CN205241354U - Round --clock running purifies rural domestic sewage's high -efficient alga pool system of accuse temperature - Google Patents
Round --clock running purifies rural domestic sewage's high -efficient alga pool system of accuse temperature Download PDFInfo
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- CN205241354U CN205241354U CN201520983520.9U CN201520983520U CN205241354U CN 205241354 U CN205241354 U CN 205241354U CN 201520983520 U CN201520983520 U CN 201520983520U CN 205241354 U CN205241354 U CN 205241354U
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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
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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Abstract
The utility model discloses a round - -clock running purifies rural domestic sewage's high -efficient alga pool system of accuse temperature, a serial communication port, including the high -efficient alga pool that is equipped with water inlet, delivery port, the upper portion of high -efficient alga pool one side is located to the water inlet, and the lower part of high -efficient alga pool opposite side is located to the delivery port, be equipped with at least one rope formula biofilm carrier in the high -efficient alga pool, rope formula biofilm carrier hangs in high -efficient alga pool top, and the usable biofilm carrier of microorganism gathers the growth rapidly, high -efficient alga pool outer wall parcel has the electric heat membrane, and the electric heat membrane is connected with control system, high -efficient alga pool inner wall evenly distributed has the waterproof light of built -in LED. The utility model discloses use clean contamination free solar energy and supply power, regulate and control the temperature round the clock for the high -efficient alga pool, it is not only energy -concerving and environment -protective, showing the operating efficiency and the treatment effect that have increased the high -efficient alga pool moreover, form a high efficiency, stability, energy -conserving novel sewage treatment system.
Description
Technical field
The utility model belongs to technical field of sewage, relates to a kind of purification life in the countryside dirt of round-the-clock runningThe temperature control Using High-Rate Algae Pond system of water.
Background technology
The problem of environmental pollution that domestic sewage in rural areas by using causes is day by day serious, and at present, national rural area is annual to produce approximatelyThe sanitary sewage of 8000000000 tons and present continuous increase trend. Due to more than 90% village lack discharge conduit orThe facilities such as sewage disposal system, cause sanitary sewage arbitrarily to discharge, and disposition is unsatisfactory. Life in the countryside dirtWater, agricultural run-off and aquaculture wastewater become the major pollutants source of water body in lake eutrophication. Consider rural areaEconomic base and the present situation of managerial skills, employing reduced investment, the energy consumption that should suit measures to local conditions are low, simple and convenient managementTechnology for treating domestic sewage in rural area.
Using High-Rate Algae Pond is the improved form of traditional stabilization pond, and it promotes the complete of sewage by continuous stirring deviceMix, regulate O in the pool2And CO2Concentration, the balanced pool in water temperature and promote the stripping effect of ammonia nitrogen. HighThe design feature on the effect algae pool makes its inside be convenient to be formed with the environment that is beneficial to algea and bacteria growth and breeding, strengtheningInteraction between algea and bacteria, therefore has the life of more enriching than general stabilization pond in Using High-Rate Algae PondThing phase, all has good removal effect to organic matter, nitrogen and phosphorus. Compared with traditional two stage biological treatment technology,Using High-Rate Algae Pond has the feature low, economic operating cost of investing.
Using High-Rate Algae Pond is subject to the impact of environmental factor obvious, and illumination and temperature become restriction Using High-Rate Algae Pond and process effectThe key factor of rate. The photosynthesis of algae increases the dissolved oxygen in water, and the organic process of bacterial degradationIt is an oxygen process. On daytime, because the photosynthesis of algae is vigorous, oxygen condition, pH in system, are totallyValue raises, and this is conducive to the nitrated of organic removal and ammonia nitrogen. Evening is because the breathing of algae and microorganism is doneWith dissolved oxygen is sharply declined, in the general pool, there will be the anaerobic state of 9-10 hour, have a strong impact on processingEffect. Therefore, how making algae still can carry out photosynthesis at night is that the key that improves treatment effeciency is arrangedExecute.
Many researchers attempt cannot carry out photosynthesis by the method solution algae at night of artificial additional light sourceProblem. But the operating cost of artificial additional light source also inevitably becomes a limiting factor howReduce light source cost, and it is particularly important to promote light utilization ratio. In all light sources, solar energy is that the earth is the richestOne of rich natural resources, use solar energy not only can solve the problem of artificial light source power consumption, power consumption, also subtractLack by using the fossil fuels such as coal, the oil problem of environmental pollution causing that generates electricity.
Temperature is also one of important factor in order of nitrogen phosphorus in algae removal sewage. Research shows, at 15-35 DEG C,Algae all has removal effect to the nitrogen phosphorus in sewage, when temperature raises within the specific limits, and algal physiology activityAll can raise with the utilization rate of nutriment, when water temperature is during lower than 8 DEG C, algal grown is restricted, and also canAffect the enzymatic activity in bacterial body, cause bacterium to reduce organic absorption degradation, the removal of pollutantRate declines. Therefore, control the temperature of Using High-Rate Algae Pond make algae in the winter time can normal growth under low temperature condition alsoIt is the key measure that improves treatment effeciency.
Algae is in summer high temperature situation, and the utilization rate of physiologically active and nutriment all can raise, easily overgrowingThereby causing algae excessive concentration, there is death state after dissolved oxygen in competition, how to avoid dead algae deposition andAlgae local concentration is too high is also problem demanding prompt solution. In addition, thus the algae pool rely on algae-bacteria symbiotic system reachHow the object of purifying contaminated thing, accelerate the biomembranous breeding of helotisn, turns thereby accelerate this biomembrane absorptionChanging nitrogen phosphorus nutrition thing and organic matter in sewage, is also the key that improves treatment effeciency.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of purification life in the countryside dirt of round-the-clock runningThe temperature control Using High-Rate Algae Pond system of water, solution algae cannot carry out photosynthesis at night, nothing under cryogenic conditionsMethod growth and the problem of containing of growing under hot conditions.
In order to address the above problem, the utility model by the following technical solutions: a kind of round-the-clock running purifies agricultureThe temperature control Using High-Rate Algae Pond system of village's sanitary sewage, is characterized in that, comprises the height that is provided with water inlet, delivery portThe effect algae pool, water inlet is located at the top of Using High-Rate Algae Pond one side, and delivery port is located at Using High-Rate Algae Pond opposite sideBottom; In Using High-Rate Algae Pond, be provided with at least one rope formula biofilm carrier, rope formula biofilm carrier is suspended on efficientlyTop, the algae pool, microorganism can utilize biofilm carrier to assemble rapidly growth; Using High-Rate Algae Pond outer wall is enclosed with electricityHotting mask, Electric radiant Heating Film is connected with control system; Using High-Rate Algae Pond inwall is evenly distributed with built-in LED waterproof and shinesBright lamp.
Preferably, described control system comprises the controller for solar being connected with solar panel, solar energy controlDevice processed is connected with one end of battery, and the other end of battery connects Electric radiant Heating Film temperature controller, Electric radiant Heating Film temperature controller withElectric radiant Heating Film connects; Built-in LED waterproof, illuminating lamp is connected with controller for solar; On daytime, adopt solar energyFor each parts power supply, night, the electric energy storing in battery continues as each parts power supply.
More preferably, described solar panel is monocrystalline silicon plate or polysilicon films; Described battery is plumbic acid electricityPond, Ni-MH battery, nickel-cadmium cell or lithium battery.
More preferably, in described Using High-Rate Algae Pond, be provided with spiral agitator, it is connected with controller for solar.
More preferably, described Using High-Rate Algae Pond bottom is provided with at least one except algae mud device, Using High-Rate Algae Pond bottomOne side is provided with groove, while unlatching, is close to Using High-Rate Algae Pond bottom to the motion of groove direction, efficient algae except algae mud deviceBottom, the class pool is positioned at groove place and is provided with row algae valve; The other end of battery also connects except algae mud device control system, removesAlgae mud device is connected with except algae mud device control system.
Preferably, before described Using High-Rate Algae Pond delivery port, place a detachable filter membrane, avoid algae to stop up outThe mouth of a river reaches the effect purifying water simultaneously.
More preferably, on described filter membrane, the aperture of filtering holes is 8-10 μ m.
Described built-in LED waterproof, illuminating lamp embeds respectively bottom and the both sides of Using High-Rate Algae Pond, and utilization is heldThe electric energy driving LED waterproof, illuminating lamp being transformed by solar energy of battery storage is worked, and is Using High-Rate Algae PondIght light source is provided, makes algae also can carry out photosynthesis at night, significantly promoted the fortune of Using High-Rate Algae PondLine efficiency and treatment effect.
The Driven by Solar Energy except algae mud device utilization storage of described Using High-Rate Algae Pond bottom is except the work of algae mud device, algaeClass is grown when vigorous and can be opened except algae mud device, and the algae depositing bottom the pool is disperseed, and avoids algae concentration in casingToo high and the death that constitutes competition, also can be swept to the dead algae of pool bottom sediments in groove simultaneously, by row algae valveDischarge.
Described Using High-Rate Algae Pond overhung rope formula biofilm carrier, material is PETGFiber, for microorganism provides attachment site, is conducive to the breeding of algae-bacteria symbiotic system, around carrier, forms and causesClose algaebacteria symbiotic system, accelerates pollutant and decomposes.
Described Using High-Rate Algae Pond outer wall parcel Electric radiant Heating Film, is connected with battery by temperature controller, regulates temperature in the poolDegree, opens Electric radiant Heating Film under cryogenic conditions, controls algae pool temperature and maintains 20-30 DEG C, makes algae be able to normal lifeLong.
Described built-in LED waterproof, illuminating lamp is that low-voltage direct-current drives, and battery can be straight by controllerConnect power supply, without inverter.
Described controller for solar can hold in charging, the control of control and protection solar panel to batteryThe electric current output of battery, and regulate the power output of built-in LED waterproof, illuminating lamp, by pulse-width regulatedMode extends the service life of LED lamp.
The solar energy of the utility model application cleanliness without any pollution is that Using High-Rate Algae Pond is powered round the clock, regulating and controlling temperature, noOnly energy-conserving and environment-protective, and significantly increased operational efficiency and the treatment effect of Using High-Rate Algae Pond, form a kind of efficient,Stable, energy-conservation New Type of Sewage Treatment System.
Compared with prior art, the beneficial effects of the utility model are:
1. solar energy not only can solve the problem of artificial light source power consumption, power consumption, has also reduced by using coalThe fossil fuel such as charcoal, oil generating and the problem of environmental pollution that causes;
2. native system applied solar energy drives built-in LED waterproof, illuminating lamp to provide ight light for Using High-Rate Algae PondSource, solves algae and cannot carry out photosynthetic technical barrier at night, and ight light source has improved Using High-Rate Algae PondAt night pH value and dissolved oxygen content, for Using High-Rate Algae Pond was purified waste water and created advantage at night;
3. native system bottom arranges except algae mud device and row algae groove, has solved dead algae deposition and local algae denseSpend high technical barrier;
4. native system overhung rope formula biofilm carrier, has solved in the algae pool helotisn biomembrane concentration lowTechnical barrier, utilizes the biomembrane fast degradation pollutant that adheres to helotisn body;
5. native system outer wall parcel Electric radiant Heating Film, opens Electric radiant Heating Film under cryogenic conditions, has solved Using High-Rate Algae Pond lowThe technical barrier that cannot normally work under temperature condition;
6. a detachable filter membrane is placed in native system delivery port front, and installing/dismounting is easy, can effectively prevent algaeClass is stopped up delivery port, further purifies effluent quality simultaneously;
7. native system applied solar energy is that Using High-Rate Algae Pond is powered round the clock, has significantly increased the operation of Using High-Rate Algae PondEfficiency and treatment effect, form the round-the-clock running sewage disposal system of a kind of efficient stable, environmental protection and energy saving.
Brief description of the drawings
The structural representation of the temperature control Using High-Rate Algae Pond system that Fig. 1 provides for the utility model;
The top view of the temperature control Using High-Rate Algae Pond system that Fig. 2 provides for the utility model.
Detailed description of the invention
For the utility model is become apparent, hereby with preferred embodiment, and coordinate accompanying drawing to be described in detail below.
Embodiment 1
As shown in Figure 1, 2, be temperature control Using High-Rate Algae Pond system provided by the invention, comprise be provided with water inlet 7,The Using High-Rate Algae Pond 6 of delivery port 14, water inlet 7 is located at the top of Using High-Rate Algae Pond 6 one sides, delivery port 14Be located at the bottom of Using High-Rate Algae Pond 6 opposite sides; In Using High-Rate Algae Pond 6, be provided with at least one rope formula biofilm carrier12; Using High-Rate Algae Pond 6 outer walls are enclosed with Electric radiant Heating Film 15, and Electric radiant Heating Film 15 is connected with control system; AlgalThe pool 6 inwalls are evenly distributed with built-in LED waterproof, illuminating lamp 11, built-in LED waterproof, illuminating lamp 11 withController for solar 2 is connected. Control system comprises the controller for solar 2 being connected with solar panel 1,Controller for solar 2 is connected with one end of battery 3, and the other end of battery 3 connects Electric radiant Heating Film temperature controller 4,Electric radiant Heating Film temperature controller 4 is connected with Electric radiant Heating Film 15; On daytime, adopting solar energy is each parts power supply, at night, holdsThe electric energy storing in battery 3 continues as each parts power supply. Solar panel 1 is monocrystalline silicon plate or polysilicon films,Battery 3 is lead-acid battery, Ni-MH battery, nickel-cadmium cell or lithium battery. In Using High-Rate Algae Pond 6, be provided with spiralAgitator 8, it is connected with controller for solar 2. Using High-Rate Algae Pond 6 bottoms are provided with at least one except algae mud device10, a side of Using High-Rate Algae Pond 6 bottoms is provided with groove 9, while unlatching, is close to Algal except algae mud device 106 bottoms, the pool are to groove 9 direction motions, and Using High-Rate Algae Pond 6 bottoms are positioned at groove 9 places and are provided with row algae valve 16;The other end of battery 3 also connects except algae mud device control system 5, except algae mud device 10 and except algae mud device control systemSystem 5 connects. The interior side near delivery port 14 of Using High-Rate Algae Pond 6 is provided with filter membrane 13, on filter membrane 13The aperture of filtering holes is 8-10 μ m. Rope formula biofilm carrier 12 adopts pet fiberMake.
By water pump from water inlet 7 lifting sewages and import in Using High-Rate Algae Pond 6. Daytime, solar panelThe solar energy after collecting is converted into electric energy by 1, is sent in battery 3 and stored, simultaneously by controller 2Drive the spiral agitator 8 in Using High-Rate Algae Pond 6 at the uniform velocity to turn round, the sewage importing in Using High-Rate Algae Pond 6 is enteredRow circulates, regulates O in the pool2And CO2Concentration and the balanced pool in water temperature, water quality, by algae and carefullyThe assimilation absorption of bacterium and precipitation are removed the polluters such as organic matter, nitrogen, phosphorus and the heavy metal in sewage. NightBetween, making the battery 3 of accumulate on daytime by controller 2 is LED waterproof, illuminating lamp group 11 and spiral agitator8 continue power supply, ensure that algae still can carry out photosynthesis at night, improve oxygen in water and pH value,Strengthen biochemical degradation and assimilation absorption and absorption and precipitation to heavy metal to organic pollution, nitrogen, phosphorus etc.,Improve operational efficiency and the treatment effect of Using High-Rate Algae Pond 6. When summer high temperature, open except algae mud device 10, logicalCross the hunting frequency that control system 5 regulates except algae mud device 10, regularly open the row algae valve 16 of groove 9 simultaneously,Dead algae is discharged. When winter low temperature, open Electric radiant Heating Film 15, regulate temperature in the pool by temperature controller 4Be stabilized in 20-30 DEG C, ensure the normal work of Using High-Rate Algae Pond 6 in winter low temperature situation. Using High-Rate Algae Pond 6The rope formula biofilm carrier 12 of overhung, can be the microorganisms such as algea and bacteria attachment point is provided, and phycomycete is commonRaw body utilizes the rapid enrichment and growth of biofilm carrier 12, is conducive to the polluter in the fast degradation pool. Water outletMouth 14 fronts are provided with filter membrane 13, can effectively tackle algae and other suspended material, purify effluent quality.
It is Shanghai Songjiang district domestic sewage in rural areas by using that sewage is collected in experiment, chemical oxygen demand in sewage (CODCr)Concentration is 186.7-349.5mg/L, ammonia nitrogen (NH3-N) concentration is 21.9-63.5mg/L, total phosphorus (TP)Concentration is 2.8-7.3mg/L. Using High-Rate Algae Pond system dimension: length × wide × height=3.0m × 2.0m × 0.8m, hasEffect depth of water 0.6m, groove width 0.2m, degree of depth 0.1m, water velocity is 0.15-0.25m/s, water temperature is 20-30DEG C. Using High-Rate Algae Pond surrounding outer wall parcel Electric radiant Heating Film, inside is provided with 1 spiral agitator, 2 except algae mud deviceWith 6 built-in LED waterproof, illuminating lamps, 6 pet fiber materials of overhungBiofilm carrier, 4 LED lamps are embedded in bottom, the algae pool, other 2 are embedded in both sides, the algae pool, forProvide ight light source for algae photosynthesis night. Built-in LED waterproof, illuminating lamp and spiral agitator are logicalCross controller for solar and be connected with solar panel with lead-acid accumulator, except algae mud device by control system withLead-acid accumulator is connected, and Electric radiant Heating Film temperature controller is also connected with lead-acid accumulator.
In summer, except algae mud device is with the frequency operation of 2-3 time/h, hydraulic detention time 2d, in not using nightWhile putting the illumination of formula LED lamp, pH excursion: 6.8-7.3 in Using High-Rate Algae Pond system, the variation model of dissolved oxygenEnclose: 1.6-3.1mg/L, water outlet CODCrConcentration 52.6-109.1mg/L, NH3-N concentration 4.7-8.9mg/L,TP concentration 1.6-3.9mg/L; In the time that used Driven by Solar Energy built-in LED lamp as night light source night,PH excursion: 7.2-7.9 in Using High-Rate Algae Pond system, the excursion of dissolved oxygen: 2.8-4.9mg/L, goes outWater CODCrConcentration 39.4-98.5mg/L, NH3-N concentration 2.3-6.5mg/L, TP concentration 1.4-3.6mg/L,To CODCr、NH3The clearance of-N, TP improves 7.4%, 11.9%, 6.5%, wherein, and CODCrDischargeConcentration reaches " pollutant comprehensive discharge standard " secondary standard (GB8978-1996), NH3-N discharge is denseDegree reaches " pollutant comprehensive discharge standard " primary standard (GB8978-1996).
Winter, open Electric radiant Heating Film temperature controller, maintain temperature 20-25 DEG C in the algae pool, hydraulic detention time 4d, notUse the algae pool of Electric radiant Heating Film, water outlet CODCrConcentration 97.3-186.2mg/L, NH3-N concentration 6.6-19.2mg/L,TP concentration 1.8-4.2mg/L; Use the algae pool of Electric radiant Heating Film temperature control, water outlet CODCrConcentration 84.1-114.7mg/L,NH3-N concentration 4.8-12.7mg/L, TP concentration 1.5-3.7mg/L, to CODCr、NH3-N, TP goExcept rate improves 13.5%, 10.3%, 6.2%, wherein, CODCrConcentration of emission reaches " pollutant comprehensive dischargeStandard " secondary standard (GB8978-1996), NH3-N concentration of emission reaches " pollutant comprehensive discharge markAccurate " primary standard (GB8978-1996).
Claims (8)
1. round-the-clock running purifies a temperature control Using High-Rate Algae Pond system for domestic sewage in rural areas by using, it is characterized in that bagDraw together the Using High-Rate Algae Pond (6) that is provided with water inlet (7), delivery port (14), water inlet (7) is located at efficient algaeThe top of the class pool (6) one sides, delivery port (14) is located at the bottom of Using High-Rate Algae Pond (6) opposite side; EfficientlyIn the algae pool (6), be provided with at least one rope formula biofilm carrier (12); Using High-Rate Algae Pond (6) outer wall parcelHave Electric radiant Heating Film (15), Electric radiant Heating Film (15) is connected with control system; Using High-Rate Algae Pond (6) inwall is uniformly distributedThere is built-in LED waterproof, illuminating lamp (11).
2. round-the-clock running as claimed in claim 1 purifies the temperature control Using High-Rate Algae Pond system of domestic sewage in rural areas by using,It is characterized in that, described control system comprises the controller for solar (2) being connected with solar panel (1),Controller for solar (2) is connected with one end of battery (3), and the other end of battery (3) connects electric heatingFilm temperature controller (4), Electric radiant Heating Film temperature controller (4) is connected with Electric radiant Heating Film (15); Built-in LED waterproof, illuminatingLamp (11) is connected with controller for solar (2).
3. round-the-clock running as claimed in claim 2 purifies the temperature control Using High-Rate Algae Pond system of domestic sewage in rural areas by using,It is characterized in that, described solar panel (1) is monocrystalline silicon plate or polysilicon films; Described battery (3)For lead-acid battery, Ni-MH battery, nickel-cadmium cell or lithium battery.
4. round-the-clock running as claimed in claim 2 purifies the temperature control Using High-Rate Algae Pond system of domestic sewage in rural areas by using,It is characterized in that, in described Using High-Rate Algae Pond (6), be provided with spiral agitator (8), itself and controller for solar(2) connect.
5. round-the-clock running as claimed in claim 2 purifies the temperature control Using High-Rate Algae Pond system of domestic sewage in rural areas by using,It is characterized in that, described Using High-Rate Algae Pond (6) bottom is provided with at least one except algae mud device (10), AlgalOne side of bottom, the pool (6) is provided with groove (9), while unlatching, is close to Using High-Rate Algae Pond (6) except algae mud device (10)Bottom is to the motion of groove (9) direction, and Using High-Rate Algae Pond (6) bottom is positioned at groove (9) and locates the row's of being provided with algae valve(16); The other end of battery (3) also connects except algae mud device control system (5), except algae mud device (10) withExcept algae mud device control system (5) connects.
6. round-the-clock running as claimed in claim 1 purifies the temperature control Using High-Rate Algae Pond system of domestic sewage in rural areas by using,It is characterized in that, the side near delivery port (14) in described Using High-Rate Algae Pond (6) is provided with filter membrane (13).
7. round-the-clock running as claimed in claim 6 purifies the temperature control Using High-Rate Algae Pond system of domestic sewage in rural areas by using,It is characterized in that, the aperture of the upper filtering holes of described filter membrane (13) is 8-10 μ m.
8. round-the-clock running as claimed in claim 1 purifies the temperature control Using High-Rate Algae Pond system of domestic sewage in rural areas by using,It is characterized in that, described rope formula biofilm carrier (12) adopts pet fiber to make.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520983520.9U CN205241354U (en) | 2015-12-01 | 2015-12-01 | Round --clock running purifies rural domestic sewage's high -efficient alga pool system of accuse temperature |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520983520.9U CN205241354U (en) | 2015-12-01 | 2015-12-01 | Round --clock running purifies rural domestic sewage's high -efficient alga pool system of accuse temperature |
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| CN205241354U true CN205241354U (en) | 2016-05-18 |
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| CN201520983520.9U Expired - Fee Related CN205241354U (en) | 2015-12-01 | 2015-12-01 | Round --clock running purifies rural domestic sewage's high -efficient alga pool system of accuse temperature |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105347500A (en) * | 2015-12-01 | 2016-02-24 | 东华大学 | All-weather-running temperature control efficient algae pond system for purifying rural domestic sewage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105347500A (en) * | 2015-12-01 | 2016-02-24 | 东华大学 | All-weather-running temperature control efficient algae pond system for purifying rural domestic sewage |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160518 Termination date: 20161201 |