CN115231746A

CN115231746A - Combined Fenton method is assisted with ceramic film filtration sewage treatment ware

Info

Publication number: CN115231746A
Application number: CN202210822296.XA
Authority: CN
Inventors: 梁维安
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2022-10-25

Abstract

The combined Fenton method is assisted by a ceramic film filtering sewage processor and comprises an electrode area, a Fenton advanced oxidation treatment area and an equipment control area; the electrode area is connected with a first water inlet pipe and then connected with one end of a first three-way electromagnetic valve, and the other two ports of the first three-way electromagnetic valve are respectively connected with a sludge pipe and a second water inlet pipe; the equipment control area is provided with a ceramic membrane filter assembly, a system control box and an ozone making machine, the ceramic membrane filter assembly is provided with a membrane filter and a safety filter, the center position of the top of the Fenton advanced oxidation treatment area is provided with a water passing disc, the bottom end of the Fenton advanced oxidation treatment area is provided with a mud valve, the water passing disc is connected with a middle rotating disc, and the top of the Fenton advanced oxidation treatment area is also provided with a skimmer; the invention can greatly reduce the occupied space of sewage treatment equipment, can control most of system operation through the system control box, realizes an automatic treatment process, and reduces manpower for system management.

Description

Combined Fenton method is assisted with ceramic film filtration sewage treatment ware

Technical Field

The invention relates to the technical field of sewage treatment, in particular to a sewage treatment device with a ceramic film filtration assisted by a composite Fenton method.

Background

The garbage penetrating fluid refers to water from garbage during garbage transportation, and flows out of garbage piles through accumulation and extrusion, high-concentration organic matters and sewage with complex water quality, and the traditional garbage penetrating fluid treatment process faces various problems. The conventional sewage treatment plant occupies a large space area and requires long-term management of human resources due to the application of a large amount of chemicals.

The general sewage treatment process usually uses primary treatment and secondary biological treatment, i.e. the sewage is firstly subjected to primary physical treatment, such as removing large solids by using a grid, removing heavier solids in the water by physical precipitation, scraping oil on the surface of the sewage and the like; then the sewage enters a secondary treatment, and the high-concentration COD in the sewage is reduced mainly by biological treatment, such as anaerobic biological treatment and aerobic biological treatment. In order to reach higher discharge standard, the three-stage advanced treatment can also be used for further reducing organic matters and suspended solids in the sewage, for example, membrane filtration, activated carbon adsorption, ion exchange and the like are utilized, and the treated sewage can be directly discharged to nearby water bodies or reused.

However, the water quality of the garbage penetrating fluid is complex and relatively large in change, pollutants and heavy metals which are not biodegradable can be stored, the primary treatment and the secondary biological treatment cannot provide effective treatment and meet related emission requirements, and the secondary biological treatment process needs relatively long time and can be influenced in various aspects such as water quality, temperature and the like, so that the quality of the outlet water of high-change sewage is relatively unstable, large space is needed for placing treatment equipment and storing sewage, and the consumption of quite huge resources in the traditional sewage treatment process can be seen.

In addition, the requirements for water quality regulation and discharge are higher at present, in addition to the increase of population and land demand, the amount of generated sewage is also greatly increased, and therefore, the traditional treatment technology does not necessarily meet the requirements of all countries and regions. In order to meet the current requirements, the sewage treatment process is continuously improved, for example, the existing garbage penetrating fluid treatment plant can add a membrane filtration technology after secondary biological treatment, thereby further reducing the concentration of pollutants; the Fenton oxidation method is also selected for research to directly treat the garbage penetrating fluid.

The fenton oxidation method is a very efficient and suitable method for treating sewage, ferrous ions and hydrogen peroxide which are used as catalysts are used and react to generate hydroxyl radicals and hydroxide ions, and the hydroxyl radicals have extremely strong oxidizing capacity and decompose pollutants in water through oxidation reaction, so that the concentration of the pollutants is reduced, and the pollutants can reach the emission standard. The fenton oxidation method can be divided into conventional fenton, electro-fenton, photo-fenton, sonic-fenton and fenton-like treatments. Compared with the traditional treatment, the Fenton treatment process is relatively stable and has shorter reaction time, and is also suitable for the operation of a treatment plant with smaller space.

The utility model discloses a catalytic ozonation-Fenton reaction integrated wastewater processor, which is disclosed in the utility model with the publication number of CN216038974U in the prior art, and comprises a reaction kettle, an ozone inlet pipe, a sewage pump, an ejector, an ozone generator and a dosing device; this treater can make catalysis ozonization reaction and fenton reaction take place in same reation kettle, and the coprocessing sewage makes equipment have high-efficient ozone utilization, promotes ozone mass transfer efficiency, prevents filler hardening segmentation, promotes advantages such as fenton reaction efficiency, but does not combine the filterable effect of ceramic film, can appear after long-term the use filtering thoroughly, or can't adapt to other polluted water quality.

The invention patent with publication number CN113713624A in the prior art discloses a double-ceramic-membrane integrated device for sewage treatment and a pressure fault judgment method, which comprise a nano ceramic membrane biological filter tower, a first inorganic ceramic membrane filter, a second inorganic ceramic membrane filter, a filter pump, a circulating pump, an online pressure sensor, a disinfection device and a control device, can greatly reduce the occupied area of a project, does not need to carry out system dosing in the process of the project operation, effectively avoids secondary pollution, provides effective guarantee for low-cost, maintenance-free and high-quality water outlet of the sewage treatment project due to the use of double-ceramic-membrane combination, but does not adopt a Fenton oxidation method to treat garbage penetrating fluid and lacks the treatment capacity of the garbage penetrating fluid.

In conclusion, the traditional treatment process needs long time, the treatment equipment needs large area, and the effluent quality is relatively unstable when complex and variable sewage is treated; in order to meet the current environmental demands, the development of novel sewage treatment equipment is urgent.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a combined Fenton method assisted with a ceramic film filtering sewage treatment device, so that the occupied space of sewage treatment equipment is greatly reduced, most of system operation can be controlled through a system control box, the automatic treatment process is realized, and the manpower is reduced for carrying out system management. In order to achieve the purpose, the invention is realized by the following technical scheme:

the composite Fenton method is assisted by a ceramic film filtering sewage processor and comprises an electrode area and a Fenton advanced oxidation treatment area which is arranged close to the electrode area; the electrode area is connected with a first water inlet pipe, the first water inlet pipe is connected with one end of a first three-way electromagnetic valve, the other two ports of the first three-way electromagnetic valve are respectively connected with a sludge pipe and a second water inlet pipe, and an ozone sewage mixing pump and a first acid-base injection port are arranged on the second water inlet pipe; the bottom of the electrode area is provided with an ultrasonic generator, and an electrode plate assembly is arranged in the electrode area; the sewage treatment device also comprises an equipment control area, wherein the equipment control area is provided with a ceramic film filter assembly, a system control box, an ozone making machine and a liquid medicine bucket, and the middle part of the equipment control area is provided with a high-frequency pulse power supply and an ultrasonic generator power supply; the ceramic membrane filter assembly is provided with a membrane filter and a security filter, the water inlet end of the security filter is connected with the middle rotary table through a conveying pipe, a second three-way electromagnetic valve, a filter pump and a third three-way electromagnetic valve are sequentially connected onto the conveying pipe, the other end of the second three-way electromagnetic valve is connected with a backflushing liquid medicine bucket, the filter pump is arranged between the second three-way electromagnetic valve and the third three-way electromagnetic valve, the other end of the third three-way electromagnetic valve is connected with a backflushing pipe, the water outlet end of the security filter is connected with the water inlet end of the membrane filter through a pipeline, and a filtrate discharge pipe on the membrane filter is connected with the backflushing pipe; a water passing disc is arranged at the center of the top of the Fenton advanced oxidation treatment area, a mud valve is arranged at the bottom end of the Fenton advanced oxidation treatment area, the water passing disc is connected with a middle rotary disc, a second acid-base injection port is arranged at the top of the middle rotary disc, a water outlet of the middle rotary disc is connected with a conveying pipe, and the conveying pipe is connected with a ceramic membrane filter assembly; the top of the Fenton advanced oxidation treatment area is also provided with a skimmer, the skimmer comprises a speed reducer and an opening cylinder, the opening cylinder is connected with a scum discharge port, and a spiral sheet is arranged in the opening cylinder;

the liquid medicine barrel comprises a hydrogen peroxide liquid medicine barrel, a backflushing liquid medicine barrel, a sulfuric acid liquid medicine barrel and a sodium hydroxide liquid medicine barrel; the hydrogen peroxide liquid medicine bucket is connected with the ozone sewage mixing pump through the injection pipe, the sulphuric acid liquid medicine bucket and the sodium hydroxide liquid medicine bucket are connected with the first acid-base injection port and the second acid-base injection port respectively through the injection pipe.

Preferably, the liquid medicine bucket is arranged on the opposite side of the ceramic membrane filter assembly, the system control box and the ozone making machine, the ozone making machine is connected with the ozone sewage mixing pump, the high-frequency pulse power supply is electrically connected with the electrode plate assembly, and the ultrasonic generator power supply is electrically connected with the ultrasonic generator.

Preferably, the upper part of the electrode area is of a hollow rectangular column structure, and the bottom of the electrode area is of an inverted hollow rectangular cone structure; the upper part of the Fenton advanced oxidation treatment area is of a cylinder structure with an opening at the top end, and the bottom of the Fenton advanced oxidation treatment area is of a conical funnel structure; the middle rotary table is of a hollow square column structure; be equipped with fast blade of mixing in the second oral siphon, still be equipped with first 90 elbows, second 90 elbows and third 90 elbows on the second oral siphon, first acid-base injection mouth sets up on first 90 elbows, ozone sewage mixing pump sets up between second 90 elbows and third 90 elbows, the second oral siphon is connected with outside income water delivery pump.

Preferably, the top end of the electrode plate assembly is connected with a high-frequency pulse power supply through a copper strip, the electrode plate assembly is a replaceable assembly, the electrode plate material of the electrode plate assembly is one of iron, titanium or graphite, two adjacent electrode plates of the electrode plate assembly are separated through an insulator, the insulator is nylon or epoxy resin, and the current interval provided by the high-frequency pulse power supply is 0-1000A.

Preferably, the water passing tray is further provided with an acid-base monitor and a liquid level sensor which are fixed through a supporting bracket.

Preferably, a partition plate is arranged on the middle rotating disc, and the position of the partition plate is higher than the scum discharge port.

Preferably, the membrane filter is provided with 2 groups, the cartridge filter is provided with 1 group, the water inlet of the cartridge filter is connected with the conveying pipe, and the water outlet of the cartridge filter is connected with the water inlet end of the membrane filter.

Preferably, the bottom of the electrode area is provided with an embedding hole, the ultrasonic generator is arranged in the embedding hole, and the ultrasonic generator is used for releasing 20-35kHz ultrasonic waves.

Preferably, the perforated cylinder is made of stainless steel, one end of the perforated cylinder is provided with a speed reducer, the speed reducer is connected with the spiral piece through a connecting shaft, and the perforated cylinder is transversely placed in the Fenton advanced oxidation treatment area.

Preferably, a group of V-shaped grooves are respectively arranged on two sides of the top end of the electrode area, wherein the group of V-shaped grooves extend into the Fenton advanced oxidation treatment area and are communicated with the Fenton advanced oxidation treatment area.

The invention has the beneficial effects that:

the invention still adopts a three-stage advanced treatment scheme, but in the treatment technology, a multi-stage comprehensive Fenton treatment method and a ceramic membrane filtration method are adopted to treat sewage, various Fenton treatment methods are integrated into a whole, multi-stage oxidation is realized to remove organic matters in the sewage, the sewage is subjected to multi-stage treatment, the organic matters in the sewage are greatly reduced, the design can also concentrate and compact the treatment equipment, the occupied space of the sewage treatment equipment is greatly reduced, most of system operation can be controlled through a system control box, the automatic treatment of the sewage is realized, the use is convenient, and the manpower is reduced for system management.

Drawings

FIG. 1 is a schematic perspective view of a sewage treatment apparatus according to the present invention;

FIG. 2 is a schematic top view of the sewage treatment apparatus of the present invention;

FIG. 3 is a schematic rear view of the sewage treatment apparatus of the present invention;

FIG. 4 is a schematic diagram showing the structure of the sewage treatment apparatus of the present invention as viewed from the right;

FIG. 5 is a schematic view of the sewage treatment apparatus of the present invention;

FIG. 6 is a schematic view illustrating a second inlet pipe connection structure according to the present invention;

FIG. 7 is a schematic structural view of an electrode plate assembly according to the present invention;

FIG. 8 is a schematic view of the structure of the perforated cylinder of the present invention;

FIG. 9 is a schematic view of the plumbing of the ceramic membrane filter assembly of the present invention.

In the figure: 1. an electrode area; 2. a Fenton advanced oxidation treatment area; 3. an electrode plate assembly; 4. a first three-way solenoid valve; 5. a sludge pipe; 6. a first water inlet pipe; 7. a second water inlet pipe; 8. an ozone sewage mixing pump; 9. a water passing disc; 10. a mud valve; 11. a middle rotating disc; 12. an equipment control area; 13. a system control box; 14. an ozone generator; 15. a liquid medicine barrel; 16. a high-frequency pulse power supply; 17. an ultrasonic generator power supply; 18. a ceramic membrane filter die assembly; 19. a first acid-base injection port; 20. placing the hole; 21. a V-shaped groove; 22. an acid-base monitor; 23. a liquid level sensor; 24. a skimmer; 25. a scum discharge port; 26. a perforated cylinder; 27. a spiral sheet; 28. a speed reducer; 29. a second acid and alkali injection port; 30. a delivery pipe; 31. a filter pump; 32. a cartridge filter; 33. a membrane filter; 34. a filtrate discharge pipe; 35. a first 90 ° elbow; 36. a second 90 ° elbow; 37. a third 90-degree elbow; 38. a backwash pipe; 39. a second three-way solenoid valve; 40. and a third three-way solenoid valve.

Detailed Description

The invention will be further described with reference to the accompanying drawings and the detailed description below:

in order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described below with reference to the accompanying drawings and examples.

Example 1:

as shown in fig. 1 to 9, a combined type fenton method assisted with a ceramic membrane filtration sewage treatment device comprises an electrode area 1 and a fenton advanced oxidation treatment area 2 closely attached to the electrode area 1; the upper part of the electrode area 1 is of a hollow rectangular column structure, and the bottom part of the electrode area is of an inverted hollow rectangular cone structure; the upper part of the Fenton advanced oxidation treatment area 2 is of a cylinder structure with an opening at the top end, the bottom of the Fenton advanced oxidation treatment area is of a conical funnel structure, and the middle rotary table 11 is of a hollow square column structure.

The electrode area 1 is connected with a first water inlet pipe 6, the other end of the first water inlet pipe 6 is connected with one end of a first three-way electromagnetic valve 4, the other two ports of the first three-way electromagnetic valve 4 are respectively connected with a sludge pipe 5 and a second water inlet pipe 7, and the other end of the second water inlet pipe 7 is used for being connected with a water inlet delivery pump for supplying water; the second water inlet pipe 7 is further provided with an ozone sewage mixing pump 8 and a first acid-base injection port 19, the second water inlet pipe 7 is internally provided with a quick mixing blade, the second water inlet pipe 7 is provided with a plurality of 90-degree elbows which are divided into a first 90-degree elbow 35, a second 90-degree elbow 36 and a third 90-degree elbow 37, the first 90-degree elbow 35 is provided with the first acid-base injection port 19, and the ozone sewage mixing pump 8 is arranged between the second 90-degree elbow 36 and the third 90-degree elbow 37.

An ultrasonic generator is arranged at the bottom of the electrode area 1, and an electrode plate assembly 3 is arranged in the electrode area 1; wherein electrode region 1 bottom is equipped with and puts into hole 20, the ultrasonic generator is installed in putting into hole 20, the ultrasonic generator releases 20-35 kHz's ultrasonic wave, can shake sewage in electrode region 1, make the even pollutant that can prevent on the plate electrode simultaneously of ion distribution gather, in order to maintain sufficient reaction area, the ultrasonic wave also can cause cavitation reaction simultaneously, produce the hydroxyl free radical, initiate the fenton reaction, in addition ultrasonic wave cooperates with electrode plate subassembly 3 reaction, can make sewage produce the breakdown of emulsion effect, thereby take out and float in the surface of water with the oily pollutant in the sewage, thereby promote the effect of next section fenton oxidation treatment. Two sides of the top end of the electrode region 1 are respectively provided with a group of V-shaped grooves 21, wherein the group of V-shaped grooves 21 extend into the Fenton advanced oxidation treatment region 2 and are communicated with the Fenton advanced oxidation treatment region 2.

An electrode plate assembly 3 is arranged in the electrode area 1, the electrode plate assembly 3 is replaceable, two circular iron rings are arranged at the center of the top of the electrode plate assembly 3, and the top end of the electrode plate assembly is connected with a high-frequency pulse power supply 16 through a copper bar; the electrode plate assembly 3 adopted by the invention is a replaceable assembly, the electrode plate material of the electrode plate assembly 3 is iron or titanium or graphite and other materials, the electrode plate assembly 3 can be disassembled into an anode assembly and a cathode assembly, and the anode assembly and the cathode assembly can be replaced according to requirements; every two adjacent electrode plates of the electrode plate assembly 3 are separated by an insulator, the insulator is made of materials such as nylon or epoxy resin, and the like, so that the electrode plates can be fixed at intervals, the anode electrode plate and the cathode electrode plate are separated, and short circuit is avoided; two circular iron rings are arranged at the top end of the electrode plate assembly 3, when the electrode plate assembly 3 is replaced and adjusted, the circular iron rings can be used for hoisting the electrode plate assembly 3, an anode copper bar on the high-frequency pulse power supply 16 is connected with a cathode on the top end of the electrode plate, a cathode copper bar on the high-frequency pulse power supply 16 is connected with a cathode on the top end of the electrode plate, and the current interval provided by the high-frequency pulse power supply 16 is 0-1000A. The replaceable design is convenient for adjusting the electrode plate assembly 3 according to requirements, and meanwhile, the current setting is elastic, so that the equipment achieves higher degree of freedom.

The ozone making machine 14 is connected with the ozone sewage mixing pump 8, the fast mixing blade and the 90-degree elbow can rotate and impact to change the sewage flow direction, turbulence is generated to mix the sewage and chemicals, and therefore the pH value of the sewage is adjusted, and an optimal environment is provided for the Fenton oxidation process. Ozone sewage mixing pump 8 is provided with an ozone and goes into the gas port and a hydrogen peroxide injection mouth, can be connected to ozone that ozone maker 14 made and inject the hydrogen peroxide in the hydrogen peroxide liquid medicine cask into the hydrogen peroxide injection mouth, make ozone and hydrogen peroxide fully dissolve through operation ozone sewage mixing pump 8, ozone sewage mixing pump 8 mixes ozone, hydrogen peroxide and sewage, make ozone and hydrogen peroxide fully dissolve, make the advanced oxidation take place, carry out further fenton oxidation treatment.

In this embodiment, 1 entry in electrode region chooses for use first three way solenoid valve 4, can connect two oral siphon and the sludge pipe 5 of electrode region 1, goes into water and puts the mud process through an import and export and valve, can dwindle sewage treatment district size as far as possible and reduce loss formula accessory. The first three-way electromagnetic valve 4 can allow sewage to enter the electrode area 1 or discharge sludge in the electrode area 1, the operation of the first three-way electromagnetic valve 4 is controlled by the system control box 13, and various electrical operations in the invention are uniformly distributed in the system control box 13, thereby realizing the centralized automatic operation of the device.

The center position of the top of the Fenton advanced oxidation treatment area 2 is provided with a water passing disc 9, the bottom end of the water passing disc is provided with a mud valve 10, the water passing disc 9 is connected with a middle rotating disc 11, the water passing disc 9 is also provided with an acid-base monitor 22 and a liquid level sensor 23 which are fixed through a support bracket, and the top position of the middle rotating disc 11 is provided with a second acid-base injection port 29. The top end of the Fenton advanced oxidation treatment area 2 is also provided with a skimmer 24, the skimmer 24 comprises an opening cylinder 26 and a speed reducer 28, the speed reducer 28 is arranged at one end of the opening cylinder 26, the opening cylinder 26 is made of stainless steel and is connected with a scum discharge port 25, the opening cylinder 26 is transversely arranged, a spiral sheet 27 is arranged in the opening cylinder 26, a connecting shaft of the spiral sheet 27 is connected with the speed reducer 28, and when the spiral sheet 27 rotates, scum can be brought into the opening cylinder 26 and then pushed to the scum discharge port 25. The middle rotary table 11 is also provided with a partition plate, the position of the partition plate is higher than the scum discharge port 25, so that scum can be prevented from flowing to the middle rotary table 11, the bottom of the middle rotary table 11 is provided with a water outlet, the water outlet of the middle rotary table 11 is connected with a conveying pipe 30, and the conveying pipe 30 is connected with a security filter 32 in the ceramic membrane filter assembly 18.

The sewage treatment device also comprises an equipment control area 12, wherein the equipment control area 12 is provided with a liquid medicine barrel 15, a system control box 13, an ozone generator 14 and a ceramic membrane filter assembly 18, the liquid medicine barrel 15 is arranged on the opposite side of the ceramic membrane filter assembly 18, the system control box 13 and the ozone generator 14, the middle part of the equipment control area 12 is provided with a high-frequency pulse power supply 16 and an ultrasonic generator power supply 17, the ozone generator 14 is connected with the ozone sewage mixing pump 8, the high-frequency pulse power supply 16 is electrically connected with the electrode plate assembly 3, and the ultrasonic generator power supply 17 is electrically connected with the ultrasonic generator to provide electric energy for the two.

The ceramic membrane filter assembly 18 is provided with a membrane filter 33 and a cartridge filter 32, the water inlet end of the cartridge filter 32 is connected with the middle rotating disc 11 through a conveying pipe 30, the membrane filter 33 is provided with 2 groups, the cartridge filter 32 is provided with 1 group, the conveying pipe 30 is further sequentially provided with a second three-way electromagnetic valve 39, a filter pump 31 and a third three-way electromagnetic valve 40, the other end of the second three-way electromagnetic valve 39 is connected with a backflushing liquid medicine bucket, the filter pump 31 is arranged between the second three-way electromagnetic valve 39 and the third three-way electromagnetic valve 40, the other end of the third three-way electromagnetic valve 40 is connected with a backflushing pipe 38, the water outlet end of the cartridge filter 32 is connected with the water inlet end of the membrane filter 33 through a pipeline, and a filtrate discharge pipe 34 on the membrane filter 33 is connected with the backflushing pipe 38. By controlling the second three-way electromagnetic valve 39 and the third three-way electromagnetic valve 40, the backflushing liquid medicine water tank and the backflushing pipe 38 are both closed and connected with the conveying pipe 30, then the filter pump 31 is operated to pump the sewage into the security filter 32 for preliminary filtration, the suspended solids with larger particles in the sewage can be filtered away, the filtrate enters the membrane filter 33 through the water outlet end of the security filter 32 for next filtration treatment, the filtrate enters the water accumulation pipe in the membrane filter 33, small-particle molecules and water in the sewage are pushed out of the membrane filter 33 to the external water storage space through the pressure provided by the filter pump 31, the large-particle molecules in the sewage are blocked by the filter layer in the membrane filter 33 to realize purification filtration, and the filtrate is discharged through the filtrate discharge pipe 34; since the membrane filter 33 is connected to the backwash pipe 38 through the filtrate discharge pipe 34, the backwash liquid drug tank can be brought into a communicating state with the backwash pipe 38 and the delivery pipe 30 by controlling the second three-way solenoid valve 39 and the third three-way solenoid valve 40, and at this time, the backwash liquid can be pumped into the membrane filter 33 by operating the filter pump 31, and contaminants accumulated on the surface and in the pores of the ceramic membrane can be removed by periodically injecting the backwash liquid to flush the water accumulation pipe in the membrane filter 33, thereby maintaining the efficiency of the membrane filter 33.

The liquid medicine barrel 15 comprises a hydrogen peroxide liquid medicine barrel, a backflushing liquid medicine barrel, a sulfuric acid liquid medicine barrel and a sodium hydroxide liquid medicine barrel, wherein the hydrogen peroxide liquid medicine barrel is connected with the ozone sewage mixing pump 8 through a liquid medicine injection pipe, and the sulfuric acid liquid medicine barrel and the sodium hydroxide liquid medicine barrel are respectively connected with a first acid-base liquid medicine injection port 19 and a second acid-base liquid medicine injection port 29 through liquid medicine injection pipes.

Because V-arrangement recess 21 runs through Fenton advanced oxidation treatment zone 2, sewage flows into electrode region 1 from the water inlet after, then gushes out electrode region 1 and flows to V-arrangement recess 21, and sewage gets into Fenton advanced oxidation treatment zone 2 through V-arrangement recess 21 of electrode region 1. The upflow water inlet can lead the sewage and the bubbles generated after the electrode plate component 3 is electrified to be upward together, can bring suspended solids in the sewage to the water surface, can also increase the reaction path and time of the sewage and the electrode plate, can simultaneously reduce the sewage activity and the odor released by the sewage activity, and can also reduce the sewage splashing. This kind of structure flows sewage from electrode region 1 to fenton advanced oxidation treatment district 2 through V-arrangement recess 21 and can avoid needing extra pump and choke, and the design of the V-arrangement recess 21 drainage of both sides simultaneously can let sewage evenly flow out, and sewage can flow through the monoblock plate electrode, makes the plate electrode can evenly apply and release the ion, avoids leading to the plate electrode application to be partial to the drainage direction because of one side goes out water.

The working process and the principle of the invention are as follows:

untreated sewage is firstly pumped into a second inlet pipe 7 by an inlet delivery pump, then sulfuric acid is injected from a first acid-base injection port 19 and is rapidly and preliminarily mixed with sewage in the second inlet pipe 7, acid sewage flows through an ozone-sewage mixing pump 8 arranged on the second inlet pipe 7, ozone and hydrogen peroxide are injected into the sewage through the ozone-sewage mixing pump 8, the hydrogen peroxide can release oxidant hydroxyl radicals after reaction, ozone is also a strong oxidant, the sewage can be oxidized by reaction of the ozone and the hydrogen peroxide, the ozone-sewage mixing pump 8 is operated to mix the ozone and the hydrogen peroxide with the sewage, the sewage after being sufficiently mixed with the sulfuric acid, the ozone and the hydrogen peroxide flows into an electrode area 1 through a first three-way electromagnetic valve 4 in the process of flowing through a 90-degree elbow position and flowing into a rapid mixing blade arranged in the second inlet pipe 7 to generate turbulence, so that the ozone and the hydrogen peroxide are sufficiently dissolved and mixed with the sewage, the acid-base value of the sewage is reduced, advanced oxidation is prepared for Fenton advanced oxidation treatment, the sewage after being sufficiently mixed with the sulfuric acid, the ozone and the hydrogen peroxide flows into the electrode area 1 through the first three-way electromagnetic valve 4, and the electromagnetic valve in the direction of a sludge pipe 5 is closed, and an electrode area 1 is allowed to flow. Sewage flows upwards after entering the electrode area 1 and passes through the ultrasonic generator, the ultrasonic generator transmits ultrasonic waves into the electrode area 1, the sewage continues to flow upwards to the electrode plate assembly 3, the high-frequency pulse power supply 16 provides electric power, the electrode plate assembly 3 can release ferrous ions (Fe & lt 2+ & gt) and hydrogen (H & lt 2+ & gt) after being electrified, the ferrous ions and the hydrogen are shaken away from the electrode plate assembly 3 by the ultrasonic waves and are uniformly dispersed in the electrode area 1, through electrode reaction, the demulsification process occurs, grease in the sewage can be separated from water, through the vibration of the hydrogen and the ultrasonic waves, the grease can ascend and float on the water surface, meanwhile, the ultrasonic waves can also induce cavitation reaction to generate hydroxyl radicals, and the fenton reaction is initiated.

The sewage continuously flows upwards to the top end of the electrode area 1, then flows into the V-shaped grooves 21 on two sides of the top end of the electrode area 1, enters the Fenton advanced oxidation reaction area 2 through the V-shaped grooves 21, partial organic matters in the sewage are converted into scum, micromolecular organic matters and inorganic matters through the Fenton oxidation reaction, the scum passes through a skimmer 24 at the top end of the Fenton advanced oxidation treatment area 2, the scum is brought into the pipe and pushed to a scum discharge port 25 to be discharged, heavier molecules are deposited at the bottom of the tank through gravity to form sludge, and the sludge at the bottom of the tank can be discharged by opening a sludge discharge valve 10.

The sewage treated in the first step flows to the middle rotating disc 11 through the water passing disc 9, the middle rotating disc 11 is provided with a partition plate and is higher than the scum discharge port 25, so that scum can be prevented from flowing to the middle rotating disc 11; the middle rotating disk 11 is also provided with a second acid and alkali injection port 29, then the second acid and alkali injection port 29 injects sodium hydroxide into the middle rotating cylinder, and acid and alkali neutralization reduces the solubility of metal pollutants, so as to generate a precipitation effect; then the sewage is discharged to the delivery pipe 30 through the bottom end of the middle rotating disk 11, the delivery pipe 30 is connected with the water inlet of the security filter 32 through the filter pump 31, the connection between the backflushing liquid medicine water barrel channel and the backflushing pipe 38 and the delivery pipe 30 is respectively closed through controlling the second three-way electromagnetic valve 39 and the third three-way electromagnetic valve 40, the filter pump 31 is operated to pump the sewage into the security filter 32 for preliminary filtration, the suspended solids with larger particles in the sewage are separated, the filtrate enters the next filtration treatment through the water outlet end of the security filter 32, the filtrate enters the water accumulating pipe in the membrane filter 33, the small particles and the water in the sewage are pushed out of the membrane filter 33 to the external water storage space through the pressure provided by the filter pump 31, the large particles in the sewage are blocked by the filter layer in the membrane filter 33, and the filtrate is discharged through the filtrate discharge pipe 34 for the next treatment. The membrane filter 33 is further provided with a back flushing function, a back flushing liquid medicine water tank passage and a back flushing pipe 38 are communicated with the conveying pipe 30 by controlling a second three-way electromagnetic valve 39 and a third three-way electromagnetic valve 40, the filter pump 31 is operated to pump back flushing liquid into the membrane filter 33, the accumulated water pipe is flushed by periodically injecting the back flushing liquid, pollutants accumulated on the surface and in the holes of the membrane are removed, and the efficiency of the membrane filter 33 is maintained.

Sewage is handled through the multistage formula, can be with the organic matter in the sewage significantly reduced, and this design is concentrated and the inseparable device with treatment facility, but the occupation space of greatly reduced sewage treatment equipment to whole sewage treatment is automated processing, sees through control system control box and can control most system operation, convenient to use, and reduce the manpower and carry out system management.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present invention.

Claims

1. The combined Fenton method is assisted by a ceramic film filtering sewage processor and is characterized by comprising an electrode area and a Fenton advanced oxidation treatment area which is arranged in close contact with the electrode area; the electrode area is connected with a first water inlet pipe, the first water inlet pipe is connected with one end of a first three-way electromagnetic valve, the other two ports of the first three-way electromagnetic valve are respectively connected with a sludge pipe and a second water inlet pipe, and an ozone sewage mixing pump and a first acid-base injection port are arranged on the second water inlet pipe; the bottom of the electrode area is provided with an ultrasonic generator, and an electrode plate assembly is arranged in the electrode area;

the sewage treatment device also comprises an equipment control area, wherein the equipment control area is provided with a ceramic film filter assembly, a system control box, an ozone making machine and a liquid medicine bucket, and the middle part of the equipment control area is provided with a high-frequency pulse power supply and an ultrasonic generator power supply; the ceramic membrane filter assembly is provided with a membrane filter and a security filter, the water inlet end of the security filter is connected with the middle rotary table through a conveying pipe, a second three-way electromagnetic valve, a filter pump and a third three-way electromagnetic valve are sequentially connected onto the conveying pipe, the other end of the second three-way electromagnetic valve is connected with a backflushing liquid medicine bucket, the filter pump is arranged between the second three-way electromagnetic valve and the third three-way electromagnetic valve, the other end of the third three-way electromagnetic valve is connected with a backflushing pipe, the water outlet end of the security filter is connected with the water inlet end of the membrane filter through a pipeline, and a filtrate discharge pipe on the membrane filter is connected with the backflushing pipe;

a water passing disc is arranged at the center of the top of the Fenton advanced oxidation treatment area, a mud valve is arranged at the bottom end of the Fenton advanced oxidation treatment area, the water passing disc is connected with a middle rotary disc, a second acid-base injection port is arranged at the top of the middle rotary disc, a water outlet of the middle rotary disc is connected with a conveying pipe, and the conveying pipe is connected with a ceramic membrane filter assembly; the top of the Fenton advanced oxidation treatment area is also provided with a skimmer, the skimmer comprises a speed reducer and an opening cylinder, the opening cylinder is connected with a scum discharge port, and a spiral sheet is arranged in the opening cylinder;

2. The combined Fenton method assisted ceramic membrane filtration sewage treatment device of claim 1, wherein the drug water tank is arranged on the opposite side of the ceramic membrane filter assembly, the system control box and the ozone making machine, the ozone making machine is connected with the ozone sewage mixing pump, the high-frequency pulse power supply is electrically connected with the electrode plate assembly, and the ultrasonic generator power supply is electrically connected with the ultrasonic generator.

3. The combined Fenton method assisted with ceramic membrane filtration sewage treatment unit according to claim 1, wherein the upper part of the electrode area is a hollow rectangular column structure, and the bottom part is an inverted hollow rectangular cone structure; the upper part of the Fenton advanced oxidation treatment area is of a cylinder structure with an opening at the top end, and the bottom of the Fenton advanced oxidation treatment area is of a conical funnel structure; the middle rotary table is of a hollow square column structure; be equipped with fast blade of mixing in the second oral siphon, still be equipped with first 90 elbows, second 90 elbows and third 90 elbows on the second oral siphon, first acid-base injection mouth sets up on first 90 elbows, ozone sewage mixing pump sets up between second 90 elbows and third 90 elbows, the second oral siphon is connected with outside income water delivery pump.

4. The combined Fenton method assisted ceramic membrane filtration sewage treatment unit according to claim 1, wherein the top end of the electrode plate assembly is connected with a high-frequency pulse power supply through a copper bar, the electrode plate assembly is a replaceable assembly, the electrode plate material of the electrode plate assembly is one of iron, titanium or graphite, two adjacent electrode plates of the electrode plate assembly are separated through an insulator, the insulator is nylon or epoxy resin, and the current provided by the high-frequency pulse power supply ranges from 0A to 1000A.

5. The combined Fenton's method and ceramic membrane filtration sewage treatment plant as claimed in claim 1, wherein the water-passing tray is further provided with an acid-base monitor and a liquid level sensor fixed by a support bracket.

6. The combined Fenton's method and ceramic membrane filtration sewage treatment plant as claimed in claim 1, wherein the middle rotating disc is provided with a partition plate, and the partition plate is positioned higher than the scum discharge port.

7. The combined Fenton's method assisted ceramic membrane filtration sewage treatment unit according to claim 1, wherein the membrane filters are provided in 2 sets, the cartridge filter is provided in 1 set, the inlet of the cartridge filter is connected with the delivery pipe, and the outlet of the cartridge filter is connected with the inlet of the membrane filter.

8. The combined Fenton's method is assisted with ceramic membrane filtration sewage treatment unit according to claim 1, characterized in that the bottom of the electrode area is provided with an insertion hole, the ultrasonic generator is installed in the insertion hole, and the ultrasonic generator is used for releasing 20-35kHz ultrasonic wave.

9. The combined Fenton method assisted with ceramic membrane filtration sewage treatment unit according to claim 1, wherein the perforated cylinder is made of stainless steel, one end of the perforated cylinder is provided with a speed reducer, the speed reducer is connected with a spiral sheet through a connecting shaft, and the perforated cylinder is transversely placed in the Fenton advanced oxidation treatment area.

10. The combined type Fenton method and ceramic membrane filtration sewage treatment device assisted by claim 1, wherein a group of V-shaped grooves are respectively arranged on two sides of the top end of the electrode area, and one group of V-shaped grooves extend into the Fenton advanced oxidation treatment area and are communicated with the Fenton advanced oxidation treatment area.