CN106145337B - A kind of improvement DEAMOX continuous flow process processing higher concentration NO3-- the apparatus and method of N waste water and municipal sewage - Google Patents
A kind of improvement DEAMOX continuous flow process processing higher concentration NO3-- the apparatus and method of N waste water and municipal sewage Download PDFInfo
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- CN106145337B CN106145337B CN201610539159.XA CN201610539159A CN106145337B CN 106145337 B CN106145337 B CN 106145337B CN 201610539159 A CN201610539159 A CN 201610539159A CN 106145337 B CN106145337 B CN 106145337B
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- deamox
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- waste water
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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
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/15—N03-N
Abstract
The invention discloses a kind of improvement DEAMOX continuous flow process to handle higher concentration NO3 ‑The apparatus and method of-N waste water and municipal sewage.The good granular sludge by shortcut denitrification of settling property and anaerobic ammonium oxidation granular sludge are added to reactor, anoxia stirring is added in continuous flow reactor and strengthens substrate mass transfer, solves the problems, such as that Traditional continuous flow reactor channel and dead zone phenomenon cause denitrification effect poor；Medium or short range denitrifying bacterium of the present invention is using organic matter in municipal sewage and outer carbon source by NO3 ‑- N is converted into NO2 ‑- N, then pass through Anammox reaction and NH in municipal sewage4 +The synchronous removal of-N passes through high NO in optimization water inlet3 ‑The flow of-N waste water, municipal sewage and carbon source realizes the efficient removal of nitrogen.Nitrogen removal rate and nitrogen elimination capacity of the present invention is high, structure is simple, is easy to optimal control, can effectively solve high NO3 ‑The intractable problem of-N waste water, and realize the purpose of synchronization process municipal sewage.
Description
Technical field
The present invention relates to a kind of improvement DEAMOX continuous flow process to handle higher concentration NO3 -The technique of-N waste water and municipal sewage
Technology belongs to technical field of biological sewage treatment.
Background technique
In industrial production, a large amount of higher concentration NO is often generated3 -- N waste water, this kind of waste water must carry out stringent place
Reason could discharge, and it is exceeded otherwise to will cause water body nitrogen concentration, cause eutrophication problem.Traditional passes through physics, chemical method
It handles this kind of waste water and needs a large amount of adding of agent, operating cost is high, and is also needed using complete denitrification biologic treating technique
A large amount of external carbon addition is wanted, and generates a large amount of activated sludge, further increases the operating cost of sewage treatment plant.
In recent years, it is widely used in Anammox (Anammox) technology of high ammonia-nitrogen wastewater processing in anoxia condition
Under can convert nitrogen for ammonia nitrogen and nitrite nitrogen, have nitrogen elimination capacity it is high, without aeration and organic carbon source and sludge
The advantages that low yield is energy-efficient denitrogenation technology most efficient so far.In addition, short-cut denitrification can be by the reduction of nitrate
Journey proceeds to using nitrite nitrogen as final product, has that N transformes speed is big, outer carbon source compared to traditional complete denitrification
The advantages such as demand is few and sludge yield is low, therefore for industrial higher concentration NO3 -- N waste water mixes it with the waste water containing ammonia nitrogen
It closes, Anammox technology can be coupled by short-cut denitrification and be handled, so as to substantially reduce the processing of such waste water
Expense and energy consumption.
Municipal sewage contains a large amount of ammonia nitrogen, and contains part biodegradable organic, can be used as the anti-nitre of short distance
Electron donor during change is utilized by denitrifying bacterium.Therefore, by higher concentration NO3 -- N waste water is mixed with municipal sewage, can be into one
Step solves the problems, such as denitrification process external carbon addition amount and adds costly, and simultaneous reactions device continuous operation mode can be improved
Load meets and handles the biggish practical application request of water in the unit time, realizes effective denitrogenation to municipal sewage and up to standard
Discharge.And usually since channel and dead zone phenomenon cause denitrification effect poor in Traditional continuous flow reactor, running optimizatin problem
Still have to be solved.
Summary of the invention
In order to solve the above technical problems, the invention proposes a kind of improvement DEAMOX continuous flow process to handle high concentration
NO3 -The good granular sludge by shortcut denitrification of settling property is specifically inoculated with by the apparatus and method of-N waste water and municipal sewage
To reactor, with high NO3 -- N waste water and municipal sewage domestication culture granular sludge by shortcut denitrification, are inoculated with high activity after stablizing
Anaerobic ammonium oxidation granular sludge, pass through optimization water inlet in high NO3 -The flow of-N waste water, municipal sewage and carbon source realizes nitrogen
Efficient removal, anoxia stirring is added in continuous flow reactor and strengthens substrate mass transfer, solve Traditional continuous flow reactor channel and
Dead zone phenomenon leads to the problem of denitrification effect difference.
The purpose of the present invention is achieved through the following technical solutions:
A kind of improvement DEAMOX continuous flow process processing higher concentration NO3 -The device of-N waste water and municipal sewage, feature exist
In, including higher concentration NO3 -- N waste water reserve tank 1, municipal sewage reserve tank 2, carbon source reserve tank 3, DEAMOX reactor 4 and heavy
Shallow lake pond 5；DEAMOX reactor 4 is equipped with the first water inlet 4.1, the second water inlet 4.2, blow-down pipe 4.3, sample tap 4.4, baffle
4.5, blender 4.6 and water outlet 4.7；Sedimentation basin 5 is equipped with blow-down pipe 5.1 and water outlet 5.2；
4 first water inlet 4.1 of DEAMOX reactor passes through the first peristaltic pump 1.1 and higher concentration NO3 -- N waste water reserve tank 1
It is connected, is connected by third peristaltic pump 3.1 with carbon source reserve tank 3；4 second water inlet 4.2 of DEAMOX reactor is compacted by second
Dynamic pump 2.1 is connected with municipal sewage reserve tank 2；Short-cut denitrification couples 4 water outlet 4.7 of anaerobic ammonia oxidation reactor and sedimentation basin
5 are connected；
The improvement DEAMOX continuous flow process handles higher concentration NO3 -The device of-N waste water and municipal sewage, feature
It is that DEAMOX reactor ratio of height to diameter is greater than 8.0.
A kind of improvement DEAMOX continuous flow process processing higher concentration NO3 -The method of-N waste water and municipal sewage, feature exist
In, including following procedure:
1) inoculation granular sludge by shortcut denitrification controls reaction process mixed liquor sludge concentration to DEAMOX reactor
MLSS is 1.5~3.5g/L；
2) the first peristaltic pump, the second peristaltic pump and third peristaltic pump are opened, by higher concentration NO3 -- N waste water (NO3 -- N is greater than
500mg/L), municipal sewage and carbon source are continuously pumped into DEAMOX reactor, and control reactor is discharged NO2 -- N and NH4 +The matter of-N
Measuring concentration ratio is 1~1.3, opens simultaneously blender；
3) after step 2) stable operation 3 days, anaerobic ammonium oxidation granular sludge is added to DEAMOX reactor, adjusting is passed through
Higher concentration NO3 -- N waste water, municipal sewage and carbon source enter the flow of reactor, control water outlet NH4 +- N mass concentration is less than 5mg/
L, TN mass concentration are less than 15mg/L；
4) water outlet of DEAMOX reactor flows into sedimentation basin, and sedimentation basin is discharged direct emission；
NO in the granular sludge by shortcut denitrification reaction process being inoculated in step 1)3 -- N is converted into NO2 -The conversion ratio ratio of-N
Greater than 75%, sludge volume index SVI is less than 80mL/gMLSS；
Blender revolving speed control per minute is 40~120 turns in step 2) reaction process；
NO is discharged in step 2)3 -- N mass concentration be greater than 5mg/L when, by improve third wriggling revolution speed increase carbon source into
Enter the flow of reactor, or reduces high NO by reducing the first peristaltic pump and the second wriggling revolution speed3 -- N waste water and municipal sewage
Into the flow of DEAMOX reactor；
The nitrogen removal rate of the anaerobic ammonium oxidation granular sludge added in step 3) is greater than 0.1gN/gVSS/h, sludge volume
Index SVI is less than 50mL/gMLSS, adds 1~4 times that sludge quality is granular sludge by shortcut denitrification.
Improvement DEAMOX continuous flow process provided by the invention handles higher concentration NO3 -The device of-N waste water and municipal sewage with
Method, has the advantage that and feature:
1) higher concentration NO is realized3 -The cost-effective processing of-N waste water, compares conventional denitrification, nitrogen removal rate is high,
Outer carbon source demand amount and sludge yield are low；
2) processing for realizing municipal sewage is synchronized, without aerobic aeration in traditional nitrification/denitrification process and subsequent
External carbon addition substantially reduces processing cost；
3) by the way that blender is arranged in reactor bottom, insufficient contact between matrix and sludge is avoided, is effectively solved
The generation in dead zone and channeling；
4) by setting sedimentation basin, it can effectively solve reactor and be discharged the suspended solid being mingled with, and can prevent anti-
The anaerobic ammonium oxidation granular sludge for answering device sludge loss and recycling to be lost；
5) short-cut denitrification and Anammox reaction N transformes speed are fast, and nitric efficiency is high, and process unit knot
Structure is simple, is easy to optimal control.
Detailed description of the invention
Fig. 1 is a kind of improvement DEAMOX continuous flow process processing higher concentration NO3 -The device figure of-N waste water and municipal sewage.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, continuous flow reinforcing mass transfer short-cut denitrification coupling anaerobic ammonia oxidation process high efficiency synchronous processing is highly concentrated
Spend NO3 -The apparatus and method of-N waste water and municipal sewage, including higher concentration NO3 -- N waste water reserve tank 1, municipal sewage reserve tank
2, carbon source reserve tank 3, DEAMOX reactor 4 and sedimentation basin 5；DEAMOX reactor 4 is intake equipped with the first water inlet 4.1, second
Mouth 4.2, blow-down pipe 4.3, sample tap 4.4, baffle 4.5, blender 4.6 and water outlet 4.7；Sedimentation basin 5 is equipped with 5.1 He of blow-down pipe
Water outlet 5.2；
4 first water inlet 4.1 of DEAMOX reactor passes through the first peristaltic pump 1.1 and higher concentration NO3 -- N waste water reserve tank 1
It is connected, is connected by third peristaltic pump 3.1 with carbon source reserve tank 3；4 second water inlet 4.2 of DEAMOX reactor is compacted by second
Dynamic pump 2.1 is connected with municipal sewage reserve tank 2；Short-cut denitrification couples 4 water outlet 4.7 of anaerobic ammonia oxidation reactor and sedimentation basin
5 are connected.
Specific test water in the present embodiment are as follows: simulation higher concentration NO3 -- N waste water (NO3 -- N=1000mg/L) and it is practical
Sanitary sewage (COD=146.5~246.4mg/L, NH4 +- N=52.5~72.3mg/L), it tests organic in outer carbon source reserve tank
Object is sodium acetate, and test short-cut denitrification coupling anaerobic ammonia oxidation reactor dischargeable capacity is that (internal diameter 6cm is highly 4L
100cm)。
Specific operation process is as follows:
1) it is inoculated with NO3 -- N is converted into NO2 -The conversion ratio of-N is 89%, and sludge volume index SVI is 52.4mL/gMLSS
Granular sludge by shortcut denitrification into reactor, reaction process mixed liquor sludge concentration MLSS be 1.8g/L；
2) the first peristaltic pump, the second peristaltic pump and third peristaltic pump are opened, by high NO3 -- N waste water, municipal sewage and outer carbon
Source is continuously pumped into DEAMOX reactor with the flow of 0.2L/h, 2.5L/h and 0.36g COD/h, opens simultaneously blender, with
The low speed strengthening reactor bottom substrates of 70 turns/min are transmitted, and NO is discharged2 -- N and NH4 +The mass concentration ratio of-N is 1~1.3；
3) after step 2) is run 7 days, reactor is discharged NO2 -- N and NH4 +The mass concentration ratio of-N is 1.14 or so, is stablized
After operation 3 days, taking activity is that the anaerobic ammonium oxidation granular sludge quality that 0.18g N/gVSS/h, SVI are 36.8mL/gMLSS is
1.5g is added to DEAMOX reactor and is discharged NH after operation 4 days4 +- N and TN mass concentration are less than 5mg/L and 15mg/L；
4) water outlet of DEAMOX reactor flows into sedimentation basin, and sedimentation basin is discharged direct emission.
Long run test the result shows that:
In the case where temperature is 23.4~28.5 DEG C, stable operation 4 months the result shows that: anaerobic ammonium oxidation granular in reaction process
Sludge stream vector is few, can be always maintained at higher activity, is mainly short-cut denitrification sludge in sedimentation basin, is arranged once a week
It removes, sedimentation basin water outlet can be kept limpid.System NO3 -- N and NH4 +- N average removal rate is respectively greater than 99.0% and 91.7%, out
Water NO3 --N、NH4 +- N and TN mass concentration are respectively smaller than 10mg/L, 5mg/L and 18mg/L.
Claims (1)
1. a kind of improvement DEAMOX continuous flow process handles higher concentration NO3 -The method of-N waste water and municipal sewage, using following dress
It sets, which includes higher concentration NO3 -- N waste water reserve tank (1), municipal sewage reserve tank (2), carbon source reserve tank (3), DEAMOX
Reactor (4) and sedimentation basin (5)；DEAMOX reactor (4) is equipped with the first water inlet (4.1), the second water inlet (4.2), emptying
Manage (4.3), sample tap (4.4), baffle (4.5), blender (4.6) and water outlet (4.7)；Sedimentation basin (5) is equipped with blow-down pipe
(5.1) and water outlet (5.2)；
(4) first water inlet (4.1) of DEAMOX reactor passes through the first peristaltic pump (1.1) and higher concentration NO3 -- N waste water reserve tank
(1) it is connected, is connected by third peristaltic pump (3.1) with carbon source reserve tank (3)；(4) second water inlet (4.2) of DEAMOX reactor
It is connected by the second peristaltic pump (2.1) with municipal sewage reserve tank (2)；Short-cut denitrification couples anaerobic ammonia oxidation reactor (4)
Water outlet (4.7) is connected with sedimentation basin (5)；
DEAMOX reactor ratio of height to diameter is greater than 8.0；
It is characterised in that it includes following procedure:
1) to DEAMOX reactor, control reaction process mixed liquor sludge concentration MLSS is inoculation granular sludge by shortcut denitrification
1.5~3.5g/L；
2) the first peristaltic pump, the second peristaltic pump and third peristaltic pump are opened, by NO3 -- N is greater than waste water, the municipal sewage of 500mg/L
It is continuously pumped into DEAMOX reactor with carbon source, control reactor is discharged NO2 -- N and NH4 +The mass concentration ratio of-N is 1.0~1.3,
Open simultaneously blender；
3) after step 2) stable operation 3 days, anaerobic ammonium oxidation granular sludge is added to DEAMOX reactor, it is highly concentrated by adjusting
Spend NO3 -- N waste water, municipal sewage and carbon source enter the flow of reactor, control water outlet NH4 +- N mass concentration is less than 5mg/L, TN
Mass concentration is less than 15mg/L；
4) water outlet of DEAMOX reactor flows into sedimentation basin, and sedimentation basin is discharged direct emission；
NO in the granular sludge by shortcut denitrification reaction process being inoculated in step 1)3 -- N is converted into NO2 -The conversion ratio ratio of-N is greater than
75%, sludge volume index SVI are less than 80mL/gMLSS；
Blender revolving speed control per minute is 40~120 turns in step 2) reaction process；
NO is discharged in step 2)3 -When-N mass concentration is greater than 5mg/L, increase carbon source into instead by improving third wriggling revolution speed
The flow of device is answered, or reduces high NO by reducing the first peristaltic pump and the second wriggling revolution speed3 -- N waste water and municipal sewage enter
The flow of DEAMOX reactor；
The nitrogen removal rate of the anaerobic ammonium oxidation granular sludge added in step 3) is greater than 0.1gN/gVSS/h, sludge volume index
SVI is less than 50mL/gMLSS, adds 1~4 times that sludge quality is granular sludge by shortcut denitrification.
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| CN109160670B (en) * | 2018-08-21 | 2021-04-06 | 海南大学 | Denitrification method of municipal sewage denitrification filter based on short-cut denitrification and anaerobic ammonia oxidation |
| CN110316824B (en) * | 2019-08-07 | 2022-03-25 | 大连海事大学 | Cooperative treatment device and cooperative treatment method for ship waste gas washing waste liquid and ship domestic sewage |
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| CN103288211A (en) * | 2013-05-12 | 2013-09-11 | 北京工业大学 | Device and method for treating low-C/N (carbon/nitrogen) ratio urban sewage by an anoxic/aerobic SBR-DEAMOX (denitrifying ammonium oxidation) denitrification process |
| CN104276656A (en) * | 2014-10-12 | 2015-01-14 | 北京工业大学 | Method for treating high-concentration nitrate waste water and municipal sewage through denitrification anaerobic ammonium oxidation SBR |
| CN104671406A (en) * | 2015-02-15 | 2015-06-03 | 清华大学 | Method for cultivating gas self-circulation enhanced short-distance denitrification granular sludge |
| CN105174448A (en) * | 2015-10-13 | 2015-12-23 | 沈阳建筑大学 | Anaerobic ammonia oxidation and denitrification coupling device and controlled operation method thereof |
| CN105461178A (en) * | 2016-01-09 | 2016-04-06 | 北京工业大学 | System and method for treating municipal sewage through short-cut denitrification-anaerobic ammonia oxidation after short-cut nitrification-anaerobic ammonia oxidation |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103288211A (en) * | 2013-05-12 | 2013-09-11 | 北京工业大学 | Device and method for treating low-C/N (carbon/nitrogen) ratio urban sewage by an anoxic/aerobic SBR-DEAMOX (denitrifying ammonium oxidation) denitrification process |
| CN104276656A (en) * | 2014-10-12 | 2015-01-14 | 北京工业大学 | Method for treating high-concentration nitrate waste water and municipal sewage through denitrification anaerobic ammonium oxidation SBR |
| CN104671406A (en) * | 2015-02-15 | 2015-06-03 | 清华大学 | Method for cultivating gas self-circulation enhanced short-distance denitrification granular sludge |
| CN105174448A (en) * | 2015-10-13 | 2015-12-23 | 沈阳建筑大学 | Anaerobic ammonia oxidation and denitrification coupling device and controlled operation method thereof |
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