CN210030315U - Aquaculture sewage treatment equipment - Google Patents
Aquaculture sewage treatment equipment Download PDFInfo
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- CN210030315U CN210030315U CN201920463748.3U CN201920463748U CN210030315U CN 210030315 U CN210030315 U CN 210030315U CN 201920463748 U CN201920463748 U CN 201920463748U CN 210030315 U CN210030315 U CN 210030315U
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Abstract
The utility model relates to an aquaculture sewage treatment device, including biofilter, biofilter passes through pipeline and biofilter, bioreactor, aeration regulation pond, coagulating sedimentation tank and communicates in proper order, biofilter is equipped with first filter unit, second filter unit by the water inlet direction in proper order, be equipped with metalling, first zeolite layer, adsorbed layer, second zeolite layer, cobble layer in the biofilter from top to bottom, the adsorbed layer is hickory shell or iron and carbon granule or its combination. The utility model discloses utilize biofilter, biological filter, bioreactor, aeration regulation pond, coagulating sedimentation tank to combine to handle, can retrieve after the thorough purification treatment with aquaculture sewage and be used for breeding.
Description
Technical Field
The utility model relates to a sewage treatment technical field specifically is an aquaculture sewage treatment device.
Background
When the aquaculture industry is developed rapidly, the cultured species are degraded, particularly the high-density culture of a pond and the random discharge of industrial wastewater and domestic sewage cause the self-purification and regulation capability of the pond to be reduced and the environment of a water area to be worsened. For example, in a breeding mode mainly based on bait casting, residual bait, excrement, N, P and other eutrophic factors are discharged into a water body, so that the Chemical Oxygen Demand (COD) and the Biological Oxygen Demand (BOD) in the breeding water body seriously exceed the three national water quality standards. It is estimated that 0.2 ton of N element and 0.05 ton of P element can be added into water body every 1 ton of shrimps are produced, and as a result, diseases of fishes and shrimps occur frequently, which becomes a bottleneck affecting the survival rate and yield of aquatic product cultivation organisms in China. Therefore, improving the aquaculture water area environment becomes a key technology and research hotspot for the sustainable development of the production of the aquaculture industry.
Disclosure of Invention
In view of the above-mentioned not enough of prior art, the utility model aims to provide an aquaculture sewage treatment device adopts two tower pressurization strip processes, successfully separates out high-purity hydrogen fluoride, and dilute sulfuric acid solution and hydrogen fluoride gas completely separate.
The utility model adopts the technical proposal that:
the utility model provides an aquaculture sewage treatment device, includes biofilter, biofilter passes through pipeline and biofilter, bioreactor, aeration regulation pond, coagulating sedimentation tank and communicates in proper order, biofilter is equipped with first filter unit, second filter unit by the water inlet direction in proper order, be equipped with rubble layer, first zeolite layer, adsorbed layer, second zeolite layer, cobble layer in the biofilter from top to bottom, the adsorbed layer is hickory shell or iron carbon granule or its combination.
Preferably, the adsorption layer is a mixture of the pecan shells and the iron-carbon particles according to a volume ratio of 1: 1.
Preferably, the thickness of the crushed stone layer is 145-155mm, and the particle size of the crushed stone is 1-2 cm; the thickness of the first zeolite layer is 145-155mm, and the particle size of the zeolite is 8-10 mm; the thickness of the adsorption layer is 190-210mm, wherein the grain diameter of the pecan shell is 10-15mm, and the grain diameter of the iron-carbon particles is 45-50 mm; the thickness of the second zeolite layer is 145-155mm, and the particle size of the zeolite is 8-10 mm; the thickness of the pebble layer is 190-210mm, and the particle size of the pebbles is 50-80 mm.
Preferably, the first filtering unit is a fiber bundle filter material, the second filtering unit is zeolite, and the particle size of the zeolite is 8-10 mm.
Further preferably, the fiber bundle is an olive-shaped fiber floc, the length of the olive shape is 500-600mm, the middle width is 800mm, and the particle size of the zeolite of the second filtering unit is 8-10 mm.
Preferably, the horizontal (mixing) shaft of bioreactor, be equipped with a plurality of bracing pieces on the (mixing) shaft, helical blade is installed to the bracing piece free end, bioreactor is close to water inlet one side and is equipped with microbial degradation microbial inoculum pan feeding mouth.
Preferably, the stirring shaft is driven by a motor disposed outside the bioreactor.
Preferably, a water distribution pipe is arranged above the biological filter, and the water distribution pipe is provided with water distribution holes.
The utility model discloses following beneficial effect has:
1. the utility model discloses utilize biofilter, biological filter, bioreactor, aeration regulation pond, coagulating sedimentation tank to combine to handle, can retrieve after the thorough purification treatment with aquaculture sewage and be used for breeding. The biological filter is mainly aimed at the characteristic of high content of suspended substances in wastewater, plays roles of physically intercepting the suspended substances and preventing the rear end filler from being blocked, can also stabilize the quality of inlet water, and is complementary with the biological filter in function. The biological filter tank not only has good physical interception function, but also can enrich microorganisms to degrade pollutants. The microbial degradation bacteria in the bioreactor further decompose and utilize pollutants in the water body, thereby playing a role in reducing pollutants such as COD, ammonia nitrogen, nitrite, nitrate and the like in the water body. And the sewage from the bioreactor enters an aeration adjusting tank and a coagulating sedimentation tank, is subjected to aeration treatment and coagulating sedimentation, and is filtered to be pumped into an aquaculture tank, so that the treatment and the cyclic utilization of the aquaculture sewage are completed.
2. The first filtering unit is a fiber bundle filter material which is an olive-shaped fiber floc, the fiber filter material has a large surface area, has a good interception effect on feed-type organic substances in the wastewater, and is proved that a large number of microorganisms which are beneficial to wastewater decomposition are gathered on the surface of the fiber filter material by combining a large number of biological membranes existing on the fiber filter material in a test.
3. The first zeolite layer, the adsorption layer and the second zeolite layer in the biological filter are alternately laid because zeolite filler has good adsorption effect on pollutants; the pecan shells serving as a slow-release carbon source can maintain the carbon concentration in the system in a proper range; the iron-carbon particles not only play a role in micro-electrolysis and dephosphorization, but also are filler for microbial growth, so that the microbial diversity can be effectively increased, and the filler layers are alternately paved to play a composite effect of various biological reactions.
4. The used flocculating agent is green and has no toxic or side effect, the synergistic adsorption effect among all the components is fully exerted, the flocculating effect is good, the suspended particles in the water body can be effectively adsorbed, the organic matters in the aquaculture sewage are effectively removed, the aquaculture pollution is degraded, the COD (chemical oxygen demand) and the ammonia nitrogen in the water body are reduced, and the flocculating agent also has good turbidity removal and decoloration performances.
5. The first filtering unit is filled with high-molecular fiber bundle filtering materials with large specific surface area and good particulate interception capability, and zeolite, gravel and other materials with strong cation exchange capability, and the inside of the treatment system is filled with pores with various sizes, so that organic substances, nitrogen and phosphorus can be effectively intercepted and adsorbed. In the filler layer, abundant microbial flora related to organic matter metabolism exists, and the synergistic effect of filler interception, holding and microbial decomposition ensures the continuous removal of organic matters. Phosphorus compoundCan be completely removed and enters a zeolite filter unit along with water flow. The zeolite is porous aluminosilicate, has effects of filtering and adsorbing phosphorus, and contains Ca2+、Mg2+、Al3+、Fe3+The plasma can also chemically co-precipitate with the phosphorus, causing some of the phosphorus to be immobilized. The residual phosphorus enters a biological filter and a bioreactor along with water, and is subjected to microbial decomposition, filler filtration and adsorption, and chemical precipitation and ion exchange with metal cations on the filler, and finally removed.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: the biological filter comprises a biological filter 1, a first filtering unit 11, a second filtering unit 12, a biological filter 2, a crushed stone layer 21, a first zeolite layer 22, an adsorption layer 23, a second zeolite layer 24, a pebble layer 25, a water distribution pipe 26, a biological reactor 3, a stirring shaft 31, a supporting rod 32, a spiral blade 33, a microbial degradation microbial inoculum inlet 34, a motor 35, an aeration regulating tank 4 and a coagulation sedimentation tank 5.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but the embodiments of the present invention are not limited to the scope of the examples. These examples are intended to illustrate the invention only and are not intended to limit the scope of the invention.
Example 1
The utility model provides an aquaculture sewage treatment device, includes biofilter 1, biofilter 1 communicates in proper order with biofilter 2, bioreactor 3, aeration regulation pond 3, coagulating sedimentation tank 4 through the pipeline, biofilter 1 is equipped with first filter unit 11, second filter unit 12 by the water inlet direction in proper order, be equipped with rubble layer 21, first zeolite layer 22, adsorbed layer 23, second zeolite layer 24, pebble layer 25 from top to bottom in the biofilter 2, adsorbed layer 23 is hickory shell or iron carbon granule or its combination.
Preferably, the adsorption layer 23 is a mixture of pecan shells and iron-carbon particles in a volume ratio of 1: 1-1.5.
Preferably, the thickness of the crushed stone layer 21 is 145-155mm, and the particle size of the crushed stone is 1-2 cm; the thickness of the first zeolite layer 22 is 145-155mm, and the particle size of the zeolite is 8-10 mm; the thickness of the adsorption layer 23 is 190-210mm, wherein the particle size of the pecan shell is 10-15mm, and the particle size of the iron-carbon particles is 45-50 mm; the thickness of the second zeolite layer 24 is 145-155mm, and the particle size of the zeolite is 8-10 mm; the thickness of the pebble layer 25 is 190-210mm, and the particle size of the pebbles is 50-80 mm.
Preferably, the first filtering unit 11 is a fiber bundle filter material, and the second filtering unit 12 is zeolite, and the particle size of the zeolite is 8-10 mm.
Further preferably, the fiber bundle is an olive-shaped fiber floc, the length of the olive shape is 500-600mm, the middle width is 800mm, and the zeolite particle size of the second filtering unit 12 is 8-10 mm.
Preferably, bioreactor 3 horizontally (mixing) shaft 31, be equipped with a plurality of bracing pieces 32 on the (mixing) shaft 31, helical blade 33 is installed to bracing piece 32 free end, bioreactor 3 is close to water inlet one side and is equipped with microbial degradation microbial inoculum pan feeding 34.
Preferably, said stirring shaft 31 is driven by a motor 35 arranged outside the bioreactor 3.
Preferably, a water distribution pipe 27 is arranged above the biological filter 2, and the water distribution pipe 27 is provided with water distribution holes.
The utility model discloses the work flow does: the aquaculture sewage flows into a biological filter 1 for filtering, then a biological filter 2 is used for filtering and adsorbing, then the aquaculture sewage enters a biological reactor 3, is pumped into an aeration adjusting tank 4 for aeration after 24 hours, then flows into a coagulating sedimentation tank 5, a flocculating agent is added into the coagulating sedimentation tank 5, the mixture is stirred and then stands still, and the upper water body is pumped into a culture pond for culture production. The microbial degradation microbial inoculum in the bioreactor 3 is a composition of bacillus and photosynthetic bacteria according to the mass ratio of 1: 0.3. Before wastewater treatment, COD is 65-75mg/L, TN5-6mg/L, NH3-N2.1-2.7mg/L, TP 1.1.1-1.3 mg/L, pH6.8-7.5mg/L, wastewater treatment for 99 days, effluent after wastewater treatment: COD5-11mg/L, TN0.3mg/L or less, NH3The N concentration is reduced to be below 0.1-0.25mg/L, and the samples with the removal rate of 100 percent in effluent of the biofilter 1, the biofilter 2 and the bioreactor 3 respectively account for 36.5 percent and 30.1 percent.The biofilter 1 adsorbs 7.2g of phosphorus, the filler in the biofilter 2 adsorbs 25.6g of phosphorus together, the zeolite has a good adsorption effect on phosphorus and is an important phosphorus removal way, the phosphorus adsorption amount of the zeolite is the largest, the crushed stone is the second place, the adsorption effect of the pebble on phosphorus is very limited, and part of phosphorus is adhered to the surface of the hickory shell.
The first filtering unit 11 in the biological filter 1 is made of organic high molecular polymer polyethylene terephthalate, and a large amount of clustered biological films are attached to the surface of the organic high molecular polymer polyethylene terephthalate. The surface fiber bundle filter is mainly aerobic microorganisms (mosaic, nitrosomonas and nitrobacter), and propagates and moves in the aerobic microorganisms to decompose and utilize organic substances. The fiber bundle filter material at the depth of 20cm is a transition layer from aerobic environment to anaerobic environment, and a low-oxygen environment exists, so that the bacteria of the genera corm, nitrosomonas and nitrobacter still exist, but the superiority is obviously reduced. The desulfurize folpet and the desulfurize vibrio are anaerobic heterotrophic bacteria with organic energy, mainly used for further transforming organic substances decomposed at the upper layer, and relate to nitration reaction, denitrification nitrogen and phosphorus removal, sulfuric acid reducing bacteria fermentation capacity and the like.
The crushed stone layer 21 in the biological filter 2 mainly plays a role in uniformly distributing water and protecting lower-layer fillers, has a certain effect on wastewater treatment, mainly takes aerobic or facultative aerobic bacteria, can reduce the concentration of refractory pollutants, and can degrade toxic substances such as monocyclic aromatic hydrocarbon, biphenyl, PAHs, PCBs, pentachlorophenol and the like. The terreus species in the first zeolite layer 22 showed a strong dominance of 9.0% of the total biomass, followed by 3.1% of the genus ferribacterium. The removal effect on the wastewater pollutants mainly comprises denitrification nitrogen and phosphorus removal and degradation of a small amount of organic matters. The adsorption layer 23 functions to provide a denitrification carbon source (pecan shells) and micro-electrolysis materials (iron-carbon particles). The main components of the walnut shell are lignin and fiber, the large surface area of the walnut shell is favorable for attachment of a biological membrane, and the walnut shell is an ideal material of a solid carbon source. The slow decomposition of the pecan shells, the iron-carbon micro-electrolysis and the denitrification nitrogen and phosphorus removal reaction are required to occur. The second zeolite layer 24 mainly relates to the decomposition of organic matters and denitrification nitrogen and phosphorus removal reaction. The pebble bed 25, also called water collection bed, is where the effluent is collected and where the microorganisms are polymerized, and there are nitrification, anaerobic denitrification and organic matter decomposition reactions. Polyacrylamide
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent shapes or structural changes made by the contents of the specification and the drawings or directly or indirectly applied to other related technical fields are included in the same way in the protection scope of the present invention.
Claims (6)
1. The utility model provides an aquaculture sewage treatment device, includes biofilter (1), its characterized in that, biofilter (1) communicates in proper order through pipeline and biofilter (2), bioreactor (3), aeration adjusting tank (4), coagulating sedimentation tank (5), biofilter (1) is equipped with first filter unit (11), second filter unit (12) by the water inlet direction in proper order, be equipped with metalling (21), first zeolite layer (22), adsorbed layer (23), second zeolite layer (24), pebble layer (25) from top to bottom in biofilter (2), adsorbed layer (23) are hickory shell or iron and carbon granule or its combination.
2. The aquaculture sewage treatment device according to claim 1, wherein the thickness of the gravel layer (21) is 145-155mm, and the particle size of the gravel is 1-2 cm; the thickness of the first zeolite layer (22) is 145-155mm, and the particle size of the zeolite is 8-10 mm; the thickness of the adsorption layer (23) is 190-210mm, wherein the grain diameter of the pecan shell is 10-15mm, and the grain diameter of the iron-carbon particles is 45-50 mm; the thickness of the second zeolite layer (24) is 145-155mm, and the particle size of the zeolite is 8-10 mm; the thickness of the pebble layer (25) is 190-210mm, and the particle size of the pebbles is 50-80 mm.
3. The aquaculture wastewater treatment plant according to claim 1, wherein the first filter unit (11) is a fiber bundle filter stock and the second filter unit (12) is zeolite, and the zeolite has a particle size of 8-10 mm.
4. The aquaculture sewage treatment equipment according to claim 3, wherein the fiber bundle is an olive-shaped fiber floc, the olive shape has a length of 500-600mm and a middle width of 800mm, and the zeolite particle size of the second filtering unit (12) is 8-10 mm.
5. The aquaculture sewage treatment equipment according to claim 1, wherein the bioreactor (3) is provided with a horizontal stirring shaft (31), the stirring shaft (31) is provided with a plurality of support rods (32), the free ends of the support rods (32) are provided with helical blades (33), one side of the bioreactor (3) close to the water inlet is provided with a microbial degradation microbial inoculum inlet (34), and the stirring shaft (31) is driven by a motor (35) arranged on the outer side of the bioreactor (3).
6. The aquaculture wastewater treatment equipment according to claim 1, wherein a water distribution pipe (26) is arranged above the biological filter (2), and the water distribution pipe (26) is provided with water distribution holes.
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| CN201920463748.3U CN210030315U (en) | 2019-04-08 | 2019-04-08 | Aquaculture sewage treatment equipment |
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| CN201920463748.3U CN210030315U (en) | 2019-04-08 | 2019-04-08 | Aquaculture sewage treatment equipment |
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| CN210030315U true CN210030315U (en) | 2020-02-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116854236A (en) * | 2023-08-02 | 2023-10-10 | 广东省机械研究所有限公司 | Cultivation tail water treatment system and treatment method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116854236A (en) * | 2023-08-02 | 2023-10-10 | 广东省机械研究所有限公司 | Cultivation tail water treatment system and treatment method |
| CN116854236B (en) * | 2023-08-02 | 2024-02-20 | 广东省机械研究所有限公司 | Cultivation tail water treatment system and treatment method |
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