CN105417863A - Culturing recycled-water treatment system and process method thereof - Google Patents
Culturing recycled-water treatment system and process method thereof Download PDFInfo
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- CN105417863A CN105417863A CN201510867681.6A CN201510867681A CN105417863A CN 105417863 A CN105417863 A CN 105417863A CN 201510867681 A CN201510867681 A CN 201510867681A CN 105417863 A CN105417863 A CN 105417863A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/08—Aerobic processes using moving contact bodies
- C02F3/085—Fluidized beds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1205—Particular type of activated sludge processes
- C02F3/1221—Particular type of activated sludge processes comprising treatment of the recirculated sludge
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- 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
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention relates to a culturing recycled-water treatment system. The system comprises a combined precipitation facility, a three-phase internally circulating fluidized bed and an ozone purification device, wherein the inside of the combined precipitation facility is separated into three cavities by a first internal separator and a second internal separator; the front cavity is communicated with a culture pond by virtue of a connecting pipeline, a movable vertical pipe is inserted to the upper end of the connecting pipeline, the lower end of the connecting pipeline is connected with a plug, and the plug is subjected to first-step precipitation; culturing water spilled from the upper end of the movable vertical pipe is freely settled in the front cavity, and the front cavity is subjected to second-step precipitation; the bottom of the front cavity is communicated with the intermediate cavity by virtue of a water distribution pipe, the intermediate cavity is separated into an upper filter material layer and a lower water distribution structure layer, and the intermediate cavity is subjected to third-step precipitation; the rear cavity is subjected to primary water lifting by virtue of a submersible pump, and the water respectively enters the three-phase internally circulating fluidized bed and the ozone purification device; a draft tube is arranged in the three-phase internally circulating fluidized bed, and an air distribution uniform pipeline component is arranged under the draft tube; a cylindrical tank body is filled with a filter material; pure water drained from the liquid outlet flows back to the culture pond; and the pure water drained from the ozone purification device flows back to the culture pond.
Description
Technical field
The present invention relates to a kind of cultivation circular water treating system and processing method thereof, belong to cultivation circulating water treatment technology field.
Background technology
The industrial circulating water cultivating being utilized as feature with water circulation is that aquaculture batch production develops the state-of-the-art mode of production.It is compared with traditional breeding way, have do not restrict by external environment, economize on water, save land, the feature such as high-density is intensive, it is controlled to produce, zero release of pollutant, be the inexorable trend that aquaculture mode changes.
Industrial circulating water cultivating mode of production key problem in technology is circular water treating system.Typical recycling water treatment system is that the physical cleaning device of removing suspended substance combines the degraded biofiltration device of dissolved organic matter and oxygen-increasing device is master, with the integrated system that sterilizing unit, temperature adjustment etc. are auxiliary, it is a complex art relating to many technology such as water treatment technology, equipment technology, automatic control.
The higher structure of circular water treating system, running cost are the technical bottlenecks of restriction industrial circulating water cultivating mode of production further genralrlization application.Efficiently, the research and development of economic circulation water treatment system are important topics that aquatic science and technology worker faces.
Cultivate circular water treating system in prior art, physical cleaning device unit volume filtration efficiency is low, and construction cost is higher, and biological purification plant load is larger; Biological purification plant is for meeting certain residence time, and floor space is comparatively large, and biopurification mass transfer characteristic is poor, and processing efficiency is lower.
Summary of the invention
The technical issues that need to address of the present invention are: existing cultivation circular water treating system, and physical cleaning device unit volume filtration efficiency is low, and construction cost is higher, and biological purification plant load is larger; Biological purification plant is for meeting certain residence time, and floor space is comparatively large, and biopurification mass transfer characteristic is poor, and processing efficiency is lower.
The present invention takes following technical scheme:
A kind of cultivation circular water treating system, comprises built-up type deposition facility 1, three phase inner circulation fluidized bed 2, ozone purification device 3; Be divided into three cavitys by first, second internal partition 11a, 11b in described built-up type deposition facility 1, elevation of bottom is identical, and each cavity bottom all establishes water port; Ante-chamber is communicated with culturing pool by connecting tube 12, connecting tube upper end socket joint moves vertical tube 13, and lower end connects blocking 14, and described mobile vertical tube 13 upper end is lower than the culturing pool water surface, mobile vertical tube 13 length water level needed for culturing pool is determined, blocking 14 accepts the first step precipitation; From aquaculture water free setting in ante-chamber that mobile vertical tube 13 upper end is overflowed, ante-chamber accepts second step precipitation; Be communicated with intermediate cavity by water distribution pipe 16 bottom ante-chamber, intermediate cavity is divided into the filter material layer on upper strata and the water distribution structural sheet of lower floor, and filter material layer is made up of inclined tube 15, and the water distributing pore of the water distribution pipe 16 in water distribution structural sheet is downward, prevent throw out from falling in pipe, intermediate cavity accepts three-step precipitation; Back cavity is communicated with intermediate cavity by the second internal partition 11b top crest of weir, second internal partition 11b elevation of top is lower than the height of mobile vertical tube 13 upper end, the built-in submersible pump 17 of back cavity, carries out a water lift by submersible pump 17, enters three phase inner circulation fluidized bed 2 and ozone purification device 3 respectively; Described three phase inner circulation fluidized bed 2 top is high higher than culturing pool top mark, in cylindrical tank body structure.The built-in guide shell 21 of cavity, guide shell 21 and cylinder tank diameter are than 0.5, and guide shell 21 length compares 3-6 with cylinder tank diameter; Uniform air distribution conduit assembly 22 is provided with, gas speed 1-2cm/s below guide shell 21; Also be equipped with filtrate 23 in cylinder tank body, filtrate is that diameter is less than 4mm particulate, proportion 1.03 ~ 1.09t/m3, and filtrate volume and cylindrical tank body bulk are than being 5%-10%; Described cylinder tank body top is provided with liquid outlet higher than the position of guide shell 21, and described liquid outlet is higher than culturing pool liquid level, and the water purification of discharging through liquid outlet flows back into culturing pool; Described ozone purification device 3 is the ozone purification devices of the less energy-consumption carrying out ozone mixed dissolution with static mixer, and the water purification of discharging through ozone purification device 3 flows back into culturing pool.
Further, inclined tube 15 diameter 35-55mm, inclined tube 15 length 0.7-1m, 60 ° of oblique layouts.
Further, the second internal partition 11b elevation of top is lower than culturing pool top mark height 150-200mm.
A processing method for above-mentioned cultivation circular water treating system, is characterized in that:
Culturing pool sewage is overflowed by built-up type deposition facility 1 ante-chamber socket joint vertical tube through connecting tube, and free-falling enters ante-chamber cavity, period, and blocking 14 accepts the first step precipitation, and ante-chamber accepts second step precipitation;
The ante-chamber sewage that part suspended substance is removed in free setting evenly flows into intermediate cavity by water distribution pipe in middle chamber, flow through filter material layer from bottom to top, wastewater suspended substance is efficiently removed under perpendicular stream precipitation and filtrate dam dual function, and intermediate cavity accepts three-step precipitation;
After filter, water enters back cavity through crest of weir, by submersible pump in it the 17 extremely three phase inner circulation fluidized bed 2 of pump and ozone purification device 3 respectively; Built-up type deposition facility 1 hydraulic detention time 15-25min;
Built-up type deposition facility 1 part water accepted by three phase inner circulation fluidized bed 2, under the effect of uniform air distribution conduit assembly 22 aeration, current and biofilter material 23 outwards overflow from guide shell 21 top, water purification flows back to culturing pool from water port, hydraulic detention time 8-12min in three phase inner circulation fluidized bed 2;
Ozone purification device 3 accepts built-up type deposition facility 1 part water, under ozonization, and oxidation of organic compounds, sterilization, removal water colour, increase dissolved oxygen, water purification is back to culturing pool, hydraulic detention time 8-10min in ozone purification device 3;
The equal periodic exhaustion of settling.
Use the present invention to aquiculture sewerage process, result shows: SS clearance 58%, COD clearance 66%, water colour clearance 42%.
Beneficial effect of the present invention is:
1, according to the distribution of suspended substance different-grain diameter and deposition facility different qualities, utilize facility constructing technology, establish melt free setting, perpendicular stream precipitation, inclined tube/sloping plate deposition be integrated built-up type deposition facility.On ante-chamber connecting tube, socket joint vertical tube and blocking are arranged, both can flexible culturing pool water level, significantly improve again suspended substance free setting effect; Intermediate cavity is perpendicular stream precipitation, inclined tube/sloping plate deposition characteristic comprehensively.The free setting of aquaculture wastewater suspended substance experience, perpendicular stream precipitation, inclined tube/swash plate filtrate dam, and clearance significantly improves, and device unit volume filtration efficiency is high.
2, the three phase inner circulation fluidized bed of structural parameter and optimization of operating parameters is applied to aquaculture wastewater process.Three phase inner circulation fluidized bed structure is simple, fluid flowing is even, mass transfer characteristic is good, processing efficiency is high, has biomembrance process and activated sludge process advantage concurrently.As aquaculture wastewater biopurification link, three phase inner circulation fluidized bed is with its special performance efficient degradation organism, and plant area is little.
3, strengthening physical filters, and arranges high-performance biofiltration, and the ozone-oxidizing device of union less energy-consumption, in one, obtaining under good treatment effect prerequisite, effectively reduces system constructing and running cost.The present invention is applied to aquiculture sewerage process, result shows: SS clearance 52 ~ 64%, COD clearance 64 ~ 72%, water colour clearance 41 ~ 48%.
4, melt free setting by structure, perpendicular stream precipitates, inclined tube/swash plate is integrated built-up type deposition facility, solve the problem that physical cleaning device unit volume filtration efficiency is low, reduce device construction cost, and effectively alleviate biological purification plant load.
5, by using Three-phase internal circulation biological fluidized bed, and arrange rational technique parameter, solve biopurification for meeting certain residence time, the large problem of plant area, biopurification mass transfer characteristic is good, and processing efficiency is high.
6, filtered by strengthening physical, the process procedures such as high-performance biopurification are set, are obtaining under good water purifying effect prerequisite, reduce the higher structure of water treatment system, running cost.
Accompanying drawing explanation
Fig. 1 is that the present invention cultivates the total process flow sheet of circular water treating system.
Fig. 2 is the structural representation of built-up type deposition facility.
Fig. 3 is the structural representation of three phase inner circulation fluidized bed.
Fig. 4 is the partial enlarged drawing of Fig. 3.
In figure, 1. built-up type deposition facility, 2. three phase inner circulation fluidized bed, 3. ozone purification device, 11a. first internal partition, 11b. second internal partition, 12. connecting tubes, 13. move vertical tube, 14. blockings, 15. inclined tubes, 16. water distribution pipes, 17. submersible pumps, 21. guide shells, 22. uniform air distribution conduit assemblies, 23. filtrates.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further described.
See Fig. 1-Fig. 3:
1) be separated into three cavitys by first, second internal partition 11a, 11b in built-up type deposition facility 1, the high same culturing pool of each cavity pond top mark, elevation of bottom is identical, and each cavity bottom all establishes water port.Ante-chamber is communicated with culturing pool by connecting tube 12, the removable vertical tube 13 of connecting tube upper end socket joint, and lower end connects blocking 14.Mobile vertical tube length water level needed for culturing pool is determined; Intermediate cavity sets up two layers separately, and upper strata is filter material layer, and lower floor is water distribution structural sheet.Filter material layer is made up of inclined tube 15, inclined tube diameter 55mm, inclined tube length 1m, 60 ° of oblique layouts.Water distribution structural sheet arranges the even conduit assembly 16 of water distribution.Intermediate cavity is communicated with ante-chamber by water distribution pipe; Back cavity is communicated with intermediate cavity by its dividing plate top crest of weir, and dividing plate elevation of top is lower than culturing pool top mark height 150mm.The built-in submersible pump 17 of back cavity.
2) three phase inner circulation fluidized bed 2 top is higher than the high cylinder tank body of culturing pool top mark.The built-in guide shell 21 of cavity, guide shell and assembly dia than 0.5, guide shell length and assembly dia ratio (aspect ratio) 3.5; Be provided with gas distribution facility bottom guide shell, gas distribution facility is uniform air distribution conduit assembly 22, gas speed 1.5cm/s; Also be equipped with filtrate 23 in cavity, filtrate is diameter 3mm particulate, proportion 1.06t/m3, filtrate volume and cavity volume ratio (immobilized rate) 5%.
3) ozone purification device 3 carries out the ozone purification device of the less energy-consumption of ozone mixed dissolution with static mixer.
Culturing pool sewage is overflowed by built-up type deposition facility ante-chamber socket joint vertical tube through connecting tube, and free-falling enters ante-chamber cavity; The ante-chamber sewage that part suspended substance is removed in free setting evenly flows into intermediate cavity by water distribution pipe in middle chamber, flows through filter material layer from bottom to top, and wastewater suspended substance is efficiently removed under perpendicular stream precipitation and filtrate dam dual function; After filter, water enters back cavity through crest of weir, by pump extremely three phase inner circulation fluidized bed 2, the ozone purification device 3 respectively of water pump in it.Built-up type deposition facility 1 hydraulic detention time 20min.
Built-up type deposition facility 1 part water accepted by three phase inner circulation fluidized bed 2.Under biomembrance process and activated sludge process dual function, sewage dissolved organic matter is effectively degraded, and water purification is back to culturing pool.Hydraulic detention time 10min.
Ozone purification device accepts built-up type deposition facility part water.Under ozonization, oxidation of organic compounds, sterilization, removal water colour, increase dissolved oxygen, water purification is back to culturing pool.Hydraulic detention time 10min.
The equal periodic exhaustion of settling.
Use the present invention to aquiculture sewerage process, result shows: SS clearance 58%, COD clearance 66%, water colour clearance 42%.
Claims (4)
1. cultivate a circular water treating system, it is characterized in that:
Comprise built-up type deposition facility (1), three phase inner circulation fluidized bed (2), ozone purification device (3);
Be divided into three cavitys by first, second internal partition (11a, 11b) in described built-up type deposition facility (1), elevation of bottom is identical, and each cavity bottom all establishes water port; Ante-chamber is communicated with culturing pool by connecting tube (12), connecting tube upper end socket joint moves vertical tube (13), lower end connects blocking (14), described mobile vertical tube (13) upper end is lower than the culturing pool water surface, mobile vertical tube (13) length water level needed for culturing pool is determined, blocking (14) accepts the first step precipitation; Aquaculture water free setting in ante-chamber of overflowing from mobile vertical tube (13) upper end, ante-chamber accepts second step precipitation; Be communicated with intermediate cavity by water distribution pipe (16) bottom ante-chamber, intermediate cavity is divided into the filter material layer on upper strata and the water distribution structural sheet of lower floor, filter material layer is made up of inclined tube (15), the water distributing pore of the water distribution pipe (16) in water distribution structural sheet is downward, prevent throw out from falling in pipe, intermediate cavity accepts three-step precipitation; Back cavity is communicated with intermediate cavity by the second internal partition (11b) top crest of weir, second internal partition (11b) elevation of top is lower than the height of mobile vertical tube (13) upper end, the built-in submersible pump of back cavity (17), carry out a water lift by submersible pump (17), enter three phase inner circulation fluidized bed (2) and ozone purification device (3) respectively;
Described three phase inner circulation fluidized bed (2) top is high higher than culturing pool top mark, in cylindrical tank body structure, the built-in guide shell of cavity (21), guide shell (21) and cylinder tank diameter are than 0.5, and guide shell (21) length compares 3-6 with cylinder tank diameter; Guide shell (21) below is provided with uniform air distribution conduit assembly (22), gas speed 1-2cm/s; Also be equipped with filtrate (23) in cylinder tank body, filtrate is that diameter is less than 4mm particulate, proportion 1.03 ~ 1.09t/m3, and filtrate volume and cylindrical tank body bulk are than being 5%-10%; Described cylinder tank body top is provided with liquid outlet higher than the position of guide shell (21), and described liquid outlet is higher than culturing pool liquid level, and the water purification of discharging through liquid outlet flows back into culturing pool;
Described ozone purification device (3) is the ozone purification device of the less energy-consumption carrying out ozone mixed dissolution with static mixer, and the water purification of discharging through ozone purification device (3) flows back into culturing pool.
2. cultivate circular water treating system as claimed in claim 1, it is characterized in that: inclined tube (15) diameter 35-55mm, inclined tube (15) length 0.7-1m, 60 ° of oblique layouts.
3. cultivate circular water treating system as claimed in claim 1, it is characterized in that: the second internal partition (11b) elevation of top is lower than culturing pool top mark height 150-200mm.
4. a processing method for cultivation circular water treating system according to claim 1, is characterized in that:
Culturing pool sewage is overflowed by built-up type deposition facility (1) ante-chamber socket joint vertical tube through connecting tube, and free-falling enters ante-chamber cavity, period, and blocking (14) accepts the first step precipitation, and ante-chamber accepts second step precipitation;
The ante-chamber sewage that part suspended substance is removed in free setting evenly flows into intermediate cavity by cloth water assembly in middle chamber, flow through filter material layer from bottom to top, wastewater suspended substance is efficiently removed under perpendicular stream precipitation and filtrate dam dual function, and intermediate cavity accepts three-step precipitation;
After filter, water enters back cavity through crest of weir, by submersible pump in it (17) pump extremely three phase inner circulation fluidized bed (2) and ozone purification device (3) respectively; Built-up type deposition facility (1) hydraulic detention time 15-25min;
Built-up type deposition facility (1) part water accepted by three phase inner circulation fluidized bed (2), under the effect of uniform air distribution conduit assembly (22) aeration, current and biofilter material (23) outwards overflow from guide shell (21) top, water purification flows back to culturing pool from water port, the interior hydraulic detention time 8-12min of three phase inner circulation fluidized bed (2);
Ozone purification device (3) accepts built-up type deposition facility (1) part water, under ozonization, oxidation of organic compounds, sterilization, removal water colour, increase dissolved oxygen, water purification is back to culturing pool, the interior hydraulic detention time 8-10min of ozone purification device (3);
The equal periodic exhaustion of settling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510867681.6A CN105417863B (en) | 2015-12-01 | 2015-12-01 | Cultivate circular water treating system and its process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510867681.6A CN105417863B (en) | 2015-12-01 | 2015-12-01 | Cultivate circular water treating system and its process |
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| Publication Number | Publication Date |
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| CN105417863A true CN105417863A (en) | 2016-03-23 |
| CN105417863B CN105417863B (en) | 2017-09-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112642218A (en) * | 2021-01-05 | 2021-04-13 | 天津市润达金源水务有限公司 | Device and method for efficiently reducing inlet water turbidity |
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| CN105417863B (en) | 2017-09-01 |
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