CN205151893U - Sewage activity is heavy pond of hydrolysising just - Google Patents
Sewage activity is heavy pond of hydrolysising just Download PDFInfo
- Publication number
- CN205151893U CN205151893U CN201520456984.4U CN201520456984U CN205151893U CN 205151893 U CN205151893 U CN 205151893U CN 201520456984 U CN201520456984 U CN 201520456984U CN 205151893 U CN205151893 U CN 205151893U
- Authority
- CN
- China
- Prior art keywords
- sedimentation tank
- preliminary sedimentation
- stirrer
- sewage
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Abstract
The utility model relates to a sewage activity is heavy pond of hydrolysising just, it specifically for in the spoke STREAMING or erect the STREAMING and just sink and be close sludge deposit department in the pond and set up the mixer, sets up reverse connection of zymotic fluid back flow of solid -liquid separation ware, solid -liquid separation ware in the exit of mud pipe just heavy pond. Sewage activity is heavy pond of hydrolysising just, handle the volatility organic acid concentration in the sewage of back through improving just to sink, for in the epilogue step gather the phosphorus fungus and the denitrification fungus provides high -quality carbon source, can reduce the nitrogen in the sewage, the concentration of phosphorus, make the sewage after handling change in reaching one -level A standard, in addition the utility model discloses an active heavy chi jike that hydrolysises just is applied to old factory and transforms, also can be applied to the construction of new factory, has wide application prospect.
Description
Technical field
The utility model belongs to the preprocessing technical field of sewage, is specifically related to a kind of sewage activity just heavy hydrolytic tank.
Background technology
At present, the emission standard increasingly stringent of country to Sewage Plant, many sewage works all require to perform " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) one-level A standard.Because China's most area municipal sewage plant water-inlet carbon source is not enough, the content of total nitrogen and total phosphorus is higher, and the organism that the organism major part in sewage is non-solubility or is not easily degraded, therefore polyP bacteria and denitrifying bacteria can not remove the nitrogen phosphorus in sewage effectively, and therefore the Nitrogen/Phosphorus Removal of sewage is difficult to reach one-level A standard.For solving the problem of wastewater influent carbon source deficiency, most of Sewage Plant does not all arrange preliminary sedimentation tank, or surmounts from preliminary sedimentation tank, and sewage directly enters biochemical reaction tank, runs off in order to avoid carbon source.
Even if but sewage directly enters biochemical reaction tank, still cannot solve the problem of carbon source deficiency, Nitrogen/Phosphorus Removal is stable not.And for SS in many water inlets higher or containing a large amount of inorganic particle sewage for, owing to not establishing preliminary sedimentation tank, SS and a large amount of inorganic particle can not be removed effectively, add the load of biochemical reaction tank, inorganic particle is caused to pile up at biochemical reaction tank, affect anaerobism, anoxia stirring, but also Aerobic Pond aeration resistance can be increased.
Utility model content
(1) technical problem that will solve
Low for carbon content in sewage of intaking in prior art, the defect that in sewage, nitrogen, phosphorus cannot be removed efficiently, the utility model provides a kind of active just heavy hydrolytic tank.
(2) technical scheme
Activity described in the utility model just heavy hydrolytic tank is arrange stirrer at traditional radial-flow or vertical-flow preliminary sedimentation tank, arrange solid-liquid separator, and the fermentation liquor backflow pipe Opposite direction connection of described solid-liquid separator is to described preliminary sedimentation tank in the exit of shore pipe.The utility model arranges stirrer in preliminary sedimentation tank, can make fully to contact into water with the suspended sludge at the bottom of pond, suspended sludge is through hydrolysed ferment, macromole hardly degraded organic substance is wherein converted into the voltaile fatty acid of easily degraded, improves VFA (VFA) concentration in the rear sewage of process.In the exit of mud discharging mouth, solid-liquid separator is set, insoluble inorganics such as mud and sand can be removed, simultaneously, fermented liquid and dissolved organic matter are back to preliminary sedimentation tank, fermented liquid continues to process follow-up sewage, and dissolved organic matter enters next step treatment facility with water outlet, improves the concentration of soluble carbon VFA in water outlet, be easy to be utilized by polyP bacteria and denitrifying bacteria, thus provide the carbon source of high-quality for follow-up anaerobic phosphorus release and anti-nitration reaction.
In the utility model, described paddle place plane is perpendicular, and described paddle place plane and the diametric angle of described preliminary sedimentation tank are 30 ° ~ 50 °.Paddle place plane is perpendicular, can realize the effective stirring to suspended sludge, not cause the muddiness of pool bottom sludge simultaneously, paddle place plane and the circle pond radial direction of stirrer have the angle of 30 ~ 50 °, stirring area can be expanded, realize the abundant stirring to suspended sludge.
In the utility model, the distance apart from sludgd deposition place bottom the paddle of described stirrer is 0.5 ~ 1.5m.If stirrer distance mud is too far away, cannot play good mixing effect to suspended sludge, if too near, easily be stirred by insoluble sludge, cause the entirety of Chi Shui muddy, cannot realize the precipitation of insolubles, the distance of 0.5 ~ 1.5m can avoid the generation of above situation.
In the utility model, arrange guide shell at described sewage inlet place, described stirrer is 4m ~ 6m apart from the horizontal throw that described guide shell exports.Arrange guide shell can realize water inlet and flow to top from the bottom of preliminary sedimentation tank, thus realize the abundant sedimentation of insolubles and intake and fully the contacting of pool bottom sludge.If stirrer too closely can affect the flow direction of water inlet with the distance of guide shell, can not realize the sufficient sedimentation of insolubles, therefore the setting of stirrer should dodge the outlet of guide shell, stirrer apart from guide shell 4 ~ 6 meters can eliminate on feed water flow to impact.
In the utility model, described stirrer is by power density 2 ~ 3w/m
3evenly install in pond.Can realize fully stirring suspended sludge ground at the bottom of pond.
In the utility model, between the fermentation liquor backflow pipe of described solid-liquid separator and described preliminary sedimentation tank, be connected with reflux pump.The soluble substances such as the active sludge flowed out from solid-liquid separator can be back to preliminary sedimentation tank by reflux pump.
In the utility model, described solid-liquid separator is centrifugation formula.
In the utility model, described preliminary sedimentation tank is vertical-flow preliminary sedimentation tank, is provided with the taper bucket of upper opening at the bottom of the pond of described preliminary sedimentation tank, and the gradient of described bucket is 50 ~ 60 °, slope aspect along described bucket arranges shore pipe, and the outlet of described shore pipe connects described solid-liquid separator; The top of described preliminary sedimentation tank is provided with water leg along the horizontal direction of described preliminary sedimentation tank pool wall, water outlet is provided with in described water leg, the fermentation liquor backflow pipe Opposite direction connection of described solid-liquid separator is to described preliminary sedimentation tank, and its level attitude is between described bucket upper opening and described water leg; Reflecting curtain is provided with below the outlet of described guide shell, the paddle place plane of described stirrer is perpendicular, described perpendicular and the diametric angle of described preliminary sedimentation tank are 30 ° ~ 50 °, apart from described sludgd deposition place 0.5 ~ 1.5m bottom described paddle; Described stirrer is 4m ~ 6m apart from the horizontal throw that described guide shell exports; Described stirrer is by power density 2 ~ 3w/m
3evenly install in pond.
In the utility model, described preliminary sedimentation tank is radial-flow preliminary sedimentation tank, the Chi Di center of described preliminary sedimentation tank is provided with water inlet, described water inlet connects described guide shell, the bottom of described guide shell is provided with 4 ~ 8 water outlets, suction dredger is provided with at the bottom of described pond, the outlet of described suction dredger connects described solid-liquid separator, the top of described preliminary sedimentation tank is provided with water leg along the horizontal direction of described preliminary sedimentation tank pool wall, water outlet is provided with in described water leg, preliminary sedimentation tank described in the fermentation liquor backflow pipe Opposite direction connection of described solid-liquid separator, its level attitude is positioned under institute's effluent trough; The paddle place plane of described stirrer is perpendicular, and described perpendicular and the diametric angle of described preliminary sedimentation tank are 30 ° ~ 50 °, apart from described sludgd deposition place 0.5 ~ 1.5m bottom described paddle; Described stirrer is 4m ~ 6m apart from the horizontal throw that described guide shell exports; Described stirrer is by power density 2 ~ 3w/m
3evenly install in pond.
In the utility model, described preliminary sedimentation tank upper surface is also provided with away bridge, walks on bridge described in described stirrer hangs on.
The activity described in the utility model just heavy hydrolytic tank concrete operations of disposing of sewage, its step is as follows,
1) preculture of mud: constantly pass into sewage in preliminary sedimentation tank, reach 3000mg/L to sludge quantity wherein, sludge age reaches 5 ~ 10d;
2) process of waste water: regulate the power density of described stirrer to be 2 ~ 3w/m
3, Xiang Chizhong passes into sewage, and the concentration controlling mud is 5000 ~ 7000mg/L, and the hydraulic detention time controlling sewage is 3-4 hour, and the sewage processed enters next step treatment facility by water outlet.
3) separation of mud
When the sludge accumulation in preliminary sedimentation tank is to time a certain amount of, discharged by mud by mud discharging mouth, under the effect of solid-liquid separator, insoluble inorganics is discharged, and the organism of solubility and fermentation liquor backflow are to preliminary sedimentation tank.
(3) beneficial effect
1) active just heavy hydrolytic tank can realize the function of preliminary sedimentation tank, a large amount of SS is trapped in settling tank, avoids entering biochemical reaction tank, increase biochemical reaction load, avoid the deposition of inorganic particle in reaction tank, thus waste anaerobic/anoxic reaction tank stirs and the energy consumption of aerobic aeration.
2) active just heavy hydrolytic tank is by conservative control sludge-drainage time, and can ensure sludge retention time enough in pond, make high concentration sludge hydrolysed ferment at the bottom of pond, produce a large amount of VFA (voltaile fatty acid), reinforced anaerobic releases the effect of phosphorus.
3) in pond, stirrer is set, makes fully to mix with suspended sludge at the bottom of pond into water, by under the effect of anaerobic hydrolysis bacterium at the bottom of the larger molecular organics in water inlet and pond, there is acidication, be converted into VFA, VFA content in water outlet is increased, for subsequent biochemical reaction provides sufficient high-quality carbon source.
4) mud of discharging is through the process of equipment for separating liquid from solid, and fermented liquid is returned in active just heavy hydrolytic tank again, and mud, then through overdraft, is directly discharged outside factory.Reduce sludge treatment load on the one hand.On the other hand, refuse is made full use of, energy-conserving and environment-protective.
5) be suitable for raw waste water factory to transform, former vacant preliminary sedimentation tank transformed, fully excavated the high-quality carbon source (VFA) in sewage and primary sludge, can by denitrifying bacteria and polyP bacteria utilize, to improve denitrogenation and phosphor-removing effect.
Accompanying drawing explanation
Fig. 1 is vertical-flow activity just heavy hydrolytic tank sectional view
Fig. 2 is radial-flow activity just heavy hydrolytic tank orthographic plan
Fig. 3 is radial-flow activity just heavy hydrolytic tank sectional view
In figure, 1 is water inlet, and 2 is walk bridge, and 3 is central draft tubes, 4 is frequency-conversion agitators, and 5 is water legs, and 6 is water outlets, and 7 is rotate single-tube suction dredge, 8 is shore pipes, and 9 is solid-liquid separators, and 10 is fermentation liquor backflow pumps, 11 is body refuse pipes, and 12 is fermentation liquor backflow pipes, and 13 is mud level meters, 14 is sludge concentration meters, and 15 is guide shell flow-out holes, and 16 is buckets, 17 is base slopes, and 18 is guide shell hydraucones, and 19 is reflecting curtains.
Embodiment
Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
Embodiment 1
The present embodiment relates to a kind of circular vertical-flow sewage activity just heavy hydrolytic tank, and its concrete structure is as Fig. 1:
Described preliminary sedimentation tank is circular vertical-flow preliminary sedimentation tank, and be provided with the taper bucket 16 of upper opening at the bottom of the pond of described preliminary sedimentation tank, the slope aspect along described bucket arranges shore pipe 8, and the outlet of described shore pipe 8 connects described solid-liquid separator 9; The top of described preliminary sedimentation tank is provided with water leg 5 along the horizontal direction of described preliminary sedimentation tank pool wall, water outlet 6 is provided with in described water leg, fermentation liquor backflow pipe 12 Opposite direction connection of described solid-liquid separator 9 is to described preliminary sedimentation tank, and its level attitude is between described bucket 16 and described water leg 5; Be provided with reflecting curtain 19 below the outlet of described guide shell 3, the paddle place plane of described stirrer 4 is perpendicular, and described perpendicular and the diametric angle of described preliminary sedimentation tank are 30 °, apart from described sludgd deposition place 1m bottom described paddle; Described stirrer is 4m apart from the horizontal throw that described guide shell 3 exports; Described stirrer is by power density 2w/m
3evenly install in pond.
The gradient of described taper bucket is 50 °.
The diameter of described guide shell 3 is 1 ~ 2m, and end is provided with hydraucone 18.
Described hydraucone 18 is 2 ~ 3m apart from the distance bottom described bucket.
The fermentation liquor backflow pipe that described solid-liquid separator is provided with and body refuse pipe 11, be connected with fermentation liquor backflow pump 10 between described solid-liquid separator and preliminary sedimentation tank.
Described preliminary sedimentation tank upper surface is also provided with away bridge 2, walks on bridge 2 described in described stirrer 4 hangs on, and is also provided with sludge concentration meter (not marking) in vertical-flow preliminary sedimentation tank.
Embodiment 2
The present embodiment relates to a kind of circular radial-flow sewage activity just heavy hydrolytic tank, and its vertical view is as Fig. 2, and its sectional elevation is as Fig. 3:
Described preliminary sedimentation tank is circular radial-flow preliminary sedimentation tank, the Chi Di center of described preliminary sedimentation tank is provided with water inlet 1, described water inlet 1 is provided with central draft tube 3, it is the cone of upward opening centered by water inlet at the bottom of described pond, be provided with at the bottom of described pond and rotate single-tube suction dredge 7, the outlet of described suction dredger connects described solid-liquid separator 9, the top of described preliminary sedimentation tank is provided with water leg 5 along the horizontal direction of described preliminary sedimentation tank pool wall, water outlet 6 is provided with in described water leg, preliminary sedimentation tank described in fermentation liquor backflow pipe 12 Opposite direction connection of described solid-liquid separator 9, its level attitude is positioned under described effluent trough 5.The paddle place plane of described stirrer 4 is perpendicular, and described perpendicular and the diametric angle of described preliminary sedimentation tank are 50 °, apart from described sludgd deposition place 1.5m bottom described paddle; Described stirrer is 6m apart from the horizontal throw that described guide shell exports; Described stirrer is by power density 3w/m
3evenly install in pond.
The diameter of described guide shell 3 is 1 ~ 2m, and guide shell has flow-out hole 15 near bottom, intakes by flow-out hole inflow preliminary sedimentation tank.
Fermentation liquor backflow pump 10 is connected with between the fermentation liquor backflow pipe that described solid-liquid separator is provided with and preliminary sedimentation tank.
Described preliminary sedimentation tank upper surface is also provided with away bridge 2, walks on bridge 2 described in described stirrer 4 hangs on.
Arrange mud level meter 13 and sludge concentration meter 14 in described preliminary sedimentation tank, mud level meter and sludge concentration meter stretch into underwater 1m.
Embodiment 3
The present embodiment relates to and uses the just heavy hydrolytic tank application of disposing of sewage of sewage activity described in embodiment 1, and described sewage takes from East, Kaifeng Sewage Plant, and its concrete operations are as follows:
1) preculture of mud: constantly pass into sewage to preliminary sedimentation tank, reaches 3000mg/L to mud wherein;
2) process of waste water: regulate the power density of described stirrer to be 2-3W/m
3, Xiang Chizhong constantly passes into sewage, and the hydraulic detention time controlling sewage is 3-4 hour, and the sewage processed enters next step treatment facility by water outlet; In the process of process, along with the accumulation of mud, mud is discharged from mud discharging mouth automatically, and use solid-liquid separator to process the mud of discharging, insolubles is discharged, and fermentation liquor backflow, to preliminary sedimentation tank, carries out circular treatment to waste water.
Subsequent step adopts AAO treatment process.Sewage: BOD before process
5≤ 80mg/L; CODcr≤250mg/L; SS≤120mg/L; TN≤45mg/L; NH
3-N≤35mg/L; TP≤5mg/L.
Final outflow water water quality is:
BOD
5≤6mg/L；CODcr≤40mg/L；SS≤7mg/L；TN≤12mg/L；NH
3-N≤0.5mg/L；TP≤0.5mg/L。
Water outlet can reach country's " urban wastewater treatment firm pollutant emission standard " one-level A standard.
Embodiment 4
The present embodiment relates to and uses sewage activity described in the embodiment 2 just heavy hydrolytic tank technique of disposing of sewage, and described sewage takes from certain Sewage Plant, and its concrete operations are as follows:
1) preculture of mud: constantly pass into sewage in preliminary sedimentation tank, reaches 3000mg/L to mud wherein;
2) process of waste water: regulate the power density of described stirrer to be 2-3W/m
3, Xiang Chizhong constantly passes into sewage, and the hydraulic detention time controlling sewage is 3 ~ 4 hours, and the sewage processed passes into next step sewage disposal device by water outlet; In the process of process, the concentration controlling described mud is 5000 ~ 7000mg/L.
3) suction of mud: when mud level meter reaches 4m, need aspirate mud, and its concrete operations, for stopping stirrer after 1 hour, rotate pond bill kept on file pipe mud-sucking device, aspirate mud.
Subsequent step adopts AAO treatment process.Sewage: BOD before process
5≤ 100mg/L; CODcr≤280mg/L; SS≤120mg/L; TN≤45mg/L; NH
3-N≤30mg/L; TP≤4mg/L.
Final outflow water water quality is:
BOD
5≤7mg/L；CODcr≤45mg/L；SS≤8mg/L；TN≤11mg/L；NH
3-N≤0.5mg/L；TP≤0.5mg/L。
Water outlet can reach country's " urban wastewater treatment firm pollutant emission standard " one-level A standard.
Comparative example 1
Compare with embodiment 3, its difference is, does not adopt the first heavy hydrolytic tank used in embodiment 3, adopts the vertical-flow preliminary sedimentation tank of tradition not arranging stirrer and solid-liquid separator to carry out just heavy process to sewage, identical to other processing parameters in sewage treatment process, BOD in final sewage water outlet
5≤ 10mg/L; CODcr≤50mg/L; SS≤8mg/L; TN≤19mg/L; NH
3-N≤0.5mg/L; TP≤0.8mg/L.TN exceeds standard, and can not reach country's " urban wastewater treatment firm pollutant emission standard " one-level A standard.
Although above done detailed description to the utility model with a general description of the specific embodiments, on the utility model basis, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, these modifications or improvements on the basis of not departing from the utility model spirit, all belong to the scope that the utility model is claimed.
Claims (8)
1. a sewage activity just heavy hydrolytic tank, it is characterized in that, arrange stirrer, arrange solid-liquid separator in the exit of shore pipe in radial-flow or vertical-flow preliminary sedimentation tank, the fermentation liquor backflow pipe Opposite direction connection of described solid-liquid separator is to described preliminary sedimentation tank.
2. activity according to claim 1 just heavy hydrolytic tank, it is characterized in that, the paddle place plane of described stirrer is perpendicular, and described perpendicular and the diametric angle of described preliminary sedimentation tank are 30 ° ~ 50 °.
3. activity according to claim 1 and 2 just heavy hydrolytic tank, is characterized in that, apart from sludgd deposition place 0.5 ~ 1.5m bottom the paddle of described stirrer.
4. activity according to claim 3 just heavy hydrolytic tank, it is characterized in that, arrange guide shell at the sewage inlet place of described preliminary sedimentation tank, described stirrer is 4m ~ 6m apart from the horizontal throw that described guide shell exports.
5. the activity according to claim 1 or 4 is heavy hydrolytic tank just, it is characterized in that, described stirrer is by power density 2 ~ 3w/m
3evenly install in pond.
6. activity according to claim 1 just heavy hydrolytic tank, is characterized in that, be connected with reflux pump between the fermentation liquor backflow pipe of described solid-liquid separator and described preliminary sedimentation tank.
7. activity according to claim 4 just heavy hydrolytic tank, it is characterized in that, described preliminary sedimentation tank is vertical-flow preliminary sedimentation tank, the taper bucket of upper opening is provided with at the bottom of the pond of described preliminary sedimentation tank, the gradient of described bucket is 50 ~ 60 °, slope aspect along described bucket arranges shore pipe, and the outlet of described shore pipe connects described solid-liquid separator; The top of described preliminary sedimentation tank is provided with water leg along the horizontal direction of described preliminary sedimentation tank pool wall, water outlet is provided with in described water leg, the fermentation liquor backflow pipe Opposite direction connection of described solid-liquid separator is to described preliminary sedimentation tank, and its level attitude is between described bucket upper opening and described water leg; Reflecting curtain is provided with below the outlet of described guide shell, the paddle place plane of described stirrer is perpendicular, described perpendicular and the diametric angle of described preliminary sedimentation tank are 30 ° ~ 50 °, apart from described sludgd deposition place 0.5 ~ 1.5m bottom described paddle; Described stirrer is 4m ~ 6m apart from the horizontal throw that described guide shell exports; Described stirrer is by power density 2 ~ 3w/m
3evenly install in pond.
8. activity according to claim 4 just heavy hydrolytic tank, it is characterized in that, described preliminary sedimentation tank is radial-flow preliminary sedimentation tank, the Chi Di center of described preliminary sedimentation tank is provided with water inlet, described water inlet connects described guide shell, the bottom of described guide shell is provided with 4 ~ 8 water outlets, suction dredger is provided with at the bottom of described pond, the outlet of described suction dredger connects described solid-liquid separator, the top of described preliminary sedimentation tank is provided with water leg along the horizontal direction of described preliminary sedimentation tank pool wall, water outlet is provided with in described water leg, preliminary sedimentation tank described in the fermentation liquor backflow pipe Opposite direction connection of described solid-liquid separator, its level attitude is positioned under described water leg, the paddle place plane of described stirrer is perpendicular, and described perpendicular and the diametric angle of described preliminary sedimentation tank are 30 ° ~ 50 °, apart from described sludgd deposition place 0.5 ~ 1.5m bottom described paddle, described stirrer is 4m ~ 6m apart from the horizontal throw that described guide shell exports, described stirrer is by power density 2 ~ 3w/m
3evenly install in pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520456984.4U CN205151893U (en) | 2015-06-29 | 2015-06-29 | Sewage activity is heavy pond of hydrolysising just |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520456984.4U CN205151893U (en) | 2015-06-29 | 2015-06-29 | Sewage activity is heavy pond of hydrolysising just |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205151893U true CN205151893U (en) | 2016-04-13 |
Family
ID=55687608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520456984.4U Withdrawn - After Issue CN205151893U (en) | 2015-06-29 | 2015-06-29 | Sewage activity is heavy pond of hydrolysising just |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205151893U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104944577A (en) * | 2015-06-29 | 2015-09-30 | 浦华环保有限公司 | Sewage activity primary precipitation hydrolysis tank and application thereof |
-
2015
- 2015-06-29 CN CN201520456984.4U patent/CN205151893U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104944577A (en) * | 2015-06-29 | 2015-09-30 | 浦华环保有限公司 | Sewage activity primary precipitation hydrolysis tank and application thereof |
| CN104944577B (en) * | 2015-06-29 | 2017-08-25 | 浦华环保股份有限公司 | A kind of just heavy hydrolytic tank and its application of sewage activity |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103408194B (en) | Small sewage treatment hydrolysis and gas-stripping and precipitation technique method | |
| CN201313860Y (en) | Integrated aeration-sedimentation aerobic reactor | |
| CN103395950A (en) | V-shape air-stripping technology for removing nitrogen and phosphorus of large and medium-sized sewage processing | |
| CN104118971A (en) | Method for strengthening nitrogen and phosphorus removal by using hydrolysis and fermentation of mixed sludge of sewage plant | |
| CN107459213A (en) | A kind of drum type brake integrated sewage treating apparatus | |
| CN108529834A (en) | A kind of method and its device of Fenton-SMAD-BBR processing high concentrated organic wastewater | |
| CN103395948B (en) | Z-shaped gas stripping reflux two-stage precipitation integrated sewage treatment tank | |
| CN205294959U (en) | Uasb reactor | |
| CN106865905A (en) | It is a kind of to meet the sewage disposal system for being directly discharged into the class water body standard of II class of earth's surface III | |
| CN104743743A (en) | Upward flowing type deposition-hydrolyzing and two-stage AO biochemical treatment system and application thereof | |
| CN206033377U (en) | Low -energy -consumption sewage treatment device | |
| CN204569652U (en) | The hydrolysis of upflowing precipitation and two-stage AO biochemical treatment system | |
| CN205151893U (en) | Sewage activity is heavy pond of hydrolysising just | |
| CN103482764B (en) | A kind of hydrolysis acidification pool based on granule sludge enhanced flocculation technique | |
| CN104944577A (en) | Sewage activity primary precipitation hydrolysis tank and application thereof | |
| CN206033525U (en) | A denitrogenation and sludge concentration device for sewage factory | |
| CN101898853B (en) | Sewage primary sedimentation treatment method and system for removing intensified suspended solid inorganic component | |
| CN204737849U (en) | Novel cities and towns sewage treatment device | |
| CN206502670U (en) | Two-stage backflow Biological membrane device for dispersed wastewater processing | |
| CN102863063B (en) | Waste water processing device for high-density flocculating clarification | |
| CN209759234U (en) | Integrated sewage treatment device | |
| CN206069650U (en) | A kind of combination type MBR membrane bioreactors | |
| CN206014595U (en) | A kind of biological device for Treating Municipal Sewage | |
| CN200992504Y (en) | Continuous waste water treating device | |
| CN203999267U (en) | A kind of regeneration effluent is processed integrated apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100084 Haidian District Tsinghua Science and technology building, C27, Beijing Patentee after: THUNIP HOLDINGS CO., LTD. Patentee after: Puhua Holding Co., Ltd. Address before: 100084 Haidian District Tsinghua Science and technology building, C27, Beijing Patentee before: THUNIP Holdings Co., Ltd. Patentee before: Ziguang Environmental Protection Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160413 Effective date of abandoning: 20170825 |
|
| AV01 | Patent right actively abandoned |