CN209481292U - A kind of combined anaerobic ammoxidation-anaerobism-membrane bioreactor sewage-treatment plant - Google Patents
A kind of combined anaerobic ammoxidation-anaerobism-membrane bioreactor sewage-treatment plant Download PDFInfo
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- CN209481292U CN209481292U CN201822165675.8U CN201822165675U CN209481292U CN 209481292 U CN209481292 U CN 209481292U CN 201822165675 U CN201822165675 U CN 201822165675U CN 209481292 U CN209481292 U CN 209481292U
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Abstract
The utility model discloses a kind of combined anaerobic ammoxidation-anaerobism-membrane bioreactor sewage-treatment plant, described includes water inlet regulating system, raw water pump, anaerobic ammonia oxidation reactor, anaerobic reactor, denitrification liquid return-flow system, aerating system, membrane bioreactor and suction pump.The utility model Anammox, anaerobism and membrane bioreactor are combined, pass through Anammox, anaerobic reaction and membrane bioreactor collaboration system degradation of ammonia nitrogen and organic matter, utmostly play the degradation of anaerobism and aerobic microbiological, it reduces MBR system and handles load, reach efficient mud-water separation using the crown_interception of film simultaneously, operating cost is low, high treating effect, it can be used for the processing of wastewater from chemical industry, also it can be used for landfill leachate and typical urban sewage treatment, be of great significance to high ammonia nitrogen and high organic wastewater processing qualified discharge.
Description
Technical field
The utility model relates to a kind of combined anaerobic ammoxidation-anaerobism-membrane bioreactor sewage-treatment plants, belong to
Technical field of biological sewage treatment.
Background technique
The aggravation and the unreasonable discharge of below standard water of water eutrophication problem have aggravated water environment pollution, to drinking
While water water source causes potential pollution, the fast development of the health safety and economy of the mankind is compromised significantly.With people
People's improvement of living standard and growing interest to water quality health, sewage treatment become the grand strategy mesh of the national economic development
Mark, advanced sewage treatment process be constantly developed and applied to sewage advanced treating.As drinking water potential source it
One, the degree of sewage treatment and depth moment affect the variation of water environment and the innovation of handling technology of water supply.In the master of sewage
In stream process technique, because simple process, high treating effect and economic benefit be obvious etc., advantages are widely used in bioremediation
The sewage treatment plant in the whole nation.Traditional biological denitrification process is accounted in processing high-concentration ammonia nitrogenous wastewater and low C/N than existing in waste water
The deficiencies of ground is big, energy consumption is high, nitric efficiency is low and need to add a large amount of organic carbon sources, therefore new and effective, low energy consumption denitrogenation technology
Exploitation field of water pollution control have important researching value.Patent CN105461178B discloses a kind of two-stage short distance nitre
Change/Anammox sewage disposal system has reached synchronous denitrification dephosphorizing effect, but the process flow is complicated, and in water inlet
Organic matter treatment effect is bad.Patent CN105366889B discloses a kind of town sewage denitrogenation dephosphorizing system without additional carbon
Traditional chemical/biological flocculation basin in conjunction with anaerobic ammonia oxidation process, is avoided anaerobism under the conditions of water quality changes by system, the technique
The unstability of ammonia oxidation process operation, while reducing the addition of carbon source, but the nitrate generated in anaerobic reaction fails
To being effectively treated.Patent CN20585625U discloses a kind of compound sewage treatment device, changes technique for anaerobism MBR, aerobic
MBR and nanofiltration technique combine, and realize the efficient process of sewage, but operating cost is higher and operating process is complicated.Patent
CN103224284B discloses a kind of submerged MBRs membrane bioreactor, realizes the efficient removal of ammonia nitrogen, but the technique is uncomfortable
Processing for high organic wastewater.As a kind of novel dirty water living creature processing technique, Anammox technology is not being needed
In the case where adding organic carbon source, so that it may using the effect of autotrophic type anaerobic ammonium oxidizing bacteria, using ammonium salt as electron donor, with two
Carbonoxide or carbonate are electron acceptor, by the mineralized nitrogen in raw water are that nitrogen removes by complicated biological chemistry action.
But Anammox technology needs to consume in the reaction a large amount of nitrite and generates a certain amount of there is also centainly defect is divided
Nitrate, this just determines that anaerobic ammonia oxidation process is not suitable as terminal processing techniques, it usually needs subsequent treatment process with
Reduce the nitrate content generated.
Summary of the invention
Technical problem to be solved in the utility model is in view of the defects existing in the prior art, to provide a kind of combined type and detest
Anaerobic ammonium oxidation-anaerobism-membrane bioreactor sewage-treatment plant.
In order to solve this technical problem, the utility model provides a kind of combined anaerobic ammoxidation-anaerobism-membrane bioreaction
Answer device sewage-treatment plant, including water inlet regulating system, raw water pump, anaerobic ammonia oxidation reactor, anaerobic reactor, denitrification liquid
Return-flow system, aerating system, membrane bioreactor and suction pump, the water inlet regulating system include raw water box, pH controller and
Temperature controller, pH controller and temperature controller are arranged in raw water box, the high ammonia nitrogen of control, high organic wastewater are in Optimal pH
And temperature range；Anaerobic ammonium oxidation sludge is equipped with inside the anaerobic ammonia oxidation reactor, bottom is connect with water inlet regulating system,
Top is equipped with three phase separator, and top is equipped with exhaust outlet, and top side is equipped with water outlet；The water outlet and anaerobic reactor connect
It connects, the anaerobic reactor bottom is connected to anaerobic ammonia oxidation reactor lower part by denitrification liquid return line, and upper part is logical
It crosses pipeline to connect with membrane bioreactor, the membrane bioreactor bottom is equipped with aerating system；The aerating system includes exposing
Air pump and aeration head, the aeration head setting have outside membrane bioreactor bottom, the aerating system by piping connection
Suction pump；The inlet pipeline is equipped with raw water pump, and the sewage after adjusting is squeezed into anaerobic ammonia oxidation reactor by raw water pump,
Water inlet is mixed with denilrification system phegma simultaneously, completes ammonia nitrogen removal；Water outlet enters anaerobic reactor, denitrifying in completion
Organic concentration in water inlet is reduced simultaneously；Enter membrane bioreactor through the pretreated water outlet of two-stage, further decreases residual
Ammonia nitrogen and organic matter, realize the efficient process of high ammonia nitrogen Yu high organic wastewater.
Folded plate and blender are equipped in the anaerobic reactor, the folded plate is 90~150 ° of different setback plates.
The membrane bioreactor is made of anoxic section, aerobic section and ultrafiltration membrane pool, the mixing of aerobic section aerobic tank end
Liquid is back to anoxic section, and aerobic tank end connects ultrafiltration membrane pool；Ultrafiltration membrane is equipped in the ultrafiltration membrane pool.
The ultrafiltration membrane pool uses PVDF hollow-fibre membrane, and film wire average pore size is 0.15~0.22 μm.
20~80kPa of swabbing pressure of the suction pump.
The utility model has the advantages that the utility model Anammox, anaerobism and membrane bioreactor are combined, by Anammox,
Anaerobic reaction and membrane bioreactor collaboration system degradation of ammonia nitrogen and organic matter utmostly play anaerobism and aerobic microbiological
Degradation reduces MBR system and handles load, while reaching efficient mud-water separation using the crown_interception of film, operating cost is low,
High treating effect, can be used for the processing of wastewater from chemical industry, also can be used for landfill leachate and typical urban sewage treatment, to high ammonia nitrogen
There is important directive significance with high organic wastewater processing qualified discharge.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure: 1 water inlet regulating system, 2 temperature controllers, 3pH controller, 4 raw water pumps, 5 anaerobic ammonia oxidation reactors, 6
Three phase separator, 7 exhaust outlets, 8 water outlets, 9 anaerobic reactors, 10 denitrification liquid return lines, 11 aeration pumps, 12 aeration heads,
13 ultrafiltration membranes, 14 suction pumps.
Specific embodiment
The utility model is specifically described with reference to the accompanying drawings and embodiments.
Fig. 1 show the structural schematic diagram of the utility model.
The utility model provides a kind of combined anaerobic ammoxidation-anaerobism-membrane bioreactor sewage-treatment plant, packet
It includes into water regulating system 1, raw water pump 4, anaerobic ammonia oxidation reactor 5, anaerobic reactor 9, denitrification liquid return-flow system 10, aeration
System, membrane bioreactor and suction pump 14.
The water inlet regulating system 1 includes raw water box, pH controller 3 and temperature controller 2, pH controller 3 and temperature control
Device 2 processed is arranged in raw water box, the high ammonia nitrogen of control, high organic wastewater are in Optimal pH and temperature range.
Anaerobic ammonium oxidation sludge is equipped with inside the anaerobic ammonia oxidation reactor 5, bottom is connect with water inlet regulating system 1,
Top is equipped with three phase separator 6, and top is equipped with exhaust outlet 7, and top side is equipped with water outlet 8, the water outlet 8 and anaerobic reaction
Device 9 connects.
9 bottom of anaerobic reactor is connected to 5 lower part of anaerobic ammonia oxidation reactor by denitrification liquid return line 10,
Upper part is connect by pipeline with membrane bioreactor, and the membrane bioreactor bottom is equipped with aerating system.
The aerating system includes aeration pump 11 and aeration head 12, and the aeration head 12 is arranged at membrane bioreactor bottom
There are suction pump 14 in portion, the aerating system outside by piping connection.
The inlet pipeline is equipped with raw water pump 4, and the sewage after adjusting squeezes into anaerobic ammonia oxidation reactor by raw water pump 4
In 5, while water inlet is mixed with denilrification system phegma, completes ammonia nitrogen removal；Water outlet enters anaerobic reactor 9, completes instead
Organic concentration in water inlet is reduced while nitrification；Enter membrane bioreactor through the pretreated water outlet of two-stage, further drops
The ammonia nitrogen and organic matter of low-residual, realize the efficient process of high ammonia nitrogen Yu high organic wastewater.
Further, folded plate and blender are equipped in the anaerobic reactor 9, the folded plate is 90~150 ° of different setback
Plate, to improve anaerobism transformation efficiency while improve hydraulic detention time.
Further, the membrane bioreactor is made of anoxic section, aerobic section and ultrafiltration membrane pool, aerobic section aerobic tank
End mixed liquor is back to anoxic section, and aerobic tank end connects ultrafiltration membrane pool；Ultrafiltration membrane 13 is equipped in the ultrafiltration membrane pool.
Further, the ultrafiltration membrane pool uses PVDF hollow-fibre membrane, and film wire average pore size is 0.15~0.22 μm.
Further, 20~80kPa of swabbing pressure of the suction pump 14.
The sewage water treatment method of the utility model, specifically includes following content:
Influent quality feature is 5000~12000mg/L of COD concentration, 2500~4000mg/L of ammonia nitrogen concentration.
1) sewage in regulating system 1 of intaking is controlled temperature in 20~40 DEG C of ranges by temperature controller 2；Pass through pH
Controller 3 controls pH value in 6.2~8.5 ranges；
2) sewage after adjusting squeezes into 5 main body of anaerobic ammonia oxidation reactor by raw water pump 4, and sludge retention time SRT is 8
~35d, dissolved oxygen DO concentration are 0.1~1.0mg/L, sludge concentration is 2.8~12.5g/L, oxidation-reduction potential ORP is -150
~40mV and hydraulic detention time HRT is 0.3~0.7d；
3) water inlet is mixed with the denitrification phegma containing nitrite of denitrification liquid return-flow system 10, passes through anaerobism ammonia oxygen
The biodegradation for changing the bacterium of reactor 5 reduces the content of ammonia nitrogen, synchronous to generate a certain amount of nitrate；Nitrogen is through three
Phase separator 6 passes through outside 7 discharge system of exhaust outlet after separating；
4) water outlet of denitrogenation enters anaerobic reactor 9 by water outlet 8, and hydraulic detention time HRT is 10~15d, sludge
Residence time SRT is 18~30d, sludge concentration is 6~12g/L, completes organic matter decarburization and part denitrification generates nitrogen, mention
For nitrite needed for Anammox reaction；
5) water outlet after reacting enters membrane bioreactor, and hydraulic detention time HRT is 0.3~0.9h, molten in anoxic pond
Solution oxygen DO is 0.1~0.8mg/L, sludge concentration is 2~5g/L；In aerobic section aerobic tank hydraulic detention time HRT be 8~20h,
Dissolved oxygen DO is 2.0~4.0mg/L, sludge concentration is 2~6g/L, is acted on by biodegrade and Ultra filtration membrane, and reduction has
Machine object and ammonia-nitrogen content reduce membrane reactor load, extend filter cycle, realize efficient mud-water separation, while through nitrification and instead
Nitrification removes total nitrogen.Aerating system not only increases the turbulent fluctuation of water flow in reactor, substantially reduces membrane fouling rate；In
This can be improved into water oxygen content simultaneously, promotes the quick breeding of microorganism, greatly enhances organic matter degradation rate,
Promote effluent quality.When influent quality changes, aeration quantity can be dynamically adjusted, it is ensured that effluent quality qualified discharge.
Further, denitrification liquid reflux ratio is 40%~80% in the anaerobic reactor 9.
Further, the aerobic section aerobic tank end mixed liquor is back to anoxic section, and reflux ratio is 100%~
300%.
Further, the aerating system provides oxygen for MBR membrane cisterna and increases film wire perturbation, reduces fouling membrane,
Aeration intensity is 0.1~0.4m3/h。
Embodiment one
Process influent quality feature: 6000~8000mg/L of COD concentration, 3000~4000mg/L of ammonia nitrogen concentration are former
Water.
Each technological parameter: pH controller and temperature controller adjust inlet flow-patterm 6.5 and 30 DEG C of temperature respectively；Anaerobism ammonia oxygen
Sludge retention time SRT is 9d in change reactor, dissolved oxygen DO concentration is 0.1mg/L, sludge concentration 4.0g/L, redox
Current potential ORP is -50mV and hydraulic detention time HRT is 0.6d；Folded plate is 120 ° of different setback plates in anaerobic reactor；Anaerobic reaction
Hydraulic detention time HRT is 10d in device, sludge retention time SRT is 16d, sludge concentration 8g/L, denitrification liquid reflux ratio are
40%；Membrane bioreactor anoxic section hydraulic detention time HRT is 0.4h, dissolved oxygen DO is 0.2mg/L, sludge concentration is
3.5g/L；Aerobic section hydraulic detention time HRT is 15h, dissolved oxygen DO is 2.0mg/L, sludge concentration 4g/L；Aerobic section is aerobic
It is 150% that pond end mixed liquor, which is back to anoxic section reflux ratio,；MBR membrane cisterna uses average pore size for 0.20 μm of hollow fibre of PVDF
Tie up film, aerating system aeration intensity is 0.2m3/ h, swabbing pressure 50kPa.
Treatment effect: ammonia nitrogen in high density and organic matter raw water after Anammox-anaerobism-Membrane Bioreactor for Wastewater Treatment,
75% or more COD removal rate, 78% or more ammonia nitrogen removal frank.It is shown in Table 1.
1 reactor water purification efficiency evaluation of table
Embodiment two
Process influent quality feature: 5000~6500mg/L of COD concentration, 2500~2800mg/L of ammonia nitrogen concentration are former
Water.
Each technological parameter: pH controller and temperature controller adjust inlet flow-patterm 6.5 and 25 DEG C of temperature respectively；Anaerobism ammonia oxygen
Sludge retention time SRT is 10d in change reactor, dissolved oxygen DO concentration is 0.2mg/L, sludge concentration 4.5g/L, is aoxidized also
Former current potential ORP is 10mV and hydraulic detention time HRT is 0.4d；Folded plate is 120 ° of different setback plates in anaerobic reactor；Anaerobism is anti-
Answer in device that hydraulic detention time HRT is 12d, sludge retention time SRT is 18d, sludge concentration 9g/L, denitrification liquid reflux ratio
It is 40%；Membrane bioreactor anoxic section hydraulic detention time HRT is 0.5h, dissolved oxygen DO is 0.1mg/L, sludge concentration is
2.5g/L；Aerobic section hydraulic detention time HRT is 12h, dissolved oxygen DO is 2.0mg/L, sludge concentration 4g/L；Aerobic section is aerobic
It is 100% that pond end mixed liquor, which is back to anoxic section reflux ratio,；MBR membrane cisterna uses average pore size for 0.15 μm of hollow fibre of PVDF
Tie up film, aerating system aeration intensity is 0.3m3/ h, swabbing pressure 40kPa.
Treatment effect: ammonia nitrogen in high density and organic matter raw water after Anammox-anaerobism-Membrane Bioreactor for Wastewater Treatment,
85% or more COD removal rate, 82% or more ammonia nitrogen removal frank.It is shown in Table 2.
2 reactor water purification efficiency evaluation of table
Embodiment three
Process influent quality feature: 5000~8000mg/L of COD concentration, 2500~3500mg/L of ammonia nitrogen concentration are former
Water.
Each technological parameter: pH controller and temperature controller adjust inlet flow-patterm 7.2 and 30 DEG C of temperature respectively；Anaerobism ammonia oxygen
Sludge retention time SRT is 15d in change reactor, dissolved oxygen DO concentration is 0.1mg/L, sludge concentration 6g/L, redox
Current potential ORP is 30mV and hydraulic detention time HRT is 0.6d；Folded plate is 90 ° of different setback plates in anaerobic reactor；Anaerobic reactor
Middle hydraulic detention time HRT is 16d, sludge retention time SRT is 20d, sludge concentration 12g/L, denitrification liquid reflux ratio are
60%；Membrane bioreactor anoxic section hydraulic detention time HRT is 0.7h, dissolved oxygen DO is 0.2mg/L, sludge concentration is
3.6g/L；Aerobic section hydraulic detention time HRT is 16h, dissolved oxygen DO is 4.0mg/L, sludge concentration 5g/L；Aerobic section is aerobic
It is 300% that pond end mixed liquor, which is back to anoxic section reflux ratio,；MBR membrane cisterna uses average pore size for 0.22 μm of hollow fibre of PVDF
Tie up film, aerating system aeration intensity is 0.4m3/ h, swabbing pressure 30kPa.
Treatment effect: ammonia nitrogen in high density and organic matter raw water after Anammox-anaerobism-Membrane Bioreactor for Wastewater Treatment,
95% or more COD removal rate, 94% or more ammonia nitrogen removal frank.It is shown in Table 3.
3 reactor water purification efficiency evaluation of table
The advantage of the utility model:
1) nitrite that the reflux of denitrification liquid saves 40% adds, and reduces operating cost and energy consumption, process flow letter
It is single, it is good in economic efficiency；2) shorten the reaction time, reduce reactor volume, system processing load is big, and land occupation is few, reduces capital construction and throws
Money；3) efficient mud-water separation is realized using membrane bioreactor, realize that reactor hydraulic detention time and sludge age are kept completely separate,
Higher active mud content in maintenance system, improves effluent quality while ensureing outlet effect；4) Anammox and anaerobism
Two-stage treatment realizes the degradation step by step of organic matter and ammonia nitrogen, reduces the processing load of membrane bioreactor, be conducive to nitrifier
Breeding；5) sludge yield is low, high degree of automation.
The utility model Anammox, anaerobism and membrane bioreactor are combined, by Anammox, anaerobic reaction with
Membrane bioreactor collaboration system degradation of ammonia nitrogen and organic matter utmostly play the degradation of anaerobism and aerobic microbiological,
It reduces MBR system and handles load, while reaching efficient mud-water separation using the crown_interception of film, operating cost is low, treatment effect
It is good, it can be used for the processing of wastewater from chemical industry, also can be used for landfill leachate and typical urban sewage treatment, to high ammonia nitrogen and Gao Youji
Object wastewater treatment qualified discharge has important directive significance.
The utility model the embodiment above, is merely illustrative, be not it is only, it is all in the scope of the utility model
Or the change in equivalent the scope of the utility model is surrounded by the utility model.
Claims (5)
1. a kind of combined anaerobic ammoxidation-anaerobism-membrane bioreactor sewage-treatment plant, it is characterised in that: including water inlet
Regulating system (1), raw water pump (4), anaerobic ammonia oxidation reactor (5), anaerobic reactor (9), denitrification liquid return line (10),
Aerating system, membrane bioreactor and suction pump (14), the water inlet regulating system (1) include raw water box, pH controller (3) and
Temperature controller (2), pH controller (3) and temperature controller (2) are arranged in raw water box, the high ammonia nitrogen of control, high organic matter give up
Water is in Optimal pH and temperature range；Anaerobic ammonium oxidation sludge, bottom and water inlet are equipped with inside the anaerobic ammonia oxidation reactor (5)
Regulating system (1) connection, top are equipped with three phase separator (6), and top is equipped with exhaust outlet (7), and top side is equipped with water outlet
(8)；The water outlet (8) connect with anaerobic reactor (9), and anaerobic reactor (9) bottom passes through denitrification liquid return pipe
Road (10) is connected to anaerobic ammonia oxidation reactor (5) lower part, and upper part is connect by pipeline with membrane bioreactor, and the film is raw
Object reactor bottom is equipped with aerating system；The aerating system includes aeration pump (11) and aeration head (12), the aeration head
(12) setting has suction pump (14) by piping connection outside membrane bioreactor bottom, aerating system；The inlet pipeline
Be equipped with raw water pump (4), sewage after adjusting is squeezed into anaerobic ammonia oxidation reactor (5) by raw water pump (4), while intake with
The mixing of denilrification system phegma, completes ammonia nitrogen removal；Water outlet enters anaerobic reactor (9), completes denitrifying to drop simultaneously
Organic concentration in low water inlet；Enter membrane bioreactor through the pretreated water outlet of two-stage, further decreases remaining ammonia nitrogen
With organic matter, the efficient process of high ammonia nitrogen Yu high organic wastewater is realized.
2. combined anaerobic ammoxidation-anaerobism-membrane bioreactor sewage-treatment plant according to claim 1, special
Sign is: folded plate and blender is equipped in the anaerobic reactor (9), the folded plate is 90~150 ° of different setback plates.
3. combined anaerobic ammoxidation-anaerobism-membrane bioreactor sewage-treatment plant according to claim 1, special
Sign is: the membrane bioreactor is made of anoxic section, aerobic section and ultrafiltration membrane pool, aerobic section aerobic tank end mixed liquor
It is back to anoxic section, aerobic tank end connects ultrafiltration membrane pool；Ultrafiltration membrane (13) are equipped in the ultrafiltration membrane pool.
4. combined anaerobic ammoxidation-anaerobism-membrane bioreactor sewage-treatment plant according to claim 3, special
Sign is: the ultrafiltration membrane pool uses PVDF hollow-fibre membrane, and film wire average pore size is 0.15~0.22 μm.
5. combined anaerobic ammoxidation-anaerobism-membrane bioreactor sewage treatment dress according to claim 1-4
It sets, it is characterised in that: 20~80kPa of swabbing pressure of the suction pump (14).
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| CN109607786A (en) * | 2018-12-21 | 2019-04-12 | 济南尚方环保科技有限公司 | A kind of combined anaerobic ammoxidation-anaerobism-membrane bioreactor sewage-treatment plant and method |
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| CN109607786A (en) * | 2018-12-21 | 2019-04-12 | 济南尚方环保科技有限公司 | A kind of combined anaerobic ammoxidation-anaerobism-membrane bioreactor sewage-treatment plant and method |
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