CN104326557A - Multi-point jet stirring hybrid anaerobic digester system - Google Patents
Multi-point jet stirring hybrid anaerobic digester system Download PDFInfo
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- CN104326557A CN104326557A CN201410566680.3A CN201410566680A CN104326557A CN 104326557 A CN104326557 A CN 104326557A CN 201410566680 A CN201410566680 A CN 201410566680A CN 104326557 A CN104326557 A CN 104326557A
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- anaerobic digester
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/286—Anaerobic digestion processes including two or more steps
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a multi-point jet stirring hybrid anaerobic digester system, comprising at least two stages of anaerobic digesters, a water feeding device, a water distribution device and a sludge discharge pipe, wherein the water feeding device comprises a circulating water inlet pipe and a circulating pump, the top of the circulating water inlet pipe is at least connected with two branch pipes, the first branch pipe outside the top anaerobic digester is communicated with sewage, the first branch pipe outside next stage of anaerobic digester is communicated with the supernate layer of the last stage of anaerobic digester, and the second branch pipes are communicated with the supernate layers of the corresponding anaerobic digesters; and the water distribution device comprises a water distribution main pipe, a water distribution branch pipe and an anti-blocking nozzle. By adopting the system, sludge can be prevented from entering the nozzle to cause blocking, uniform water distribution is ensured, the treatment effect is improved, normal operation of the treatment system is ensured, digestive liquid can sufficiently contact and be mixed with sludge, and the treatment efficiency of the anaerobic digesters is greatly improved.
Description
Technical field
The invention belongs to Anaerobic wastewater treatment technical field, be specifically related to the hybrid anaerobic digestion cell system of a kind of multiple spot jet mixing.
Background technology
Anaerobic biological wastewater treatment is an important technology in environmental engineering and energy project, is one of strong treatment process of organic waste water.In the past, it is used for the process of the mud of municipal sewage plant, organic waste materials and part high concentrated organic wastewater, mainly in structures pattern adopts common digester.
Common digester is also known as tradition or conventional digestion pond, and the history of existing over one hundred year, can directly process the feed liquid that suspended solids content is higher or particle is larger.Waste water regularly or continuously enters in pond, and the mud through digesting and waste water are discharged by the bottom of digester and top respectively, and the biogas produced is discharged from top.Fully contacting with anaerobic sludge to make charging, making produced biogas bubble overflow in time and be provided with whipping appts, conventional alr mode has three kinds: mechanical stirring in (1) pond; (2) biogas stirs, and namely extracted out from Chi Ding by biogas with compressor, then be filled with at the bottom of pond, recycled biogas stirs; (3) circulation Digestive system stirs, and be namely provided with ejector in pond, the circulation Digestive system sent by pool outer water pump pressure sprays through ejector, outside trunnion, cause vacuum, and the Digestive system in inspiration part pond, forms stronger stirring.
There is following defect in above three kinds of alr modes distribution: (1) mechanical stirring exists the shortcoming of Digestive system and anaerobic sludge undercompounding; (2) biogas stir be the method that national environmental protection portion clear stipulaties should adopt, but it will adopt explosion-proof compressor, with avoid exist potential risk of explosion, and need with diving mixer with the use of, in energy-conservation, also do not possess advantage; (3) it is the stirring adopting single trunnion pressurized jet to be formed that common circulation Digestive system stirs, and the limited volume of this stirring mixing method mixing, the sewage quantity of this method process is extremely limited.
For overcoming the defect of above three kinds of modes, current employing multiple spot jet mixing, be laid in the sludge blanket in pond, by evenly offering fluid orifice on multiple water distributor, Digestive system is made to enter sludge blanket through fluid orifice, Digestive system and waste water and the repeated multiple times Homogeneous phase mixing of mud, have safe, energy-conservation, convenient, controlled, that sewage load is changeable advantage.But the multiple spot jet mixing adopted at present, easily blocks fluid orifice after mixing, cause water distribution uneven, affect treatment effect, treatment system even can be caused to lose efficacy after Digestive system injection with the mud in settling region.
Summary of the invention
The object of the present invention is to provide the hybrid anaerobic digestion cell system of a kind of multiple spot jet mixing that can effectively solve the problems of the technologies described above.
The technical solution adopted for the present invention to solve the technical problems is:
There is provided a kind of multiple spot jet mixing hybrid anaerobic digestion cell system, this system comprises: at least two-stage anaerobic digestion pond, the water feed apparatus be arranged on outside every grade of anaerobic digester, the shore pipe that is arranged on the water-distributing device in the sludge blanket of every grade of anaerobic digester and is arranged on bottom every grade of anaerobic digester; Wherein,
Described water feed apparatus comprises circulation water inlet pipe and recycle pump, described recycle pump is arranged on described circulation water inlet pipe, the top of described circulation water inlet pipe is at least connected with two arms, wherein, the first arm be positioned at outside most upper level anaerobic digester is communicated with sewage, the first arm be positioned at outside next stage anaerobic digester is communicated with the supernatant layer of upper level anaerobic digester, the supernatant layer of the anaerobic digester that the second arm is corresponding with it is communicated with, and the bottom of described circulation water inlet pipe is connected with water-distributing device;
Described water-distributing device comprises water distribution supervisor, water distribution branch pipe and Anti-clogging spray nozzle, described water distribution supervisor is communicated with the bottom of circulation water inlet pipe, multiple described water distribution branch pipe is arranged on water distribution supervisor in the horizontal direction, multiple described Anti-clogging spray nozzles are arranged on the both sides of water distribution branch pipe, described Anti-clogging spray nozzle comprises housing, and the baffle plate be arranged in described housing and telescoping mechanism, described housing comprises the first paragraph housing be connected with water distribution branch pipe, and the second segment housing to be communicated with the sludge blanket of anaerobic digester, neck is provided with between described first paragraph housing and second segment housing, the internal diameter of described neck is not more than the external diameter of baffle plate, described baffle plate is arranged in second segment housing, described baffle plate is connected with one end of telescoping mechanism, the other end of described telescoping mechanism is fixedly installed on the inwall of first paragraph housing.
By technique scheme, the top of described circulation water inlet pipe is also connected with the 3rd arm, and described 3rd arm is chemical feed pipe.
By technique scheme, described baffle plate is conical baffled, and described conical baffled top is connected with telescoping mechanism.
By technique scheme, described telescoping mechanism comprises guide rod, guide pin bushing and support, one end of described guide rod is connected with baffle plate, the external diameter of the described guide rod the other end is greater than the internal diameter of guide pin bushing, described guide rod and guide pin bushing are slidably connected, described guide pin bushing is fixedly connected with one end of support, and the other end of described support is fixedly connected with the inwall of first paragraph housing.
By technique scheme, described telescoping mechanism comprises spring and spring suppport, and one end of described spring is connected with baffle plate, and the other end of described spring is connected with spring suppport, and described spring suppport is fixedly mounted on the inwall of first paragraph housing.
The beneficial effect that the present invention produces is: this system adopts at least two-stage anaerobic digestion pond, the supernatant layer of next stage anaerobic digester is connected with the circulation water inlet pipe of upper level anaerobic digester, repeatedly stepwise disposal can be carried out to the organic sewage of high density, improve treatment effect, during work, the supernatant liquor of sewage or upper level anaerobic digester enters circulation water inlet pipe by the first arm, the supernatant liquor of this grade of anaerobic digester enters circulation water inlet pipe by the second arm, all liquid mixes in circulation water inlet pipe, mixed Digestive system is also injected in water distribution supervisor by recycle pump pressurization, the condition that gravity flow needs drop can be reduced like this, for the series multistage process of many ponds is provided convenience, the Digestive system entering into water distribution supervisor is dispersed to multiple water distribution branch pipe, the baffle plate of all Anti-clogging spray nozzles departs from the neck of housing under the pressure of Digestive system and the effect of telescoping mechanism, thus first paragraph housing is communicated with second segment housing, Digestive system enters in sludge blanket and evenly fully mixes with mud, if mud returns in housing, the neck of baffle plate meeting seal casinghousing under the pressure of mud and the effect of telescoping mechanism, disconnection first paragraph housing is communicated with second segment housing, make mud can not enter nozzle to result in blockage, guarantee water distribution is even, improve treatment effect, ensure that treatment system is normally run, this system by recycle pump by Digestive system iterative cycles in lower floor's mud, Digestive system is made to contact mixing fully with mud, substantially increase the processing efficiency of anaerobic digester, mud after process is discharged through shore pipe.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the front view of the preferred embodiment of the present invention;
Fig. 2 is the vertical view of the preferred embodiment of the present invention;
Fig. 3 is the structural representation of Anti-clogging spray nozzle embodiment when opening;
Structural representation when Fig. 4 is an Anti-clogging spray nozzle embodiment closedown;
Fig. 5 is the structural representation of another embodiment of Anti-clogging spray nozzle.
Wherein: 1-circulation water inlet pipe, 2-recycle pump, 301-first arm, 302-second arm, 303-the 3rd arm, 401-one-level digester, 402-secondary digester, 403-tri-grades of digesters, 404-level Four digester, 5-shore pipe, 6-water distribution supervisor, 7-water distribution branch pipe, 8-housing, 801-first paragraph housing, 802-second segment housing, 803-neck, 901-guide rod, 902-guide pin bushing, 903-support, 904-spring, 905-spring suppport, 10-baffle plate, 11-Anti-clogging spray nozzle.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
In the preferred embodiment, as shown in Fig. 1 ~ Fig. 3, the hybrid anaerobic digestion cell system of a kind of multiple spot jet mixing, this system comprises: at least two-stage anaerobic digestion pond, the water feed apparatus be arranged on outside every grade of anaerobic digester, be arranged on the water-distributing device in the sludge blanket of every grade of anaerobic digester and be arranged on the shore pipe 5 bottom every grade of anaerobic digester; Wherein,
Water feed apparatus comprises circulation water inlet pipe 1 and recycle pump 2, recycle pump 2 is arranged on circulation water inlet pipe 1, the top of circulation water inlet pipe 1 is at least connected with two arms, wherein, be positioned at most upper level anaerobic digester (i.e. one-level anaerobic digester 401) the first arm 301 to be outward communicated with sewage, the first arm 301 be positioned at outside next stage anaerobic digester is communicated with the supernatant layer of upper level anaerobic digester, the supernatant layer of the anaerobic digester that the second arm 302 is corresponding with it is communicated with, and the bottom of circulation water inlet pipe 1 is connected with water-distributing device;
Water-distributing device comprises water distribution supervisor 6, water distribution branch pipe 7 and Anti-clogging spray nozzle 11, water distribution supervisor 6 is communicated with the bottom of circulation water inlet pipe 1, concrete, the middle part of water distribution supervisor 6 is connected with circulation water inlet pipe 1, to make water distribution more even, multiple water distribution branch pipe 7 is arranged on water distribution supervisor 6 in the horizontal direction, preferably water distribution branch pipe is covered with the plane of whole sludge blanket, multiple Anti-clogging spray nozzles 11 are arranged on the both sides of water distribution branch pipe 6, Anti-clogging spray nozzle 11 comprises housing 8, and the baffle plate 10 be arranged in housing 8 and telescoping mechanism, housing 8 comprises the first paragraph housing 801 be connected with water distribution branch pipe 7, and the second segment housing 802 to be communicated with the sludge blanket of anaerobic digester, neck 803 is provided with between first paragraph housing 801 and second segment housing 802, the internal diameter of neck 803 is not more than the external diameter of baffle plate 10, preferably the internal diameter of neck is less than the external diameter of baffle plate 10, to ensure sealing effectiveness, baffle plate 10 is arranged in second segment housing 802, baffle plate 10 is connected with one end of telescoping mechanism, the other end of telescoping mechanism is fixedly installed on the inwall of first paragraph housing 801, baffle plate 10 is communicated with or disconnects first paragraph housing 801 and second segment housing 802 under the telescopic action of telescoping mechanism.
In a preferred embodiment of the invention, as shown in Figure 1, the top of circulation water inlet pipe 1 adopts two three-port structure, be specially, the top of circulation water inlet pipe 1 is also connected with the 3rd arm 303,3rd arm 303 is chemical feed pipe, anaerobic digester independent separately can be made like this to regulate dosing composition targetedly according to the pH value in its water inlet and pond and nutritive ingredient, the nutrition making to add, medicament are accomplished evenly, facilitate, put in place, controlled, be conducive to the cultivation that respective anaerobic digester is suitable for the anaerobic species of the organic waste water of different concns.
Preferably, be provided with filtration unit being positioned on the circulation water inlet pipe before recycle pump, to filter out the impurity in sewage, improve the work-ing life of recycle pump.
In a preferred embodiment of the invention, as shown in Fig. 3, Fig. 4, Fig. 5, baffle plate 10 is conical baffled, conical baffled top is connected with telescoping mechanism, adopt the conical baffled effect can playing water conservancy diversion Digestive system, Digestive system in water distribution branch pipe is flowed in sludge blanket more smoothly, improves treatment effect.
In a preferred embodiment of the invention, as shown in Figure 3, Figure 4, telescoping mechanism comprises guide rod 901, guide pin bushing 902 and support 903, one end of guide rod 901 is connected with baffle plate 10, the external diameter of guide rod 902 the other end is greater than the internal diameter of guide pin bushing 902, guide rod 901 and guide pin bushing 902 are slidably connected, and 902 guide pin bushings are fixedly connected with one end of support 903, and the other end of support 903 is fixedly connected with the inwall of first paragraph housing 801.
In a preferred embodiment of the invention, as shown in Figure 5, telescoping mechanism 9 comprises spring 904 and spring suppport 905, and one end of spring 904 is connected with baffle plate 10, the other end of spring 904 is connected with spring suppport 905, and spring suppport 905 is fixedly mounted on the inwall of first paragraph housing 801.
As Fig. 1, shown in Fig. 2, this system adopts at least two-stage anaerobic digestion pond, difference according to organic waste water concentration can select different progression, anaerobic digester can according to the different designs size of wastewater treatment capacity, the present invention is for level Four anaerobic digester, be respectively one-level digester 401, secondary digester 402, three grades of digesters 403 and level Four digester 404, the supernatant layer of next stage anaerobic digester is connected with the circulation water inlet pipe of upper level anaerobic digester, the organic sewage of high density is introduced into one-level digester 401 and processes, then through secondary digester 402, three grades of digesters 403 and level Four digester 404 stepwise disposal, by repeatedly further process step by step, treatment effect can be improved, for the final treatment effect of the organic waste water of high density provides reliable guarantee, during work, the supernatant liquor of sewage or higher level's digester is through the first arm, supernatant layer is by the second arm, medicine enters circulation water inlet pipe together by the 3rd arm, be mixed into Digestive system, be injected in water distribution supervisor through recycle pump pressurization again, the condition that gravity flow needs drop can be reduced like this, for the series multistage process of many ponds is provided convenience, the Digestive system entering into water distribution supervisor is dispersed to multiple water distribution branch pipe, the baffle plate of all Anti-clogging spray nozzles departs from the neck of housing under the pressure of Digestive system and the effect of telescoping mechanism, thus first paragraph housing is communicated with second segment housing, Digestive system enters in sludge blanket and evenly fully mixes with mud, if mud returns in housing, the neck of baffle plate meeting seal casinghousing under the pressure of mud and the effect of telescoping mechanism, disconnection first paragraph housing is communicated with second segment housing, make mud can not enter nozzle to result in blockage, guarantee water distribution is even, improve treatment effect, ensure that treatment system is normally run, this system by recycle pump by Digestive system iterative cycles in lower floor's mud, Digestive system is made to contact mixing fully with mud, substantially increase the processing efficiency of anaerobic digester, mud after process is discharged through shore pipe.
The present invention also can use in single pond, organic waste water is by the water inlet of one-level anaerobic digester water-in, character according to waste water adds suitable medicament to regulate the ratio of pH value and nutritive ingredient by the 3rd arm, medicament and waste water, supernatant liquor Homogeneous phase mixing contacting fully with the mud bottom anaerobic digester is made by recycle pump, thus the object reached organic substance decomposing, the Digestive system in single pond by recycle pump circulation stirring can make organic waste water repeated multiple times contact the clearance of the pollutent improving single pond fully with the mud bottom anaerobic pond.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (5)
1. the hybrid anaerobic digestion cell system of multiple spot jet mixing, it is characterized in that, this system comprises: at least two-stage anaerobic digestion pond, the water feed apparatus be arranged on outside every grade of anaerobic digester, the shore pipe that is arranged on the water-distributing device in the sludge blanket of every grade of anaerobic digester and is arranged on bottom every grade of anaerobic digester; Wherein,
Described water feed apparatus comprises circulation water inlet pipe and recycle pump, described recycle pump is arranged on described circulation water inlet pipe, the top of described circulation water inlet pipe is at least connected with two arms, wherein, the first arm be positioned at outside most upper level anaerobic digester is communicated with sewage, the first arm be positioned at outside next stage anaerobic digester is communicated with the supernatant layer of upper level anaerobic digester, the supernatant layer of the anaerobic digester that the second arm is corresponding with it is communicated with, and the bottom of described circulation water inlet pipe is connected with water-distributing device;
Described water-distributing device comprises water distribution supervisor, water distribution branch pipe and Anti-clogging spray nozzle, described water distribution supervisor is communicated with the bottom of circulation water inlet pipe, multiple described water distribution branch pipe is arranged on water distribution supervisor in the horizontal direction, multiple described Anti-clogging spray nozzles are arranged on the both sides of water distribution branch pipe, described Anti-clogging spray nozzle comprises housing, and the baffle plate be arranged in described housing and telescoping mechanism, described housing comprises the first paragraph housing be connected with water distribution branch pipe, and the second segment housing to be communicated with the sludge blanket of anaerobic digester, neck is provided with between described first paragraph housing and second segment housing, the internal diameter of described neck is not more than the external diameter of baffle plate, described baffle plate is arranged in second segment housing, described baffle plate is connected with one end of telescoping mechanism, the other end of described telescoping mechanism is fixedly installed on the inwall of first paragraph housing.
2. system according to claim 1, is characterized in that, the top of described circulation water inlet pipe is also connected with the 3rd arm, and described 3rd arm is chemical feed pipe.
3. system according to claim 1, is characterized in that, described baffle plate is conical baffled, and described conical baffled top is connected with telescoping mechanism.
4. system according to claim 1, it is characterized in that, described telescoping mechanism comprises guide rod, guide pin bushing and support, one end of described guide rod is connected with baffle plate, the external diameter of the described guide rod the other end is greater than the internal diameter of guide pin bushing, described guide rod and guide pin bushing are slidably connected, and described guide pin bushing is fixedly connected with one end of support, and the other end of described support is fixedly connected with the inwall of first paragraph housing.
5. system according to claim 1, it is characterized in that, described telescoping mechanism comprises spring and spring suppport, and one end of described spring is connected with baffle plate, the other end of described spring is connected with spring suppport, and described spring suppport is fixedly mounted on the inwall of first paragraph housing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410566680.3A CN104326557B (en) | 2014-10-22 | 2014-10-22 | The hybrid anaerobic digestion cell system of multiple spot jet mixing |
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| CN201410566680.3A CN104326557B (en) | 2014-10-22 | 2014-10-22 | The hybrid anaerobic digestion cell system of multiple spot jet mixing |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000117284A (en) * | 1998-10-12 | 2000-04-25 | Mitsubishi Kakoki Kaisha Ltd | Upflow type anaerobic treatment equipment and treatment using the same |
| CN201132800Y (en) * | 2007-11-21 | 2008-10-15 | 山东美泉环保科技有限公司 | Highly effective mixing upwash reactor for anaerobic solid |
| CN102897911A (en) * | 2012-11-05 | 2013-01-30 | 广西金源生物化工实业有限公司 | Anaerobic tank jet-flow water distributor and water distribution blending system |
| CN204138417U (en) * | 2014-10-22 | 2015-02-04 | 湖北威能环保工程有限公司 | The hybrid anaerobic digestion cell system of multiple spot jet mixing |
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2014
- 2014-10-22 CN CN201410566680.3A patent/CN104326557B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000117284A (en) * | 1998-10-12 | 2000-04-25 | Mitsubishi Kakoki Kaisha Ltd | Upflow type anaerobic treatment equipment and treatment using the same |
| CN201132800Y (en) * | 2007-11-21 | 2008-10-15 | 山东美泉环保科技有限公司 | Highly effective mixing upwash reactor for anaerobic solid |
| CN102897911A (en) * | 2012-11-05 | 2013-01-30 | 广西金源生物化工实业有限公司 | Anaerobic tank jet-flow water distributor and water distribution blending system |
| CN204138417U (en) * | 2014-10-22 | 2015-02-04 | 湖北威能环保工程有限公司 | The hybrid anaerobic digestion cell system of multiple spot jet mixing |
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