CN113694730A - Online monitoring and cleaning system and method for ultrafiltration membrane for treating landfill leachate - Google Patents
Online monitoring and cleaning system and method for ultrafiltration membrane for treating landfill leachate Download PDFInfo
- Publication number
- CN113694730A CN113694730A CN202110970505.0A CN202110970505A CN113694730A CN 113694730 A CN113694730 A CN 113694730A CN 202110970505 A CN202110970505 A CN 202110970505A CN 113694730 A CN113694730 A CN 113694730A
- Authority
- CN
- China
- Prior art keywords
- flushing
- electric
- ultrafiltration membrane
- main body
- 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.)
- Pending
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 120
- 238000000108 ultra-filtration Methods 0.000 title claims abstract description 75
- 238000012544 monitoring process Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000000149 chemical water pollutant Substances 0.000 title claims abstract description 21
- 238000004140 cleaning Methods 0.000 title claims description 21
- 238000011010 flushing procedure Methods 0.000 claims abstract description 127
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 126
- 238000001914 filtration Methods 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims description 44
- 239000010865 sewage Substances 0.000 claims description 15
- 239000010802 sludge Substances 0.000 claims description 11
- 230000001276 controlling effect Effects 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000011001 backwashing Methods 0.000 abstract description 2
- 238000005406 washing Methods 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000004220 aggregation Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/145—Ultrafiltration
-
- 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
- B01D63/06—Tubular membrane modules
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
-
- 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
- C02F2103/06—Contaminated groundwater or leachate
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
When the pipe pressure monitored by a clear water side pipe pressure monitoring meter is higher than the working pressure set by the system, the automatic filtering device works under the control of the control system, the ultrafiltration membrane main body automatically operates, and the flushing device automatically closes; when the pipe pressure monitored by the clear water side pipe hydraulic pressure monitoring meter is lower than the working pressure set by the system, the ultrafiltration membrane main body automatically stops running and the flushing device automatically starts running under the control of the control system. And moreover, a signal automatic receiving and sending device and an online user receiving end are also arranged, so that backwashing is automatically completed in the process of automatically completing the filtration treatment of the landfill leachate, the online signal receiving of a user end is also realized, and the automation of the landfill leachate treatment is further improved.
Description
Technical Field
The invention relates to a landfill leachate treatment MBR system, in particular to an online monitoring and cleaning system and method for an ultrafiltration membrane for treating landfill leachate.
Background
The leachate produced by a refuse incineration plant has high pollutant concentration, the COD concentration of raw water is generally more than 60000mg/L, and the treatment difficulty is high. Therefore, an anaerobic system + MBR system + advanced treatment process is generally adopted. The main equipment of the MBR system is an ultrafiltration membrane group which is used for replacing a secondary sedimentation tank in the traditional treatment method.
The Membrane Bioreactor (MBR) technology is a novel water treatment technology combining an activated sludge process and a membrane separation process, an external membrane bioreactor is characterized in that membrane pipes of hundreds of branch type ultrafiltration membranes are arranged in a membrane shell to form membrane assemblies, a plurality of membrane assemblies are connected through elbows and are connected in series to form a membrane filtering system, the membrane filtering system is connected with an aerobic pool or a membrane pool through a pipeline, sewage circulates in the membrane pipes, clear water flows into a water production tank through membrane holes, and partial sewage and sludge flow back again through a return pipe to enter the aerobic pool or the membrane pool.
The water containing the sludge circularly flows in the membrane tube, and after the water containing the sludge is used for a period of time, sludge blockage can occur in part of the membrane tube. Or the sludge stays in the membrane tube to cause blockage when the ultrafiltration membrane group is stopped suddenly due to equipment failure. Daily cleaning operation can not completely recover flux, membrane passing treatment is needed, a good membrane passing method is not available in the current operation practice, and operation operators often adopt iron wires or plastic pipes to pass membranes or use a membrane passing machine to pass membranes.
The existing membrane passing method has many defects. For example: 1. the membrane passing efficiency is very low; 2. the effect is not good, the blockage is serious, the sludge is blocked in the middle, and the sludge is more compact and more compact when being extruded; 3. the membrane tube is seriously damaged, and the membrane is scratched when being dredged by brute force to separate the membrane from the tube wall. Even iron wires or plastic pipes penetrate through the wall of the membrane pipe, so that the membrane pipe is irreparably damaged; 4. The service life of the tubular ultrafiltration membrane is shortened, and the running cost is increased.
Disclosure of Invention
In order to solve the existing problems, the invention provides an online monitoring, cleaning and cleaning system and method for an ultrafiltration membrane for treating landfill leachate.
The invention adopts the technical scheme that the online monitoring and cleaning system for the ultrafiltration membrane for treating the landfill leachate comprises an automatic filtering device, wherein the automatic filtering device comprises a leachate pipeline, an electric dirty liquid water inlet valve, an ultrafiltration membrane main body and an electric dirty liquid water outlet valve are sequentially arranged on the leachate pipeline according to the flowing direction of the leachate, an electric clear liquid water outlet valve is further arranged on the clear water side of the ultrafiltration membrane main body, a clear water side pipe hydraulic pressure monitoring meter is further arranged on the clear water side of the ultrafiltration membrane main body, a membrane pipe is arranged in the ultrafiltration membrane main body, and the online monitoring and cleaning system is characterized in that an automatic flushing device is further arranged on the clear water side of the ultrafiltration membrane main body, comprises a flushing pipeline, a water tank, a flushing water pump and an electric flushing water inlet valve are sequentially arranged on the flushing pipeline according to the flowing direction of flushing water, the flushing pipeline is connected to the clear water side of the ultrafiltration membrane main body, and a pipeline between the flushing water pump and the flushing water inlet valve is also provided with a flushing pipeline pipe hydraulic pressure monitoring meter, two ends of the ultrafiltration membrane main body are respectively provided with an electric flushing drain valve, and a control system and an electric appliance control box are also arranged.
Preferably, the system is further provided with an automatic signal transceiver and an online user receiving end, wherein the automatic signal transceiver is used for receiving digital signals of the clear water side pipe hydraulic pressure monitoring meter and the flushing pipeline pipe hydraulic pressure monitoring meter, receiving opening and closing signals of the electric dirty liquid inlet valve, the electric dirty liquid outlet valve, the electric clear liquid outlet valve, the flushing water pump, the electric flushing inlet valve, the electric flushing drain valve and the like, and simultaneously sending the related signals to the online user receiving end in a wireless or wired mode.
Preferably, the electric flushing drain valves are arranged at two ends of the bottom of the ultrafiltration membrane main body.
Preferably, the automatic flushing device is arranged at the bottom of the clear water side of the ultrafiltration membrane main body and is positioned between the two electric flushing drain valves.
And electric flushing drain valves are arranged at two ends of the ultrafiltration membrane main body and used for controlling the sewage in the membrane tubes to flow out.
An online monitoring and cleaning method for an ultrafiltration membrane for treating landfill leachate comprises the following steps:
firstly, when the pipe pressure monitored by the clear water side pipe pressure monitoring meter is greater than the working pressure set by the system, the automatic filtering device 1 works under the control of the control system, the ultrafiltration membrane main body automatically runs, and the flushing device is automatically closed;
in this state, the electric dirty liquid inlet valve, the electric dirty liquid outlet valve, the electric clear liquid outlet valve and the like are automatically opened at the same time; the flushing device is in a closed state, the flushing water pump is closed, and the electric flushing water inlet valve and the electric flushing water discharge valves at the two ends are automatically closed at the same time;
in this state, muddy water generated after the leachate flows through the ultrafiltration membrane main body is discharged through the electric dirty liquid outlet valve, and clean water filtered by the ultrafiltration membrane main body flows to a clean water pipeline from a clean water side through the electric clean liquid outlet valve;
secondly, when the pipe pressure monitored by the clear water side pipe pressure monitoring meter is lower than the working pressure set by the system, the ultrafiltration membrane main body automatically stops running and the flushing device automatically starts running under the control of the control system;
in this state, the electric dirty liquid inlet valve, the electric dirty liquid outlet valve, the electric clear liquid outlet valve and the like are automatically closed at the same time; the flushing water pump is opened, and the electric flushing water inlet valve, the electric flushing drain valves at the two ends and the like are automatically opened at the same time;
in this state, the flushing water of the flushing device flows through the flushing water pump and the electric flushing water inlet valve from the water tank through the flushing pipeline in sequence, flows into the clear water side of the ultrafiltration membrane main body, then flows into the membrane pipe of the ultrafiltration membrane main body in a reverse direction, under the action of the flushing water pressure, sludge deposited in the membrane pipe is flushed away, then flows to the two ends of the ultrafiltration membrane main body through the membrane pipe, and then enters the sewage pipeline through the electric flushing water discharge valves at the two ends, so that the membrane pipe is effectively cleaned.
Further, in the first step, the system automatically sends a relevant signal to the online user receiving end.
Further, in the second step of aggregation, the system automatically sends related signals to the receiving end of the online user.
Further, in the second step of polymerization, the pipe pressure monitored by a pipe hydraulic pressure monitoring meter of the flushing pipeline is used for regulating and controlling the rotating speed of the sewage pump.
Further, the larger the pipe pressure monitored by a pipe hydraulic pressure monitoring meter of the flushing pipeline is, the higher the rotating speed of the sewage pump is; on the contrary, if the pipe pressure monitored by the flushing pipe pressure monitoring meter is smaller, the rotating speed of the sewage pump is lower.
Further, in the second step, when the pipe pressure monitored by the pipe hydraulic pressure monitoring meter of the flushing pipeline is less than the flushing pressure set by the system, the system returns to the first step again.
Advantageous effects
The invention provides an online monitoring and cleaning system and method for an ultrafiltration membrane for treating landfill leachate, which comprises an automatic filtering device, wherein an automatic flushing device is also arranged on the clear water side of an ultrafiltration membrane main body, the automatic flushing device comprises a flushing pipeline, a water tank, a flushing water pump and an electric flushing water inlet valve are sequentially arranged on the flushing pipeline according to the flowing direction of flushing water, the flushing pipeline is connected to the clear water side of the ultrafiltration membrane main body, a flushing pipeline pipe hydraulic pressure monitoring meter is also arranged on a pipeline between the flushing water pump and the flushing water inlet valve, two ends of the ultrafiltration membrane main body are respectively provided with an electric flushing water drain valve, and a control system and an electric appliance control box are also arranged; and moreover, a signal automatic receiving and sending device and an online user receiving end are also arranged, so that backwashing is automatically completed in the process of automatically completing the filtration treatment of the landfill leachate, the online signal receiving of a user end is also realized, and the automation of the landfill leachate treatment is further improved.
Drawings
FIG. 1 is a diagram of the apparatus arrangement of the present invention.
Wherein the content of the first and second substances,
1. the system comprises an automatic filtering device, a 1.1A electric dirty liquid inlet valve, a 1.1B electric dirty liquid outlet valve, a 1.2 ultrafiltration membrane main body, a 1.3 clean water side, a 1.3A electric clean liquid outlet valve, a 1.3B clean water side pipe pressure monitoring meter and a 1.4 membrane pipe, wherein the automatic filtering device comprises a filter, a filter and a controller;
2. the automatic flushing device comprises a 2.1 water tank, a 2.2 flushing water pump, a 2.3 electric flushing water inlet valve, a 2.4 flushing pipeline pressure monitoring meter and 2.5A and 2.5B electric flushing water discharge valves.
Detailed Description
FIG. 1 is a diagram of the apparatus arrangement of the present invention. In the figure, the online monitoring and cleaning system for the ultrafiltration membrane for treating the landfill leachate comprises an automatic filtering device 1, wherein the automatic filtering device 1 comprises a leachate pipeline, an electric dirty liquid inlet valve 1.1A, an ultrafiltration membrane main body 1.2 and an electric dirty liquid outlet valve 1.1B are sequentially arranged on the leachate pipeline according to the flowing direction of the leachate, an electric clear liquid outlet valve 1.3A is further arranged on the clear water side 1.3 of the ultrafiltration membrane main body 1.2, a clear water side pipe pressure monitoring table 1.3B is further arranged on the clear water side of the ultrafiltration membrane main body 1.2, and a membrane pipe 1.4 is arranged in the ultrafiltration membrane main body 1.2. In the figure, it is shown that in the present example, an automatic flushing device 2 is further arranged on a clean water side 1.3 of an ultrafiltration membrane main body 1.2, the automatic flushing device 2 comprises a flushing pipeline, and a water tank 2.1, a flushing water pump 2.2 and an electric flushing water inlet valve 2.3 are sequentially arranged on the flushing pipeline according to the flowing direction of flushing water, the flushing pipeline is connected to the clean water side 1.3 of the ultrafiltration membrane main body 1.2, a flushing pipeline hydraulic pressure monitoring meter 2.4 is further arranged on a pipeline between the flushing water pump 2.2 and the flushing water inlet valve 2.3, two ends of the ultrafiltration membrane main body 1.2 are respectively provided with an electric flushing water discharge valve 2.5A and 2.5B, a control system and an electric appliance control box are further arranged, the electric flushing water discharge valves are arranged at two ends of the bottom of the ultrafiltration membrane main body, and the automatic flushing device is arranged at the bottom of the clean water side of the ultrafiltration membrane main body and is located between the two electric flushing water discharge valves.
In this example, a signal automatic transceiver and an online user receiving end are further provided, the signal automatic transceiver is used for receiving digital signals of the clear water side pipe hydraulic pressure monitoring meter and the flushing pipeline pipe hydraulic pressure monitoring meter, receiving signals of opening or closing of the electric dirty liquid inlet valve 1.1A, the electric dirty liquid outlet valve 1.1B, the electric clear liquid outlet valve 1.3A, the flushing water pump 2.2, the electric flushing inlet valve 2.3, the electric flushing drain valves 2.5A and 2.5B and the like, and simultaneously sending the related signals to the online user receiving end in a wired or wireless manner.
With reference to fig. 1, the invention provides an online monitoring and cleaning method for an ultrafiltration membrane for treating landfill leachate, which comprises the following steps:
firstly, when the pipe pressure monitored by a clear water side pipe pressure monitoring table 1.3B is greater than the working pressure set by the system, under the control of the control system, the automatic filtering device 1 works, the ultrafiltration membrane main body 1.2 automatically runs, and the flushing device 2 is automatically closed.
Under the state, an electric dirty liquid inlet valve 1.1A, an electric dirty liquid outlet valve 1.1B and an electric clear liquid outlet valve 1.3A are opened automatically at the same time; meanwhile, the flushing device 2 is in a closed state, the flushing water pump 2.2 is closed, and the electric flushing water inlet valve 2.3 and the electric flushing drain valves 2.5A and 2.5B at the two ends are automatically closed at the same time.
In this state, the muddy water generated after the leachate passes through the ultrafiltration membrane main body 1.2 is discharged through the electric dirty liquid outlet valve 1.1B, and the clean water filtered by the ultrafiltration membrane main body 1.2 flows from the clean water side 1.3 to the clean water line through the electric clean water outlet valve 1.3A.
Secondly, when the pipe pressure monitored by the clear water side pipe pressure monitoring table 1.3B is lower than the working pressure set by the system, the ultrafiltration membrane main body 1.2 automatically stops running and the flushing device 2 automatically starts running under the control of the control system;
in this state, the electric dirty liquid inlet valve 1.1A, the electric dirty liquid outlet valve 1.1B and the electric clear liquid outlet valve 1.3A are automatically closed at the same time; then, the washing water pump 2.2 is opened, and the electric washing water inlet valve 2.3, the electric washing drain valves 2.5A and 2.5B at the two ends and the like are automatically opened at the same time.
In this state, the washing water of the washing device 2 flows through the washing water pump 2.2 and the electric washing water inlet valve 2.3 from the water tank 2.1 through the washing pipeline in sequence, flows into the clean water side 1.3 of the ultrafiltration membrane main body 1.2, then reversely flows into the membrane pipe 1.4 of the ultrafiltration membrane main body 1.2, under the action of the washing water pressure, the sludge deposited in the membrane pipe 1.4 is washed away, then flows to the two ends of the ultrafiltration membrane main body 1.2 through the membrane pipe 1.4, and then enters the sewage pipeline through the electric washing drain valves 2.5A and 2.5B at the two ends, so that the membrane pipe is effectively washed.
Further, in the first step, the system automatically sends a relevant signal to the online user receiving end.
Further, in the second step of aggregation, the system automatically sends related signals to the receiving end of the online user.
Further, in the second step of polymerization, the pipe pressure monitored by a pipe hydraulic pressure monitoring meter of the flushing pipeline is used for regulating and controlling the rotating speed of the sewage pump.
Further, the larger the pipe pressure monitored by a pipe hydraulic pressure monitoring meter of the flushing pipeline is, the higher the rotating speed of the sewage pump is; on the contrary, if the pipe pressure monitored by the flushing pipe pressure monitoring meter is smaller, the rotating speed of the sewage pump is lower.
Further, in the second step, when the pipe pressure monitored by the pipe hydraulic pressure monitoring meter of the flushing pipeline is less than the flushing pressure set by the system, the system returns to the first step again.
The invention provides an online monitoring and cleaning system and a cleaning method of an ultrafiltration membrane for treating landfill leachate.
Claims (10)
1. An online monitoring and cleaning system for an ultrafiltration membrane for treating landfill leachate is characterized by comprising an automatic filtering device, wherein the automatic filtering device comprises a leachate pipeline, an electric dirty liquid inlet valve, an ultrafiltration membrane main body and an electric dirty liquid outlet valve are sequentially arranged on the leachate pipeline according to the flowing direction of the leachate, an electric clear liquid outlet valve is further arranged on the clear water side of the ultrafiltration membrane main body, a clear water side pipe hydraulic pressure monitoring meter is further arranged on the clear water side of the ultrafiltration membrane main body, a membrane pipe is arranged in the ultrafiltration membrane main body, and the online monitoring and cleaning system is characterized in that an automatic flushing device is further arranged on the clear water side of the ultrafiltration membrane main body, comprises a flushing pipeline, and is sequentially provided with a water tank, a flushing water pump and an electric flushing water inlet valve according to the flowing direction of flushing water, the flushing pipeline is connected to the clear water side of the ultrafiltration membrane main body, and a flushing pipeline hydraulic pressure monitoring meter is further arranged on a pipeline between the flushing water pump and the flushing water inlet valve, and two ends of the ultrafiltration membrane main body are respectively provided with an electric flushing drain valve, a control system and an electric appliance control box.
2. The on-line cleaning system for the ultrafiltration membrane used for treating the landfill leachate of claim 1, further comprising an automatic signal transceiver and an on-line user receiving terminal, wherein the automatic signal transceiver is used for receiving digital signals of the clear water side pipe hydraulic pressure monitoring meter and the flushing pipeline pipe hydraulic pressure monitoring meter, receiving opening and closing signals of the electric dirty liquid inlet valve, the electric dirty liquid outlet valve, the electric clear liquid outlet valve, the flushing water pump, the electric flushing water inlet valve, the electric flushing water drain valve and the like, and simultaneously sending signals to the on-line user receiving terminal in a wireless or wired manner.
3. The on-line cleaning system for the ultrafiltration membrane of the landfill leachate of claim 2, wherein the electric flushing drain valve is arranged at two ends of the bottom of the ultrafiltration membrane main body.
4. The on-line cleaning system for the ultrafiltration membrane of the landfill leachate according to claim 3, wherein the automatic flushing device is arranged at the bottom of the clear water side of the ultrafiltration membrane main body and is positioned between the two electric flushing drain valves.
5. An on-line monitoring and cleaning method for an ultrafiltration membrane for treating landfill leachate, which is characterized by comprising any one of claims 1 to 4, and further comprising the following steps of:
the method comprises the following steps that firstly, when the pipe pressure monitored by a clear water side pipe pressure monitoring meter is greater than the working pressure set by a system, the automatic filtering device works under the control of a control system, the ultrafiltration membrane main body automatically runs, and the flushing device is automatically closed;
in this state, the electric dirty liquid inlet valve, the electric dirty liquid outlet valve, the electric clear liquid outlet valve and the like are automatically opened at the same time; the flushing device is in a closed state, the flushing water pump is closed, and the electric flushing water inlet valve and the electric flushing water discharge valves at the two ends are automatically closed at the same time;
in this state, muddy water generated after the leachate flows through the ultrafiltration membrane main body is discharged through the electric dirty liquid outlet valve, and clean water filtered by the ultrafiltration membrane main body flows to a clean water pipeline from a clean water side through the electric clean liquid outlet valve;
the method comprises the following steps that firstly, when the pipe pressure monitored by a clear water side pipe pressure monitoring meter is smaller than the working pressure set by a system, the ultrafiltration membrane main body automatically stops running and the flushing device automatically starts running under the control of the control system;
in this state, the electric dirty liquid inlet valve, the electric dirty liquid outlet valve, the electric clear liquid outlet valve and the like are automatically closed at the same time; the flushing water pump is opened, and the electric flushing water inlet valve, the electric flushing drain valves at the two ends and the like are automatically opened at the same time;
in this state, the flushing water of the flushing device flows through the flushing water pump and the electric flushing water inlet valve from the water tank through the flushing pipeline in sequence, flows into the clear water side of the ultrafiltration membrane main body, then flows into the membrane pipe of the ultrafiltration membrane main body in a reverse direction, under the action of the flushing water pressure, sludge deposited in the membrane pipe is flushed away, then flows to the two ends of the ultrafiltration membrane main body through the membrane pipe, and then enters the sewage pipeline through the electric flushing water discharge valves at the two ends, so that the membrane pipe is effectively cleaned.
6. The method as claimed in claim 5, wherein in the first step, the system automatically sends relevant signals to the on-line user receiving end.
7. The method as claimed in claim 5, wherein in the second step, the system automatically sends relevant signals to the on-line user receiving end.
8. The method as claimed in claim 5, wherein in the second step, the pipe pressure monitored by the pipe hydraulic pressure monitoring gauge of the flushing pipe is used for regulating and controlling the rotation speed of the sewage pump.
9. The on-line monitoring and cleaning method for the ultrafiltration membrane of the landfill leachate according to claim 5, wherein the larger the pipe pressure monitored by a pipe hydraulic pressure monitoring meter of the flushing pipeline is, the higher the rotation speed of the sewage pump is; on the contrary, if the pipe pressure monitored by the flushing pipe pressure monitoring meter is smaller, the rotating speed of the sewage pump is lower.
10. The method of claim 5, wherein in the second step, when the pipe pressure monitored by the pipe hydraulic pressure monitoring gauge of the flushing pipe is lower than the flushing pressure set by the system, the system returns to the first step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110970505.0A CN113694730A (en) | 2021-08-23 | 2021-08-23 | Online monitoring and cleaning system and method for ultrafiltration membrane for treating landfill leachate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110970505.0A CN113694730A (en) | 2021-08-23 | 2021-08-23 | Online monitoring and cleaning system and method for ultrafiltration membrane for treating landfill leachate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113694730A true CN113694730A (en) | 2021-11-26 |
Family
ID=78654192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110970505.0A Pending CN113694730A (en) | 2021-08-23 | 2021-08-23 | Online monitoring and cleaning system and method for ultrafiltration membrane for treating landfill leachate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113694730A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08266874A (en) * | 1995-03-29 | 1996-10-15 | Dick Deguremon Kk | Method for operating water filter device |
| US5958243A (en) * | 1996-07-11 | 1999-09-28 | Zenon Environmental Inc. | Apparatus and method for membrane filtration with enhanced net flux |
| CN203108444U (en) * | 2013-02-19 | 2013-08-07 | 南京奥特净化工程有限公司 | Intelligent control system of ultrafiltration equipment |
| CN109133269A (en) * | 2017-06-16 | 2019-01-04 | 南京丹恒科技有限公司 | A kind of efficient back washing device applied to tubular type membranous system |
| CN208975546U (en) * | 2018-08-09 | 2019-06-14 | 江苏圣富利环境工程有限公司 | A kind of ultrafiltration membrane automatic cleaning system |
| CN211725371U (en) * | 2019-08-20 | 2020-10-23 | 湖北中泉环保技术有限公司 | Ultrafiltration device with backwashing function |
| CN212609699U (en) * | 2020-08-12 | 2021-02-26 | 云米互联科技(广东)有限公司 | Household water purifying device |
| CN213433878U (en) * | 2020-08-31 | 2021-06-15 | 温州嘉伟环保科技有限公司 | A milipore filter three-section washs automatic operation equipment for doing wet landfill leachate |
| CN216260055U (en) * | 2021-08-23 | 2022-04-12 | 潮州深能环保有限公司 | Online monitoring and cleaning system for ultrafiltration membrane for treating landfill leachate |
-
2021
- 2021-08-23 CN CN202110970505.0A patent/CN113694730A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08266874A (en) * | 1995-03-29 | 1996-10-15 | Dick Deguremon Kk | Method for operating water filter device |
| US5958243A (en) * | 1996-07-11 | 1999-09-28 | Zenon Environmental Inc. | Apparatus and method for membrane filtration with enhanced net flux |
| CN203108444U (en) * | 2013-02-19 | 2013-08-07 | 南京奥特净化工程有限公司 | Intelligent control system of ultrafiltration equipment |
| CN109133269A (en) * | 2017-06-16 | 2019-01-04 | 南京丹恒科技有限公司 | A kind of efficient back washing device applied to tubular type membranous system |
| CN208975546U (en) * | 2018-08-09 | 2019-06-14 | 江苏圣富利环境工程有限公司 | A kind of ultrafiltration membrane automatic cleaning system |
| CN211725371U (en) * | 2019-08-20 | 2020-10-23 | 湖北中泉环保技术有限公司 | Ultrafiltration device with backwashing function |
| CN212609699U (en) * | 2020-08-12 | 2021-02-26 | 云米互联科技(广东)有限公司 | Household water purifying device |
| CN213433878U (en) * | 2020-08-31 | 2021-06-15 | 温州嘉伟环保科技有限公司 | A milipore filter three-section washs automatic operation equipment for doing wet landfill leachate |
| CN216260055U (en) * | 2021-08-23 | 2022-04-12 | 潮州深能环保有限公司 | Online monitoring and cleaning system for ultrafiltration membrane for treating landfill leachate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103432813A (en) | Reverse cleaning system and reverse cleaning method of ceramic filter in iron ore dehydration | |
| CN104129887A (en) | Reclaimed water recycling system based on membrane bioreactor | |
| CN216260055U (en) | Online monitoring and cleaning system for ultrafiltration membrane for treating landfill leachate | |
| CN202080973U (en) | Device for preparing electronic grade ultrapure water | |
| CN210528597U (en) | Intelligent wastewater recycling water purifier | |
| CN2677366Y (en) | Medium and small size integrated reverse asmosis sea water desalination device | |
| CN210457682U (en) | Cleaning system of water treatment system based on reverse osmosis membrane | |
| CN113694730A (en) | Online monitoring and cleaning system and method for ultrafiltration membrane for treating landfill leachate | |
| CN207062005U (en) | A kind of household water filter for automatically adjusting waste water ratio | |
| CN208648833U (en) | A kind of double film combination sewage-treatment plants | |
| CN213738935U (en) | Control system for reducing reverse osmosis device inlet microbial pollution | |
| CN210163221U (en) | Ecological environment-friendly wastewater-free water purifier | |
| CN213506113U (en) | Membrane treatment device containing aeration | |
| CN201587866U (en) | Automatic control water-treatment device | |
| CN114031229A (en) | Water purifying device for secondary water supply equipment | |
| CN207499062U (en) | Water supply installation | |
| CN100408493C (en) | Sewage treating system with changeable water treating process | |
| CN207243502U (en) | A kind of water process mechanism | |
| CN108996731B (en) | Water-saving multistage RO filtration system | |
| CN111874996A (en) | Tubular microfiltration membrane wastewater treatment process | |
| CN201223773Y (en) | Tube-type sewage water micro-filter processing equipment | |
| CN105417832A (en) | Integrated intelligent oil production wastewater treatment device and method for oil fields | |
| CN101665290B (en) | Automatically controlled water treatment device | |
| CN219290705U (en) | Vinegar beverage production technology water saving system | |
| CN211813780U (en) | Ultrafiltration system of high pressure resin film mold washing water |
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 | ||
| CB02 | Change of applicant information |
Address after: 521000 men Di Ling, Sha Xi Yi Cun, Chao'an District, Chaozhou City, Guangdong Province Applicant after: Chaozhou Shenneng environmental protection Co.,Ltd. Applicant after: Shenzhen Shenneng environmental protection East Co.,Ltd. Applicant after: Shenzhen Energy and environmental protection Co.,Ltd. Applicant after: Shenzhen Shenneng Environmental Protection City Environmental Service Co.,Ltd. Applicant after: Guilin Shenneng environmental protection Co.,Ltd. Applicant after: WUHAN SHENNENG ENVIRONMENTAL PROTECTION NEW DITCH WASTE POWER GENERATION Co.,Ltd. Applicant after: Shanxian Shenneng environmental protection Co.,Ltd. Address before: 521000 men Di Ling, Sha Xi Yi Cun, Chao'an District, Chaozhou City, Guangdong Province Applicant before: Chaozhou Shenneng environmental protection Co.,Ltd. Applicant before: Shenzhen Shenneng environmental protection East Co.,Ltd. Applicant before: SHENZHEN ENERGY ENVIRONMENTAL ENGINEERING Co.,Ltd. Applicant before: Shenzhen Shenneng Environmental Protection City Environmental Service Co.,Ltd. Applicant before: Guilin Shenneng environmental protection Co.,Ltd. Applicant before: WUHAN SHENNENG ENVIRONMENTAL PROTECTION NEW DITCH WASTE POWER GENERATION Co.,Ltd. Applicant before: Shanxian Shenneng environmental protection Co.,Ltd. |
|
| CB02 | Change of applicant information |