CN113292136A - Device for treating shale gas wastewater based on disc tube type reverse osmosis membrane - Google Patents
Device for treating shale gas wastewater based on disc tube type reverse osmosis membrane Download PDFInfo
- Publication number
- CN113292136A CN113292136A CN202110671399.6A CN202110671399A CN113292136A CN 113292136 A CN113292136 A CN 113292136A CN 202110671399 A CN202110671399 A CN 202110671399A CN 113292136 A CN113292136 A CN 113292136A
- Authority
- CN
- China
- Prior art keywords
- membrane
- water
- pressing plate
- shale gas
- flow guide
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/04—Tubular membranes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
Abstract
The invention discloses a device for treating shale gas wastewater based on a disc-tube reverse osmosis membrane, which comprises a shell, wherein an upper pressing plate and a lower pressing plate are arranged inside the shell, a central screw is vertically arranged at the central positions of the upper pressing plate and the lower pressing plate, a clear water outlet is arranged on the side surface of an upper positioning cushion block above the central screw, the upper plane of the upper pressing plate is respectively provided with a water inlet, a flushing water supply pipe and a concentrated solution outlet, a flushing drain pipe is arranged on the lower pressing plate, an S-shaped flow guide disc and a membrane are arranged between the upper pressing plate and the lower pressing plate, one end of the membrane is horizontally arranged between clamping blocks, springs are arranged at the contact positions of the clamping blocks and the membrane, a clear water channel is arranged between the clamping blocks and the central screw, the clear water channel extends upwards and is communicated with the clear water outlet, a plurality of convex points are uniformly arranged on the surface of the flow guide disc, and the membrane is horizontally arranged between the flow guide discs, the device has high interception rate of pollution, good purification effect, long service life of the membrane, easy maintenance and low investment and operation cost.
Description
Technical Field
The invention belongs to the technical field of water purification equipment, and particularly relates to a device for treating shale gas wastewater based on a disc tube type reverse osmosis membrane.
Background
Shale gas is an unconventional natural gas resource and has huge geological reserves. The fracturing process of exploiting shale gas needs to use a large amount of water, and taking a single shale gas horizontal well in the Sichuan basin in China as an example, the fracturing exploitation needs to use 2 to 3 ten thousand square meters of water. In the process of exploiting the shale gas, the hydraulic fracturing technology is used for fracturing underground rock formations and releasing the shale gas in the underground rock formations, and water injected into the rock formations can be flowback at different stages of gas production of the shale gas, so that the water is called produced water. At present, the volume fracturing technology of a slickwater system and the long-well-section horizontal well technology are the most widely applied technologies in shale gas exploitation sites. The produced water flowback stage has the defects of complex water quality and components, contains a large amount of high molecular polymers, carries with the produced water components and pollutants such as silt in the produced water, gradually increases the salinity mainly comprising sodium chloride, possibly contains heavy metals and radioactive elements in part of regional stratums and carries with the flowback of the produced water to the ground, and causes the risk of environmental pollution to soil and surface water due to improper disposal, thereby causing social problems.
Disclosure of Invention
In order to solve the problems, the invention discloses a device for treating shale gas wastewater based on a disc-tube reverse osmosis membrane, which has the advantages of high pollution rejection rate, good purification effect, long service life of the membrane, easiness in maintenance, and low investment and operation cost.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a device for treating shale gas wastewater based on a disc tube type reverse osmosis membrane comprises a circular shell, wherein an upper pressing plate and a lower pressing plate are arranged inside the shell, a central screw is vertically arranged at the central positions of the upper pressing plate and the lower pressing plate, nuts are arranged at the two ends of the central screw, an upper positioning cushion block is arranged between each nut and the upper pressing plate, a clear water outlet is arranged on the side surface of each upper positioning cushion block, a lower positioning cushion block is arranged between each nut and the lower pressing plate, a water inlet, a flushing water supply pipe and a concentrated solution outlet are respectively arranged on the upper plane of the upper pressing plate, a flushing drain pipe is arranged on the lower pressing plate, an S-shaped flow guide disc and a membrane are arranged between the upper pressing plate and the lower pressing plate, a water flowing channel is arranged between the upper pressing plate, the lower pressing plate, the S-shaped flow guide disc and the membrane, the membrane is a double-layer membrane, a water seepage cloth is arranged between the double-layer membrane, one end of the membrane is horizontally arranged between the clamping blocks, the spring is arranged at the contact position of the clamping block and the diaphragm, a clear water channel is arranged between the clamping block and the central screw rod, the clear water channel extends upwards and is communicated with a clear water outlet, a plurality of convex salient points are uniformly arranged on the surface of the flow guide plate, and the diaphragm is horizontally arranged between the flow guide plates.
Furthermore, control valves are arranged on the flushing water supply pipe and the flushing water drainage pipe.
Furthermore, the appearance shape of the salient points is a hemispherical surface.
Furthermore, the water flow channel is an open wide flow channel with the diameter of more than or equal to 3 mm.
Furthermore, a sealing ring is arranged between the upper pressure plate and the upper positioning cushion block.
Furthermore, a sealing ring is also arranged between the lower pressure plate and the lower positioning cushion block.
The invention discloses a use method of a device for treating shale gas wastewater based on a disc tube type reverse osmosis membrane, which comprises the following steps:
s1: purification of waste water
Shale gas wastewater enters from a water inlet, flows in an S-shaped flow guide disc through a water flowing channel, water purified by a membrane permeates into a clear water channel through a water seepage cloth and finally flows out of a clear water outlet, and residual wastewater, garbage and impurities are remained in the flow guide disc and finally flow out of a concentrated solution outlet;
s2: interior cleaning
The water is injected into the shell from the washing water supply pipe, the surface of the flow guide plate and the surface of the membrane are washed, finally the water flows out from the washing drain pipe, and the washing water supply pipe and the washing drain pipe are closed when the water is not used.
The invention has the beneficial effects that:
(1) the disc-tube reverse osmosis technology is adopted, so that the rejection rate of pollution is high, the influence of factors such as biodegradability of wastewater, carbon-nitrogen ratio and the like is avoided, and the disc-tube reverse osmosis method has great advantages for wastewater with high organic pollutant concentration.
(2) The surface of the flow guide disc is provided with a plurality of semicircular salient points, and the special hydraulic design ensures that the treatment liquid flows through the surface of the filter membrane under the action of pressure and forms turbulent flow when meeting the collision of the salient points, so that the permeation rate and the self-cleaning function are increased, the phenomena of membrane blockage and concentration polarization are effectively avoided, and the service life of the membrane is successfully prolonged; the scale on the membrane is easy to clean during cleaning, and the disc-tube membrane group is ensured to be suitable for severe water inlet conditions.
(3) The disc tube type reverse osmosis (DTRO) component is provided with a 3 mm open wide flow channel and a unique flow guide disc with salient points, feed liquid forms a turbulent flow state in the component, the generation of scaling, pollution and concentration polarization on the surface of a membrane is reduced to the greatest extent, and the service life of the reverse osmosis membrane is prolonged; and the membrane is easy to clean, and the flux recovery performance after cleaning is very good, so that the service life of the membrane is prolonged. The practical project shows that the service life of the DTRO is as long as more than 5 years.
(4) The DTRO membrane module adopts standardized design, and the subassembly is easy to be dismantled and is maintained, opens the DTRO subassembly and can easily inspect and maintain any diaphragm and other parts, and the maintenance is simple, and when spare part quantity was not enough, the subassembly allowed to adorn some diaphragms and guiding discs less and does not influence the use of DTRO membrane module, and this is that other forms membrane module can't reach.
(5) On the premise of reaching high-level discharge standard, compared with other processes, the disc-tube reverse osmosis technology has the advantages of shortest process flow, lowest energy consumption, low investment and operation cost and small occupied area, and in the treatment process which can also reach the new standard, the operation cost of the two-stage DTRO is far lower than that of other treatment processes.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
List of reference numerals:
1. the device comprises a shell, 2, an upper pressing plate, 3, a lower pressing plate, 4, a central screw rod, 5, a nut, 6, an upper positioning cushion block, 7, a clean water outlet, 8, a lower positioning cushion block, 9, a water inlet, 10, a flushing water supply pipe, 11, a concentrated solution outlet, 12, a flushing water discharge pipe, 13, a flow guide disc, 14, a membrane, 15, a water flowing channel, 16, a clamping block, 17, a spring, 18, a clean water channel, 19, salient points, 20, a control valve, 21 and a sealing ring.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in the figure, the device for treating shale gas wastewater based on the disc-tube reverse osmosis membrane comprises a circular shell 1, wherein an upper pressure plate 2 and a lower pressure plate 3 are arranged inside the shell 1, a central screw rod 4 is vertically arranged at the central positions of the upper pressure plate and the lower pressure plate, nuts 5 are arranged at two ends of the central screw rod 4, an upper positioning cushion block 6 is arranged between the nuts 5 and the upper pressure plate 2, a clear water outlet 7 is arranged on the side surface of the upper positioning cushion block 6, a lower positioning cushion block 8 is arranged between the nuts 5 and the lower pressure plate 3, a water inlet 9, a flushing water supply pipe 10 and a concentrated solution outlet 11 are respectively arranged on the upper plane of the upper pressure plate, a flushing drain pipe 12 is arranged on the lower pressure plate 3, an S-shaped flow guide disc 13 and a diaphragm 14 are arranged between the upper pressure plate 2 and the lower pressure plate 3, a water flow passage 15 is arranged between the S-shaped flow guide disc 13 and the diaphragm 14, the diaphragm 14 is double-deck diaphragm, is equipped with the cloth that oozes water between the double-deck diaphragm, 14 one end level of diaphragm sets up between clamp splice 16, the contact department of clamp splice 16 and diaphragm 14 is equipped with spring 17, be equipped with clear water course 18 between clamp splice 16 and the central screw rod 4, clear water course 18 up extends and is linked together with clear water export 7, deflector 13 surface align to grid has a plurality of convex bumps 19, diaphragm 14 level sets up between deflector 13.
The working principle is as follows:
shale gas wastewater enters from a water inlet 9, flows in an S-shaped flow guide disc 13 through a water flowing channel 15, water purified by a membrane 14 permeates into a clear water channel 18 through a water permeable cloth, finally flows out of a clear water outlet 7, and the rest wastewater, garbage and impurities stay in the flow guide disc 13 and finally flows out of a concentrated solution outlet 11, because a plurality of convex semicircular salient points 19 are uniformly arranged on the surface of the flow guide disc 13, turbulence is formed when the water flows through the salient points under the action of pressure and collides with the salient points, and simultaneously because one end of the membrane 14 is suspended and the other end of the membrane is provided with a spring 17, the membrane can vibrate when encountering the turbulent membrane, the permeation rate and the self-cleaning function are increased, the phenomena of membrane blockage and concentration polarization are avoided, and the service life of the membrane is successfully prolonged; the scale on the membrane is easy to clean during cleaning, and the disc-tube membrane group is ensured to be suitable for severe water inlet conditions.
In addition, the invention is also provided with a self-cleaning function
The water is injected into the shell from the flushing water supply pipe 10, the surface of the flow guide disc 13 and the surface of the diaphragm 14 are flushed, and finally the water flows out from the flushing water discharge pipe 12, and the control valve 20 of the flushing water supply pipe 10 and the flushing water discharge pipe 12 is closed when the water is not used.
And a sealing ring 21 is arranged between the upper pressure plate 2 and the upper positioning cushion block 6, and a sealing ring is also arranged between the lower pressure plate 3 and the lower positioning cushion block 8, so that the water tightness is ensured.
The invention adopts a disc tube type reverse osmosis (DTRO) technology to have high pollution rejection rate and stable performance, is not influenced by factors such as waste water biodegradability, carbon-nitrogen ratio and the like, and has great advantages for waste water with high organic pollutant concentration.
The disc tube type reverse osmosis component is provided with a 3 mm open wide flow channel and a unique flow guide disc with salient points, feed liquid forms a turbulent flow state in the component, the generation of scaling, pollution and concentration polarization phenomena on the surface of a membrane is reduced to the greatest extent, and the service life of the reverse osmosis membrane is prolonged; and the membrane is easy to clean, and the flux recovery performance after cleaning is very good, so that the service life of the membrane is prolonged. The practical project shows that the service life of the DTRO is as long as more than 5 years, the diaphragm can be independently replaced, the cost is low, the occupied area is small, and the DTRO is worthy of popularization.
The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features.
Claims (7)
1. The utility model provides a device based on dish tubular reverse osmosis membrane handles shale gas waste water which characterized in that: the water-permeable membrane water-saving device comprises a circular shell, wherein an upper pressing plate and a lower pressing plate are arranged inside the shell, a central screw is vertically arranged at the central positions of the upper pressing plate and the lower pressing plate, nuts are arranged at two ends of the central screw, an upper positioning cushion block is arranged between the nuts and the upper pressing plate, a clear water outlet is arranged on the side surface of the upper positioning cushion block, a lower positioning cushion block is arranged between the nuts and the lower pressing plate, a water inlet, a flushing water supply pipe and a concentrated solution outlet are respectively arranged on the upper plane of the upper pressing plate, a flushing drain pipe is arranged on the lower pressing plate, an S-shaped flow guide disc and a membrane are arranged between the upper pressing plate and the lower pressing plate, a water flowing channel is arranged among the upper pressing plate, the lower pressing plate, the S-shaped flow guide disc and the membrane, the membrane is a double-layer membrane, water-permeable cloth is arranged between the double-layer membrane, one end of the membrane is horizontally arranged between clamping blocks, a spring is arranged at the contact position of the clamping blocks and the membrane, a clear water flowing channel is arranged between the clamping blocks and the central screw, the clear water channel extends upwards and is communicated with the clear water outlet, a plurality of convex points are uniformly arranged on the surface of the flow guide plate, and the membrane is horizontally arranged between the flow guide plates.
2. The device of claim 1, which is based on that a dish tubular reverse osmosis membrane is used for treating shale gas waste water, and is characterized in that: and control valves are arranged on the flushing water supply pipe and the flushing water discharge pipe.
3. The device of claim 1, which is based on that a dish tubular reverse osmosis membrane is used for treating shale gas waste water, and is characterized in that: the appearance shape of the salient points is a hemispherical surface.
4. The device of claim 1, which is based on that a dish tubular reverse osmosis membrane is used for treating shale gas waste water, and is characterized in that: the water flow channel is an open wide flow channel with the diameter of more than or equal to 3 mm.
5. The device of claim 1, which is based on that a dish tubular reverse osmosis membrane is used for treating shale gas waste water, and is characterized in that: and a sealing ring is arranged between the upper pressure plate and the upper positioning cushion block.
6. The device of claim 1, which is based on that a dish tubular reverse osmosis membrane is used for treating shale gas waste water, and is characterized in that: and a sealing ring is also arranged between the lower pressing plate and the lower positioning cushion block.
7. The use method of the device for treating shale gas wastewater based on the disc-tube reverse osmosis membrane according to claim 1 is characterized in that: the method comprises the following steps:
s1: purification of waste water
Shale gas wastewater enters from a water inlet, flows in an S-shaped flow guide disc through a water flowing channel, water purified by a membrane permeates into a clear water channel through a water seepage cloth and finally flows out of a clear water outlet, and residual wastewater, garbage and impurities are remained in the flow guide disc and finally flow out of a concentrated solution outlet;
s2: interior cleaning
The water is injected into the shell from the washing water supply pipe, the surface of the flow guide plate and the surface of the membrane are washed, finally the water flows out from the washing drain pipe, and the washing water supply pipe and the washing drain pipe are closed when the water is not used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110671399.6A CN113292136A (en) | 2021-06-17 | 2021-06-17 | Device for treating shale gas wastewater based on disc tube type reverse osmosis membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110671399.6A CN113292136A (en) | 2021-06-17 | 2021-06-17 | Device for treating shale gas wastewater based on disc tube type reverse osmosis membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113292136A true CN113292136A (en) | 2021-08-24 |
Family
ID=77328605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110671399.6A Pending CN113292136A (en) | 2021-06-17 | 2021-06-17 | Device for treating shale gas wastewater based on disc tube type reverse osmosis membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113292136A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115304133A (en) * | 2022-10-11 | 2022-11-08 | 中节能润达(烟台)环保股份有限公司 | Garbage penetrating fluid treatment equipment |
-
2021
- 2021-06-17 CN CN202110671399.6A patent/CN113292136A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115304133A (en) * | 2022-10-11 | 2022-11-08 | 中节能润达(烟台)环保股份有限公司 | Garbage penetrating fluid treatment equipment |
| CN115304133B (en) * | 2022-10-11 | 2022-12-20 | 中节能润达(烟台)环保股份有限公司 | Garbage penetrating fluid treatment equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105839755B (en) | A kind of introduction of Roof Rainwater Harvesting System | |
| CN105735449B (en) | A kind of urban road rainwater collecting and treating system | |
| CN206428084U (en) | A kind of garbage leachate treatment device | |
| CN203425572U (en) | Upflow double-type deep-bed rapid filtering tank | |
| CN113292136A (en) | Device for treating shale gas wastewater based on disc tube type reverse osmosis membrane | |
| CN204039126U (en) | A kind of membrane bioreactor | |
| CN218174706U (en) | Device for treating shale gas wastewater based on disc tube type reverse osmosis membrane | |
| CN201357054Y (en) | Membrane module operating device with bidirectional washing function | |
| CN108328698A (en) | A kind of continuous filter sewage device of graphene film and filter method | |
| CN203329467U (en) | Rotary table filter tank | |
| CN201760140U (en) | Improved sewage filter | |
| CN208869359U (en) | A kind of continuous filter sewage device of graphene film | |
| CN204509018U (en) | Metal finishing Sewage advanced treatment and reclaiming system | |
| KR100760969B1 (en) | Apparatus for treating rainfall and method of treating the rainfall | |
| CN105174645A (en) | Practical waste water treatment energy-saving equipment and waste water treatment method | |
| CN107129075B (en) | Multi-module coupling treatment system and method for coal mine goaf water utilization | |
| CN202322457U (en) | Combined-type water purifier | |
| CN211770637U (en) | Groundwater pollution's prosthetic devices | |
| CN101254371A (en) | Industry water-filtering apparatus | |
| CN203976445U (en) | The dense apparatus for recovering of a kind of pulsed reverse osmosis membrane system | |
| CN210048627U (en) | Urban river sewage treatment recycles device | |
| CN212669284U (en) | Membrane pool with sludge concentration function | |
| CN211141667U (en) | Optimized softened resin filtering and purifying device | |
| CN203329470U (en) | Cleaning sludge-discharge structure in rotary table filter tank | |
| CN103055573B (en) | Concentrated filtering device and cleaning method of filter elements |
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 |