CN216711856U - Aquaculture tail water treatment facilities - Google Patents
Aquaculture tail water treatment facilities Download PDFInfo
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- CN216711856U CN216711856U CN202220124454.XU CN202220124454U CN216711856U CN 216711856 U CN216711856 U CN 216711856U CN 202220124454 U CN202220124454 U CN 202220124454U CN 216711856 U CN216711856 U CN 216711856U
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Abstract
The utility model discloses an aquaculture tail water treatment device, which comprises: a culture pond; the indoor treatment part comprises a sewage collection buffer pool, a solid-liquid separator and a stacked solid-phase nitrogen and phosphorus removal unit which are sequentially connected, wherein the sewage collection buffer pool is communicated with the culture pool, the solid-liquid separator is connected with the sewage collection buffer pool through a water pump, and the stacked solid-phase nitrogen and phosphorus removal unit is connected with the solid-liquid separator; wherein, the stacked solid-phase nitrogen and phosphorus removal unit is also respectively connected with a sewage collection buffer pool or a culture pool; the outdoor treatment part comprises a reed sedimentation tank and a combined undercurrent artificial wetland, the reed sedimentation tank is respectively connected with the solid-liquid separator and the sewage collection buffer tank, and the combined undercurrent artificial wetland is respectively connected with the stacked solid-phase nitrogen and phosphorus removal unit and the culture pond. The utility model not only has diversified water purification functions, high treatment efficiency and good treatment effect, but also can supplement mineral elements consumed in the culture process, thereby improving the treated water quality.
Description
Technical Field
The utility model relates to the technical field of aquaculture devices, in particular to an aquaculture tail water treatment device.
Background
As two common nutrient elements for limiting primary productivity in aquaculture water, nitrogen and phosphorus have great production influence on aquatic products and are important indexes for pollution of aquaculture. When the culture water is discharged, a large amount of protein is lost, the external environment is directly polluted, and even the ecological imbalance of the surrounding area is caused. To ensure sustainable and healthy development of aquaculture industry, effective wastewater treatment methods are needed to reduce the pollution pressure on the environment outside the aquaculture area.
Artificial wetlands, which are a typical water purification technology, are widely used because they include various functions such as physical filtration, chemical adsorption and precipitation, plant purification, and microbial purification. However, it is often used in combination with a settling tank, a solid-liquid separator, an oxidation pond, etc. to reduce clogging and increase dissolved oxygen in a water body. Meanwhile, due to the unicity of the filter material and the fixity of the whole structure, the common artificial wetland can not meet the requirement of diversified culture tail water purification. In addition, the common artificial wetland is usually only an open-air structure positioned at the side of the pond, and the operation effect of the common artificial wetland is very easily interfered by the environmental conditions such as external temperature and the like.
SUMMERY OF THE UTILITY MODEL
Therefore, in order to solve the technical problems, an indoor stacked combined packing technology is used for ensuring that the denitrification and dephosphorization water purification effect is not interfered by environmental conditions such as external temperature, an outdoor artificial wetland technology is coupled to reduce the construction and operation cost of a water purification facility, and the aquaculture tail water treatment device which has diversified water purification functions, is high in treatment efficiency and good in treatment effect and can improve the water quality is provided.
An aquaculture tail water treatment apparatus comprising:
a culture pond;
the indoor treatment part comprises a sewage collection buffer pool, a solid-liquid separator and a stacked solid-phase nitrogen and phosphorus removal unit which are sequentially connected, wherein the sewage collection buffer pool is communicated with the culture pool, the sewage collection buffer pool can collect tail water of the culture pool, the solid-liquid separator is connected with the sewage collection buffer pool through a water suction pump, and the stacked solid-phase nitrogen and phosphorus removal unit is connected with the solid-liquid separator; the stacked solid-phase nitrogen and phosphorus removal unit can purify the discharged water of the solid-liquid separator and supplement mineral elements, and is also respectively connected with the sewage collection buffer pool or the culture pool;
the outdoor treatment part comprises a reed sedimentation tank and a combined undercurrent artificial wetland, the reed sedimentation tank is respectively connected with the solid-liquid separator and the sewage collection buffer tank, and the combined undercurrent artificial wetland is respectively connected with the stacked solid-phase nitrogen and phosphorus removal unit and the culture tank.
In one embodiment, the stacked solid-phase nitrogen and phosphorus removal unit comprises a water inlet pipe and a combined bracket;
the combined bracket is provided with a peristaltic pump, a carbon source barrel and a multilayer filler box body, the peristaltic pump is connected with the carbon source barrel, and the peristaltic pump can input glucose in the carbon source barrel into the filler box body;
the multi-layer packing boxes are vertically stacked along the height direction, and the packing boxes are connected with the solid-liquid separator through the water inlet pipe, wherein each layer of packing boxes are connected in series and leave a space, and a water body in the upper layer of packing boxes freely overflows from a water level drop to flow to the lower layer of packing boxes and finally flows out from a water outlet of the bottom layer of packing boxes.
In one embodiment, each layer of the filling box body is sequentially filled with polybutylene succinate, polycaprolactone, steel slag, medical stone and shells along the water flow direction.
In one embodiment, the filler box further comprises a pedestrian path, and the pedestrian path is arranged between the multiple layers of filler boxes arranged in parallel.
In one embodiment, the reed sedimentation tank comprises a first-stage sedimentation tank body, a second-stage sedimentation tank body and a third-stage sedimentation tank body which are sequentially arranged, wherein a PE plate for overflowing a water body is arranged between the two adjacent stages of sedimentation tank bodies; and tail drainage water of the solid-liquid separator sequentially passes through the first-stage to Nth-stage sedimentation tank bodies for sedimentation, purification and overflow and then enters the sewage collecting buffer tank.
In one embodiment, reeds are planted in the combined subsurface flow constructed wetland, and the combined subsurface flow constructed wetland comprises shale, steel slag and medical stone which are sequentially filled along the water flow direction;
a water distribution area and a water collection area are arranged outside the shale and the medical stone, the effluent of the stacked solid-phase nitrogen and phosphorus removal unit flows into the water distribution area, and the water collection area is connected with the culture pond;
fences are arranged between the shale and the steel slag and between the steel slag and the medical stone.
Above-mentioned aquaculture tail water treatment facilities through adopting the purification combination under the two kinds of environment of indoor processing part and outdoor processing part, its adaptable all year round various environmental requirement to, adopt solid-liquid separation machine, range upon range of formula solid phase nitrogen and phosphorus removal unit, reed sedimentation tank and combination undercurrent artificial wetland and other multiple tail water treatment process to make up the collocation, it not only possesses diversified water purification function, and the treatment effeciency is high, and the treatment effect is good, and moreover, can also supply the mineral matter element that the farming in-process consumed, thereby can improve the quality of water after handling.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a process diagram of an aquaculture tail water treatment apparatus of the present invention;
FIG. 2 is a schematic structural diagram of a stacked solid-phase denitrification and dephosphorization unit according to the present invention;
fig. 3 is a schematic structural view of the combined subsurface flow constructed wetland of the utility model.
Detailed Description
To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 3, an embodiment of the present invention provides an aquaculture tail water treatment apparatus, including:
a culture pond;
the indoor treatment part comprises a sewage collection buffer pool 1, a solid-liquid separator 3 and a stacked solid-phase nitrogen and phosphorus removal unit which are sequentially connected, wherein the sewage collection buffer pool 1 is communicated with a culture pool, the sewage collection buffer pool 1 can collect tail water of the culture pool, the solid-liquid separator 3 is connected with the sewage collection buffer pool 1 through a water suction pump 2, and the stacked solid-phase nitrogen and phosphorus removal unit is connected with the solid-liquid separator 3; the stacked solid-phase nitrogen and phosphorus removal unit can purify the discharged water of the solid-liquid separator 3 and supplement mineral elements, wherein the stacked solid-phase nitrogen and phosphorus removal unit is also connected with the sewage collection buffer tank 1 or the culture tank respectively;
the outdoor treatment part comprises a reed sedimentation tank and a combined subsurface flow constructed wetland 11, the reed sedimentation tank is respectively connected with the solid-liquid separator 3 and the sewage collection buffer tank 1, and the combined subsurface flow constructed wetland 11 is respectively connected with the stacked solid-phase nitrogen and phosphorus removal unit and the culture pond. In this embodiment, the accumulated sewage of the stacked solid-phase nitrogen and phosphorus removal unit flows back to the sewage collection buffer tank 1, the effluent in winter directly returns to the culture pond, and the effluent in the rest of time flows to the outdoor combined subsurface flow constructed wetland 11.
Above-mentioned aquaculture tail water treatment facilities through adopting the purification combination under the two kinds of environment of indoor processing part and outdoor processing part, its adaptable all year round various environmental requirement to, adopt solid-liquid separation machine 3, range upon range of formula solid phase nitrogen and phosphorus removal unit, reed sedimentation tank and combination undercurrent constructed wetland 11 and other multiple tail water treatment process to make up the collocation, it not only possesses diversified water purification function, and the treatment effeciency is high, and the treatment effect is good, moreover, can also supply the mineral matter element that the farming in-process consumed, thereby can improve the quality of water after handling.
In an embodiment of the utility model, the stacked solid-phase nitrogen and phosphorus removal unit comprises a water inlet pipe 4 and a combined bracket 5;
the combined bracket 5 is provided with a peristaltic pump 6, a carbon source barrel 7 and a multilayer packing box body 8, the peristaltic pump 6 is connected with the carbon source barrel 7, and the peristaltic pump 6 can input glucose in the carbon source barrel 7 into the packing box body 8;
the multiple layers of packing boxes 8 are stacked up and down along the height direction, the packing boxes 8 are connected with the solid-liquid separator 3 through the water inlet pipe 4, wherein each layer of packing boxes 8 are connected in series and leave a space, and water in the upper layer of packing boxes 8 freely overflows from a water level drop to flow to the lower layer of packing boxes 8 and finally flows out from a water outlet 9 of the bottom layer of packing boxes 8. Optionally, polybutylene succinate, polycaprolactone, steel slag, medical stone and shells are sequentially filled into each layer of the filling box body 8 along the water flow direction. All the fillers are stacked into the filler box body 8 after being arranged in the mesh bag, so that the maintenance is convenient, and the filler proportion can be adjusted at any time.
In this embodiment, multilayer packing box 8 piles up from top to bottom along the direction of height and carries out the space stack, and it can reduce the land and occupy, strengthens purifying effect again. Meanwhile, besides the attachment growth of water supply treatment microorganisms, the two degradable biopolymers (poly (butylene succinate) and polycaprolactone) and glucose in the carbon source barrel 7 provide a slow-release carbon source together, steel slag forms an adsorption effect, medical stone and shell form a mineralization effect, and mineral elements consumed in the previous culture process are supplemented while tail water purification is realized.
In an embodiment of the present invention, the filler box further comprises a walkway 10, and the walkway 10 is disposed between the multiple layers of filler boxes 8 disposed in parallel. Therefore, the observation and operation are convenient for manual work.
In an embodiment of the utility model, the reed sedimentation tank comprises a first-stage sedimentation tank body to an Nth-stage sedimentation tank body which are arranged in sequence, and a PE plate for overflowing a water body is arranged between two adjacent stages of sedimentation tank bodies; and tail drainage water of the solid-liquid separator 3 sequentially passes through the first-stage to Nth-stage sedimentation tank bodies for sedimentation, purification and overflow and then enters the sewage collecting buffer tank 1.
In the embodiment, the reed sedimentation tank is divided into three stages, each stage occupies 1/3 of the total area, and each stage is separated by a PE plate, so that the water body overflows; the tail water discharged from the solid-liquid separator 3 enters the first stage, sequentially passes through the sedimentation, purification and overflow of the sedimentation tank body to the final stage sedimentation tank body, and then flows back from the final stage sedimentation tank body to enter the sewage collecting buffer tank 1.
In an embodiment of the present invention, reeds 112 are planted in the combined subsurface flow constructed wetland 11, which includes shale 113, steel slag 115 and medical stone 116 filled in sequence along the water flow direction;
a water distribution area 111 and a water collection area 117 are arranged outside the shale 113 and the medical stone 116, the effluent of the stacked solid-phase nitrogen and phosphorus removal unit flows into the water distribution area 111, and the water collection area 117 is connected with a culture pond;
The first embodiment is as follows:
is provided with a 100m3Sewage collecting buffer pool 1 (occupying 50-75m of land)22.5m deep and the working water depth is about 2.0m) to receive tail water discharged from the culture pond;
the elevation is about 4.5m, and the area is 4-6 m2One high platform for installing the solid-liquid separator 3 (more than or equal to 200 m)3H, the aperture of the filter screen is 200 meshes); the sewage collecting buffer pool 1 is provided with one water suction pump 2 (40 m)3And h), pumping water from the sewage collection buffer tank 1 to the solid-liquid separator 3.
A total area of 100m is arranged outdoors2The reed sedimentation tank (can be about 20m long and 5m wide) is 1.5-2m deep, and the working water depth after reed planting is more than or equal to 1 m; the reed sedimentation tank is divided into three stages, each stage occupies 1/3 of the total area, and each stage is separated by a PE plate, so that the water body overflows; and tail drainage water of the solid-liquid separator 3 enters a first stage, sequentially passes through precipitation, purification and overflow of a reed sedimentation tank to a reed sedimentation tank of the last stage, then flows back from the reed sedimentation tank of the last stage to enter the sewage collection buffer tank 1, and sludge in the reed sedimentation tank is periodically collected and removed.
The height of the four-layer packing box body 8 of the stacked solid-phase nitrogen and phosphorus removal unit is more than or equal to 4.0m, and the height of the greenhouse is more than or equal to 5m in consideration of the extra height of the solid-liquid separator 3. The head position of each group of multilayer packing box bodies 8 is provided with a peristaltic pump 6 and a carbon source barrel 7 which are used for supplementing a carbon source (glucose) to tail water and occupy about 1m2. Each layer of the packing box body 8 is sequentially provided with polybutylene succinate (PBS), Polycaprolactone (PCL), steel slag, medical stone and shells from a water inlet end to a tail water end, and the initial filling proportion (volume ratio) is 15-20%, 10-15% and 45-60% respectively. The filler is arranged in the mesh bag and then stacked into the filler box body 8, so that the maintenance and the replacement are convenient. The PBS and PCL composite solid-phase nitrogen and phosphorus removal process is adopted as a nitrogen and phosphorus removal filter material of the packing box body, and the Hydraulic Retention Time (HRT) is designed to be 8-12 h (10 h). The steel slag is used as the adsorption and dephosphorization filter material of the packing box body 8, and the HRT is designed to be 16-24 h (20 h). Adopts medical stoneAs the mineralized filter material of the filler box body, HRT is designed to be 2 h. Shells are used as mineralized filter materials of the filler box body, and HRT is designed to be 2 h. The length of the single-layer packing box body is 20m, the width of the single-layer packing box body is 1m, the depth of the single-layer packing box body is 0.5m, and the working water depth is 0.3m (provided with an overflow port and a pipeline of 0.4 m); the height of the space between every two layers of the packing box bodies 8 is more than or equal to 0.4m, and every two layers of the packing box bodies 8 are connected in series and freely overflow and flow through the water level fall; 1m is arranged between every two groups of stuffing boxes 8 as a pedestrian and daily operation channel. Based on four layers of packing boxes, 3 groups of four layers of packing boxes are needed, and the number of the packing boxes is 6; a frame is made of concrete or stainless steel between each group of the packing boxes 8, and the glass fiber packing boxes are arranged on the frame; 3 groups of filling box bodies occupy 60m of area2The occupied area of the passage between the stuffing boxes is about 40m2Total of 100m2. And replacing part of the filler 3-4 times every year.
The water distribution area 111 of the outdoor combined subsurface flow constructed wetland 11 receives the effluent of the indoor stacked solid-phase nitrogen and phosphorus removal unit. Shale, steel slag and medical stone are combined, the HRT is 1-1.6d, and the total area is 1500-2000 m2(take 1500m2). The length multiplied by the width multiplied by the height is 20m multiplied by 2.75m multiplied by 1.0m, the wall width is 0.25m, and the floor area of the average single combined subsurface wetland is 55m2Total effective area of 50m2. The first 5m is filled with shale (the particle size is 10-25 mm), the middle part is 15m is filled with steel slag (the particle size is 10-20 mm), the last 5m is filled with medical stone (the particle size is 10-25 mm), the height of the filler is 0.8m, and the average pore volume rate of the filler is 0.43. Planting reed in wetland with average CODMnThe area load rate, TN area load rate and TP area load rate can respectively reach 6.5-20.7 g/m2/d、2.57～8.22g/m2/d、0.41～1.32g/m2And d. Total occupied area: 1650m2. Pruning the reed for 1-2 times every year; part of the filler is replaced 1 time every 1-2 years. The wetland water collecting area is connected with the culture pond, and the wetland effluent can be directly used for culture.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples are only illustrative of several embodiments of the present invention, but should not be construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (6)
1. An aquaculture tail water treatment apparatus, comprising:
a culture pond;
the indoor treatment part comprises a sewage collection buffer pool (1), a solid-liquid separator (3) and a stacked solid-phase nitrogen and phosphorus removal unit which are sequentially connected, wherein the sewage collection buffer pool (1) is communicated with a culture pool, tail water of the culture pool can be collected by the sewage collection buffer pool (1), the solid-liquid separator (3) is connected with the sewage collection buffer pool (1) through a water suction pump (2), and the stacked solid-phase nitrogen and phosphorus removal unit is connected with the solid-liquid separator (3); the stacked solid-phase nitrogen and phosphorus removal unit can purify the discharged water of the solid-liquid separator (3) and supplement mineral elements, and is also respectively connected with the sewage collection buffer tank (1) or the culture tank;
the outdoor treatment part comprises a reed sedimentation tank and a combined undercurrent artificial wetland (11), the reed sedimentation tank is respectively connected with the solid-liquid separator (3) and the sewage collection buffer tank (1), and the combined undercurrent artificial wetland (11) is respectively connected with the stacked solid-phase nitrogen and phosphorus removal unit and the culture tank.
2. The aquaculture tail water treatment device according to claim 1, wherein the stacked solid-phase nitrogen and phosphorus removal unit comprises a water inlet pipe (4) and a combined bracket (5);
the combined support (5) is provided with a peristaltic pump (6), a carbon source barrel (7) and a multilayer packing box body (8), the peristaltic pump (6) is connected with the carbon source barrel (7), and the peristaltic pump (6) can input glucose in the carbon source barrel (7) into the packing box body (8);
the multilayer packing boxes (8) are stacked up and down along the height direction, the packing boxes (8) are connected with the solid-liquid separator (3) through the water inlet pipe (4), wherein each layer of packing boxes (8) are connected in series and leave a space, and water in the upper layer of packing boxes (8) freely overflows to flow to the lower layer of packing boxes (8) through a water level difference and finally flows out from the water outlet (9) of the bottom packing box (8).
3. The aquaculture tail water treatment device according to claim 2, wherein each layer of the filling box body (8) is filled with polybutylene succinate, polycaprolactone, steel slag, medical stone and shells in sequence along the water flow direction.
4. An aquaculture tail water treatment device according to claim 3, further comprising walkways (10), said walkways (10) being arranged between the multi-layered stuffing boxes (8) arranged in parallel.
5. The aquaculture tail water treatment device of claim 1, wherein the reed sedimentation tank comprises a first-stage sedimentation tank body, a second-stage sedimentation tank body and a third-stage sedimentation tank body which are arranged in sequence, and a PE plate for overflowing a water body is arranged between the two adjacent stages of sedimentation tank bodies; and tail drainage water of the solid-liquid separator (3) sequentially passes through the first-stage to Nth-stage sedimentation tank bodies for sedimentation, purification and overflow and then enters the sewage collecting buffer tank (1).
6. The aquaculture tail water treatment device according to claim 1, wherein bulrush (112) is planted in the combined subsurface flow constructed wetland (11), and the combined subsurface flow constructed wetland comprises shale (113), steel slag (115) and medical stone (116) which are filled in sequence along the water flow direction;
a water distribution area (111) and a water collection area (117) are arranged outside the shale (113) and the medical stone (116), effluent of the stacked solid-phase nitrogen and phosphorus removal unit flows into the water distribution area (111), and the water collection area (117) is connected with a culture pond;
fences (114) are arranged between the shale (113) and the steel slag (115) and between the steel slag (115) and the medical stone (116).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202220124454.XU CN216711856U (en) | 2022-01-18 | 2022-01-18 | Aquaculture tail water treatment facilities |
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| CN202220124454.XU CN216711856U (en) | 2022-01-18 | 2022-01-18 | Aquaculture tail water treatment facilities |
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| CN216711856U true CN216711856U (en) | 2022-06-10 |
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