Disclosure of utility model
The utility model aims to provide a self-maintaining electro-Fenton coupling biological membrane sewage treatment system, which adopts an electro-Fenton coupling biological membrane technology, can efficiently treat novel pollutants in a water body, achieves the effect of denitrification and dephosphorization, improves the degradation efficiency of organic matters, and ensures the safety of water outlet.
In order to solve the technical problems, the self-maintenance electro-Fenton coupling biological membrane sewage treatment system comprises a cooperative treatment tank, wherein an aeration device is paved at the bottom of a tank body of the cooperative treatment tank, a filler module is arranged in the tank body of the cooperative treatment tank and is arranged above the aeration device, the aeration device is connected with an air compressor for aeration, anode parts and cathode parts are respectively arranged at two sides of the filler module in the tank body of the cooperative treatment tank, the anode parts and the cathode parts are arranged at two sides of the filler module in a flat plate shape in parallel, and the anode parts and the cathode parts are electrically connected with a power supply system.
The self-maintenance electro-Fenton coupling biological membrane sewage treatment system comprises a photovoltaic device, a storage battery, an inverter and an automatic controller, wherein the photovoltaic device is electrically connected with the storage battery through the inverter, the photovoltaic device generates electricity through solar energy, the photovoltaic device is converted into direct current through the inverter and stored in the storage battery, the storage battery is electrically connected with an anode part and a cathode part through the automatic controller, the anode of the storage battery is correspondingly connected with the anode part, and the cathode of the storage battery is correspondingly connected with the cathode part.
The self-maintenance electro-Fenton coupling biological membrane sewage treatment system further comprises a direct current power supply, wherein the direct current power supply is electrically connected with the anode part and the cathode part through the automatic controller, the positive electrode of the direct current power supply is correspondingly connected with the anode part, the negative electrode of the direct current power supply is correspondingly connected with the cathode part, and the direct current power supply is a standby power supply for preventing the shortage of electric quantity of the storage battery.
The self-maintenance electro-Fenton coupling biological membrane sewage treatment system further comprises an adjusting tank, wherein the adjusting tank is arranged at the front end of the cooperative treatment tank and is used for adjusting water quality so as to meet the required proper pH condition, and the pH range is 2-5.
The self-maintenance electro-Fenton coupling biological membrane sewage treatment system is characterized in that a pH detection device, an automatic dosing device and a stirring device are arranged in the regulating tank, the pH value of sewage is detected through the pH detection device, and the automatic dosing device pumps acid and alkali solution under the stirring of the stirring device according to the monitoring number to regulate the pH value.
The self-maintaining electro-Fenton coupling biological membrane sewage treatment system further comprises a water inlet buffer tank, wherein the water inlet buffer tank is arranged at the front end of the regulating tank, and organic wastewater generated in a certain period of time is discharged into the water inlet buffer tank to be fully mixed so as to reduce the impact of water quality and water quantity impact on the reaction system.
In the self-sustaining electro-Fenton coupled biological membrane sewage treatment system, the cathode component is a Cu-C3N4 electrode, and the anode component is a graphene electrode.
The self-maintaining electro-Fenton coupling biological membrane sewage treatment system is characterized in that the filler module adopts iron-carbon electrolytic filler.
Compared with the prior art, the water inlet buffer tank provided by the utility model discharges the organic wastewater generated in a certain period of time into the water inlet buffer tank for full mixing so as to reduce the impact of water quality and water quantity impact on a reaction system, and the water quality is regulated by the regulating tank so as to meet the required proper pH condition; the utility model adopts the electro-Fenton coupling biological film technology to efficiently treat novel pollutants in water, oxygen is converted into H 2O2,H2O2 in a catalytic electrode under the action of electric energy to generate electrons under the catalytic action of the electrode, and the electrons can mineralize and degrade the organic pollutants difficult to degrade to realize deep removal.
Detailed Description
The embodiment 1 of the utility model relates to a self-maintenance electro-Fenton coupling biological membrane sewage treatment system, which comprises a cooperative treatment tank 1, wherein an aeration device 2 is paved at the bottom of a tank body of the cooperative treatment tank 1, a filler module 3 is arranged in the tank body of the cooperative treatment tank 1, the filler module 3 is arranged above the aeration device 2, an anode part 4 and a cathode part 5 are respectively arranged at two sides of the filler module 3 in the tank body of the cooperative treatment tank 1, and the anode part 4 and the cathode part 5 are electrically connected with a power supply system 6.
The aeration device 2 positioned below the filler module 3 in the synergistic treatment tank 1 is used for aeration, the aeration rate is adjusted according to the concentration of pollutants, O 2 is under the action of electric energy, water in a catalytic electrode is converted into H 2O2,H2O2 to generate OH under the catalytic action of the electrode, the OH can mineralize and degrade refractory organic pollutants, the deep removal is realized, and the reaction is as follows:
O2+2H2O+2e-→H2O2+2OH-
Fe2++H2O→Fe3++·OH+OH-
Fe3++e-→Fe2+
Novel contaminant + & OH- & gtoxidation intermediates
Oxidation intermediate + & OH- & gtCO 2+H2 O+ inorganic ion
The embodiment 2 of the utility model relates to a self-maintenance electro-Fenton coupling biological membrane sewage treatment system, which comprises a cooperative treatment tank 1, wherein an aeration device 2 is paved at the bottom of a tank body of the cooperative treatment tank 1, a filler module 3 is arranged in the tank body of the cooperative treatment tank 1, the filler module 3 is arranged above the aeration device 2, an anode part 4 and a cathode part 5 are respectively arranged at two sides of the filler module 3 in the tank body of the cooperative treatment tank 1, and the anode part 4 and the cathode part 5 are electrically connected with a power supply system 6.
The aeration device 2 positioned below the filler module 3 in the synergistic treatment tank 1 is used for aeration, the aeration rate is adjusted according to the concentration of pollutants, O 2 is under the action of electric energy, water in the catalytic electrode is converted into H 2O2,H2O2 to generate OH under the catalytic action of the electrode, and the OH can mineralize and degrade the organic pollutants difficult to degrade, so that deep removal is realized.
The power supply system 6 comprises a photovoltaic device 7, a storage battery 8, an inverter 9 and an automatic controller 10, wherein the photovoltaic device 7 is electrically connected with the storage battery 8 through the inverter 9, the storage battery 8 is electrically connected with the anode part 4 and the cathode part 5 through the automatic controller 10, the positive electrode of the storage battery 8 is correspondingly connected with the anode part 4, the negative electrode of the storage battery 8 is correspondingly connected with the cathode part 5, the power supply system 6 further comprises a direct current power supply 11, the direct current power supply 11 is electrically connected with the anode part 4 and the cathode part 5 through the automatic controller 10, the positive electrode of the direct current power supply 11 is correspondingly connected with the anode part 4, and the negative electrode of the direct current power supply 11 is correspondingly connected with the cathode part 5.
The power supply system 6 supplies power to the anode part 4 and the cathode part 5, the automatic controller 10 realizes automatic control operation, a solar power supply system is constructed through the photovoltaic device 7, the storage battery 8, the inverter 9 and the automatic controller 10, the energy is saved, the environment is protected, the physicochemical properties of refractory organic matters are considered, the system analysis and the energy balance are carried out on the reaction system, the device debugging and the optimization are carried out by combining the local latitude, the illumination, the climate and the conversion efficiency of photovoltaic power generation, and the low concentration and the high toxicity in water are safely, efficiently and economically eliminated.
The embodiment 3 of the utility model relates to a self-maintaining electro-Fenton coupling biological membrane sewage treatment system, which comprises a cooperative treatment tank 1, wherein an aeration device 2 is paved at the bottom of a tank body of the cooperative treatment tank 1, a filler module 3 is arranged in the tank body of the cooperative treatment tank 1, the filler module 3 is arranged above the aeration device 2, an anode part 4 and a cathode part 5 are respectively arranged at two sides of the filler module 3 in the tank body of the cooperative treatment tank 1, the anode part 4 and the cathode part 5 are electrically connected with a power supply system 6, the cathode part 5 is a Cu-C3N4 electrode, and the anode part 4 is a graphene electrode.
The aeration device 2 positioned below the filler module 3 in the synergistic treatment tank 1 is used for aeration, the aeration rate is adjusted according to the concentration of pollutants, O 2 is under the action of electric energy, water in the catalytic electrode is converted into H 2O2,H2O2 to generate OH under the catalytic action of the electrode, and the OH can mineralize and degrade the organic pollutants difficult to degrade, so that deep removal is realized.
The water quality control device comprises a water quality control device, a water quality control device and a reaction system, and is characterized by further comprising an adjusting tank 12, wherein the adjusting tank 12 is arranged at the front end of the synergistic treatment tank 1, a pH detection device 13, an automatic dosing device 14 and a stirring device 15 are arranged in the adjusting tank 12, the adjusting tank 12 is used for performing water quality control so as to meet required proper pH conditions, the pH range is 2-5, the pH detection device is used for detecting the pH value of sewage, the automatic dosing device pumps acid and alkali solution under the stirring of the stirring device according to the monitoring number to perform pH control, the water quality control device further comprises a water inlet buffer tank 16, and the water inlet buffer tank 16 is arranged at the front end of the adjusting tank 12 and is used for discharging organic wastewater generated in a certain period into the water inlet buffer tank 16 to be fully mixed so as to reduce the impact of the water quality and water quantity to the reaction system.
The embodiment 4 of the utility model relates to a self-maintenance electro-Fenton coupling biological membrane sewage treatment system, which comprises a cooperative treatment tank 1, wherein an aeration device 2 is paved at the bottom of a tank body of the cooperative treatment tank 1, a filler module 3 is arranged in the tank body of the cooperative treatment tank 1, the filler module 3 adopts iron-carbon electrolysis filler, the filler module 3 is arranged above the aeration device 2, an anode part 4 and a cathode part 5 are respectively arranged at two sides of the filler module 3 in the tank body of the cooperative treatment tank 1, and the anode part 4 and the cathode part 5 are electrically connected with a power supply system 6.
The aeration device 2 positioned below the filler module 3 in the synergistic treatment tank 1 is used for aeration, the aeration rate is adjusted according to the concentration of pollutants, O 2 is under the action of electric energy, water in the catalytic electrode is converted into H 2O2,H2O2 to generate OH under the catalytic action of the electrode, and the OH can mineralize and degrade the organic pollutants difficult to degrade, so that deep removal is realized.
The power supply system 6 comprises a photovoltaic device 7, a storage battery 8, an inverter 9 and an automatic controller 10, wherein the photovoltaic device 7 is electrically connected with the storage battery 8 through the inverter 9, the storage battery 8 is electrically connected with the anode part 4 and the cathode part 5 through the automatic controller 10, the positive electrode of the storage battery 8 is correspondingly connected with the anode part 4, the negative electrode of the storage battery 8 is correspondingly connected with the cathode part 5, the power supply system 6 further comprises a direct current power supply 11, the direct current power supply 11 is electrically connected with the anode part 4 and the cathode part 5 through the automatic controller 10, the positive electrode of the direct current power supply 11 is correspondingly connected with the anode part 4, and the negative electrode of the direct current power supply 11 is correspondingly connected with the cathode part 5.
The power supply system 6 supplies power to the anode part 4 and the cathode part 5, the automatic controller 10 realizes automatic control operation, a solar power supply system is constructed through the photovoltaic device 7, the storage battery 8, the inverter 9 and the automatic controller 10, the energy is saved, the environment is protected, the physicochemical properties of refractory organic matters are considered, the system analysis and the energy balance are carried out on the reaction system, the device debugging and the optimization are carried out by combining the local latitude, the illumination, the climate and the conversion efficiency of photovoltaic power generation, and the low concentration and the high toxicity in water are safely, efficiently and economically eliminated.
The water quality control device comprises a water quality control device, a water quality control device and a reaction system, and is characterized by further comprising an adjusting tank 12, wherein the adjusting tank 12 is arranged at the front end of the synergistic treatment tank 1, a pH detection device 13, an automatic dosing device 14 and a stirring device 15 are arranged in the adjusting tank 12, the adjusting tank 12 is used for performing water quality control so as to meet required proper pH conditions, the pH range is 2-5, the pH detection device is used for detecting the pH value of sewage, the automatic dosing device pumps acid and alkali solution under the stirring of the stirring device according to the monitoring number to perform pH control, the water quality control device further comprises a water inlet buffer tank 16, and the water inlet buffer tank 16 is arranged at the front end of the adjusting tank 12 and is used for discharging organic wastewater generated in a certain period into the water inlet buffer tank 16 to be fully mixed so as to reduce the impact of the water quality and water quantity to the reaction system.
The utility model adopts the working principle that when the device is used, organic wastewater generated in a certain period of time is discharged into a water inlet buffer tank 16 to be fully mixed so as to reduce the impact of water quality and water quantity impact on a reaction system, the wastewater in the water inlet buffer tank 16 enters an adjusting tank 12 and is subjected to pH adjustment so as to meet the proper pH condition required by an electro-Fenton reaction, the pH range of the adjusted wastewater is 2-5, the adjusted wastewater enters a synergistic treatment tank 1, the anode part 4 and the cathode part 5 are powered by a photovoltaic power generation technology, an iron-carbon electrolytic filler module 3 is arranged in the synergistic treatment tank 1, aeration is carried out by an aeration device 2, the aeration rate is adjusted according to the concentration of pollutants, O 2 is converted into H 2O2,H2O2 under the action of electric energy, and the H 2O2,H2O2 generates OH under the action of catalysis of the electrode, and the OH can mineralize and degrade refractory organic pollutants to realize deep removal.