CN105036319A - Rotary drum anaerobic ammonia oxidation reactor - Google Patents
Rotary drum anaerobic ammonia oxidation reactor Download PDFInfo
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- CN105036319A CN105036319A CN201510282785.0A CN201510282785A CN105036319A CN 105036319 A CN105036319 A CN 105036319A CN 201510282785 A CN201510282785 A CN 201510282785A CN 105036319 A CN105036319 A CN 105036319A
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- ammonia oxidation
- anaerobic ammonia
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Abstract
The invention relates to a rotary drum anaerobic ammonia oxidation reactor, which comprises a reactor body, a center rotating shaft, a gas collecting shelf with a gas discharge port, and liquid sealing grooves, wherein the end covers on both sides of the reactor body are respectively provided with a water inlet and a water outlet, the side wall on the top portion of the reactor body is provided with a plurality of the liquid sealing grooves, the bottom portions of the liquid sealing grooves are sealedly connected with the outer wall of the reactor body, the gas collecting shelf is positioned inside the liquid sealing groove, the gas discharge port is positioned at the center on the top portion of the gas collecting shelf, the reactor body and the center rotating shaft form a shaft connection, the center rotating shaft is fixedly connected with the output shaft of a motor, the center rotating shaft positioned in the inner chamber of the reactor body is provided with stirring paddles, seams are arranged between the outer edges of the blades of the stirring paddles and the inner wall of the reactor body, the inner chamber of the reactor body is divided into a plurality of independent grid chambers through the blades, and each grid chamber is filled with a suspension filler. According to the present invention, the reactor has beneficial effects of high volume load, strong anti-shock-load capability, good mass transfer effect, rapid biofilm update, high microbial activity, capital construction cost reducing, filler clogging avoidance, and electric energy saving.
Description
Technical field
The present invention relates to a kind of drum-type anaerobic ammonia oxidation reactor.
Background technology
The excessive emissions of ammonia nitrogen is one of main reason of body eutrophication.There is more problem in traditional biological denitrification process: denitrification needs to provide suitable electron donor, is generally organism, adds processing cost; Nitration reaction and the demand of anti-nitration reaction to envrionment conditions inconsistent, cause nitrification and denitrification to be difficult to unified and technical process complexity over time and space; Nitrifying bacteria community rate of propagation is slow, is difficult to maintain higher biological concentration, particularly low temperature environment in the winter time, causes system total hrt longer, adds initial cost and working cost.
Anammox is the New Biodenitrification Process of novel economizer, and this technique has the advantages such as oxygen requirement is few, sludge yield is low, non-secondary pollution, has become " upgrade version " of traditional biological denitrification process.
Existing denitrification of anaerobic ammonium oxidation reactor is of a great variety, if any upflow anaerobic sludge blanket process, baffled reactor, expanded granular sludge bed, sequencing batch reactor etc.Such as, but there are some drawbacks, upflow anaerobic sludge blanket process start time is long, upflow velocity is little, mixed effect is poor; The load that first lattice room of baffled reactor will be born is much larger than mean load, and localised load overload causes the indoor substrate inhibition problem of the first lattice serious, and in inhibited reaction device, microbial growth is with active; Secondly, reactor anterior lattice room supernutrition is concentrated, and lattice room, rear portion nutritive substance is comparatively deficient, corresponding biotic population quantity not sufficient and activity is not high.These drawbacks cause the less stable of the on the low side and technique of the efficiency of system.
Summary of the invention
In order to overcome, pre-existing reactors mass transfer velocity is slow, mixed performance is poor, capacity of resisting impact load is weak, mud easily runs off and reactor such as easily to block at the shortcoming, the invention provides a kind of energy realization response device inside and form fluidized, improve the mass transfer in reactor and mixed performance, and the drum-type anaerobic ammonia oxidation reactor of anti-load impact ability.
A kind of drum-type anaerobic ammonia oxidation reactor of the present invention, it is characterized in that: comprise reactor body, central rotating shaft, the gas skirt of band venting port, liquid seal trough, the two side ends of described reactor body covers and is respectively equipped with water-in, water outlet, the top sidewall of described reactor body is provided with multiple liquid seal trough, and bottom and the reactor body outer wall of liquid seal trough are tightly connected; Described gas skirt is positioned at liquid seal trough; Described venting port is positioned at the center at gas skirt top; Described reactor body and horizontally disposed central rotating shaft are coupling, described central rotating shaft and the output shaft fixed connection of motor; The central rotating shaft being positioned at reactor body inner chamber is equipped with stirring rake; Blade outer rim and the reactor body inwall of described stirring rake leave slit; Described reactor body inner chamber is separated into multiple independently lattice room through described blade, and floating stuffing is all filled in each lattice room.
Described reactor body is the cylinders of two ends with end cap, the length of cylinder: internal diameter ratio is 2.5 ~ 4:1.
The blade of described stirring rake is rectangle, and described blade centrally rotating shaft radial distribution.
Described stirring rake by three pieces centrally the radially-arranged rectangular paddle of rotating shaft form, described reactor body inner chamber is separated into three independently lattice rooms by described blade, the length of described blade: wide is 2.5 ~ 4:1, all blades are centered by central rotating shaft, the blade face angle of adjacent blades is 120 °, and the slit width between blade outer rim and reactor body inwall is less than 1.1cm.
The volume ratio of three absolute case rooms is 1:1:1.
The top sidewall of described reactor body is provided with three liquid seal troughs, and the corresponding gas skirt of each liquid seal trough, each gas skirt has a venting port.
Distance between adjacent two liquid seal troughs: two ends liquid seal trough and reactor body are 1.5 ~ 1:1 with the distance of side end cap, and liquid seal trough height is 0.125 ~ 0.2:1 with the ratio of the internal diameter of reactor body.
Described floating stuffing shape is hollow cylindrical, and floating stuffing material is polypropylene or polyethylene, or the mixed fillers of polypropylene segment and part polyethylene, diameter 2.5 ~ 2.7cm, height 1.1 ~ 1.3cm, density 0.90 ~ 0.98kg/m
3, the packing volume of floating stuffing accounts for 30% ~ 40% of reactor body 1 volume.
Described water-in is arranged on the bottom of one of them end cap of reactor body, and water outlet is arranged on the top of another end cap of reactor body.
Working process: reactor body of the present invention, central rotating shaft and blade can adopt stainless material to build, central rotating shaft outside connects motor, blades turning is made by driving central rotating shaft, the rotating speed of central rotating shaft can according to the rotating speed of the concentration adjustment central rotating shaft of ammonia nitrogen and nitrite nitrogen in water inlet, waste water enters reactor body by water-in, reactor body is divided into three absolute case rooms by three rectangle stirring rakes, the indoor filling floating stuffing of each lattice, ammonia nitrogen in waste water and nitrite nitrogen react under floating stuffing surface with the effect of the anaerobic ammonia oxidizing bacteria of inner attachment, realize denitrogenation, the nitrogen produced is collected by the gas skirt on reactor body top, and to be overflowed reactor body by venting port, gas skirt is placed in the liquid seal trough on reactor body top, add appropriate amount of fluid in liquid seal trough and carry out fluid-tight, to ensure that reactor body is in anaerobic state, water outlet after process is flowed out from the water outlet reactor body end cap.
The invention has the beneficial effects as follows: 1) volumetric loading is high, capacity of resisting impact load is strong.The rotation of rectangle stirring rake drives the rotation of filler in bucket, and make carrier in fluidized in reactor, specific surface area is much larger than other biological membrane reactor, and the biomass of unit volume is very high, ensure that the high loading of reactor; Sewage enters in reactor, soon mixed and dilution, and therefore, drum-type anaerobic ammonia oxidation reactor impact resistance is also stronger; 2) mass transfer effect is good.Filler along with rectangular paddle rotate time, increase the contact probability of microorganism and substrate, accelerate the Surface Renewal speed of solid-liquid interface; 3) microbial film updating decision, microorganism active is high.Drive filler to rotate when rectangular paddle is rotated, sewage is purified, and the microbial film simultaneously on filler constantly grows, and thickens, and aging microbial film comes off along with the shearing force produced when rotating, and microbial film is upgraded, and microorganism active is stronger; 4) can save second pond, capital construction cost declines; 5) filler can be avoided to block; 6) arrange three rectangle stirring rakes, when 1 blade does not possess power potential energy, other 2 are in potential energy states, and 2 blades can easily drive this blade, thus saves energy.
Accompanying drawing explanation
Fig. 1 is structure iron of the present invention.
Fig. 2 is right view of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing
With reference to accompanying drawing:
Embodiment 1 a kind of drum-type anaerobic ammonia oxidation reactor of the present invention, comprise gas skirt 7, the liquid seal trough 6 of reactor body 1, central rotating shaft 5, band venting port 8, the two side ends of described reactor body 1 covers and is respectively equipped with water-in 2, water outlet 3, the top sidewall of described reactor body 1 is provided with multiple liquid seal trough 6, and bottom and reactor body 1 outer wall of liquid seal trough 6 are tightly connected; Described gas skirt 7 is positioned at liquid seal trough; Described venting port 8 is positioned at the center at gas skirt top; Described reactor body 1 is coupling with horizontally disposed central rotating shaft 5, described central rotating shaft 5 and the output shaft fixed connection of motor; The central rotating shaft 5 being positioned at reactor body 1 inner chamber is equipped with stirring rake 4; Blade outer rim and reactor body 1 inwall of described stirring rake 4 leave slit; Described reactor body 1 inner chamber is separated into multiple independently lattice room through described blade, and floating stuffing is all filled in each lattice room.
Described reactor body 1 is the cylinders of two ends with end cap, the length of cylinder: internal diameter ratio is 2.5 ~ 4:1.
The blade of described stirring rake 4 is rectangle, and described blade centrally rotating shaft 5 radial distribution.
Described stirring rake 4 by three pieces centrally the radially-arranged rectangular paddle of rotating shaft form, described reactor body 1 inner chamber is separated into three independently lattice rooms by described blade, the length of described blade: wide is 2.5 ~ 4:1, all blades are centered by central rotating shaft, the blade face angle of adjacent blades is 120 °, and the slit width between blade outer rim and reactor body 1 inwall is less than 1.1cm.
The volume ratio of three absolute case rooms is 1:1:1.
The top sidewall of described reactor body 1 is provided with three liquid seal troughs 6, and the corresponding gas skirt 7 of each liquid seal trough 6, each gas skirt 7 has a venting port 8.
Distance between adjacent two liquid seal troughs 6: two ends liquid seal trough 6 and reactor body 1 are 1.5 ~ 1:1 with the distance of side end cap, and liquid seal trough 6 height is 0.125 ~ 0.2:1 with the ratio of the internal diameter of reactor body 1.
Described floating stuffing shape is hollow cylindrical, and floating stuffing material is polypropylene or polyethylene, or the mixed fillers of polypropylene segment and part polyethylene, diameter 2.5 ~ 2.7cm, height 1.1 ~ 1.3cm, density 0.90 ~ 0.98kg/m
3, the packing volume of floating stuffing accounts for 30% ~ 40% of reactor body 1 volume.
Described water-in 2 is arranged on the bottom of one of them end cap of reactor body 1, and water outlet 3 is arranged on the top of another end cap of reactor body 1.
Working process: reactor body 1 of the present invention, central rotating shaft 5 and blade can adopt stainless material to build, central rotating shaft 5 outside connects motor, blades turning is made by driving central rotating shaft, the rotating speed of central rotating shaft 5 can be 2-8r/min according to the rotating speed of the concentration adjustment central rotating shaft 5 of ammonia nitrogen and nitrite nitrogen in water inlet, , waste water enters reactor body 1 by water-in 2, reactor body 1 is divided into three absolute case rooms by three blades, the indoor filling floating stuffing of each lattice, ammonia nitrogen in waste water and nitrite nitrogen react under floating stuffing surface with the effect of the anaerobic ammonia oxidizing bacteria of inner attachment, realize denitrogenation, the nitrogen produced is collected by the gas skirt 7 on reactor body 1 top, and to be overflowed reactor body 1 by venting port 8, gas skirt 7 is placed in the liquid seal trough 6 on reactor body 1 top, add appropriate amount of fluid in liquid seal trough 6 and carry out fluid-tight, to ensure that reactor body 1 is in anaerobic state, water outlet after process is flowed out from the water outlet 3 reactor body 1 end cap.
Content described in this specification sheets embodiment is only enumerating the way of realization of inventive concept; protection scope of the present invention should not be regarded as being only limitted to the specific form that embodiment is stated, protection scope of the present invention also comprises those skilled in the art and conceives the equivalent technologies means that can expect according to the present invention.
Claims (9)
1. a drum-type anaerobic ammonia oxidation reactor, it is characterized in that: comprise reactor body, central rotating shaft, the gas skirt of band venting port, liquid seal trough, the two side ends of described reactor body covers and is respectively equipped with water-in, water outlet, and the top sidewall of described reactor body is provided with multiple liquid seal trough; Described gas skirt is positioned at liquid seal trough; Described venting port is positioned at the top center place of gas skirt; Described reactor body and horizontally disposed central rotating shaft are coupling, described central rotating shaft and the output shaft fixed connection of motor; The central rotating shaft being positioned at reactor body inner chamber is equipped with stirring rake; Blade outer rim and the reactor body inwall of described stirring rake leave slit; Described reactor body inner chamber is separated into multiple independently lattice room through described blade, and floating stuffing is all filled in each lattice room.
2. a kind of drum-type anaerobic ammonia oxidation reactor as claimed in claim 1, is characterized in that: described reactor body is the cylinders of two ends with end cap, the length of cylinder: internal diameter ratio is 2.5 ~ 4:1.
3. a kind of drum-type anaerobic ammonia oxidation reactor as claimed in claim 2, is characterized in that: the blade of described stirring rake is rectangle, and described blade centrally rotating shaft radial distribution.
4. a kind of drum-type anaerobic ammonia oxidation reactor as claimed in claim 3, it is characterized in that: described stirring rake by three pieces centrally the radially-arranged rectangular paddle of rotating shaft form, described reactor body inner chamber is separated into three independently lattice rooms by described blade, the length of described blade: wide is 2.5 ~ 4:1, all blades are centered by central rotating shaft, the blade face angle of adjacent blades is 120 °, and the slit width between blade outer rim and reactor body inwall is less than 1.1cm.
5. a kind of drum-type anaerobic ammonia oxidation reactor as claimed in claim 4, is characterized in that: the volume ratio of three absolute case rooms is 1:1:1.
6. a kind of drum-type anaerobic ammonia oxidation reactor as claimed in claim 2, is characterized in that: the top sidewall of described reactor body is provided with three liquid seal troughs, and the corresponding gas skirt of each liquid seal trough, each gas skirt has a venting port.
7. a kind of drum-type anaerobic ammonia oxidation reactor as claimed in claim 6, it is characterized in that: the distance between adjacent two liquid seal troughs: two ends liquid seal trough and reactor body are 1.5 ~ 1:1 with the distance of side end cap, and liquid seal trough height is 0.125 ~ 0.2:1 with the ratio of the internal diameter of reactor body.
8. a kind of drum-type anaerobic ammonia oxidation reactor as claimed in claim 1, it is characterized in that: described floating stuffing shape is hollow cylindrical, floating stuffing material is polypropylene or polyethylene, or the mixed fillers of polypropylene segment and part polyethylene, diameter 2.5 ~ 2.7cm, height 1.1 ~ 1.3cm, density 0.90 ~ 0.98kg/m
3, the packing volume of floating stuffing accounts for 30% ~ 40% of reactor body volume.
9. a kind of drum-type anaerobic ammonia oxidation reactor as claimed in claim 1, it is characterized in that: described water-in is arranged on the bottom of one of them end cap of reactor body, water outlet is arranged on the top of another end cap of reactor body.
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| CN201510282785.0A CN105036319B (en) | 2015-05-28 | 2015-05-28 | A kind of drum-type anaerobic ammonia oxidation reactor |
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| CN201510282785.0A CN105036319B (en) | 2015-05-28 | 2015-05-28 | A kind of drum-type anaerobic ammonia oxidation reactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107140745A (en) * | 2017-05-06 | 2017-09-08 | 广汉海天洁诚水务有限公司 | A kind of trade effluent biofilm treatment apparatus |
| CN110697906A (en) * | 2019-09-26 | 2020-01-17 | 浙江海洋大学 | Integrated high-ammonia-nitrogen wastewater denitrification device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203295262U (en) * | 2013-06-24 | 2013-11-20 | 北京普世圣华科技有限公司 | Biological drum reactor |
| CN204714593U (en) * | 2015-05-28 | 2015-10-21 | 杭州师范大学 | Drum-type anaerobic ammonia oxidation reactor |
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2015
- 2015-05-28 CN CN201510282785.0A patent/CN105036319B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203295262U (en) * | 2013-06-24 | 2013-11-20 | 北京普世圣华科技有限公司 | Biological drum reactor |
| CN204714593U (en) * | 2015-05-28 | 2015-10-21 | 杭州师范大学 | Drum-type anaerobic ammonia oxidation reactor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107140745A (en) * | 2017-05-06 | 2017-09-08 | 广汉海天洁诚水务有限公司 | A kind of trade effluent biofilm treatment apparatus |
| CN110697906A (en) * | 2019-09-26 | 2020-01-17 | 浙江海洋大学 | Integrated high-ammonia-nitrogen wastewater denitrification device |
| CN110697906B (en) * | 2019-09-26 | 2021-11-19 | 浙江海洋大学 | Integrated high-ammonia-nitrogen wastewater denitrification device |
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| CN105036319B (en) | 2018-01-23 |
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Effective date of registration: 20200930 Address after: 311121 Room 501, floor 5, building 2, No. 12 Longtan Road, Cangqian street, Yuhang District, Hangzhou, Zhejiang Province Patentee after: Zhejiang Wole Environmental Technology Co.,Ltd. Address before: Hangzhou City, Zhejiang province 310036 Xiasha Higher Education Park forest Street No. 16 Patentee before: Hangzhou Normal University |
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Address after: 311100, 5th Floor, Building 18, No. 397 Cangxing Street, Cangqian Street, Yuhang District, Hangzhou City, Zhejiang Province Patentee after: Zhejiang Wole Technology Co.,Ltd. Address before: 311121 Room 501, 5 / F, building 2, No. 12, Longtan Road, Cangqian street, Yuhang District, Hangzhou, Zhejiang Province Patentee before: Zhejiang Wole Environmental Technology Co.,Ltd. |