CN101913705A - Composite biological rotary net device and synchronous nitrification and denitrification method thereof - Google Patents
Composite biological rotary net device and synchronous nitrification and denitrification method thereof Download PDFInfo
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- CN101913705A CN101913705A CN2010102596980A CN201010259698A CN101913705A CN 101913705 A CN101913705 A CN 101913705A CN 2010102596980 A CN2010102596980 A CN 2010102596980A CN 201010259698 A CN201010259698 A CN 201010259698A CN 101913705 A CN101913705 A CN 101913705A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The invention discloses a composite biological rotary net device and a synchronous nitrification and denitrification method thereof. The method is characterized by comprising the following steps of: calculating the number of the composite biological rotary net devices to be arranged according to the quantity of waste water to be treated, CODCr (Chemical Oxygen Demand) and the concentration of NH3-N, and placing the composite biological rotary net devices in one same biological reaction tank; adding a microbial agent or introducing activated sludge to form a synchronous nitrification and denitrification period in a process system; starting a reduction box (9) to drive a chain gear (7) to drive an upper rotary frame (3), a lower rotary frame (4) and carriers (10, 11) to rotate, and opening an air pipe valve (8); introducing 1.5-2 mg/L of dissolved oxygen to a water area of the upper rotary frame (3) through a middle single-side aerator pipe (5) so that the dissolved oxygen is provided for a biological film on the biological carrier (10) for an aerobic nitrification reaction; and isolating the diffusion of dissolved oxygen through an oxygen diffusion isolating board (6) and the rotation direction adjustment of the carrier (10). The concentration of water dissolved oxygen on the lower rotary frame (4) is 0.2-1.0 mg/L, and a biological film on the biological carrier (11) performs a biological anaerobic denitrification reaction under anaerobic conditions.
Description
Technical field
The present invention relates to a kind of wastewater biochemical denitrification processing device and synchronous nitration denitrification denitrogenation treatment process thereof, belong to the wastewater biological denitrificaion process field.
Background technology
All done a large amount of research and test at present both at home and abroad aspect biological denitrificaion, main direction is to carry out round aspects such as efficient, energy-conservation and reduction running costs, and that wherein attractes attention most has two kinds, the one, and " short-cut nitrification and denitrification " bio-denitrification technology; The 2nd, " synchronous nitration and denitrification " bio-denitrification technology.The emphasis research topic handled as high concentrated organic wastewater of these two kinds of Technologies in recent years.The existing abroad successful story of the research of " short-cut nitrification and denitrification ", and " synchronous nitration and denitrification " Study on Technology does not have more substantial progress.
It is that the technology method that adopts mainly contains the A/O method that the tradition wastewater biological denitrificaion is handled, the A/OO method, the A/A/O method, the O/A/O method, SBR method and CAST method and oxidation ditch process etc., A/O method in these Technologies, the A/OO method, the A/A/O method, the O/A/O method is finished biological nitration denitrification denitrogenation process by two-section type vast scale nitrification liquid backflow internal recycle, this processing method is to pass through the accumulation of nitration product nitroso-group nitrogen and nitrate earlier, and then carry out denitrification denitrogenation, weak point is the biochemical efficiency that the accumulation of nitroso-group nitrogen and nitrate can influence total system, and investment is big, floor space is many, and energy consumption and working cost are also very high.SBR method, CAST method and oxidation ditch process are stage nitration denitrification denitrogenation technology, weak point be nitric efficiency low, be difficult for promoting and use in transforming in other Technology, and energy consumption height, running cost height, complicated operation, and there is not " synchronous nitration and denitrification " function of practical significance.
Summary of the invention
The objective of the invention is to provide a kind of composite biological rotary net nitrogen rejection facility and synchronous nitrification and denitrification method thereof that can the simple optimizing replenishment of process at the deficiencies in the prior art, be characterized in directly a kind of composite biological rotary net device simple in structure, easy to use, be positioned in the common biological reaction tank and can carry out " synchronous nitration and denitrification " denitrogenation processing, overcome existing defective of traditional wastewater biological denitrificaion treatment process technology and deficiency.
Purpose of the present invention is by art technical measures realization down
Composite biological rotary net device contains upper and lower double-layer scaffold, multilayer rotating frame, bio-carrier, aeration tube, oxygen barrier diffuser plate, chain sprocket, air pipe valve and step-down gear; Double-layer scaffold is installed the multilayer rotating frame respectively, on the multilayer rotating frame with equidistantly along axial installing bio-carrier, and form to change net; Step-down gear connects multilayer rotating frame and the bio-carrier that is fixed on the framework by chain pitch wheel.
The bottom installing oxygen barrier diffuser plate of upper layer bracket is installed aeration tube on the oxygen barrier diffuser plate.
Step-down gear is connected with chain pitch wheel, drives the rotation of multilayer rotating frame.
Biological compound rotary net device is positioned in the biological reaction tank, and upper and lower multilayer rotating frame is immersed in the water fully, makes bio-carrier denitrogenation in the nitration denitrification process, and carries out in the one reaction pool inter-sync.
The synchronous nitration denitrification denitrogenation treatment process of biological compound rotary net device may further comprise the steps:
According to wastewater treatment capacity CODcr, NH
3The platform number of-N concentration calculating and setting composite biological rotary net device, and be positioned in the same biological reaction tank, according to the organic contamination substrate concentration, throw in microbial preparation or introduce a fine variety active sludge, form synchronous digestion and anti-digestion section in the process system, opening step-down gear drives in the chain pitch wheel driving, following multilayer rotating frame and carrier rotation, and unlatching air pipe valve, giving last layer multi-layer rotating frame waters by the one-sided aeration tube in centre with the dissolved oxygen of 1.5～2mg/L is that microbial film on the bio-carrier provides dissolved oxygen, the oxygen nitration reaction of acting charitably of going forward side by side, by the oxygen barrier diffuser plate, the carrier sense of rotation is isolated the dissolved oxygen diffusion, following layer multi-layer rotating frame, the water dissolution oxygen concn is 0.2～1.0mg/L, and the microbial film on the bio-carrier then carries out bio anaerobic denitrification dealkylation reaction under anoxic condition.
Performance test:
The SND technology that the utilization composite biological rotary net device forms is compared with traditional denitrification process and can be cut down the consumption of energy 50%, the water outlet total nitrogen is compared with traditional denitrification process can reduce by 80%, the reaction tank volume is 1/3 of traditional denitrification process, hydraulic detention time is 2/3 of traditional denitrification process, aeration rate is 1/1.8 of traditional denitrification process, and does not need to carry out the Digestive system backflow.Handle waste water and all can reach " integrated wastewater discharge standard " (GB6978-1996).
The present invention has the following advantages:
1, simple in structure, the material of composite biological rotary net device and accessory is common, in light weight, cost is low, device transportation and simple installation.
2, have nitric efficiency on year-on-year basis with traditional technology denitrification reaction pond and improve, and do not need to carry out nitrification liquid backflow denitrification denitrogenation, floor space can reduce 40%, and energy consumption reduces by 50%, reduced investment 30%, and operation is easy.
3, do not change original traditional waste water treatment process facility, can realize traditional biochemical water treatment technology skill upgrading transformation and denitride technology transformation quickly and easily.
Description of drawings
Fig. 1 is the composite biological rotary net stereographic map
Fig. 2 is the composite biological rotary net front view
Fig. 3 is a composite biological rotary net Side view
Fig. 4 is composite biological rotary net device processing set-up figure
The A water inlet, B composite biological rotary net device, C common response pond, D posticum, E blast main.
Fig. 5 is aeration tube, oxygen barrier diffuser plate constitutional diagram
Fig. 6 is biological carrier structure synoptic diagram
1 changes the web tier support, and 2 change layer support off the net, layer multi-layer carrier frame on 3,4 times layer multi-layer carrier frames, aeration tubes in the middle of 5,6 oxygen barrier diffuser plates, double-layer chain gear about in the of 7,8 air pipe valves, 9 step-down gears, 10 upper strata bio-carriers, 11 lower floor's bio-carriers.
Embodiment
Below by embodiment the present invention is carried out concrete description; be necessary to be pointed out that at this present embodiment just is used for the present invention is further specified; can not be interpreted as limiting the scope of the invention, the person skilled in the art in this field can make some nonessential improvement and adjustment according to the content of the invention described above.
Embodiment 1
Shown in Fig. 1-5, composite biological rotary net device contains upper and lower double-layer scaffold 1,2, multilayer rotating frame 3,4, bio-carrier 10,11, aeration tube 5, oxygen barrier diffuser plate 6, chain sprocket 7, air pipe valve 8 and step-down gear 9; Double-layer scaffold 1,2 is installed multilayer rotating frame 3,4 respectively, on the multilayer rotating frame 3,4 with equidistantly along axial installing bio-carrier 10,11, and form to change net; Step-down gear 9 connects rotating frame 3,4 and the bio-carrier 10,11 that is fixed on the framework by chain pitch wheel 7.
The bottom installing oxygen barrier diffuser plate 6 of upper layer bracket 1, installing aeration tube 5 on the oxygen barrier diffuser plate.
Step-down gear 9 is connected with chain pitch wheel 7, drives 3,4 rotations of multilayer rotating frame.
Biological compound rotary net device is positioned in the biological reaction tank, and upper and lower layer multi-layer rotating frame 3,4 is immersed in the water fully, makes bio-carrier denitrogenation in the nitration denitrification process, and carries out in the one reaction pool inter-sync.
The synchronous nitration denitrification denitrogenation treatment process of biological compound rotary net device may further comprise the steps:
According to wastewater treatment capacity COD
Cr, NH
3The platform number of-N concentration calculating and setting composite biological rotary net device, and be positioned in the same biological reaction tank, according to the organic contamination substrate concentration, throw in microbial preparation or introduce a fine variety active sludge, form the anti-section of digestion of synchronous digestion in the process system, opening step-down gear 9 drives in chain pitch wheel 7 drivings, following layer multi-layer rotating frame 3,4 and carrier 10,11 rotations, and unlatching air pipe valve 8, giving last layer multi-layer rotating frame 3 waters by the one-sided aeration tube 5 in centre with the dissolved oxygen of 1.5mg/L is that microbial film on the bio-carrier 10 provides dissolved oxygen to carry out the aerobic nitrification reaction, by oxygen barrier diffuser plate 6, carrier 10 sense of rotation are isolated the dissolved oxygen diffusion, following layer multi-layer rotating frame 4, the water dissolution oxygen concn is 0.2mg/L, and the microbial film on the bio-carrier 11 then carries out bio anaerobic denitrification dealkylation reaction under anoxic condition.
" synchronous nitration and denitrification " is called for short SND, and composite biological rotary net device can carry out multiple combination on the basis of traditional technology, can form A/S technology, A/A/S technology, A/S/O technology or O/A/S technology, has the function of " synchronous nitration and denitrification " denitrogenation.
Device by embodiment 1 carries out the synchronous nitration denitrification denitrogenation processing.
The synchronous nitration denitrification denitrogenation treatment process of biological compound rotary net device may further comprise the steps:
According to wastewater treatment capacity COD
Cr, NH
3The platform number of-N concentration calculating and setting composite biological rotary net device, and be positioned in the same biological reaction tank, according to the organic contamination substrate concentration, throw in microbial preparation or introduce a fine variety active sludge, form the anti-section of digestion of synchronous digestion in the process system, opening step-down gear 9 drives in chain pitch wheel 7 drivings, following layer multi-layer rotating frame 3,4 and carrier 10,11 rotations, and unlatching air pipe valve 8, giving last layer multi-layer rotating frame 3 waters by the one-sided aeration tube 5 in centre with the dissolved oxygen of 2mg/L is that microbial film on the bio-carrier 10 provides dissolved oxygen to carry out the aerobic nitrification reaction, by oxygen barrier diffuser plate 6, carrier 10 sense of rotation are isolated the dissolved oxygen diffusion, following layer multi-layer rotating frame 4, the water dissolution oxygen concn is 1.0mg/L, and the microbial film on the bio-carrier 11 then carries out bio anaerobic denitrification dealkylation reaction under anoxic condition.
" synchronous nitration and denitrification " is called for short SND, and composite biological rotary net device can carry out multiple combination on the basis of traditional technology, can form A/S technology, A/A/S technology, A/S/O technology, O/A/S technology and have the function of " synchronous nitration and denitrification " denitrogenation.
Device by embodiment 1 carries out the synchronous nitration denitrification denitrogenation processing.
The synchronous nitration denitrification denitrogenation treatment process of biological compound rotary net device may further comprise the steps:
According to wastewater treatment capacity COD
Cr, NH
3The platform number of-N concentration calculating and setting composite biological rotary net device, and be positioned in the same biological reaction tank, according to the organic contamination substrate concentration, throw in microbial preparation or introduce a fine variety active sludge, form the anti-section of digestion of synchronous digestion in the process system, opening step-down gear 9 drives in chain pitch wheel 7 drivings, following layer multi-layer rotating frame 3,4 and carrier 10,11 rotations, and unlatching air pipe valve 8, giving last layer multi-layer rotating frame 3 waters by the one-sided aeration tube 5 in centre with the dissolved oxygen of 1.8mg/L is that microbial film on the bio-carrier 10 provides dissolved oxygen to carry out the aerobic nitrification reaction, by oxygen barrier diffuser plate 6, carrier 10 sense of rotation are isolated the dissolved oxygen diffusion, following layer multi-layer rotating frame 4, the water dissolution oxygen concn is 0.5mg/L, and the microbial film on the bio-carrier 11 then carries out bio anaerobic denitrification dealkylation reaction under anoxic condition.
" synchronous nitration and denitrification " is called for short SND, and composite biological rotary net device can carry out multiple combination on the basis of traditional technology, can form A/S technology, A/A/S technology, A/S/O technology, O/A/S technology and have the function of " synchronous nitration and denitrification " denitrogenation.
Claims (5)
1. composite biological rotary net device is characterized in that this device contains upper and lower double-layer scaffold (1,2), multilayer rotating frame (3,4), bio-carrier (10,11), aeration tube (5), oxygen barrier diffuser plate (6), chain sprocket (7), air pipe valve (8) and step-down gear (9); Double-layer scaffold (1,2) is installed multilayer rotating frame (3,4) respectively, on the multilayer rotating frame with equidistantly along axial installing bio-carrier (10,11), and form to change net; Step-down gear (9) connects multilayer rotating frame and the bio-carrier (10,11) that is fixed on the multilayer rotating frame by chain pitch wheel (7).
2. compound according to claim 1 rotary net device is characterized in that oxygen barrier diffuser plate (6) is installed in the bottom of upper layer bracket (1), installs aeration tube (5) on the oxygen barrier diffuser plate.
3. biological according to claim 1 compound rotary net device is characterized in that step-down gear (9) is connected with chain pitch wheel (7), drives multilayer rotating bezel (3,4) rotation.
4. biological according to claim 1 compound rotary net device, it is characterized in that this device is positioned in the biological reaction tank, is immersed in upper and lower multilayer rotating frame (3,4) in the water fully, make bio-carrier denitrogenation in carrying out the nitration denitrification process, and carry out in the one reaction pool inter-sync.
5. as the synchronous nitrification and denitrification method of the compound rotary net device of biology as described in one of claim 1～4, it is characterized in that this method may further comprise the steps:
According to wastewater treatment capacity COD
Cr, NH
3The platform number of-N concentration calculating and setting composite biological rotary net device, and be positioned in the same biological reaction tank, according to the organic contamination substrate concentration, throw in microbial preparation or introduce a fine variety active sludge, form the anti-section of digestion of synchronous digestion in the process system, opening step-down gear (9) drives in chain pitch wheel (7) driving, following layer multi-layer rotating frame (3,4) and carrier (10,11) rotation, and unlatching air pipe valve (8), giving last layer multi-layer rotating frame (3) waters by the one-sided aeration tube in centre (5) with the dissolved oxygen of 1.5～2mg/L is that microbial film on the bio-carrier (10) provides dissolved oxygen to carry out the aerobic nitrification reaction, by oxygen barrier diffuser plate (6), carrier (10) sense of rotation is isolated the dissolved oxygen diffusion, following layer multi-layer rotating frame (4), the water dissolution oxygen concn is 0.2～1.0mg/L, and the microbial film on the bio-carrier (11) then carries out bio anaerobic denitrification dealkylation reaction under anoxic condition.
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| CN2010102596980A CN101913705A (en) | 2010-08-23 | 2010-08-23 | Composite biological rotary net device and synchronous nitrification and denitrification method thereof |
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| CN2010102596980A CN101913705A (en) | 2010-08-23 | 2010-08-23 | Composite biological rotary net device and synchronous nitrification and denitrification method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103253769A (en) * | 2013-05-24 | 2013-08-21 | 四川环能德美科技股份有限公司 | Automatic aeration-type biological membrane transfer device |
| CN107235563A (en) * | 2017-08-13 | 2017-10-10 | 贾新奎 | A kind of biofilm reactor sewage-treatment plant |
| CN109292975A (en) * | 2018-11-06 | 2019-02-01 | 杭州沁欣环保科技有限公司 | A kind of nitration denitrification integrated apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5539264A (en) * | 1978-09-13 | 1980-03-19 | Niigata Eng Co Ltd | Rotary disk type nitrogen removing apparatus |
-
2010
- 2010-08-23 CN CN2010102596980A patent/CN101913705A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5539264A (en) * | 1978-09-13 | 1980-03-19 | Niigata Eng Co Ltd | Rotary disk type nitrogen removing apparatus |
Non-Patent Citations (1)
| Title |
|---|
| 《哈尔滨工业大学学报》 20061231 陈志强等 网状生物转盘处理污水试验研究 2077-2080 1－5 第38卷, 第12期 2 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103253769A (en) * | 2013-05-24 | 2013-08-21 | 四川环能德美科技股份有限公司 | Automatic aeration-type biological membrane transfer device |
| CN107235563A (en) * | 2017-08-13 | 2017-10-10 | 贾新奎 | A kind of biofilm reactor sewage-treatment plant |
| CN108218119A (en) * | 2017-08-13 | 2018-06-29 | 贾新奎 | A kind of biofilm reactor sewage-treatment plant |
| CN107235563B (en) * | 2017-08-13 | 2018-08-14 | 山西华通蓝天环保有限公司 | A kind of biofilm reactor sewage-treatment plant |
| CN109292975A (en) * | 2018-11-06 | 2019-02-01 | 杭州沁欣环保科技有限公司 | A kind of nitration denitrification integrated apparatus |
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Application publication date: 20101215 |