CN201952284U - Integrated biological denitrification and sewage treatment device - Google Patents
Integrated biological denitrification and sewage treatment device Download PDFInfo
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- CN201952284U CN201952284U CN2011200115577U CN201120011557U CN201952284U CN 201952284 U CN201952284 U CN 201952284U CN 2011200115577 U CN2011200115577 U CN 2011200115577U CN 201120011557 U CN201120011557 U CN 201120011557U CN 201952284 U CN201952284 U CN 201952284U
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Abstract
The utility model relates to improvement on a biological denitrification and anoxygenous (anaerobic)-aerobic water treatment device. The improvement is characterized in that the adjacent and separate arrangement forming internal circulation modes are as follows: an anoxygenous zone is arranged at the periphery of an aerobic zone; a gas-liquid separation flow guide sloping plate is arranged above the overflow periphery at the upper part of the aerobic zone; and a water inlet distribution zone is arranged above the aerobic zone and a water distributing pipe extending into the liquid level of the anoxygenous zone is used for distributing water in the water inlet distribution area. The structure effectively overcomes or reduces the aeration defect caused by water inlet and reflux to the anoxygenous zone in the prior art, lowers or limits water inlet and aeration to the anoxygenous zone, is beneficial for controlling the dissolved oxygen in the anoxygenous zone within a low required range, meets the anoxygenous requirement of denitrifying bacteria, and consequently improves the denitrifying denitrification effect; in addition, the arrangement of extra power for lifting reflux as well as a stirring device in the anoxygenous zone also can be omitted and the energy consumption in operation is lowered.
Description
Technical field
Utility model is to being mainly used in the improvement that lacks (holding concurrently) oxygen-aerobic water treatment device of biological denitrificaion, relate in particular to a kind of internal-circulation type, do not need to promote in addition power, power consumption is little, and phegma, water distribution are few to anoxic pond oxygenation, help keeping the integral biological denitrogenation waste disposal plant of low DO in the anoxic pond.
Background technology
The body eutrophication problem more and more causes people's attention, and effluent-disposal standard also improves thereupon, and sewage disposal no longer is to be purpose to remove BOD and SS only, and the removal of nutritive substances such as nitrogen, phosphorus becomes sewage disposal important control target.Based on tradition nitrated-anaerobic-aerobic (A/O) bio-denitrification technology of denitrification exploitation, be employed in water treatment because of denitrification effect is good.Common A/O process unit, adopt separately two or with upper storage reservoir in carry out aerobic nitrification and anoxic denitrification technology respectively, sewage is introduced into anoxic pond, flow into Aerobic Pond with gravity, by reflux pump or air-lift device, return line etc. a certain amount of muddy water mixed solution in the Aerobic Pond (abbreviation phegma) is back to anoxic pond again and finishes denitrification denitrogenation.This structure anoxia/aerobic biological denitrification, actual denitrification effect are not very high, make the superiority of anoxia/aerobic biological denitrification fail to bring into play cmpletely, and main deficiency has: built in the pond in one minute, and floor space is big, and cost of investment is big; Two Aerobic Ponds reflux to anoxic pond needs extra increase backflow to promote power, and the phegma quantity of reflux is bigger usually, for example reflux ratio is up to about 200%, and for making phegma and water inlet and anoxic pond sewage thorough mixing, also needing increases whipping appts in anoxic pond, so auxiliarypower consumption is bigger; The performance of three anoxic denitrification effects must for example carried out under DO≤0.5mg/l than low dissolved axygen (DO), and objectively aerobic nitrification need have higher DO (2.0-4.0 mg/l), a large amount of Aerobic Pond phegmas directly enter anoxic pond, adding anoxic pond mixes, and falling type is adopted in the anoxic pond water inlet, three factors can cause all that DO raises in the anoxic pond (back two for bringing air into), therefore cause the required low DO of anoxic pond to keep comparatively difficulty, thereby reduced the denitrification denitrogenation ability, this is to cause the dissatisfactory major cause of denitrification effect; Four nitrated-denitrifications mainly adopt the mud method of active sludge, and the excess sludge generation is big, carry out sludge treatment again, have increased running cost especially.
For this reason, people have invented incorporate Anoxybiotic-aerobic biologic nitrogen rejection facility, anoxic-aerobic process are arranged at (to separate with the pond) in same device or the structures form the internal reflux circulation, attempt to overcome the deficiency that goes up aforementioned prior art, for example.
Chinese patent CN2410293 integral synchronous denitrification biological treatment reactor has the first hypoxia response district A in turn; The first aerobic zone of action B; The second hypoxia response district C; The second aerobic zone of action D; Depositing separation area E.Wherein between aerobic zone B district and oxygen-starved area A gas is set and carries return line, aerobic zone B water directly enters the second oxygen-starved area C.
Chinese patent CN201395547 waste disposal plant, comprise adjacent base hypoxia response district that communicates and the aerobic reactor zone that is provided with filler and aerating apparatus successively, top, hypoxia response district is provided with former water water inlet pipe, is provided with the seam that refluxes between hypoxia response district and the aerobic reactor zone.
Chinese patent CN101935132A A
2/ O-microbial film synchronous denitrification dephosphorizing device comprises the anaerobic pond, anoxic pond, first Aerobic Pond, second Aerobic Pond and the settling tank that connect successively; Stirring rake is arranged respectively in anaerobic pond and the anoxic pond, and second Aerobic Pond is connected with anoxic pond with the mixed-liquor return pump by pipeline, and settling tank is connected with anaerobic pond with sludge reflux pump by pipeline; Be dispersed with floating stuffing in first Aerobic Pond, second Aerobic Pond.
Chinese patent CN101439908 anaerobic multi-stage aerobic-anoxic dephosphorization and denitrification process, comprise that anaerobism, aerobic, anoxic carry out a biological disposal upon in proper order, and carry out secondary sedimentation, sewage is divided into two portions, about 30% sewage with enter anaerobic pond after returned sluge mixes, all the other most sewage surmount anaerobic pond and divide multiple spot to enter with a plurality of anoxic pond that Aerobic Pond communicates at interval to carry out denitrification, residue small portion sewage effusive mixed solution in last Aerobic Pond enters second pond, regularly discharges excess sludge after the mud-water separation in the second pond.
The multistage AO dephosphorization denitrogenation of Chinese patent CN201485360U multistage reactive system comprises setting gradually anaerobic zone, aerobic zone and to the aerobic supporting district of Pyatyi anoxic that reflux sludge tube is connected with anaerobic zone.
Chinese patent CN201313854 anoxic/aerobic integrated formula circulating biological reactor is provided with two baffle plates in the middle of square reactor, the centre is an aerobic area, and both sides are aerobic zone, and aerobic area top is provided with the sludge settling device, carries by gas and forms circulation.
Above-mentionedly in same pond, be separated with one group of anoxic pond and Aerobic Pond or many groups alternately, form the internal reflux circulation, take up an area of and investment, and the employing biologic packing material that has reduces mud and produces though omitted by branch; But they still exist the high dissolved oxygen sewage of Aerobic Pond directly to enter anoxic pond, falling type is adopted in the anoxic pond water inlet, can cause anoxic pond oxygenation equally; And it is big still to establish the power consumption of power-lift phegma with other, and this two big shortcoming still fails to be overcome, and particularly the high DO phegma of Aerobic Pond band oxygen causes anoxic pond oxygenation, is difficult to satisfy best anoxic denitrification to low DO requirement, still restricts efficient denitrification.The low DO of anoxic pond controls the major obstacle that difficult problem becomes the performance of Anoxybiotic-aerobic biologic denitrification effect.Make water-in be arranged on the aerobic zone bottom though Chinese patent CN201313854 adopts, cause oxygenation, can not allow the oxygen-starved area denitrifying bacterium preferentially obtain the high carbon source of intaking, influence the performance of biological denitrificaion usefulness equally to reduce water inlet; Water inlet is directly carried out to aerobic zone in addition, and causing easily disposes of sewage directly enters the settling tank short-circuit flow in the air-lift unit process; Settling tank is arranged on the aerobic area top simultaneously, makes the equipment integral complex structureization, and is unfavorable for management maintenance.
Above-mentioned deficiency still has is worth improved place.
Summary of the invention
The utility model purpose is to overcome above-mentioned the deficiencies in the prior art, provides a kind of backflow oxygenation little, and oxygen is not with in water inlet in addition, can effectively keep the low DO in oxygen-starved area, Nitrogen removal effect is good, and power-lift refluxes separately, the integral biological denitrogenation waste disposal plant that operation energy consumption is low.
The utility model purpose realizes that mainly improving one is to make the oxygen-starved area be arranged on the aerobic zone periphery, and by the current lift that aeration provides, gravity flow is finished to the oxygen-starved area and refluxed; The 2nd, in reflux course, discharge wherein high dissolved oxygen earlier, reduce dissolved oxygen content in the phegma; The 3rd, water inlet is not touched with air to the oxygen-starved area, water inlet directly feeds under the liquid level of oxygen-starved area, stop into water and bring air into, thereby help keeping the required low DO of anoxic pond, denitrification is carried out under top condition, and omit phegma and establish lifting power in addition, reduced operation energy consumption, thereby overcome above-mentioned the deficiencies in the prior art, realize the utility model purpose.Specifically, utility model integral biological denitrogenation waste disposal plant, comprise into water cloth pool, adjacent separation setting, the anoxic that communicates up and down and aerobic reactor zone, and built-in biological filler, it is characterized in that said adjacent separation is set to the oxygen-starved area in the setting of aerobic zone periphery, there is the gas-liquid separation flow guiding inclined plate aerobic zone top overflow periphery top; Water inlet cloth pool is arranged on the top, oxygen-starved area, and by stretching into the subsurface water distributor water distribution in oxygen-starved area.
Before the detailed description, make a presentation by the basic function and the effect that can reach earlier, so that those skilled in the art have one clearly to understand to this patent general plotting technical scheme invention.
The utility model device, because the oxygen-starved area is provided with in the aerobic zone periphery, thereby form the bigger flow area that overflows back, make that (sewage mixes a large amount of micropore bubbles in the up-flow effect that can produce by the aeration oxygen supply, density diminishes, and volume becomes the big up-flow that forms), and the bottom aeration plays suction function to the sewage of coming from the bottom, oxygen-starved area, both actings in conjunction form the up-flow internal recycle that satisfies to the big reflux cycle amount in oxygen-starved area, thereby can economize bigger backflow lifting power; The gas-liquid separation flow guiding inclined plate of aerobic zone top overflow periphery top, make aerobic zone up-flow phegma stop by this swash plate, the guide functions that refluxes in both oriented oxygen-starved area, simultaneously mainly make the up-flow phegma hit swash plate and make wherein dissolved oxygen (DO) steam bubble and water sepn, and the wall attachment effect come-up of passing through swash plate breaks away from phegma, strengthened gas-liquid separation in the phegma, entered DO content in the phegma of oxygen-starved area, thereby effectively reduced the aerobic zone phegma and given oxygen-starved area oxygenation thereby reduced; Water inlet cloth pool is arranged on the top, oxygen-starved area, and finish water distribution by stretching into the subsurface water distributor in oxygen-starved area, the oxygen-starved area water inlet does not contact with air like this, also eliminate the oxygen-starved area water inlet and brought air (O) into, the cloth pool that intakes simultaneously is arranged on oxygen-starved area top, also help forming big cloth water area, and do not increase equipment sectional area (not increasing the cloth water area), and big cloth water area, also help water into bring into carbon source evenly, adding refluxes adopts the side face overflow, thereby can omit the oxygen-starved area and mix stirring.Oxygen or is not less taken in aerobic zone phegma oxygen release and water inlet, both actings in conjunction (being mainly the former) have reduced oxygen-starved area oxygenation, thereby help keeping the low DO in oxygen-starved area (the denitrification top condition of DO≤0.5mg/l) for example, thereby high denitrification denitrogenation effect can be arranged; Pool structure is arranged and the aeration up-flow refluxes, saved and established lifting power in addition, and the oxygen-starved area stirring, both constitute the present invention and innovate the difference characteristics.
In the utility model.
Type plane, pond is not particularly limited, and according to the water technology design requirements, can be rectangle commonly used or circle.Wherein a kind of rectangle that is preferably helps for example cooperating the settling region with the back process pool.The oxygen-starved area is provided with in the aerobic zone periphery, and according to pond, plane type and difference for example can be provided with in the aerobic zone both sides for rectangle form pool, circular pond is concentric ring setting in addition then.
Top water inlet cloth pool, oxygen-starved area, cloth pool are the C type around being arranged at top, oxygen-starved area, can with same cross section, oxygen-starved area, also can different cross section, specifically look the cloth water yield and require design to determine.Water inlet cloth stretches into the subsurface water distributor in oxygen-starved area in the pool, be mainly used in air-isolation to the oxygen-starved area water distribution, its quantity and form can have multiple, require and make as far as possible into water evenly as long as satisfy the cloth water yield, wherein a kind of better is to adopt multiple spot pipe or rectangular water distribution, help entering oxygen-starved area water inlet and phegma and oxygen-starved area sewage mixes, can make omitting under the whipping appts and still have mixed effect preferably.
Aerobic zone top overflow periphery top gas-liquid separation flow guiding inclined plate, its effect mainly is to make up-flow phegma bump produce gas, liquid centrifugation, and water conservancy diversion enters the oxygen-starved area, enter DO in the phegma of oxygen-starved area thereby reduce, so gas-liquid separation device in the water treatment, also can be employed, just the swash plate structure is simpler.Said swash plate can be a smooth plate, also can be porous plate, and phegma enters the oxygen-starved area by the porous plate eyelet.
Filler in oxygen-starved area and the aerobic zone, it acts on same prior art, main by the filler adheres biological action, increase nitrated and denitrifying bacteria biomass, reduce mud and produce, so all fillers all can be employed in the water-treatment biological embrane method, for simplifying structure, a kind of being preferably adopted the fixedly fixed bed of filler, for example hangs combined stuffing.
Be a step to improve device, preferably can also be for realizing the better effect of goal of the invention.
Aerobic zone top overflow periphery top gas-liquid separation flow guiding inclined plate, test better and horizontal plane angle α between 45 °-60 °, more help improving the gas-liquid separation effect under the low flow velocity, thereby making that DO is as much as possible in the aerobic zone phegma overflows, and guarantees to enter the low DO content of oxygen-starved area phegma.
Oxygen-starved area and aerobic zone useful volume ratio, test is preferably 1:1.5-2.5.
Aerobic zone water outlet weir plate or follow-up connection settling tank water outlet weir plate, a kind of better employing oscilaltion is movable, the water outlet weir plate is adjustable height up and down, can play that indirect control is aerobic, oxygen-starved area liquid level height, thereby control nitrification liquid quantity of reflux and oxygen-starved area dissolved oxygen (DO) indirectly, for example the water outlet weir plate raises, and the nitrification liquid quantity of reflux increases, otherwise then opposite.
The place that communicates, oxygen-starved area and aerobic zone bottom, a kind of better is to be provided with flow guiding inclined plate, flow guiding inclined plate had both helped reducing the circulation head loss, can eliminate the current dead angle again simultaneously, reached issuable sludge settling.Flow guiding inclined plate better and horizontal sextant angle β at 45 ° ± 5 °.
Enter DO content in the phegma of oxygen-starved area for further reducing aerobic zone, a kind of being more preferably adds permeable baffle plates such as grid, web plate, Eight characters plate under the liquid level of aerobic zone top, up-flow liquid clashes into this permeable baffle plate, help microbubble gathering increase in the water, not only assemble air pocket and can overflow the water surface " escape ", again through top gas-liquid separation flow guiding inclined plate, remove when more helping overflowing back liquid simultaneously, reduced DO content in the phegma especially.The permeable baffle plate that this helps bubble separation can be to cover the aerobic zone total cross section, also can be part, ring cowling structure in for example forming around overflow.
Utility model integral biological denitrogenation waste disposal plant, with respect to prior art, owing to adopt said structure, (the nitrated phegma of aerobic zone enters the oxygen-starved area after separating the degassing to be with the oxygen measure by multiple reduction or restriction to the oxygen-starved area water inlet, water inlet does not contact with air to the oxygen-starved area), and overflow type refluxes, the thin easier release of water layer DO, thereby have and well fall the DO effect, intake to the oxygen-starved area thereby effectively overcome or reduced prior art, backflow causes the oxygenation shortcoming, help making the oxygen-starved area dissolved oxygen to be controlled at low claimed range (DO≤0.5mg/l) for example, satisfy the requirement of denitrifying bacteria anoxic, and then improved the denitrification denitrogenation effect, improved nitrification and denitrification denitrogenation ability on the whole.Handle water inlet and enter the oxygen-starved area continuously,, also help giving full play to of denitrifying bacteria effect as the excellent supplementary carbon source that constantly obtains of the denitrifying bacteria of heterotroph.Aerobicly reflux with oxygen-starved area big area overflow, not only satisfy the big quantity of reflux the low speed up-flow under, and the big area overflow helps the sewage uniform mixing with oxygen oxygen district, this structure design also helps facility compact simultaneously, minimizing plant area area; Water inlet multiple spot or rectangular water distribution have improved oxygen-starved area water inlet (bringing carbon source into) and phegma and oxygen-starved area sewage and have mixed, and make to still have mixed effect preferably under the omission whipping appts.Omit the oxygen-starved area whipping appts, reach aerobic zone and establish the power-lift backflow in addition, reduced operation energy consumption again.Adopt the filler fixed-bed process with prior art, also effectively reduced the mud generation.
Below in conjunction with three exemplary embodiments; utility model essence is further understood in exemplary illustration and help; but the embodiment detail only is for utility model is described; do not represent utility model design whole technical schemes down; therefore should not be construed as the total technical scheme of utility model is limited; some are In the view of the technician; the unsubstantiality that does not depart from the utility model design increases and/or change; for example change or replace, all truely use novel protected scope so that technical characterictic with same or similar technique effect is simple.
Description of drawings
Fig. 1 is a utility model embodiment plan view from above.
Fig. 2 is Fig. 1 A-A sectional view.
Fig. 3 is Fig. 1 B-B sectional view.
Embodiment
Embodiment 1: referring to accompanying drawing, utility model integral biological denitrogenation waste disposal plant, adopt the rectangle plane structure, be divided into the middle aerobic zone C that communicates up and down by dividing plate 11, oxygen-starved area, both sides B, rear side settling region D, the cloth pool A of wherein intaking are C type distributing trough 2 and are arranged on oxygen-starved area B top, oxygen-starved area B and aerobic zone C volume ratio 1:2.0.There is the water inlet pipe 4 that extends under many below the liquid level of oxygen-starved area C type distributing trough 2 bottoms to the oxygen-starved area water distribution; Be provided with the fixing biologic packing material 3 that hangs in oxygen-starved area B, the aerobic zone C; Bottom the oxygen-starved area communicates with aerobic zone, gradient β 45 degree flow guiding inclined plates 5; Aerating apparatus 6 is arranged at aerobic zone C bottom, and top is to the gas-liquid separation water conservancy diversion atresia swash plate 7 (being positioned over aerobic/oxygen-starved area dividing plate top, to oxygen-starved area inclination water conservancy diversion) of gradient α 60 degree in side face top (reserving the overflow seam) that the oxygen-starved area overflow refluxes; Be provided with inclined tube filler 8 in the settling region D, effluent weir has the lift water outlet zig-zag weir plate 9 of adjustable (regulated quantity 10cm) up and down, and the minimum water outlet of weir plate flushes with dividing plate 11 tops.
Technological process: disposing of sewage enters C type distributing trough 2 by water inlet pipe 1, behind the uniform water distribution, by a plurality of water distributor 4 vertical oxygen-starved area B of inflow that extend down below the liquid level of oxygen-starved area in bottom, bring water-inlet carbon source simultaneously into, participate in the oxygen-starved area anti-nitration reaction, and aerobic zone C in the middle of entering by the bottom, carry out aerobic nitrification reaction at this, and the upwelling that forms with aeration, through the gas-liquid separation flow guiding inclined plate 7 of side face, phegma enters oxygen-starved area B after gas-liquid separation, and having reduced refluxes brings DO into.Aerobic zone C bottom water outlet enters settling region D and carries out precipitate and separate, and top, settling region effluent weir is adjustable water outlet zig-zag weir plate 9 up and down, oscilaltion control aerobic zone phegma quantity of reflux.By regulating the air aeration amount, realize the required DO concentration (generally controlling DO about 2.0mg/L) of aerobic zone C aerobic bacteria.Aerobic zone C sewage mixing air rises and arrives the top, portion of air is overflowed the water surface and is entered atmosphere, portion of air spreads to both sides with sewage, when running into the gas-liquid separation flow guiding inclined plate 7 that both sides are provided with, realize gas-liquid separation, reduce DO concentration in the phegma, the setting of the flow guiding inclined plate of gas-liquid separation simultaneously 7 also has guide functions, phegma enters the oxygen-starved area from gas-liquid separation flow guiding inclined plate 7 bottoms, and with the water inlet uniform mixing, by diluting with water inlet, further reduce aerobic zone phegma DO, keep required low DO concentration (the being generally 0.5mg/L) anoxia condition in oxygen-starved area.Through some nitrated-denitrification circulation after, sewage flows into settling region D from aerobic zone C bottom, guarantees good mud-water separation effect through settling region inclined tube filler 8, after inclined tube filler 8 solid-liquid separation, rises and surmounts water outlet weir plate 9, is discharged by water outlet 10.The water outlet weir plate is adjustable about in the of 9, controls oxygen-starved area B/ aerobic zone C liquid level height indirectly, realizes the control of nitrification liquid quantity of reflux and DO.
Embodiment 2: as embodiment 1, the aerobic zone top liquid level has permeable baffle plates such as grid, web plate, Eight characters plate, takes off the DO effect to strengthen phegma.
Embodiment 3: as embodiment 1 or 2, circular configuration is adopted on the plane, pond, and the oxygen-starved area is concentric cylindrical annular.
To those skilled in the art; under this patent design and specific embodiment enlightenment; some distortion that can directly derive or associate from this patent disclosure and general knowledge; those of ordinary skills will recognize also can adopt additive method; or the substituting of known technology commonly used in the prior art; and the equivalence of feature changes or modification; mutual various combination between feature; the for example change of treatment unit cross-sectional shape; biologic packing material can also adopt other forms; the oxygen-starved area; aerobic zone is according to disposing of sewage both useful volumes than changing; the gas-liquid separation swash plate is the porous plate that is affixed on the dividing plate top; and adopt other to have the gas-liquid separation device of effects equivalent; or the like unsubstantiality change, can be employed equally, can both realize this patent representation function and effect; launch for example no longer one by one to describe in detail, all belong to this patent protection domain.
For convenience of description, the said pond of utility model, district are synonym; Dissolved oxygen and DO are synonym; By prior art nitrated-the denitrification notion, the anoxic oxygen that also refers to hold concurrently.
Patent device can be structures, also can be the prefabrication structure.
Claims (9)
1. integral biological denitrogenation waste disposal plant, comprise into water cloth pool, adjacent separation setting, the anoxic that communicates up and down and aerobic reactor zone, and built-in biological filler, it is characterized in that said adjacent separation is set to the oxygen-starved area in the setting of aerobic zone periphery, there is the gas-liquid separation flow guiding inclined plate aerobic zone top overflow periphery top; Water inlet cloth pool is arranged on the top, oxygen-starved area, and by stretching into the subsurface water distributor water distribution in oxygen-starved area.
2. according to the described integral biological denitrogenation of claim 1 waste disposal plant, it is characterized in that type plane, treatment unit pond is rectangular.
3. according to the described integral biological denitrogenation of claim 2 waste disposal plant, it is characterized in that both sides outside aerobic zone, oxygen-starved area, the cloth pool is the C type around being arranged at top, oxygen-starved area.
4. according to the described integral biological denitrogenation of claim 1 waste disposal plant, it is characterized in that gas-liquid separation flow guiding inclined plate and horizontal sextant angle α are 45 ° ~ 60 °.
5. according to the described integral biological denitrogenation of claim 1 waste disposal plant, it is characterized in that oxygen-starved area and aerobic zone useful volume ratio are 1:1.5-2.5.
6. according to the described integral biological denitrogenation of claim 1 waste disposal plant, it is characterized in that the treat effluent weir plate is that the oscilaltion activity is adjustable.
7. according to the described integral biological denitrogenation of claim 1 waste disposal plant, it is characterized in that there is flow apron the oxygen-starved area bottom communicating with aerobic zone.
8. according to the described integral biological denitrogenation of claim 7 waste disposal plant, it is characterized in that 45 ° ± 5 ° of flow apron and horizontal plane angles.
9. according to the described integral biological denitrogenation of arbitrary claim waste disposal plant in the claim 1 to 9, it is characterized in that permeable baffle plates such as grid, web plate, Eight characters plate are arranged under the liquid level of aerobic zone top.
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| CN2011200115577U CN201952284U (en) | 2011-01-17 | 2011-01-17 | Integrated biological denitrification and sewage treatment device |
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| CN2011200115577U CN201952284U (en) | 2011-01-17 | 2011-01-17 | Integrated biological denitrification and sewage treatment device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105461055A (en) * | 2015-09-24 | 2016-04-06 | 福建方明环保科技股份有限公司 | Aeration aerobic facultative biomembrane digestion reaction apparatus and method thereof |
| CN105936543A (en) * | 2016-06-24 | 2016-09-14 | 江苏贞环保科技有限公司 | Novel equipment for processing sewage of villages and towns |
| CN107963782A (en) * | 2017-11-28 | 2018-04-27 | 华夏碧水环保科技有限公司 | A kind of biological contact oxidation reaction system of strengthened denitrification function |
| CN110845009A (en) * | 2019-11-09 | 2020-02-28 | 上海电站辅机厂有限公司 | Anaerobic and aerobic biochemical integrated device |
-
2011
- 2011-01-17 CN CN2011200115577U patent/CN201952284U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105461055A (en) * | 2015-09-24 | 2016-04-06 | 福建方明环保科技股份有限公司 | Aeration aerobic facultative biomembrane digestion reaction apparatus and method thereof |
| CN105461055B (en) * | 2015-09-24 | 2017-12-19 | 福建方明环保科技股份有限公司 | It is aerated aerobic and oxygen biomembrane digestion reaction device and method |
| CN105936543A (en) * | 2016-06-24 | 2016-09-14 | 江苏贞环保科技有限公司 | Novel equipment for processing sewage of villages and towns |
| CN107963782A (en) * | 2017-11-28 | 2018-04-27 | 华夏碧水环保科技有限公司 | A kind of biological contact oxidation reaction system of strengthened denitrification function |
| CN110845009A (en) * | 2019-11-09 | 2020-02-28 | 上海电站辅机厂有限公司 | Anaerobic and aerobic biochemical integrated device |
| CN110845009B (en) * | 2019-11-09 | 2023-08-01 | 上海电站辅机厂有限公司 | Anoxic and aerobic biochemical integrated device |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20110831 Effective date of abandoning: 20120725 |