CN211896513U - Pond culture water ecological management system - Google Patents

Pond culture water ecological management system Download PDF

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Publication number
CN211896513U
CN211896513U CN201922049809.4U CN201922049809U CN211896513U CN 211896513 U CN211896513 U CN 211896513U CN 201922049809 U CN201922049809 U CN 201922049809U CN 211896513 U CN211896513 U CN 211896513U
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water
pond
ecological
sedimentation tank
purification
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何贞俊
陈文龙
罗欢
莫伟均
闫晓满
潘文慰
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Pearl River Hydraulic Research Institute of PRWRC
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Pearl River Hydraulic Research Institute of PRWRC
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Abstract

The utility model discloses a pond culture water ecological management system, which comprises a drainage channel for receiving water discharged from a pond, a sedimentation tank, an aeration oxidation tank and an ecological purification tank; the drainage channel, the sedimentation tank, the aeration oxidation tank and the ecological purification tank are sequentially connected in the water flowing direction; the sedimentation tank comprises a sedimentation tank body, floating leaf plants and/or a floating bed arranged in the sedimentation tank body, a first water distribution ditch and a second water distribution ditch which are arranged at two opposite ends of the sedimentation tank body according to the water flowing direction, and a filtering dam arranged between the sedimentation tank body and the second water distribution ditch. The utility model discloses a pond culture water ecological management system carries out multi-level system to aquaculture based on physics effect and biological action principle and purifies, makes the water after handling can cyclic aquaculture utilize or discharge to outside water up to standard. The water quality treatment method based on the system is environment-friendly and strong in operability, can provide reference for the ecological treatment technology of the pond aquaculture water, and is worth popularizing in the field of fishery sewage treatment.

Description

Pond culture water ecological management system
Technical Field
The utility model relates to a sewage treatment technical field especially relates to a pond culture water ecological management system.
Background
China has a long history of pond culture, and the pond culture has become a main culture production mode in China at present and is a main source of aquatic product supply in China. A series of problems of large bait investment, large medicine application, large water change and the like exist in the culture process, so that non-point source pollution of culture discharged water is very serious, nitrogen and phosphorus are main discharge components of an aquaculture system, about 20% and 30% of nitrogen and phosphorus input in the aquaculture system are converted into aquatic products, and the rest nitrogen and phosphorus are deposited in pond bottom materials or discharged into the external environment along with water bodies, so that water body pollution such as eutrophication, red tide, green tide and the like is caused. On the other hand, the polluted water body cannot be recycled, so that the problem of water resource waste is also very prominent.
The cultivation water treatment and the reutilization become key links for researching the sustainable development of fishery cultivation, and are important measures for practicing water ecological civilization. In order to reduce the influence of fishery aquaculture water on the environmental water body, protect the ecological environment of fishery water areas, improve the quality safety level of aquaculture aquatic products, promote the transformation and upgrade of fishery aquaculture, carry out aquaculture water treatment action schemes in various provinces and cities, carry out pilot technology popularization and have huge market demands.
Aiming at the treatment technology of the aquaculture water, physical, chemical and biological treatment methods are mostly adopted, and at present, chemical methods or treatment technologies taking chemical methods into consideration are mostly adopted, but the chemical methods have quick aging, but the cost of the aquaculture is greatly increased and certain side effects are accompanied.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a green's pond culture water ecological management system.
The utility model provides a technical scheme that its technical problem adopted is: the ecological management system for the pond culture water comprises a drainage channel for receiving pond discharge water, a sedimentation tank, an aeration oxidation tank and an ecological purification tank; the drainage channel, the sedimentation tank, the aeration oxidation tank and the ecological purification tank are sequentially communicated in the water flowing direction;
the sedimentation tank comprises a sedimentation tank body, floating leaf plants and/or a floating bed arranged in the sedimentation tank body, a first water distribution ditch and a second water distribution ditch which are arranged at two opposite ends of the sedimentation tank body according to the water flowing direction, and a filtering dam arranged between the sedimentation tank body and the second water distribution ditch.
Preferably, the filter dam comprises a hollow brick wall and a compact brick wall which are oppositely arranged at intervals, and a porous adsorption filter material filled between the hollow brick wall and the compact brick wall;
the air brick wall is used as the water inlet side of the filter dam; and a drain hole is formed in the lower part of the dense brick wall and is used as the water outlet side of the filtering dam.
Preferably, the porous adsorption filter material comprises a crushed stone layer, a fine stone layer and a coarse sand layer which are arranged from top to bottom.
Preferably, the aeration oxidation pond comprises an oxidation pond body, an aeration unit arranged in the oxidation pond body and an ecological floating bed arranged on the surface layer of the oxidation pond body.
Preferably, the aeration unit is an aeration disc or a microporous aeration pipe.
Preferably, an isolation layer is laid on the bottom surface of the oxidation tank body, and the aeration unit is positioned on the isolation layer.
Preferably, the area of the ecological floating bed is equal to or more than 10% of the area of the oxidation pond body.
Preferably, the ecological purification tank comprises a purification tank body, submerged plants arranged at the bottom of the purification tank body, floating plants arranged on the surface layer of the purification tank body, and emergent plants arranged around the purification tank body.
Preferably, the ecological purification tank further comprises filter-feeding aquatic organisms stocked in the purification tank body.
Preferably, the area of the sedimentation tank accounts for 30-40% of the total area of the pond culture water ecological treatment system;
the area of the ecological purification tank accounts for 40-50% of the total area of the pond culture water ecological treatment system.
The utility model has the advantages that: the multi-level system purification is carried out on the aquaculture water based on the principles of physical action and biological action, so that the treated water body can be recycled for aquaculture and utilization or discharged to the external water body after reaching standards. The water quality treatment method based on the system is environment-friendly and strong in operability, can provide reference for the ecological treatment technology of the pond aquaculture water, and is worth popularizing in the field of fishery sewage treatment.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
FIG. 1 is a schematic structural view of an ecological management system for pond culture water according to an embodiment of the present invention;
FIG. 2 is a schematic plan view of the filter dam of FIG. 1;
fig. 3 is a schematic sectional view of the filtering dam of fig. 1.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The utility model discloses a pond culture water ecological management system arranges in the breed pond outside, carries out purification treatment to pond exhaust water, makes it reach breed water standard or outside river course and receives the water standard.
As shown in fig. 1, the system for treating the aquatic ecology in the pond of the present invention may include a drainage channel 10, a sedimentation tank 20, an aeration oxidation tank 30 and an ecological purification tank 40. The drainage channel 10 is used for receiving water discharged from the pond, and the drainage channel 10, the sedimentation tank 20, the aeration oxidation tank 30 and the ecological purification tank 40 are communicated in sequence according to the water flowing direction and are sequentially connected to form the pond culture water ecological management system.
According to the difference of the breeding objects, the utility model discloses a ratio of the area of pond culture water ecological management system to the total area of pond culture to be managed can be adjusted in a flexible way. When the pond culture objects are Penaeus vannamei Boone, Macrobrachium rosenbergii, Penaeus monodon and the like, the floor area of the system is not less than 5% of the total culture area; when the pond culture objects are blue crabs and the like, the floor area of the system is not less than 3% of the total culture area; when pond culture objects are sunfish, micropterus salmoides, pelteobagrus fulvidraco, hybrid snakehead fish, channel catfish and the like, the floor area of the system is not less than 8% of the total culture area; when pond culture objects are turtles and the like, the occupied area of the system is not less than 10% of the total culture area; when the pond culture objects are four major Chinese carps, tilapia and the like, the occupied area of the system is not less than 6 percent of the total culture area.
Wherein, the drainage channel 10 is a conveying channel of the pond culture water and can convey the water to the sedimentation tank 20. The drainage channel 10 can be formed by the original channel of the aquaculture pond in a widening, digging and other modes, and the drainage capacity of the channel is improved. The drain 10 may also be formed by a pipe arrangement.
The sedimentation tank 20 is mainly used for removing suspended substances in a water body, and the area of the sedimentation tank accounts for 30-40% of the total area of the pond culture water ecological treatment system. The sedimentation tank 20 is arranged at a position where the transportation of the aquaculture pond is relatively convenient as far as possible, so that sediments can be conveniently fished and treated. The sedimentation tank 20 may include a sedimentation tank body 21, floating plants and/or a floating bed 22 disposed in the sedimentation tank body 21, a first water distribution channel 23 and a second water distribution channel 24 disposed at opposite ends of the sedimentation tank body 21 in a water flow direction, and a filtering dam 25 disposed between the sedimentation tank body 21 and the second water distribution channel 24.
The first water distribution ditch 23 and the second water distribution ditch 24 can increase the water buffering, ensure the uniform water distribution before and after water inlet and outlet of the sedimentation tank 20, and prevent short-circuit flow and dead water areas. In the floating-leaf plants and/or the floating bed 22, the floating-leaf plants can be water lily, which can further absorb suspended substances in the water body and increase the transparency, and the coverage area of the plants in the stable period is not less than 60% of that of the sedimentation tank 20.
The filtering dam 25 is used for further filtering suspended matters in the water body, and the dam width is not less than 2 meters.
Further, as shown in fig. 2 and 3, the filter dam 25 may include a hollow brick wall 251 and a solid brick wall 252 oppositely arranged at a distance, and a porous adsorption filter material 253 filled between the hollow brick wall 251 and the solid brick wall 252. The air brick walls 251 serve as the water inlet side of the filter dam 25; the lower portion of the solid brick wall 252 is provided with a drain hole 254 as the outlet side of the filter dam 25.
The hollow brick wall 251 can be constructed by two rows of hollow bricks, and the hole direction of the hollow bricks is consistent with the water flow direction. The drain holes 254 in the lower portion of the solid brick wall 252 may be 20cm by 20cm in size.
The porous adsorption filter 253 is formed by arranging stone particles with different particle sizes. In this embodiment, as shown in fig. 3, the porous adsorption filter 253 includes a crushed stone layer 2531, a fine stone layer 2532 and a coarse sand layer 2533, which are arranged from top to bottom, and each of which may have a thickness of 30 cm. The porous adsorption filter material 253 can be combined with landscape effect to plant partial plants.
As shown in fig. 1, the aeration oxidation pond 30 is used for increasing the dissolved oxygen in the water body and accelerating the oxidative decomposition of organic pollutants, and the area of the aeration oxidation pond accounts for about 10% of the total area of the system.
The aeration oxidation tank 30 can comprise an oxidation tank body 31, an aeration unit 32 arranged in the oxidation tank body 31, and an ecological floating bed 33 arranged on the surface layer of the oxidation tank body 31. Wherein, the aeration unit 32 can be an aeration disk or a microporous aeration pipe. In order to prevent the release of the bottom sludge pollutants in the oxidation tank body 31, an insulating layer (not shown) can be laid on the bottom surface of the oxidation tank body, and the aeration unit 32 is positioned on the insulating layer; the insulating layer is optionally a membrane. The ecological floating bed 33 can further absorb suspended substances and nitrogen and phosphorus in the water body, and the area of the ecological floating bed is equal to or more than 10% of that of the oxidation tank body 31.
As shown in FIG. 1, the ecological purifying tank 40 mainly utilizes aquatic organisms with different nutrition levels to remove water pollutants to the maximum extent, and the area of the ecological purifying tank accounts for 40% -50% of the total area of the system.
The ecological purifying tank 40 comprises a purifying tank body 41, submerged plants 42 arranged at the bottom of the purifying tank body 41, floating plants 43 arranged on the surface layer of the purifying tank body 41 and emergent plants 44 arranged around the purifying tank body 41. Wherein the submerged plant 42 comprises at least one of herba Swertiae Dilutae, hydrilla verticillata, and waterweed; the floating plant 43 can be water lily; the emergent aquatic plant may include at least one of Zizania latifolia, canna indica, iris, etc. The covering area of the aquatic plants such as the submerged plant 42, the floating plant 43 and the emergent aquatic plant 44 is not less than 40% of the purifying tank body 41, so as to absorb the nutrient salts such as nitrogen, phosphorus and the like in the purified water body.
The ecological purifying tank 40 further includes filter feeding aquatic organisms 45 which are stocked in the purifying tank body 41, and further filters micro plankton, bacteria, organic debris and the like in the water body. The filter feeding aquatic organism 45 can be selected from Hypophthalmichthys molitrix and Aristichthys nobilis.
The utility model discloses during the use, at first confirm to administer the ratio of pond cultivation total area according to the breed object in pond, and then confirm sedimentation tank 20, aeration oxidation pond 30 and ecological purification pond 40 area. During the processing, pond culture water is carried to sedimentation tank 20 through drainage channel 10, and the buffering of the rivers process first water distribution ditch 23 after getting into sedimentation tank 20 evenly gets into sedimentation tank body 21 degradation suspended solid in the water, gets the maximum degradation through filtering dam 25 adsorption suspended solid afterwards. Then the water body flows into the aeration oxidation pond 30 after passing through the second water distribution ditch 24, and organic pollutants in the water body are decomposed through oxidation. And finally, the water body enters an ecological purification tank 40, and through the biological action of aquatic animals and plants, pollutants such as nitrogen and phosphorus, micro plankton, bacteria, organic debris and the like in the water body are further removed, so that the main indexes such as COD (chemical oxygen demand), total nitrogen, total phosphorus and the like of the treated aquaculture water are not lower than the water quality target of the receiving water body or meet the aquaculture water quality requirement.
Alternatively, the water treated by the pond aquaculture water ecological treatment system can be re-poured into the aquaculture fishpond to form a water body circulation treatment system, so that the problem of water resource shortage or waste is solved. The water treated by the pond culture water ecological treatment system can also be directly discharged into an external river channel, so that the problem of water environment pollution of culture water is solved.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims (10)

1. A pond culture water ecological management system is characterized by comprising a drainage channel for receiving pond discharge water, a sedimentation tank, an aeration oxidation tank and an ecological purification tank; the drainage channel, the sedimentation tank, the aeration oxidation tank and the ecological purification tank are sequentially communicated in the water flowing direction;
the sedimentation tank comprises a sedimentation tank body, floating leaf plants and/or a floating bed arranged in the sedimentation tank body, a first water distribution ditch and a second water distribution ditch which are arranged at two opposite ends of the sedimentation tank body according to the water flowing direction, and a filtering dam arranged between the sedimentation tank body and the second water distribution ditch.
2. The system for the ecological management of pond culture water according to claim 1, wherein the filter dam comprises a hollow brick wall and a compact brick wall which are oppositely arranged at intervals, and a porous adsorption filter material filled between the hollow brick wall and the compact brick wall;
the hollow brick wall is used as the water inlet side of the filtering dam; and a drain hole is formed in the lower part of the dense brick wall and is used as the water outlet side of the filtering dam.
3. The system of claim 2, wherein the porous adsorbent filter comprises a gravel layer, a fine stone layer and a coarse sand layer arranged from top to bottom.
4. The system for the ecological management of pond culture water according to claim 1, wherein the aeration oxidation pond comprises an oxidation pond body, an aeration unit arranged in the oxidation pond body and an ecological floating bed arranged on the surface layer of the oxidation pond body.
5. The pond culture water ecological management system according to claim 4, wherein the aeration unit is an aeration disc or a microporous aeration pipe.
6. The system of claim 4, wherein the bottom surface of the oxidation tank body is coated with an insulating layer, and the aeration unit is located on the insulating layer.
7. The pond culture water ecological remediation system of claim 4 wherein the area of the ecological floating bed is equal to or greater than 10% of the area of the oxidation tank body.
8. The system for ecologically remediating pond culture water as recited in claim 1, wherein the ecological purification pond comprises a purification pond body, submerged plants arranged at the bottom of the purification pond body, floating plants arranged on the surface of the purification pond body, and emergent plants arranged around the purification pond body.
9. The pond culture water ecological management system of claim 8, wherein the ecological purification pond further comprises filter-feeding aquatic organisms housed in the purification pond body.
10. A pond culture water ecological management system according to any one of claims 1 to 9, wherein the area of the sedimentation tank accounts for 30% to 40% of the total area of the pond culture water ecological management system;
the area of the ecological purification tank accounts for 40-50% of the total area of the pond culture water ecological treatment system.
CN201922049809.4U 2019-11-22 2019-11-22 Pond culture water ecological management system Active CN211896513U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112997936A (en) * 2021-02-05 2021-06-22 浙江省海洋水产养殖研究所 Ecological culture district with multiple nutrition levels for mudflat shellfish
CN113200609A (en) * 2021-05-17 2021-08-03 生态环境部华南环境科学研究所 Sunken type zigzag sedimentation channel-composite ecological filtering dam system and culture tail water treatment method
CN113754204A (en) * 2021-10-12 2021-12-07 中国水产科学研究院淡水渔业研究中心 Aquaculture pollution prevention and control and water resource recycling system and operation method
CN115557626A (en) * 2022-08-25 2023-01-03 华南农业大学 Ectopic ecological management method for tail water of aquaculture pond
CN115784536A (en) * 2023-02-03 2023-03-14 山东泽元检测技术有限公司 Method and device for treating tail water of land industrial mariculture

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112997936A (en) * 2021-02-05 2021-06-22 浙江省海洋水产养殖研究所 Ecological culture district with multiple nutrition levels for mudflat shellfish
CN113200609A (en) * 2021-05-17 2021-08-03 生态环境部华南环境科学研究所 Sunken type zigzag sedimentation channel-composite ecological filtering dam system and culture tail water treatment method
CN113754204A (en) * 2021-10-12 2021-12-07 中国水产科学研究院淡水渔业研究中心 Aquaculture pollution prevention and control and water resource recycling system and operation method
CN115557626A (en) * 2022-08-25 2023-01-03 华南农业大学 Ectopic ecological management method for tail water of aquaculture pond
CN115784536A (en) * 2023-02-03 2023-03-14 山东泽元检测技术有限公司 Method and device for treating tail water of land industrial mariculture

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