CN104030530B - The former enhanced water pretreatment unit in a kind of micro-polluted drinking water water source - Google Patents
The former enhanced water pretreatment unit in a kind of micro-polluted drinking water water source Download PDFInfo
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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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Abstract
The invention discloses the former enhanced water pretreatment unit in a kind of micro-polluted drinking water water source, described device is integral type device, and described device comprises water inlet system, ramp type precipitation process pond, micro-nano air supporting oxygenation treating pond, biological contact oxidization treatment pond and artificial dielectric adsorption treatment pond.The former enhanced water pretreatment unit in the water source of micro-polluted drinking water disclosed in the present invention is without the need to adding coagulated agent, the precipitation of the suspended particle not easily removed can be accelerated, micro/nano level bubble is while playing air supporting effect, significantly improve the dissolved oxygen content be subject to processing in water, aerobe film activity is improved.Single unit system can modularization run, and has that molding time is short, the feature of good purification, applied range, can be used for the aspect such as pre-treatment of the strenuous primary treatment of micropollutant water, the former Ecology cleaning project in drinking water source.
Description
Technical field
The present invention relates to field of sewage treatment, be specifically related to the former enhanced water pretreatment unit in a kind of integral type micro-polluted drinking water water source.
Background technology
Along with Chinese society expanding economy, various places water contamination accident presents multiple situation, all there is the micro-pollution problem of former water in many river channel type or storehouse, lake type waterhead area, part water-quality guideline can not reach the water quality requirement as drinking water sources water in " Environmental Quality Standard of Surface Water " (GB3838-2002).Carry out pre-treatment to the former water of micro polluted drinking water resources, the preliminary pollution substance removed in water, can alleviate the burden of conventional processing or follow-up ecological purification process, reduces the added amount of chemical of water factory, thus plays the effect improving drinking water quality.
In the preconditioning technique field of sewage, current widely used technology mainly can be divided into physical treatment, chemical treatment, biological treatment.Physical treatment mainly removes suspension particulate matter by measures such as aeration, interception or change water body hydrologic conditions; Chemical treatment mainly by adding flocculation or pharmacy response, thus is separated the pollution substance removing solvability or colloidality; Biological treatment, mainly by the assimilation of microorganism, absorbs the nutrient salts in decomposition water body or organism.But micropollutant water has the features such as sediment grain size is less and free settling, organic contamination index and nutrition class index slightly do not exceed standard, algae content is more usually.Traditional physics and chemical process operate with the requirement of management higher, and especially running cost is very high, and the pre-treatment being applied to micropollutant water has significant limitation.
Biological contact oxidation process is widely used aerobic biological process for treating sewage in recent years, and it is a large amount of aerobic microbiologicals be attached on carrier or filler is master, has the advantage of activated sludge process and biomembrance process concurrently.But in micropollutant water not the tiny sand grain of free settling and algae be very easily attached to carrier surface, thus have a strong impact on the effect of carrier biofilm.In addition, in traditional biological contact oxidation process, requisite oxygen is supplied by blast aeration, larger blast aeration bubble easily impacts microbial film on the one hand and causes biofilm detachment, and its dissolved oxygen efficiency is low on the other hand, cannot inspire the best purifying water effect of aerobic microbiological.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of integral type strenuous primary treatment device for the former water in micro-polluted drinking water water source, purifying water effect in prior art be not good to overcome, device operation and complex management and the higher defect of cost of disposing of sewage.
To achieve these goals or other objects, the present invention is achieved by the following technical solutions.
The former enhanced water pretreatment unit in a kind of micro-polluted drinking water water source, it is characterized in that, described device is integral type device, and described device comprises water inlet system, ramp type precipitation process pond, micro-nano air supporting oxygenation treating pond, biological contact oxidization treatment pond and artificial dielectric adsorption treatment pond; Described water inlet system is connected with described ramp type precipitation process pond side bottom, first water outlet in described ramp type precipitation process pond is communicated with the first water-in of described micro-nano air supporting oxygenation treating pond, second water outlet of described micro-nano air supporting oxygenation treating pond is communicated with second water-in in described biological contact oxidization treatment pond, and the 3rd water outlet in described biological contact oxidization treatment pond is communicated with the 3rd water-in in described artificial dielectric adsorption treatment pond; Described first water outlet is located at the side bottom in described ramp type precipitation process pond; Described first water-in is located at the side bottom of described micro-nano air supporting oxygenation treating pond; Described second water outlet is located at the side roof part of described micro-nano air supporting oxygenation treating pond; Described second water-in is located at the side roof part in described biological contact oxidization treatment pond.
Preferably, described water inlet system comprises pumping plant and flow regulation device.
Preferably, described ramp type precipitation process pond is provided with horizontal inflow direction is the multiple tracks swash plate of 35 ° ~ 45 ° of angles; The bottom in described ramp type precipitation process pond is provided with the settling chamber large with described multiple tracks swash plate shadow area etc.
More preferably, described multiple tracks swash plate is parallel multiple tracks swash plate.
Preferably, described ramp type precipitation process pond is provided with between described multiple tracks swash plate and described first water outlet is fixed on the first baffle plate bottom ramp type precipitation process pond and vertical with horizontal inflow direction, and the top of described first baffle plate is higher than described first water outlet top and lower than the top of described multiple tracks swash plate.
Preferably, described micro-nano air supporting oxygenation treating pond comprises micro-nano bubble generator, mixing wastewater with air groove, dissolved air flotation groove and effluent recycling groove; Described mixing wastewater with air groove, dissolved air flotation groove and effluent recycling groove are connected successively, and described mixing wastewater with air groove is communicated with at side roof part with described dissolved air flotation groove; Described dissolved air flotation groove is communicated with at side bottom with described effluent recycling groove; Described micro-nano bubble generator comprises pressured air-dissolving device, reflux and micro-nano bubble releasing device, and described micro-nano bubble releasing device is positioned at the bottom of described mixing wastewater with air groove; Described reflux is located at the middle part of described effluent recycling groove.
Micro-nano bubble releasing device described in the present invention is prior art.Wherein, the water outlet of described reflux is connected with the water inlet conduit of pressured air-dissolving device; The water outlet of described pressured air-dissolving device is connected with the water inlet conduit of described micro-nano bubble releasing device.Described pressured air-dissolving device is also provided with air pump, for sucking air.
More preferably, third gear plate is provided with between described mixing wastewater with air groove and described dissolved air flotation groove; Fourth gear plate is provided with between described dissolved air flotation groove and described effluent recycling groove.
The first baffle plate described in the present invention, the second plate washer, third gear plate and fourth gear plate are all perpendicular to horizontal inflow direction.These baffle plates are used for each treatment unit to be separated into connect multiple unit, and for changing flow direction.
Preferably, the length of described mixing wastewater with air groove, dissolved air flotation groove and effluent recycling groove accounts for 10 ~ 15%, 75 ~ 85% and 5 ~ 10% of the total length of described micro-nano air supporting oxygenation treating pond respectively.
Preferably, the top of described dissolved air flotation groove is provided with and strains water device.
Preferably, described biological contact oxidization treatment pond is provided with biological rope and carbon fibre successively along horizontal inflow direction.
Preferably, the cumulative volume of described biological rope and described carbon fibre accounts for described biological contact oxidization treatment pond volume more than 80%, and the volume ratio between described biological rope and described carbon fibre is 2 ~ 4:1.
Preferably, be provided with hanger in described biological contact oxidization treatment pond, one end of described biological rope and described carbon fibre is hung on described hanger, and the other end of described biological rope and described carbon fibre is provided with counterweight.
Preferably, described artificial dielectric adsorption treatment pond is provided with the multiple tracks water-permeable geotextile vertical with horizontal direction.
Preferably, described multiple tracks water-permeable geotextile is 80 ~ 150 object polyethylene gauze or 100 ~ 200g/m
2polypropylene non-woven geotextile.
Preferably, the former water in described micro-polluted drinking water water source residence time in ramp type precipitation process pond, micro-nano air supporting oxygenation treating pond, biological contact oxidization treatment pond and artificial dielectric adsorption treatment pond is respectively 20 ~ 30min, 10 ~ 20min, 90 ~ 120min and 5 ~ 10min.
The former enhanced water pretreatment unit in the water source of micro-polluted drinking water disclosed in the present invention is without the need to adding coagulated agent, the precipitation of the suspended particle not easily removed can be accelerated, micro/nano level bubble is while playing air supporting effect, significantly improve the dissolved oxygen content be subject to processing in water, aerobe film activity is improved.Single unit system can modularization run, and has that molding time is short, the feature of good purification, applied range, can be used for the aspect such as pre-treatment of the strenuous primary treatment of micropollutant water, the former Ecology cleaning project in drinking water source.Various processes has following functions and advantage:
(1) ramp type precipitation process pond:
1. by reduction precipitation distance, accelerate the natural sedimentation process of larger suspended particle in the former water of micro polluted drinking water resources, thus shorten the hydraulic detention time of natural sedimentation, preliminary reduction Suspended Matter in Water SS content, improves daf efficiency, reduces air supporting energy consumption;
2. concentrate the bed mud being deposited on settling chamber to be convenient to unified collection to remove.
(2) micro-nano air supporting oxygenation treating pond:
1. diameter can be produced at other bubble of micro/nano level, gas residence time of ducking in drink is elongated, thus increase duration of contact with suspended substance, bubble and suspended substance adhesive efficiency significantly improve, and density in the former water of micro polluted drinking water resources and the larger dissolved organic matter of the close molecule of water, algae and surfactivity are taken away in air supporting of can rising;
2. compared with traditional blast aeration, contact area and the duration of contact of air and water body can be increased, when equal energy consumption, there is better oxygen transfer efficiency, significantly increase Dissolved Oxygen in Water content;
3., when not adding coagulated agent, violent mixing wastewater with air process can make the pollution substance in colloidal state in the former water of micro polluted drinking water resources de-steady;
(3) biological contact oxidization treatment pond:
The biologic packing material of different physical aspect can be multiple aerobic microbiological provides big area attaching surface, and the bubble of the micro/nano level in water body can be caught, increase the impellent that shifts in microbial film of oxygen and to depth of penetration in microbial film, biomembrane activity is improved, active biomass increases, improve the degradation rate of COD, BOD, remove the nutrient salts such as nitrogen phosphorus simultaneously.
(4) artificial dielectric adsorption treatment unit cells: Transverse to the flow direction is provided with multiple tracks water-permeable geotextile, other suspended particle in the microbial film that can filter packing come off, algae and water, prevent biofilm detachment from causing water quality abnormal, ensure out water clarity.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of apparatus of the present invention;
Fig. 2 is the cross-sectional view of apparatus of the present invention.
In Fig. 1 and Fig. 2, Reference numeral is as follows:
1 is water inlet system;
11 is pumping plant;
12 is flow regulation device;
2 is ramp type precipitation process pond;
21 is multiple tracks swash plate;
22 is settling tank;
23 is the first baffle plate;
24 is fluidised form regulating tank;
25 is second baffle;
3 is micro-nano air supporting oxygenation treating pond;
31 is micro-nano bubble generator;
32 is mixing wastewater with air groove;
33 is dissolved air flotation groove;
34 is effluent recycling groove;
35 is pressured air-dissolving device;
36 is reflux;
37 is micro-nano bubble releasing device;
38 is third gear plate;
39 is fourth gear plate;
301 is dissolved air water;
302 for straining water device;
303 is fifth gear plate;
4 is bio-contact oxidation treating pond;
41 is biological rope;
42 is carbon fibre;
5 is artificial media adsorbs treating pond;
51 water-permeable geotextiles;
6 is micro-polluted drinking water water source Yuan Shui.
Embodiment
By particular specific embodiment, embodiments of the present invention are described below, person skilled in the art scholar the content disclosed by this specification sheets can understand other advantages of the present invention and effect easily.
Refer to Fig. 1 to Fig. 2.Notice, structure, ratio, size etc. that this specification sheets institute accompanying drawings illustrates, content all only in order to coordinate specification sheets to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the present invention, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionlity or size, do not affecting under effect that the present invention can produce and the object that can reach, still all should drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, quote in this specification sheets as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the present invention.
In Fig. 1, direction is water (flow) direction, as shown in Figure 1, the invention provides the strenuous primary treatment device of the former water of a kind of integral type micro polluted drinking water resources, the former water in micro-polluted drinking water water source 6 is passed through successively: water inlet system 1, ramp type precipitation process pond 2, micro-nano air supporting oxygenation pond 3, biological contact oxidization treatment pond 4, artificial dielectric adsorption treatment pond 5.
The former water 6 in described micro-polluted drinking water water source is 20 ~ 30 minutes in the residence time in ramp type precipitation process pond 2; The former water of described micro polluted drinking water resources 6 is 10 ~ 20 minutes in the residence time of micro-nano air supporting oxygenation treating pond 3; The former water 6 in described micro-polluted drinking water water source is 90 ~ 120 minutes in the residence time in biological contact oxidization treatment pond 4; The former water 6 of described micro polluted drinking water resources is 5 ~ 10 minutes in the residence time in artificial dielectric adsorption treatment pond 5.There is important impact the residence time that the former water of micro polluted drinking water resources 6 manages pond throughout on decontamination effect improving.If hydraulic detention time is long, then the bubbles volume produced in micro-nano air supporting oxygenation treating pond 3 can reduce, and exhausts at biological contact oxidization treatment pond 4 Middle nutrition material the deterioration easily causing treatment effect, and then affects the treatment effect of device entirety; If hydraulic detention time is too short, then in ramp type precipitation process pond 2, water body recovery technology matter can not get abundant precipitation, pneumatically supported poor effect in micro-nano air supporting oxygenation treating pond 3, in biological contact oxidization treatment pond 4, pollution substance can't be received and absorb decomposition fully, can cause process result degrades equally.Former for micro polluted drinking water resources water 6 is managed hydraulic detention time in pond and is controlled at midrange by the present invention throughout, and bulk treatment effect is better.
As shown in Figure 2, invention provides a kind of micro-polluted drinking water water source former enhanced water pretreatment unit, described device is integral type device, and described device comprises water inlet system 1, ramp type precipitation process pond 2, micro-nano air supporting oxygenation treating pond 3, biological contact oxidization treatment pond 4 and artificial dielectric adsorption treatment pond 5; Described water inlet system 1 is connected with described ramp type precipitation process pond 2 side bottom, first water outlet in described ramp type precipitation process pond 2 is communicated with the first water-in of described micro-nano air supporting oxygenation treating pond 3, second water outlet of described micro-nano air supporting oxygenation treating pond 3 is communicated with second water-in in described biological contact oxidization treatment pond 4, and the 3rd water outlet in described biological contact oxidization treatment pond 4 is communicated with the 3rd water-in in described artificial dielectric adsorption treatment pond 5; Described first water outlet is located at the side bottom in described ramp type precipitation process pond 2; Described first water-in is located at the side bottom of described micro-nano air supporting oxygenation treating pond 3; Described second water outlet is located at the side roof part of described micro-nano air supporting oxygenation treating pond 3; Described second water-in is located at the side roof part in described biological contact oxidization treatment pond 4.
Particularly, described water inlet system 1 comprises pumping plant 11 and flow regulation device 12.Flooding quantity can be regulated by adjust flux setting device 12 according to water quality situation.
Particularly, described ramp type precipitation process pond 2 is provided with horizontal inflow direction is the multiple tracks swash plate 21 of 35 ° of angles; The bottom in described ramp type precipitation process pond 2 is provided with the settling chamber 22 large with described multiple tracks swash plate 21 shadow area etc.
More specifically, described multiple tracks swash plate 21 is parallel multiple tracks swash plate.Particularly, described ramp type precipitation process pond is provided with between described multiple tracks swash plate 21 and described first water outlet is fixed on the first baffle plate 23 bottom ramp type precipitation process pond and vertical with horizontal inflow direction, and the top of described first baffle plate 23 is higher than described first water outlet top and lower than the top of described multiple tracks swash plate 21.
Particularly, described ramp type precipitation process pond is separated out a cavity by described first baffle plate 23, is fluidised form regulating tank 24.
Water, by the Clearance Flow process between multiple tracks swash plate 21, is not easily deposited on swash plate 21 surface by the molecule of dissolved air flotation or through de-steady coacervate, and by action of gravity landing in bottom settlings room 22; Water outlet enters fluidised form regulating tank 24 from the first baffle plate 23 top overflow of ramp type precipitation process pond 2 major trough end, and enters micro-nano air supporting oxygenation treating pond 3 by second baffle 25 bottom of fluidised form regulating tank 24 end.
Particularly, described micro-nano air supporting oxygenation treating pond 3 comprises micro-nano bubble generator 31, mixing wastewater with air groove 32, dissolved air flotation groove 33 and effluent recycling groove 34; Described mixing wastewater with air groove 32, dissolved air flotation groove 33 and effluent recycling groove 34 are connected successively, and described mixing wastewater with air groove 32 is communicated with at side roof part with described dissolved air flotation groove 33; Described dissolved air flotation groove 33 is communicated with at side bottom with described effluent recycling groove 34; Described micro-nano bubble generator 31 comprises pressured air-dissolving device 35, reflux 36 and micro-nano bubble releasing device 37, and described micro-nano bubble releasing device 37 is positioned at the bottom of described mixing wastewater with air groove 32; Described reflux 36 is located at the middle part of described effluent recycling groove 34.Described micro-nano bubble releasing device 37 can produce the dissolved air water 301 of diameter at the air bubble of 10 ~ 50 μm.
More specifically, third gear plate 38 is provided with between described mixing wastewater with air groove 32 and described dissolved air flotation groove 33; Fourth gear plate 39 is provided with between described dissolved air flotation groove 33 and described effluent recycling groove 34.
Particularly, the length of described mixing wastewater with air groove 32, dissolved air flotation groove 33 and effluent recycling groove 34 accounts for 10%, 80% and 10% of the total length of described micro-nano air supporting oxygenation treating pond 3 respectively.
Particularly, the top of described dissolved air flotation groove 33 is provided with and strains water device 302.Described water device 302 of straining can make the floating impurity produced in air-flotation process be discharged by overflow, thus the density removed in micro polluted drinking water resources former water 6 and the larger dissolved organic matter of the close molecule of water, algae and surfactivity.
Described reflux 36, can make part water body again be back to pressured air-dissolving device 35, after producing dissolved air water 301 after air mixed, enters mixing wastewater with air groove 32 by micro-nano bubble releasing device 37.Remain water body through fifth gear plate 303 top overflow to biological contact oxidization treatment pond 4.
Particularly, described biological contact oxidization treatment pond 4 is provided with biological rope 41 and carbon fibre 42 successively along horizontal inflow direction.
Particularly, be also provided with hanger in described biological contact oxidization treatment pond 4, described biological rope 41 and one end of described carbon fibre 42 are hung on described hanger, and described biological rope 41 and the other end of described carbon fibre 42 are provided with counterweight.
Particularly, described biological rope 41 accounts for 80% of described biological contact oxidization treatment pond 4 volume with the cumulative volume of described carbon fibre 42, and the volume ratio between described biological rope 41 and described carbon fibre 42 is 3:1.Biological rope 41 has coarse outer boundary and huge surface-area, can catch the micro/nano level bubble 27 in water body easily, for the aerobic microorganism of attachment provides sufficient oxygen, makes the organism in water fully oxidized; Solubilised state and suspended contaminant in carbon fibre 42 energy absorption and sorption, trap water, the sound wave sent after solar light irradiation can excite microbic activity, promotes degraded and the conversion of pollutent further.
Aerobic microbiological is bred at biological rope 41, the surperficial raised growth of carbon fibre 42 and is formed microbial film, micro-nano bubble in this step in dissolved air water 301 is caught by microbial film, facilitate based on the removal of the organic pollutant of BOD, COD, remove the nutrient salts such as nitrogen phosphorus simultaneously.
Particularly, described artificial dielectric adsorption treatment pond 5 is provided with the multiple tracks water-permeable geotextile 51 vertical with horizontal direction.
More specifically, multiple tracks water-permeable geotextile 51 is 80 ~ 150 object polyethylene gauzes.Water outlet through directly discharge after multiple tracks water-permeable geotextile 51, other suspended particle in the microbial film that can filter packing come off in this step, algae and water.
Use apparatus of the present invention process micro-polluted raw water yield to be 192 tons/day, the water quality of former water is in table 1, and by above-mentioned water body by pumping plant 11 fastener driving device of water inlet system 1, influent load is adjusted to 8m by flow regulation device
3/ h; The depth of water of device is about 1m, and the volume in ramp type precipitation process pond, micro-nano air supporting oxygenation treating pond, biological contact oxidization treatment pond, artificial dielectric adsorption treatment pond is about 3m respectively
3, 2m
3, 12m
3and 1m
3; Former water in ramp type precipitation process pond, micro-nano air supporting oxygenation treating pond, biological contact oxidization treatment pond, artificial dielectric adsorption treatment pond hydraulic detention time be about 22 minutes respectively, 15 minutes, 90 minutes and 8 minutes.Water quality is after treatment in table 1.
Table 1
As can be seen from Table 1, through the strenuous primary treatment of apparatus of the present invention, the main contamination index of micro-polluted raw water quality progressively improves.SS index has significant removal, according to the relevant limit value of standard GB/T 3838-2002 " water environment quality standard ", and TN, COD of former water
mnindex is promoted to III class by IV class, TP index effluent road IV class is promoted to river course II class, NH
3-N index is upgraded to I class by III class water extraction, and DO is promoted to II class by IV class.The lifting of overall water quality can alleviate the burden of follow-up conventional processing or ecological purification process, reduces the added amount of chemical of water factory, thus serves the effect improving drinking water quality.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (6)
1. the former enhanced water pretreatment unit in micro-polluted drinking water water source, it is characterized in that, described device is integral type device, and described device comprises water inlet system (1), ramp type precipitation process pond (2), micro-nano air supporting oxygenation treating pond (3), biological contact oxidization treatment pond (4) and artificial dielectric adsorption treatment pond (5); Described water inlet system (1) is connected with described ramp type precipitation process pond (2) side bottom, first water outlet of described ramp type precipitation process pond (2) is communicated with the first water-in of described micro-nano air supporting oxygenation treating pond (3), second water outlet of described micro-nano air supporting oxygenation treating pond (3) is communicated with the second water-in of described biological contact oxidization treatment pond (4), and the 3rd water outlet of described biological contact oxidization treatment pond (4) is communicated with the 3rd water-in of described artificial dielectric adsorption treatment pond (5); Described first water outlet is located at the side bottom of described ramp type precipitation process pond (2); Described first water-in is located at the side bottom of described micro-nano air supporting oxygenation treating pond (3); Described second water outlet is located at the side roof part of described micro-nano air supporting oxygenation treating pond (3); Described second water-in is located at the side roof part of described biological contact oxidization treatment pond (4); It is the multiple tracks swash plate (21) of 35 ° ~ 45 ° of angles that described ramp type precipitation process pond (2) is provided with horizontal inflow direction, and the bottom of described ramp type precipitation process pond (2) is provided with the settling chamber (22) large with described multiple tracks swash plate (21) shadow area etc.; Described ramp type precipitation process pond is provided with between described multiple tracks swash plate (21) and described first water outlet is fixed on the first baffle plate (23) bottom ramp type precipitation process pond and vertical with horizontal inflow direction, and the top of described first baffle plate (23) is higher than described first water outlet top and lower than the top of described multiple tracks swash plate (21); Described micro-nano air supporting oxygenation treating pond (3) comprises micro-nano bubble generator (31), mixing wastewater with air groove (32), dissolved air flotation groove (33) and effluent recycling groove (34); Described mixing wastewater with air groove (32), dissolved air flotation groove (33) and effluent recycling groove (34) are connected successively, and described mixing wastewater with air groove (32) is communicated with at side roof part with described dissolved air flotation groove (33); Described dissolved air flotation groove (33) is communicated with at side bottom with described effluent recycling groove (34); Described micro-nano bubble generator (31) comprises pressured air-dissolving device (35), reflux (36) and micro-nano bubble releasing device (37), and described micro-nano bubble releasing device (37) is positioned at the bottom of described mixing wastewater with air groove (32); Described reflux (36) is located at the middle part of described effluent recycling groove (34); Described artificial dielectric adsorption treatment pond (5) is provided with the multiple tracks water-permeable geotextile (51) vertical with horizontal inflow direction.
2. device as claimed in claim 1, it is characterized in that, described water inlet system (1) comprises pumping plant (11) and flow regulation device (12).
3. device as claimed in claim 1, it is characterized in that, the length of described mixing wastewater with air groove (32), dissolved air flotation groove (33) and effluent recycling groove (34) accounts for 10 ~ 15%, 75 ~ 85% and 5 ~ 10% of the total length of described micro-nano air supporting oxygenation treating pond (3) respectively.
4. device as claimed in claim 1, it is characterized in that, the top of described dissolved air flotation groove (33) is provided with strains water device (302).
5. device as claimed in claim 1, it is characterized in that, described biological contact oxidization treatment pond (4) is provided with biological rope (41) and carbon fibre (42) successively along horizontal inflow direction.
6. device as claimed in claim 5, it is characterized in that, described biological rope (41) accounts for more than 80% of described biological contact oxidization treatment pond (4) volume with the cumulative volume of described carbon fibre (42), and the volume ratio between described biological rope (41) and described carbon fibre (42) is 2 ~ 4:1.
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| JPS60891A (en) * | 1983-06-17 | 1985-01-05 | Oosakafu | Rotary disk type water treating apparatus |
| JP3081725B2 (en) * | 1992-04-23 | 2000-08-28 | 鐘淵化学工業株式会社 | Method for producing foamed article in polypropylene resin mold having skin |
| CN1300016C (en) * | 2003-11-19 | 2007-02-14 | 黄建军 | River late water purification method and its special flowing aeration equipment |
| CN101139120B (en) * | 2007-08-14 | 2010-07-07 | 北京科技大学 | Method for purifying eutrophication water body |
| CN103043853B (en) * | 2012-12-14 | 2014-07-30 | 蓝星环境工程有限公司 | Advanced treatment process and device for sewage |
| CN203048733U (en) * | 2012-12-14 | 2013-07-10 | 蓝星环境工程有限公司 | Advanced sewage treatment device |
| CN203976581U (en) * | 2014-06-20 | 2014-12-03 | 上海勘测设计研究院 | The former enhanced water pretreatment unit in a kind of micro-polluted drinking water water source |
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