CN217446281U - Biofilm combination system for accurately regulating and controlling pond water quality - Google Patents
Biofilm combination system for accurately regulating and controlling pond water quality Download PDFInfo
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- CN217446281U CN217446281U CN202121316069.7U CN202121316069U CN217446281U CN 217446281 U CN217446281 U CN 217446281U CN 202121316069 U CN202121316069 U CN 202121316069U CN 217446281 U CN217446281 U CN 217446281U
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Abstract
The utility model provides a biomembrane combined system for accurately regulating and controlling pond water quality, which comprises a biomembrane water purification grid, a phosphorus removal device and a carbon source supplementing device, wherein a plurality of groups of biomembrane water purification grids are vertically suspended and distributed in the pond water body; the dephosphorization device comprises an electrode combination, a direct-current switch power supply, a buoyancy device and a net cage, wherein the upper end of the electrode combination is erected on the buoyancy device and is positioned in the net cage; in the electrode combination, the anode is iron, and the cathode is iron or copper; the carbon source supplementing device is arranged above the phosphorus removal device and comprises a feed liquid barrel, a micropump, a liquid conveying pipe and a perforated diffusion pipe, one end of the liquid conveying pipe is communicated with the feed liquid barrel through the micropump, the other end of the liquid conveying pipe is communicated with the perforated diffusion pipe, and the micropump and the electrode combination are connected with a direct-current switching power supply. The utility model has the advantages of reducing the nitrogen and phosphorus mass concentration of the aquaculture water, having good water quality improvement effect, low energy consumption cost, no secondary pollution, simple and convenient management, and the like.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a biofilm combined system of accurate regulation and control of pond quality of water.
[ background of the invention ]
China is a big aquaculture country, and the aquaculture yield accounts for about 68% of the world aquaculture yield, wherein the pond aquaculture yield accounts for about 45%. Due to the feeding of a large amount of feed, the nitrogen and phosphorus concentration in the water body is rapidly increased and the water quality is deteriorated in the middle and later stages of pond culture, so that the survival and growth of cultured animals are influenced, the disease incidence is increased, and the quality and quality safety of aquatic products are influenced; in addition, the tail water of the pond culture is basically directly discharged without treatment, thereby causing eutrophication pollution to different degrees of the surrounding water area environment and increasing the environmental protection pressure of the water quality treatment of the surrounding water area. Therefore, in order to promote healthy ecological breeding of cultured animals, reduce self-pollution of breeding and eutrophication pollution to surrounding water area environments and protect the water area ecological environment, it is necessary to take effective measures to continuously reduce the mass concentration of nitrogen and phosphorus in the pond water body and regulate and control the improved water quality in the breeding process.
The current pond culture water quality regulation and control technology mainly adopts a microecological preparation, a biological floating bed, a biological membrane technology, an application chemical agent and the like, but has larger use limitations, such as the problems of insufficient regulation and control effect commonly existing in the microecological preparation, the biological floating bed, the biological membrane technology and the like, and even the effect is often uncertain and even ineffective when the microecological preparation, the biological floating bed, the biological membrane technology and the like are influenced by factors such as climate and the like; the chemical agents are used, so that the use cost is high, the chemical agents cannot be used continuously, negative effects on other factors of water quality can be generated, even the survival and growth of cultured animals are endangered, and the like.
[ Utility model ] content
The to-be-solved technical problem of the utility model lies in providing a biomembrane combined system of accurate regulation and control of pond quality of water, and it can reach and last, stable, efficient denitrogenation falls phosphorus, realizes ecological regulation and control and improvement quality of water, has that system operation is simple and convenient, quality of water improvement effect is accurate stable more, receive advantage such as climate influence little, normal position quality of water improvement, with low costs, be favorable to breeding animal growth, environmental protection safety and no secondary pollution.
The utility model discloses a realize like this:
a biomembrane combined system for accurately regulating and controlling water quality of a pond comprises biomembrane water purification barriers, a phosphorus removal device and a carbon source supplementing device, wherein a plurality of groups of biomembrane water purification barriers are vertically suspended and distributed in a water body of the pond;
the dephosphorization device comprises an electrode combination, a direct-current switch power supply, a buoyancy device and a net cage, wherein the electrode combination is connected with the direct-current switch power supply, the electrode combination is positioned in the water body of the pond, and the upper end of the electrode combination is erected on the buoyancy device and floats on the water body of the pond through the buoyancy device; the electrode assembly is positioned in the net cage; in the electrode combination, the anode is iron, and the cathode is iron or copper;
the carbon source supplementing device is arranged above the phosphorus removal device and comprises a feed liquid barrel, a micropump, a liquid conveying pipe and a perforated diffusion pipe, one end of the liquid conveying pipe is communicated with the feed liquid barrel through the micropump, the other end of the liquid conveying pipe is communicated with the perforated diffusion pipe, and the micropump is connected with a direct-current switch power supply.
Furthermore, each group of the biomembrane water purification grids has the length of 20-40m and the height of 0.7-1.4 m, and the distance between every two adjacent biomembrane water purification grids is 1-5m.
Furthermore, 3-9 groups of the biomembrane water purification grids are arranged per mu of the pond water area.
Further, an upper steel rope positioned at the upper end of the biomembrane water purification grid is arranged 10-30cm below the water surface of the pond.
Furthermore, the phosphorus removal device is arranged in the middle of the plurality of groups of biomembrane water purification grids and is connected to the adjacent biomembrane water purification grids through a rope.
Further, the electrode assembly comprises a plurality of electrodes and an electrode support, each electrode is suspended below the electrode support, and the distance between every two adjacent electrodes is 2-10 cm.
Furthermore, the net cage is a plastic net cage.
Furthermore, the carbon source supplementing device further comprises a stirrer, wherein the stirrer is arranged in the feed liquid barrel and is connected with the direct-current switching power supply.
Furthermore, the biomembrane combination system is matched with an aerator which is arranged in the water body of the pond.
Further, the direct current switching power supply is arranged above the buoyancy device.
The utility model has the advantages of:
1. the utility model discloses a normal position sets up the biomembrane combined system in the pond aquaculture water, sets up in the aquaculture pond through the biomembrane water purification bars of system, makes the huge biomembrane (microbial community) of area of quick formation on the three-dimensional elastic filler of biomembrane water purification bars, generally can form the biomembrane area more than 10 mu area per mu of surface of water, forms the dominant flora easily, stably exerts the effect; the biomembrane comprises a great amount of bacteria such as nitrobacteria, denitrifying bacteria and the like, some algae, protozoa and the like, and the dissolved oxygen (provided by an aerator) in the water body of the pond is utilized to convert and degrade ammonia nitrogen and nitrite which have high toxicity to the cultured animals into nitrate which is nontoxic to the cultured animals through nitrification, and then the nitrate is converted into nitrogen through denitrification and overflows out of the water surface through aeration of the aerator to complete denitrification of the water body of the pond and reduce the concentration of organic matters in the water to a certain degree. Through the carbon source supplementing device regularly adds the supplementary carbon sources such as glucose, brown sugar to the pond water, promotes the denitrification to go on, promotes the denitrogenation process of pond water, reduces nitrogen concentration.
2. Iron cations are continuously generated by an iron electrode (anode) combined by electrodes in the phosphorus removal device, and the iron cations and phosphates in the aquaculture water body generate a precipitation reaction, iron cation hydrate and polymers thereof generate flocculation precipitation effect on phosphorus and related particulate matters, and the like, so that particles or flocculates such as iron phosphate and the like are separated from the surface of the electrodes and are settled at the bottom, and the phosphorus concentration in the pond water body is continuously, stably and efficiently reduced; the phosphorus removal device and the biomembrane water purification grid are matched with each other to sustainably reduce the concentration of nitrogen and phosphorus in the water body of the pond, thereby stably improving the culture water quality.
3. The utility model can prevent the cultured animals (such as fish and shrimp) in the pond from entering by arranging the plastic net cage outside the electrode combination, and ensure that the direct current electric field does not harm the cultured animals; the buoyancy device provides sufficient buoyancy to ensure that the system can submerge and float in the water body, thereby being beneficial to the drifting of the system on the water surface, ensuring the safety of the direct current switch power supply when leaving the water surface and using electricity, and being convenient for the inspection and maintenance of the system.
To sum up, the utility model has the advantages of simple and convenient system operation, more accurate stability of quality of water regulation and control and improvement effect, little, the normal position quality of water improvement is with low costs, be favorable to breeding animal growth, environmental protection safety and no secondary pollution.
[ description of the drawings ]
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is a top view of the biofilm combination system for accurately regulating and controlling pond water quality.
Fig. 2 is a side view of the biofilm combination system for accurately regulating and controlling pond water quality.
[ detailed description ] embodiments
The technical solutions of the present invention will be described below clearly and completely with reference to the accompanying drawings and the detailed description. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Referring to fig. 1 to 2, the biofilm combination system for precisely regulating and controlling pond water quality of the present invention includes a biofilm water purification grid 1, a phosphorus removal device 2 and a carbon source supplement device 3, wherein a plurality of biofilm water purification grids 1 are vertically suspended and distributed in a pond water body;
the phosphorus removal device 2 comprises an electrode combination 21, a direct current switch power supply 22, a buoyancy device 23 and a net cage 24, wherein the electrode combination 21 is connected with the direct current switch power supply 22, the electrode combination 21 is positioned in the water body of the pond, the upper end of the electrode combination 21 is erected on the buoyancy device 23 and floats on the water body of the pond through the buoyancy device 23; the electrode assembly 21 is positioned in the net cage 24; the anode of the electrode assembly 21 is iron, and the cathode is iron or copper;
the carbon source supplementing device 3 is arranged above the phosphorus removal device 2, the carbon source supplementing device 3 comprises a feed liquid barrel 31, a micro pump 32, a liquid conveying pipe 33 and a perforated diffusion pipe 34, one end of the liquid conveying pipe 33 is communicated with the feed liquid barrel 31 through the micro pump 32, the other end of the liquid conveying pipe 33 is communicated with the perforated diffusion pipe 34, and the micro pump 32 is connected with the direct-current switch power supply 22.
In the implementation, a preferred embodiment is as follows: the length of each group of the biomembrane water purification grids 1 is 20-40m, the height of each group of the biomembrane water purification grids is 0.7-1.4 m, and the distance between every two adjacent biomembrane water purification grids 1 is 1-5m.
In the implementation, a preferred embodiment is as follows: the biomembrane water purification grids 1 are arranged in 3-9 groups per mu of pond water area.
In the implementation, a preferred embodiment is as follows: an upper steel rope 11 positioned at the upper end of the biomembrane water purification grid 1 is arranged 10-30cm below the water surface of the pond.
In the implementation, a preferred embodiment is as follows: the phosphorus removal device 2 is arranged in the middle of a plurality of groups of biomembrane water purification grids 1, and the phosphorus removal device 2 is connected to the adjacent biomembrane water purification grids 1 through a rope 4.
In the implementation, a preferred embodiment is as follows: the electrode assembly 21 comprises a plurality of electrodes 211 and an electrode support 212, wherein each electrode 211 is suspended below the electrode support 212, and the distance between every two adjacent electrodes 212 is 2-10 cm.
In the implementation, the preferred embodiment is as follows: the net cage 24 is a plastic net cage.
In the implementation, a preferred embodiment is as follows: the carbon source supplementing device 3 further comprises a stirrer 35, the stirrer 35 is arranged in the material liquid barrel 31, and the stirrer 35 is connected with the direct current switch power supply 22.
In the implementation, a preferred embodiment is as follows: the biofilm combination system is also matched with an aerator, and the aerator is arranged in the pond water body.
In the implementation, a preferred embodiment is as follows: the dc switching power supply 22 is disposed above the buoyancy device 23.
The working principle of the utility model is as follows:
(1) after the biomembrane water purification grid 1 is arranged on the water body of the pond, a biomembrane (microbial community) with a huge area is rapidly formed on the three-dimensional elastic filler, the biomembrane comprises a huge amount of bacteria such as nitrobacteria and denitrifying bacteria, some algae, protozoa and the like, dissolved oxygen (provided by an aerator) in the water body of the pond is utilized, ammonia nitrogen and nitrite which have large toxicity to cultured animals are converted and degraded into nitrate which is nontoxic to the cultured animals mainly through nitrification, then the nitrate is converted into nitrogen through denitrification, and the nitrogen overflows the water surface through aeration of the aerator to complete denitrification of the water body of the pond, and simultaneously the concentration of organic matters in the water is reduced to a certain degree.
(2) The carbon source supplementing device 3 is used for periodically adding carbon sources such as glucose, brown sugar and the like to the pond water body, so that the denitrification is promoted, the denitrification process of the pond water body is promoted, and the nitrogen concentration is reduced; the carbon source supplementing device 3 is provided with a perforated diffusion pipe 34, and carbon sources are pumped into the perforated diffusion pipe 34 through a liquid conveying pipe 33 and a micro pump 32 and then diffused into the water body of the pond so as to be more uniformly diffused into the water body of the pond.
(3) By direct currentThe switching power supply 22 provides a certain DC power, and under the action of the DC electric field of the electrode assembly 21, the iron (anode) generates a large amount of iron cations and a large amount of Fe 2+ And Fe 3+ Carrying out precipitation reaction with phosphate in the culture water body to form granular and non-soluble substances (such as iron phosphate and the like) to be deposited in the net cage 24; meanwhile, iron cations are subjected to a series of hydrolytic polymerization reactions, and Fe 2+ And Fe 3+ And their hydrates such as ferric hydroxide have strong flocculation and precipitation effects on phosphorus, and can also generate polymer with adsorption coagulation effect, such as part of Fe 3+ Produced by hydrolysis, e.g. [ Fe ] 2 (OH) 2 ] 4+ 、[Fe 3 (OH) 4 ] 5+ 、[Fe 5 (OH) 9 ] 6+ The polynuclear hydroxyl complex can play a role of a flocculating agent, can be subjected to precipitation with suspended substances (containing suspended phosphorus, including biological phosphorus and insoluble phosphate particles), related granular substances, electrolytes and the like in the culture water body, and is settled at the bottom, so that the phosphorus concentration in the water body is reduced.
(4) The utility model discloses a set up plastic net cage in electrode combination 21 outside, can the separation pond cultured animal (like fish shrimp etc.) get into, ensure that direct current electric field does not produce the injury to cultured animal.
(5) Buoyancy device 23's setting provides sufficient buoyancy in order to ensure the utility model discloses the system can float in the water submerged, helps its drift at the surface of water, also ensures that direct current switch power leaves the surface of water and power consumption safety, also is convenient for maintain the inspection of system.
The present invention will be further described with reference to the following specific examples.
The biological membrane combination system is applied to an eel pond, the high-density precision culture of the eel pond is subjected to contrast treatment of precise regulation and control of water quality, and the pond water quality contrast result data during culture is as follows:
remarking: the control pond indicates not to install and use the utility model discloses the breed aquatics pond of system, the processing pond indicates to have the installation to use the utility model discloses the breed aquatics pond of system.
In conclusion, the average removal rate of the ammonia nitrogen in the pond culture water body treated by the device is 47.0 percent (the removal rate range is 38.7 to 53.5 percent); the average removal rate of nitrite nitrogen is 59.5% (the removal rate range is 53.4% -68.6%); the average removal rate of nitrate nitrogen is 55.2% (the removal rate range is 50.9% -61.0%); the average removal rate of total nitrogen is 52.3% (the removal rate ranges from 43.3% to 59.0%); the average removal rate of inorganic phosphorus is 75.0 percent (the removal rate ranges from 72.8 percent to 80.4 percent); the average removal of total phosphorus was 59.7% (removal range 54.5% -65.0%).
In a word, the utility model can achieve continuous, stable and efficient denitrification and phosphorus reduction by arranging the biofilm combination system in situ in the pond culture water body, accurately regulate and control the improved water quality and promote the green development of culture; the utility model has the advantages of simple and convenient system operation, more accurate and stable water quality improvement effect, little influence by weather, in-situ water quality improvement, low cost, being favorable for the growth of cultured animals, environmental protection, safety, no secondary pollution and the like.
Although specific embodiments of the invention have been described herein, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, as equivalent modifications and variations within the spirit of the invention are intended to be covered by the appended claims.
Claims (10)
1. The utility model provides a biomembrane combined system of accurate regulation and control of pond quality of water which characterized in that: the biomembrane combined system comprises biomembrane water purification grids, a phosphorus removal device and a carbon source supplement device, and a plurality of groups of biomembrane water purification grids are vertically suspended and distributed in a pond water body;
the dephosphorization device comprises an electrode combination, a direct-current switch power supply, a buoyancy device and a net cage, wherein the electrode combination is connected with the direct-current switch power supply, the electrode combination is positioned in the water body of the pond, and the upper end of the electrode combination is erected on the buoyancy device and floats on the water body of the pond through the buoyancy device; the electrode assembly is positioned in the net cage; in the electrode combination, the anode is iron, and the cathode is iron or copper;
the carbon source supplementing device is arranged above the phosphorus removal device and comprises a feed liquid barrel, a micropump, a liquid conveying pipe and a perforated diffusion pipe, one end of the liquid conveying pipe is communicated with the feed liquid barrel through the micropump, the other end of the liquid conveying pipe is communicated with the perforated diffusion pipe, and the micropump is connected with a direct-current switching power supply.
2. The system of claim 1, which is characterized in that: the length of each group of biomembrane water purification grids is 20-40m, the height of each group of biomembrane water purification grids is 0.7-1.4 m, and the distance between every two adjacent biomembrane water purification grids is 1-5m.
3. The system of claim 1 or 2, which is characterized in that: the biomembrane water purification grids are arranged in 3-9 groups per mu of pond water area.
4. The system of any one of claims 1 to 2, which is a biofilm combination system for precisely controlling pond water quality, and is characterized in that: the upper steel rope positioned at the upper end of the biomembrane water purification grid is arranged 10-30cm below the water surface of the pond.
5. The system of claim 1, which is characterized in that: the dephosphorization device is arranged in the middle of the biomembrane water purification grids, and is connected to the adjacent biomembrane water purification grids through a rope.
6. The system of claim 1, which is characterized in that: the electrode assembly comprises a plurality of electrodes and electrode supports, each electrode is suspended below the electrode supports, and the distance between every two adjacent electrodes is 2-10 cm.
7. The system of claim 1, which is characterized in that: the net cage is a plastic net cage.
8. The system of claim 1, which is characterized in that: the carbon source supplementing device further comprises a stirrer, wherein the stirrer is arranged in the feed liquid barrel and is connected with the direct-current switching power supply.
9. The system of claim 1, which is characterized in that: the biofilm combination system is also matched with an aerator, and the aerator is arranged in the pond water body.
10. The system of claim 1, which is characterized in that: the direct current switch power supply is arranged above the buoyancy device.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113331129A (en) * | 2021-06-11 | 2021-09-03 | 集美大学 | Biofilm combination system for accurately regulating and controlling pond water quality |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113331129A (en) * | 2021-06-11 | 2021-09-03 | 集美大学 | Biofilm combination system for accurately regulating and controlling pond water quality |
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