CN112340900A - Particle electrode sewage treatment equipment and sewage treatment method using same - Google Patents
Particle electrode sewage treatment equipment and sewage treatment method using same Download PDFInfo
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- CN112340900A CN112340900A CN202011231232.XA CN202011231232A CN112340900A CN 112340900 A CN112340900 A CN 112340900A CN 202011231232 A CN202011231232 A CN 202011231232A CN 112340900 A CN112340900 A CN 112340900A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F1/46114—Electrodes in particulate form or with conductive and/or non conductive particles between them
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F2001/46119—Cleaning the electrodes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
Abstract
The invention relates to a particle electrode sewage treatment device, which comprises two particle electrode adsorption and filtration systems and an adsorbent regeneration system, wherein each particle electrode adsorption and filtration system comprises a water inlet pump, a particle electrode adsorption tank and a filtration device which are sequentially communicated through a pipeline; the adsorbent regeneration system comprises a pressure water pump, an oxygen dissolving tank and a three-dimensional electrolytic cell which are sequentially communicated through a pipeline, wherein a feed inlet of the pressure water pump is communicated with outlets of the two particle electrodes through the pipeline respectively, a feed inlet of the pressure water pump is connected with an oxygen inlet pipe simultaneously, a discharge outlet of the three-dimensional electrolytic cell is communicated with the two ion electrode adsorption tanks through the pipeline respectively, and valves are arranged on the communicated pipelines. The invention is used for treating sewage, the number of hydroxyl free radicals is increased, the space distance between the particle electrode and pollutants is reduced, and the two particle electrode adsorption and filtration systems alternately adsorb, thereby improving the sewage treatment efficiency.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a particle electrode sewage treatment device and a sewage treatment method using the same.
Background
The method for treating sewage is various, such as a physical method, a chemical method, a biological method and a combined use technology, and the adsorption technology in the physical method is widely applied to the treatment of wastewater in industrial production and the like due to the advantages of simple operation, easy obtainment of an adsorbent, excellent removal effect, low investment and the like, has great economic benefit, and plays a positive role in the development of enterprises and environmental protection.
Although the adsorbent has a wide application range in water treatment due to its strong adsorbability, its application is limited due to the difficulty of regeneration. Although various regeneration methods such as equilibrium exchange regeneration, microbial regeneration, oxidative decomposition regeneration, supercritical regeneration, ultrasonic regeneration, and microwave regeneration have been studied in large numbers, almost only conventional thermal regeneration and a small amount of microbial regeneration are actually used at present. The regeneration cost is high, and the limitation in practical application is large.
Electrochemical regeneration is also one of the subjects of adsorbent regeneration technology. In the general method, an adsorbent is filled between two main electrodes, a direct current electric field is applied to an electrolyte, the adsorbent is polarized under the action of the electric field, one end of the adsorbent forms an anode, the other end of the adsorbent forms a cathode, a micro-electrolysis cell is formed, reduction reaction and oxidation reaction can respectively occur at the cathode part and the anode part of the adsorbent, most of pollutants adsorbed on the adsorbent are decomposed accordingly, and a small part of pollutants are desorbed due to the action of electrophoresis force. The method has the advantages of convenient operation, high efficiency, wide adaptability of the treated object and capability of avoiding secondary pollution.
However, the existing adsorption method for treating sewage has high comprehensive cost and is difficult to be widely applied, and the method for electrochemically regenerating the adsorbent has many advantages, and is difficult to popularize and apply due to long treatment time, usually 2-6 hours, and high energy consumption.
Disclosure of Invention
The invention provides a particle electrode sewage treatment device and a sewage treatment method using the same for solving the technical problems, which can perform the adsorption of pollutants and the regeneration process of an adsorbent step by step, and improve the sewage treatment efficiency by adopting two particle electrode adsorption filtration systems to alternately perform pollutant adsorption.
The technical scheme for solving the technical problems is as follows: a particle electrode sewage treatment device comprises two particle electrode adsorption and filtration systems and an adsorbent regeneration system, wherein a water inlet of a water inlet pump is communicated with a sewage inlet pipe, a particle electrode is arranged in each particle electrode adsorption tank, the particle electrodes have an adsorption function and can flow into a filtration device together with sewage, and a treated water outlet and a particle electrode outlet are arranged on the filtration device; the adsorbent regeneration system comprises a pressure water pump, an oxygen dissolving tank and a three-dimensional electrolytic tank which are sequentially communicated through pipelines, a feed inlet of the pressure water pump is respectively communicated with particle electrode outlets of the two filtering devices through pipelines, the particle electrodes can flow into the adsorbent regeneration system from the filtering tank through the pressure water pump, the feed inlet of the pressure water pump is simultaneously connected with an oxygen inlet pipe and communicated with the oxygen inlet pipe, an anode plate and a cathode plate are arranged in the three-dimensional electrolytic tank, the cathode plate, the anode plate and the particle electrodes flowing to the three-dimensional electrolytic tank form a three-dimensional system, and a discharge outlet of the three-dimensional electrolytic tank is respectively communicated with the two ion electrode adsorption tanks through pipelines; and valves are arranged on the communication pipelines.
The invention has the beneficial effects that: the particle electrode sewage treatment equipment adopts the particle electrode with the adsorption function, the particle electrode can adsorb organic matters and heavy metal ions in sewage, and in the three-dimensional electrolysis process, the generated oxidant such as active chlorine, hydrogen peroxide and particularly hydroxyl free radicals can oxidize the adsorbed organic matters at a short distance without diffusing into the solution, so that the waste of the oxidant and particularly the hydroxyl free radicals is avoided. Meanwhile, in the process of regenerating the particle electrode, oxygen is supplied to the particle electrode in a dissolved oxygen mode, so that the yield of hydrogen peroxide and hydroxyl radicals can be improved to the maximum extent, and the yield of the oxidant is improved. And the regenerated particle electrode adsorbent is in closed circulation, and the oxidant generated by electrolysis cannot be lost, so that the aims of improving the regeneration efficiency and reducing the treatment energy consumption are fulfilled. In addition, the invention adopts two particle electrode adsorption filtration systems and an adsorbent regeneration system, wherein after one particle electrode adsorption filtration system is adsorbed and saturated, when the adsorbent regeneration system is used for regenerating the adsorbent, the other particle electrode adsorption filtration system is started, so that the sewage treatment can continuously work, and the sewage treatment efficiency is improved.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, the particle size of the particle electrode is 100 to 300 μm.
The particle electrode adopting the further scheme has the advantages that the small-size particle electrode with the adsorption function can improve the electrolysis area per unit volume and reduce the cost of production equipment.
Further, the particle electrode is formed by mixing one or more of activated carbon fiber, activated carbon powder, diatomite, montmorillonite, bentonite and a modified substance of any one of the substances.
Further, a stirring device is arranged in the particle electrode adsorption pool.
The beneficial effect who adopts above-mentioned further scheme is thereby making sewage and particle electrode mix through agitating unit and make the pollutant in the more efficient adsorption sewage of particle electrode.
Further, the filtering device is a filtering tank.
The beneficial effects of adopting the above further scheme are that simple structure, with low costs, the handling capacity is big.
Further, any one of a honeycomb inclined plate, an MBR hollow fiber membrane or an MBR flat membrane is arranged in the separation tank.
The invention also provides a sewage treatment method, which uses the particle electrode sewage treatment equipment to treat sewage and comprises the following steps:
s1, selecting one of the particle electrode adsorption and filtration systems to be started, closing a valve between the particle electrode adsorption and filtration system and an adsorbent regeneration system, placing the particle electrodes in a particle electrode adsorption tank, introducing sewage into the particle electrode adsorption tank through a water inlet pump to enable the particle electrodes to adsorb pollutants in the sewage, then discharging the pollutants into a filtration device to carry out solid-liquid separation to obtain treated water and the particle electrodes adsorbing the pollutants, and recycling or discharging the treated water;
s2, closing the particle electrode adsorption system in the step S1, opening a valve between the particle electrode adsorption system and an adsorbent regeneration system, simultaneously opening a valve between the three-dimensional electrolytic tank and the particle electrode adsorption tank in the step S1, opening the adsorbent regeneration system to enable the particle electrodes adsorbing pollutants to enter the adsorbent regeneration system, regenerating the adsorbent, simultaneously opening another particle electrode adsorption filtration system and repeating the step S1;
s3, repeating the steps S1 and S2.
Further, the adsorption time of the sewage in the particle electrode pool is 30-60 min.
Further, the oxygen is introduced in the regeneration process of the adsorbent, so that a milky water sample appears in the three-dimensional electrolytic cell.
Drawings
FIG. 1 is a schematic view showing the structure of a particle electrode sewage treatment apparatus according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the device comprises a particle electrode adsorption and filtration system, 11, a water inlet pump, 12, a particle electrode adsorption pool, 13, a filtration device, 14, a treated water outlet, 15, a particle electrode outlet, 2, an adsorbent regeneration system, 21, a pressure water pump, 22, a dissolved oxygen tank, 23, a three-dimensional electrolytic tank, 24, an oxygen inlet pipe, 3 and a particle electrode.
Detailed Description
The principles and features of this invention are described in connection with the drawings and the detailed description of the invention, which are set forth below as examples to illustrate the invention and not to limit the scope of the invention.
As shown in fig. 1, the present invention provides a particle electrode sewage treatment apparatus, which comprises two particle electrode adsorption filtration systems 1 and an adsorbent regeneration system 2, wherein a water inlet of a water inlet pump 11 is communicated with a sewage inlet pipe, a particle electrode 3 is arranged in each particle electrode adsorption tank 12, the particle electrode 3 has an adsorption function, and can flow into a filtration device 13 together with sewage, and a treated water outlet 14 and a particle electrode outlet 15 are arranged on the filtration device 13; the adsorbent regeneration system 2 comprises a pressure water pump 21, an oxygen dissolving tank 22 and a three-dimensional electrolytic tank 23 which are sequentially communicated through pipelines, feed inlets of the pressure water pump 21 are respectively communicated with particle electrode outlets 15 of the two filtering devices 13 through pipelines, the particle electrodes 3 can flow into the adsorbent regeneration system 2 from the filtering tanks through the pressure water pump 21, the feed inlets of the pressure water pump 21 are simultaneously connected with and communicated with an oxygen inlet pipe 24, an anode plate and a cathode plate are arranged in the three-dimensional electrolytic tank 23, the cathode plate, the anode plate and the particle electrodes 3 flowing to the three-dimensional electrolytic tank 23 form a three-dimensional electrolytic system, and discharge outlets of the three-dimensional electrolytic tank 23 are respectively communicated with the two ion electrode adsorption tanks through pipelines; and valves are arranged on the communication pipelines.
The anode plate of the three-dimensional electrolytic tank 23 is a titanium-based ruthenium-iridium plated electrode, the cathode plate is a titanium-based electrode or a titanium-based ruthenium-iridium plated electrode, the distance between the electrodes is set to be 8-20 mm, and the direct-current power supply is 0-15V, so that the service life of the electrodes is ensured.
Preferably, the particle electrode 3 has a particle size of 100 to 300 μm. The small-sized particle electrode 3 with the adsorption function can increase the electrolysis area per unit volume and reduce the cost of production equipment.
Preferably, the particle electrode 3 is formed by mixing one or more of activated carbon fiber, activated carbon powder, diatomite, montmorillonite, bentonite and modified substances of any one of the above substances.
Preferably, a stirring device is arranged in the particle electrode adsorption tank 12, the stirring device may be a mechanical stirring mechanism or an aeration pipe, the aeration pipe is arranged at the bottom of the particle electrode adsorption tank 12, and an air outlet of the aeration pipe is communicated with the particle electrode adsorption tank 12. Compressed air is introduced into the particle electrode adsorption tank 12 through the aeration pipe, and sewage is mixed with the particle electrodes 3 in a stirring mode, so that the particle electrodes 3 can adsorb pollutants in the sewage more efficiently.
Preferably, any one of a honeycomb inclined plate, an MBR hollow fiber membrane or an MBR flat membrane is arranged in the separation tank.
The particle electrode sewage treatment equipment selects the particle electrode 3 with the adsorption function, the particle electrode 3 can adsorb organic matters and heavy metal ions in sewage, and in the three-dimensional electrolysis process, the generated oxidant such as active chlorine, hydrogen peroxide and particularly hydroxyl free radicals can oxidize the adsorbed organic matters in a short distance without being diffused into a solution, so that the waste of the oxidant and particularly the hydroxyl free radicals is avoided. Meanwhile, in the regeneration process of the particle electrode 3, oxygen is supplied to the particle electrode 3 in a dissolved oxygen mode, so that the yield of hydrogen peroxide and hydroxyl radicals can be improved to the maximum extent, and the yield of the oxidant is improved. And the regenerated particle electrode 3 adsorbent is in closed circulation, and the oxidant generated by electrolysis cannot be lost, so that the aims of improving the regeneration efficiency and reducing the treatment energy consumption are fulfilled. In addition, the invention adopts two particle electrode adsorption filtration systems 1 and one adsorbent regeneration system 2, wherein after one particle electrode adsorption filtration system 1 is adsorbed and saturated, when the adsorbent regeneration system 2 is used for regenerating the adsorbent, the other particle electrode adsorption filtration system 1 is started, so that the sewage treatment can continuously work, and the sewage treatment efficiency is improved.
The invention also provides a sewage treatment method, which uses the particle electrode sewage treatment equipment to treat sewage and comprises the following steps:
s1, selecting one of the particle electrode adsorption and filtration systems 1 to be opened, closing a valve between the particle electrode adsorption and filtration system 1 and an adsorbent regeneration system 2, placing a particle electrode 3 in a particle electrode adsorption tank 12, introducing sewage into the particle electrode adsorption tank 12 through a water inlet pump 11, enabling the particle electrode 3 to adsorb pollutants in the sewage, then discharging the pollutant into a filtration device 13 to carry out solid-liquid separation, obtaining treated water and the particle electrode 3 adsorbing the pollutants, and recycling or discharging the treated water;
s2, closing the particle electrode 3 adsorption system in the step S1, opening a valve between the particle electrode 3 adsorption system and an adsorbent regeneration system 2, simultaneously opening a valve between the three-dimensional electrolytic tank 23 and the particle electrode adsorption tank 12 in the step S1, opening the adsorbent regeneration system 2 to enable the particle electrode 3 adsorbing pollutants to enter the adsorbent regeneration system 2, regenerating the adsorbent, simultaneously opening another particle electrode adsorption filtration system 1 and repeating the step S1;
s3, repeating the steps S1 and S2.
Preferably, the adsorption time of the sewage in the particle electrode 3 pool is 30-60 min.
Preferably, the oxygen is introduced in the regeneration process of the adsorbent in an amount which causes the three-dimensional electrolytic cell 23 to generate milky water samples.
The specific working steps are as follows:
1) opening a valve 1-1-1 and a valve 1-1-2, closing the valves 1-1-3 and 1-1-4, opening a particle electrode adsorption filtration system 1 where the valves 1-1-1 and 1-1-2 are located, placing a particle electrode 3 in a particle electrode adsorption tank 12, opening a water inlet pump 11, discharging sewage into the particle electrode adsorption tank 12 where the particle electrode 3 is placed, adsorbing for 30-60 min, flowing a mixed liquid of the particle electrode 3 and the sewage after adsorbing pollutants into a filtration device 13 for solid-liquid separation, discharging treated water through a treated water outlet 14, and closing the water inlet pump 11 and the valves 1-1-1 and 1-1-2 after adsorption saturation;
2) opening valves 1-1-3 and 1-1-4, starting an adsorbent regeneration system 2, starting a pressure water pump 21, adjusting an oxygen inlet valve to control the oxygen gas inflow until a milky water sample appears in a three-dimensional electrolytic cell 23, starting a power supply of the three-dimensional electrolytic cell 23 to perform regeneration treatment of the adsorption function of the particle electrode 3, allowing the regenerated particle electrode 3 to flow into the particle electrode adsorption tank 12 in the step 1, and after the treatment is finished, sequentially closing the power supply of the three-dimensional electrolytic cell 23, the valve on an oxygen inlet pipe 24 and the valves 1-1-3 and 1-1-4;
3) and 2) opening valves 1-2-1 and 1-2-2 while performing the step 2), closing valves 1-2-3 and 1-2-4, opening the particle electrode adsorption filtration system 1 where the valves 1-2-1 and 1-2-2 are located, placing the particle electrode 3 in a particle electrode adsorption tank 12, opening a water inlet pump 11, discharging sewage into the particle electrode adsorption tank 12 where the particle electrode 3 is placed, adsorbing for 30-60 min, flowing a mixed solution of the particle electrode 3 and the sewage after adsorbing pollutants into a filtration device 13 for solid-liquid separation, discharging treated water through a treated water outlet 14, and closing the water inlet pump 11 and the valves 1-2-1 and 1-2-2 after saturated adsorption.
4) After the regeneration of the particle electrode 3 in the step 2) is completed and the adsorption of the particle electrode 3 in the step 3) is completed, the particle electrode 3 in the step 3 is regenerated, specifically: opening valves 1-2-3 and 1-2-4, starting the adsorbent regeneration system 2, starting the pressure water pump 21, adjusting the air inlet valve of oxygen to control the air inlet amount of oxygen until the three-dimensional electrolytic tank 23 generates a milky water sample, starting the power supply of the three-dimensional electrolytic tank 23 to perform regeneration treatment of the adsorption function of the particle electrode 3, enabling the regenerated particle electrode 3 to flow into the particle electrode adsorption tank 12 in the step 3, and after the treatment is finished, sequentially closing the power supply of the three-dimensional electrolytic tank 23, the valve on the oxygen inlet pipe 24 and the valves 1-2-3 and 1-2-4.
5) Repeating the above steps 1) to 4).
After one particle electrode adsorption filtration system 1 is saturated in adsorption, when the adsorbent regeneration system 2 is used for regenerating the adsorbent, the other particle electrode adsorption filtration system 1 is started, and the method is used for sewage treatment, so that the sewage treatment can work continuously, the sewage treatment efficiency is improved, and the energy consumption of the sewage treatment is saved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. The particle electrode sewage treatment equipment is characterized by comprising two particle electrode adsorption and filtration systems (1) and an adsorbent regeneration system (2);
the particle electrode adsorption filtration system (1) comprises a water inlet pump (11), particle electrode adsorption tanks (12) and a filtration device (13) which are sequentially communicated through a pipeline, a water inlet of the water inlet pump (11) is communicated with a sewage inlet pipe, a particle electrode (3) is arranged in each particle electrode adsorption tank (12), the particle electrodes (3) have an adsorption function and can flow into the filtration device (13) together with sewage, and a treated water outlet (14) and a particle electrode outlet (15) are arranged on the filtration device (13);
the adsorbent regeneration system (2) comprises a pressure water pump (21), an oxygen dissolving tank (22) and a three-dimensional electrolytic tank (23) which are sequentially communicated through pipelines, the feed inlets of the pressure water pump (21) are respectively communicated with particle electrode outlets (15) of the two filtering devices (13) through pipelines, the particle electrode (3) can flow into an adsorbent regeneration system (2) from the filter tank through the pressure water pump (21), the feed inlet of the pressure water pump (21) is simultaneously connected with an oxygen inlet pipe (24) and communicated with the oxygen inlet pipe, an anode plate and a cathode plate are arranged in the three-dimensional electrolytic tank (23), the cathode plate, the anode plate and the particle electrode (3) flowing to the three-dimensional electrolytic tank (23) form a three-dimensional electrolytic system, the discharge hole of the three-dimensional electrolytic tank (23) is respectively communicated with the two ion electrode adsorption tanks through pipelines;
and valves are arranged on the communication pipelines.
2. The particle electrode sewage treatment apparatus according to claim 1, wherein the particle size of the particle electrode (3) is 100 to 300 μm.
3. The particle electrode sewage treatment equipment according to claim 2, wherein the particle electrode (3) is formed by mixing one or more of activated carbon fiber, activated carbon powder, diatomite, montmorillonite, bentonite and modified substances of any one of the above substances.
4. The particle electrode sewage treatment apparatus according to claim 1, wherein a stirring device is provided in said particle electrode adsorption tank (12).
5. The particle electrode wastewater treatment apparatus according to claim 1, wherein the filtering device (13) is a filtering tank.
6. The particle electrode sewage treatment apparatus of claim 5, wherein any one of a honeycomb inclined plate, an MBR hollow fiber membrane or an MBR flat sheet membrane is provided in the separation tank.
7. A sewage treatment method for treating sewage using the particle electrode sewage treatment apparatus according to any one of claims 1 to 6, comprising the steps of:
s1, one of the particle electrode adsorption and filtration systems (1) is selected to be opened, a valve between the particle electrode adsorption and filtration system (1) and an adsorbent regeneration system (2) is closed, the particle electrodes (3) are placed in a particle electrode adsorption tank (12), sewage is introduced into the particle electrode adsorption tank (12) through a water inlet pump (11), so that the particle electrodes (3) adsorb pollutants in the sewage, then the pollutants are discharged into a filtration device (13) to be subjected to solid-liquid separation, the particle electrodes (3) after the treated water and the adsorbed pollutants are obtained, and the treated water is recycled or discharged;
s2, closing the particle electrode (3) adsorption system in the step S1, opening a valve between the particle electrode adsorption system and an adsorbent regeneration system (2), simultaneously opening a valve between the three-dimensional electrolytic tank (23) and the particle electrode adsorption tank (12) in the step S1, opening the adsorbent regeneration system (2) to enable the particle electrode (3) adsorbing pollutants to enter the adsorbent regeneration system (2), regenerating the adsorbent, simultaneously opening another particle electrode adsorption filtration system (1) and repeating the step S1;
s3, repeating the steps S1 and S2.
8. The wastewater treatment method according to claim 7, wherein the adsorption time of wastewater in the particle electrode (3) pool is 30-60 min.
9. The wastewater treatment method according to claim 7, wherein the oxygen is introduced in an amount to make the three-dimensional electrolytic cell (23) show milky water samples during the regeneration of the adsorbent.
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| CN202011231232.XA CN112340900A (en) | 2020-11-06 | 2020-11-06 | Particle electrode sewage treatment equipment and sewage treatment method using same |
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| CN202011231232.XA CN112340900A (en) | 2020-11-06 | 2020-11-06 | Particle electrode sewage treatment equipment and sewage treatment method using same |
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