CN216073478U - Landfill leachate emergency treatment system - Google Patents
Landfill leachate emergency treatment system Download PDFInfo
- Publication number
- CN216073478U CN216073478U CN202121969569.0U CN202121969569U CN216073478U CN 216073478 U CN216073478 U CN 216073478U CN 202121969569 U CN202121969569 U CN 202121969569U CN 216073478 U CN216073478 U CN 216073478U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- tank
- pump
- treatment system
- landfill leachate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a landfill leachate emergency treatment system which comprises a raw water collecting tank, a paper tape filter, a nitrification and denitrification biochemical treatment system, an MBR membrane biological reaction system, an RO reverse osmosis filtration system and a dosing system, wherein all links are controlled by a PLC control system. According to the emergency treatment system for the landfill leachate, the COD concentration is gradually reduced through the multi-section treatment units, so that the wastewater concentration is gradually reduced, automation is realized as far as possible through the PLC control system, the operation is simplified to the maximum extent, the self-flowing arrangement mode is adopted as far as possible during design, the lifting times are reduced, and the lifting energy consumption is saved; the treatment cost of each ton of wastewater is reduced to 20-21 yuan from 40-50 yuan in the prior art.
Description
Technical Field
The utility model belongs to the field of sewage treatment, relates to a landfill leachate treatment system, and particularly relates to a system for emergency treatment of landfill leachate after rain.
Background
Along with the development of economy in China and the increasing promotion of the living standard of people, the centralized garbage treatment and the landfill are scaled, garbage leachate is seriously polluted waste water, the treatment process is complex, the equipment investment cost is high, so the investment of garbage leachate treatment equipment is relatively conservative, but in the daily treatment of the garbage leachate, a large amount of rainwater enters a garbage landfill site in rainy seasons, the concentration of the garbage leachate is reduced due to the dilution of the rainwater, the flow is overlarge, and the risk of dam overflow of a garbage leachate regulating tank is caused.
Therefore, in view of the problems, research is needed to treat landfill leachate emergency treatment systems of different sizes so as to reach the discharge standard.
Disclosure of Invention
In order to solve the problems, the utility model provides the emergency treatment system for the landfill leachate, which has the advantages of low operation cost, simpler operation and control and wide application range.
Therefore, the technical scheme of the utility model is that the emergency treatment system for the landfill leachate is characterized in that: including raw water collecting pit, paper tape filter, nitrification and denitrification biochemical treatment system, MBR membrane biological reaction system, RO reverse osmosis filtration system and medicine system, each link all is through the control of PLC control system, wherein:
the water inlet of the raw water collecting tank is connected with the water outlet of the landfill, the water outlet end of the raw water collecting tank is connected with the paper tape filter through the lift pump, and the water outlet end of the paper tape filter is connected with the nitrification and denitrification biochemical treatment system;
the nitrification and denitrification biochemical treatment system comprises a denitrification tank and a nitrification tank, wherein the water inlet end of the denitrification tank is connected with the water outlet end of the paper tape filter, a dosing port and stirring equipment which are connected with a dosing system are arranged in the denitrification tank, the denitrification tank is communicated with the bottom of the nitrification tank, aeration equipment and filler are arranged in the nitrification tank, the aeration equipment is connected with an external fan, and the water outlet end of the nitrification tank is connected with the MBR membrane biological reaction system through a pipeline;
the MBR membrane biological reaction system comprises an MBR biochemical reactor, an intermediate water tank and a backwashing device, wherein the water inlet end of the MBR biochemical reactor is connected with the water outlet end of the nitrification tank, the water outlet end of the MBR biochemical reactor is connected with the intermediate water tank, an aeration device is arranged in the MBR biochemical reactor and is connected with an external fan, a pipeline of the backwashing device is provided with a drug adding port connected with a drug adding system, and the water outlet of the intermediate water tank is connected with an RO reverse osmosis filter system through a pipeline;
the RO reverse osmosis filtering system comprises a raw water tank and an RO reverse osmosis filtering device, wherein the raw water tank is connected with the water outlet of the middle water tank, a feeding pump, a security filter and a booster pump are sequentially connected between the raw water tank and the RO reverse osmosis filtering device, and the water outlet end of the RO reverse osmosis filtering device is connected with a clean water tank; a dosing port connected with a dosing system and a reuse water pipeline connected with a clear water tank are arranged on a pipeline between the raw water tank and the feeding pump;
the water outlet of the clean water tank is in butt joint with a municipal pipe network.
Further, the medicine system includes nutrient solution case, alkali/acid case, alkali case, germicide case and antisludging agent case, wherein: the nutrient agent box and the alkali/acid box are respectively connected with a dosing port of the denitrification tank through a dosing pump, the acid box and the alkali box are respectively connected with a dosing port of a backwashing device of the MBR membrane biological reaction system through the dosing pump, the bactericide box and the scale inhibitor box are respectively connected with a dosing port of the RO reverse osmosis filtration system through the dosing pump, and flow meters are arranged on pipelines. The medicine feeding system is separately arranged, so that the medicine is convenient to dispense and use, and the cross is prevented.
Preferably, the backwashing device of the MBR membrane biological reaction system comprises a suction pump and a backwashing pump, wherein the water inlet end of the backwashing pump is connected with the intermediate water tank, the water outlet end of the backwashing pump is connected with the water inlet end of the MBR biochemical reactor through a pipeline, a pipeline mixer, a filter and a backwashing electric valve are sequentially arranged on the pipeline, the input end of the suction pump is connected on the pipeline between the backwashing electric valve and the water inlet end of the MBR biochemical reactor through a pipeline, and the output end of the suction pump is connected with the intermediate water tank; the medicine adding port is arranged on the pipeline mixer. The MBR membrane biological reaction system is regenerated through backwashing, can be used repeatedly, improves the efficiency, ensures the treatment effect and reduces the replacement cost.
The further improvement to above-mentioned technical scheme lies in MBR biochemical reactor's mud output is equipped with the sludge reflux pump, and sludge reflux pump output is connected with three pipeline: a sludge return pipeline connected with the nitrification and denitrification biochemical treatment system, a sludge return pipeline connected with the top of the MBR biochemical reactor (aiming at breaking foam by using sludge particles), and a sludge pipeline back-filled to a landfill. The sludge return pipeline is arranged to ensure the return concentration of the sludge and ensure that the quantity of beneficial bacteria meets the requirement.
Furthermore, a concentrated solution recovery pipeline connected with the raw water collecting tank is arranged on a pipeline between the security filter and the booster pump of the RO reverse osmosis filtration system. The concentrated solution enters the treatment system again for circulation, thereby achieving the purpose of protecting the environment.
Furthermore, each link of the emergency processing system is an independent module, each module is provided with an independent PLC control system, and the PLC control systems are in communication connection. Each independent module has respective processing function, can operate alone, carries out corresponding setting according to different concentration waste water to reach the purpose of practicing thrift the operation cost.
Preferably, the blower adopts a Roots blower, and has the characteristics of no need of lubricating oil in an inner cavity, simple structure, stable operation, stable performance and the like.
Has the advantages that: according to the emergency treatment system for the landfill leachate, the COD concentration is gradually reduced through the multi-section treatment units, so that the wastewater concentration is gradually reduced, automation is realized as far as possible through the PLC control system, the operation is simplified to the maximum extent, the self-flowing arrangement mode is adopted as far as possible during design, the lifting times are reduced, and the lifting energy consumption is saved; the treatment cost of each ton of wastewater is reduced to 20-21 yuan from 40-50 yuan in the prior art.
The treatment system adopts a paper tape filter, a nitrification and denitrification biochemical treatment system, an MBR membrane biological reaction system and an RO reverse osmosis filtration system. Most of SS (suspended solid concentration) which is difficult to treat is removed through a paper tape filter, a nitrification and denitrification system thoroughly converts ammonia nitrogen into nitrogen or nitric oxide to be removed from water, mixed liquor after nitrification and denitrification reaction is subjected to sludge-water separation in an MBR (membrane bioreactor) tank, part of sludge is refluxed into a primary denitrification tank through a sludge reflux pump so as to ensure the sludge concentration, the sludge reflux flow is generally 50-200%, and the rest sludge is recharged to a refuse landfill; and then an RO reverse osmosis filtration system is adopted to remove suspended matters, phosphate, heavy metal ions, vitamins and the like in the water, thereby realizing that the water quality reaches the discharge standard.
Drawings
Fig. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a structural arrangement diagram of the present invention.
Shown in the figure: 1. a raw water collecting tank; 11. a lift pump; 2. a paper tape filter; 3. a denitrification reaction system; 31. a nitrification tank; 32. a nitrification tank; 33. a submersible mixer; 34. an aeration device; 35. a Roots blower; 4. MBR membrane biological reaction system; 41. MBR biochemical reactor; 42. an intermediate water tank; 43. a defoaming pipe; 5. an RO reverse osmosis filtration system; 51. A raw water tank; 52. an RO reverse osmosis filtration device; 53. a feed pump; 54. a cartridge filter; 55. a booster pump; 56. a recycling water pipeline; 57. a concentrate recovery line; 6. a clear water tank; 61. a nutrient box; 62. an alkali/acid tank; 63. acid box; 64. an alkali box; 65. a bactericide box; 66. a scale inhibitor tank; 7. a sludge reflux pump; 71. a sludge return line; 72. a sludge return line; 73. a sludge return line.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings, but the embodiment should not be construed as limiting the present invention.
The utility model is shown in fig. 1 and 2:
the utility model provides a landfill leachate emergency treatment system, includes raw water collecting pit 1, paper tape filter 2, nitrify denitrification biochemical treatment system 2, MBR membrane biological reaction system 4, RO reverse osmosis filtration system 5 and medicine system, and each link all is through PLC control system control, wherein:
the water inlet of the raw water collecting tank 1 is connected with the water outlet of the landfill, the water outlet end of the raw water collecting tank is connected with the paper tape filter 2 through the lift pump 11, and the water outlet end of the paper tape filter is connected with the nitrification and denitrification biochemical treatment system 3;
the nitrification and denitrification biochemical treatment system 3 comprises a denitrification tank 31 and a nitrification tank 32, wherein the water inlet end of the denitrification tank is connected with the water outlet end of the paper tape filter, a dosing port connected with a dosing system and a submersible stirrer 33 are arranged in the denitrification tank, the denitrification tank is communicated with the bottom of the nitrification tank, an aeration device 34 is arranged in the nitrification tank and is provided with filler, the aeration device is connected with an external Roots blower 35, and the water outlet end of the nitrification tank 32 is connected with the MBR membrane biological reaction system 4 through a pipeline;
the MBR membrane biological reaction system 4 comprises an MBR biochemical reactor 41, an intermediate water tank 42 and a backwashing device, wherein the water inlet end of the MBR biochemical reactor is connected with the water outlet end of the nitrification tank, the water outlet end of the MBR biochemical reactor is connected with the intermediate water tank, an aeration device is arranged in the MBR biochemical reactor and is connected with an external fan, the top of the MBR biochemical reactor is also provided with a defoaming pipe 43, the pipeline of the backwashing device is provided with a dosing port connected with a dosing system, and the water outlet of the intermediate water tank is connected with an RO reverse osmosis filtering system through a pipeline;
the RO reverse osmosis filtering system 5 comprises a raw water tank 51 and an RO reverse osmosis filtering device 52, wherein the raw water tank is connected with the water outlet of the middle water tank, a feeding pump 53, a cartridge filter 54 and a booster pump 55 are sequentially connected between the raw water tank and the RO reverse osmosis filtering device, and the water outlet end of the RO reverse osmosis filtering device is connected with the clean water tank 6; a dosing port connected with a dosing system and a reuse water pipeline 56 connected with a clear water tank are arranged on a pipeline between the raw water tank 51 and the feeding pump 53;
the water outlet of the clean water tank is in butt joint with a municipal pipe network.
The medicine adding system comprises a nutrient box 61, an alkali/acid box 62, an acid box 63, an alkali box 64, a bactericide box 65 and a scale inhibitor box 66, wherein: the nutrient solution box, alkali/acid case are respectively through adding the medicine port that adds of dosing pump connection denitrification pond, and acid case (oxalic acid), alkali case (sodium hypochlorite) are respectively through adding the medicine port that adds that the medicine pump connects MBR membrane biological reaction system backwash device, and germicide case and antisludging agent case are connected in RO reverse osmosis filtration system's the medicine port that adds through adding the medicine pump respectively, all are equipped with the flowmeter on the pipeline. The medicine feeding system is separately arranged, so that the medicine is convenient to dispense and use, and the cross is prevented.
The backwashing device of the MBR membrane biological reaction system 4 comprises a suction pump 44 and a backwashing pump 45, wherein the water inlet end of the backwashing pump is connected with the intermediate water tank, the water outlet end of the backwashing pump is connected with the water inlet end of the MBR biochemical reactor through a pipeline, a pipeline mixer 46, a filter 47 and a backwashing electric valve 48 are sequentially arranged on the pipeline, the input end of the suction pump is connected on the pipeline between the backwashing electric valve and the water inlet end of the MBR biochemical reactor through a pipeline, a suction electric valve 49 is arranged on the pipeline, and the output end of the suction pump is connected with the intermediate water tank; the medicine adding port is arranged on the pipeline mixer. The MBR membrane biological reaction system is regenerated through backwashing, can be used repeatedly, improves the efficiency, ensures the treatment effect and reduces the replacement cost.
The sludge output of MBR biochemical reactor 41 is equipped with sludge reflux pump 7, and sludge reflux pump output is connected with three pipeline: a sludge return pipeline 71 connected with the nitrification and denitrification biochemical treatment system, a sludge return pipeline 72 connected with the top of the MBR biochemical reactor (for breaking foam by using sludge particles), and a sludge pipeline 73 for recharging to a landfill. The sludge return pipeline is arranged to ensure the return concentration of the sludge and ensure that the quantity of beneficial bacteria meets the requirement.
And a concentrated solution recovery pipeline 57 connected with the raw water collecting tank is arranged on a pipeline between the security filter 54 and the booster pump 55 of the RO reverse osmosis filtration system 5. The concentrated solution enters the treatment system again for circulation, thereby achieving the purpose of protecting the environment.
Each link of the emergency processing system is an independent module, each module is provided with an independent PLC control system (corresponding marks are not made in figures of instruments, meters and the like, and the modules are also connected to the PLC control systems), and the PLC control systems are in communication connection. Each independent module has respective processing function, can operate alone, carries out corresponding setting according to different concentration waste water to reach the purpose of practicing thrift the operation cost.
The specific working process of the landfill leachate emergency treatment system is as follows:
firstly, performing primary solid-liquid separation on raw water through a paper tape filter, enabling the effluent of the paper tape filter to enter a denitrification system, enabling the effluent of the denitrification system to enter an MBR membrane biological reaction system, enabling the effluent of the MBR membrane biological reaction system to enter an RO reverse osmosis filtration system, and discharging the clear water after the clear water is filtered by the RO reverse osmosis filtration system and reaches the standard after the clear water is detected;
the following is an example of detecting the discharge water after the landfill leachate treatment by adopting the landfill leachate emergency treatment system, the example selects the landfill leachate of a certain county and town in the North and Hu, and the monitoring method, the method source and the use instrument of the monitoring project
Device and detection limit.
By using the monitoring method, the drainage of the landfill leachate emergency treatment system is monitored, and the monitoring result is as follows.
The detection result shows that: the quality of effluent water of the landfill leachate treated by the landfill leachate emergency treatment system disclosed by the utility model reaches the standard requirements set in the discharge limit value of the comprehensive primary discharge standard of the landfill leachate. The treatment method of the emergency treatment system for the landfill leachate has good adaptability to the treatment of the landfill leachate, and the treated landfill leachate meets the national discharge standard.
Compared with other treatment methods of the landfill leachate, aiming at the characteristics of the landfill leachate, the method removes most of SS which is difficult to treat through the paper tape filter, then reduces COD concentration step by step through nitrification and denitrification, does not cause excessive burden to a biochemical system, and then ensures that the effluent quality of heavy metal ions and the residual vitamin part which are not removed in the previous step can be further removed to reach the standard through MBR biochemical treatment, a security filter and RO reverse osmosis filtration. The advanced energy-saving technology is adopted, the electrical control realizes automation as much as possible, the operation is simplified to the maximum extent, enterprises using the system save worry, the stability of the effluent quality is ensured, and the labor intensity of manual operation is reduced; the system has the advantages of reducing the energy consumption and the operation cost of a sewage treatment station, along with mobility, having natural advantages particularly for the emergency treatment of the landfill leachate of a landfill in rainy seasons, not requiring a construction period, and being capable of being put into use at any time, so that enterprises using the system are free from worry and cost.
Those skilled in the art will appreciate that the details of the present invention are not described in detail herein.
With the above structure in mind, it should be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and modifications and substitutions based on the known technology in the art are intended to be included within the scope of the present invention as defined by the appended claims.
Claims (10)
1. The utility model provides a landfill leachate emergency treatment system which characterized in that: including raw water collecting pit, paper tape filter, nitrification and denitrification biochemical treatment system, MBR membrane biological reaction system, RO reverse osmosis filtration system and medicine system, each link all is through the control of PLC control system, wherein:
the water inlet of the raw water collecting tank is connected with the water outlet of the landfill, the water outlet end of the raw water collecting tank is connected with the paper tape filter through the lift pump, and the water outlet end of the paper tape filter is connected with the nitrification and denitrification biochemical treatment system;
the nitrification and denitrification biochemical treatment system comprises a denitrification tank and a nitrification tank, wherein the water inlet end of the denitrification tank is connected with the water outlet end of the paper tape filter, a dosing port and stirring equipment which are connected with a dosing system are arranged in the denitrification tank, the denitrification tank is communicated with the bottom of the nitrification tank, aeration equipment and filler are arranged in the nitrification tank, the aeration equipment is connected with an external fan, and the water outlet end of the nitrification tank is connected with the MBR membrane biological reaction system through a pipeline;
the MBR membrane biological reaction system comprises an MBR biochemical reactor, an intermediate water tank and a backwashing device, wherein the water inlet end of the MBR biochemical reactor is connected with the water outlet end of the nitrification tank, the water outlet end of the MBR biochemical reactor is connected with the intermediate water tank, an aeration device is arranged in the MBR biochemical reactor and is connected with an external fan, a pipeline of the backwashing device is provided with a drug adding port connected with a drug adding system, and the water outlet of the intermediate water tank is connected with an RO reverse osmosis filter system through a pipeline;
the RO reverse osmosis filtering system comprises a raw water tank and an RO reverse osmosis filtering device, wherein the raw water tank is connected with the water outlet of the middle water tank, a feeding pump, a security filter and a booster pump are sequentially connected between the raw water tank and the RO reverse osmosis filtering device, and the water outlet end of the RO reverse osmosis filtering device is connected with a clean water tank; a dosing port connected with a dosing system and a reuse water pipeline connected with a clear water tank are arranged on a pipeline between the raw water tank and the feeding pump;
the water outlet of the clean water tank is in butt joint with a municipal pipe network.
2. The emergency landfill leachate treatment system of claim 1, wherein: the medicine adding system comprises a nutrient box, an alkali/acid box, an alkali box, a bactericide box and a scale inhibitor box, wherein: the nutrient agent box and the alkali/acid box are respectively connected with a dosing port of the denitrification tank through a dosing pump, the acid box and the alkali box are respectively connected with a dosing port of a backwashing device of the MBR membrane biological reaction system through the dosing pump, the bactericide box and the scale inhibitor box are respectively connected with a dosing port of the RO reverse osmosis filtration system through the dosing pump, and flow meters are arranged on pipelines.
3. The emergency landfill leachate treatment system of claim 1 or 2, wherein: the backwashing device of the MBR membrane biological reaction system comprises a suction pump and a backwashing pump, wherein the water inlet end of the backwashing pump is connected with the intermediate water tank, the water outlet end of the backwashing pump is connected with the water inlet end of the MBR biochemical reactor through a pipeline, a pipeline mixer, a filter and a backwashing electric valve are sequentially arranged on the pipeline, the input end of the suction pump is connected on the pipeline between the backwashing electric valve and the water inlet end of the MBR biochemical reactor through a pipeline, and the output end of the suction pump is connected with the intermediate water tank; the medicine adding port is arranged on the pipeline mixer.
4. The emergency landfill leachate treatment system of claim 1 or 2, wherein: the mud output of MBR biochemical reactor is equipped with the sludge reflux pump, and sludge reflux pump output is connected with three pipeline: a sludge return pipeline connected with the nitrification and denitrification biochemical treatment system, a sludge return pipeline connected with the top of the MBR biochemical reactor, and a sludge pipeline recharged to the landfill.
5. The emergency landfill leachate treatment system of claim 3, wherein: the mud output of MBR biochemical reactor is equipped with the sludge reflux pump, and sludge reflux pump output is connected with three pipeline: a sludge return pipeline connected with the nitrification and denitrification biochemical treatment system, a sludge return pipeline connected with the top of the MBR biochemical reactor, and a sludge pipeline recharged to the landfill.
6. The landfill leachate emergency treatment system of claim 1, 2 or 5, wherein: and a concentrated solution recovery pipeline connected with the raw water collecting tank is arranged on a pipeline between the security filter and the booster pump of the RO reverse osmosis filtration system.
7. The emergency landfill leachate treatment system of claim 4, wherein: and a concentrated solution recovery pipeline connected with the raw water collecting tank is arranged on a pipeline between the security filter and the booster pump of the RO reverse osmosis filtration system.
8. The emergency landfill leachate treatment system of claim 1, 2, 5 or 7, wherein: each link of the emergency processing system is an independent module, each module is provided with an independent PLC control system, and the PLC control systems are in communication connection.
9. The emergency landfill leachate treatment system of claim 6, wherein: each link of the emergency processing system is an independent module, each module is provided with an independent PLC control system, and the PLC control systems are in communication connection.
10. The emergency landfill leachate treatment system of claim 1, 2, 5, 7 or 9, wherein: the blower adopts a Roots blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121969569.0U CN216073478U (en) | 2021-08-20 | 2021-08-20 | Landfill leachate emergency treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121969569.0U CN216073478U (en) | 2021-08-20 | 2021-08-20 | Landfill leachate emergency treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216073478U true CN216073478U (en) | 2022-03-18 |
Family
ID=80671193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121969569.0U Active CN216073478U (en) | 2021-08-20 | 2021-08-20 | Landfill leachate emergency treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216073478U (en) |
-
2021
- 2021-08-20 CN CN202121969569.0U patent/CN216073478U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204550267U (en) | A kind of containing methyl-2-pyrrolidone (NMP) lithium electricity Waste Water Treatment | |
| CN206767868U (en) | A kind of garbage percolation liquid treating system | |
| CN106277655A (en) | Method for treating garbage percolation liquid and system | |
| CN205295089U (en) | Sewage regeneration system | |
| CN109368927A (en) | A kind of alkali decrement waste water treatment process | |
| CN109502911A (en) | A kind of sewage water treatment method | |
| CN209759259U (en) | Photovoltaic cell production wastewater treatment process system | |
| CN107721102A (en) | A kind of sewage disposal system | |
| CN216073478U (en) | Landfill leachate emergency treatment system | |
| CN210048616U (en) | Plasma sewage purification device | |
| CN211284066U (en) | Kitchen waste fermentation liquor treatment system | |
| CN209481417U (en) | A kind of culturing wastewater processing system | |
| CN210711136U (en) | Intelligent integrated equipment for waste water treatment of garbage transfer station | |
| CN209442806U (en) | A kind of leachate integrated processing unit of small towns refuse transfer station | |
| CN210528702U (en) | Electroplating effluent regeneration and reuse integrates processing apparatus | |
| CN208617637U (en) | Sewage disposal system | |
| CN207811366U (en) | A kind of sewage disposal system | |
| CN111439890A (en) | Modularized garbage leachate treatment equipment | |
| CN205953778U (en) | Integrated treatment of track traffic sewage and recycling system | |
| CN206705895U (en) | A kind of waste water of heat-engine plant processing and reclaiming system | |
| CN204873983U (en) | Filter equipment backwash water processing system | |
| CN219792736U (en) | Small household garbage transfer station percolate treatment device | |
| CN220812108U (en) | Urban domestic wastewater centralized treatment system | |
| CN205133338U (en) | Bury formula integration domestic sewage treatment equipment | |
| CN205133339U (en) | Bury formula integration domestic sewage treatment equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |