CN110835206A - Silurus meridionalis elevated pond culture tail water treatment system - Google Patents
Silurus meridionalis elevated pond culture tail water treatment system Download PDFInfo
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- CN110835206A CN110835206A CN201911174541.5A CN201911174541A CN110835206A CN 110835206 A CN110835206 A CN 110835206A CN 201911174541 A CN201911174541 A CN 201911174541A CN 110835206 A CN110835206 A CN 110835206A
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- 238000005273 aeration Methods 0.000 claims abstract description 21
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- 239000007788 liquid Substances 0.000 claims abstract description 15
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
-
- 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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1205—Particular type of activated sludge processes
-
- 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
- C02F7/00—Aeration of stretches of water
Abstract
The invention discloses a catfish elevated pond culture tail water treatment system, which comprises a solid-liquid separation device, an S-shaped ecological ditch for primarily purifying tail water, an aeration nitrification tank for aerating and oxygenating the tail water and having a nitrification function, an ecological purification tank for degrading pollutants in water by using a fish-shellfish-algae composite system, and a water storage tank for storing culture water, wherein the ecological purification tank is sequentially connected with the solid-liquid separation device; the solid-liquid separation device is connected with the water outlet of the elevated tank, and the water storage tank is connected with the water inlet of the elevated tank. The system can effectively remove solid wastes in the tail water, and make the solid wastes into organic fertilizers, thereby changing waste into valuable, reducing the content of ammonia nitrogen, nitrite and sulfide in the water and the content of soluble phosphorus in the water, and being beneficial to construction of sightseeing fishery.
Description
Technical Field
The invention relates to a catfish high-level pond culture tail water treatment system, and belongs to the technical field of water treatment.
Background
The silurus meridionalis is an important economic fish in China, and in the silurus meridionalis culture process, with the development of culture technology, a plurality of efficient culture modes are developed, the elevated pond culture mode is one of the efficient culture modes, and the elevated pond culture mode is a new high-density intensive culture mode which is developed in recent years, and compared with the traditional pond culture, the silurus meridionalis culture method has the characteristics of high culture density, few diseases, few medicines, high survival rate and the like. However, due to the fact that the culture density is high, the amount of bait is large, fish residual bait and excrement are produced too much, water pollution is serious, and the culture tail water is discharged into a river channel without reasonable treatment, so that water environment deterioration is aggravated, and the shortage of culture water resources is gradually caused. Therefore, the development of an ecological, environment-friendly, green and efficient clarias fuscus elevated pond tail water treatment technology has important significance for protecting the ecological environment and promoting the healthy and sustainable development of the clarias fuscus industry. The Chinese utility model patent with application number 201822277582.4 discloses a circulating water aquaculture system for elevated ponds or soil ponds, which realizes the recycling of tail water by processing the aquaculture tail water through multiple steps of cyclone separation, solid-liquid separation, foam separation, double cyclone precipitation filtration, biological mechanical filtration, ultraviolet disinfection and the like; the Chinese patent with application number 201210258211.6 discloses an ecological seawater rare fish industrial circulating water culture system, which mainly comprises a culture pond, a primary filter tower, a protein separator, a primary biological filter tower, a secondary biological filter tower, a tertiary biological filter tower, an algae treatment pond, a source water filter pond, an ultraviolet sterilizer, a temperature regulation pond, an arc screen, a primary sedimentation pond and a secondary sedimentation pond. Although the two tail water treatment methods can realize the recycling of the culture tail water, the two tail water treatment methods have the problems of complicated treatment steps (multi-stage treatment) and high construction cost (a plurality of advanced tail water treatment devices need to be purchased), and limit the popularization and application of the tail water treatment methods in production.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention aims to provide the clarias fuscus elevated pond culture tail water treatment system which is low in cost and simple to operate.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a silurus meridionalis elevated tank culture tail water treatment system comprises a solid-liquid separation device, an ecological ditch for primarily purifying tail water, an aeration nitrification tank for aerating and oxygenating the tail water and having a nitrification function, an ecological purification tank for degrading pollutants in water by using a fish-shellfish-algae composite system, and a water storage tank for storing culture water, which are sequentially connected;
the solid-liquid separation device is connected with the water outlet of the elevated tank, and the water storage tank is connected with the water inlet of the elevated tank.
The solid-liquid separation device is a roller micro-filter.
The section of the ecological ditch is trapezoidal, and the ecological ditch is S-shaped; herbaceous plants are planted on two sides of the ecological ditch, a corridor is built above the ecological ditch, and a tubular ultraviolet disinfection lamp is installed below the corridor.
Ecological slopes are built on the walls of the aeration nitrification tank and the ecological purification tank, the ecological slopes are formed by laying perforated bricks, and herbaceous plants are planted on the slope walls;
the periphery of the bottom of the aeration nitrification tank is provided with a nano aeration disc, and the periphery of the tank is provided with a waterwheel type aerator; submerged plants are planted at the bottom of the aeration nitrification tank in a dispersed manner, and the area of the submerged plants is not more than 40% of that of the aeration nitrification tank;
the ecological purification pond in be provided with ecological bed that floats, it has floating leaf plant to plant on the bed that floats, floating leaf plant area is no longer than 60% of ecological purification pond, emergent aquatic plant is planted to the pond limit, the bottom of the pool plants submerged plant, the area is no longer than 40% of ecological purification pond area, throw in the pond simultaneously and have filter feeding nature biology.
The invention has the following beneficial effects:
1) in the invention, solid wastes such as feed residual baits, fish feces and the like obtained after tail water passes through the solid-liquid separation device can be collected to be prepared into organic fertilizers, so that waste is changed into valuable.
2) The S-shaped ecological ditch has certain ecological function and water treatment function, and ammonia nitrogen, nitrite, sulfur-containing compounds and other impurities contained in tail water after the tail water passes through the ecological ditch can be preliminarily purified; wooden corridors are built on the S-shaped ecological ditches, tubular ultraviolet disinfection lamps are installed below the corridors, tail water can be disinfected, compared with the existing common ozone generators, ultraviolet disinfectors and the like, the cost is obviously reduced, in addition, when the ultraviolet lamps are turned on at night, light is reflected in water, people walk on the corridors, a beautiful landscape is formed, and the sightseeing fishery is favorably created.
3) Nitrifying bacteria are a generic term for bacteria having a biological nitrogen fixation effect, and can convert ammonia nitrogen or nitrite in tail water into nitrate and then remove the nitrate. The propagation of nitrifying bacteria needs to be attached to the filter material with micropores to propagate. The slope wall of the nitrification aeration tank is paved by porous bricks, so that a good inhabitation environment is created for nitrifying bacteria, the propagation of the nitrifying bacteria is facilitated, and the water body pollutants are reduced through the action of microorganisms. The bottom and the center of the pool are provided with oxygenation devices, so that enough oxygen is supplied to the water body, the decomposition of organic matters in water is facilitated, and in addition, the waterwheel type aerator promotes the flow of the water body and further enhances the self-purification function of the water body.
4) Submerged plants, emergent plants and floating plants are planted in the ecological purification pond, the plants can be used as good nutrition buffers, N, P nutrient substances in tail water can be converted into nutrient substances required by the plants, the N, P content is effectively reduced, the mollusks and filter-feeding fishes can be used as a biofilter, particle organic substances such as plankton and the like in the tail water are reduced through filter-feeding effect, the transparency of a water body is improved, the mollusks can be harvested to obtain certain economic income, in addition, certain algae can be ingested as food by the filter-feeding fishes, the algae spreading is prevented, and the effect of controlling the algae by herding and fishing is achieved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic top view of the ecological trench according to the present invention.
FIG. 3 is a cross-sectional view of an ecological trench according to the present invention.
Detailed Description
The specific technical scheme of the invention is described by combining the embodiment.
As shown in fig. 1, a catfish high pond culture tail water treatment system for treating tail water of a high pond comprises:
a solid-liquid separation device for separating solid wastes such as feed residue, feces and the like in tail water;
an ecological ditch for primarily purifying tail water is shown in fig. 2 and fig. 3, the section of the ecological ditch is trapezoidal, the length of the upper bottom is 1.2m-1.8m, the length of the lower bottom is 0.5m-0.8m, and the depth is 1.2m-1.5 m;
the area of the trapezoidal aeration nitrification tank for aerating and oxygenating the tail water and having the nitrification function is 800m2-1300 m2The slope ratio is 1:1-1:1.5, and the depth is 1.5m-2.5 m;
rectangular ecological purification pool for degrading pollutants in water by using fish-shellfish-algae composite system, and the area of rectangular ecological purification pool is 1000m2-1500 m2The slope ratio is 1:1-1:1.5, and the depth is 1.0m-2.0 m;
square or rectangular water storage tank for storing culture water, with pool opening area of 1200-1800m2And the depth is 2m-3 m.
The solid-liquid separation device is a roller micro-filter or other solid-liquid separation equipment and is purchased from the market.
The ecological ditch is S-shaped, the water inlet and outlet 1 is respectively connected with the solid-liquid separation device and the aeration nitrification tank 4, herbaceous plants are planted on two sides of the ditch, a wooden corridor 2 is built on the ecological ditch, the height of the corridor 2 from the ditch is 15cm-30cm, and a tubular ultraviolet disinfection lamp 3 is installed below the corridor 2.
The walls of the aeration nitrification tank and the ecological purification tank are both built with ecological slopes, the slope ratio is 1:1-1:1.5, the ecological slopes are formed by paving porous bricks, one or more of the herbaceous plants such as bermuda grass, tall fescue, ryegrass, Chinese holly leaf, white clover, red clover and the like are planted on the slope walls, and roots, branches and gaps of the porous bricks of the herbaceous plants can be used as nitrobacteria attachment carriers for culturing nitrobacteria.
The periphery of the bottom of the aeration nitrification tank is provided with the nanometer aeration plates, and the periphery of the aeration nitrification tank is provided with 4-6 waterwheel type oxygen increasing machines, so that the water body can be promoted to flow while the oxygen is increased, and the self-purification function of the water body is enhanced. One or more submerged plants such as eel grass, goldfish algae, foxtail algae, hydrilla verticillata, elodea nutans and small sagina are also dispersedly planted at the bottom of the pond, and the area of the submerged plants is not more than 40 percent of the area of the pond.
An ecological floating bed is arranged in the ecological purifying pond, one or more of the floating leaf plants such as the royal lotus, the water lily, the Nuphar pumilum, the gorgon fruit, the potherb mustard, the water chestnut, the water lily, the Japanese pagoda tree and the like are planted on the floating bed, the area of the floating leaf plant is not more than 60 percent of the area of the pond, one or more of the emergent water plants such as the reed, the allium fistulosum, the edible tulip, the rhizoma alismatis, the loosestrife, the cattail, the young pennisetum and the like are planted at the side of the pond, submerged plants which are the same as the aeration nitrifying pond are planted at the bottom of the pond, the area is not more than 40 percent of the area of the pond, and meanwhile, filter feeding organisms such as the silver carp, the bighead carp, the shellfish.
Claims (4)
1. A silurus meridionalis elevated tank culture tail water treatment system is characterized by comprising a solid-liquid separation device, an S-shaped ecological ditch for primarily purifying tail water, an aeration nitrification tank for aerating and oxygenating the tail water and having a nitrification function, an ecological purification tank for degrading pollutants in water by using a fish-shellfish-algae composite system, and a water storage tank for storing culture water, which are sequentially connected;
the solid-liquid separation device is connected with the water outlet of the elevated tank, and the water storage tank is connected with the water inlet of the elevated tank.
2. The catfish high pond culture tail water treatment system of claim 1, wherein the solid-liquid separation device is a drum micro-filter.
3. The catfish high pond culture tail water treatment system of claim 1, wherein the ecological channel is trapezoidal in cross section and is "S" -shaped; herbaceous plants are planted on two sides of the ecological ditch, a corridor is built above the ecological ditch, and a tubular ultraviolet disinfection lamp is installed below the corridor.
4. The catfish high pond culture tail water treatment system of claim 1, wherein ecological slopes are built on the walls of the aeration nitrification pond and the ecological purification pond, the ecological slopes are formed by laying perforated bricks, and herbaceous plants are planted on the slope walls;
the periphery of the bottom of the aeration nitrification tank is provided with a nano aeration disc, and the periphery of the tank is provided with a waterwheel type aerator; submerged plants are planted at the bottom of the aeration nitrification tank in a dispersed manner, and the area of the submerged plants is not more than 40% of that of the aeration nitrification tank;
the ecological purification pond in be provided with ecological bed that floats, it has floating leaf plant to plant on the bed that floats, floating leaf plant area is no longer than 60% of ecological purification pond, emergent aquatic plant is planted to the pond limit, the bottom of the pool plants submerged plant, the area is no longer than 40% of ecological purification pond area, throw in the pond simultaneously and have filter feeding nature biology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911174541.5A CN110835206A (en) | 2019-11-26 | 2019-11-26 | Silurus meridionalis elevated pond culture tail water treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911174541.5A CN110835206A (en) | 2019-11-26 | 2019-11-26 | Silurus meridionalis elevated pond culture tail water treatment system |
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| CN110835206A true CN110835206A (en) | 2020-02-25 |
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| CN201911174541.5A Pending CN110835206A (en) | 2019-11-26 | 2019-11-26 | Silurus meridionalis elevated pond culture tail water treatment system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112607868A (en) * | 2021-01-04 | 2021-04-06 | 铜仁职业技术学院 | Micro-slope flowing water culture tail water treatment system |
| CN114506971A (en) * | 2022-01-27 | 2022-05-17 | 乐亭县向光海水养殖场 | Aquaculture tail water treatment method based on energy recycling |
-
2019
- 2019-11-26 CN CN201911174541.5A patent/CN110835206A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112607868A (en) * | 2021-01-04 | 2021-04-06 | 铜仁职业技术学院 | Micro-slope flowing water culture tail water treatment system |
| CN114506971A (en) * | 2022-01-27 | 2022-05-17 | 乐亭县向光海水养殖场 | Aquaculture tail water treatment method based on energy recycling |
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