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Interactive type three-chamber biological fuel cell device and method for denitriding wastewater by using device

The invention discloses an interactive type three-chamber biological fuel cell device and a method for denitriding wastewater by using the device, belongs to the sewage biological remediation and in particular relates to a denitrification treatment method applicable to wastewater containing nitrate nitrogen. By adopting the method, nitrate instead of oxygen is taken as an electron acceptor of a negative electrode on the basis of a conventional two-chamber biological fuel cell, and a three-chamber biological fuel cell consisting of a middle positive electrode chamber and two side negative electrode chambers is built; meanwhile, the conditions of switching on and off a middle positive electrode and two side negative electrodes are controlled interactively through a control switch, so that an electrode denitrification process and a non-electrode denitrification process of the negative electrode are reasonably matched to process. The method is capable of sustainably generating current and effectively removing nitrate nitrogen and saving an organic carbon source needed for denitrification; the method is a novel sewage treatment method based on energy conservation and consumption reduction and is good in application prospect.
Owner:NANJING HEHAI TECH
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