CN210261453U - Recirculating aquaculture and tail water treatment integrated water treatment system - Google Patents
Recirculating aquaculture and tail water treatment integrated water treatment system Download PDFInfo
- Publication number
- CN210261453U CN210261453U CN201920780544.2U CN201920780544U CN210261453U CN 210261453 U CN210261453 U CN 210261453U CN 201920780544 U CN201920780544 U CN 201920780544U CN 210261453 U CN210261453 U CN 210261453U
- Authority
- CN
- China
- Prior art keywords
- water
- ozone
- pool
- biofilter
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Physical Water Treatments (AREA)
Abstract
The utility model provides a recirculating water aquaculture and tail water treatment integration water processing system, including dirty pond of collection, physics filter equipment, electrode-suspension filler coupling biological filter processing unit, the ozone ultraviolet ray combination that connects gradually the pathogenic microorganism pond of going out, dirty pond of collection, physics filter equipment, electrode-suspension filler coupling biological filter processing unit, ozone ultraviolet ray combination pathogenic microorganism pond of going out all are connected with sludge concentration dewatering device, ozone ultraviolet ray combination pathogenic microorganism pond of going out still links to each other with breeding the pond. The utility model has the characteristics of high water treatment efficiency and capability of continuously maintaining the excellent water quality of the culture system, and the water circulation utilization rate can reach 95% -98%; the system not only can fully meet the healthy breeding requirements of breeding objects, but also has the function of tail water treatment, and can realize the standard-reaching discharge of the tail water.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a circulating water culture and tail water treatment integrated water treatment system.
[ background of the invention ]
The circulating water culture is developed rapidly in recent years, and the culture scale is enlarged day by day. The species of freshwater recirculating aquaculture mainly comprise eel, sturgeon, cod, tilapia, litopenaeus vannamei and the like, and the freshwater recirculating aquaculture has the advantages of water conservation, land conservation, high yield, high efficiency, high quality and safety of aquatic products and the like. Although many of the current daily water recycling rates can reach more than 90%, even the highest water recycling rate of the international leading level can reach 97%. However, generally, about 10% of high-concentration wastewater (mainly, during the water treatment process, high-concentration nitrogen and phosphorus sludge water such as backwash water or sewage water of a treatment unit, residual bait, feces, and a falling biofilm) tail water needs to be discharged out of the system every day, except that a filter press or other particulate sludge concentration and dehydration equipment facilities can be used for carrying out sludge concentration and dehydration on the wastewater to form a sludge cake for outward transportation, most of the rest wastewater (more than or equal to 98%) contains high-concentration total nitrogen (generally more than 5mg/L) and total phosphorus (generally more than 1mg/L), namely, the discharged tail water generated by a circulating water culture system exceeds the discharge standard specified in the tail water discharge requirement for freshwater culture (SC/T9101) and also exceeds the III-class water quality standard in the national surface water environmental quality standard (GB 3838-2002). At present, the discharged culture tail water generated by a circulating water culture system is directly discharged to a peripheral water area without being treated, and a very small amount of advanced treatment such as ecological ponds, artificial wetlands or chemical agent flocculation precipitation is additionally built outside the system to realize standard discharge. However, increased floor space, capital equipment and operating costs are required. Many farms are limited by land area and high in treatment cost, and tail water discharge treatment cannot be carried out, so that the environment of surrounding water areas is polluted or production is forcibly stopped due to unqualified environmental protection.
The current water treatment system for recirculating aquaculture mainly designs a water treatment process and constructs a corresponding water treatment unit according to the biological characteristics and ecological habits of aquaculture objects (such as fishes and shrimps) and the safety concentration requirements of main factors of water quality such as ammonia nitrogen, nitrite nitrogen and the like, so that the water quality of recirculating aquaculture water can meet the healthy aquaculture requirements of the aquaculture objects, and the healthy growth of the aquaculture objects is realized. But not have the treatment function of standard discharge of tail water.
[ summary of the invention ]
The technical problem to be solved by the utility model is to provide a circulating water cultivation and tail water treatment integrated water treatment system, which has the characteristics of high water treatment efficiency, capability of continuously maintaining the excellent water quality of a cultivation system, and water circulation utilization rate of 95% -98%; the system not only can fully meet the healthy breeding requirements of the breeding objects and realize the healthy growth of the breeding objects, but also has the tail water treatment function and can realize the standard-reaching discharge of the tail water.
The utility model discloses a realize like this:
a circulating water culture and tail water treatment integrated water treatment system comprises a sewage collecting tank, a physical filtering device, an electrode-suspended filler coupling biological filter treatment unit, an ozone and ultraviolet combined pathogenic microorganism killing tank and a sludge concentration and dehydration device; the sewage collecting tank is connected with a physical filtering device, the physical filtering device is connected with an electrode-suspended filler coupling biofilter processing unit, the electrode-suspended filler coupling biofilter processing unit is arranged adjacent to an ozone and ultraviolet combined pathogenic microorganism killing tank, the sewage collecting tank, the physical filtering device, the electrode-suspended filler coupling biofilter processing unit and the ozone and ultraviolet combined pathogenic microorganism killing tank are all connected with a sludge concentration and dehydration device, and the ozone and ultraviolet combined pathogenic microorganism killing tank is also connected with a culture tank;
the electrode-suspended filler coupled biofilter treatment unit comprises a biofilter, suspended fillers, a direct-current positive and negative electrode array combination, an electric stirring device and a carbon source supplementing device, wherein the suspended fillers are arranged in the biofilter, the direct-current positive and negative electrode array combination is arranged at the upper part of the biofilter, the electric stirring device is arranged at the lower part of the biofilter, a sludge hopper is arranged at the bottom of the biofilter, the electric stirring device is arranged above the sludge hopper, and the carbon source supplementing device is connected to the biofilter through a pipeline;
the volume ratio of the suspended filler to the water body in the biological filter is 20-50%; in the direct current cathode and anode array combination, the anode is iron, and the cathode is iron, carbon or copper.
Further, the suspension filler is made of high-density polyethylene, and the specific surface area is more than 500m2/m3。
Further, the distance between the adjacent electrodes of the direct current positive and negative electrode array combination is 2-30 cm.
Furthermore, the biological filter is formed by combining more than 2 filter bodies in series, and a direct current positive and negative electrode array combination can be arranged on part or all of the filter bodies.
Further, the physical filtering device is an automatic backflushing screen filter, a micro-filter or a sieve bend.
Further, the ozone and ultraviolet combined pathogenic microorganism killing pool comprises an ozone pool and an ultraviolet lamp-oxygen increasing pool which are adjacently arranged, wherein a microporous aeration disc is arranged at the bottom of the ozone pool and is connected with an ozone generator outside the pool body; an ultraviolet lamp is arranged at the upper part of the ultraviolet lamp-oxygenation pool, an oxygenation microporous pipe is arranged at the bottom of the ultraviolet lamp-oxygenation pool, the oxygenation microporous pipe is connected with an air pump outside the pool body, a water inlet of the ultraviolet lamp-oxygenation pool is arranged at the bottom, and a water outlet of the ultraviolet lamp-oxygenation pool is arranged at the upper part; and sludge hoppers are arranged at the bottoms of the ozone tank and the ultraviolet lamp-oxygen increasing tank and are connected with a sludge concentration and dehydration device.
Further, the ultraviolet lamp is arranged in an immersed mode.
The utility model has the advantages of as follows:
in a word, the utility model discloses mainly through the series physics that produce in the biological filter, chemistry and microbiological action, synthesize iron cation phosphate precipitation reaction, iron cation hydrate and polymer to the flocculation and precipitation effect, nitration and the denitrification of phosphorus and other particulate matters etc. reach and last, stabilize, efficient dephosphorization denitrogenation, degradation organic matter and reduce suspended solid concentration effect. Has the advantages of simple structure, less sludge production, no secondary pollution and the like.
The utility model discloses realize the dual function of circulating water aquaculture water treatment and tail water discharge to reach standard processing integratively, have festival ground, water treatment is efficient, investment and running cost are low, advantages such as management is simple and convenient. The utility model has the characteristics of high water treatment efficiency and capability of continuously maintaining the excellent water quality of the culture system, and the water circulation utilization rate can reach 95% -98%; the system not only can fully meet the healthy breeding requirements of the breeding objects and realize the healthy growth of the breeding objects, but also has the tail water treatment function and can realize the standard-reaching discharge of the tail water. The problem of current recirculating aquaculture water processing system function singleness, do not possess tail water discharge treatment capacity up to standard is solved.
[ 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 schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the matching structure of the middle electrode-suspended filler coupled biofilter treatment unit and the ozone ultraviolet combined pathogenic microorganism killing pond.
[ detailed description ] embodiments
Referring to fig. 1-2, the utility model relates to a circulating water culture and tail water treatment integrated water treatment system, which comprises a sewage collecting tank 1, a physical filtering device 2, an electrode-suspension filler coupling biofilter treatment unit 3, an ozone and ultraviolet combined pathogenic microorganism killing tank 4 and a sludge concentration and dehydration device 5; the sewage collecting tank 1 is connected with a physical filtering device 2, the physical filtering device 2 is connected with an electrode-suspended filler coupled biofilter processing unit 3, the electrode-suspended filler coupled biofilter processing unit 3 is arranged adjacent to an ozone and ultraviolet combined pathogenic microorganism killing tank 4, the sewage collecting tank 1, the physical filtering device 2, the electrode-suspended filler coupled biofilter processing unit 3 and the ozone and ultraviolet combined pathogenic microorganism killing tank 4 are all connected with a sludge concentration and dehydration device 5, and the ozone and ultraviolet combined pathogenic microorganism killing tank 4 is also connected with a culture tank 6;
the electrode-suspended filler coupled biofilter treatment unit 3 comprises a biofilter 31, suspended fillers 32, a direct current negative and positive electrode array combination 33, an electric stirring device 34 and a carbon source supplementing device 35, wherein the suspended fillers 32 are arranged in the biofilter 31, the direct current negative and positive electrode array combination 33 is arranged at the upper part of the biofilter 31, the electric stirring device 34 is arranged at the lower part of the biofilter 31, a sludge hopper 7 is arranged at the bottom of the biofilter 31, the electric stirring device 34 is arranged above the sludge hopper 7, and the carbon source supplementing device 35 is connected to the biofilter 31 through a pipeline;
the volume ratio of the suspended filler 32 to the water body in the biological filter 31 is 20-50%, and the density of the suspended filler 32 is 0.92-0.98 g/cm3(ii) a In the direct current cathode-anode array combination 33, the anode is iron, and the cathode is iron, carbon or copper; the rotating speed of the electric stirring device 34 is 100-300 r/min.
The suspension filler 32 is made of high-density polyethylene and has a specific surface area of more than 500m2/m3。
The distance between the adjacent electrodes of the direct current positive and negative electrode array combination 33 is 2-30cm, and the operating voltage and current are respectively as follows: the direct current voltage is 12-36V, and the micro-current density is 0.1-1.0 mA/cm2。
The biological filter 31 is formed by combining more than 2 filter bodies in series, and a direct current positive and negative electrode array combination 33 can be arranged on part or all of the filter bodies.
The physical filtering device 2 is an automatic backflushing screen filter, a micro-filter or a curved screen.
The ozone and ultraviolet combined pathogenic microorganism killing tank 4 comprises an ozone tank 41 and an ultraviolet lamp-oxygen increasing tank 42 which are adjacently arranged, wherein a microporous aeration disc 411 is arranged at the bottom of the ozone tank 41, and the microporous aeration disc 411 is connected with an ozone generator outside the tank body; an ultraviolet lamp 421 is arranged at the upper part of the ultraviolet lamp-oxygen increasing pool 42, an oxygen increasing microporous pipe 422 is arranged at the bottom of the ultraviolet lamp-oxygen increasing pool 42, the oxygen increasing microporous pipe 422 is connected with an air pump outside the pool body, a water inlet of the ultraviolet lamp-oxygen increasing pool 42 is arranged at the bottom, and a water outlet is arranged at the upper part; the bottom of the ozone tank 41 and the bottom of the ultraviolet lamp-oxygen increasing tank 42 are both provided with sludge buckets 7, and the sludge buckets 7 are connected with a sludge concentration and dehydration device 5.
The ozone generator inputs ozone to treat the water body 4-12 times per day, and the duration time of each time is 20-60 min; the hydraulic retention time in the ultraviolet lamp-oxygen increasing pool 42 is 15-40 min.
The ultraviolet lamp 421 is disposed in an immersion manner.
The utility model discloses the working process is as follows: after the culture tail water enters a sewage collecting tank 1, the culture tail water is extracted by a water pump and enters a physical filtering device 2, the filtered water enters an electrode-suspended filler coupling biofilter treatment unit 3, and backwash water (less than or equal to 1.5%) containing large granular substances such as residual bait, excrement and the like enters a sludge concentration and dehydration device 5; forming sludge cake organic fertilizer in the sludge concentration and dehydration device 5 and transporting the sludge out of the system, returning the concentrated and dehydrated water to the sewage collection tank 1 or discharging the water out of the system; in the electrode-suspended filler coupled biological filter treatment unit 3, the bottom of the biological filter 31 is provided with a sludge hopper 7 which can discharge sewage periodically, and the sludge water (less than or equal to 3 percent) is discharged into a sludge concentration dehydration device 5; the water treated by the electrode-suspended filler coupling biofilter treatment unit 3 flows into the ozone ultraviolet combined pathogenic microorganism killing tank 4 to kill pathogenic microorganisms and moderately increase oxygen to obtain purified water, and the purified water flows back to the culture tank; the ozone and ultraviolet combined pathogenic microorganism killing pool 4 is provided with a sludge hopper 7 which can discharge the sludge periodically, and the sludge water (less than or equal to 0.5 percent) is discharged into a sludge concentration dehydration device 5.
The working principle of each device is as follows:
1. the sewage collecting pool 1 is mainly used for collecting all the culture tail water discharged from the culture pool, more than 2 submersible pumps (1 of which is standby) are arranged in the pool, and the pool water is extracted to the physical filtering device 2.
2. The physical filtering device 2 is a physical filtering device such as an automatic backflushing screen filter, a micro-filter or a sieve bend and the like, separates large granular substances in water, automatically leads the backflushing water (less than or equal to 1.5 percent) containing large granular substances such as residual bait, excrement and the like to enter the sludge dehydration and concentration device 5, and leads the water filtered by the screen to enter the electrode-suspended filler coupling biological filter processing unit 3.
3. The working principle of the electrode-suspended filler coupled biofilter treatment unit 3 is as follows:
(1) due to the action of the DC electric field of the DC positive and negative electrode array combination 33, iron (anode) generates a large amount of iron cations, and a large amount of Fe is generated2+And Fe3+Carrying out precipitation reaction with phosphate in the culture tail water to form granular and non-soluble substances which are deposited in a sludge hopper 7 at the bottom of the biological filter 31; meanwhile, iron cations are subjected to a series of hydrolytic polymerization reactions, and Fe2+And Fe3+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 Fe3+Produced by hydrolysis, e.g. [ Fe ]2(OH)2]4+、[Fe3(OH)4]5+、[Fe5(OH)9]6+The polynuclear hydroxyl complex can play the role of a flocculating agent, can be subjected to the sedimentation with suspended substances (containing suspended phosphorus, including biological phosphorus and indissolvable phosphate particles), granular substances, electrolytes and the like in the culture tail water, and is settled in a sludge hopper 7 at the bottom of the biological filter 31.
(2) Dissolved oxygen contained in the culture tail water and oxygen generated by electrolyzing water by the iron anode can provide dissolved oxygen required for nitrification reaction for a large amount of nitrosation and nitrifying bacteria in a biological membrane attached to the suspended filler 32, so that ammonia nitrogen is converted into nitrite nitrogen and nitrate nitrogen, and an air pump is not needed for increasing oxygen; meanwhile, due to the rapid consumption of dissolved oxygen, the water body in the pool, particularly the lower layer of the pool water, rapidly forms an anoxic or anaerobic water environment to promote the denitrification reaction.
(3) Heterotrophic denitrifying bacteria in the pond utilize an organic carbon source in culture water as an electron donor to perform denitrification reaction, so that nitrate nitrogen is finally generated through denitrification reaction to overflow the system and is removed.
(4) The hydrogen generated by cathode electrolysis of water can be used as an electron donor of hydrogen autotrophic denitrifying bacteria, and CO in tail water2Can provide inorganic carbon source for the autotrophic bacteria to generate autotrophic denitrification reaction, so that nitrate nitrogen is generated through denitrification reaction to generate nitrogen gas which overflows the system and is removed.
In addition, the hydrogen generated by the electrolyzed water can stimulate the growth and metabolism of autotrophic denitrifying bacteria attached to the surface of the suspended filler 32, and meanwhile, redox substances generated by electrolysis provide a suitable environment for the growth and propagation of microorganisms, provide an inorganic carbon source and an electron donor for the denitrification process of the autotrophic denitrifying bacteria, and further promote the autotrophic denitrification process, thereby improving the removal of total nitrogen.
(5) The density (0.92-0.98 g/cm) of the suspended filler 32 is utilized3) Close to fresh water, a uniform suspended state is easily formed in the water body of the biological filter, and simultaneously, a fluidized state can be formed under the continuous slow stirring of the electric stirring device 34 and the flowing of water flow, so that the biological membrane attached to the suspended filler 32 is easily in continuous flowing contact with pollutants in the culture wastewater, the speed of nitration reaction and denitrification reaction is improved, the continuous friction and the flowing through of the suspended filler 32 and the water flow on the surface of an electrode are facilitated, and the density is 0.92-0.98 g/cm under the same volume3The friction force of the suspended filler is larger, the surface of the (anode) iron can be better removed by the oxide, the surface of the (anode) iron is prevented from being passivated by the oxide which forms a compact covering layer, the normal operation of electrode electrolytic reaction is influenced, and the passivation problem of the (anode) iron is effectively solved.
(6) The micro-current can strengthen the microorganisms such as bacteria and the like in the biological membrane on the suspended filler 32, can change the permeability of the bacterial cell membrane, is beneficial to the enzyme in the bacterial cell membrane to carry out a series of enzymatic reactions in the wastewater through the cell membrane, increases the contact between the enzyme in the cell membrane and a reaction substrate in the water, and further enhances the effect of degrading nitrogen and phosphorus in the aquaculture wastewater to a certain extent; in addition, the micro-current can also directly stimulate and strengthen the activity of extracellular enzymes secreted by certain bacteria and promote the degradation of nitrogen, phosphorus and other pollutants in water.
(7) As the concentration of organic carbon in the culture tail water is generally low and is consumed quickly, in order to promote the heterotrophic denitrification reaction in the pond, the carbon source supplementing device 35 is used for supplementing carbon sources such as brown sugar and the like. An automatic feeding device can be configured, a certain amount of brown sugar is added into the solution barrel at regular intervals, the stirring machine is started to dissolve, and the brown sugar is automatically fed into the tank through a metering pump according to a certain amount through a pipeline so as to continuously and rapidly promote the heterotrophic denitrification reaction.
The reaction rate of heterotrophic denitrification is several times (about 7 times) faster than that of autotrophic denitrification reaction, and meanwhile, the population growth and propagation speed of heterotrophic denitrifying bacteria are higher than that of autotrophic denitrifying bacteria. Therefore, organic carbon sources such as brown sugar and the like are added to supplement the nitrogen, so that denitrification can be obviously accelerated.
The TP removal rate and the TN removal rate have a certain positive correlation, namely when the TN removal effect is good, the TP also has a good removal effect. The utility model discloses in, the iron electrode can provide the electron that the denitrification reaction needs, has certain enhancement denitrification effect, promotes NO3 -The mass concentration of-N and TN is reduced, which is beneficial to promoting the biological phosphorus removal of phosphorus-accumulating bacteria in the filler biomembrane and the water body and synergistically promoting the removal of TP. Furthermore, the utility model discloses a supplementary carbon source high efficiency promotes denitrification device has greatly promoted going on of denitrification, promotes NO3 -Decrease in the mass concentration of N and TN. The synergy promotes sustained deep removal of TP concentration. Therefore, the utility model discloses an electrode-suspension filler coupling technique promotes the integrated integration of denitrification technique with supplementary carbon source high efficiency and fuses integratively, in coordination mutually, has promoted nitrogen and phosphorus removal efficiency and clearance.
4. The sludge concentration dehydration device 5 adopts a sludge filter press device or is provided with a water filtering layer drying pool facility, sludge after concentration and dehydration is formed into a sludge cake (organic fertilizer) and is transported out of the system, and the filtered water is returned to the sludge collection pool 1 or discharged out of the system.
5. The ozone and ultraviolet combined pathogenic microorganism killing pool 4 is formed by combining an ozone pool 41 and an ultraviolet lamp-oxygen increasing pool 42. The combined tank is adjacent to an electrode-suspended filler coupled biological filter treatment unit 3, water treated by the electrode-suspended filler coupled biological filter treatment unit 3 flows into an ozone tank 41, a microporous aeration disc 411 is arranged at the lower layer or bottom layer of water in the ozone tank 41, ozone is input into an ozone generator outside the tank at regular time (generally 4-12 times per day) every day to treat the water, and the single duration of the ozone treatment is 20-60 min;
the treated water flows into an ultraviolet lamp-oxygen increasing pool 42, an immersed ultraviolet lamp 421 is arranged on the middle upper layer of the water body in the pool or an ultraviolet lamp 421 is arranged on the upper layer of the water body in the pool, an oxygen increasing microporous pipe 422 is arranged on the bottom layer of the water body, the oxygen increasing microporous pipe 422 is connected with an air pump outside the pool through a pipeline, air is input into the oxygen increasing microporous pipe 422 to increase oxygen in the pool water, and meanwhile, continuously generated micro bubbles can play a role in cleaning the outer quartz pipe wall of the ultraviolet lamp 421, so that attachments are prevented from being adhered, and the high light; the water in the ultraviolet lamp-oxygen increasing pool 42 flows from bottom to top at a certain flow rate to generate upward flow, and flows through an ultraviolet light area constructed by combining the ultraviolet lamps 421, in the ultraviolet light area, ozone in the water can generate hydroxyl free radicals with stronger oxidability under the irradiation of ultraviolet rays, the hydroxyl free radicals can quickly react with substances which can be oxidized in the water so as to accelerate the decomposition of the ozone, and the hydroxyl free radicals have stronger oxidability than the ozone and can be deeply oxidized and quickly react with the substances which can be oxidized in the water body so as to achieve stronger capability of killing microorganisms such as bacteria, viruses, fungi, microalgae, parasites, ova, spores and the like in the water, and simultaneously, the residual of the concentration of the ozone in the water body is efficiently removed, so that the residual of the concentration of the ozone enters the culture pool along with the yielding water and endangers cultured animals; the hydraulic retention time HRT of the water treatment in the ultraviolet lamp-oxygen increasing pool 42 is about 15-40 min, and the treated purified water is collected from a water collecting pipe arranged at a water outlet at the upper part of the pool, then flows out of a water discharging pipe and returns to the culture pool 6. In addition, the bottom of the ozone tank 41 and the bottom of the ultraviolet lamp-oxygen increasing tank 42 are both provided with sludge buckets 7 for precipitating sludge in water, and the sludge buckets 7 are provided with sludge discharge pipes which can periodically discharge sewage containing sludge to the sludge thickening and dewatering device 5.
The present invention will be further described with reference to the following specific examples.
By applying the method and the device, the circulating water culture and tail water treatment integrated water treatment system is constructed, the circulating water culture system is applied to eel circulating water culture, the water circulation utilization rate is up to 98%, and the monitoring result data is as follows:
in the table, the water quality of the culture pond refers to the water quality of the culture pond in the recirculating aquaculture system during the culture period; the treated effluent refers to the quality of purified water treated by the ozone and ultraviolet combined pathogenic microorganism killing pool 4; the external drainage refers to filtered water which is treated by sludge concentration and dehydration by the sludge concentration and dehydration device 5 and can be discharged out of the system.
The data in the table show that the water quality of the water body in the culture pond in the recirculating aquaculture system during the culture period can meet the III-class water quality standard in the national surface water environment quality standard (GB3838-2002) and the national fishery water quality standard (GB 11607-1989); the quality of the discharged water outside the discharge system can meet the class III water quality standard in the national surface water environmental quality standard (GB3838-2002) and the primary discharge standard specified in the freshwater aquaculture tail water discharge requirement (SC/T9101).
In a word, the utility model discloses mainly through the series physics that produce in the biological filter, chemistry and microbiological action, synthesize iron cation phosphate precipitation reaction, iron cation hydrate and polymer to the flocculation and precipitation effect, nitration and the denitrification of phosphorus and other particulate matters etc. reach and last, stabilize, efficient dephosphorization denitrogenation, degradation organic matter and reduce suspended solid concentration effect. Has the advantages of simple structure, less sludge production, no secondary pollution and the like.
The utility model discloses realize the dual function of circulating water aquaculture water treatment and tail water discharge to reach standard processing integratively, have festival ground, water treatment is efficient, investment and running cost are low, advantages such as management is simple and convenient. The utility model has the characteristics of high water treatment efficiency and capability of continuously maintaining the excellent water quality of the culture system, and the water circulation utilization rate can reach 95% -98%; the system not only can fully meet the healthy breeding requirements of the breeding objects and realize the healthy growth of the breeding objects, but also has the tail water treatment function and can realize the standard-reaching discharge of the tail water. The problem of current recirculating aquaculture water processing system function singleness, do not possess tail water discharge treatment capacity up to standard is solved.
Although specific embodiments of the present invention have been described, 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, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the claims appended hereto.
Claims (7)
1. The utility model provides a recirculating water aquaculture and tail water treatment integration water treatment system which characterized in that: the water treatment system comprises a sewage collecting tank, a physical filtering device, an electrode-suspended filler coupling biological filter treatment unit, an ozone and ultraviolet combined pathogenic microorganism killing tank and a sludge concentration and dehydration device; the sewage collecting tank is connected with a physical filtering device, the physical filtering device is connected with an electrode-suspended filler coupling biofilter processing unit, the electrode-suspended filler coupling biofilter processing unit is arranged adjacent to an ozone and ultraviolet combined pathogenic microorganism killing tank, the sewage collecting tank, the physical filtering device, the electrode-suspended filler coupling biofilter processing unit and the ozone and ultraviolet combined pathogenic microorganism killing tank are all connected with a sludge concentration and dehydration device, and the ozone and ultraviolet combined pathogenic microorganism killing tank is also connected with a culture tank;
the electrode-suspended filler coupled biofilter treatment unit comprises a biofilter, suspended fillers, a direct-current positive and negative electrode array combination, an electric stirring device and a carbon source supplementing device, wherein the suspended fillers are arranged in the biofilter, the direct-current positive and negative electrode array combination is arranged at the upper part of the biofilter, the electric stirring device is arranged at the lower part of the biofilter, a sludge hopper is arranged at the bottom of the biofilter, the electric stirring device is arranged above the sludge hopper, and the carbon source supplementing device is connected to the biofilter through a pipeline;
in the direct current cathode and anode array combination, the anode is iron, and the cathode is iron, carbon or copper.
2. The system of claim 1, wherein the system comprises: the suspension filler is made of high-density polyethylene and has a specific surface area of more than 500m2/m3。
3. The system of claim 1, wherein the system comprises: the distance between the adjacent electrodes of the direct current positive and negative electrode array combination is 2-30 cm.
4. The system of claim 1, wherein the system comprises: the biological filter is formed by combining more than 2 filter bodies in series, and a part or all of the filter bodies can be combined by arranging a direct current positive and negative electrode array.
5. The system of claim 1, wherein the system comprises: the physical filtering device is an automatic back-flushing screen filter, a micro-filter or a curved screen.
6. The system of claim 1, wherein the system comprises: the ozone and ultraviolet combined pathogenic microorganism killing pool comprises an ozone pool and an ultraviolet lamp-oxygen increasing pool which are adjacently arranged, wherein a micropore aeration disc is arranged at the bottom of the ozone pool and is connected with an ozone generator outside the pool body; an ultraviolet lamp is arranged at the upper part of the ultraviolet lamp-oxygenation pool, an oxygenation microporous pipe is arranged at the bottom of the ultraviolet lamp-oxygenation pool, the oxygenation microporous pipe is connected with an air pump outside the pool body, a water inlet of the ultraviolet lamp-oxygenation pool is arranged at the bottom, and a water outlet of the ultraviolet lamp-oxygenation pool is arranged at the upper part; and sludge hoppers are arranged at the bottoms of the ozone tank and the ultraviolet lamp-oxygen increasing tank and are connected with a sludge concentration and dehydration device.
7. The system of claim 6, wherein the system comprises: the ultraviolet lamp is arranged in an immersed mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920780544.2U CN210261453U (en) | 2019-05-28 | 2019-05-28 | Recirculating aquaculture and tail water treatment integrated water treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920780544.2U CN210261453U (en) | 2019-05-28 | 2019-05-28 | Recirculating aquaculture and tail water treatment integrated water treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210261453U true CN210261453U (en) | 2020-04-07 |
Family
ID=70038947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920780544.2U Active CN210261453U (en) | 2019-05-28 | 2019-05-28 | Recirculating aquaculture and tail water treatment integrated water treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210261453U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110156263A (en) * | 2019-05-28 | 2019-08-23 | 集美大学 | A kind of circulating water cultivation and tail water handle integrated water processing system |
| WO2022217674A1 (en) * | 2021-04-13 | 2022-10-20 | 山东大学 | Microalgae culture pond-artficial wetland coupling system and method for deep purification of sewage |
| CN118324372A (en) * | 2024-06-17 | 2024-07-12 | 济宁鑫惠生水产养殖专业合作社 | Energy-saving and environment-friendly tail water treatment device for aquaculture |
-
2019
- 2019-05-28 CN CN201920780544.2U patent/CN210261453U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110156263A (en) * | 2019-05-28 | 2019-08-23 | 集美大学 | A kind of circulating water cultivation and tail water handle integrated water processing system |
| WO2022217674A1 (en) * | 2021-04-13 | 2022-10-20 | 山东大学 | Microalgae culture pond-artficial wetland coupling system and method for deep purification of sewage |
| CN118324372A (en) * | 2024-06-17 | 2024-07-12 | 济宁鑫惠生水产养殖专业合作社 | Energy-saving and environment-friendly tail water treatment device for aquaculture |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103435224A (en) | Waste water treatment technology for livestock breeding | |
| WO2020238253A1 (en) | Recirculating aquaculture water treatment system integrating tailwater treatment | |
| CN110255809A (en) | A kind of cultivation of seawater circulation water and tail water handle integrated water processing system | |
| CN103304101B (en) | Resource utilization and regeneration circulation utilization device for livestock and poultry breeding wastewater | |
| CN103288303A (en) | Livestock/poultry breeding wastewater resource utilization and regeneration recycling method | |
| CN101759323A (en) | Treatment combined process for pig farm waste water with high nitrogen content | |
| CN210261453U (en) | Recirculating aquaculture and tail water treatment integrated water treatment system | |
| CN114600825B (en) | Dual cycle aquaculture system | |
| CN110240353A (en) | A kind of sea-farming tail water treatment system | |
| CN210261456U (en) | Seawater recirculating aquaculture and tail water treatment integrated water treatment system | |
| CN106007211A (en) | Farm waste water treatment method | |
| CN203307182U (en) | Resource utilization and regenerative recycling device of livestock and poultry breeding wastewater | |
| CN113772900A (en) | Efficient nitrogen and phosphorus removal process system for mariculture tail water treatment | |
| CN110240257A (en) | A kind of high-efficient denitrification and dephosphorization system handling aquaculture tail water | |
| CN114084998A (en) | Rubbish transfer station waste water and domestic sewage cooperative processing system | |
| CN103288302A (en) | Livestock/poultry breeding wastewater resource utilization and treatment device | |
| CN208071545U (en) | A kind of mine domestic wastewater processing unit | |
| CN106946403A (en) | UASB two-stage A/O coagulating treatments pig farm biogas slurry technique | |
| CN103936230A (en) | Sewage treating method combining activated sludge process with bio-contact oxidation process | |
| WO2020238021A1 (en) | Intensive modular combined aquaculture tail water treatment system | |
| CN210261454U (en) | Mariculture tail water treatment system | |
| CN110183032A (en) | A kind of livestock breeding wastewater recycling treatment system | |
| CN105036819A (en) | Facility for producing earthworm breeding loam by utilizing aquaculture sewage and method | |
| CN107540160A (en) | Cultivation wastewater purification handling process and its device | |
| CN217437983U (en) | Light and medium eutrophication artificial landscape lake water body treatment equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |