Integrated anammox membrane boelectrochemical system and sewage denitrification and decarbonization treatment technology

Abstract

The invention provides an integrated anammox membrane boelectrochemical system and a sewage denitrification and decarbonization treatment technology. The integrated anammox membrane boelectrochemicalsystem comprises an anode chamber, a cathode chamber and a membrane biological pool; a positive ion exchange membrane is arranged between the membrane biological pool and the anode chamber, a negativeion exchange membrane is arranged between the membrane biological pool and the cathode chamber, the anode chamber is internally provided with an anode material, the cathode chamber is internally provided with a cathode material and an aeration device, and the cathode material and the anode material are connected through an external circuit provided with a resistance-value-adjustable rheostat. Accordingly, by efficiently coupling a microorganism electricity generation technology, a membrane filtration technology and an anaerobic ammonium oxidation technology, according to the concentration ofNH4<+>-N in sewage, the resistance value of the rheostat is adjusted, the proportion of ammonia nitrogen and nitrite nitrogen in the anaerobic ammonia oxidation process can be precisely controlled, operation is easy, convenience is brought to control, the sewage treatment efficiency is high, and the system has the wide application prospect.

Description

technical field

[0001] The invention relates to a sewage biological treatment technology, in particular to an integrated anaerobic ammonium oxidation membrane bioelectrochemical system for denitrification and carbon removal of sewage and a treatment process for denitrification and carbon removal of sewage. Background technique

[0002] With the continuous increase of my country's population and the rapid development of industrial and agricultural production, the discharge of human production and domestic sewage is increasing, and a large number of environmental pollutants are discharged into water bodies, resulting in accelerated deterioration of the environment of receiving water bodies. In recent years, my country's waters The eutrophication of the environment is showing a trend of accelerating deterioration. The eutrophication of surface water has become one of the core problems of water pollution in my country, and the discharge of a large amount of nitrogen-containing sew...

Examples

Embodiment 1

[0043] Set the resistance value of the external rheostat to 5Ω, and the domestic sewage enters the anode chamber from the inlet pipe of the anode chamber. After being treated in the anode chamber, the water quality of the anode chamber effluent is: COD: 85mg / L, NH 4 + -N: 19mg / L; the effluent from the anode chamber enters the cathode chamber through the action of the water pump, and after being treated in the cathode chamber, the water quality of the effluent from the cathode chamber is: COD: 46mg / L, NO 2 - -N: 17mg / L, NH 4 + -N: 1.0mg / L; the effluent from the cathode chamber enters the membrane bioreaction tank through the external pipeline, and the NH entering the membrane bioreaction tank 4 + -N and NO 2 - -N ratio is 1:1.32, NH in the membrane bioreactor tank 4 + -N and NO 2 - -N is effectively removed under the action of anammox bacteria, and finally the water is filtered through the membrane. The quality of the membrane filtered water is: COD: 30mg / L, NH 4 + ...

Embodiment 2

[0045] Set the resistance value of the external rheostat to 2Ω, and the domestic sewage enters the anode chamber from the inlet pipe of the anode chamber. After being treated in the anode chamber, the water quality of the anode chamber effluent is: COD: 80mg / L, NH 4 + -N: 17mg / L; the effluent from the anode chamber enters the cathode chamber through the action of the water pump, and after being treated in the cathode chamber, the water quality of the effluent from the cathode chamber is: COD: 44mg / L, NO 2 - -N: 15mg / L, NH 4 + -N: 2mg / L; the effluent from the cathode chamber enters the membrane bioreaction tank through the external pipeline, and the NH entering the membrane bioreaction tank 4 + -N and NO 2 - -N ratio is 1:1, NH in the membrane bioreactor 4 + -N and NO 2 - -N is effectively removed under the action of anammox bacteria, and finally the water is filtered through the membrane. The quality of the membrane filtered water is: COD: 27mg / L, NH 4 + -N: 4.5mg / ...

Embodiment 3

[0047] Set the resistance value of the external rheostat to 10Ω, and the domestic sewage enters the anode chamber from the inlet pipe of the anode chamber. After being treated in the anode chamber, the water quality of the anode chamber effluent is: COD: 105mg / L, NH 4 + -N: 20mg / L; the effluent from the anode chamber enters the cathode chamber through the action of the water pump, and after being treated in the cathode chamber, the water quality of the effluent from the cathode chamber is: COD: 70mg / L, NO 2 - -N: 18mg / L, NH 4 + -N: 2mg / L; the effluent from the cathode chamber enters the membrane bioreaction tank through the external pipeline, and the NH entering the membrane bioreaction tank 4 + -N and NO 2 - -N ratio is 1:1.5, NH in the membrane bioreactor 4 + -N and NO 2 - -N is effectively removed under the action of anammox bacteria, and finally the water is filtered through the membrane. The quality of the membrane filtered water is: COD: 55mg / L, NH 4 + -N: 1m...

technical field

[0001] The invention relates to a sewage biological treatment technology, in particular to an integrated anaerobic ammonium oxidation membrane bioelectrochemical system for denitrification and carbon removal of sewage and a treatment process for denitrification and carbon removal of sewage. Background technique

[0002] With the continuous increase of my country's population and the rapid development of industrial and agricultural production, the discharge of human production and domestic sewage is increasing, and a large number of environmental pollutants are discharged into water bodies, resulting in accelerated deterioration of the environment of receiving water bodies. In recent years, my country's waters The eutrophication of the environment is showing a trend of accelerating deterioration. The eutrophication of surface water has become one of the core problems of water pollution in my country, and the discharge of a large amount of nitrogen-containing sew...

Examples

Embodiment 1

[0043] Set the resistance value of the external rheostat to 5Ω, and the domestic sewage enters the anode chamber from the inlet pipe of the anode chamber. After being treated in the anode chamber, the water quality of the anode chamber effluent is: COD: 85mg / L, NH 4 + -N: 19mg / L; the effluent from the anode chamber enters the cathode chamber through the action of the water pump, and after being treated in the cathode chamber, the water quality of the effluent from the cathode chamber is: COD: 46mg / L, NO 2 - -N: 17mg / L, NH 4 + -N: 1.0mg / L; the effluent from the cathode chamber enters the membrane bioreaction tank through the external pipeline, and the NH entering the membrane bioreaction tank 4 + -N and NO 2 - -N ratio is 1:1.32, NH in the membrane bioreactor tank 4 + -N and NO 2 - -N is effectively removed under the action of anammox bacteria, and finally the water is filtered through the membrane. The quality of the membrane filtered water is: COD: 30mg / L, NH 4 + ...

Embodiment 2

[0045] Set the resistance value of the external rheostat to 2Ω, and the domestic sewage enters the anode chamber from the inlet pipe of the anode chamber. After being treated in the anode chamber, the water quality of the anode chamber effluent is: COD: 80mg / L, NH 4 + -N: 17mg / L; the effluent from the anode chamber enters the cathode chamber through the action of the water pump, and after being treated in the cathode chamber, the water quality of the effluent from the cathode chamber is: COD: 44mg / L, NO 2 - -N: 15mg / L, NH 4 + -N: 2mg / L; the effluent from the cathode chamber enters the membrane bioreaction tank through the external pipeline, and the NH entering the membrane bioreaction tank 4 + -N and NO 2 - -N ratio is 1:1, NH in the membrane bioreactor 4 + -N and NO 2 - -N is effectively removed under the action of anammox bacteria, and finally the water is filtered through the membrane. The quality of the membrane filtered water is: COD: 27mg / L, NH 4 + -N: 4.5mg / ...

Embodiment 3

[0047] Set the resistance value of the external rheostat to 10Ω, and the domestic sewage enters the anode chamber from the inlet pipe of the anode chamber. After being treated in the anode chamber, the water quality of the anode chamber effluent is: COD: 105mg / L, NH 4 + -N: 20mg / L; the effluent from the anode chamber enters the cathode chamber through the action of the water pump, and after being treated in the cathode chamber, the water quality of the effluent from the cathode chamber is: COD: 70mg / L, NO 2 - -N: 18mg / L, NH 4 + -N: 2mg / L; the effluent from the cathode chamber enters the membrane bioreaction tank through the external pipeline, and the NH entering the membrane bioreaction tank 4 + -N and NO 2 - -N ratio is 1:1.5, NH in the membrane bioreactor 4 + -N and NO 2 - -N is effectively removed under the action of anammox bacteria, and finally the water is filtered through the membrane. The quality of the membrane filtered water is: COD: 55mg / L, NH 4 + -N: 1m...

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