Electrolytic tank apparatus using oxygen reduction cathode
An electrolytic cell and cathode technology, which is applied in the direction of water pollutants, water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems that the hydrogen produced by the cathode cannot be effectively recycled, and the danger of mutual mixing can be avoided. Effects of reversible redox reaction, increasing cathode potential, and reducing plate spacing
Active Publication Date: 2016-04-06
BEIHANG UNIV
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Moreover, because the reaction is carried out in an open electrolytic cell, the hydrogen produced by the cathode has not been effectively recycled, and the by-product oxygen of the anode and the hydrogen produced by the cathode are also potentially dangerous.
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[0043] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0044] Such as figure 1 , figure 2 , image 3 and Figure 4As shown, the electrolyzer device adopting an oxygen reduction cathode according to an embodiment of the present invention includes a partition chamber 7 and glass fibers filled in the cavity thereof, and an anode chamber and a cathode chamber on both sides of the partition chamber 7; The anode chamber includes an anode end plate 1, a porous anode support material 4 and an anode catalyst layer 5, and the anode end plate 1 is provided with an anode flow field groove 2 on the side facing the partition chamber 7, and the anode flow field The water inlet end of the tank 2 is provided with an anode water inlet 101, and the water outlet...
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The present invention relates to an electrolytic tank apparatus using a oxygen reduction cathode, and provides an efficient and economical treatment process to change the traditional refractory organic wastewater. The invention uses the electrolytic tank based on oxygen reduction cathode; under the applied voltage of 1-5 volts, an anode conducts efficient mineralization decomposition on the refractory organic pollutants and ammonia nitrogen in the organic waste, and the cathode reduces the introduced oxygen into water. The invention is unique in that the oxygen reduction cathode has higher electrode potential than a traditional hydrogen producing cathode, so as to reduce the reversible reduction process of organic pollutants in the cathode, and enhance the current efficiency. In addition, compared with the energy consumption of a traditional electrolytic tank, the apparatus provided by the invention effectively reduces the spacing of plate electrodes and increases the cathode potential, resulting in significantly lowering of the electrolytic tank voltage and greatly enhancement of the economical performance of an electrochemical oxidation wastewater treatment process.
Description
technical field [0001] The invention relates to an electrolytic cell device using an oxygen reduction cathode based on a porous gas diffusion electrode, which belongs to the water treatment industrial technology in the field of environmental protection. Background technique [0002] Many industrial wastewaters have poor biodegradability and contain a large amount of ammonia, cyanide, phenols, pyridine, quinoline and other inorganic or organic aromatic toxic substances, which are difficult to biodegrade. Electrochemical advanced oxidation is an effective method to treat such industrial wastewater. Electrochemical oxidation uses free radicals generated on the electrode surface (such as direct oxidation of hydroxyl radicals) or generated oxidants (such as indirect oxidation of hypochlorous acid), which can effectively oxidize and degrade water Organic Pollutants. The method has the characteristics of high processing efficiency, simple operation, environmental friendliness, etc...
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Login to View More IPC IPC(8): C02F1/461C02F101/30
CPCC02F1/461C02F1/46109C02F2001/46133C02F2001/46142C02F2001/46166C02F2101/30
Inventor 卢善富梁大为陈思安相艳
Owner BEIHANG UNIV