-type MFC without ion exchange membrane and mediator.