CN105130118B - Partial-nitrification-and-anaerobic-ammonia-oxidation-combined denitrification method and device for synchronously treating urban sewage and mature landfill leachate - Google Patents
Partial-nitrification-and-anaerobic-ammonia-oxidation-combined denitrification method and device for synchronously treating urban sewage and mature landfill leachate Download PDFInfo
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Abstract
The invention discloses a partial-nitrification-and-anaerobic-ammonia-oxidation-combined denitrification method and device for synchronously treating urban sewage and mature landfill leachate. The device comprises a raw urban sewage tank, a raw mature landfill leachate tank, a middle water tank, a denitrification half partial nitrification reactor, a secondary sedimentation tank and a closed anaerobic-ammonia-oxidation biological trickling filter reactor. The secondary sedimentation tank is provided with a water outlet pipe, a returned sludge pipe and a left sludge pipe. The method includes the steps that the urban sewage and the mature landfill leachate are mixed in proportion to enter the middle water tank and then enter an anoxic region of the denitrification half partial nitrification reactor to be subjected to denitrification, and returned nitrate nitrogen is removed through organisms in the sewage; then the mixture enters an aerobic region to be subjected to half partial nitrification; then the mixture enters the closed anaerobic-ammonia-oxidation biological trickling filter reactor to be subjected to an anaerobic ammonia oxidation reaction. According to the method and device, combined treatment is carried out on the sewage generated by mixing the urban sewage and the mature landfill leachate through the partial-nitrification-and-anaerobic-ammonia-oxidation-combined technology, the joint denitrification aim is achieved, and the method and device are economical and easy to execute.
Description
Technical field
The present invention relates to a kind of short distance nitration joint Anammox synchronization process municipal sewage and treatment of advanced stage landfill leachate
Denitrogenation method and device, belong to low ratio of carbon to ammonium high-ammonia-nitrogen sewage biologic treating technique field.
Background technology
With China's expanding economy, the increase of urban population, China is also being continuously increased to the demand of water purification.Administer
Water pollution problems becomes China or even the global task of top priority, and city domestic sewage is an important sources of water pollution, its
After one-level physical treatment and secondary biochemical treatment, TN and TP are still higher, and being directly discharged into water body can cause water eutrophication
Change, cause the disasters such as red tide, wawter bloom.Simultaneously people's living standard is improved constantly, and the city that town dweller's life is produced is consolidated
Body garbage is also with significantly increasing.The major way for processing rubbish at present is sanitary landfills, supervenes substantial amounts of rubbish
Rubbish percolate.Used as the waste water of high ammonia nitrogen and high Organic substance, especially Denitrogenation is always the world to landfill leachate treatment problem
Field of water treatment research and the priority and difficulty for discussing.
Activated sludge process is a kind of one of most widely used denitrifying method, and it has disposal ability high, water outlet water
The characteristics of matter is good.Nitration reaction needs to carry out artificial aeration during traditional bio-denitrifying sewage, and anti-nitration reaction needs to throw
Plus carbon source, this has resulted in larger energy resource consumption.Compared with traditional bio-denitrifying sewage technique, short distance nitration and anaerobism ammonia
The novel active sludge denitrification process such as oxidation can save substantial amounts of aeration energy consumption, while Additional carbon sources need not be added, have
Preferable energy conservation and consumption reduction effects and application prospect.However, how short distance nitration and anaerobic ammonia oxidation process rationally effectively should
There is problem to be solved for being always such Process of Biological Nitrogen Removal in the denitrogenation processing of municipal sewage and percolate
One of.
The content of the invention
The purpose of the present invention is exactly the technique merging treatment municipal sewage using short distance nitration in combination with Anammox
With treatment of advanced stage landfill leachate combined sewage, make municipal sewage and treatment of advanced stage landfill leachate common in the method reached with economy and facility
The purpose of denitrogenation.
The purpose of the present invention is solved by solution below：It is provided with municipal sewage raw water box (1), late period rubbish
Percolate raw water box (2), intermediate water tank (3), the short distance nitration reactor (4) of denitrification half, second pond (5), closed anaerobism ammonia
Oxidative biological trickling filter reactor (6)；Municipal sewage raw water box (1) is provided with the first overflow pipe (1.1) and the first blow-down pipe
(1.2), treatment of advanced stage landfill leachate raw water box (2) is provided with the second overflow pipe (2.1) and the second blow-down pipe (2.2)；Municipal sewage is former
Water tank (1) and treatment of advanced stage landfill leachate raw water box (2) are intake by the first intermediate water tank intake pump (1.3), the second intermediate water tank
Pump (2.3) is connected with intermediate water tank (3) water inlet pipe；Intermediate water tank (3) is provided with the 3rd overflow pipe (3.1) and the 3rd blow-down pipe
(3.2)；Intermediate water tank is connected by intake pump (4.5) with short distance nitration reactor (4) water inlet pipe of denitrification half；Denitrification half
Short distance nitration reactor (4) is divided into 6 compartments, and according to the water (flow) direction flowing hole that is crisscross arranged up and down each compartment is connected；Compartment
It is followed successively by 2 anoxic zones, 4 aerobic zones；Anoxic zone is provided with agitator (4.3), and aerobic zone is provided with aeration head (4.8)；Aerobic zone
It is provided with air compressor machine (4.1), gas flowmeter (4.2), air volume regulating valve (4.4)；The short distance nitration reactor (4) of denitrification half leads to
Cross second pond connecting tube (5.1) to be connected with second pond (5)；Second pond (5) is by sludge reflux pump (4.7) and the short distance of denitrification half
Nitrator (4) water inlet pipe is connected；Second pond (5) outlet pipe reacts with subsequent closure formula Anammox bio-trickling filter
Device (6) connects；25-30cm is spaced between adjacent two layers perforated plate, filler packing ratio is 20-30%, is provided with shower nozzle (6.2), goes out
Pore (6.3), sample tap (6.5), outlet pipe (6.7) and return duct (6.6)；Closed Anammox bio-trickling filter reaction
Device (6) is connected by reflux pump (4.6) with short distance nitration reactor (4) water inlet pipe of denitrification half.
Municipal sewage and treatment of advanced stage landfill leachate handling process in this device is：By municipal sewage and closed detest
Anaerobic ammonium oxidation bio-trickling filter reactor goes out water circulation and treatment of advanced stage landfill leachate stock solution is diluted；By municipal sewage and late period
Percolate enters intermediate water tank after being mixed in proportion, and enters anti-together with anaerobic ammonia oxidation effluent and second pond returned sludge
The anoxic zone of half short distance nitration reactor is nitrified, Denitrification occurs as carbon source by the use of the Organic substance in raw water, will be flowed back
Nitrate-nitrogen reduction in sludge and anaerobic ammonia oxidation effluent backflow is nitrogen；Then enter aerobic zone and half short distance nitration occurs, will
Part mineralized nitrogen is nitrite nitrogen；Carry out Anammox into closed Anammox bio-trickling filter reactor afterwards
Reaction, by ammonia nitrogen and nitrite nitrogen nitrogen and nitrate nitrogen are converted into, and are finally reached denitrification effect.
Short distance nitration combines the denitrogenation method and dress of Anammox synchronization process municipal sewage and treatment of advanced stage landfill leachate
Put it is characterized in that including herein below：
1) proportioning intermediate water tank (3) NH4 +- N concentration：Municipal sewage water quality is specific as follows：COD concentration is 100-200mg/L；Concentration is 60-90mg/L,The concrete water quality for the treatment of of advanced stage landfill leachate
It is as follows：COD concentration is 3000-4000mg/L；Concentration is 1500-2000mg/L, SS：3000-3400mg/L,0.5-15mg/L, it is mixedConcentration is maintained at 250～350mgL-1。
2) the short distance nitration reactor (4) of denitrification half is started：Start aerobic zone first, with actual cities sewage treatment plant
Nitrifying sludge is added to the short distance nitration reactor aerobic zone of denitrification half for seed sludge, with intermediate water tank after proportioning (3) conduct
Water inlet, HRT is 12h, and DO concentration is 0.8～1.5mg/L, and pH is 7.5～8.5, and return sludge ratio is controlled in 50-100%；When going out
Nitrite accumulation rate in water is up to more than 95%, realizes short distance nitration；It is 4-6h subsequently to shorten HRT, as water outlet NH4 +-
N/NO2 -1.0～1.3, half short distance starts successfully-N mass concentration ratios.Anaerobic zone is inoculated with actual cities sewage nitration denitrification
Sludge.Return sludge ratio is controlled in 50-100%.
3) closed Anammox bio-trickling filter reactor (6) is started：Anaerobic ammonium oxidation sludge is added to into closing
Formula Anammox bio-trickling filter reactor so as to be attached on sponge filler.By the short distance nitration reactor (4) of denitrification half
Water outlet enter into closed Anammox bio-trickling filter reactor (6).When closed Anammox bio-trickling filter
Reactor (6) water outlet NH4 +- N and NO2 -- N concentration is less than 15mg/L, then closed Anammox bio-trickling filter reactor is opened
Move successfully.Return sludge ratio is controlled in 50-100%.
4) when the short distance nitration reactor (4) of denitrification half and closed Anammox bio-trickling filter reactor (6) are opened
After dynamic success, connected, adjusting water outlet reflux ratio, as the NH of system water outlet4 +- N and NO2 -- N clearances reach more than 95%
Afterwards, then system start-up success.Operational factor is as follows：Short distance nitration reactor (4) HRT of denitrification half controls are returned in 4-6h, sludge
Flow ratio control in 50-100%, aerobic zone DO in 0.8-1.5mg/L,；Closed Anammox bio-trickling filter reactor (6)
Return sludge ratio is controlled 75%.
The denitrogenation side of short distance nitration joint Anammox synchronization process municipal sewage of the present invention and treatment of advanced stage landfill leachate
Method and device, have the advantage that compared with the prior art：
1) mixed using treatment of advanced stage landfill leachate and municipal sewage, make NH4 +- N concentration reaches the most suitable model of half short distance water inlet
Enclose, without acclimation sludge the most suitable influent quality of Anammox can be rapidly achieved.
2) closed Anammox trickling filter can be carried out more efficiently compared to other anaerobic ammonia oxidation reactors
Solid-liquid separation, it is easy to operation and maintenance.
3) compared with traditional biological denitrification process, short distance nitration does not combine anaerobic ammonia oxidation process and saves aeration rate, and not
Use additional carbon.
Description of the drawings
Fig. 1 is that short distance nitration joint Anammox synchronization process municipal sewage of the present invention is de- with treatment of advanced stage landfill leachate
Nitrogen apparatus structure schematic diagram.
1 it is municipal sewage raw water box in figure, 2 be treatment of advanced stage landfill leachate raw water box, 3 be intermediate water tank, 4 is denitrification half
Short distance nitration reactor, 5 be second pond, 6 be closed Anammox bio-trickling filter reactor.1.1 is the first overflow pipe,
1.2 is the first blow-down pipe, and 1.3 is the first intermediate water tank intake pump.2.1 is the second overflow pipe, and 2.2 is the second blow-down pipe, and 2.3 are
Second intermediate water tank intake pump.3.1 is the 3rd overflow pipe, and 3.2 is the 3rd blow-down pipe.4.1 is air compressor machine, and 4.2 is gas flow
Meter, 4.3 is agitator, and 4.4 is air volume regulating valve, and 4.5 is the short distance nitration reactor intake pump of denitrification half, and 4.6 is closed
Anammox bio-trickling filter reactor reflux pump, 4.7 is second pond sludge reflux pump, and 4.8 is aeration head.5.1 is heavy for two
Pond water inlet pipe, 5.2 is closed Anammox bio-trickling filter reactor intake pump, and 5.3 is second pond returned sludge pipe valve
Door, 5.4 is spoil disposal pipe valve.6.1 it is closed Anammox bio-trickling filter reactor water intaking valve, 6.2 is shower nozzle, and 6.3 are
Venthole, 6.4 is sponge filler, and 6.5 is sample tap, and 6.6 is return duct, and 6.7 is drain valve.
Specific embodiment
With reference to the accompanying drawings and examples the present invention will be further described：At short distance nitration joint Anammox is synchronous
It is former that reason municipal sewage includes municipal sewage raw water box (1), treatment of advanced stage landfill leachate with the nitrogen rejection facility for the treatment of of advanced stage landfill leachate
The life of water tank (2), intermediate water tank (3), the short distance nitration reactor (4) of denitrification half, second pond (5) and closed Anammox
Thing trickling filter reactor (6)；Municipal sewage raw water box (1) is provided with the first overflow pipe (1.1) and the first blow-down pipe (1.2), late period
Percolate raw water box (2) is provided with the second overflow pipe (2.1) and the second blow-down pipe (2.1)；Municipal sewage raw water box (1) and evening
Phase percolate raw water box (2) is by the first intermediate water tank intake pump (1.3), the second intermediate water tank intake pump (2.3) with
Between water tank (3) water inlet pipe be connected；Intermediate water tank (3) is provided with the 3rd overflow pipe (3.1) and the 3rd blow-down pipe (3.2)；Middle water
Case is connected by intake pump (4.5) with short distance nitration reactor (4) water inlet pipe of denitrification half；The short distance nitration of denitrification half reacts
Device (4) is divided into 6 compartments, and according to the water (flow) direction flowing hole that is crisscross arranged up and down each compartment is connected；Compartment is followed successively by 2 anoxias
Area, 4 aerobic zones；Anoxic zone is provided with agitator (4.3), and aerobic zone is provided with aeration head (4.8)；Aerobic zone is provided with air compressor machine
(4.1), gas flowmeter (4.2), air volume regulating valve (4.4)；The short distance nitration reactor (4) of denitrification half is connected by second pond
Pipe (5.1) is connected with second pond (5)；Second pond (5) is by sludge reflux pump (4.7) and the short distance nitration reactor of denitrification half
(4) water inlet pipe is connected；Second pond (5) outlet pipe is connected with subsequent closure formula Anammox bio-trickling filter reactor (6)；
Closed Anammox bio-trickling filter reactor (6) is divided into 5 layers, above 4 layers of filling sponge filler (6.4), it is middle with wearing
Hole aluminium sheet separates, and 25cm is spaced between adjacent two layers dividing plate, and filler packing ratio is 30%, is provided with shower nozzle (6.2), venthole
(6.3), sample tap (6.5), outlet pipe (6.7), return duct (6.6)；Closed Anammox bio-trickling filter reactor (6)
It is connected with short distance nitration reactor (4) water inlet pipe of denitrification half by reflux pump (4.6).
Test is as follows using the concrete water quality of Beijing University of Technology's dependents' district sanitary sewage：COD concentration is 100-200mg/L； Concentration is 60-90mg/L,Test percolate takes from Beijing six
In collect refuse landfill, the existing 10 years landfill history of the landfill yard.Concrete water quality is as follows：COD：3000～4000mg/L, (NH4 +-
N：1500～2000mg/L, SS：3000～3400mg/L, TN：1600～2300mg/L, NOx --N：0.5～15mg/L, pH：7.5
～8.5.
Concrete operations are as follows：
1) proportioning intermediate water tank (3) NH4 +- N concentration：Municipal sewage water quality is specific as follows：COD concentration is 100-200mg/L；Concentration is 60-90mg/L,The concrete water quality for the treatment of of advanced stage landfill leachate
It is as follows：COD concentration is 3000-4000mg/L；Concentration is 1500-2000mg/L, SS：3000-3400mg/L,0.5-15mg/L, mixed NH4 +- N concentration is maintained at 250～350mgL-1。
2) the short distance nitration reactor (4) of denitrification half is started：Start aerobic zone first, with actual cities sewage treatment plant
Nitrifying sludge is added to the short distance nitration reactor aerobic zone of denitrification half for seed sludge, with intermediate water tank after proportioning (3) conduct
Water inlet, HRT is 12h, and DO concentration is 0.8～1.5mg/L, and pH is 7.5～8.5, and return sludge ratio is controlled in 50-100%；When going out
Nitrite accumulation rate in water is up to more than 95%, realizes short distance nitration；It is 4-6h subsequently to shorten HRT, as water outlet NH4 +-
N/NO2 -1.0～1.3, half short distance starts successfully-N mass concentration ratios.Anaerobic zone is inoculated with actual cities sewage nitration denitrification
Sludge.Return sludge ratio is controlled in 50-100%.
3) closed Anammox bio-trickling filter reactor (6) is started：Anaerobic ammonium oxidation sludge is added to into closing
Formula Anammox bio-trickling filter reactor so as to be attached on sponge filler.By the short distance nitration reactor (4) of denitrification half
Water outlet enter into closed Anammox bio-trickling filter reactor (6).When closed Anammox bio-trickling filter
Reactor (6) water outlet NH4 +- N and NO2 -- N concentration is less than 15mg/L, then closed Anammox bio-trickling filter reactor is opened
Move successfully.Return sludge ratio is controlled 75%.
4) when the short distance nitration reactor (4) of denitrification half and closed Anammox bio-trickling filter reactor (6) are opened
After dynamic success, connected, adjusting water outlet reflux ratio, as the NH of system water outlet4 +- N and NO2 -- N clearances reach more than 95%
Afterwards, then system start-up success.Operational factor is as follows：Short distance nitration reactor (4) HRT of denitrification half is controlled in 5h, sludge reflux
Than control in 50-100%, aerobic zone DO in 0.8-1.5mg/L,；Closed Anammox bio-trickling filter reactor (6) is dirty
Mud control of reflux ratio is 75%.
The result of the test of stable operation shows:The short distance nitration reactor NH of denitrification half4 +-N/NO2 -- N values 1.0～
1.3, the total nitrogen TN of system water outlet<50mg/L, TN clearance is more than 80%, water outlet NH4 +- N and NO2 -- N is respectively less than 15mg/L.
Claims (1)
1. short distance nitration combines the denitrogenation method of Anammox synchronization process municipal sewage and treatment of advanced stage landfill leachate, its feature
It is：Using following device, the device includes municipal sewage raw water box (1), treatment of advanced stage landfill leachate raw water box (2), centre
The reaction of water tank (3), the short distance nitration reactor (4) of denitrification half, second pond (5) and closed Anammox bio-trickling filter
Device (6)；Municipal sewage raw water box (1) is provided with the first overflow pipe (1.1) and the first blow-down pipe (1.2), and treatment of advanced stage landfill leachate is former
Water tank (2) is provided with the second overflow pipe (2.1) and the second blow-down pipe (2.1)；Municipal sewage raw water box (1) and treatment of advanced stage landfill leachate
Raw water box (2) is intake by the first intermediate water tank intake pump (1.3), the second intermediate water tank intake pump (2.3) and intermediate water tank (3)
Pipe is connected；Intermediate water tank (3) is provided with the 3rd overflow pipe (3.1) and the 3rd blow-down pipe (3.2)；Intermediate water tank passes through intake pump
(4.5) it is connected with short distance nitration reactor (4) water inlet pipe of denitrification half；The short distance nitration reactor (4) of denitrification half is divided into 6
Compartment, according to the water (flow) direction flowing hole that is crisscross arranged up and down each compartment is connected；Compartment is followed successively by 2 anoxic zones, and 4 aerobic
Area；Anoxic zone is provided with agitator (4.3), and aerobic zone is provided with aeration head (4.8)；Aerobic zone is provided with air compressor machine (4.1), gas stream
Gauge (4.2), air volume regulating valve (4.4)；The short distance nitration reactor (4) of denitrification half is by second pond connecting tube (5.1) and two
Heavy pond (5) connection；Second pond (5) is connected by sludge reflux pump (4.7) with short distance nitration reactor (4) water inlet pipe of denitrification half
Connect；Second pond (5) outlet pipe is connected with subsequent closure formula Anammox bio-trickling filter reactor (6)；Closed anaerobism ammonia
Oxidative biological trickling filter reactor (6) is at least divided into 5 layers, above 4 layers of filling sponge filler (6.4), centre separated with perforated plate,
Be spaced 25-30cm between adjacent two layers perforated plate, filler packing ratio is 20-30%, be provided with shower nozzle (6.2), venthole (6.3),
Sample tap (6.5), outlet pipe (6.7) and return duct (6.6)；Closed Anammox bio-trickling filter reactor (6) passes through
Reflux pump (4.6) is connected with short distance nitration reactor (4) water inlet pipe of denitrification half；
Comprise the following steps：
1) proportioning intermediate water tank (3) NH4 +- N concentration：Municipal sewage NH4 +- N concentration is 40.24～64.97mgL-1, late period rubbish
The NH of rubbish percolate4 +- N concentration is 1500～2000mgL-1, mixed NH4 +- N concentration is maintained at 250～350mgL-1；
2) the short distance nitration reactor (4) of denitrification half is started：Nitrifying sludge with actual cities sewage treatment plant is as seed sludge
The short distance nitration reactor of denitrification half is added to, with intermediate water tank after proportioning (3) as intaking, HRT is 12h, and DO concentration is 0.8
～1.5mg/L, pH are 7.5～8.5, and return sludge ratio is controlled in 50-100%；When the nitrite accumulation rate in water outlet is up to
More than 95%, realize short distance nitration；It is 4-6h subsequently to shorten HRT, as water outlet NH4 +-N/NO2 -- N mass concentration ratios are 1.0
～1.3, half short distance starts successfully；
3) closed Anammox bio-trickling filter reactor (6) is started：Anaerobic ammonium oxidation sludge is added to and closed is detested
Anaerobic ammonium oxidation bio-trickling filter reactor so as to be attached on sponge filler；By going out for denitrification half short distance nitration reactor (4)
Water enters into closed Anammox bio-trickling filter reactor (6)；When the reaction of closed Anammox bio-trickling filter
Device (6) water outlet NH4 +- N and NO2 -- N concentration be less than 15mg/L, then closed Anammox bio-trickling filter reactor start-up into
Work(；
4) when the short distance nitration reactor (4) of denitrification half and closed Anammox bio-trickling filter reactor (6) start into
After work(, connected, adjusting water outlet backflow when return sludge ratio, as the NH of system water outlet4 +- N and NO2 -- N clearances reach
After more than 95%, then system start-up success；Operational factor is as follows：Short distance nitration reactor (4) HRT of denitrification half is controlled in 4-
6h, return sludge ratio is controlled in 50-100%, and aerobic zone DO is in 0.8-1.5mg/L；Closed Anammox bio-trickling filter
Reactor (6) return sludge ratio is controlled 75%.
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| CN105712584B (en) * | 2016-04-10 | 2019-02-15 | 北京工业大学 | It is segmented denitrogenation method and device that short distance nitration merges Anammox synchronization process farm biogas slurry waste water and municipal sewage |
| CN106630414B (en) * | 2016-12-18 | 2023-07-21 | 北京工业大学 | Semi-short-cut nitrification-anaerobic ammoxidation multistage A/O autotrophic denitrification device and method |
| CN109912028B (en) * | 2019-03-05 | 2022-05-24 | 厦门百仕洁环保科技有限公司 | Synchronous autotrophic nitrogen removal method for sequencing batch biochemical reactor for water quality regulation |
| CN110104903A (en) * | 2019-06-10 | 2019-08-09 | 南方创业（天津）科技发展有限公司 | A kind of integration short distance nitration Anammox equipment and its treatment process |
| CN114195321B (en) * | 2021-11-15 | 2023-06-16 | 长沙工研院环保有限公司 | Multi-point reflux garbage leachate treatment equipment |
| CN114380389B (en) * | 2022-01-11 | 2023-08-11 | 中国建筑设计研究院有限公司 | Device and method for treating rural sewage with ultralow energy consumption |
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| CN102515350B (en) * | 2011-12-09 | 2013-07-10 | 北京工业大学 | Apparatus and method for nitrogen removal by combining garbage leachate SBR and anaerobic ammoxidation |
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Effective date of registration: 20200819 Address after: 705 Fuhai international port, Haidian District, Beijing 100079 Patentee after: BEIJING TANSI ENVIRONMENTAL PROTECTION TECHNOLOGYCO., Ltd. Address before: 100124 Chaoyang District, Beijing Ping Park, No. 100 Patentee before: Beijing University of Technology |