CN216260055U - Online monitoring and cleaning system for ultrafiltration membrane for treating landfill leachate - Google Patents
Online monitoring and cleaning system for ultrafiltration membrane for treating landfill leachate Download PDFInfo
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- CN216260055U CN216260055U CN202121988235.8U CN202121988235U CN216260055U CN 216260055 U CN216260055 U CN 216260055U CN 202121988235 U CN202121988235 U CN 202121988235U CN 216260055 U CN216260055 U CN 216260055U
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- flushing
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- 239000012528 membrane Substances 0.000 title claims abstract description 101
- 238000000108 ultra-filtration Methods 0.000 title claims abstract description 61
- 238000012544 monitoring process Methods 0.000 title claims abstract description 39
- 239000000149 chemical water pollutant Substances 0.000 title claims abstract description 22
- 238000004140 cleaning Methods 0.000 title claims abstract description 17
- 238000011010 flushing procedure Methods 0.000 claims abstract description 113
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 113
- 238000001914 filtration Methods 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims description 37
- 238000005406 washing Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 5
- 238000011001 backwashing Methods 0.000 abstract description 3
- 239000010865 sewage Substances 0.000 description 10
- 239000010802 sludge Substances 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects 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
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- 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
Abstract
An online monitoring and cleaning system for an ultrafiltration membrane for treating landfill leachate comprises an automatic filtering device, wherein an automatic flushing and selecting device is further arranged on the clear water side of an ultrafiltration membrane main body, the automatic flushing and selecting 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 further arranged on the 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 further 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.
Description
Technical Field
The utility model relates to a landfill leachate treatment MBR system, in particular to an online monitoring and cleaning system 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 60000 mg/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.
SUMMERY OF THE UTILITY MODEL
In order to solve the existing problems, the utility model provides an online monitoring and cleaning system for an ultrafiltration membrane for treating landfill leachate.
The technical scheme adopted by the utility model for solving the technical problems is that the online 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 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 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, and 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 valve is 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.
An online 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.
Has the advantages that:
the utility model provides an online monitoring and cleaning system 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 pipeline pressure monitoring meter for the flushing pipeline 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, a control system and an electric appliance control box; 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 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 liquid 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 utility model provides an online 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 utility model provides an online monitoring and cleaning system for an ultrafiltration membrane for treating landfill leachate, which is characterized in that an automatic flushing device is arranged on the clear water side of an ultrafiltration membrane main body, and an automatic signal receiving and transmitting device and an online user receiving end are also arranged, so that backwashing is automatically completed in the process of automatically completing filtration treatment of the landfill leachate, online signal receiving of a user end is also realized, and the automation of landfill leachate treatment is greatly improved.
Claims (4)
1. The utility model provides a handle landfill leachate milipore filter on-line monitoring cleaning system, includes automatic filtration device, automatic filtration device includes the filtration liquid pipeline and according to the direction that filtration liquid flows set gradually electronic foul solution water intaking valve, milipore filter main part, electronic foul solution outlet valve on the filtration liquid pipeline, still be provided with electronic clear solution outlet valve in the clear water side of milipore filter main part still sets up clear water side pipe pressure monitoring table, the membrane pipe has in the milipore filter main part, characterized by, still set up automatic flushing device in the clear water side of milipore filter main part, include the flushing line and according to the direction that the flushing water flows set gradually water tank, washing water pump, electronic washing water intaking valve on the flushing line, the flushing line inserts the clear water side of milipore filter main part, still be provided with flushing line pipe pressure monitoring table on the pipeline between washing water pump and the washing water intaking 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 online monitoring and cleaning system for the landfill leachate ultrafiltration membrane treatment as claimed in claim 1, further comprising an automatic signal transceiver and an online user receiving terminal, wherein the automatic signal transceiver is configured to receive digital signals of the clear water side pipe hydraulic pressure monitoring meter and the flushing pipe hydraulic pressure monitoring meter, and to receive signals of opening and closing 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 to send signals to the online user receiving terminal in a wireless or wired manner.
3. The online monitoring and cleaning system for the treatment of landfill leachate ultrafiltration membranes as claimed in claim 2, wherein the electric flushing drain valves are arranged at two ends of the bottom of the ultrafiltration membrane main body.
4. The online monitoring and cleaning system for the treatment of landfill leachate ultrafiltration membranes as claimed in 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121988235.8U CN216260055U (en) | 2021-08-23 | 2021-08-23 | Online monitoring and cleaning system for ultrafiltration membrane for treating landfill leachate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121988235.8U CN216260055U (en) | 2021-08-23 | 2021-08-23 | Online monitoring and cleaning system for ultrafiltration membrane for treating landfill leachate |
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| CN216260055U true CN216260055U (en) | 2022-04-12 |
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| CN202121988235.8U Active CN216260055U (en) | 2021-08-23 | 2021-08-23 | Online monitoring and cleaning system for ultrafiltration membrane for treating landfill leachate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113694730A (en) * | 2021-08-23 | 2021-11-26 | 潮州深能环保有限公司 | Online monitoring and cleaning system and method for ultrafiltration membrane for treating landfill leachate |
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2021
- 2021-08-23 CN CN202121988235.8U patent/CN216260055U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113694730A (en) * | 2021-08-23 | 2021-11-26 | 潮州深能环保有限公司 | Online monitoring and cleaning system and method for ultrafiltration membrane for treating landfill leachate |
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Address after: 521000 men Di Ling, Sha Xi Yi Cun, Chao'an District, Chaozhou City, Guangdong Province Patentee after: Chaozhou Shenneng environmental protection Co.,Ltd. Patentee after: Shenzhen Shenneng environmental protection East Co.,Ltd. Patentee after: Shenzhen Energy and environmental protection Co.,Ltd. Patentee after: Shenzhen Shenneng Environmental Protection City Environmental Service Co.,Ltd. Patentee after: Guilin Shenneng environmental protection Co.,Ltd. Patentee after: WUHAN SHENNENG ENVIRONMENTAL PROTECTION NEW DITCH WASTE POWER GENERATION Co.,Ltd. Patentee after: Shanxian Shenneng environmental protection Co.,Ltd. Address before: 521000 men Di Ling, Sha Xi Yi Cun, Chao'an District, Chaozhou City, Guangdong Province Patentee before: Chaozhou Shenneng environmental protection Co.,Ltd. Patentee before: Shenzhen Shenneng environmental protection East Co.,Ltd. Patentee before: SHENZHEN ENERGY ENVIRONMENTAL ENGINEERING Co.,Ltd. Patentee before: Shenzhen Shenneng Environmental Protection City Environmental Service Co.,Ltd. Patentee before: Guilin Shenneng environmental protection Co.,Ltd. Patentee before: WUHAN SHENNENG ENVIRONMENTAL PROTECTION NEW DITCH WASTE POWER GENERATION Co.,Ltd. Patentee before: Shanxian Shenneng environmental protection Co.,Ltd. |