CN113072188A - Pond tail water treatment system - Google Patents
Pond tail water treatment system Download PDFInfo
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- CN113072188A CN113072188A CN202110357369.8A CN202110357369A CN113072188A CN 113072188 A CN113072188 A CN 113072188A CN 202110357369 A CN202110357369 A CN 202110357369A CN 113072188 A CN113072188 A CN 113072188A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 105
- 238000005273 aeration Methods 0.000 claims abstract description 44
- 239000010865 sewage Substances 0.000 claims abstract description 27
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 9
- 231100000719 pollutant Toxicity 0.000 claims abstract description 9
- 238000012545 processing Methods 0.000 claims abstract description 5
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
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- 239000011152 fibreglass Substances 0.000 claims description 2
- 239000011150 reinforced concrete Substances 0.000 claims description 2
- 108091006146 Channels Proteins 0.000 claims 3
- 102000010637 Aquaporins Human genes 0.000 claims 1
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- 229920006327 polystyrene foam Polymers 0.000 claims 1
- 239000002023 wood Substances 0.000 claims 1
- 230000002262 irrigation Effects 0.000 abstract description 16
- 238000003973 irrigation Methods 0.000 abstract description 16
- 235000015097 nutrients Nutrition 0.000 abstract description 5
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Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/327—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae characterised by animals and plants
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/322—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
-
- 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
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biotechnology (AREA)
- Botany (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention provides a fishpond tail water treatment system, and relates to the technical field of sewage treatment. This pond tail water processing system, this processing system include ecological irrigation canals and ditches, aeration tank, ecological chinampa, constructed wetland, ecological restoration pond, the ecological irrigation canals and ditches are connected with the delivery port of pond, aeration tank and ecological irrigation canals and ditches intercommunication, ecological chinampa sets up in aeration tank inner, constructed wetland and aeration tank intercommunication, ecological restoration pond and constructed wetland intercommunication. The invention provides a fishpond tail water treatment system, which can filter and degrade fishpond tail water, absorb, convert and decompose pollutants and nutrients in sewage, basically purify the fishpond tail water completely, and fully utilize useful substances in the tail water.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a fishpond tail water treatment system.
Background
The fishpond tail water is tail water generated in the aquaculture process of aquatic products, in the aquaculture process of a fishpond, aquaculture personnel can put foodstuff and medicines into the fishpond to ensure that fishes can grow fast and healthily, but most of the substances can not be dissolved in water completely, and when the substances are not eaten by the fishes, the substances can be precipitated, so that the water quality of the fishpond can be damaged for a long time, the growth of the fishes is influenced, and the fishpond tail water needs to be drained regularly.
At present, fishpond tail water is directly discharged into the natural environment, and the fishpond tail water finally permeates into the ground to pollute an underground water source; or come together to cause pollution and damage to the environment. The fishpond tail water treatment system is designed to solve the existing problems and is imperative, the fishpond tail water treatment system has the advantages of large floor area and high construction cost and operation cost, the existing space and environment of a fishpond water area are reasonably utilized for transformation and construction, and the cost are relatively low and can continuously operate.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a fishpond tail water treatment system, which solves the problems that the natural environment is damaged by the current treatment mode of directly discharging fishpond tail water, and the treatment cost is too high through the evolution of the traditional sewage treatment process.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a fishpond tail water processing system, this processing system includes ecological irrigation canals and ditches, aeration tank, ecological chinampa, constructed wetland, ecological restoration pond, the ecological irrigation canals and ditches are connected with the delivery port of fishpond, aeration tank and ecological irrigation canals and ditches intercommunication, ecological chinampa sets up in aeration tank inner, constructed wetland and aeration tank intercommunication, ecological restoration pond and constructed wetland intercommunication.
Preferably, ecological irrigation canals and ditches comprise water, soil and biology, and submerged plants are planted at the bottom ends of the ecological irrigation canals and ditches, and an ecological interception type irrigation canals and ditches system mainly composed of the submerged plants can slow down water speed, promote the precipitation of particles carried by running water, absorb and intercept redundant nutrients in water, decompose and degrade organic pollutants in the water, and simultaneously, the bottom mud is sealed through the action of submerged plant communities, the slow release of bottom mud pollutants is reduced, and the endogenous pollution is reduced. Meanwhile, the existence of submerged plants can accelerate nitrogen and phosphorus interface exchange and transfer, and the nitrogen and phosphorus content in sewage is reduced, the organic pollution content in water is reduced, and the water body is purified under the action of microorganisms in water. Meanwhile, the secondary pollution problem is solved by harvesting submerged plants.
Preferably, the aeration tank is internally provided with a surface oxygenation aerator and corollary equipment, the bottom of the aeration tank is hardened, the bottom of the aeration tank is provided with a set of sewage discharge system, the aeration tank carries out sewage treatment by an activated sludge method, certain sewage retention time is provided in the tank, the oxygen quantity required by aerobic microorganisms and the mixing condition of full contact of sewage and activated sludge are met, and the degradation degree of organic pollutants mainly depends on the designed aeration reaction condition of people.
Preferably, the artificial wetland mainly comprises a horizontal subsurface flow wetland, a vertical subsurface flow wetland, a biological pond and a composite process formed by combining the processes, the artificial wetland consists of a water-resisting layer (impermeable film), artificial wetland fillers and artificial wetland plants, the artificial wetland is a unique soil-plant-microorganism ecosystem and is designed and built by artificially simulating the structure and the function of a natural wetland, when sewage passes through the treatment system, pollutants and nutrients in the sewage can be absorbed, converted and decomposed by plants and microorganisms in the system, thereby achieving the effect of purifying water quality, compared with the conventional sewage treatment system, the artificial wetland has the advantages of low investment, low energy consumption and treatment cost, good sewage treatment effect, and the wetland technology integrates sewage treatment, landscape construction and economic benefits.
Preferably, the waterproof layer filler is limestone with the particle size of 1-5cm and the filler depth of 1.0-1.5m, and is selected and configured according to different processes and process combinations.
Preferably, the constructed wetland can be constructed by reinforced concrete, glass fiber reinforced plastic or brickwork.
Preferably, two submersible pumps are arranged between the ecological ditch and the aeration tank, one is used and the other is used, and the submersible pumps pump water in the ecological ditch into the inner end of the aeration tank.
Preferably, a water distribution channel and a water collection channel are respectively arranged on two sides of the artificial wetland, water in the aeration tank enters the artificial wetland through the water distribution channel, and water in the artificial wetland enters the ecological restoration tank through the water collection channel.
Preferably, submerged plants are planted at the bottom inside the ecological restoration tank, pollutants in the water body are effectively degraded after the ecological ditch, the aeration tank and the artificial wetland system are carried out, and the biological purification tank is used for carrying out deep treatment on the water body and further improving the water quality of the water body.
(III) advantageous effects
The invention provides a fishpond tail water treatment system. The method has the following beneficial effects:
1. the fishpond tail water treatment system designed by the invention combines an ecological ditch, an aeration tank, an ecological floating island, an artificial wetland and an ecological restoration tank, can filter and degrade fishpond tail water, decomposes, absorbs, converts and degrades pollutants and nutrients in sewage, basically and completely purifies the fishpond tail water, and fully utilizes useful substances in the tail water.
2. Compared with other purification modes, the fishpond tail water treatment system designed by the invention has very low cost, is simple in whole system construction, has good landscape effect, and integrates sewage treatment, landscape construction and economic benefits.
Drawings
Fig. 1 is a plan view of a fishpond tail water treatment system according to an embodiment of the invention;
FIG. 2 is a schematic structural view of an artificial wetland of the fishpond tail water treatment system provided by the invention;
FIG. 3 is a flow chart of the fishery tail water treatment process provided by the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1-2, an embodiment of the present invention provides a fishpond tail water treatment system, which includes an ecological ditch, an aeration tank, an ecological floating island, an artificial wetland and an ecological restoration tank, wherein the ecological ditch is connected to a water outlet of a fishpond, the aeration tank is communicated with the ecological ditch, the ecological floating island is disposed at an inner end of the aeration tank, the artificial wetland is communicated with the aeration tank, the ecological restoration tank is communicated with the artificial wetland, a pond culture area of the fishpond is 847.5 mu, 34 existing large fishponds (about 20 mu/mu), 80 remaining small fishponds (about 2-5 mu/mu), an existing central ditch length 2900m, an average width 12m, and a tail water treatment system floor 69 of the current planning accounts for 8.1% of a total culture area of the fishpond.
This project design's ecological irrigation canals and ditches, it forms to utilize original central irrigation canals and ditches transformation of fishing ground, behind the desilting to the irrigation canals and ditches, the submerged plant is planted in a large number in the bottom, this system mainly plays the filtration to the fishing ground tail water, the sediment, the organic matter, the preliminary degradation effect of nitrogen phosphorus, this ecological irrigation canals and ditches length 2900m, all wide 12m, the depth of water is about 1.5m, ecological irrigation canals and ditches have certain width and degree of depth, by water, soil and biological component, have self unique construction and exert the water clean system of corresponding ecological function, the shallower ecological irrigation canals and ditches of degree of depth, mainly with good oxygen purification as the owner, ecological irrigation canals and ditches can be through holding back a series of effects such as silt, soil adsorption, plant absorption, biodegradation, reduce soil and water loss, reduce.
The area of the aeration tank designed at this time is 3000m2Setting a surface oxygen aeration machine and corollary equipment, configuring a set of sewage system after the bottom is hardened, and configuring an ecological floating island on the surface of an aeration tank for improving the whole ecological landscape effect, wherein the ecological floating island is 200m in total2。
The area of the constructed wetland designed by the project is 1800m2The artificial wetland filler comprises a water-resisting layer, artificial wetland filler and emergent aquatic plants, wherein the water-resisting layer is tamped by adopting a PE impermeable film, a geomembrane, bentonite or 20-30cm of clay, and the tamping degree coefficient is not lower than 95%. The artificial wetland filler adopts limestone with the grain diameter of 1-5cm and the filler depth of 1.0-1.5m, and the grain diameter and the filler depth of the filler are selected and matched according to different processes or combinations. Emergent aquatic plants are planted in the emergent aquatic plant layer, and classified varieties or local dominant species are adopted: the purifying unit mainly aims at the following points: 1. the effluent of the aeration tank is effectively filtered, so that the concentration of suspended matters is further reduced; 2. the wetland filler and the plant root system are utilized to form a biological membrane, and an anaerobic environment is formed at the bottom of the filler to further degrade nitrogen, phosphorus, BOD and COD in the culture tail water.
The area of the biological purification tank designed by the project is 7200m2And after dredging in the pond, planting submerged plants: the method is characterized in that the method comprises the following steps of planting emergent aquatic plants on peripheral slopes of tape grass, hydrilla verticillata, elodea nutans, boehmeria amabilis, goldfish algae, potamogeton sinense, and the like, wherein the planting width is 1.0m, and the plant types are as follows: after the yellow iris, the mullet, the calamus and the like pass through the ecological ditch-aeration tank-artificial wetland system, pollutants in the water body are effectively degraded. The biological purification pond is used for deeply treating a water body and further improving the water quality of the water body, the ecological purification pond designed at this time is also a water landscape unit, the water depth is 1.2 m, a plurality of submerged plants and a small number of floating-leaf plants are planted in a matched mode, a good landscape effect is achieved while the water body is purified, and under the multiple synergistic effects of physics, chemistry and biology, such as aquatic plants, microorganisms and the like, the water body pollutants are deeply treated and efficiently removed.
Two submersible pumps are arranged between the ecological ditch and the aeration tank, and one is used and the other is standby (500 m)3And h), pumping water in the ecological ditch into the inner end of the aeration tank by the submersible pump, wherein a water distribution channel and a water collection channel are respectively arranged on two sides of the artificial wetland, water in the aeration tank enters the artificial wetland through the water distribution channel, and water in the artificial wetland enters the ecological restoration tank through the water collection channel.
As shown in fig. 3, the working flow of the fishpond tail water treatment system designed by the embodiment is as follows:
s1, tail water in a fishpond is discharged into an ecological ditch, submerged plants in the ditch slow down the flow velocity of the tail water, and the tail water is subjected to filtration, precipitation and preliminary degradation effects of organic matters, nitrogen and phosphorus;
s2, discharging tail water treated in the ecological ditch into an aeration tank through a submersible pump, wherein the aeration tank is used for treating sewage by an activated sludge method, a certain sewage retention time is provided in the tank, the oxygen amount required by aerobic microorganisms and the mixing condition of full contact between the sewage and the activated sludge are met, and organic pollutants are degraded;
s3, after the sewage is treated by the aeration tank, the sewage is uniformly distributed to the artificial wetland through a water distribution channel, and pollutants and nutrients in the sewage can be absorbed, converted and decomposed by plants and microorganisms in the system;
and S4, enabling the sewage in the artificial wetland to enter a bioremediation tank through a water collecting channel, further evolving the sewage through submerged plants in the bioremediation tank, and finally discharging tail water to a south channel after reaching the standard.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (12)
1. The utility model provides a pond tail water processing system which characterized in that: the treatment system comprises an ecological ditch, an aeration tank, an ecological floating island, an artificial wetland and an ecological restoration tank, wherein the ecological ditch is connected with a water outlet of a fish pond, the aeration tank is communicated with the ecological ditch, the ecological floating island is arranged at the inner end of the aeration tank, the artificial wetland is communicated with the aeration tank, and the ecological restoration tank is communicated with the artificial wetland.
2. The fishpond tail water treatment system of claim 1, wherein: the ecological ditch is composed of water, soil and organisms, and submerged plants are planted at the bottom end of the ecological ditch.
3. The fishpond tail water treatment system of claim 1, wherein: the aeration tank is internally provided with a surface oxygen aeration machine and corollary equipment, the bottom of the aeration tank is hardened, and the bottom of the aeration tank is provided with a set of sewage discharge system.
4. The fishpond tail water treatment system of claim 1, wherein: the ecological floating island is manufactured and produced by adopting bamboo-wood floating islands, PE floating plates, polystyrene foam plates and the like.
5. The fishpond tail water treatment system of claim 4, wherein: emergent aquatic plants or floating plants are planted on the ecological floating island.
6. The fishpond tail water treatment system of claim 1, wherein: the artificial wetland comprises a horizontal subsurface flow wetland, a vertical subsurface flow wetland, a biological pond and the like and a composite composition process thereof, and the artificial wetland comprises a water-resisting layer (anti-seepage film), artificial wetland fillers and artificial wetland plants.
7. The fishpond tail water treatment system of claim 6, wherein: the artificial wetland filler is limestone with the particle size of 1-5cm and the filler depth of 1.0-1.5m, and different filler particle sizes and filler depths are selected in different process sections.
8. The fishpond tail water treatment system of claim 6, wherein: the constructed wetland system can form a set of complete sewage treatment system, and can purify and treat pollutants in tail water by utilizing filtration of fillers, absorption of root systems, decomposition of microbial films and the like.
9. The fishpond tail water treatment system of claim 6, wherein: the constructed wetland is constructed and constructed by adopting reinforced concrete, glass fiber reinforced plastics, brick masonry and the like.
10. The fishpond tail water treatment system of claim 1, wherein: two submersible pumps are arranged between the ecological ditch and the aeration tank, one is used and the other is standby, and the submersible pumps pump water in the ecological ditch into the inner end of the aeration tank.
11. The fishpond tail water treatment system of claim 1, wherein: and the two sides of the artificial wetland are respectively provided with a water distribution channel and a water collection channel, water in the aeration tank enters the artificial wetland through the water distribution channel, and water in the artificial wetland enters the ecological restoration tank through the water collection channel.
12. The fishpond tail water treatment system of claim 1, wherein: submerged plants are planted at the bottom inside the ecological restoration tank.
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|---|---|---|---|
| CN202110357369.8A CN113072188A (en) | 2021-04-01 | 2021-04-01 | Pond tail water treatment system |
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| CN202110357369.8A CN113072188A (en) | 2021-04-01 | 2021-04-01 | Pond tail water treatment system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113979594A (en) * | 2021-10-29 | 2022-01-28 | 中国科学院新疆生态与地理研究所 | Method for strengthening treatment of salt-containing wastewater by using ditch type oxidation pond |
| CN114291983A (en) * | 2022-03-09 | 2022-04-08 | 湖南易净环保科技有限公司 | Agricultural non-point source pollution treatment and resource utilization system |
| CN114642188A (en) * | 2022-02-24 | 2022-06-21 | 广东省农业科学院动物科学研究所 | Method for comprehensively treating tail water of concentrated continuous pond culture |
| CN114920361A (en) * | 2022-05-26 | 2022-08-19 | 江西省林业科学院 | Design method of water quality purification type small micro-wetland group |
| CN115557626A (en) * | 2022-08-25 | 2023-01-03 | 华南农业大学 | Ectopic ecological management method for tail water of aquaculture pond |
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| CN101120661A (en) * | 2007-09-13 | 2008-02-13 | 中国科学院水生生物研究所 | Ecological fishery cultivating device and method based on composite vertical current artificial wet land |
| CN108178447A (en) * | 2018-01-11 | 2018-06-19 | 浙江省淡水水产研究所 | A kind of shrimp culture tail water treatment system |
| WO2018129896A1 (en) * | 2017-01-11 | 2018-07-19 | 深圳市碧园环保技术有限公司 | Artificial wetland system for advanced treatment of tail water from sewage treatment plant |
| CN110590061A (en) * | 2019-09-10 | 2019-12-20 | 浙江省淡水水产研究所 | Be suitable for ecological purification circulation system of inland freshwater aquaculture pond tail water |
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| CN101120661A (en) * | 2007-09-13 | 2008-02-13 | 中国科学院水生生物研究所 | Ecological fishery cultivating device and method based on composite vertical current artificial wet land |
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| CN113979594A (en) * | 2021-10-29 | 2022-01-28 | 中国科学院新疆生态与地理研究所 | Method for strengthening treatment of salt-containing wastewater by using ditch type oxidation pond |
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| CN114920361A (en) * | 2022-05-26 | 2022-08-19 | 江西省林业科学院 | Design method of water quality purification type small micro-wetland group |
| CN115557626A (en) * | 2022-08-25 | 2023-01-03 | 华南农业大学 | Ectopic ecological management method for tail water of aquaculture pond |
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