CN100558659C - The method of circulating water culture system water treatment - Google Patents
The method of circulating water culture system water treatment Download PDFInfo
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- CN100558659C CN100558659C CNB2006101194921A CN200610119492A CN100558659C CN 100558659 C CN100558659 C CN 100558659C CN B2006101194921 A CNB2006101194921 A CN B2006101194921A CN 200610119492 A CN200610119492 A CN 200610119492A CN 100558659 C CN100558659 C CN 100558659C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The method of circulating water culture system water treatment relates to the breed water treatment.Need to solve the integrated problem of high-density breeding water treatment device.The present invention adopts filling type biofloculation precipitation, biofilm filtration, water conditioning regulation and control, it is characterized in that filling type biofloculation precipitation unit top 2/3 filled polyolefin class and polymeric amide compound packing layer remove organism, suspended substance, nitrogen and the phosphorus of culturing water, bottom 1/3 is a mud collection area; Top, biofilm filtration unit 2/3 is filled by poly--N-alkyl-4-vinylpyridine-halogenide and is made the deep purifying that the filter packing layer realizes culturing water, bottom 1/3 is little oxygen aeration/dirt colleceting area, and mud enters filling type biofloculation precipitation unit mud collection area from the biofilm filtration unit bottom; Basicity balance and the ion compensation that is realized cultivation water by clinoptilolite, vermiculite, shale, Wingdale blended packing layer filled in water conditioning regulation and control unit.The present invention is used to culture the materialization/biochemical treatment of water integral type.
Description
Technical field:
The present invention relates to the aquaculture water treatment method.
Background technology
In the circulating water culture system, utilize physics, biology, chemical process to realize that aquaculture water purifies and replys and utilize, include solid-liquid separation, biofiltration, foam separation clean unit in its technology, but by existing unitary assembling of purification of water quality and configuration, be difficult to reduce water treatment device scale and system's operation energy consumption, the integrated degree of unit for treating water is difficult to improve.
At present, Chemical and Biological Flocculation Process, aerobe flocculation absorbing process, biofloculation-oxidation processing technique obtain application to a certain degree in fields such as town domestic sewage, Industrial Wastewater Treatment.Its main mechanism of action is to utilize the flocculation kinetics principle, by introducing the cotton-shaped particulate matter of suitably big particle diameter, utilizes the flocculation adsorption of high surface area to the fine particle material, improves the settling velocity of flco, reduces the sedimentation time of sewage; Simultaneously, the principle that flco condenses by contact again, dissolved matter in the planar water and suspended solids, the removal effect of raising pollutent.These technologies are by introducing activated sludge particles in biofloculation absorption reaction pond, realize the biofloculation adsorption precipitation of organism and suspended particulate, but these arts demand mud intermediate sedimentation ponds, sludge activation pond and mud reflux, and unit scale is huge.
On the other hand, because the organic loading of high-density breeding water is relatively low, adopt the difficulty of active sludge formula biofloculation art breading breed water bigger, fluctuation of service.Simultaneously, in actual the applying of high-density circulating water culture system, need reduce facility scale, cost of water treatment and running cost significantly.Therefore, develop integrated materialization/biochemistry and culture that water treatment device is cultured cost of water treatment to reducing, to reduce the water processing establishment scale significant.
Summary of the invention
The objective of the invention is to culture in order to solve the prior art middle-high density that water treatment efficiency is low, processing cost is high, handle that energy consumption is big, the water treatment device configuration is complicated and influence the problem of integrated degree, a kind of method of efficient, economical and practical circulating water culture system water treatment is provided.
Present method adopts filling type biofloculation precipitation, biofilm filtration, the water conditioning regulation and control, it is characterized in that pending breed water flows into from the lower water inlet of filling type biofloculation precipitation unit, the high-density 3 D elastic filler layer of being made by polyolefins and polyamide compoiste material is filled on top 2/3 in the filling type biofloculation precipitation unit, culture the water high-density 3 D elastic filler layer of upwards flowing through, hydraulic detention time is between 20～60min, adsorb by biofloculation, synchronous nitration and denitrification, physics is held back culturing the organism in the water, suspended substance, nitrogen and phosphorus are removed, bottom 1/3 in the filling type biofloculation precipitation unit is a point end shape mud collection area, the mud of accumulation is discharged from the sewage draining exit of filling type biofloculation precipitation unit, breed water after the processing flows into the biofilm filtration unit from the top water outlet of filling type biofloculation precipitation unit, fill by poly--arranged vertical non-woven fabrics filter packing layer that N-alkyl-4-vinylpyridine-halogenide is made on top 2/3 in the biofilm filtration unit, culture the water non-woven fabrics filter packing layer of flowing through downwards, hydraulic detention time is between 30～120min, utilize the high-specific surface area of non-woven fabrics, the microbial immobilized effect that positive charge absorption is caused, form the high-activity biological film, carry out further nitration denitrification processing to culturing water, the excessive suction phosphorus of polyP bacteria is handled, realize culturing the deep purifying of water, bottom 1/3 in the biofilm filtration unit is the little oxygen aeration/dirt colleceting area of point end shape, carry out little oxygen aeration and aeration back flushing according to the water quality situation, the mud of accumulation enters the shape mud collection area of the sharp end of filling type biofloculation precipitation unit from the unitary bottom blow-down mouth of biofilm filtration, this blowdown action is by the unitary plug-in blow-off pipe control of biofilm filtration, when the needs blowdown, extract described plug-in blow-off pipe, breed water after the processing flows into water conditioning regulation and control unit from the top of the little oxygen aeration/dirt colleceting area of biofilm filtration unitary point end shape, the water conditioning regulation and control are filled by clinoptilolite in the unit, vermiculite, shale, Wingdale is 4: 2: 2 by volume: the mineral filler layer of 2 ratio uniform mixing preparation, culture the water mineral filler layer of upwards flowing through, hydraulic detention time is at 30～120min, utilize the trace element of mineral filler layer to discharge the compensation of compensation and basicity automatically, realize the basicity balance and the ion compensation of cultivation water, the breed water after the processing is regulated and control unitary clear water relief outlet from water conditioning and is flowed out.
The present invention is organically combined biofloculation precipitation, biofilm filtration, water conditioning regulation and control, utilizes the biofloculation adsorption of microorganism to remove organic pollution materials and suspended substance fast, utilizes the microbial immobilized effect of non-woven fabrics to set up the high-activity biological film, utilizes the trace element of mineral filler to discharge the ionic equilibrium that compensation mechanism realizes culturing water automatically; Compare with independent biofloculation precipitation process, independent microbial film processing, biofloculation-oxide treatment technology, present method have adaptive faculty strong, to the clearance height of organism and suspended substance, denitrogenation dephosphorizing, initial cost is economized, operation energy consumption is low outstanding effect simultaneously, and can utilize little aeration process to optimize the unitary operational conditions of biofilm filtration, have the advantage of stable effluent quality.
Description of drawings
Accompanying drawing is the synoptic diagram of the method for circulating water culture system water treatment of the present invention.
Embodiment
Implement the method (seeing accompanying drawing) of circulating water culture system water treatment, at first pending breed water is filled it up with filling type biofloculation precipitation unit 2, add active sludge then with strong absorption and flocculation ability through domestication, sludge concentration is 2g/L, leave standstill more than about 1d, after treating the success of high-density 3 D elastic filler layer 3 biofilm, promptly begin normal water inlet; Pending breed water directly flows into filling type biofloculation precipitation unit 2 from lower water inlet 1, culture the water high-density 3 D elastic filler layer 3 of upwards flowing through, hydraulic detention time is 60min, dissolved oxygen concentration is lower than 0.5mg/L, holds back by biomembranous biofloculation absorption, synchronous nitration and denitrification, physics organism, suspended substance, nitrogen and the phosphorus of culturing in the water are removed; In filling type biofloculation precipitation unit, at hypoxia condition (during DO＜0.5mg/L), bacterium absorbs dissolved matter and is translated into tenuigenin and storage material, some dissolved matter is degraded in cell, bacterium is bred, by extracellular enzyme pollutent is hydrolyzed and produces polymer extracellular polymeric-" microbial floc matter ", microbial floc matter makes colloid and suspended substance take off steady and assembles, simultaneously, biological adsorption also can be carried out net to the suspended substance in the water, colloidal solid and dissolved matter and catches, filters, adsorbs and absorb; Form a large amount of microorganism flcos like this on filler, because the difference of the inside and outside microenvironment of microorganism flco has realized the synchronous nitration and denitrification effect, biological floe also can be held back by physics, assimilation and polyP bacteria excess are inhaled the removal that the phosphorus approach realizes phosphorus;
Breed water after filling type biofloculation precipitation unit 2 is handled flows into biofilm filtration unit 7 from top water outlet 6, culture the water non-woven fabrics filter packing layer 8 of flowing through downwards, hydraulic detention time is 120min, dissolved oxygen concentration is greater than 2mg/L, utilize high-specific surface area, the positive charge of non-woven fabrics to adsorb the microbial immobilized effect that is caused and the high-activity biological film that forms, carry out further nitration denitrification processing, the excessive suction phosphorus processing of polyP bacteria to culturing water, realize culturing the deep purifying of water; In the biofilm filtration unit, by little aeration mode, aquaculture water is carried out reoxygenation, form the envrionment conditions of dissolved oxygen greater than 2mg/L, utilize the high-activity biological film of the microbial immobilized effect foundation of non-woven fabrics that water is carried out deep purifying;
Breed water after biofilm filtration unit 7 is handled flows into water conditioning regulation and control unit 12 from the top of the little oxygen aeration/dirt colleceting area 10 of shape of the sharp end of biofilm filtration unit 7, culture the water mineral filler layer 13 of upwards flowing through, hydraulic detention time 120min, utilize the trace element of clinoptilolite, vermiculite, shale, limestone mine material packing layer to discharge the compensation of compensation and basicity automatically, realize the basicity balance and the ion compensation of cultivation water; Breed water after the processing flows out from clear water relief outlet 14, can be recycled the water cultivating system and reuse.
According to influent quality feature and processing requirements, can be in point end shape little oxygen aeration/dirt colleceting area 10 little oxygen aeration, biofilm filtration unit 7 is moved by the aeration reactor mode.When needs blowdown mud, stop into water, the mud that will be accumulated in earlier in the point end shape mud collection area 4 is discharged from sewage draining exit 5, extracts plug-in blow-off pipe 9 then, by bottom blow-down mouth 11 mud in the little oxygen aeration/dirt colleceting area 10 of point end shape is entered point end shape mud collection area 4, discharge by sewage draining exit 5 again.
The following table institute column data measured result that to be present method purify cyclic culture water shows that present method removes suspended particulate and the denitrification effect preferably in the cyclic culture water effectively.
| Water-quality guideline | SS | COD Cr | NH 4 +-N | NO 2 --N | NO 3 --N | TN | PO 4 --P | The pH value |
| Influent concentration (mg/L) | 29.4 | 20.2 | 2.81 | 0.34 | 7.63 | 17.42 | 0.39 | 7.21 |
| Go out water concentration (mg/L) | 4.3 | 8.4 | 0.12 | 0.01 | 2.57 | 7.04 | 0.25 | 7.36 |
| Average removal rate (%) | 85.4 | 58.4 | 95.7 | 97.1 | 66.3 | 59.6 | 35.9 | - |
Claims (2)
1, the method of circulating water culture system water treatment, adopt filling type biofloculation precipitation, biofilm filtration, the water conditioning regulation and control, it is characterized in that culturing water directly flows into from filling type biofloculation precipitation unit lower water inlet, the high-density 3 D elastic filler layer of being made by polyolefins and polyamide compoiste material is filled on top 2/3 in the filling type biofloculation precipitation unit, culture the water packing layer of upwards flowing through, hydraulic detention time 20～60min, adsorb by biofloculation, synchronous nitration and denitrification, physics is held back culturing the organism in the water, suspended substance, nitrogen and phosphorus are removed, bottom 1/3 in the filling type biofloculation precipitation unit is a point end shape mud collection area, mud is discharged from the sewage draining exit of filling type biofloculation precipitation unit, breed water after the processing flows into the biofilm filtration unit from the top water outlet of filling type biofloculation precipitation unit, fill by poly--arranged vertical non-woven fabrics filter packing layer that N-alkyl-4-vinylpyridine-halogenide is made on top 2/3 in the biofilm filtration unit, culture the water non-woven fabrics filter packing layer of flowing through downwards, hydraulic detention time 30～120min, utilize the high-specific surface area of non-woven fabrics, the microbial immobilized effect that positive charge absorption is caused, form the high-activity biological film, handle culturing the further nitration denitrification of water, the excessive suction phosphorus of polyP bacteria is handled, realize culturing the deep purifying of water, bottom 1/3 in the biofilm filtration unit is the little oxygen aeration/dirt colleceting area of point end shape, mud enters the shape mud collection area of the sharp end of filling type biofloculation precipitation unit from biofilm filtration unit bottom sewage draining exit, during blowdown, extract the unitary plug-in blow-off pipe of biofilm filtration, breed water after the processing flows into water conditioning regulation and control unit from the top of the little oxygen aeration/dirt colleceting area of biofilm filtration unitary point end shape, the water conditioning regulation and control are filled by clinoptilolite in the unit, vermiculite, shale, Wingdale 4: 2: 2 by volume: 2 mixed uniformly mineral filler layers, culture the water mineral filler layer of upwards flowing through, hydraulic detention time 30～120min, the trace element of mineral filler layer discharges basicity balance and the ion compensation that the compensation of compensation and basicity realizes cultivation water automatically, and the breed water after the processing is regulated and control unitary clear water relief outlet from water conditioning and flowed out.
2, the method for circulating water culture system water treatment according to claim 1 is characterized in that it is the 2g/L active sludge that filling type biofloculation precipitation unit adds concentration, leaves standstill more than the 1d, treats to begin normal water inlet after the success of high-density 3 D elastic filler layer biofilm.
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| CNB2006101194921A CN100558659C (en) | 2006-12-12 | 2006-12-12 | The method of circulating water culture system water treatment |
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| CNB2006101194921A CN100558659C (en) | 2006-12-12 | 2006-12-12 | The method of circulating water culture system water treatment |
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| CN100558659C true CN100558659C (en) | 2009-11-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102090353B (en) * | 2009-12-14 | 2012-09-26 | 上海海洋大学 | Large-volume three-dimensional circulating aquaculture system |
| TWI613961B (en) * | 2013-04-18 | 2018-02-11 | Kuo Hsing Chung | Bubble separator for circulating water system |
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| CN101874477B (en) * | 2009-12-02 | 2012-05-30 | 史建全 | Greenhouse piscicultural device with water biological purification function in high-cold area |
| CN101774686B (en) * | 2010-04-02 | 2011-03-30 | 孟翔麟 | Biological contact oxidation pond for recirculating aquaculture system |
| CN102336492A (en) * | 2011-08-26 | 2012-02-01 | 国家海洋局天津海水淡化与综合利用研究所 | Membrane process culture seawater treatment method and treatment system thereof |
| CN103058385B (en) * | 2011-10-20 | 2014-05-21 | 中国水产科学研究院渔业机械仪器研究所 | Process for treatment of high density aquaculture sewage |
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| CN102960295B (en) * | 2012-11-17 | 2014-03-12 | 中国水产科学研究院渔业机械仪器研究所 | Process flow of water circulation of culture pond |
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| CN105994028A (en) * | 2016-05-16 | 2016-10-12 | 重庆新陆农业开发有限公司 | Recirculating aquaculture method for Koi |
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| CN109368812A (en) * | 2018-11-21 | 2019-02-22 | 福建省农业科学院农业质量标准与检测技术研究所 | A kind of aquiculture sewerage immobilized microorganism purification circulating device and purification method |
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| CN111096259A (en) * | 2019-12-24 | 2020-05-05 | 天津海友佳音生物科技股份有限公司 | Method and device for breeding shrimps by adopting fully-closed circulating water |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102090353B (en) * | 2009-12-14 | 2012-09-26 | 上海海洋大学 | Large-volume three-dimensional circulating aquaculture system |
| TWI613961B (en) * | 2013-04-18 | 2018-02-11 | Kuo Hsing Chung | Bubble separator for circulating water system |
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| CN101200337A (en) | 2008-06-18 |
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Owner name: SHANGHAI OCEAN UNIVERSITY Free format text: FORMER NAME: SHANGHAI FISHERIES UNIVERSITY |
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Address after: No. 999, Huan Cheng Ring Road, Lingang New Town, Shanghai Patentee after: Shanghai Maritime University Address before: No. 334, military road, Shanghai, Yangpu District Patentee before: Shanghai Ocean University |
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Granted publication date: 20091111 Termination date: 20101212 |