CN213708062U - Wastewater treatment device and culture system - Google Patents
Wastewater treatment device and culture system Download PDFInfo
- Publication number
- CN213708062U CN213708062U CN202022468574.5U CN202022468574U CN213708062U CN 213708062 U CN213708062 U CN 213708062U CN 202022468574 U CN202022468574 U CN 202022468574U CN 213708062 U CN213708062 U CN 213708062U
- Authority
- CN
- China
- Prior art keywords
- wastewater treatment
- communicated
- mbr
- outlet
- 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.)
- Active
Links
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000005842 biochemical reaction Methods 0.000 claims abstract description 21
- 239000002351 wastewater Substances 0.000 claims abstract description 13
- 239000012528 membrane Substances 0.000 claims description 47
- 238000005273 aeration Methods 0.000 claims description 20
- 238000011010 flushing procedure Methods 0.000 claims description 17
- 238000000926 separation method Methods 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 10
- 239000010802 sludge Substances 0.000 claims description 7
- 238000011001 backwashing Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 2
- 208000035143 Bacterial infection Diseases 0.000 abstract description 6
- 238000009360 aquaculture Methods 0.000 abstract description 6
- 244000144974 aquaculture Species 0.000 abstract description 6
- 238000009313 farming Methods 0.000 abstract description 4
- 208000022362 bacterial infectious disease Diseases 0.000 abstract description 3
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 6
- 239000008213 purified water Substances 0.000 description 6
- 244000052616 bacterial pathogen Species 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- 241001465754 Metazoa Species 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 238000001471 micro-filtration Methods 0.000 description 4
- 241000251468 Actinopterygii Species 0.000 description 3
- 230000032770 biofilm formation Effects 0.000 description 3
- 210000003608 fece Anatomy 0.000 description 3
- 230000001546 nitrifying effect Effects 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000010871 livestock manure Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241000193830 Bacillus <bacterium> Species 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 241000108664 Nitrobacteria Species 0.000 description 1
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- 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
- Separation Using Semi-Permeable Membranes (AREA)
- Biological Treatment Of Waste Water (AREA)
- Activated Sludge Processes (AREA)
Abstract
The utility model belongs to the technical field of aquaculture, a wastewater treatment device and farming systems are disclosed, this wastewater treatment device includes microstrainer, MBR reactor and clean water basin, and the microstrainer has first entry and first export, and waste water can get into in the microstrainer through first entry, and the MBR reactor has second entry and second export, and first export communicates in the second entry through first pipe, and the second export communicates in the clean water basin through the second pipe. The culture system comprises the wastewater treatment device and the culture pond. The utility model provides a waste water treatment device and farming systems not only can shorten biochemical reaction start-up time, can also effectively prevent bacterial disease.
Description
Technical Field
The utility model belongs to the technical field of aquaculture, especially, relate to a wastewater treatment device and farming systems.
Background
The circulating water culture adopts modern comprehensive industrial technology to carry out aquaculture, removes harmful substances such as residual bait, excrement, ammonia nitrogen and the like in the culture water body through mechanical filtration and biological filtration, and then conveys the residual bait, excrement, ammonia nitrogen and the like back to the culture pond after disinfection, oxygenation and temperature regulation, thereby realizing the recycling of the culture water. At present, a Moving-Bed Biofilm Reactor (MBBR) is an aerobic bioreactor of a microbial cell and carrier self-immobilization technology, the average density of carriers after microorganism immobilization is close to the density of water, and the carriers are in a suspended state in the water. Nitrifying bacteria are fixed on the surface of the suspended filler, and when the culture wastewater flows through the MBBR tank, the nitrifying bacteria convert ammonia nitrogen into nitrate so as to achieve the aim of removing the ammonia nitrogen.
When the traditional MBBR tank biofilm formation is started, the biofilm formation is realized mainly by the reproduction of a small amount of nitrobacteria carried by the skin intestinal tracts of cultured animals, and meanwhile, a large amount of heterotrophic bacillus and nutrient substances are required to be added for assisting the biofilm formation, so that the start of the biological filter tank can be finished in about 20-30 days, and the culture production is influenced; moreover, MBBR pond fillers are prone to attachment of pathogenic bacteria, which once attached will remain permanent, increasing the risk of infection of the farmed animals.
Therefore, a wastewater treatment device and a cultivation system are needed to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a waste water treatment device and farming systems not only can shorten biochemical reaction start-up time, can also effectively prevent bacterial disease.
To achieve the purpose, the utility model adopts the following technical proposal:
an apparatus for treating wastewater, comprising:
a microfiltration machine having a first inlet through which wastewater can enter the microfiltration machine and a first outlet;
an MBR reactor having a second inlet and a second outlet, the first outlet being in communication with the second inlet via a first tube;
and the second outlet is communicated with the clean water tank through a second pipe.
Preferably, the MBR comprises a biochemical reaction chamber and a membrane separation chamber communicated with the biochemical reaction chamber, wherein activated sludge is arranged in the biochemical reaction chamber, and a membrane component is arranged in the membrane separation chamber.
Preferably, the membrane aperture of the membrane component is 0.1-0.4 μm.
Preferably, an aeration device is further arranged in the membrane separation chamber.
Preferably, the aeration device comprises an aeration pipeline and a fan, the aeration pipeline is positioned below the membrane module, and the fan is communicated with the aeration pipeline.
Preferably, the biochemical reaction chamber is located at the front end of the MBR reactor, the second inlet is opened in the biochemical reaction chamber, the membrane separation chamber is located at the rear end of the MBR reactor, and the second outlet is opened in the membrane separation chamber.
Preferably, the membrane bioreactor further comprises a back-flushing device, wherein the back-flushing device is connected to the MBR and is used for flushing the interior of the MBR.
Preferably, the backwashing device comprises a flushing pipe and a dosing tank communicated with the flushing pipe, one end of the flushing pipe is communicated with the clean water tank, and the other end of the flushing pipe is communicated with the second outlet.
A culture system comprises a culture pond and further comprises the wastewater treatment device, wherein the culture pond is communicated with the first inlet, and the culture pond is communicated with the clean water pond through a third pipe.
Preferably, the cultivation device further comprises a liquid level balancer, and the liquid level balancer is communicated between the cultivation pond and the micro-filter.
The utility model has the advantages that:
the utility model provides a waste water treatment device, waste water flow through microstrainer and MBR reactor in proper order and obtain the purified water, and the clean water basin is used for collecting the purified water to be used for cyclic utilization. The wastewater firstly passes through a microfiltration machine, the microfiltration machine can remove larger particle suspended matters such as fish manure, residual bait and the like, and then enters an MBR (membrane bioreactor) for biochemical reaction, the MBR can be inoculated with common activated sludge, so that the MBR can be started within 2-3 days, and the starting time is short; moreover, the MBR can effectively retain pathogenic bacteria and small-particle suspended matters, reduce the content of the pathogenic bacteria in the culture pond and prevent bacterial diseases of cultured animals.
The utility model provides an aquaculture system flows in aquaculture pond again with the purified water in the clear water pond, forms the hydrologic cycle, and above-mentioned effluent treatment plant's setting makes this aquaculture system's biochemical reaction start-up time short, but also can effectively prevent bacterial disease.
Drawings
FIG. 1 is a schematic view of a wastewater treatment plant according to an embodiment of the present invention;
fig. 2 is a schematic view of a cultivation system provided by the second embodiment of the present invention.
In the figure:
1. a micro-filter; 2. an MBR reactor; 3. a clean water tank; 5. a culture pond; 7. a liquid level balancer;
21. a membrane module; 41. a flush tube; 42. a dosing box; 61. a first tube; 62. a second tube; 63. a third tube; 64. a water pump;
221. an aeration pipeline; 222. a fan.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts throughout, or parts having the same or similar functions. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "mounted" are to be construed broadly and can include, for example, a mounted connection, a removable connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediary, a connection between two elements, or an interaction between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include both the first and second features being in direct contact, and may also include the first and second features being in contact, not in direct contact, but with another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Example one
As shown in fig. 1, the present embodiment provides a wastewater treatment apparatus including a micro-filter 1, an MBR reactor 2, and a clean water tank 3, the micro-filter 1 having a first inlet through which wastewater can enter the micro-filter 1 and a first outlet; the MBR reactor 2 has a second inlet and a second outlet, the first outlet being in communication with the second inlet via a first pipe 61; the second outlet is connected to the clean water tank 3 through a second pipe 62.
In the wastewater treatment device provided by the embodiment, wastewater sequentially flows through the micro-filter 1 and the MBR 2 to obtain purified water, and the clean water tank 3 is used for collecting the purified water for recycling. The wastewater firstly passes through the micro-filter 1, the micro-filter 1 can remove larger particle suspended matters such as fish manure and residual bait, and then enters the MBR 2 for biochemical reaction, and the MBR 2 can be inoculated with common activated sludge, so that the MBR 2 can be started within 2-3 days, and the starting time is short; moreover, the MBR 2 can effectively retain pathogenic bacteria and small-particle suspended matters, reduce the content of the pathogenic bacteria in the culture pond and prevent bacterial diseases of cultured animals. In this embodiment, the specific structure and the operation principle of the micro-filter 1 can refer to the prior art, and are not described herein again.
Specifically, the MBR reactor 2 includes a biochemical reaction chamber and a membrane separation chamber communicated with the biochemical reaction chamber, the biochemical reaction chamber is provided with activated sludge, and the membrane separation chamber is provided with a membrane module 21. The activated sludge contains nitrifying bacteria, and strong toxic ammonia nitrogen in the wastewater is converted into non-toxic nitrate nitrogen, so that the aim of removing the ammonia nitrogen is fulfilled; the filtering action of the membrane module 21 can remove most of bacteria, fungi, colloids and part of macromolecular organic matters in the wastewater.
More specifically, the biochemical reaction chamber is located at the front end of the MBR reactor 2, the second inlet is opened at the biochemical reaction chamber, the membrane separation chamber is located at the rear end of the MBR reactor 2, and the second outlet is opened at the membrane separation chamber. The second pipe 62 is provided with a water pump 64, the membrane module 21 is immersed in water, the water flows through the second pipe 62 into the clean water tank 3 through the negative pressure suction effect of the water pump 64, and meanwhile, the membrane module 21 isolates activated sludge and particles in the MBR reactor 2.
Optionally, the membrane aperture of the membrane module 21 is 0.1-0.4 μm. In this embodiment, the membrane pore size is preferably 0.1 μm, which improves the filtration effect.
Particularly, an aeration device is also arranged in the membrane separation chamber. The aeration device comprises an aeration pipeline 221 and a fan 222, wherein the aeration pipeline 221 is positioned below the membrane module 21, and the fan 222 is communicated with the aeration pipeline 221. The blower 222 is connected to the aeration line 221, blows gas into the aeration line 221, and blows the gas out toward the membrane module 21 through the outlet port of the aeration line 221. The aeration device fully washes the membrane module 21, reduces the pollution on the surface of the membrane module 21, ensures that the membrane module is not easy to block, and prolongs the cleaning interval.
The wastewater treatment device provided by the embodiment further comprises a back washing device, wherein the back washing device is connected to the MBR 2 and is used for washing the inside of the MBR 2. The membrane module 21 is cleaned in time by a back washing device during operation, so that membrane pollution is effectively reduced, membrane flux is maintained, and the service life of the membrane is prolonged.
Specifically, the backwashing device includes a flushing pipe 41 and a dosing tank 42 communicated with the flushing pipe 41, and one end of the flushing pipe 41 is communicated with the clean water tank 3, and the other end is communicated with the second outlet. The clean water in the clean water tank 3 reversely flows into the membrane separation chamber of the MBR 2 to flush the membrane module 21. Meanwhile, the medicine adding box 42 is used for adding medicine into the membrane filaments of the membrane module 21 for maintenance chemical cleaning, so that the long-term stable operation of the membrane module 21 is favorably maintained.
In this embodiment, the first pipe 61 and the flushing pipe 41 are also provided with a water pump 64 for providing power to the water in the respective pipes. The flushing pipe 41 and the second pipe 62 are provided with valve bodies for controlling the opening and closing of the respective pipelines.
Example two
As shown in fig. 2, the present embodiment provides a cultivation system, wherein the same or corresponding parts as or to the first embodiment are given the same reference numerals as the first embodiment. The culture system comprises a culture pond 5 and the wastewater treatment device provided by the first embodiment, wherein the culture pond 5 is communicated with the first inlet, and the culture pond 5 is communicated with the clean water tank 3 through the third pipe 63.
The culture system provided by the embodiment enables purified water in the clean water tank 3 to flow into the culture tank 5 again for recycling, so that water circulation is formed, the setting of the wastewater treatment device enables the biochemical reaction starting time of the culture system to be short, and bacterial diseases can be effectively prevented.
The culture system provided by the embodiment further comprises a liquid level balancer 7, and the liquid level balancer 7 is communicated between the culture pond 5 and the micro-filter 1. The liquid level balancer 7 is used for controlling the liquid level height of the culture pond 5.
Breed the bottom in pond 5 and be hourglass hopper-shaped, bottom central authorities are the drain, and the reuse water that flows in from clean water basin 3 gets into along 45 degrees angles of pool wall and breeds pond 5, forms the swirl, and the pond 5 is bred to the drain discharge with the incomplete bait of fish dung propelling movement.
In fig. 1 and 2 of the above embodiment, the arrows indicate the flow direction of the liquid or solid.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. An apparatus for treating wastewater, comprising:
a micro-filter (1) having a first inlet through which wastewater can enter the micro-filter (1) and a first outlet;
an MBR reactor (2) having a second inlet and a second outlet, the first outlet being in communication with the second inlet via a first pipe (61);
the second outlet is communicated with the clean water tank (3) through a second pipe (62).
2. The wastewater treatment plant according to claim 1, wherein the MBR reactor (2) comprises a biochemical reaction chamber and a membrane separation chamber communicated with the biochemical reaction chamber, wherein activated sludge is arranged in the biochemical reaction chamber, and a membrane module (21) is arranged in the membrane separation chamber.
3. The wastewater treatment apparatus according to claim 2, wherein the membrane pore diameter of the membrane module (21) is 0.1 to 0.4 μm.
4. The wastewater treatment apparatus according to claim 2, wherein an aeration device is further provided in said membrane separation chamber.
5. The wastewater treatment device according to claim 4, characterized in that the aeration device comprises an aeration pipeline (221) and a fan (222), the aeration pipeline (221) is positioned below the membrane module (21), and the fan (222) is communicated with the aeration pipeline (221).
6. The wastewater treatment plant according to claim 2, wherein the biochemical reaction chamber is located at the front end of the MBR (2), the second inlet is open to the biochemical reaction chamber, the membrane separation chamber is located at the rear end of the MBR (2), and the second outlet is open to the membrane separation chamber.
7. Wastewater treatment plant according to claim 1, further comprising a back-flushing device connected to the MBR reactor (2) for flushing the interior of the MBR reactor (2).
8. The wastewater treatment apparatus according to claim 7, wherein the backwashing means includes a flushing pipe (41) and a dosing tank (42) communicated with the flushing pipe (41), and one end of the flushing pipe (41) is communicated with the clean water tank (3) and the other end is communicated with the second outlet.
9. A cultivation system comprising a cultivation pond (5), characterized in that it further comprises a wastewater treatment device according to any of claims 1 to 8, said cultivation pond (5) being in communication with said first inlet, said cultivation pond (5) being in communication with said clean water basin (3) via a third pipe (63).
10. The cultivation system as claimed in claim 9, further comprising a liquid level balancer (7), the liquid level balancer (7) being in communication between the cultivation pond (5) and the micro-filter (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022468574.5U CN213708062U (en) | 2020-10-30 | 2020-10-30 | Wastewater treatment device and culture system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022468574.5U CN213708062U (en) | 2020-10-30 | 2020-10-30 | Wastewater treatment device and culture system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213708062U true CN213708062U (en) | 2021-07-16 |
Family
ID=76801651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022468574.5U Active CN213708062U (en) | 2020-10-30 | 2020-10-30 | Wastewater treatment device and culture system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213708062U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12577136B2 (en) | 2023-06-02 | 2026-03-17 | K&L Equipment, LLC | Wastewater treatment system including a moving bed assembly |
-
2020
- 2020-10-30 CN CN202022468574.5U patent/CN213708062U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12577136B2 (en) | 2023-06-02 | 2026-03-17 | K&L Equipment, LLC | Wastewater treatment system including a moving bed assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107751085B (en) | Circulating seawater culture system based on microalgae membrane bioreactor | |
| CN106430847A (en) | Intensive swine wastewater treating equipment | |
| CN109095714A (en) | A kind of good anaerobism alternative expression sewage purifier and purification process | |
| CN108094301A (en) | A kind of circulating water culture system and application method based on the processing of biological flocculation dystopy | |
| CN219058736U (en) | Frog class breeds effluent disposal system | |
| CN207948624U (en) | A kind of circulating water culture system based on the processing of biological flocculation dystopy | |
| CN114716110A (en) | Aquaculture wastewater treatment system and method | |
| CN213708062U (en) | Wastewater treatment device and culture system | |
| CN107540160A (en) | Cultivation wastewater purification handling process and its device | |
| CN214693687U (en) | Fish manure water treatment system | |
| CN207707085U (en) | A kind of aquatic products flowing water culture circulatory system comprising MBR and NF technologies | |
| CN213416601U (en) | Aquaculture circulating water treatment system | |
| CN212035492U (en) | Recirculating aquaculture system of degree of depth denitrogenation | |
| CN110818067B (en) | Shrimp aquaculture tail water treatment system with symbiotic nitrifying bacteria and photosynthetic bacteria | |
| CN211631396U (en) | Blowdown apparatus suitable for large-scale chinese sturgeon culture pond | |
| CN211910169U (en) | Recirculating aquaculture system with zero tail water discharge | |
| CN112960871A (en) | Industrial aquaculture zero-emission resource recovery and purification system and purification process thereof | |
| CN107585958A (en) | Cultivating wastewater purification EGR | |
| CN208857104U (en) | Wastewater from pig farm processing system | |
| CN206188598U (en) | Waste water treatment equipment that raises pigs intensifies | |
| CN213266175U (en) | Breeding wastewater purification treatment device | |
| CN110606643B (en) | Fish pond fish-raising fish manure sewage treatment and cyclic utilization system | |
| CN117088574A (en) | A high-density aquaculture circulating water purification system | |
| CN210367363U (en) | Wastewater treatment device for dairy farm breeding | |
| CN211664906U (en) | Aquaculture tail water treatment device based on suspended filler biofilm technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |