CN205387499U - Good oxygen nitrifies - oxygen deficiency denitrification biological filter denitrification device - Google Patents
Good oxygen nitrifies - oxygen deficiency denitrification biological filter denitrification device Download PDFInfo
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- CN205387499U CN205387499U CN201521100686.8U CN201521100686U CN205387499U CN 205387499 U CN205387499 U CN 205387499U CN 201521100686 U CN201521100686 U CN 201521100686U CN 205387499 U CN205387499 U CN 205387499U
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Abstract
The utility model discloses a good oxygen nitrifies - oxygen deficiency denitrification biological filter denitrification device, including anaerobism pond, good oxygen pond, bottom suspension fagging, last backup pad and anaerobism pond lateral wall form the anaerobism cavity, have placed a plurality of anaerobism biofilm carrier in the anaerobism cavity, anaerobism biofilm carrier comprises in anaerobism support surface's anaerobic microorganisms membrane with hanging to cover the anaerobism carrier, sieve, upper screen deck are do not installed down to good oxygen pond lower part, top, this down sieve, upper screen deck become reconciled oxygen pond lateral wall and has formed the oxygen cavity, the good oxygen biofilm carrier of a plurality of has been placed in the good oxygen cavity, good oxygen biofilm carrier comprises in good oxygen support surface's good oxygen microbial film with hanging to cover the good carrier of oxygen, the upper portion of an aeration section of thick bamboo is provided with backward flow window portion, window position in the upper screen deck top of should flowing back, and this backward flow window portion side surface has a plurality of fenestra along circumference evenly distributed. The utility model discloses guarantee that the anaerobism higher BOD5TN in filtering pond compares, the common effect of getting rid of that improves total nitrogen to reduce the backward flow of nitrifying liquid, save the engineering working costs.
Description
Technical field
This utility model relates to a kind of aerobic nitrification-anoxic denitrification biofilter nitrogen rejection facility, belongs to technical field of sewage.
Background technology
Current domestic most employing tradition nitrification-denitrification biological denitrificaion (i.e. A/O) technique carries out denitrogenation processing, generally remove through Ammonification, Nitrification and three processes of Denitrification, wherein Ammonification is the process that larger molecular organics is synthesized ammonia nitrogen by microbial action, Nitrification is under aerobic condition, ammonium oxidation is become the process of nitrate by nitrobacteria, and this process provides substrate for Denitrification；Denitrification is that microorganism utilizes nitrate as electron acceptor, utilizes Organic substance as carbon source, by the process that nitrate reduction is gaseous nitrogen removal system.
Existing denitrification process there is problems in that
(1) denitrification process process needs to consume organic carbon source, but the organic carbon concentration in current a lot of waste water is relatively low, it is impossible to reaching denitrification requirement, additional carbon adds construction investment；
(2) traditional denitrification process is it is generally required to nitrification liquid and sludge reflux, and therefore required hydraulic detention time is longer, causes capital expenditure and operating cost higher；
(3) nitrifying process in tradition denitrification process and denitrification process are mutually contradictory, nitrifying process is completed by the aerobic bacteria of autotrophy, and denitrification is completed by the anaerobe of different oxygen, two processes are opposed and the microbial population generation cycle differs greatly, and are that whole technique becomes complicated.
Summary of the invention
This utility model purpose is to provide a kind of aerobic nitrification-anoxic denitrification biofilter nitrogen rejection facility, and this aerobic nitrification-anoxic denitrification biofilter nitrogen rejection facility passes through preposition anaerobic filter, can keep higher BOD5/ TN ratio, provides sufficient carbon source for denitrifying bacterium, it is ensured that being smoothed out of denitrification denitrogenation.Research shows, by preposition anaerobic biofilter, the clearance of TN is reached 80.6%, and the clearance of TN is only 71.3% by conventional denitrification section, has obvious denitrogenation advantage.
For reaching above-mentioned purpose, the technical solution adopted in the utility model is: a kind of aerobic nitrification-anoxic denitrification biofilter nitrogen rejection facility, including anaerobic pond, Aerobic Pond, the top of described anaerobic pond is connected by intervalve with the bottom of Aerobic Pond, the bottom of described anaerobic pond is connected to sewage water inlet pipe, and the top of described Aerobic Pond is connected to drain pipe；
Described anaerobic pond bottom, top are separately installed with lower supporting plate, upper backup pad, this lower supporting plate, upper backup pad and anaerobic pond sidewall form anaerobism cavity, being placed with several Anaerobe fillers in described anaerobic cavity body, the anaerobe film that described Anaerobe filler is overlying on anaerobism carrier surface by anaerobism carrier and extension forms；
Described Aerobic Pond bottom, top are separately installed with lower sieve plate, upper sieve plate, this lower sieve plate, upper sieve plate and Aerobic Pond sidewall form aerobic cavity, being placed with several aerobe fillers in described aerobic cavity body, the aerobic microbiological film that described aerobe filler is overlying on aerobic carrier surface by the good carrier of oxygen and extension forms；
Described anaerobism carrier, the good carrier of oxygen all include hollow short pipe, are concentrically disposed with the concentric ring outside hollow short pipe, are connected by even muscle between hollow short pipe with concentric ring；
Described Aerobic Pond is vertically arranged with under an embedding sieve plate, the aeration cylinder of upper sieve plate centre, one aeration head is positioned at bottom aeration cylinder, one oxygen hose for transmitting oxygen is positioned at aeration cylinder and is connected to described aeration head, and described aerobe filler is between Aerobic Pond sidewall and aeration cylinder；
The top of described aeration cylinder is provided with back window portion, and this back window portion is positioned at above upper sieve plate, and this back window portion side surface has been uniformly distributed circumferentially several fenestras.
The technical scheme improved further in technique scheme is as follows:
As preferably, a return duct is between drain pipe and sewage water inlet pipe.
As preferably, described return duct being provided with a valve.
As preferably, described sewage water inlet pipe is connected to region between bottom lower supporting plate and anaerobic pond.
As preferably, described drain pipe is connected to Aerobic Pond and is positioned at the region above upper sieve plate.
Owing to technique scheme is used, this utility model compared with prior art has following advantages and effect:
1. this utility model aerobic nitrification-anoxic denitrification biofilter nitrogen rejection facility, it passes through preposition anaerobic filter, can keep higher BOD5/ TN ratio, provides sufficient carbon source for denitrifying bacterium, it is ensured that being smoothed out of denitrification denitrogenation.Research shows, by preposition anaerobic biofilter, the clearance of TN is reached 80.6%, and the clearance of TN is only 71.3% by conventional denitrification section, has obvious denitrogenation advantage.
2. this utility model aerobic nitrification-anoxic denitrification biofilter nitrogen rejection facility, its aerobic section adopts inner circulating aerating biological filtering tank, by regulating aeration rate, realize synchronous nitration and denitrification effect, reduce the backflow of nitrification liquid simultaneously, save engineering operation expense, and ensure the BOD that anaerobic filter is higher5/ TN ratio, improves the removal effect to total nitrogen jointly.
Accompanying drawing explanation
Accompanying drawing 1 is this utility model aerobic nitrification-anoxic denitrification biofilter nitrogen rejection facility structural representation；
Accompanying drawing 2 is the biologic packing material structural representation in accompanying drawing 1.
In the figures above: 1, anaerobic pond；2, Aerobic Pond；3, intervalve；4, sewage water inlet pipe；5, drain pipe；6, lower supporting plate；7, upper backup pad；8, anaerobism cavity；9, Anaerobe filler；10, anaerobism carrier；101, hollow short pipe；102, concentric ring；103, muscle is connected；11, lower sieve plate；12, upper sieve plate；13, aerobic cavity；14, aerobe filler；15, the good carrier of oxygen；16, aeration cylinder；17, aeration head；18, oxygen hose；19, back window portion；20, fenestra；21, return duct；22, valve.
Detailed description of the invention
Below in conjunction with embodiment, this utility model is further described:
Embodiment 1: a kind of aerobic nitrification-anoxic denitrification biofilter nitrogen rejection facility, including anaerobic pond 1, Aerobic Pond 2, the top of described anaerobic pond 1 is connected by intervalve 3 with the bottom of Aerobic Pond 2, the bottom of described anaerobic pond 1 is connected to sewage water inlet pipe 4, and the top of described Aerobic Pond 2 is connected to drain pipe 5；
Described anaerobic pond 1 bottom, top are separately installed with lower supporting plate 6, upper backup pad 7, this lower supporting plate 6, upper backup pad 7 and anaerobic pond 1 sidewall form anaerobism cavity 8, being placed with several Anaerobe fillers 9 in described anaerobism cavity 8, the anaerobe film that described Anaerobe filler 9 is overlying on anaerobism carrier 10 surface by anaerobism carrier 10 and extension forms；
Described Aerobic Pond 2 bottom, top are separately installed with lower sieve plate 11, upper sieve plate 12, this lower sieve plate 11, upper sieve plate 12 and Aerobic Pond 2 sidewall form aerobic cavity 13, being placed with several aerobe fillers 14 in described aerobic cavity 13, the aerobic microbiological film that described aerobe filler 14 has been overlying on the carrier of oxygen 15 surface by the good carrier of oxygen 15 and extension forms；
Described anaerobism carrier 10, the good carrier of oxygen 15 all include hollow short pipe 101, are concentrically disposed with the concentric ring 102 outside hollow short pipe 101, are connected by even muscle 103 between hollow short pipe 101 with concentric ring 102；
Described Aerobic Pond 2 is vertically arranged with under an embedding sieve plate 11, the aeration cylinder 16 of upper sieve plate 12 centre, one aeration head 17 is positioned at bottom aeration cylinder 16, one oxygen hose 18 for transmitting oxygen is positioned at aeration cylinder 16 and is connected to described aeration head 17, and described aerobe filler 14 is between Aerobic Pond 2 sidewall and aeration cylinder 16；
The top of described aeration cylinder 16 is provided with back window portion 19, and this back window portion 19 is positioned at above upper sieve plate 12, and this back window portion 19 side surface has been uniformly distributed circumferentially several fenestras 20.
One return duct 21 is between drain pipe 5 and sewage water inlet pipe 4.
Above-mentioned return duct 21 is provided with a valve 22.
Embodiment 2: a kind of aerobic nitrification-anoxic denitrification biofilter nitrogen rejection facility, including anaerobic pond 1, Aerobic Pond 2, the top of described anaerobic pond 1 is connected by intervalve 3 with the bottom of Aerobic Pond 2, the bottom of described anaerobic pond 1 is connected to sewage water inlet pipe 4, and the top of described Aerobic Pond 2 is connected to drain pipe 5；
Described anaerobic pond 1 bottom, top are separately installed with lower supporting plate 6, upper backup pad 7, this lower supporting plate 6, upper backup pad 7 and anaerobic pond 1 sidewall form anaerobism cavity 8, being placed with several Anaerobe fillers 9 in described anaerobism cavity 8, the anaerobe film that described Anaerobe filler 9 is overlying on anaerobism carrier 10 surface by anaerobism carrier 10 and extension forms；
Described Aerobic Pond 2 bottom, top are separately installed with lower sieve plate 11, upper sieve plate 12, this lower sieve plate 11, upper sieve plate 12 and Aerobic Pond 2 sidewall form aerobic cavity 13, being placed with several aerobe fillers 14 in described aerobic cavity 13, the aerobic microbiological film that described aerobe filler 14 has been overlying on the carrier of oxygen 15 surface by the good carrier of oxygen 15 and extension forms；
Described anaerobism carrier 10, the good carrier of oxygen 15 all include hollow short pipe 101, are concentrically disposed with the concentric ring 102 outside hollow short pipe 101, are connected by even muscle 103 between hollow short pipe 101 with concentric ring 102；
Described Aerobic Pond 2 is vertically arranged with under an embedding sieve plate 11, the aeration cylinder 16 of upper sieve plate 12 centre, one aeration head 17 is positioned at bottom aeration cylinder 16, one oxygen hose 18 for transmitting oxygen is positioned at aeration cylinder 16 and is connected to described aeration head 17, and aerobe filler 14 is between Aerobic Pond 2 sidewall and aeration cylinder 16；
The top of described aeration cylinder 16 is provided with back window portion 19, and this back window portion 19 is positioned at above upper sieve plate 12, and this back window portion 19 side surface has been uniformly distributed circumferentially several fenestras 20.
Above-mentioned sewage water inlet pipe 4 is connected to region between bottom lower supporting plate 6 and anaerobic pond 1.
Above-mentioned drain pipe 5 is connected to Aerobic Pond 2 and is positioned at the region above upper sieve plate 12.
When adopting above-mentioned aerobic nitrification-anoxic denitrification biofilter nitrogen rejection facility, it passes through preposition anaerobic filter, can keep higher BOD5/ TN ratio, provides sufficient carbon source for denitrifying bacterium, it is ensured that being smoothed out of denitrification denitrogenation.Research shows, by preposition anaerobic biofilter, the clearance of TN is reached 80.6%, and the clearance of TN is only 71.3% by conventional denitrification section, has obvious denitrogenation advantage；Secondly, this utility model internal recycle A/O biological denitrification apparatus, its aerobic section adopts inner circulating aerating biological filtering tank, by regulating aeration rate, it is achieved synchronous nitration and denitrification effect, reduce the backflow of nitrification liquid simultaneously, save engineering operation expense, and ensure the BOD that anaerobic filter is higher5/ TN ratio, improves the removal effect to total nitrogen jointly.
Above-described embodiment only for technology of the present utility model design and feature are described, its object is to allow person skilled in the art will appreciate that content of the present utility model and to implement according to this, can not limit protection domain of the present utility model with this.All equivalences made according to this utility model spirit change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (5)
1. aerobic nitrification-anoxic denitrification biofilter nitrogen rejection facility, it is characterized in that: include anaerobic pond (1), Aerobic Pond (2), the top of described anaerobic pond (1) is connected by intervalve (3) with the bottom of Aerobic Pond (2), the bottom of described anaerobic pond (1) is connected to sewage water inlet pipe (4), and the top of described Aerobic Pond (2) is connected to drain pipe (5)；
Described anaerobic pond (1) bottom, top are separately installed with lower supporting plate (6), upper backup pad (7), this lower supporting plate (6), upper backup pad (7) and anaerobic pond (1) sidewall form anaerobism cavity (8), being placed with several Anaerobe fillers (9) in described anaerobism cavity (8), the anaerobe film that described Anaerobe filler (9) is overlying on anaerobism carrier (10) surface by anaerobism carrier (10) and extension forms；
Described Aerobic Pond (2) bottom, top are separately installed with lower sieve plate (11), upper sieve plate (12), this lower sieve plate (11), upper sieve plate (12) and Aerobic Pond (2) sidewall form aerobic cavity (13), being placed with several aerobe fillers (14) in described aerobic cavity (13), the aerobic microbiological film that described aerobe filler (14) has been overlying on the carrier of oxygen (15) surface by the good carrier of oxygen (15) and extension forms；
Described anaerobism carrier (10), the good carrier of oxygen (15) all include hollow short pipe (101), are concentrically disposed with in the concentric ring (102) in hollow short pipe (101) outside, are connected by even muscle (103) between hollow short pipe (101) with concentric ring (102)；
Described Aerobic Pond (2) is vertically arranged with under an embedding sieve plate (11), the aeration cylinder (16) of upper sieve plate (12) centre, one aeration head (17) is positioned at aeration cylinder (16) bottom, one oxygen hose (18) for transmitting oxygen is positioned at aeration cylinder (16) and is connected to described aeration head (17), and described aerobe filler (14) is positioned between Aerobic Pond (2) sidewall and aeration cylinder (16)；
The top of described aeration cylinder (16) is provided with back window portion (19), and this back window portion (19) is positioned at upper sieve plate (12) top, and this back window portion (19) side surface has been uniformly distributed circumferentially several fenestras (20).
2. aerobic nitrification according to claim 1-anoxic denitrification biofilter nitrogen rejection facility, it is characterised in that: described sewage water inlet pipe (4) is connected to region between lower supporting plate (6) and anaerobic pond (1) bottom.
3. aerobic nitrification according to claim 1-anoxic denitrification biofilter nitrogen rejection facility, it is characterised in that: described drain pipe (5) is connected to Aerobic Pond (2) and is positioned at the region of upper sieve plate (12) top.
4. aerobic nitrification according to claim 1-anoxic denitrification biofilter nitrogen rejection facility, it is characterised in that: described return duct (21) is provided with a valve (22).
5. aerobic nitrification according to claim 1-anoxic denitrification biofilter nitrogen rejection facility, it is characterised in that: a return duct (21) is positioned between drain pipe (5) and sewage water inlet pipe (4).
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| CN201521100686.8U CN205387499U (en) | 2015-12-27 | 2015-12-27 | Good oxygen nitrifies - oxygen deficiency denitrification biological filter denitrification device |
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| CN201521100686.8U CN205387499U (en) | 2015-12-27 | 2015-12-27 | Good oxygen nitrifies - oxygen deficiency denitrification biological filter denitrification device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107673471A (en) * | 2016-08-01 | 2018-02-09 | 苏州科环环保科技有限公司 | Aerobic nitrification biofilter anoxic denitrification biofilter denitrification system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107673471A (en) * | 2016-08-01 | 2018-02-09 | 苏州科环环保科技有限公司 | Aerobic nitrification biofilter anoxic denitrification biofilter denitrification system |
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