CN113816486A - Membrane Fenton fluidized bed reaction unit - Google Patents
Membrane Fenton fluidized bed reaction unit Download PDFInfo
- Publication number
- CN113816486A CN113816486A CN202111178804.7A CN202111178804A CN113816486A CN 113816486 A CN113816486 A CN 113816486A CN 202111178804 A CN202111178804 A CN 202111178804A CN 113816486 A CN113816486 A CN 113816486A
- Authority
- CN
- China
- Prior art keywords
- fluidized bed
- water
- tower body
- membrane
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/02—Hollow fibre modules
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/02—Fluid flow conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/026—Fenton's reagent
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention relates to a membrane Fenton fluidized bed reaction device, which comprises a fluidized bed tower body, wherein a water distributor, a PVDF (polyvinylidene fluoride) hollow fiber membrane device, a current stabilizer, a backflow water tank and a water outlet tank are sequentially arranged inside the fluidized bed tower body from bottom to top, the membrane Fenton fluidized bed reaction device also comprises an internal circulation device arranged outside the water distributor, the bottom of the PVDF hollow fiber membrane device is externally connected with a hydrogen peroxide adding device, a water inlet pump butterfly valve and a backwashing drain valve, the upper part of the PVDF hollow fiber membrane device is externally connected with a pressure transmitter, a backwashing water pump butterfly valve and a backwashing tank, the top of the fluidized bed tower body is provided with a ferrous iron adding device, and the internal circulation device is arranged between the backflow water tank and the water distributor and comprises a circulating pump rear pipe connected with the backflow water tank and a circulating pump front pipe connected with the water distributor. This membrane fenton fluidized bed reaction unit, through the oxidation of fenton fluidized bed, the difficult degradation of biology organic matter that will biochemical MBR pond goes out aquatic is effectively got rid of.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a membrane Fenton fluidized bed reaction device.
Background
The advanced treatment of the wastewater is an important measure for maintaining good water environment and sustainable utilization of water resources, is a bridge leading to healthy water circulation, is relatively short in water resources in China and increasingly serious in water pollution, is one of approaches for solving the problems from the aspects of environment and economy, and is a technical basis for realizing the approaches by vigorously developing a high-efficiency, low-energy-consumption and low-cost sewage treatment technology.
The Fenton chemical oxidation method is a reaction for oxidizing and removing organic substances in a water body by utilizing the principle that hydrogen peroxide and ferrous ions generate hydroxyl radical strong oxidants under certain reaction conditions, the current mainstream Fenton fluidized bed technology mixes the ferrous ions and the hydrogen peroxide through internal circulation to generate a Fenton reaction, the phenomena of poor mixing effect and low reaction efficiency exist in different degrees, the decontamination effect of a reaction device is seriously influenced, and the social requirement cannot be met, so that the membrane Fenton fluidized bed reaction device is provided to solve the problems.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a membrane Fenton fluidized bed reaction device, which has the advantages of high reaction contact efficiency and the like, and solves the problems that the reaction device is poor in mixing effect and low in reaction efficiency, and the decontamination effect of the reaction device is seriously influenced.
In order to achieve the purpose of high reaction contact efficiency, the invention provides the following technical scheme: the utility model provides a membrane fenton fluidized bed reaction unit, includes the fluidized bed tower body, the inside of fluidized bed tower body has set gradually water-locator, PVDF hollow fiber membrane device, current stabilizer, return water tank and play basin from bottom to top and constitutes.
The device is characterized by further comprising an internal circulation device arranged outside the water distributor, wherein a hydrogen peroxide adding device, a water inlet pump butterfly valve and a backwashing drain valve are connected to the bottom of the PVDF hollow fiber membrane device externally, a pressure transmitter, a backwashing water pump butterfly valve and a backwashing tank are connected to the upper portion of the PVDF hollow fiber membrane device externally, and a ferrous iron adding device is arranged at the top of the fluidized bed tower body.
Further, the internal circulation device is arranged between the backflow water tank and the water distributor and comprises a rear circulation pump pipe connected with the backflow water tank and a front circulation pump pipe connected with the water distributor, and a circulation pump is arranged between the rear circulation pump pipe and the front circulation pump pipe.
Further, the fluidized bed tower body is made of 316L steel plates through welding.
Furthermore, the water outlet flow speed of the single component of the water distributor is 5m/s to 6 m/s.
Further, the PVDF hollow fiber membrane device has a fiber membrane flux set at 0.2 to 0.4m3M2 d, the water yield of the fiber membrane is 1/3 to 1/2 of the total water inflow, the inner diameter of the fiber membrane is 0.3 to 1.4mm, and the pore diameter of the surface of the fiber membrane is 15 to 20 um.
Further, one side of the backflow water tank, which is far away from the fluidized bed tower body, is provided with a water inlet pool for supplying water to the backflow water tank.
Furthermore, one side of the water outlet groove, which is far away from the fluidized bed tower body 1, is provided with a water outlet pool for receiving water from the water outlet groove.
Further, the pressure transmitter controls the internal pressure of the pipeline to be less than 0.1 MPa.
Furthermore, the liquid medicine used by the backwashing tank sequentially comprises sodium hypochlorite and citric acid solution, wherein the concentration of the sodium hypochlorite solution is 1000mg/L to 2500mg/L, and the concentration of the citric acid solution is 1 percent to 2 percent (mass fraction).
Furthermore, a wastewater pond is arranged on one side, away from the fluidized bed tower body, of the water inlet pump, a backwashing water collecting pond is arranged on one side, away from the fluidized bed tower body, of the backwashing water discharge valve, the flow of the circulating pump is 1-1.8 times of the flow of inlet water, the ascending flow velocity of the fluidized bed tower body is 10-20m/h, and the hydraulic retention time of the fluidized bed tower body is 30-45 min.
Compared with the prior art, the invention provides a membrane Fenton fluidized bed reaction device, which has the following beneficial effects:
this membrane fenton fluidized bed reaction unit, get rid of the difficult degradation organic matter in the water through the advanced oxidation of fenton fluidized bed, through adopting PVDF hollow fiber membrane device to evenly distribute the waste water that contains hydrogen peroxide inside the fluidized bed tower body, with the help of the huge specific surface area advantage of PVDF hollow fiber membrane, the waste water that contains hydrogen peroxide on outflow membrane surface contacts with the waste water that contains ferrous ion that constantly circulates in fluidized bed tower body inside, produce the organic substance in a large amount of hydroxyl free radical oxidation waste water, can effectively improve the reaction contact efficiency of waste water, can improve the efficiency of getting rid of pollutant in the waste water, the advantage that reaction contact efficiency is high has been reached, it is poor to have solved reaction unit and mixed the effect, and reaction efficiency is low, serious influence reaction unit's decontamination effect's problem.
Drawings
Fig. 1 is a schematic structural layout elevation view of a membrane fenton fluidized bed reactor according to the present invention.
In the figure: the device comprises a fluidized bed tower body 1, a water distributor 2, a 3PVDF hollow fiber membrane device, a 4 flow stabilizer, a 5 backflow water tank, a 6 water outlet tank, a 7 internal circulation device, a 71 circulation pump rear pipe, a 72 circulation pump front pipe, a 73 circulation pump, an 8 hydrogen peroxide adding device, a 9 water inlet pump, a 10 water inlet pump butterfly valve, a 11 back flushing water discharge valve, a 12 pressure transmitter, a 13 back flushing water pump, a 14 back flushing water pump butterfly valve, a 15 back flushing tank, a 16 ferrous iron adding device, a 17 water inlet tank, an 18 water outlet tank, a 19 wastewater tank and a 20 back flushing water collecting tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a membrane fenton fluidized bed reactor includes a fluidized bed tower 1, and a water distributor 2, a PVDF hollow fiber membrane device 3, a flow stabilizer 4, a backflow water tank 5 and a water outlet tank 6 are sequentially disposed inside the fluidized bed tower 1 from bottom to top.
The device is characterized by further comprising an internal circulation device 7 arranged outside the water distributor 2, the bottom of the PVDF hollow fiber membrane device 3 is externally connected with a hydrogen peroxide adding device 8, a water inlet pump 9, a water inlet pump butterfly valve 10 and a back flushing drain valve 11, the upper part of the PVDF hollow fiber membrane device 3 is externally connected with a pressure transmitter 12, a back flushing water pump 13, a back flushing water pump butterfly valve 14 and a back flushing tank 15, and the top of the fluidized bed tower body 1 is provided with a ferrous adding device 16.
The internal circulation device 7 is connected with the water return tank 5 and the water distributor 2 through a pipeline, wastewater mixed with ferrous ions in the water return tank 5 is pumped to the water distributor 2, and the internal circulation pump is controlled by the frequency converter to ensure that the flow rate reaches the design requirement.
The flow stabilizer 4 in this embodiment may be made of PP material, or 316L stainless steel material, and the flow stabilizer 4 is fixed at the bottom of the backflow water tank 5 and the water outlet tank 6 by a distance of 20cm, which is not limited in this embodiment.
As shown in FIG. 1, the flow rate is 6m3The MBR outlet water of/h is used as system inlet water and is divided into two parts, and the water amount of each part is approximately 3m3One is pumped into a backflow water tank 5, the other is pumped into the PVDF hollow fiber membrane device 3 through a water inlet pump 9, hydrogen peroxide is pumped into a pump front pipe of the water inlet pump 9 through a hydrogen peroxide adding device 8 to be mixed with wastewater, ferrous iron is pumped into the backflow water tank 5 through a ferrous iron adding device 16 to be mixed with the wastewater, the pH value in the fluidized bed tower body 1 is 3.5, a circulating pump rear pipe 71 positioned at a high position passes through a circulating pump 73, the wastewater mixed with the ferrous iron is pumped into the bottom of the fluidized bed tower body 1 through a circulating pump front pipe 72, the wastewater distributed at the bottom of the fluidized bed tower body 1 through a water distributor 2 is uniformly dispersed and ascended to meet the water discharged from the PVDF hollow fiber membrane device 3 to carry out a fenton reaction, the wastewater continuously ascends after the reaction, after the water flow is stabilized through a flow stabilizer 4, one part is pumped into the backflow water tank 5 to continue the reaction, one part is pumped into a water discharge tank 6 to be discharged, the flow rate of the circulating pump 73 is controlled during the reaction process, the flow of the circulating pump 73 is 1.8 times of the inflow water, the rising flow rate is controlled to be 20m/h, and the hydraulic retention time of the tank body is designed to be 45 min.
Preferably, the water distributor 2 is made of PP, 316L, or ptfe, which is not limited in this embodiment.
The water distributor 2 is provided with 8 open pores, the water outlet flow speed of each pore is ensured to be 6m/s, the total number of the water distributor 2 is 152, the pore diameter of each open pore is 8mm in order to ensure that the water distributor 2 in operation cannot be blocked, and in operation, if the circulating flow rate is reduced, the operation frequency of the circulating pump 73 is adjusted upwards to flush the iron mud blocked in the water distributor 2.
In the PVDF hollow fiber membrane 3 used in this example, each membrane filament had an outer diameter of 2.2mm, an inner diameter of 1.3mm, and a design flux of 0.2m3/m2D, the membrane water yield is 1/2 of the total water inflow, the average pore diameter of the membrane surface is 20um, and the total membrane area is designed to be 450m2。
In this embodiment, the PVDF hollow fiber membrane 3 may also be replaced by a flat membrane made of the same material and having the same area, which is not limited in this embodiment.
The fluidized bed tower body 1 used in the embodiment is made of 316L materials on the contact surface with wastewater, the thickness of the plate is 8mm, the inner wall of the fluidized bed tower body is further coated with a glass fiber reinforced plastic anticorrosive coating with the thickness of about 5mm, the tower body is a vertical cylinder, the diameter of the bottom surface is 1500mm, and the height is 5200 mm.
The diameter and height of the bottom surface of the fluidized bed tower body 1 can be adjusted according to the actual conditions of the engineering, and the embodiment is not limited to this.
In one embodiment of the invention, as shown in fig. 1, a pressure transmitter 12 controls the internal operating pressure of the pipeline to be lower than 0.1MPa, when the internal operating pressure of the membrane system is higher than the value, a back flush water pump 13, a back flush water pump butterfly valve 14 and a back flush drain valve 11 are started, and a hydrogen peroxide adding device 8, a water inlet pump 9 and a water inlet pump butterfly valve 10 are closed, so that the back flush function of the membrane system is performed.
Preferably, the liquid medicine used by the backwashing tank 15 is sodium hypochlorite and citric acid solution in sequence, wherein the concentration of the sodium hypochlorite solution is 1500mg/L, and the mass concentration of the citric acid solution is 1.5%.
As before, the back flush water pump butterfly valve 14, the back flush drain valve 11, the water inlet pump butterfly valve 10 and the hydrogen peroxide adding device 8 in the system can be manually controlled or automatically controlled electrically; the pressure transmitter 12 can be cleaned regularly when the internal pressure is not 0.1MPa, the pressure transmitter can be cleaned periodically, the pressure transmitter can be cleaned once a week for maintenance, the backwashing tank 15 is used for preparing a sodium hypochlorite solution with the concentration of 1000mg/L and once a month for recovery cleaning, the backwashing tank 15 is used for preparing a sodium hypochlorite solution with the concentration of 2500mg/L, the PVDF hollow fiber membrane 3 can be blocked by sludge when running for a long time, the pressure transmitter can be cleaned once a half year, and the backwashing tank 15 is used for preparing a citric acid solution with the mass fraction of 1.5%.
In one embodiment of the present invention, as shown in fig. 1, the method for treating MBR effluent comprises the following steps:
the MBR effluent with COD of about 150mg/L is divided into a PVDF hollow fiber membrane device 3 and a reflux water tank 5, and the water amount is 3m respectively3Adding 0.15mL of hydrogen peroxide with the volume concentration of 30% into each liter of wastewater entering the PVDF hollow fiber membrane device 3 and adding 0.2g of ferrous sulfate into each liter of wastewater entering the backflow water tank 5, so that the COD can be reduced to about 65 mg/L; when 0.25mL of hydrogen peroxide and 0.35g of ferrous sulfate with the volume concentration of 30% are added into each liter of wastewater, the COD can be reduced to about 45mg/L, and when the adding amount of the hydrogen peroxide and the ferrous sulfate is continuously increased, the reaction efficiency is reduced to some extent; when the adding amount of the hydrogen peroxide and the ferrous sulfate is too low, the reaction efficiency is also reduced.
After the Fenton fluidized bed treatment, the COD is reduced to 45mg/L at 150mg/L, thereby realizing the requirement of advanced treatment of the wastewater.
In an experimental example, the fluidized bed and the treatment method provided by the embodiment of the invention are applied to respectively treat three different engineering wastewater with the Fenton fluidized bed in the prior art, and the specific results are as follows:
wherein the wastewater to be treated of example 1 is paper making wastewater, the wastewater to be treated of example 2 is garbage leachate, the wastewater to be treated of example 3 is sodium hydrosulfite production wastewater, and the specific removal conditions of CODcr are as follows in Table 1:
table 1 shows the three wastewater treatment effects.
| Example 1 (paper making) | Example 2 (leachate) | Example 3 (sodium hydrosulfite) | |
| Before treatment | 234mg/L | 345mg/L | 152mg/L |
| After treatment | 86mg/L | 107mg/L | 45mg/L |
| Removal rate | 63.2％ | 69.0％ | 70.4％ |
| Improving the effect | 32～40％ | 62～70％ | 40～52％ |
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All modifications made according to the spirit of the main technical scheme of the invention are covered in the protection scope of the invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a membrane fenton fluidized bed reaction unit, includes fluidized bed tower body (1), its characterized in that: the fluidized bed tower body (1) is internally provided with a water distributor (2), a PVDF hollow fiber membrane device (3), a current stabilizer (4), a backflow water tank (5) and a water outlet tank (6) from bottom to top in sequence.
Still including setting up at the outside internal circulation device (7) of water-locator (2), the bottom of PVDF hollow fiber membrane device (3) is external to have hydrogen peroxide to throw feeder apparatus (8), intake pump (9), intake pump butterfly valve (10) and back flush drain valve (11), the upper portion of PVDF hollow fiber membrane device (3) is external to have pressure transmitter (12), back flush water pump (13), back flush water pump butterfly valve (14) and backwash jar (15), the top of fluidized bed tower body (1) is equipped with ferrous and throws feeder apparatus (16).
2. A membrane fenton fluidized bed reactor according to claim 1, characterized in that: the internal circulation device (7) is arranged between the backflow water tank (5) and the water distributor (2) and comprises a circulation pump rear pipe (71) connected with the backflow water tank (5) and a circulation pump front pipe (72) connected with the water distributor (2), and a circulation pump (73) is arranged between the circulation pump rear pipe (71) and the circulation pump front pipe (72).
3. A membrane fenton fluidized bed reactor according to claim 2, characterized in that: the fluidized bed tower body (1) is made by welding 316L steel plates.
4. A membrane fenton fluidized bed reactor according to claim 3, characterized in that: the water outlet flow speed of a single component of the water distributor (2) is 5 to 6 m/s.
5. A membrane Fenton fluidized bed reactor according to claim 4, characterized in that: the PVDF hollow fiber membrane device (3) has a fiber membrane flux set at 0.2 to 0.4m3/m2D, the water yield of the fiber membrane is 1/3-1/2 of the total water inflow, the inner diameter of the fiber membrane is 0.3-1.4 mm, and the pore diameter of the surface of the fiber membrane is 15-20 um.
6. A membrane Fenton fluidized bed reactor according to claim 5, characterized in that: and a water inlet pool (17) used for supplying water to the backflow water tank (5) is arranged on one side of the backflow water tank (5) far away from the fluidized bed tower body (1).
7. A membrane Fenton fluidized bed reactor according to claim 6, characterized in that: and a water outlet pool (18) for receiving water from the water outlet tank (6) is arranged on one side of the water outlet tank (6) far away from the fluidized bed tower body (1).
8. A membrane fenton fluidized bed reactor according to claim 7, characterized in that: and the pressure transmitter (12) controls the internal pressure of the pipeline to be less than 0.1 MPa.
9. A membrane fenton fluidized bed reactor according to claim 8, characterized in that: the liquid medicine used by the back washing tank (15) is sodium hypochlorite and citric acid solution in sequence, the concentration of the sodium hypochlorite solution is 1000mg/L to 2500mg/L, and the concentration of the citric acid solution is 1 percent to 2 percent (mass fraction).
10. A membrane fenton fluidized bed reactor according to claim 9, characterized in that: one side that fluidized bed tower body (1) was kept away from in intake pump (9) is provided with wastewater disposal basin (19), one side that fluidized bed tower body (1) was kept away from in backwash drain valve (11) is provided with backwash water collecting pit (20), the flow of circulating pump (73) is 1-1.8 times of inflow, the velocity of flow that rises of fluidized bed tower body (1) is 10-20m/h, the water conservancy dwell time of fluidized bed tower body (1) is 30-45 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111178804.7A CN113816486A (en) | 2021-10-11 | 2021-10-11 | Membrane Fenton fluidized bed reaction unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111178804.7A CN113816486A (en) | 2021-10-11 | 2021-10-11 | Membrane Fenton fluidized bed reaction unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113816486A true CN113816486A (en) | 2021-12-21 |
Family
ID=78920038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111178804.7A Pending CN113816486A (en) | 2021-10-11 | 2021-10-11 | Membrane Fenton fluidized bed reaction unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113816486A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103979663A (en) * | 2014-05-20 | 2014-08-13 | 南京大学 | Neutral composite bed Fenton reactor and sewage treatment method thereof |
| CN205419890U (en) * | 2016-03-16 | 2016-08-03 | 山东省环境保护科学研究设计院 | Take fragrant catalytic processing device of sewage of membrane module |
| US20190039929A1 (en) * | 2017-08-04 | 2019-02-07 | Citic Envirotech Ltd | Method and system for treatment of organic contaminants by coupling fenton reaction with membrane filtration |
| CN211620065U (en) * | 2019-12-17 | 2020-10-02 | 山西云海川环保科技有限公司 | Double-membrane self-cleaning membrane bioreactor based on Fenton reaction |
| CN211813629U (en) * | 2019-09-02 | 2020-10-30 | 南京万德斯环保科技股份有限公司 | Circulating fenton fluidized bed reaction equipment |
-
2021
- 2021-10-11 CN CN202111178804.7A patent/CN113816486A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103979663A (en) * | 2014-05-20 | 2014-08-13 | 南京大学 | Neutral composite bed Fenton reactor and sewage treatment method thereof |
| CN205419890U (en) * | 2016-03-16 | 2016-08-03 | 山东省环境保护科学研究设计院 | Take fragrant catalytic processing device of sewage of membrane module |
| US20190039929A1 (en) * | 2017-08-04 | 2019-02-07 | Citic Envirotech Ltd | Method and system for treatment of organic contaminants by coupling fenton reaction with membrane filtration |
| CN211813629U (en) * | 2019-09-02 | 2020-10-30 | 南京万德斯环保科技股份有限公司 | Circulating fenton fluidized bed reaction equipment |
| CN211620065U (en) * | 2019-12-17 | 2020-10-02 | 山西云海川环保科技有限公司 | Double-membrane self-cleaning membrane bioreactor based on Fenton reaction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101591064B (en) | Anaerobic built-in zero-valent iron reactor | |
| CN105731724B (en) | A kind of offshore platform life sewage treatment and reuse method with high salt | |
| CN102557359B (en) | Device for treating wastewater during production of pentaerythritol | |
| CN105693014A (en) | Sewage treatment system and sewage treatment method | |
| CN102718353A (en) | System of and method for advanced treatment of refractory industrial wastewater | |
| CN103524005A (en) | Combined type environment-friendly device using MVR-bipolar electrolysis-biological enhancement technology | |
| CN104310718A (en) | Device and method for treatment of high-concentration difficult-to-degrade organic waste water | |
| CN102161554A (en) | Anaerobic hydrolysis-acidification and anoxic-aerobic process-sequencing batch reactor (AO-SBR) integrated sewage treatment reaction tank | |
| CN109368746A (en) | A kind of high COD, difficult biochemical waste water pretreatment unit pretreatment system and method | |
| CN106630314A (en) | Treatment system for organic matters in petrochemical sewage reverse osmosis concentrated water and treatment method thereof | |
| WO2023072097A1 (en) | Fenton process and ceramic membrane filtering-integrated sewage treatment unit | |
| CN206345748U (en) | The processing system of the reverse osmosis concentrated Organic substance in water of petrifaction sewage | |
| CN210261483U (en) | Fresh landfill leachate treatment system | |
| CN211226806U (en) | Zero release processing system of cosmetics waste water | |
| CN108623102A (en) | A kind of combined type SBR-MBR-Fenton Pig raising wastewater processing methods | |
| CN210176665U (en) | Electrocatalytic oxidation treatment system for domestic sewage | |
| CN105712572A (en) | Method for treating preserved fruit wastewater on basis of membrane integration technologies | |
| CN113816486A (en) | Membrane Fenton fluidized bed reaction unit | |
| CN205328795U (en) | Wet spinning acrylic fibres production polymerization effluent disposal system | |
| CN205528260U (en) | Sewage treatment system | |
| CN207159049U (en) | One kind utilizes light electrolysis, anaerobism and BAF PROCESS FOR TREATMENT bamboo product waste plants | |
| CN201762170U (en) | Papermaking wastewater treatment apparatus | |
| CN102464431A (en) | Method for treating wastewater from diosgenin process | |
| CN203212428U (en) | Integrated device for advanced treatment of refractory industrial wastewater | |
| CN203568941U (en) | Combined environment-friendly equipment adopting MVR (Mechanical Bapor Recompression)-bipolar electrolysis-bioaugmentation technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211221 |
|
| RJ01 | Rejection of invention patent application after publication |