CN114291978B - Green tail water treatment system that breeds - Google Patents
Green tail water treatment system that breeds Download PDFInfo
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- CN114291978B CN114291978B CN202210061470.3A CN202210061470A CN114291978B CN 114291978 B CN114291978 B CN 114291978B CN 202210061470 A CN202210061470 A CN 202210061470A CN 114291978 B CN114291978 B CN 114291978B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 109
- 241000196324 Embryophyta Species 0.000 claims description 51
- 238000000746 purification Methods 0.000 claims description 32
- 241000195474 Sargassum Species 0.000 claims description 8
- 238000005276 aerator Methods 0.000 claims description 7
- 244000205574 Acorus calamus Species 0.000 claims description 5
- 235000011996 Calamus deerratus Nutrition 0.000 claims description 5
- 235000005273 Canna coccinea Nutrition 0.000 claims description 5
- 240000008555 Canna flaccida Species 0.000 claims description 5
- 241000233948 Typha Species 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 235000016622 Filipendula ulmaria Nutrition 0.000 claims description 2
- 244000061544 Filipendula vulgaris Species 0.000 claims description 2
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- 241000721692 Lythrum Species 0.000 claims description 2
- 241001149932 Archaeognatha Species 0.000 claims 1
- 238000009313 farming Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 6
- 238000004064 recycling Methods 0.000 description 5
- 208000028659 discharge Diseases 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 241000251468 Actinopterygii Species 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 235000008734 Bergera koenigii Nutrition 0.000 description 2
- 241000252234 Hypophthalmichthys nobilis Species 0.000 description 2
- 240000002393 Murraya koenigii Species 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 238000009360 aquaculture Methods 0.000 description 2
- 244000144974 aquaculture Species 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
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- 235000005976 Citrus sinensis Nutrition 0.000 description 1
- 241000252230 Ctenopharyngodon idella Species 0.000 description 1
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Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a green cultivation tail water treatment system, wherein a cultivation pond in the first half period is connected with a corresponding first-stage ecological ditch through a water pump and a drainage pump, the cultivation pond in the second half period is connected with a corresponding first-stage ecological ditch through the water pump and the drainage pump, a water inlet end of the first-stage ecological ditch is connected with a third-stage ecological ditch through a corresponding flat valve, a water outlet end of the first-stage ecological ditch is connected with a second-stage ecological ditch, and a downstream water outlet end of the second-stage ecological ditch is connected with two ends of the third-stage ecological ditch through a flat valve.
Description
Technical Field
The invention belongs to the technical field of water quality treatment, and particularly relates to a green cultivation tail water treatment system.
Background
Along with the high-speed development of the economy and the improvement of the living standard in China, the demands of aquatic products are increasingly increased, the aquaculture area is continuously enlarged, and the damage of the aquaculture tail water to the environment is gradually increased. The tail water contains a large amount of dead organisms, fish excreta and residual bait decomposers, and pollutants such as organic matters, ammonia nitrogen, nitrite, nitrate, phosphorus and the like can be generated after the decomposers are decomposed, so that the tail water can be recycled to deteriorate the environment of a cultivation water area, and the environment of surrounding water areas can be polluted after the tail water is discharged, and therefore, the aim of seeking a purification recycling and standard-reaching discharge treatment system for the cultivation tail water is urgent.
At present, domestic common tail water treatment processes comprise complete equipment purification equipment and a wetland purification system. The complete set of facility purifying equipment has stable purifying effect and small occupied area, but has large investment and high operation and maintenance difficulty. The wetland purification system has the advantages of low investment and simple operation and maintenance, but large occupied area, and the purification effect is greatly influenced by irregular discharge of tail water.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provide a green cultivation tail water treatment system.
The above object of the present invention is achieved by the following technical means:
a green cultivation tail water treatment system comprises a plurality of cultivation ponds which are divided into a plurality of first half period cultivation ponds and a plurality of second half period cultivation ponds,
each first half period cultivation pond is connected with the corresponding first-stage ecological ditch through the corresponding water pump and the corresponding drainage pump, each second half period cultivation pond is connected with the corresponding first-stage ecological ditch through the corresponding water pump and the corresponding drainage pump,
the water inlet end of the first-stage ecological ditch corresponding to the first half-period culture pond is connected with the third-stage ecological ditch through the corresponding first half-period flat valve, and the water outlet end is connected with the second-stage ecological ditch; the water inlet end of the first-stage ecological ditch corresponding to the second-half period cultivation pond is connected with the third-stage ecological ditch through the corresponding second-half period flat valve, and the water outlet end is connected with the second-stage ecological ditch;
the downstream water outlet end of the secondary ecological ditch is connected with one end of the tertiary ecological ditch through a first half-period flat valve, and the downstream water outlet end of the secondary ecological ditch is also connected with the other end of the tertiary ecological ditch through a second half-period flat valve.
The suction pump connected to the primary ecological ditch as described above is located upstream of the connected drain pump.
As described above, the three-stage ecological ditch is in an open ring shape, the first open end of the three-stage ecological ditch is connected with the downstream water outlet end of the two-stage ecological ditch through the first half-period flat valve, and the second open end of the three-stage ecological ditch is connected with the downstream water outlet end of the two-stage ecological ditch through the second half-period flat valve.
As described above, the three-stage ecological ditch is divided into the first branch and the second branch, one end of the first branch is connected with the first opening end, the other end of the first branch is connected with one end of the second branch, the other end of the second branch is connected with the second opening end, the water inlet end of the first-stage ecological ditch corresponding to the first half-period culture pond is connected with the first branch through the corresponding first half-period flat valve, and the water inlet end of the first-stage ecological ditch corresponding to the second half-period culture pond is connected with the second branch through the corresponding second half-period flat valve.
The drainage position of the drainage pump corresponding to the first-stage ecological ditch is provided with the interception purifying belt, the first-stage ecological ditch is communicated with the corresponding interception purifying belt, a gabion filtering wall and submerged plants are arranged in the first-stage ecological ditch, emergent aquatic plants are planted on one side, close to the drainage pump, of the interception purifying belt, and submerged plants are planted on the bottom of the interception purifying belt; emergent aquatic plants are arranged on two sides of the first-level ecological ditch.
As described above, emergent aquatic plants are arranged on two sides of the secondary ecological ditch, and submerged plants are arranged at the bottom of the secondary ecological ditch.
As described above, emergent aquatic plants are arranged on two sides of the three-level ecological ditch, and a three-dimensional ecological floating bed and a water lifting aerator are arranged in the three-level ecological ditch.
The emergent aquatic plants include typha, seville orange flower, lythrum, calamus, canna, and dropwort; the submerged plant comprises herba Eichhorniae, herba Sonchi Oleracei, sargassum spicatum, and Sargassum gracile.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention can solve the problems of poor purification effect stability, large occupied area, large investment of complete facilities and purification equipment and difficult operation and maintenance of the wetland purification system.
2. The existing ditch structure can prolong the hydraulic retention time to the greatest extent, strengthen the water purifying effect, and enhance the adaptability and stability of the system to water quality deterioration and exogenous pollution;
3. the method can be used for carrying out partition treatment on different tail water pollutant types and concentrations of different kinds of culture ponds, is convenient for carrying out targeted regulation and control on operation and maintenance control (such as residence time, aeration quantity and the like) of ecological ditches, and ensures that the system can stably realize the water purification target.
Drawings
FIG. 1 is a schematic plan view of the present invention;
FIG. 2 is a schematic cross-sectional view of a primary ecological trench;
FIG. 3 is a schematic cross-sectional view of a secondary ecological ditch;
FIG. 4 is a schematic cross-sectional view of a three-level ecological trench.
In the figure: 1-a first half period cultivation pond; 2-a culture pond in the later half period; 3-first-level ecological ditches; 4-a first half period flat valve; 5-three-level ecological ditches; 6-a secondary ecological ditch; 7-a later half period flat valve; 8-a first half-cycle flat valve; 9-a second half-cycle flat valve; 10-intercepting a purifying belt; 11-gabion filter walls; 12-submerged plants; 13-emergent aquatic plants; 14-a three-dimensional ecological floating bed; 15-a water lifting aerator; 16-water surface.
Detailed Description
The invention is further described in connection with the following examples, it being emphasized that, although the invention will be described in connection with the examples, it is not intended that the invention is limited to these examples, which are merely illustrative of the applicability of the inventive solution.
Examples
As shown in fig. 1, the green cultivation tail water treatment system comprises a plurality of cultivation ponds, wherein the cultivation ponds are divided into a plurality of first half period cultivation ponds 1 and a plurality of second half period cultivation ponds 2, each first half period cultivation pond 1 is connected with a corresponding first-stage ecological ditch 3 through a corresponding water suction pump and a corresponding drainage pump, each second half period cultivation pond 2 is connected with a corresponding first-stage ecological ditch 3 through a corresponding water suction pump and a corresponding drainage pump, the water inlet end of the first-stage ecological ditch 3 corresponding to the first half period cultivation pond 1 is connected with a third-stage ecological ditch 5 through a corresponding first half period flat valve 4, and the water outlet end is connected with a second-stage ecological ditch 6; the water inlet end of the first-stage ecological ditch 3 corresponding to the second-half-period culture pond 2 is connected with the third-stage ecological ditch 5 through the corresponding second-half-period flat valve 7, and the water outlet end is connected with the second-stage ecological ditch 6; the downstream water outlet end of the second-stage ecological ditch 6 is connected with one end of the third-stage ecological ditch 5 through a first half-period flat valve 8, and the downstream water outlet end of the second-stage ecological ditch 6 is also connected with the other end of the third-stage ecological ditch 5 through a second half-period flat valve 9. The suction pump connected to the primary ecological ditch 3 is located upstream of the connected drain pump.
In the present embodiment, the first half cycle culture pond 1 includes a first culture pond, a second culture pond, a third culture pond, and a fourth culture pond. The culture pond 2 in the second half period comprises a fifth culture pond, a sixth culture pond, a seventh culture pond and an eighth culture pond. As shown in fig. 2, the eight cultivation ponds are distributed in two rows and four columns (in the existing distribution mode), the second-stage ecological ditch 6 is located between the two rows of cultivation ponds, the third-stage ecological ditch 5 integrally surrounds the eight cultivation ponds, and the first-stage ecological ditch 3 is located on the right side of the cultivation ponds.
In the first half cycle operation, each of the first half cycle flat valves 4 and each of the second half cycle flat valves 7 are closed, the second half cycle flat valve 9 is opened, and the first half cycle flat valve 8 is closed. Tail water of the first culture pond, the second culture pond, the third culture pond and the fourth culture pond is sequentially discharged into the corresponding four first-stage ecological ditches 3 through drainage pumps, and is collected into the second-stage ecological ditches 6 for further purification after being primarily purified through the corresponding first-stage ecological ditches 3. The tail water flows into the three-stage ecological ditch 5 for deep purification. After the tail water meets the recycling requirement through deep purification, each front half period flat valve 4 is opened, and the first culture pond, the second culture pond, the third culture pond and the fourth culture pond pump water from the corresponding first-stage ecological ditch 3 through the water pump, so that the cyclic utilization of the tail water of the first culture pond, the second culture pond, the third culture pond and the fourth culture pond is realized. After the first half period is finished, the second half period is started.
In the latter half cycle operation, each of the first half cycle flat valves 4 and each of the second half cycle flat valves 7 are closed, the second half cycle flat valves 9 are closed, and the first half cycle flat valves 8 are opened. The tail water of the fifth culture pond, the sixth culture pond, the seventh culture pond and the eighth culture pond is sequentially discharged into the corresponding four first-stage ecological ditches 3 through the drainage pump, and is collected into the second-stage ecological ditches 6 for further purification after being primarily purified through the corresponding first-stage ecological ditches 3. The tail water flows into the three-stage ecological ditch 5 for deep purification. After the tail water meets the recycling requirement through deep purification, each later half period flat valve 7 is opened, and the fifth culture pond, the sixth culture pond, the seventh culture pond and the eighth culture pond pump water from the corresponding first-level ecological ditch 3 through a water pump, so that the recycling of the tail water of the fifth culture pond, the sixth culture pond, the seventh culture pond and the eighth culture pond is realized. After the second half period is finished, the first half period is started.
Through the cooperation work of the first half period operation and the second half period operation, a plurality of cultivation ponds can share one three-stage ecological ditch 5, simultaneously avoid three-stage ecological ditch 5 overload operation, when three-stage ecological ditch 5 one end water inlet, when the other end goes out, the purification pressure of the branch road of water inlet is greater than the purification pressure of the branch road of water outlet, the inside emergent aquatic plant and the submerged plant of the branch road of water inlet can't be repaired, through the cooperation work of the first half period operation and the second half period operation, make the water inlet end and the water outlet end of three-stage ecological ditch 5 periodically switch, the restoration of emergent aquatic plant and submerged plant in the three-stage ecological ditch 5 is more favorable to, guarantee the purifying effect.
The third-stage ecological ditch 5 is in an open ring shape, a first open end of the third-stage ecological ditch 5 is connected with a downstream water outlet end of the second-stage ecological ditch 6 through a first half-period flat valve 8, and a second open end of the third-stage ecological ditch 5 is connected with the downstream water outlet end of the second-stage ecological ditch 6 through a second half-period flat valve 9.
The three-level ecological ditch 5 is divided into a first branch and a second branch, one end of the first branch is connected with the first opening end, the other end of the first branch is connected with one end of the second branch, the other end of the second branch is connected with the second opening end, the water inlet end of the first-level ecological ditch 3 corresponding to the first half period culture pond 1 is connected with the first branch through the corresponding first half period flat valve 4, and the water inlet end of the first-level ecological ditch 3 corresponding to the second half period culture pond 2 is connected with the second branch through the corresponding second half period flat valve 7.
By means of the arrangement, the water inlet end and the water outlet end of the three-stage ecological ditch 5 can be periodically switched, and accumulation and poor water purifying effect caused by unidirectional operation are avoided.
The drainage place of the drainage pump corresponding to the first-stage ecological ditch 3 is provided with a interception and purification belt 10, the first-stage ecological ditch 3 is communicated with the corresponding interception and purification belt 10, a gabion filter wall 11 and submerged plants 12 are arranged in the first-stage ecological ditch 3, emergent aquatic plants are planted on one side of the interception and purification belt 10 close to the drainage pump, and submerged plants are planted on the bottom of the interception and purification belt 10; emergent aquatic plants are arranged on two sides of the first-level ecological ditch 3.
In this embodiment, the first-level ecological ditch 3 has a width of about 1.5m and a water depth ranging from 0.3m to 1.0m and a length of 50m. As shown in fig. 2, a interception and purification zone 10 is arranged at the position 3m on the left side of the first-stage ecological ditch 3, and the interception and purification zone 10 is used for preliminary purification, so that the flow rate is slowed down and sediment brought by tail water discharge is deposited. The length of the interception and purification zone 10 along the transverse direction of the first-level ecological ditch 3 is 12m, the width is 1.5m, the water depth of the interception and purification zone 10 is 0.3m, and the planting area of the interception and purification zone 10 is 18m 2 The emergent aquatic plants are firstly inclined from the bottom of the rear end 2m of the interception and purification zone to the water depth of 1.0m to form a first-stage ecological ditch 3. The flat area of the first-stage ecological ditch 3 is provided with a gabion filtering wall 11 at a position 2m away from the slope foot, and the gabion filtering wall 11 is filled with gravel filler with the particle size of 30-60mm. The gabion filter wall 11 has a height of 0.5m and a width of 1m. Planting 45m at bottom of each first-level ecological ditch 2 Submerged plants are planted on the slope land for 20m 2 Emerging plants. The submerged plant is selected from herba Sonchi Oleracei, sargassum spicatum, sargassum gracile and herba Emiliae, and has a planting density of 55 plants/m 2 . The emergent aquatic plants are typha, murraya koenigii, calamus and canna with planting density of 10 plants/m 2 。
Emergent aquatic plants 13 are arranged on two sides of the secondary ecological ditch 6, and submerged plants 12 are arranged at the bottom of the secondary ecological ditch 6. In this embodiment, the secondary ecological ditch 6 is further purified by planting submerged plants 12 and emergent aquatic plants 13. The length of the secondary ecological ditch 6 is 200m, the width is 4m, and the average water depth is 2m. Submerged plants 12 are planted at the bottom of the secondary ecological ditch 6, and emergent aquatic plants 13 are planted on the slope of the secondary ecological ditch 6. Each two-level ecological ditch 6 is planted for 600m 2 Submerged plants are planted on the slope land for 200m 2 Emerging plants. The submerged plant is selected from herba Sonchi Oleracei, sargassum spicatum, sargassum gracile and herba Emiliae, and has a planting density of 65 plants/m 2 . The emergent aquatic plants are typha, murraya koenigii, calamus and canna with planting density of 20 plants/m 2 。
Emergent aquatic plants 13 are arranged on two sides of the three-level ecological ditch 5, and a three-dimensional ecological floating bed 14 and a water lifting aerator 15 are arranged in the three-level ecological ditch 5. The three-level ecological ditch 5 carries out advanced treatment on tail water by arranging measures such as a three-dimensional ecological floating bed 14, a water lifting aerator 15, a slope land planting emergent aquatic plants 13 and the like. In this embodiment, the three-stage ecological ditch 5 has a length of 600m, a width of 10m and an average water depth of 3m. Slope planting 1200m 2 Emergent aquatic plants, wherein the emergent aquatic plants are typha, flowers of Chinese scholartree, calamus and canna, and have a planting density of 20 plants/m 2 . The layout area of the three-dimensional ecological floating bed 14 is 1200m 2 The water lifting aerator 15 is distributed every 50m on average, the total number is 12, the power of the single aerator is 1.5kW, and the oxygenation capacity is 0.9KgO 2 /h。
In the embodiment, the cultivation type in the cultivation pond is mainly four large domestic fishes (black carp, grass carp, silver carp and bighead carp).
Table 1 is a table of data relating to the treatment of pond tail water using an embodiment of the present invention
As can be seen from the data in the table 1, the green cultivation tail water treatment system can effectively remove solid particle impurities in the cultivation tail water, reduce the content of dissolved nitrogen and phosphorus, degrade pollutants and harmful substances, and finally realize the recycling of the tail water after the treated cultivation tail water reaches the cultivation tail water discharge standard.
The foregoing disclosure is merely illustrative of preferred embodiments of the present invention, but the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the technical scope of the present invention should be included in the scope of the present invention. The scope of the invention should therefore be determined by the appended claims and by the modifications made without departing from the principle of the invention and shall fall within the scope of the invention.
Claims (7)
1. The green cultivation tail water treatment system comprises a plurality of cultivation ponds, and is characterized in that the cultivation ponds are divided into a plurality of first half period cultivation ponds (1) and a plurality of second half period cultivation ponds (2),
each first half period cultivation pond (1) is connected with the corresponding first-stage ecological ditch (3) through the corresponding water pump and the corresponding drainage pump, each second half period cultivation pond (2) is connected with the corresponding first-stage ecological ditch (3) through the corresponding water pump and the corresponding drainage pump,
the water inlet end of the first-stage ecological ditch (3) corresponding to the first-half-period culture pond (1) is connected with the third-stage ecological ditch (5) through the corresponding first-half-period flat valve (4), and the water outlet end is connected with the second-stage ecological ditch (6); the water inlet end of the first-stage ecological ditch (3) corresponding to the second-half-period culture pond (2) is connected with the third-stage ecological ditch (5) through the corresponding second-half-period flat valve (7), and the water outlet end is connected with the second-stage ecological ditch (6);
the downstream water outlet end of the secondary ecological ditch (6) is connected with one end of the tertiary ecological ditch (5) through a first half-period flat valve (8), the downstream water outlet end of the secondary ecological ditch (6) is also connected with the other end of the tertiary ecological ditch (5) through a second half-period flat valve (9),
the three-stage ecological ditch (5) is in an open ring shape, a first open end of the three-stage ecological ditch (5) is connected with a downstream water outlet end of the two-stage ecological ditch (6) through a first half-period flat valve (8), and a second open end of the three-stage ecological ditch (5) is connected with the downstream water outlet end of the two-stage ecological ditch (6) through a second half-period flat valve (9).
2. A green farming tail water treatment system according to claim 1, wherein the suction pump connected to the primary ecological ditch (3) is located upstream of the connected drain pump.
3. The green cultivation tail water treatment system according to claim 2, wherein the three-stage ecological ditch (5) is divided into a first branch and a second branch, one end of the first branch is connected with the first opening end, the other end of the first branch is connected with one end of the second branch, the other end of the second branch is connected with the second opening end, the water inlet end of the first-stage ecological ditch (3) corresponding to the first half-period cultivation pond (1) is connected with the first branch through the corresponding first-half-period flat valve (4), and the water inlet end of the first-stage ecological ditch (3) corresponding to the second half-period cultivation pond (2) is connected with the second branch through the corresponding second-half-period flat valve (7).
4. The green cultivation tail water treatment system according to claim 3, wherein a interception and purification belt (10) is arranged at the drainage position of the drainage pump corresponding to the first-stage ecological ditch (3), the first-stage ecological ditch (3) is communicated with the interception and purification belt (10) corresponding to the first-stage ecological ditch, a gabion filtering wall (11) and submerged plants (12) are arranged in the first-stage ecological ditch (3), the interception and purification belt (10) is close to one side of the drainage pump, and submerged plants are planted at the bottom of the interception and purification belt (10); emergent aquatic plants are arranged on two sides of the first-level ecological ditch (3).
5. The green cultivation tail water treatment system according to claim 4, wherein emergent aquatic plants (13) are arranged on two sides of the secondary ecological ditch (6), and submerged plants (12) are arranged at the bottom of the secondary ecological ditch (6).
6. The green cultivation tail water treatment system according to claim 5, wherein emergent aquatic plants (13) are arranged on two sides of the three-stage ecological ditch (5), and a three-dimensional ecological floating bed (14) and a water lifting aerator (15) are arranged in the three-stage ecological ditch (5).
7. The green culture tail water treatment system of claim 6, wherein the emerging plants include typha, bristletail, lythrum, calamus, canna, and dropwort; the submerged plant comprises herba Eichhorniae, herba Sonchi Oleracei, sargassum spicatum, and Sargassum gracile.
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| CN202210061470.3A CN114291978B (en) | 2022-01-19 | 2022-01-19 | Green tail water treatment system that breeds |
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| CN202210061470.3A CN114291978B (en) | 2022-01-19 | 2022-01-19 | Green tail water treatment system that breeds |
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| CN114291978A CN114291978A (en) | 2022-04-08 |
| CN114291978B true CN114291978B (en) | 2024-01-26 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111115989A (en) * | 2020-03-06 | 2020-05-08 | 广西壮族自治区水产引育种中心 | Breeding tail water ditch circulating treatment system |
| CN111642425A (en) * | 2020-06-03 | 2020-09-11 | 上海市水产研究所（上海市水产技术推广站） | Ecological culture system integrating pond culture and tail water treatment and operation maintenance method thereof |
| CN216737993U (en) * | 2022-01-19 | 2022-06-14 | 武汉中科水生环境工程股份有限公司 | Green tail water processing system that breeds |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111115989A (en) * | 2020-03-06 | 2020-05-08 | 广西壮族自治区水产引育种中心 | Breeding tail water ditch circulating treatment system |
| CN111642425A (en) * | 2020-06-03 | 2020-09-11 | 上海市水产研究所（上海市水产技术推广站） | Ecological culture system integrating pond culture and tail water treatment and operation maintenance method thereof |
| CN216737993U (en) * | 2022-01-19 | 2022-06-14 | 武汉中科水生环境工程股份有限公司 | Green tail water processing system that breeds |
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