CN108862585A - A kind of starting and the stable apparatus and method for maintaining municipal sewage short distance nitration - Google Patents
A kind of starting and the stable apparatus and method for maintaining municipal sewage short distance nitration Download PDFInfo
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- CN108862585A CN108862585A CN201810739334.9A CN201810739334A CN108862585A CN 108862585 A CN108862585 A CN 108862585A CN 201810739334 A CN201810739334 A CN 201810739334A CN 108862585 A CN108862585 A CN 108862585A
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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
- C02F3/006—Regulation methods for biological treatment
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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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
- C02F3/303—Nitrification and denitrification treatment characterised by the nitrification
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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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
- C02F3/307—Nitrification and denitrification treatment characterised by direct conversion of nitrite to molecular nitrogen, e.g. by using the Anammox process
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- Water Supply & Treatment (AREA)
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- Organic Chemistry (AREA)
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Activated Sludge Processes (AREA)
Abstract
A kind of starting and the stable apparatus and method for maintaining municipal sewage short distance nitration, belong to urban sewage treatment field.The device is mainly by raw water box, municipal sewage short-range nitrifying device, complete nitrification device, sludge treatment equipment and sludge refluxing apparatus composition.This method is, after high-temperature process activated sludge, AOB and NOB regeneration rate difference start short distance nitration, and sludge treatment equipment combined to improve short distance nitration operation stability, thus starting and stable operation municipal sewage short distance nitration.The device is easy to operate, and automatic control level is high, and short distance nitration saves aeration quantity, and sludge yield is low, reduces processing cost.
Description
Technical field
A kind of relevant starting of the present invention and the stable apparatus and method for maintaining municipal sewage short distance nitration, belong to city dirt
Aquatic organism process field, the municipal sewage denitrogenation processing suitable for low-carbon ratio；
Background technique
In recent years, water eutrophication problem in China's occurred again and again, and reason is Water, P elements it is exceeded,
Therefore for nitrogen, the processing requirement of phosphorus is higher and higher for municipal sewage plant；Compared to dephosphorization, the removal problem of nitrogen is more urgent,
The process of denitrogenation is also urgently to improve；
The short-cut nitrification and denitrification of rising in recent years, short distance nitration Anammox denitrification process, has many advantages, such as,
Such as：Aeration quantity is saved, the reaction time is saved, carbon source needed for saving denitrification, sludge yield reduces, and saves processing cost, but lack
A kind of weary quick start for stablizing effective short distance nitration and stable operation method；
Currently, the method for realizing short distance nitration mainly has high concentration free ammonia (FA) and the free nitrite of high concentration
(FNA), low dissolved oxygen (DO), short sludge age (SRT) control in conjunction with aeration time, lack aerobic intermittent aerating means and add inhibition
Although agent etc., above method are able to achieve short distance nitration, but it is longer to start the time, and short distance runs and is difficult to stablize maintenance, and one
Aeration phenomenon occurred for denier, and short distance is just destroyed；
The present invention reduces ammonia oxidation bacteria (AOB) and nitrite oxidizing bacteria (NOB) activity by high temperature inhibition, then sharp
It is fast compared with NOB with AOB activation recovering during recovery, it realizes the quick start of short distance nitration, inhibits and restore using the sludge of side
Device is strengthened and short distance nitration is maintained to run steadily in the long term；
Summary of the invention
It is an object of the invention to propose a set of starting and stablize the method for maintaining municipal sewage short distance nitration, the present invention
Activated sludge is pre-processed using high temperature, while reducing AOB and NOB activity, but in convalescence, AOB activation recovering rate
It is fast compared with NOB, so that ammonia oxidation speed rate is greater than nitrite-oxidizing rate, then when reactor is run, is aided with the inhibition of side high temperature
With recovery device, it can start and stablize maintenance municipal sewage short distance nitration.
A kind of starting and the stable apparatus and method for maintaining municipal sewage short distance nitration, it is characterised in that：By municipal sewage
Raw water box (1), municipal sewage short-range nitrifying device, complete nitrification device, sludge treatment equipment and sludge refluxing apparatus composition；
Municipal sewage short-range nitrifying device includes third aeration pump (28), third flowmeter (29), third aeration head (31),
Third blender (32), the 3rd pH pop one's head in (33), and the 3rd DO pops one's head in (34), third Water Test Kits (35), third sampling valve
(36), third drain valve (39), the devices such as third draining pump (40)；
Municipal sewage complete nitrification device includes the first aeration pump (7), first flowmeter (6), the first aeration head (5), the
One blender (8), the first pH pop one's head in (9), and the first DO pops one's head in (10), the first Water Test Kits (12), the first sampling valve (11), the
One drain valve (13), the devices such as first draining pump (14)；
Sludge treatment equipment includes the second aeration pump (20), second flowmeter (19), the second aeration head (18), the second stirring
Device (21), the 2nd pH pop one's head in (22), and the 2nd DO pops one's head in (23), the second Water Test Kits (24), the second sampling valve (25), second row
Water valve (44), the devices such as second draining pump (43)；
Sludge refluxing apparatus is made of return valve and reflux pump；
Municipal sewage short-range nitrifying device, it is dirty by three sets between municipal sewage complete nitrification device and sludge treatment equipment
The connection of mud reflux unit.
Municipal sewage short-range nitrifying device carries out preposition anoxic denitrification first, then carries out short distance nitration, realizes nitrogen
Removal, reaction terminate, sedimentation and drawing；
Municipal sewage complete nitrification device carries out preposition anoxic denitrification after municipal sewage enters, and then carries out whole nitre
Change, the effect of the present apparatus is mainly that sludge treatment equipment provides activated sludge, and has certain denitrification effect；
Sludge treatment equipment after complete nitrification activated sludge enters, carries out high temperature inhibition and recovery processing, makes whole activity
Sludge is changed into short distance nitration sludge, to start and maintain municipal sewage short distance nitration；
A kind of starting provided by the invention simultaneously stablizes the apparatus and method for maintaining municipal sewage short distance nitration, including following step
Suddenly：
Sewage is filled through third intake pump (37) and third inlet valve (38) into short distance nitration in municipal sewage raw water box (1)
It sets (30), the monocycle, the method for operation was as follows after water inlet, and intake 20min, anoxia stirring 90min are aerated 120min, precipitate 30min,
20min is drained, leave unused 200min, 3 cycles/days, and temperature is room temperature during operation, and DO is greater than 3mg/L, and pH changes with influent quality
(6.8-7.5), sludge concentration maintains 3500 ± 200mg/L；
Sewage enters complete nitrification device through the first intake pump (2) and the first inlet valve (3) in municipal sewage raw water box (1)
(4), the monocycle method of operation is as follows after water inlet, and intake 20min, anoxia stirring 90min are aerated 120min, precipitates 30min, row
Water 20min, leave unused 200min, 3 cycles/days, and temperature is room temperature during operation, and DO is greater than 3mg/L, and pH changes with influent quality
(6.8-7.5), sludge concentration maintains 4000 ± 200mg/L；
Sludge treatment equipment is mainly inhibited and is restored to activated sludge, and concrete operations are 50% muddy water of complete nitrification
Mixture after the first sludge pump (15) and the first sludge valve (16) enter sludge treatment equipment, by activated sludge with 50 DEG C with
Upper high temperature inhibits 30min, then enters municipal sewage through the second intake pump (45) and the second inlet valve (46), starts to be aerated extensive
It is multiple, continuous aeration 10 days, pH curve during which is monitored according to Water Test Kits (24), when there is the i.e. ammonia valley point of inflection point in pH curve,
Just stop aeration, reenter municipal sewage and carry out aeration recovery, by 50% mud mixture of reactor through the second dirt after 10 days
Dredge pump (27) and the second sludge valve (26) enter municipal sewage short-range nitrifying device (30), while municipal sewage short distance nitration fills
(30) are set to fill through third sludge pump (41) and third sludge valve (42) 50% mud mixture of reflux to municipal sewage complete nitrification
Set (4)；
Single cycle end of run repeats above step operation.
The technical principle of the method for the present invention：High-temperature process can kill part NOB but not influence AOB, AOB and NOB after processing
Activity has of short duration inhibition, but in convalescence, AOB activation recovering is fast compared with NOB, to realize quickly opening for short distance nitration
It is dynamic, side high temperature treating device is recycled, short distance nitration process is continually strengthened, to maintain long-term short distance nitration；
A kind of starting of the present invention simultaneously stablizes the apparatus and method for maintaining municipal sewage short distance nitration, has compared with the prior art
There is following advantage：
The short distance nitration starting period is short, stable, and no additional agent adds expense, and main energy consumption comes from high temperature, in conjunction with
Sludge pyrohydrolysis waste heat can solve high temperature and carry out source problem；
Apparatus of the present invention are three sets of sbr reactor devices, and operation is easy to control, and succinctly, During Process of Long-term Operation does not need other auxiliary
Equipment is helped, personal management requirement and expense are greatly reduced；
Table 1 is municipal sewage water quality figure.
Detailed description of the invention
Fig. 1 is AOB and NOB activity change figure before high-temperature process activated sludge and convalescence；
Fig. 2 is three nitrogen change in long term figure of short distance nitration reactor；
Ammonia nitrogen removal frank and nitrite accumulation rate variation diagram during Fig. 3 is short distance nitration reactor longtime running；
Fig. 4 is reactor assembly figure；
Specific embodiment
Implement to further illustrate technical solution of the present invention below with reference to test；
Implementation steps of the invention are as follows；
Sewage is filled through third intake pump (37) and third inlet valve (38) into short distance nitration in municipal sewage raw water box (1)
It sets (30), the monocycle, the method for operation was as follows after water inlet, and intake 20min, anoxia stirring 90min are aerated 120min, precipitate 30min,
20min is drained, leave unused 200min, 3 cycles/days, and temperature is room temperature during operation, and DO is greater than 3mg/L, and pH changes with influent quality
(6.8-7.5), sludge concentration maintains 3500 ± 200mg/L；
Sewage enters complete nitrification device through the first intake pump (2) and the first inlet valve (3) in municipal sewage raw water box (1)
(4), the monocycle method of operation is as follows after water inlet, and intake 20min, anoxia stirring 90min are aerated 120min, precipitates 30min, row
Water 20min, leave unused 200min, 3 cycles/days, and temperature is room temperature during operation, and DO is greater than 3mg/L, and pH changes with influent quality
(6.8-7.5), sludge concentration maintains 4000 ± 200mg/L；
Sludge treatment equipment is mainly inhibited and is restored to activated sludge, and concrete operations are 50% muddy water of complete nitrification
Mixture after the first sludge pump (15) and the first sludge valve (16) enter sludge treatment equipment, by activated sludge with 50 DEG C with
Upper high temperature inhibits 30min, then enters municipal sewage through the second intake pump (45) and the second inlet valve (46), starts to be aerated extensive
It is multiple, continuous aeration 10 days, pH curve during which is monitored according to Water Test Kits (24), when there is the i.e. ammonia valley point of inflection point in pH curve,
Just stop aeration, reenter municipal sewage and carry out aeration recovery, by 50% mud mixture of reactor through the second dirt after 10 days
Dredge pump (27) and the second sludge valve (26) enter municipal sewage short-range nitrifying device (30), while municipal sewage short distance nitration fills
(30) are set to fill through third sludge pump (41) and third sludge valve (42) 50% mud mixture of reflux to municipal sewage complete nitrification
Set (4)；
Single cycle end of run repeats above step operation.
After short distance nitration starts successfully, nitrifying process is steadily in the long term in ammoxidation stage, average nitrite accumulation rate
(NO2 --N/(NO2 --N+NO3 -- N)] * 100%) be 84.32%, and can guarantee aeration after ammonia nitrogen concentration drop to 1mg/L with
Under；
The above content is the further descriptions for combining specific test to implement to be the present invention, are convenient for people from field
Member better understands and with the application of the invention, must not believe that specific implementation of the invention is only limitted to these and has been described certainly, therefore
Field technical staff to the simple modifications done of the present invention all within protection scope of the present invention.
Table 1
Claims (2)
1. a kind of starting simultaneously stablizes the device for maintaining municipal sewage short distance nitration, it is characterised in that：Including municipal sewage raw water box
(1), short-range nitrifying device, complete nitrification device, sludge treatment equipment and sludge refluxing apparatus；
Short-range nitrifying device includes third aeration pump (28), third flowmeter (29), third aeration head (31), third blender
(32), the 3rd pH pops one's head in (33), and the 3rd DO pops one's head in (34), third Water Test Kits (35), third sampling valve (36), third draining
Valve (39) and third draining pump (40) device；
Complete nitrification device includes the first aeration pump (7), first flowmeter (6), the first aeration head (5), the first blender (8),
First pH pops one's head in (9), and the first DO pops one's head in (10), the first Water Test Kits (12), the first sampling valve (11), the first drain valve (13)
With the first draining pump (14) device；
Wherein sludge treatment equipment includes the second aeration pump (20), second flowmeter (19), the second aeration head (18), the second stirring
Device (21), the 2nd pH pop one's head in (22), and the 2nd DO pops one's head in (23), the second Water Test Kits (24), the second sampling valve (25), second row
Water valve (44) and the second draining pump (43) device；
Wherein sludge refluxing apparatus includes return valve and reflux pump；
Short-range nitrifying device is connected by sludge refluxing apparatus between complete nitrification device and sludge treatment equipment.
2. the method for application device as described in claim 1, which is characterized in that operation operating procedure is as follows：
1) sewage through third intake pump (37) and third inlet valve (38) enters short-range nitrifying device in municipal sewage raw water box (1)
(30), the monocycle method of operation is as follows after water inlet, and intake 20min, anoxia stirring 90min are aerated 120min, precipitates 30min, row
Water 20min, leave unused 200min, 3 cycles/days, and temperature is room temperature during operation, and DO is greater than 3mg/L, and pH changes with influent quality,
Sludge concentration maintains 3500 ± 200mg/L；
2) sewage through the first intake pump (2) and the first inlet valve (3) enters complete nitrification device in municipal sewage raw water box (1)
(4), the monocycle method of operation is as follows after water inlet, and intake 20min, anoxia stirring 90min are aerated 120min, precipitates 30min, row
Water 20min, leave unused 200min, 3 cycles/days, and temperature is room temperature during operation, and DO is greater than 3mg/L, and pH changes with influent quality,
Sludge concentration maintains 4000 ± 200mg/L；
3) 50% mud mixture of complete nitrification is filled through the first sludge pump (15) and the first sludge valve (16) into Treatment of Sludge
Postpone, 50 DEG C or more high temperature of activated sludge inhibited into 30min, then through the second intake pump (45) and the second inlet valve (46) into
Enter municipal sewage, start aeration and restore, during which continuous aeration monitors pH curve according to Water Test Kits (24), when pH curve goes out
When existing inflection point, that is, ammonia valley point, just stops aeration, reenter municipal sewage and carry out aeration recovery, by 50% mud of reactor after 10 days
Aqueous mixtures enter short-range nitrifying device (30) through the second sludge pump (27) and the second sludge valve (26), while short distance nitration fills
It sets (30) and flows back 50% mud mixture to complete nitrification device (4) through third sludge pump (41) and third sludge valve (42)；
4) single cycle end of run repeats above step operation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810739334.9A CN108862585B (en) | 2018-07-06 | 2018-07-06 | Device and method for starting and stably maintaining shortcut nitrification of municipal sewage |
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| CN201810739334.9A CN108862585B (en) | 2018-07-06 | 2018-07-06 | Device and method for starting and stably maintaining shortcut nitrification of municipal sewage |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109607791A (en) * | 2019-01-15 | 2019-04-12 | 青岛大学 | The control system of municipal sewage two-stage SPNA technique deep denitrification |
| CN110002691A (en) * | 2019-05-10 | 2019-07-12 | 北京工业大学 | UCT, which is improved, by intermittent aerating couples the apparatus and method that autotrophic denitrification realizes the dephosphorization of low carbon source urban sewage advanced nitrogen |
| CN110759466A (en) * | 2019-11-21 | 2020-02-07 | 北京工业大学 | Device and method for rapidly starting and stably maintaining shortcut nitrification of municipal sewage based on triclosan |
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| US20040244715A1 (en) * | 2003-04-03 | 2004-12-09 | Schreier Harold J. | Aquaculture nitrogen waste removal |
| CN101948176A (en) * | 2010-09-29 | 2011-01-19 | 重庆大学 | Method for realizing short-cut nitrification and denitrification through online monitoring and controlling SBR (Selective Beacon Radar) aeration duration on basis of HPR (High Performance Routing) |
| CN103588352A (en) * | 2013-09-03 | 2014-02-19 | 北京工业大学 | Two-stage backflow simultaneous nitrogen and phosphorus removal device and technology for denitrification phosphorus removal, shortcut nitrification and anaerobic ammonia oxidation of municipal sewage |
| KR20160030042A (en) * | 2014-09-08 | 2016-03-16 | 가부시키가이샤 히타치세이사쿠쇼 | Wastewater treatment apparatus and wastewater treatment method |
| CN106865768A (en) * | 2017-03-22 | 2017-06-20 | 北京工业大学 | The short-cut nitrification and denitrification dephosphorization of SBR parts couples the apparatus and method of Anammox |
| CN106865773A (en) * | 2017-04-07 | 2017-06-20 | 北京工业大学 | Add the apparatus and method that azanol realizes part short distance nitration Anammox |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20040244715A1 (en) * | 2003-04-03 | 2004-12-09 | Schreier Harold J. | Aquaculture nitrogen waste removal |
| CN101948176A (en) * | 2010-09-29 | 2011-01-19 | 重庆大学 | Method for realizing short-cut nitrification and denitrification through online monitoring and controlling SBR (Selective Beacon Radar) aeration duration on basis of HPR (High Performance Routing) |
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| CN106865773A (en) * | 2017-04-07 | 2017-06-20 | 北京工业大学 | Add the apparatus and method that azanol realizes part short distance nitration Anammox |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109607791A (en) * | 2019-01-15 | 2019-04-12 | 青岛大学 | The control system of municipal sewage two-stage SPNA technique deep denitrification |
| CN109607791B (en) * | 2019-01-15 | 2021-12-28 | 青岛大学 | Control system for deep denitrification of municipal sewage by two-stage SPNA (shortest Path bridging) process |
| CN110002691A (en) * | 2019-05-10 | 2019-07-12 | 北京工业大学 | UCT, which is improved, by intermittent aerating couples the apparatus and method that autotrophic denitrification realizes the dephosphorization of low carbon source urban sewage advanced nitrogen |
| CN110759466A (en) * | 2019-11-21 | 2020-02-07 | 北京工业大学 | Device and method for rapidly starting and stably maintaining shortcut nitrification of municipal sewage based on triclosan |
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