CN217516736U - Complete EHBR process sewage treatment plant - Google Patents
Complete EHBR process sewage treatment plant Download PDFInfo
- Publication number
- CN217516736U CN217516736U CN202221310276.6U CN202221310276U CN217516736U CN 217516736 U CN217516736 U CN 217516736U CN 202221310276 U CN202221310276 U CN 202221310276U CN 217516736 U CN217516736 U CN 217516736U
- Authority
- CN
- China
- Prior art keywords
- membrane
- aeration
- ehbr
- frame
- main pipe
- 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.)
- Active
Links
Images
Landscapes
- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model discloses a complete set EHBR technology sewage treatment plant, the device comprises a plurality of membrane module units, membrane aeration systems, membrane purge system and membrane frame, the membrane module unit set up in on the membrane frame, membrane purge system set up in the lower part of membrane frame, membrane purge system is used for right the membrane module unit blows, membrane aeration systems with membrane module unit connects, membrane aeration systems be used for to membrane module unit air feed. The utility model discloses a device uses heavy ion microporous membrane as the microorganism carrier, and equipment module ization installation has oxygen mass transfer efficient, and the pollutant is got rid of effectual, the equipment is easily assembled, advantage that the input cost is low.
Description
Technical Field
The utility model relates to a water treatment field especially relates to a complete set EHBR technology sewage treatment plant.
Background
An EHBR (enhanced Hybrid Biofilm reactor) reinforced coupling Biofilm reactor is a novel sewage treatment technology which combines a gas separation membrane technology and a Biofilm water treatment technology, the core part of the EHBR (enhanced Hybrid Biofilm reactor) reinforced coupling Biofilm reactor comprises a hollow fiber membrane and a Biofilm, and the Biofilm is attached to and grows on the outer surface of the oxygen-permeable hollow fiber membrane and is used as a carrier of microorganisms. The air passes through the hollow fiber membrane and is the direct oxygen suppliment of biomembrane, and oxygen passes through the membrane chamber and transmits to the microbial film layer of adhering to growth on ventilated membrane surface, and the biomembrane fully contacts with sewage, and when sewage flowed around, the pollutant in the water gets into the biomembrane under effects such as concentration drive and microbial adsorption, through biological metabolism and hyperplasia, pollutants such as organic matter and nitrogen phosphorus that contain in the sewage are adsorbed and are decomposed by the biomembrane and get rid of to make sewage obtain purifying. Oxygen and pollutants are reversely transferred in the EHBR biological membrane to form a special biological membrane layered structure which comprises an aerobic environment and an anoxic environment from inside to outside, so that the special sewage treatment effect of the EHBR is achieved. The EHBR hollow fiber membrane is made of a composite polymer material with oxygen permeability and microbial affinity. The basic equipment unit of the prior EHBR application is a hollow fiber membrane component, and is made of a semi-hydrophobic polymer composite material with oxygen permeability and microbial affinity.
EHBR hollow fiber membrane device case: the membrane module device generally comprises membrane frames, the plane size of the membrane frames is related to the number of the placed membranes, a fixed number of membranes are placed in one membrane frame to form a membrane stack, and the membrane frames are generally made of stainless steel or UPVC and the like. The diaphragm is arranged into curtain form by a certain amount of hollow fiber membrane silk, the mode of placing the diaphragm is that the membrane silk is placed perpendicularly, the diaphragm is connected with fixed trachea, the unit interval between diaphragms is generally not less than 100 mm. In order to ensure that the membrane filaments are protected, the membrane module device is required to ensure that the membrane filaments are always in a natural vertical loose state. The bottom of the membrane frame is provided with a perforated or microporous aerator, air is uniformly blown out from bottom to top by the aerator, upward airflow can be generated inside the membrane component, membrane filaments can continuously swing, and the effects of removing accumulated mud and controlling the thickness of a biological membrane are achieved through the scouring action of the airflow.
The existing EHBR has the technical characteristics that: (1) when the gas partial pressure is kept below the bubble point of the membrane component, the microorganism is supplied with oxygen in a bubble-free aeration mode, so that the aeration efficiency is improved; (2) the multifunctional biological membrane has heterotrophic oxidation, synchronous nitrification and denitrification functions at the same time; (3) the microorganisms are enriched on the surface of the membrane and cannot be lost along with the flow of the water body.
In the existing sewage treatment equipment, the EHBR membrane device has the following defects:
(1) hollow fiber membranes or homogeneous dense membranes are often used as microbial carriers. As the use time of the hollow fiber membrane increases, micropores can be attached and blocked by microorganisms and secretion thereof, so that membrane pores are polluted and blocked, and the mass transfer resistance of gas increases sharply; the homogeneous compact membrane is a selective permeable membrane, the transfer of oxygen is completely controlled by the dissolution diffusion coefficient of the membrane material, and the mass transfer efficiency of the oxygen is relatively low;
(2) the effect of removing pollutants is not ideal, and the sewage treatment efficiency is still not high;
(3) a larger ton of water membrane area is needed, and the cost is higher;
(4) the device has low integration level and cannot be quickly installed and used;
(5) the membrane silk material is smooth, so that the biological membrane is not easy to adhere, and the biochemical debugging starting time is longer;
(6) the membrane yarn is fragile and easy to break, which causes uneven air distribution in operation.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a complete set EHBR technology sewage treatment plant, the utility model discloses a device uses heavy ion microporous membrane as the microorganism carrier, and equipment module ization installation has oxygen mass transfer efficiency height, gets rid of effectual, the equipment easily assembles, the advantage that the input cost is low.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the complete EHBR technology sewage treatment plant is composed of a plurality of membrane component units, a membrane aeration system, a membrane purging system and a membrane frame, wherein the membrane component units are arranged on the membrane frame, the membrane purging system is arranged at the lower part of the membrane frame, the membrane purging system is used for intermittently purging the sludge accumulated on the membrane component units, the membrane aeration system is connected with the membrane component units, and the membrane aeration system is used for supplying gas to the membrane component units.
Furthermore, the membrane module unit comprises a heavy ion microporous membrane tube, two ends of the heavy ion microporous membrane tube are fixed by membrane tube fixing parts, and one end of the heavy ion microporous membrane tube is provided with an air inlet.
Furthermore, the left-right distance between the membrane module units is not less than 10mm, and the up-down distance between the membrane module units is not less than 10 mm.
Furthermore, the membrane aeration system comprises an air compressor, an aeration main pipe connected with the air compressor, and a plurality of aeration branch pipes connected with the aeration main pipe, wherein the air inlet of the membrane component unit is connected with the aeration branch pipes.
Furthermore, the front end of the aeration branch pipe is sequentially provided with a valve and a pressure gauge, and the front end of the aeration main pipe is provided with a gas flowmeter and a main valve.
Further, the membrane purging system comprises a bottom perforated pipe, a membrane purging main pipe and an aeration fan, wherein the bottom perforated pipe is positioned at the lower part of the membrane module unit and is connected with the membrane purging main pipe; the membrane blowing main pipe is connected with an aeration fan, and a gas flowmeter and a valve are sequentially arranged at the front end of the membrane blowing main pipe.
Furthermore, the membrane frame is a stainless steel or other corrosion-resistant material frame, and the bottom of the membrane frame is provided with a perforated pipe and a support.
Adopt the technical scheme of the utility model, following beneficial effect has:
(1) the heavy ion microporous membrane is taken as a microbial carrier, so that the oxygen supply device has good oxygen transmission performance and high oxygen supply efficiency;
(2) can efficiently and synchronously carry out nitrification and denitrification, and has high efficiency of removing COD, BOD, ammonia nitrogen and total nitrogen;
(3) the EHBR membrane tube has good microbial affinity, more highly enriched microorganisms, longer biological chain, small required ton water membrane area and low equipment investment cost;
(4) the equipment modularization, the installation is simple, convenient, and construction cycle is short.
(5) The EHBR heavy ion microporous membrane has a thicker pipe diameter than a hollow fiber membrane, the surface of the membrane is provided with a support material layer, the membrane is relatively coarse, a biological membrane is easy to grow and attach, and biochemical debugging and starting are quick.
(6) The EHBR heavy ion microporous membrane is formed by winding materials such as PET non-gauze and other composite materials as a supporting layer, so that the EHBR heavy ion microporous membrane has super wear resistance, flexibility and supporting effect, and is long in service life and beneficial to stable operation of a system.
Drawings
FIG. 1 is a schematic structural diagram of the device of the present invention;
fig. 2 is a schematic structural diagram of the membrane module unit of the present invention.
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, but do not constitute limitations to the scope of the present invention.
Referring to fig. 1 and 2, the utility model provides a complete set of EHBR process sewage treatment device, which comprises a membrane module unit, a membrane aeration system, a membrane purging system and a membrane frame; the membrane component unit is arranged on the membrane frame, the membrane purging system is arranged at the lower part of the membrane frame, the membrane purging system is used for intermittently purging accumulated mud of the membrane component unit, the membrane aeration system is connected with the membrane component unit, and the membrane aeration system is used for supplying gas to the membrane component unit; specifically, the method comprises the following steps:
as shown in fig. 2, the membrane module unit 100 adopts a heavy ion microporous membrane tube 10, and two ends of the heavy ion microporous membrane tube are fixed by a membrane tube fixing part 11, wherein one end of the fixing part is provided with an air inlet 12; the heavy ion microporous membrane has the length of 0.5-2 m, the pipe diameter of 2-8 mm and the pipe center distance of not less than 10mm, and the number and the size can be flexibly adjusted according to the actual application condition; the left-right distance between the membrane module units is not less than 10mm, and the up-down distance between the membrane module units is not less than 10 mm.
The membrane aeration system comprises an air compressor 20, a gas flowmeter 21, a pressure gauge 22, a valve 23, an aeration main pipe 24 and an aeration branch pipe 25; in the depth direction, the air inlets of all the rows of membrane component units are respectively connected by a transverse membrane aeration branch pipe; the front end of each membrane aeration branch pipe is sequentially provided with a valve 23 and a pressure gauge 22; each membrane aeration branch pipe 25 is connected with the main aeration pipe 24; the aeration main pipe 24 is connected with the air compressor 20, and is provided with a gas flow meter 21 and a main valve 27 in sequence at the front end.
The membrane purging system comprises a bottom perforated pipe 30, a membrane purging main pipe 31 and an aeration fan 32. The bottom perforated pipe 30 is positioned below the membrane group and is connected with a membrane purging main pipe 31; the membrane purging main pipe 31 is connected to an aeration fan 32, and a gas flow meter 21 and a valve 23 are sequentially provided at the front end.
The membrane frame 40 adopts a stainless steel frame as a main body, a perforated pipe bracket 41 is arranged at the bottom, and the size of the membrane frame is adjusted according to the number and the size of the membrane module units.
The utility model discloses complete set EHBR technology sewage treatment plant's theory of operation as follows:
the membrane component unit consists of heavy ion microporous membrane tubes, microbial membranes are attached to the surfaces of the heavy ion microporous membrane tubes, sewage enters the device and is fully contacted with the biological membranes, when the gas partial pressure is kept below the bubble point of the membrane component, the air compressor supplies air to the membrane component through the membrane aeration main tube and the membrane aeration branch tube in a bubble-free aeration mode, and the air inflow and the air pressure of the membrane component with the same depth are controlled by a valve and a flow meter on the aeration branch tube, so that the uniform air supply of the membrane component in different depth directions is ensured.
Oxygen in the membrane cavity is diffused into the biological membrane under the driving of pressure difference, and pollutants enter the biological membrane under the actions of concentration driving, biological membrane adsorption and the like. In the biological film, because the transfer direction of oxygen and the transfer direction of pollutant are completely opposite, and the concentration gradient of oxygen and pollutant is just opposite, a unique layered structure is formed in the biological film, and then different functional areas are formed, and the biological film forms an aerobic environment, an anoxic environment or even an anaerobic environment from inside to outside. The high oxygen concentration and the low organic carbon concentration at the interface of the aeration membrane and the biological membrane can enable the nitrifying bacteria to better play a role. The oxygen concentration and the organic carbon concentration of the layer outside the layer are both higher, which is beneficial to the oxidative decomposition of the organic carbon. At the interface of the biological membrane and the sewage, the oxygen concentration is lower, the organic carbon concentration is high, and the denitrification reaction can be well carried out. The system can simultaneously carry out biological adsorption, heterotrophic oxidation, nitration and denitrification reactions and even short-cut nitration and denitrification, thereby realizing the high-efficiency removal of pollutants.
The bottom perforated pipe is located membrane group below, by aeration fan air feed, valve and flowmeter control aeration rate size, and aeration fan sends gas to the bottom perforated pipe and sweeps the membrane group intermittently, ensures that membrane pipe surface or membrane pipe clearance deposit mud can in time drop, avoids the dirty stifled condition in membrane pipe surface to take place, promotes simultaneously to control biofilm thickness and update.
The novel sewage treatment device adopts the heavy ion microporous membrane tube to replace a hydrophobic hollow fiber membrane or a homogeneous compact membrane in the prior art, the heavy ion microporous membrane is also called a nuclear pore membrane, and is fully called a nuclear track etching microporous membrane, high-energy heavy ions or fission fragments are used for bombarding insulating materials (plastics, PET, PC and the like), pore channels with the diameter of about 2nm are generated in the materials, and the pore channels are expanded by a chemical etching method, so that the heavy ion microporous membranes with different pore diameters are obtained. The heavy ion microporous membrane is the most precise microporous membrane in the world, the membrane thickness ranges from 5 to 120 mu m, the pore diameter ranges from 0.22 to 40 mu m, and the pore density ranges from 1 multiplied by 10 7 ～1×10 9 Per cm 2 。
The heavy ion microporous membrane tube is a cylindrical tube membrane formed by winding a membrane surface layer formed by insulating material pores and a supporting layer, the overlapped part is sealed by ultrasonic welding, the heavy ion microporous membrane layer is compounded on the inner side of the supporting layer in a hot pressing way, pore channels for screening are distributed in the heavy ion microporous membrane layer, the inner diameter of the tube is more than 2mm, generally 6mm, and the thickness of the tube wall is more than or equal to 10 mm.
On one hand, the membrane component of the utility model uses the heavy ion microporous membrane, has good microorganism affinity, can achieve good membrane hanging effect, has more microorganisms attached than the conventional EHBR membrane, has longer biological chain and larger contact surface with sewage; on the other hand, oxygen is supplied to the microorganisms through the membrane cavity in a bubble-free aeration mode, the oxygen supply efficiency is high, the concentration gradients of oxygen and pollutants are just opposite, a unique layered structure appears in the biological membrane, synchronous nitrification and denitrification and even short-range nitrification and denitrification can be efficiently realized, organic matters, nitrogen, phosphorus and other pollutants in water are utilized by the microorganisms, the pollutants in the water are assimilated into microbial thalli which are fixed on the biological membrane or decomposed into inorganic metabolites, and thus the water is purified; the effect of removing pollution indexes such as COD, BOD, ammonia nitrogen, total phosphorus and the like in the sewage is very good, so that higher sewage treatment efficiency can be realized in the EHBR reaction tank.
The utility model discloses because its unique microporous membrane and structural feature to through relevant experiment proof: laying 6-12 m per ton of sewage 2 The membrane area of the EHBR membrane module (the ton water unit membrane area of the conventional hollow fiber EHBR membrane is generally 15-30 m 2 ) The invention can ensure that the EHBR technology can keep good treatment effect, therefore, the membrane component of the invention can be used as the EHBR technology, which can greatly reduce the required raw materials and reduce the investment cost.
The utility model discloses equipment module ization, simple structure, a membrane module unit can be according to handling water yield, quality of water adjustment quantity as basic module, and the direct stack of membrane module unit is fixed on the die carrier, need not to punch and bolt, and the installation is simple, convenient, and construction cycle is short.
The utility model discloses a heavy ion micropore membrane pipe as EHBR membrane, twine into a cylindric membrane pipe by the membrane top layer and the supporting layer of insulating material pore-forming, and coincidence department is sealed with ultrasonic bonding, and heavy ion micropore rete hot pressing is compound in the inboard of supporting layer, and the pore that has the screening effect distributes in the heavy ion micropore rete. The supporting layer on the outer side is formed by winding gauze-free and other composite materials, so that the pore channel on the surface layer of the membrane is reserved, the hardness and toughness of the membrane tube are guaranteed, the membrane tube is not easy to break and stretch, the problem that the conventional hollow fiber EHBR membrane is easy to break in sewage treatment is well solved, and the continuous and stable operation effect of the device is guaranteed.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (7)
1. A complete set EHBR technology sewage treatment plant which characterized in that: the device comprises a plurality of membrane module units, a membrane aeration system, a membrane purging system and a membrane frame, wherein the membrane module units are arranged on the membrane frame, the membrane purging system is arranged on the lower part of the membrane frame and used for blowing air to the membrane module units, the membrane aeration system is connected with the membrane module units, and the membrane aeration system is used for supplying air to the membrane module units.
2. The integrated EHBR process wastewater treatment plant of claim 1, wherein: the membrane module unit comprises a heavy ion microporous membrane tube, two ends of the heavy ion microporous membrane tube are fixed by membrane tube fixing parts, and one end of the heavy ion microporous membrane tube is provided with an air inlet.
3. The plant of claim 2, wherein the EHBR process further comprises: the left-right distance of the membrane component units is not less than 10mm, and the up-down distance of the membrane component units is not less than 10 mm.
4. The plant of claim 3, wherein the EHBR process wastewater treatment plant comprises: the membrane aeration system comprises an air compressor, an aeration main pipe connected with the air compressor, and a plurality of aeration branch pipes connected with the aeration main pipe, wherein the air inlet of the membrane component unit is connected with the aeration branch pipes.
5. The plant of claim 4, wherein the EHBR process wastewater treatment plant comprises: the front end of the aeration branch pipe is sequentially provided with a valve and a barometer, and the front end of the aeration main pipe is provided with a gas flowmeter and a main valve.
6. The EHBR process wastewater treatment plant of claim 5, wherein: the membrane purging system comprises a bottom perforated pipe, a membrane purging main pipe and an aeration fan, wherein the bottom perforated pipe is positioned at the lower part of the membrane module unit and is connected with the membrane purging main pipe; the membrane blowing main pipe is connected with an aeration fan, and a gas flowmeter and a valve are sequentially arranged at the front end of the membrane blowing main pipe.
7. The plant of claim 6, wherein the EHBR process further comprises: the membrane frame is a stainless steel or corrosion-resistant material frame, and the bottom of the membrane frame is provided with a perforated pipe and a support thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221310276.6U CN217516736U (en) | 2022-05-27 | 2022-05-27 | Complete EHBR process sewage treatment plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221310276.6U CN217516736U (en) | 2022-05-27 | 2022-05-27 | Complete EHBR process sewage treatment plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217516736U true CN217516736U (en) | 2022-09-30 |
Family
ID=83389200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221310276.6U Active CN217516736U (en) | 2022-05-27 | 2022-05-27 | Complete EHBR process sewage treatment plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217516736U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116495838A (en) * | 2023-06-27 | 2023-07-28 | 西北农林科技大学深圳研究院 | Nuclear pore membrane structure for sewage purification |
-
2022
- 2022-05-27 CN CN202221310276.6U patent/CN217516736U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116495838A (en) * | 2023-06-27 | 2023-07-28 | 西北农林科技大学深圳研究院 | Nuclear pore membrane structure for sewage purification |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Semmens et al. | COD and nitrogen removal by biofilms growing on gas permeable membranes | |
| US9556046B2 (en) | Membrane supported biofilm apparatus | |
| US7118672B2 (en) | Membrane supported bioreactor for municipal and industrial wastewater treatment | |
| CN101234817A (en) | Film carrier foamless oxygen supply biological film reactor and organic waste water treatment method | |
| CN210855445U (en) | MABR membrane aeration bioreactor | |
| CN107601671B (en) | Non-aeration baffling type synchronous nitrification and denitrification wastewater treatment system and method | |
| CN109928488B (en) | River aeration membrane assembly, aeration membrane system and method | |
| Yamagiwa et al. | A new oxygen supply method for simultaneous organic carbon removal and nitrification by a one-stage biofilm process | |
| CN217516736U (en) | Complete EHBR process sewage treatment plant | |
| CN104229979B (en) | MBR denitrification integrated device and application thereof | |
| CN111018101B (en) | Membrane biofilm culture domestication process and membrane biofilm reaction device for treating high-salinity wastewater | |
| CN112358029A (en) | Novel biological composite filler and preparation method and application thereof | |
| CN216005353U (en) | Composite membrane oxygen control bioreactor | |
| CN111661920B (en) | Application of biofilm reactor | |
| CN110950489A (en) | Intelligent integrated treatment equipment and process for domestic sewage in expressway service area | |
| CN113772816A (en) | Membrane bioreaction experimental device for waste membrane aeration membrane | |
| CN114275897A (en) | Denitrification system and starting method thereof | |
| CN209906431U (en) | River course aeration membrane subassembly and aeration membrane system | |
| CN212712911U (en) | Black and odorous water body treatment device | |
| CN219194678U (en) | High-efficient heavy ion microporous membrane MABR subassembly device | |
| CN213707864U (en) | Biofilm reactor and unit thereof | |
| CN219194667U (en) | Improved membrane aeration biological membrane reactor | |
| CN111660615B (en) | Hollow breathable composite membrane tube with internal oxygen supply function and preparation method thereof | |
| CN220056585U (en) | Be applicable to aquaculture trade denitrogenation integration equipment | |
| Terada et al. | Fibrous support stabilizes nitrification performance of a membrane-aerated biofilm: The effect of liquid flow perturbation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |