A device for treating refractory organic wastewater and its application

Abstract

The invention provides a device for treating refractory organic waste water, comprising a photoelectric catalytic oxidation unit and a microbial fuel cell (MFC) coupling system. Wherein the photoelectric catalytic oxidation unit and the MFC are respectively connected and coordinated on the circuit and the waterway at the same time, and the MFC includes a primary MFC and a secondary MFC. The water body is first oxidized by photoelectric catalysis, and the effluent enters the two-stage MFC connected in series in the water circuit; on the circuit, the two-stage MFCs are independent and respectively provide bias voltage for the photoelectric catalytic oxidation device. The invention also provides a method for treating wastewater by using the photoelectric catalytic oxidation unit and a microbial fuel cell (MFC) coupling system and the application of the device in treating organic wastewater.

Description

technical field [0001] The present invention relates to the treatment of refractory organic wastewater, in particular, relates to a device and method for treating organic wastewater using a photoelectric catalytic oxidation unit and a microbial fuel cell (MFC) coupling system, and the device is used in the treatment of refractory organic wastewater the use of. Background technique [0002] With the development of industry and the improvement of human living standards, the types and discharge of industrial organic wastewater and domestic sewage are increasing, and the composition is more complex. At present, there are many studies on the treatment of refractory organic pollutants in water, and the technologies used mainly include physical methods (adsorption, ultrafiltration, etc.), chemical methods (advanced oxidation), and biochemical methods (activated sludge, etc.). However, most methods require additional energy and high energy consumption, which will inevitably increas...

AI Technical Summary

Problems solved by technology

Li Jun (Li et al., 2013) coupled a single-chamber non-diaphragm air-cathode MFC with two sets of photosynthetic biological hydrogen production reactors (PBR) on the waterway. The MFC anode can change the volatility of the photosynthetic biological hydrogen production reactor effluent water The composition of fatty acids, and the cathode can remove extra protons, making the substrate solution more suitable for the subsequent hydrogen production reaction, which realizes the coupling of water channels, but does not have the in-situ utilization of MFC electrical energy

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