CN210419372U - Tubular membrane treatment system for pretreatment of garbage penetrating fluid - Google Patents
Tubular membrane treatment system for pretreatment of garbage penetrating fluid Download PDFInfo
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- CN210419372U CN210419372U CN201921148015.7U CN201921148015U CN210419372U CN 210419372 U CN210419372 U CN 210419372U CN 201921148015 U CN201921148015 U CN 201921148015U CN 210419372 U CN210419372 U CN 210419372U
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Abstract
The utility model relates to a tubular membrane processing system for refuse leachate preliminary treatment, including former water pitcher, tubular membrane group and product water tank, tubular membrane group is equipped with into water end, product water end and dense water end, wherein: the water inlet end is communicated with the raw water tank through a water inlet pipe and a circulating pump, the concentrated water end of the tubular membrane group is provided with a concentrated water pressure gauge, the concentrated water end comprises a first concentrated water end and a second concentrated water end, the first concentrated water end is communicated with the water inlet pipe connected with the water inlet end of the circulating pump through a first return pipe, the first return pipe is provided with a circulating control valve and a circulating liquid flowmeter, and the second concentrated water end is connected with a concentrated water collecting pipe provided with a concentrated water discharge valve and a concentrated water flowmeter; the tubular membrane group is equipped with at the product water end and produces the water flowmeter, produces the water end and includes first product water end, and first product water end is through installing the product water pipe and the product water tank intercommunication of producing the water drain valve. The utility model provides a new tubular membrane processing system does preliminary treatment cooperation DTRO membrane technology, effectual processing rubbish penetrant.
Description
Technical Field
The utility model relates to a waste water treatment technical field, concretely relates to tubular membrane processing system for refuse leachate preliminary treatment.
Background
The landfill leachate is high-concentration organic wastewater with high ammonia nitrogen concentration, serious imbalance of nutrition proportion and low biochemical degradability. With the implementation of the standard for controlling pollution of domestic garbage landfill (GB16889-2008), the standard is difficult to reach by only relying on the traditional biochemical treatment method. The membrane separation technology has the obvious advantages of small influence of raw water quality, stable effluent quality, small occupied area and the like in the field of landfill leachate treatment, and is increasingly widely applied.
The initial membrane technology is applied to a garbage penetrating fluid treatment system, is applied to the traditional biochemical process, is mostly applied to an MBR process, and is used for effectively separating sludge and water under the condition of high biochemical reaction sludge concentration.
But when the effluent of the MBR can not meet the requirements of discharge standards, a Nanofiltration (NF) process and a Reverse Osmosis (RO) process are added after the MBR. The effluent of the biochemical and membrane process can meet the requirement of discharge standard, but has high investment, large floor area, high operating cost and long construction period. Especially, the former biochemical treatment process generally occupies a large area; a large amount of civil engineering is matched, and the construction period is very long; the process parameters are not easy to control in the operation, and the operation is unstable.
In recent years, the disk-and-tube reverse osmosis (DTRO) process has found widespread use in the treatment of landfill permeate. Such processes typically include simple sand filtration plus two-stage DTRO. The treatment process can omit a biochemical treatment process, and directly treat the garbage penetrating fluid, and the generated penetrating fluid meets the requirement of a discharge standard and can be directly discharged; the produced concentrated solution can be reduced by about seventy percent and can be recharged to a garbage pile for digestion treatment. The new process has the advantages of small occupied area, short construction period and stable water outlet, thereby being rapidly popularized.
However, since the landfill leachate is a high pollutant, high salt content wastewater, despite the advantages of DTRO treatment of such high concentration wastewater, it still faces fouling effects, requiring frequent cleaning, which affects system operating efficiency and also affects membrane life.
Therefore, pretreatment of the permeate is required prior to DTRO treatment. However, the existing pretreatment system usually adopts a tubular membrane circulation system to separate sludge and water, the produced water of the tubular membrane enters a reverse osmosis device, and suspended matters and macromolecular organic pollutants are filtered by utilizing the nanometer micropores of the tubular ultrafiltration membrane, as shown in fig. 1, the tubular membrane separation system needs to be provided with a large-flow circulation pump, a larger circulation concentration tank, a sludge dewatering system and the like, the occupied area is larger, and the operation effect is greatly influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's not enough, provide a tubular membrane processing system for rubbish penetrant preliminary treatment, the structure is simplified, can effectively promote tubular membrane treatment effect when reduce cost.
The utility model discloses a realize through following technical scheme:
the tubular membrane treatment system for pretreatment of the garbage penetrating fluid comprises a raw water tank, a tubular membrane group and a water production tank, wherein the tubular membrane group is provided with a water inlet end, a water production end and a concentrated water end, wherein: the water inlet end is communicated with the raw water tank through a water inlet pipe and a circulating pump,
the tubular membrane group is provided with a concentrated water pressure gauge at a concentrated water end, the concentrated water end comprises a first concentrated water end and a second concentrated water end, the first concentrated water end is communicated with a water inlet pipe connected with a water inlet end of the circulating pump through a first return pipe, the first return pipe is provided with a circulating control valve and a circulating liquid flowmeter, and the second concentrated water end is connected with a concentrated water collecting pipe provided with a concentrated water discharge valve and a concentrated water flowmeter;
the tubular membrane group is equipped with at the product water end and produces the water flowmeter, produces the water end and includes first product water end, and first product water end is through installing the product water pipe and the product water tank intercommunication of producing the water drain valve.
The dense water end of the tubular membrane group of this scheme includes first dense water end and second dense water end, connects first return pipe on the inlet tube of the end connection of intaking of circulating pump and communicates with the first dense water end of tubular membrane group for dense water no longer flows back to former water pitcher, directly carries out the inner loop in the system and handles, can not save the step of concentrated mud and mud concentrated dehydration, and need not set up the blowoff valve in addition, effectively simplifies equipment, reduce cost.
Furthermore, the water production end still include the second end of producing water, the second end of producing water is connected with the cleaner case through the second back flow of installing the water production reflux valve, through the third back flow intercommunication of installing the concentrated water of washing reflux valve between second back flow and the first back flow, the cleaner case is still through the inlet tube intercommunication of the scavenge pipe of installing the cleaner valve and the end connection of intaking of circulating pump.
This scheme is through setting up the cleaner case, with second product water end through second back flow and cleaner case intercommunication, the inlet tube intercommunication of the end connection of intaking of scavenge pipe and circulating pump is passed through to the cleaner case, make the cleaner can circulate and flow in the system, when the product water end play water of tubular membrane group reduces, the accessible is opened the cleaner valve and is made the cleaner get into the tubular membrane group under the circulating pump effect, wash the tubular membrane group, the product water accessible second back flow of product water end flows back to the cleaner incasement, and the play water of concentrate end flows back to the cleaner incasement through the third back flow, it is mobile to realize holistic circulation washing.
Furthermore, a water inlet valve is arranged at one end of the raw water tank of the water inlet pipe.
The water inlet valve is used for controlling the discharge of raw water in the raw water tank, and can be matched with other valves to regulate and control the whole system, and particularly when a tubular membrane group is cleaned, the raw water supply in the raw water tank can be closed through the water inlet valve, so that the cleaning agent can circulate in the system.
Furthermore, the water inlet end of the tubular membrane group is provided with a membrane inlet pressure gauge.
The membrane feeding pressure meter is used for displaying the pressure of the tubular membrane group at the water inlet end, and is convenient for controlling the water inlet pressure of the water inlet end.
The utility model has the advantages that:
the utility model provides a, through setting up first return tube with the dense water backward flow of the first dense water end of tubular membrane group to circulating pump department, form the interior reflux system of tubular membrane group, original dense water no longer flows back former water pitcher, and former water pitcher does not regard as the concentrated jar of circulation for the former water pitcher holds active big reduction, and former water pitcher stock only can for 1~2 hours of handling discharge, effectively reduces the purchasing cost of former water pitcher.
Secondly, the concentrated water does not flow back to the raw water tank any more, the concentrated sludge is not used any more, a drain valve is not needed to be additionally arranged, and the sludge concentration and dehydration are not needed.
Thirdly, through the connection of design cleaner case, can be so that the system need not add in addition and establish the washing water pump, the washing liquid circulating pump is direct inhales, washs flow and concentration, is controlled by the cleaner valve, and intake pump, the scavenging pump of system are directly done to the circulating pump, save intake pump and scavenging pump, and cleaning process and operation are realized through the valve switch, and is succinct swift
And fourthly, the concentration ratio is effectively controlled by adjusting the circulation control valve and the concentrated water discharge valve, the concentrations of the raw water and the concentrated water are not changed along with the concentration ratio, the water quality is kept stable, and the water quality of the produced water is also stable.
Drawings
FIG. 1 is a schematic diagram of a prior art pretreatment using a tubular membrane module;
fig. 2 is a schematic structural diagram of the present invention.
Shown in the figure:
the device comprises a raw water tank 1, a water inlet valve 2, a circulating pump 3, a tubular membrane group 4, a circulating control valve 5, a concentrated water discharge valve 6, a produced water discharge valve 7, a produced water tank 8, a cleaning agent tank 9, a cleaning agent valve 10, a cleaning produced water return valve 11, a cleaning concentrated water return valve 12, a membrane inlet pressure gauge 13, a concentrated water pressure gauge 14, a produced water flow meter 15, a concentrated water flow meter 16, a circulating liquid flow meter 17, a water inlet pipe 18, a first return pipe 19, a concentrated water collecting pipe 20, a third return pipe 21, a cleaning pipe 22 and a second return pipe 23.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.
The utility model provides a tubular membrane processing system for rubbish penetrant preliminary treatment, includes former water pitcher 1, tubular membrane group 4 and produces water tank 8, and tubular membrane group 4 is equipped with into water end, produces water end and concentrate end, wherein: and a membrane inlet pressure gauge 13 is arranged at the water inlet end of the tubular membrane group 4.
The water inlet end is communicated with the raw water tank 1 through a water inlet pipe 18 and a circulating pump 3, and the water inlet pipe 18 is provided with a water inlet valve 2 at one end of the raw water tank 1.
The tubular membrane group 4 is equipped with dense water manometer 14 at dense water end, and dense water end includes first dense water end and second dense water end, and first dense water end is through the inlet tube 18 intercommunication that first return tube 19 is connected with circulating pump 3's the end of intaking, installs circulation control valve 5 and circulation liquid flowmeter 17 on the first return tube 19, and the dense water collecting pipe 20 that the dense water drain valve 6 of installation and dense water flowmeter 16 is held to the second dense water.
The tubular membrane group 4 is provided with a water production flow meter 15 at the water production end, the water production end comprises a first water production end, and the first water production end is communicated with a water production tank 8 through a water production pipe provided with a water production discharge valve 7.
Produce the water end still include the second and produce the water end, the second produces the water end and is connected with cleaner case 9 through installing the second back flow 23 that produces water reflux valve 11, through installing the third back flow 21 intercommunication that washs dense water reflux valve 12 between second back flow 23 and the first back flow 19, cleaner case 9 still communicates with the inlet tube 18 that the end is connected of intaking of circulating pump 3 through the scavenge pipe 22 that installs cleaner valve 10.
The operation process of the system is illustrated as follows:
in a range of 10m3For example, the recovery rate of 75%, i.e., the water yield of 7.5m, was set for the treatment system/h3H, concentrated water discharge 2.5m3And/h, the concentration ratio of concentrated water is 4 times.
In the operation process, the water inlet valve 2, the circulation control valve 5, the concentrated water discharge valve 6 and the produced water discharge valve 7 are opened, the circulation pump 3 operates, and other valves are closed. The stock solution to be treated is 10m from the raw water tank 13The flow rate per hour enters the system through a water inlet valve 2, and the flow rate in a tubular membrane group 4 is 7.5m3Flow/h through the product water discharge valve 7 and at 2.5m3The/h flow is discharged out of the system through the concentrate discharge valve 6.
The circulating pump 3 provides working pressure, the circulating control valve 5 adjusts the working pressure through a concentrated water pressure gauge 14, and concentrated water is usedThe discharge valve 6 adjusts the discharge flow of the concentrated water to 2.5m through a concentrated water flowmeter 163H is used as the reference value. The rated flow range of the circulating pump 3 selected according to the process requirements is 100-250 m3And the flow velocity of the stock solution in the tubular membrane group 4 is ensured to be 2-5 m/s between h, and the system operation parameters can be detected through the circulating flowmeter 17.
In the system cleaning process, the circulating pump 3 is operated, the cleaning agent valve 10, the circulating control valve 5, the cleaning produced water return valve 11 and the cleaning concentrated water return valve 12 are opened, and other valves are closed. The cleaning liquid is circularly cleaned through a cleaning agent box 9, a cleaning agent valve 5, a circulating pump 3, a tubular membrane group 4, a cleaning water production return valve 11 and a cleaning concentrated water return valve 12.
After the cleaning is finished, the concentrated water discharge valve 6 is opened, and the cleaning waste liquid is discharged, so that the operation state can be switched to.
In the operation process, the flow of raw water passing through the water inlet valve 2 is 10m3H, and the flow of circulating water through the control valve 5 is 200m3More than h.
In the operation process, the concentration of the circulating concentrated solution passing through the tubular membrane group 4 is 4 times of that of the raw water, and the concentration is 2.5m3And h, discharging the concentrated solution, wherein the discharged concentrated solution contains suspended matters and high-concentration pollutants which are concentrated by 4 times, and can be recharged to a refuse landfill after being discharged to a concentrated water tank.
In the cleaning agent tank 9, a coagulant or powdered activated carbon is added. The cleaning agent valve 10 is opened at a proper time, coagulant or active carbon can be added into the tubular membrane circulating system, the membrane surface is quickly scrubbed on line, the water flux of the membrane is improved, and the water quality of effluent is not influenced.
Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.
Claims (4)
1. The utility model provides a tubular membrane processing system for rubbish penetrant preliminary treatment, includes former water pitcher, tubular membrane group and produces the water tank, and tubular membrane group is equipped with into water end, produces water end and concentrate end, wherein: the end of intaking is through inlet tube and circulating pump and former water tank intercommunication, its characterized in that:
the tubular membrane group is provided with a concentrated water pressure gauge at a concentrated water end, the concentrated water end comprises a first concentrated water end and a second concentrated water end, the first concentrated water end is communicated with a water inlet pipe connected with a water inlet end of the circulating pump through a first return pipe, the first return pipe is provided with a circulating control valve and a circulating liquid flowmeter, and the second concentrated water end is connected with a concentrated water collecting pipe provided with a concentrated water discharge valve and a concentrated water flowmeter;
the tubular membrane group is equipped with at the product water end and produces the water flowmeter, produces the water end and includes first product water end, and first product water end is through installing the product water pipe and the product water tank intercommunication of producing the water drain valve.
2. The tubular membrane treatment system for permeate pretreatment of refuse according to claim 1, wherein: the water producing end still include the second water producing end, the second water producing end is connected with the cleaner case through the second back flow of installing the water producing reflux valve, through installing the third back flow intercommunication that washs dense water reflux valve between second back flow and the first back flow, the cleaner case still communicates through the inlet tube of the scavenge pipe of installing the cleaner valve and the end connection of intaking of circulating pump.
3. The tubular membrane treatment system for permeate pretreatment of refuse according to claim 1, wherein: the water inlet pipe is provided with a water inlet valve at one end of the raw water tank.
4. The tubular membrane treatment system for permeate pretreatment of refuse according to claim 1, wherein: the water inlet end of the tubular membrane group is provided with a membrane inlet pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921148015.7U CN210419372U (en) | 2019-07-22 | 2019-07-22 | Tubular membrane treatment system for pretreatment of garbage penetrating fluid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921148015.7U CN210419372U (en) | 2019-07-22 | 2019-07-22 | Tubular membrane treatment system for pretreatment of garbage penetrating fluid |
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| CN210419372U true CN210419372U (en) | 2020-04-28 |
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| CN201921148015.7U Active CN210419372U (en) | 2019-07-22 | 2019-07-22 | Tubular membrane treatment system for pretreatment of garbage penetrating fluid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110407298A (en) * | 2019-07-22 | 2019-11-05 | 济南上华科技有限公司 | It is a kind of for the pretreated tubular type film processing system of refuse leachate and the pretreating process of the system |
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2019
- 2019-07-22 CN CN201921148015.7U patent/CN210419372U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110407298A (en) * | 2019-07-22 | 2019-11-05 | 济南上华科技有限公司 | It is a kind of for the pretreated tubular type film processing system of refuse leachate and the pretreating process of the system |
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| CP02 | Change in the address of a patent holder |
Address after: No.11, Jiyang Street Industrial Park, Jiyang District, Jinan City, Shandong Province Patentee after: JINAN SHANGHUA TECHNOLOGY Co.,Ltd. Address before: Room 5-401-2, Yinhe Building, No. 2008 Xinlu Street, Jinan Hi-tech Zone, Licheng District, Jinan City, Shandong Province Patentee before: JINAN SHANGHUA TECHNOLOGY Co.,Ltd. |
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