Bioelectrochemical reactor for treating organic fluoride-containing wastewater and treatment method for organic fluoride-containing wastewater

Abstract

The invention discloses a bioelectrochemical reactor for treating organic fluoride-containing wastewater and a treatment method for the organic fluoride-containing wastewater. The bioelectrochemical reactor comprises a bed body, a partition plate, a conduit, a biological cathode, a biological anode, a power supply, a water inlet and a water outlet, wherein the partition plate is vertically arranged in the bed body, and divides the bed body into a cathode chamber and an anode chamber; the bottoms of the cathode chamber and the anode chamber are communicated through the conduit; the power supply is connected with the biological cathode and the biological anode; the water inlet is formed in the cathode chamber; the water outlet is formed in the anode chamber. According to the bioelectrochemical reactor and the treatment method, the organic fluoride-containing wastewater is treated in two stages under the catalysis action of cathode and anode microorganisms, so that the treatment efficiency of the organic fluoride-containing wastewater is improved, the overall treatment cost of the organic fluoride-containing wastewater is lowered, and the problem of difficulty in the biodegradation of the organic fluoride-containing wastewater is solved.

Description

technical field [0001] The invention relates to a reactor for degrading and mineralizing organic wastewater, in particular to a bioelectrochemical reactor for organic fluorine wastewater treatment and a method for treating organic fluorine wastewater with the bioelectrochemical reactor. Background technique [0002] As a special material, organic fluoride has excellent properties and has been widely used in the preparation process of surfactants, flame retardants, refrigerants, pesticides, adhesives, medicines, etc. in recent years, which directly promotes the development of organic fluorine. The rapid development of the industry. During the development of the organic fluorine industry, the discharge of organic fluorine wastewater continues to increase, and the organic fluorine pollutants in these wastewaters have teratogenic, carcinogenic and mutagenic properties, and some fluorinated aromatic hydrocarbons have been proposed as new POPs , so organic fluorine wastewater mus...

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Problems solved by technology

[0005] There is no bioelectrochemical reactor for treating organic fluorine wastewater in the prior art, and because the C-F bond in organic fluorine wastewater has strong polarity and the largest bond energy, Existing bioelectrochemical reactors for treating other wastewater are not suitable for treating organic fluorine wastewater. For example, the Chinese invention patent application with publication number CN102351312A discloses a bioelectrochemical simultaneous nitrification and denitrification reactor. The reactor is composed of bed body, bioanode, biocathode, filler, gas flow meter, aerator, aeration head, circulation pump, DC stabilized voltage power supply; biocathode and bioanode are placed on both sides of the reactor respectively, It is connected to the negative and positive poles of the DC power supply; the filler is filled in the bed body; the aeration head is placed in the upper middle of the bed body; the two ends of the bed body are respectively equipped with water inlet and water outlet, and the circulation pipeline is connected to the circulation pump for internal circulation ;The top of the reactor is equipped with an exhaust port, which communicates with the outside world. This reactor can only carry out primary treatment of wastewater, which cannot meet the standard of organic fluorine wastewater treatment.

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