CN204490603U - The reaction unit of phosphate from sewage is efficiently removed without anaerobic phosphorus release - Google Patents
The reaction unit of phosphate from sewage is efficiently removed without anaerobic phosphorus release Download PDFInfo
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- CN204490603U CN204490603U CN201520055381.3U CN201520055381U CN204490603U CN 204490603 U CN204490603 U CN 204490603U CN 201520055381 U CN201520055381 U CN 201520055381U CN 204490603 U CN204490603 U CN 204490603U
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Abstract
The utility model provides a kind of reaction unit and the treatment process of efficiently removing phosphate from sewage without anaerobic phosphorus release, and this device is provided with reactor, DO detection instrument, DO sensor, aeration plate, under meter, water-bath, recycle pump, top go out water pump, gas blower and Controlling System; This device biofilm carrier cost is low, and easy attached microbial, can shorten the startup cycle; After process, water enters support tube inside by capillary action, and biological membrane assembly has filteration, without the need to arranging settling tank; Intelligent control system controls gas blower and replaces start and stop, makes reactor be in (aerobic/anoxic) alternately
nenvironment, realizes the non-traditional efficient dephosphorization without anaerobic phosphorus release; The denitrification dephosphorization of anoxic condition, reduces carbon source requirement; What intelligent control system was implemented replaces (aerobic/anoxic)
naeration strategy, shortens aeration time, decreases power consumption, has saved the energy.
Description
Technical field
The utility model relates to the Application Areas of water technology, specifically a kind of reaction unit efficiently removing phosphate from sewage without anaerobic phosphorus release.
Background technology
Along with the increase of China's wastewater emission amount and widely using of chemical fertilizer, synthetic detergent and agricultural chemicals, nitrogen, phosphorus rise to the principal pollutant in water body gradually.The body eutrophication caused by nitrogen and phosphorus pollution thing---wawter bloom and red tide etc. further causes the deterioration of Water quality, not only have impact on the using function of water body, also compromises HUMAN HEALTH, adds the difficulty of Water purification simultaneously.Algal blooms is the characteristic feature of body eutrophication, although nitrogen and phosphorus all likely become the limiting factor of algal grown, from the relation that algae needs nitrogen, phosphorus, more urgent to the needs of phosphorus.If water body nitrogen stress, can by nitrogen-fixing microorganism in water as some nitrogen-fixing bacteria and cyanobacteria be supplemented.As long as there is phosphorus 0.018 mg/L of lower concentration just can stimulate algal bloom in water body.When total phosphorus in water TP concentration is lower than 0.1 mg/L, the biomass of plant plankton linearly increases with the increase of TP concentration.In most of lakes and reserviors, phosphorus is main limitative nutrient, and the phosphorus load that control water body bears has become the key controlling eutrophication.Therefore, countries in the world are increasingly strict to the regulation of the emission standard of phosphorus, and the phosphorus content of China's " urban wastewater treatment firm pollutant emission standard " GB19819-2002 regulation, one-level A standard is: TP is less than 0.5mg/L, and one-level B standard is: TP is less than 1mg/L.As can be seen here, be the problem that existing Sewage Plant or newly-built Sewage Plant are all faced with sewage deep dephosphorization.
At present, in sewage, the treatment technology of dephosphorization is mainly divided into physisorphtion, chemical precipitation method and biological process.Physisorphtion dephosphorization utilizes the solid matter of some porous or bigger serface to the avidity of phosphate anion in water to realize the process of dephosphorization, absorption method dephosphorization is anti-interference at sorbent material, also there are problems in solution loss and regeneration etc., therefore, absorption method is typically used as auxiliary dephosphorization means, is difficult to the widespread use as main dephosphorization means.The ultimate principle of chemical precipitation method dephosphorization forms insoluble phosphate throw out by adding metal-salt chemical agent, then by solid-liquid separation, it is removed from sewage, its subject matter is that medicament is expensive, working cost is higher, chemical sludge yield is comparatively large, sludge disposal is more difficult, is subject to certain restrictions in practice.Enhanced biological phosphorus removal technique is dephosphorization technique in current most widely used sewage, and the research and apply of technique starts from phase later 1950s, and along with going deep into of research and popularizing of application, technology type constantly increases.In general, enhanced biological phosphorus removal processing cost is lower, and particularly lower to phosphorus concentration waste water has good treatment effect.Conventional reinforced phosphor-removing technique has A/O technique, A
2/ O technique, oxidation ditch process, UCT technique etc.But these techniques also exist technical process complexity, operating parameters is difficult to shortcomings such as controlling, excess sludge difficulty is put.
SBBR technique has the advantage of sequence batch (technique and biomembrance process concurrently, by the control of anaerobism, anoxic, the different operation such as aerobic, completes the process of denitrogenation dephosphorizing, realize sewage disposal integration in a reactor.Its major advantage has, and floor space is little, and processing efficiency is high, and processing power is large and stable, and surplus sludge volume is few.But the Fillers selection of SBBR and operational mode control are the keys of influential system handling property and day-to-day operation cost.Filler is the key components of biofilm reactor, directly affects performance and the processing efficiency of biofilm reactor.In SBBR, the filler of main application has flowing-type gac, polypropylene suspension ball etc., fixed haydite, iron filings, soft fibers, polyethylene etc. at present.As domestic patent CN1709810 selects iron filings as filler, have and do not block, the advantages such as strong shock resistance, but packing layer does not have filteration.Patent CN101168461 is that 10 ~ 200 μm of biological film filters as filter screen substitute traditional second pond and carry out mud-water separation using stainless steel or filter cloth filter screen mean pore size, the microbial film formed has strainability, but carrier screen aperture easily blocks, microbial film upgrades slowly, need regular back flushing, the maintenance management of day-to-day operation is comparatively complicated.In patent CN101863590A, with a kind of built-up type anoxic/aerobic enhanced biological activated carbon dynamic membrane dephosphorization, the sanitary sewage after process, through the dynamic membrane filtering water outlet of bio-enhancement activated carbon precoating, this technique initial investment is high, and day-to-day operation operation easier is large.Although bio-enhancement activated carbon dynamic membrane flux is large, hydraulic detention time is short, technological design is complicated.The operational mode of SBBR decides the requirement of this system to carbon source and power consumption, aerobic/anaerobic SBBR and the anaerobic/anoxic/requirement of aerobic SBBR to carbon source of routine are high, power consumption is high, and this is true still can not to change sewage disposal " consuming energy ".For successful biological phosphate-eliminating, aerobic/anaerobic alternate environment is not required.Therefore, the dephosphorization for classics is theoretical---and anaerobic phosphorus release, aerobic excess ingestion phosphorus propose query, thus, need the SBBR Dephosphorization New Technique developing low-carbon-consumption, less energy-consumption.
In sum, in SBBR, the selection of filler also exists microbial film and upgrades slow, not there is strainability, though or there is strainability, but easily block, need back flushing etc.And the problems such as in saprobia method dephosphorization process, also there is technological design complexity, maintenance management difficulty is large, and carbon source requirement is large, and energy consumption is high, have impact on the practical application of biological process dephosphorization.
Utility model content
The microbial film existed for dephosphorization treatment technology in above-mentioned existing sewage upgrades slow, not there is strainability, though or there is strainability, but easily block, need the defects such as back flushing, the utility model provides a kind of reaction unit efficiently removing phosphate from sewage without anaerobic phosphorus release.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
Efficiently remove the reaction unit of phosphate from sewage without anaerobic phosphorus release, this device is provided with reactor, DO detection instrument, DO sensor, aeration plate, under meter, water-bath, recycle pump, top goes out water pump, gas blower and Controlling System;
Described reactor comprises reactive tank and is hung on the biological membrane assembly in reactive tank, the top of reactive tank sidewall is connected with the water inlet pipe and recycling outlet that are oppositely arranged, the bottom of sidewall is connected with the circulation water inlet pipe and bottom rising pipe that are oppositely arranged, and water inlet pipe and bottom rising pipe, circulation water inlet pipe and recycling outlet are all oppositely arranged on the both sides of reactive tank, circulation water inlet pipe is communicated with through conduit in reactor is outer with recycling outlet, water-bath and recycle pump are arranged on the pipeline between circulation water inlet pipe and recycling outlet, described aeration plate is arranged on the bottom in reactive tank, and be connected with the gas blower outside reactor through conduit, gas blower is connected with Controlling System, described under meter is arranged on the pipeline between aeration plate and gas blower, one end of described DO detection instrument is arranged in reactive tank, the other end is connected with DO sensor, DO sensor is connected with Controlling System,
Described biological membrane assembly comprises back up pad, top rising pipe, Water collecting tube and soft fiber, described back up pad is hung on the top of reactive tank sidewall, Water collecting tube two ends seal, and the sealing cover that its top is arranged is fixedly connected with back up pad, the sealing cover of top rising pipe through Water collecting tube top to be plugged in Water collecting tube and to extend to bottom Water collecting tube, top and the top of top rising pipe go out water pump and are connected, the bottom of Water collecting tube sidewall is provided with water outlet, water outlet is communicated with bottom rising pipe by conduit, the sidewall of Water collecting tube offers some filtration apertures, one end of soft fiber is arranged on filters in aperture, the other end freely extends outside Water collecting tube,
Described soft fiber adopts blending cotton thread or synthon, and its diameter is 0.5mm ~ 2mm;
Described Water collecting tube is synthetic glass or polypropylene, vinyon cylinder, wall thickness 3 ~ 8mm;
Described filtration hole diameter is 4 ~ 6mm, and filtering small hole center spacing is 20 ~ 30mm;
Described reactive tank is square or circular, and the volume of biological membrane assembly accounts for 1/5 of tank effective volume;
Distance bottom described water outlet and Water collecting tube is 1mm;
The beneficial effects of the utility model:
Reaction unit and the treatment process of efficiently removing phosphate from sewage without anaerobic phosphorus release that the utility model provides, biofilm carrier cost is low, easy attached microbial, can shorten the startup cycle; After process, water enters support tube inside by capillary action, and biological membrane assembly has filteration, without the need to arranging settling tank; Intelligent control system controls gas blower and replaces start and stop, makes reactor be in (aerobic/anoxic) alternately
nenvironment, realizes the non-traditional efficient dephosphorization without anaerobic phosphorus release; The denitrification dephosphorization of anoxic condition, reduces carbon source requirement; What intelligent control system was implemented replaces (aerobic/anoxic)
naeration strategy, shortens aeration time, decreases power consumption, has saved the energy; Hydraulic detention time is short, reduces reactor body sum floor space, can reduce initial investment; Intelligentized control method reactor for implementing phosphorus removing method in the utility model sewage makes simple, easy to operate, Automated condtrol; The utility model decreases power consumption and the carbon source requirement of dephosphorization in sewage, reduces initial investment, improves processing efficiency, thus improves the practicality without dephosphorization in the non-traditional high-efficiency sewage of anaerobic phosphorus release.
Accompanying drawing explanation
Fig. 1 the utility model reaction unit structural representation;
Fig. 2 the utility model structure of reactor orthographic plan;
Fig. 3 the utility model structure of reactor A-A sectional view;
Fig. 4 the utility model structure of reactor B-B sectional view;
Fig. 5 the utility model biological membrane assembly structural representation;
Reference numeral: 1, reactive tank, 2, biological membrane assembly, 3, DO detection instrument, 4, water inlet pipe, 5, DO sensor, 6, recycling outlet, 7, circulation water inlet pipe, 8, aeration plate, 9, bottom rising pipe, 10, blow-down pipe, 11, under meter, 12, water-bath, 13, recycle pump, 14, top goes out water pump, 15, gas blower, 16, Controlling System, 2-1, back up pad, 2-2, top rising pipe, 2-3, Water collecting tube, 2-4, filtration aperture, 2-5, soft fiber, 2-6, water outlet.
Embodiment
Below in conjunction with embodiment, the utility model is further elaborated.
As shown in the figure: the reaction unit efficiently removing phosphate from sewage without anaerobic phosphorus release, its this device is provided with reactor, DO detection instrument 3, DO sensor 4, aeration plate 8, under meter 11, water-bath 12, recycle pump 13, top goes out water pump 14, gas blower 15 and Controlling System 16;
The biological membrane assembly 2 that described reactor comprises square reactive tank 1 and is hung in reactive tank 1, wherein the volume of biological membrane assembly 2 accounts for 1/5 of tank effective volume, the top of reactive tank 1 sidewall is connected with the water inlet pipe 4 and recycling outlet 6 that are oppositely arranged, the bottom of sidewall is connected with the circulation water inlet pipe 7 and bottom rising pipe 9 that are oppositely arranged, and water inlet pipe 4 and bottom rising pipe 9, circulation water inlet pipe 7 and recycling outlet 6 are all oppositely arranged on the both sides of reactive tank 1, circulation water inlet pipe 7 is communicated with through conduit in reactor is outer with recycling outlet 6, water-bath 12 and recycle pump 13 are arranged on the pipeline between circulation water inlet pipe 7 and recycling outlet 6, described aeration plate 8 is arranged on the bottom in reactive tank 1, and be connected with the gas blower 15 outside reactor through conduit, gas blower 15 is connected with Controlling System 16, described under meter 11 is arranged on the pipeline between aeration plate 8 and gas blower 15, one end of described DO detection instrument 3 is arranged in reactive tank 1, the other end is connected with DO sensor 4, DO sensor 4 is connected with Controlling System 16,
Described biological membrane assembly 2 comprises back up pad 2-1, top rising pipe 2-2, the blending cotton thread soft fiber 2-5 of wall thickness to be the synthetic glass Water collecting tube 2-3 of 3 ~ 8mm and diameter be 0.5mm ~ 2mm, described back up pad 2-1 is hung on the top of reactive tank 1 sidewall, Water collecting tube 2-3 two ends seal, and the sealing cover that its top is arranged is fixedly connected with back up pad 2-1, the sealing cover of top rising pipe 2-2 through Water collecting tube 2-3 top to be plugged in Water collecting tube 2-3 and to extend to bottom Water collecting tube 2-3, top and the top of top rising pipe 2-2 go out water pump 14 and are connected, the sidewall of Water collecting tube 2-3 distance bottom 1mm is provided with water outlet 2-6, water outlet 2-6 is communicated with bottom rising pipe 9 by conduit, the sidewall of Water collecting tube 2-3 offering some diameters is 5mm, between centers is the filtration aperture 2-4 of 25mm, one end of soft fiber 2-5 is arranged on filters in aperture 2-4, the other end freely extends outside Water collecting tube 2-3.
A kind of method utilizing reaction unit as above to remove phosphate from sewage, Controlling System is by the DO value in DO detection instrument 3 and DO sensor 4 METHOD FOR CONTINUOUS DETERMINATION reactive tank 1, start aeration plate 8 when DO value is less than the lower bound DO value of setting and carry out aeration, until DO value stops aeration plate 8 after being greater than the lower bound DO value of setting, start recycle pump 13 makes water pass through circulation water inlet pipe 7 with recycling outlet 6 at reactive tank 1 internal recycle simultaneously, recycle pump 13 is stopped when DO value is less than the lower bound DO value of setting, again start aeration plate 8 simultaneously and carry out aeration, make to form aerobic and anaerobic environment alternately in reactive tank 1, thus by the aerobic suction phosphorus of polyP bacteria and Denitrifying Phosphate Accumulating Organisms anoxic picked-up phosphorus, realize efficient dephosphorization in sewage,
Above-mentioned DO detection instrument and water quality dissolved oxygen meter, DO sensor and water quality dissolved oxygen sensor.
The method of the utility model foundation belongs to microbial film treatment process, the aerobic suction phosphorus of application polyP bacteria, anoxic denitrification picked-up phosphorus, and realize dephosphorization in sewage, the concrete theoretical foundation of its dephosphorization is:
At aerobic stage, polyP bacteria take oxygen as electron acceptor(EA), the poly-β-hydroxybutyric acid PHB stored in decomposer and liver starch are to provide energy for cell growth, breeding, part energy can supply polyP bacteria active absorption phosphoric acid salt simultaneously, and store up in vivo for growth needs with the form of poly-phosphate, the aerobic suction phosphorus phenomenon of Here it is polyP bacteria.
It is as follows that aerobic section inhales phosphorus reaction equation:
（1）
At anoxic phases, in reactor, the facultative polyP bacteria of enrichment is with NO
3-with oxygen as electron acceptor(EA), with the liver starch synthesized in body for energy substance, store up phosphoric acid salt in sewage in vivo with the form of poly-phosphate, realize dephosphorization in sewage.
Anoxic section denitrification dephosphorization reaction equation is as follows:
（2）
Therefore, utilize intelligent control system, create an alternate run aerobic/anaerobic environment, enrichment aerobic phosphorous accumulating bacterium and facultative polyP bacteria in reactor, realize non-traditional without dephosphorization in the sewage of anaerobic phosphorus release; Anoxic phases denitrification dephosphorization, does not need outer carbon source, reduces carbon source requirement, (aerobic/anoxic)
nalternate run, intermittent aeration, decreases power consumption, saves the energy.
The control mechanism of intelligent control system is: under condition of different temperatures, the time of the nitration denitrification reaction under Current Temperatures condition is determined according to dissolved oxygen lifting slope in reactor, complete the nitrification and denitrification of denitrification process and dephosphorization bacterial to nitrifier and denitrifying bacteria to inhale the time of releasing phosphorus and control, and then the DO value of Controlling System, reach the object of denitrogenation dephosphorizing; The control method of intelligent control system: the oxygen amount → control aeration time required for the respiration rate of the DO value in METHOD FOR CONTINUOUS DETERMINATION reactor → calculate microorganism → calculate next of microbial respiratory reaction time.
After intelligentized control method SBBR starts, system enters calculation stages, this stage comprises aeration phase and anoxic phases, after aeration phase aerating apparatus aeration 30min, if DO>=lower bound DO value, if when stopping aeration DO≤lower bound DO value, after aerating apparatus continues operation 10 min, again compare with lower bound DO value, until meet DO>=lower bound DO value, start reflux, if after anoxic backflow 30min during DO>=lower bound DO value, after reflux continues to run 10min, again compare with lower bound DO value, until meet DO≤lower bound DO value, in this computation process, software is elevated slope according to DO in reactor and determines that nitration denitrification and dephosphorization bacterial inhale the time of releasing phosphorus reaction and carrying out under this temperature condition, the i.e. aerobic-anoxic time of step of reaction, the nitration denitrification time calculating gained respectively deducts aeration and the anoxic return time of calculation stages, be the aeration time T in step of reaction
1with hypoxic exposure T
2, step of reaction is 1 reaction time, i.e. aeration time T with 2h
1with hypoxic exposure T
2sum is 120min, and, different cycles, T
1, T
2value different, T
1, T
2value changes with the water temperature in reactor and DO concentration, in the utility model, arranging lower bound DO is 0.5mg/L, so even if at stopping aeration phase, in reactor, DO minimum value is 0.5mg/L, is in anoxic condition, and therefore, reactor exists without anaerobic state in operational process.
Pending water flows into from the water inlet pipe 4 on sidewall of reactor top, controls (aerobic/anoxic) alternately
nenvironment, on microbial film, microorganism sludge remains on about 25d age, hydraulic detention time is 4-6h, after process, water enters Water collecting tube 2-3 inside by capillary action, water outlet goes out water pump 14 by top and extracts out from the top rising pipe 2-2 in Water collecting tube 2-3, or flow out from the water outlet 2-6 sidewall bottom Water collecting tube 2-3 by gravity, in Fig. 1, the direction of arrow is water (flow) direction.
The utility model suitable treatment municipal effluent, sanitary sewage, food wastewater, or the wastewater from chemical industry that water quality is similar.
Synthetic municipal effluent composition is: COD300 mg/L, TN30 mg/L, TP5 mg/L, C/N is 10.0, C/P be 60.0, pH is 6.8-7.2, the mean residence time of HRT treatment sewage in reactor is 6 hours, temperature controls at 25 ± 1 DEG C, adopts of the present utility modelly efficiently to remove phosphate from sewage reaction unit without anaerobic phosphorus release, and aerating system controls aeration by intelligent control system, intelligent control system is implemented to control reactor and is run, and creates alternately (aerobic/anoxic)
nenvironment, water outlet TP concentration 0.02 mg/L, lower than the one-level A standard of " municipal sewage plant's pollutant emission standard " GB89198-2002.
Claims (6)
1. efficiently remove the reaction unit of phosphate from sewage without anaerobic phosphorus release, it is characterized in that: this device is provided with reactor, DO detection instrument (3), DO sensor (4), aeration plate (8), under meter (11), water-bath (12), recycle pump (13), top go out water pump (14), gas blower (15) and Controlling System (16);
Described reactor comprises reactive tank (1) and is hung on the biological membrane assembly (2) in reactive tank (1), the top of reactive tank (1) sidewall is connected with the water inlet pipe (4) and recycling outlet (6) that are oppositely arranged, the bottom of sidewall is connected with the circulation water inlet pipe (7) and bottom rising pipe (9) that are oppositely arranged, and water inlet pipe (4) and bottom rising pipe (9), circulation water inlet pipe (7) and recycling outlet (6) are all oppositely arranged on the both sides of reactive tank (1), circulation water inlet pipe (7) is communicated with through conduit in reactor is outer with recycling outlet (6), water-bath (12) and recycle pump (13) are arranged on the pipeline between circulation water inlet pipe (7) and recycling outlet (6), described aeration plate (8) is arranged on the bottom in reactive tank (1), and be connected with the gas blower (15) outside reactor through conduit, gas blower (15) is connected with Controlling System (16), described under meter (11) is arranged on the pipeline between aeration plate (8) and gas blower (15), one end of described DO detection instrument (3) is arranged in reactive tank (1), the other end is connected with DO sensor (4), DO sensor (4) is connected with Controlling System (16),
Described biological membrane assembly (2) comprises back up pad (2-1), top rising pipe (2-2), Water collecting tube (2-3) and soft fiber (2-5), described back up pad (2-1) is hung on the top of reactive tank (1) sidewall, Water collecting tube (2-3) two ends seal, and the sealing cover that its top is arranged is fixedly connected with back up pad (2-1), top rising pipe (2-2) sealing cover through Water collecting tube top to be plugged in Water collecting tube (2-3) and to extend to Water collecting tube (2-3) bottom, top and the top of top rising pipe (2-2) go out water pump (14) and are connected, the bottom of Water collecting tube (2-3) sidewall is provided with water outlet (2-6), water outlet (2-6) is communicated with bottom rising pipe (9) by conduit, the sidewall of Water collecting tube (2-3) offers some filtration apertures (2-4), one end of soft fiber (2-5) is arranged on filters in aperture (2-4), the other end freely extends outward to Water collecting tube (2-3).
2. the reaction unit efficiently removing phosphate from sewage without anaerobic phosphorus release as claimed in claim 1, it is characterized in that: described soft fiber (2-5) adopts blending cotton thread or synthon, its diameter is 0.5mm ~ 2mm.
3. the reaction unit efficiently removing phosphate from sewage without anaerobic phosphorus release as claimed in claim 1, is characterized in that: described Water collecting tube (2-3) is synthetic glass or polypropylene, vinyon cylinder, wall thickness 3 ~ 8mm.
4. the reaction unit efficiently removing phosphate from sewage without anaerobic phosphorus release as claimed in claim 1, is characterized in that: described filtration aperture (2-4) diameter is 4 ~ 6mm, and filtering aperture (2-4) between centers is 20 ~ 30mm.
5. the reaction unit efficiently removing phosphate from sewage without anaerobic phosphorus release as claimed in claim 1, is characterized in that: described reactive tank (1) is for square or circular, and the volume of biological membrane assembly (2) accounts for 1/5 of tank effective volume.
6. the reaction unit efficiently removing phosphate from sewage without anaerobic phosphorus release as claimed in claim 1, is characterized in that: described water outlet (2-6) is 1mm with the distance of Water collecting tube (2-3) bottom.
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| CN201520055381.3U CN204490603U (en) | 2015-01-27 | 2015-01-27 | The reaction unit of phosphate from sewage is efficiently removed without anaerobic phosphorus release |
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| CN201520055381.3U CN204490603U (en) | 2015-01-27 | 2015-01-27 | The reaction unit of phosphate from sewage is efficiently removed without anaerobic phosphorus release |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104591391A (en) * | 2015-01-27 | 2015-05-06 | 洛阳理工学院 | Reaction device for effectively removing phosphate from sewage without anaerobic phosphate release and treatment method |
| CN109607768A (en) * | 2019-01-22 | 2019-04-12 | 天津大学 | Sequencing batch biofilm reactor device |
| CN109734261A (en) * | 2019-03-18 | 2019-05-10 | 大连交通大学 | Domestic sewage denitrifying-dephosphorizing purification tank |
| CN110040916A (en) * | 2019-05-25 | 2019-07-23 | 安徽华骐环保科技股份有限公司 | A kind of complete processing system and its processing method of black and odorous water |
| CN112340835A (en) * | 2020-11-06 | 2021-02-09 | 陶平 | Domestic sewage treatment equipment and treatment method thereof |
-
2015
- 2015-01-27 CN CN201520055381.3U patent/CN204490603U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104591391A (en) * | 2015-01-27 | 2015-05-06 | 洛阳理工学院 | Reaction device for effectively removing phosphate from sewage without anaerobic phosphate release and treatment method |
| CN109607768A (en) * | 2019-01-22 | 2019-04-12 | 天津大学 | Sequencing batch biofilm reactor device |
| CN109734261A (en) * | 2019-03-18 | 2019-05-10 | 大连交通大学 | Domestic sewage denitrifying-dephosphorizing purification tank |
| CN110040916A (en) * | 2019-05-25 | 2019-07-23 | 安徽华骐环保科技股份有限公司 | A kind of complete processing system and its processing method of black and odorous water |
| CN112340835A (en) * | 2020-11-06 | 2021-02-09 | 陶平 | Domestic sewage treatment equipment and treatment method thereof |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20160127 |
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| EXPY | Termination of patent right or utility model |