CN106145337A - A kind of improvement DEAMOX continuous flow process processes higher concentration NO3n waste water and the apparatus and method of municipal sewage - Google Patents

A kind of improvement DEAMOX continuous flow process processes higher concentration NO3n waste water and the apparatus and method of municipal sewage Download PDF

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CN106145337A
CN106145337A CN201610539159.XA CN201610539159A CN106145337A CN 106145337 A CN106145337 A CN 106145337A CN 201610539159 A CN201610539159 A CN 201610539159A CN 106145337 A CN106145337 A CN 106145337A
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reactor
deamox
municipal sewage
waste water
peristaltic pump
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CN106145337B (en
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彭永臻
杜睿
操沈彬
牛萌
王淑莹
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Beijing University of Technology
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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
    • 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
    • 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

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  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

The invention discloses a kind of improvement DEAMOX continuous flow process and process higher concentration NO3 ‑N waste water and the apparatus and method of municipal sewage.Granular sludge by shortcut denitrification good for settling property and anaerobic ammonium oxidation granular sludge are added to reactor, continuous flow reactor is set up anoxia stirring strengthening substrate mass transfer, the problem that solution Traditional continuous flow reactor channel and dead band phenomenon cause denitrification effect difference；Medium or short range denitrifying bacterium of the present invention utilizes in municipal sewage Organic substance and outer carbon source by NO3 ‑N is converted into NO2 ‑N, then by Anammox reaction and NH in municipal sewage4 +N synchronizes to remove, high NO in being intake by optimization3 ‑The flow of N waste water, municipal sewage and carbon source, it is achieved the efficient removal of nitrogen.Nitrogen clearance of the present invention and nitrogen elimination capacity height, simple in construction, it is prone 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

A kind of improvement DEAMOX continuous flow process processes higher concentration NO3--N waste water and city are dirty The apparatus and method of water
Technical field
The present invention relates to a kind of improvement DEAMOX continuous flow process and process higher concentration NO3 --N waste water and the technique of municipal sewage Technology, belongs to technical field of biological sewage treatment.
Background technology
In commercial production, often produce substantial amounts of higher concentration NO3 --N waste water, this kind of waste water must carry out strict place Reason could be discharged, and water body nitrogen concentration otherwise can be caused to exceed standard, cause eutrophication problem.Traditional by physics, chemical method Processing this kind of waste water and need substantial amounts of adding of agent, operating cost is high, and uses complete denitrification biologic treating technique also to need Want substantial amounts of external carbon addition, and produce substantial amounts of activated sludge, further increase the operating cost of sewage treatment plant.
In recent years, Anammox (Anammox) technology of high ammonia-nitrogen wastewater process it is widely used at anoxia condition Under ammonia nitrogen and nitrite nitrogen can be converted into nitrogen, there is nitrogen elimination capacity high, without aeration and organic carbon source and mud The advantages such as productivity is low, are the most energy-efficient denitrogenation technology.It addition, short-cut denitrification can be by the reduction of nitrate Journey proceeds to nitrite nitrogen as end-product, and it is compared traditional complete denitrification and has N transformes speed carbon source big, outer The advantage 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 Close, can be processed, it is thus possible to be substantially reduced the process of this type of waste water by short-cut denitrification coupling Anammox technology Expense and energy consumption.
Municipal sewage contains substantial amounts of ammonia nitrogen, and containing part biodegradable organic, it can be as the anti-nitre of short distance Electron donor during change is utilized by denitrifying bacterium.Therefore, by higher concentration NO3 --N waste water mixes with municipal sewage, can enter one Step solves denitrification process external carbon addition amount and adds problem costly, and simultaneous reactions device continuous operation mode can improve Load, meets and processes the practical application request that the water yield is bigger in the unit interval, it is achieved to effective denitrogenation of municipal sewage and up to standard Discharge.And Traditional continuous flow reactor usually causes denitrification effect poor due to channel and dead band phenomenon, its running optimizatin problem Still have to be solved.
Summary of the invention
For solving above-mentioned technical problem, the present invention proposes a kind of improvement DEAMOX continuous flow process and processes higher concentration NO3 -- N waste water and the apparatus and method of municipal sewage, be specifically seeded to granular sludge by shortcut denitrification good for settling property instead In answering device, use high NO3 -Granular sludge by shortcut denitrification is cultivated in-N waste water and municipal sewage domestication, stable after inoculate and highly active detest Anaerobic ammonium oxidation granule sludge, high NO in being intake by optimization3 -The flow of-N waste water, municipal sewage and carbon source, it is achieved the height of nitrogen Effect is removed, and sets up anoxia stirring strengthening substrate mass transfer, solve Traditional continuous flow reactor channel and dead band in continuous flow reactor The problem that phenomenon causes denitrification effect difference.
It is an object of the invention to be achieved through the following technical solutions:
A kind of improvement DEAMOX continuous flow process processes higher concentration NO3 --N waste water and the device of municipal sewage, its feature exists 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 precipitation Pond 5；DEAMOX reactor 4 be provided with first water inlet the 4.1, second water inlet 4.2, blow-down pipe 4.3, sample tap 4.4, baffle plate 4.5, Agitator 4.6 and outlet 4.7；Sedimentation tank 5 is provided with blow-down pipe 5.1 and outlet 5.2；
DEAMOX reactor 4 first water inlet 4.1 is by the first peristaltic pump 1.1 and higher concentration NO3 --N waste water reserve tank 1 phase Even, it is connected with carbon source reserve tank 3 by the 3rd peristaltic pump 3.1；DEAMOX reactor 4 second water inlet 4.2 is by the second wriggling Pump 2.1 is connected with municipal sewage reserve tank 2；Short-cut denitrification coupling anaerobic ammonia oxidation reactor 4 outlet 4.7 and sedimentation tank 5 It is connected；
Described improvement DEAMOX continuous flow process processes higher concentration NO3 --N waste water and the device of municipal sewage, its feature It is that DEAMOX reactor ratio of height to diameter is more than 8.0.
A kind of improvement DEAMOX continuous flow process processes higher concentration NO3 --N waste water and the method for municipal sewage, its feature exists In, including procedure below:
1) inoculation granular sludge by shortcut denitrification is to DEAMOX reactor, controls course of reaction mixed liquor sludge concentration MLSS It is 1.5～3.5g/L；
2) the first peristaltic pump, the second peristaltic pump and the 3rd peristaltic pump are opened, by higher concentration NO3 --N waste water (NO3 --N is more than 500mg/L), municipal sewage and carbon source are continuously pumped into DEAMOX reactor, control reactor water outlet NO2 --N and NH4 +The quality of-N Concentration ratio is 1～1.3, opens agitator simultaneously；
3) step 2) after stable operation 3 days, anaerobic ammonium oxidation granular sludge is added to DEAMOX reactor, by regulation 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 is less than 15mg/L；
4) water outlet of DEAMOX reactor flows into sedimentation tank, and sedimentation tank water outlet is directly discharged；
Step 1) in inoculation granular sludge by shortcut denitrification course of reaction in NO3 --N is converted into NO2 -The conversion ratio ratio of-N More than 75%, sludge volume index SVI is less than 80mL/gMLSS；
Step 2) agitator rotating speed per minute controls in course of reaction is 40～120 turns；
Step 2) in water outlet NO3 -When-N mass concentration is more than 5mg/L, enter by improving the 3rd peristaltic pump rotating speed increase carbon source Enter the flow of reactor, or reduce high NO by reducing the first peristaltic pump and the second peristaltic pump rotating speed3 --N waste water and municipal sewage Enter the flow of DEAMOX reactor；
Step 3) in the nitrogen removal rate of anaerobic ammonium oxidation granular sludge that adds more than 0.1gN/gVSS/h, sludge volume Index SVI is less than 50mL/gMLSS, add that sludge quality is granular sludge by shortcut denitrification 1～4 times.
The improvement DEAMOX continuous flow process that the present invention provides processes 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 achieved3 -The cost-effective process of-N waste water, compares conventional denitrification, nitrogen removal rate is high, Outer carbon source demand amount and sludge yield are low；
2) synchronize to achieve the process of municipal sewage, it is not necessary to aerobic aeration in tradition nitrification/denitrification process and follow-up External carbon addition, is substantially reduced processing cost；
3) by arranging agitator at reactor bottom, it is to avoid between substrate and mud insufficient contact, effectively solve The generation of dead band and channeling；
4) by arranging sedimentation tank, can effectively solve the suspended solid that reactor water outlet is mingled with, and be possible to prevent anti- Answer device sludge loss and reclaim the anaerobic ammonium oxidation granular sludge run off；
5) short-cut denitrification and Anammox reaction N transformes speed are fast, and nitric efficiency is high, and process unit knot Structure is simple, it is easy to optimal control.
Accompanying drawing explanation
Fig. 1 is that a kind of improvement DEAMOX continuous flow process processes higher concentration NO3 --N waste water and the installation drawing of municipal sewage.
Detailed description of the invention
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
As it is shown in figure 1, stream strengthening mass transfer short-cut denitrification coupling anaerobic ammonia oxidation process high efficiency synchronous processes highly concentrated continuously Degree NO3 --N waste water and the apparatus and method of 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 tank 5；DEAMOX reactor 4 is provided with the first water inlet 4.1, second and intakes Mouth 4.2, blow-down pipe 4.3, sample tap 4.4, baffle plate 4.5, agitator 4.6 and outlet 4.7；Sedimentation tank 5 is provided with blow-down pipe 5.1 He Outlet 5.2；
DEAMOX reactor 4 first water inlet 4.1 is by the first peristaltic pump 1.1 and higher concentration NO3 --N waste water reserve tank 1 phase Even, it is connected with carbon source reserve tank 3 by the 3rd peristaltic pump 3.1；DEAMOX reactor 4 second water inlet 4.2 is by the second wriggling Pump 2.1 is connected with municipal sewage reserve tank 2；Short-cut denitrification coupling anaerobic ammonia oxidation reactor 4 outlet 4.7 and sedimentation tank 5 It is connected.
In the present embodiment, concrete test water is: simulation higher concentration NO3 --N waste water (NO3 --N=1000mg/L) and actual Sanitary sewage (COD=146.5～246.4mg/L, NH4 +-N=52.5～72.3mg/L), test in outer carbon source reserve tank organic Thing is sodium acetate, and test short-cut denitrification coupling anaerobic ammonia oxidation reactor dischargeable capacity is that (internal diameter is 6cm to 4L, and height is 100cm)。
Specific operation process is as follows:
1) inoculation NO3 --N is converted into NO2 -The conversion ratio of-N is 89%, and sludge volume index SVI is 52.4mL/gMLSS's Granular sludge by shortcut denitrification is in reactor, and course of reaction mixed liquor sludge concentration MLSS is 1.8g/L；
2) the first peristaltic pump, the second peristaltic pump and the 3rd peristaltic pump are opened, by high NO3 --N waste water, municipal sewage and outer carbon Source pumps into DEAMOX reactor with the flow continuous print of 0.2L/h, 2.5L/h and 0.36g COD/h, opens agitator simultaneously, with The low speed enhanced reactor bottom substrates transmission of 70 turns/min, water outlet NO2 --N and NH4 +The mass concentration ratio of-N is 1～1.3；
3) step 2) run after 7 days, reactor water outlet NO2 --N and NH4 +The mass concentration ratio of-N is about 1.14, stable After running 3 days, taking activity for the anaerobic ammonium oxidation granular sludge quality that 0.18g N/gVSS/h, SVI are 36.8mL/gMLSS is 1.5g, adds to DEAMOX reactor, after running 4 days, and water outlet NH4 +-N and TN mass concentration are less than 5mg/L and 15mg/L；
4) water outlet of DEAMOX reactor flows into sedimentation tank, and sedimentation tank water outlet is directly discharged.
Long run test result shows:
At temperature is 23.4～28.5 DEG C, 4 months results of stable operation show: anaerobic ammonium oxidation granular in course of reaction Sludge stream vector is few, can be always maintained at higher activity, is mainly short-cut denitrification mud, is arranged once in a week in sedimentation tank Remove, sedimentation tank water outlet can be kept limpid.System NO3 --N and NH4 +-N average removal rate is respectively greater than 99.0% and 91.7%, goes out Water NO3 --N、NH4 +-N and TN mass concentration are respectively smaller than 10mg/L, 5mg/L and 18mg/L.

Claims (2)

1. an improvement DEAMOX continuous flow process processes higher concentration NO3 --N waste water and the device of municipal sewage, it is characterised in that Including higher concentration NO3 --N waste water reserve tank (1), municipal sewage reserve tank (2), carbon source reserve tank (3), DEAMOX reactor (4) With sedimentation tank (5)；DEAMOX reactor (4) is provided with the first water inlet (4.1), the second water inlet (4.2), blow-down pipe (4.3), takes Sample mouth (4.4), baffle plate (4.5), agitator (4.6) and outlet (4.7)；Sedimentation tank (5) is provided with blow-down pipe (5.1) and outlet (5.2)；
DEAMOX reactor (4) first water inlet (4.1) passes through the first peristaltic pump (1.1) and higher concentration NO3 --N waste water reserve tank (1) it is connected, is connected with carbon source reserve tank (3) by the 3rd peristaltic pump (3.1)；DEAMOX reactor (4) second water inlet (4.2) It is connected with municipal sewage reserve tank (2) by the second peristaltic pump (2.1)；Short-cut denitrification coupling anaerobic ammonia oxidation reactor (4) Outlet (4.7) is connected with sedimentation tank (5)；
DEAMOX reactor ratio of height to diameter is more than 8.0.
2. the method applying device as claimed in claim 1, it is characterised in that include procedure below:
1) inoculation granular sludge by shortcut denitrification is to DEAMOX reactor, controls course of reaction mixed liquor sludge concentration MLSS and is 1.5～3.5g/L；
2) the first peristaltic pump, the second peristaltic pump and the 3rd peristaltic pump are opened, by NO3 --N is more than the waste water of 500mg/L, municipal sewage It is continuously pumped into DEAMOX reactor with carbon source, controls reactor water outlet NO2 --N and NH4 +The mass concentration ratio of-N is 1.0～1.3, Open agitator simultaneously；
3) step 2) after stable operation 3 days, anaerobic ammonium oxidation granular sludge is added to DEAMOX reactor, highly concentrated by regulation Degree 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 tank, and sedimentation tank water outlet is directly discharged；
Step 1) in inoculation granular sludge by shortcut denitrification course of reaction in NO3 --N is converted into NO2 -The conversion ratio ratio of-N is more than 75%, sludge volume index SVI are less than 80mL/gMLSS；
Step 2) agitator rotating speed per minute controls in course of reaction is 40～120 turns；
Step 2) in water outlet NO3 -When-N mass concentration is more than 5mg/L, increase carbon source entrance instead by improving the 3rd peristaltic pump rotating speed Answer the flow of device, or reduce high NO by reducing the first peristaltic pump and the second peristaltic pump rotating speed3 --N waste water and municipal sewage enter The flow of DEAMOX reactor；
Step 3) in the nitrogen removal rate of anaerobic ammonium oxidation granular sludge that adds more than 0.1gN/gVSS/h, sludge volume index SVI is less than 50mL/gMLSS, add that sludge quality is granular sludge by shortcut denitrification 1～4 times.
CN201610539159.XA 2016-07-10 2016-07-10 A kind of improvement DEAMOX continuous flow process processing higher concentration NO3-- the apparatus and method of N waste water and municipal sewage Active CN106145337B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109160670A (en) * 2018-08-21 2019-01-08 海南大学 It is a kind of based on short-cut denitrification+Anammox municipal sewage denitrification filter pool denitrogenation method
CN110316824A (en) * 2019-08-07 2019-10-11 大连海事大学 A kind of marine exhaust scrub raffinate cooperates with processing unit and cooperative processing method with Sewage from Ships

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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

Patent Citations (5)

* Cited by examiner, † Cited by third party
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
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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109160670A (en) * 2018-08-21 2019-01-08 海南大学 It is a kind of based on short-cut denitrification+Anammox municipal sewage denitrification filter pool denitrogenation method
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
CN110316824A (en) * 2019-08-07 2019-10-11 大连海事大学 A kind of marine exhaust scrub raffinate cooperates with processing unit and cooperative processing method with Sewage from Ships

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