CN105541041A - AOOC combined equipment for treating sewage and realizing renewable water and sewage treatment method - Google Patents
AOOC combined equipment for treating sewage and realizing renewable water and sewage treatment method Download PDFInfo
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- CN105541041A CN105541041A CN201610047660.4A CN201610047660A CN105541041A CN 105541041 A CN105541041 A CN 105541041A CN 201610047660 A CN201610047660 A CN 201610047660A CN 105541041 A CN105541041 A CN 105541041A
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- 239000010865 sewage Substances 0.000 title claims abstract description 58
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000011282 treatment Methods 0.000 title abstract description 15
- 238000005273 aeration Methods 0.000 claims abstract description 46
- 239000000919 ceramic Substances 0.000 claims abstract description 31
- 239000012528 membrane Substances 0.000 claims abstract description 30
- 238000010992 reflux Methods 0.000 claims abstract description 21
- 238000005276 aerator Methods 0.000 claims abstract description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 50
- 229910052760 oxygen Inorganic materials 0.000 claims description 50
- 239000001301 oxygen Substances 0.000 claims description 50
- 230000009189 diving Effects 0.000 claims description 14
- 230000008929 regeneration Effects 0.000 claims description 12
- 238000011069 regeneration method Methods 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 238000006396 nitration reaction Methods 0.000 claims description 9
- 239000003344 environmental pollutant Substances 0.000 claims description 8
- 231100000719 pollutant Toxicity 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 7
- 239000002957 persistent organic pollutant Substances 0.000 claims description 6
- 230000000630 rising effect Effects 0.000 claims description 6
- 238000000354 decomposition reaction Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 244000005700 microbiome Species 0.000 claims description 5
- 238000005728 strengthening Methods 0.000 claims description 4
- 230000004907 flux Effects 0.000 claims description 3
- 230000002906 microbiologic effect Effects 0.000 claims description 3
- 239000010802 sludge Substances 0.000 abstract description 24
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 1
- 229910052698 phosphorus Inorganic materials 0.000 abstract 1
- 239000011574 phosphorus Substances 0.000 abstract 1
- 230000008569 process Effects 0.000 description 17
- 230000000694 effects Effects 0.000 description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- 239000002028 Biomass Substances 0.000 description 4
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 230000003203 everyday effect Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 241000894007 species Species 0.000 description 3
- 238000003911 water pollution Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 230000035764 nutrition Effects 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004166 bioassay Methods 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229910052571 earthenware Inorganic materials 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 230000007102 metabolic function Effects 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- 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
- C02F3/02—Aerobic processes
-
- 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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses an AOOC combined equipment for treating sewage and realizing renewable water and a method and belongs to the technical field of sewage treatment. The combined equipment comprises an A (anoxic) tank, an O (oxic) tank and an OC tank, and a flow pusher is arranged in the A tank; an aerator, a flow pusher and an underwater reflux pump are arranged in the O tank, the underwater reflux pump is communicated with the A tank through a pipeline, and the O tank is connected with the OC tank through a reserved opening; three groups of aerator pipes and an underwater reflux pump are arranged in the OC tank, the underwater reflux pump is communicated with the A tank through a pipeline, a water outlet pipe of a nano ceramic membrane module is communicated with a vacuum pump, a water outlet is formed in the OC tank, and a vacuum pump is connected with the water outlet. According to the combined equipment, the required aeration rate is low, the operation cost is reduced, efficient nitrogen and phosphorus removal is realized, and surplus sludge discharge is reduced.
Description
Technical field
The present invention relates to technical field of sewage, relate to and a kind ofly dispose of sewage and realize AOOC clustered aggregates and the sewage treatment method of regeneration water.
Background technology
Due to the expansion day by day of China's urban population and Urban Scale, result in the continuous increase of water requirement, meanwhile, every day also creates a large amount of sewage.The sewage work in a lot of cities and towns is also unsound, so much enter directly or indirectly in local water body in these sewage, causes the pollution of surface water body, and water quality of river loses when normal function, lake water eutrophication and red tide occur etc. again and again report.Water pollution has become the fact that can not be ignored in China, and become distinct issues of restriction China sustainable economic development, even if the treatment capacity of sewage work is enough, the old property of its equipment and lower working efficiency also become a large problem, therefore the constructing emphases of " 12 " is on the upgrading for old facility.Generally speaking, Urban Water pollution problem is solved very urgent.
Modern sewage disposal technology, can be divided into the large class of Physical, chemical method, physico-chemical processes and biological treatment four by its action principle.Wherein biological treatment is again the most effective treatment process, and the biological treatment of sewage utilizes bacteria metabolism function exactly, to make in sewage, in dissolve and the organic pollutant of colloidal state is decomposed and is converted into harmless inorganic substance, sewage to be purified.Biological treatment comprises again activated sludge process and biomembrance process.The technique that activated sludge process generally adopts has SBR technique, CAST technique, adsorption biodegradation, A
2/ O technique and oxidation ditch process etc.Conventional biomembrance process mainly contains biological filter process, bio-disc system, biological contact oxidation process and biological fluidized bed method etc.These techniques, when processing sanitary sewage, can obtain good scavenging effect, but also there are some shortcomings being difficult to overcome, as: working cost is high; Sludge bulking problem easily occurs; It is large that difficulty is disposed in excess sludge process.Therefore, accelerate to solve day by day serious city (town) water pollution problems, not only need to strengthen the development research to sewage treatment process, but also should according to the feature of the economic strength in city (town), sewage quantity and sewage quality, adopt low, the convenient management of investment, the novel method that stable, treatment effect good, surplus sludge volume is few, to accelerate the development of sewage disposal technology and to improve the effect of sewage disposal.
Summary of the invention
The object of this invention is to provide and a kind ofly dispose of sewage and realize AOOC clustered aggregates and the sewage treatment method of regeneration water, solve working cost in prior art high, sludge bulking easily occurs, and the large problem of difficulty is disposed in excess sludge process.
The technical solution adopted in the present invention is, a kind ofly disposes of sewage and realizes the AOOC clustered aggregates of regeneration water, and it is characterized in that, this clustered aggregates is made up of A pond anoxic pond, O pond oxygen compatibility pool and OC pond; Anoxic pond upper end, A pond sets into the mouth of a river, arranges the first impeller in the anoxic pond of A pond; A pond anoxic pond is communicated with O pond oxygen compatibility pool, in the oxygen compatibility pool of O pond, the first aerator is set, arrange the second impeller and the 3rd impeller in the oxygen compatibility pool of O pond, arrange reserved opening in the pool wall bottom of O pond last pond body of oxygen compatibility pool, O pond oxygen compatibility pool is communicated with by reserved opening with OC pond; Arrange the second aeration tube, the 3rd aeration tube and the 4th aeration tube in OC pond, in OC pond, the rising pipe of nano ceramics membrane module is communicated with vacuum pump, and the pool wall in OC pond sets out the mouth of a river, and vacuum pump is communicated with water outlet.
Dispose of sewage and realize the AOOC clustered aggregates of regeneration water, be further characterized in that, further, last body bottom, pond of O pond oxygen compatibility pool arranges the first diving reflux pump, and the first diving reflux pump is communicated with A pond anoxic pond by pipeline.
Further, arrange the second diving reflux pump in OC pond, the second diving reflux pump is communicated with A pond anoxic pond by pipeline.
Another technical scheme of the present invention is, a kind ofly disposes of sewage and realizes the method for regeneration water, adopts aforesaid device, it is characterized in that, specifically carry out according to following steps:
Step 1,
Former water flows into A pond anoxic pond by water inlet, the organic pollutant in a large amount of anerobe efficient-decomposition sewage is cultivated in the anoxic pond of A pond, oxygen section returned sluge of holding concurrently is back to A pond anoxic pond from O pond oxygen compatibility pool, and aerobic section returned sluge is back to A pond anoxic pond from OC pond, realizes denitrogenation dephosphorizing simultaneously;
Step 2,
In the anoxic pond of A pond, reacted sewage is through impeller plug-flow to O pond oxygen compatibility pool, and carry out micro-aeration by the first aerator in the oxygen compatibility pool of O pond, in the oxygen compatibility pool of O pond, the kind complexity of microorganism is various, can absorb multiple pollutant or decompose;
Step 3,
Sewage after micro-aerated reaction enters OC pond by reserved opening, the strong aeration of intermittent type is carried out by the second aeration tube, the 3rd aeration tube and the 4th aeration tube in OC pond, the further decomposing pollutant of a large amount of aerobic microbiological is cultivated in OC pond, carry out strengthening nitration reaction, constantly clean the ceramic membrane surface of nano ceramics membrane module in OC pond simultaneously, thus ensure that flux and the life cycle of ceramic membrane;
Step 4,
It is inner that sewage after strong aeration nano ceramics membrane module surrounded surface from OC pond enters nano ceramics membrane module in OC pond, thus achieve the accurate separation of solid-liquid, the water outlet of sewage after being separated is assembled by the rising pipe of nano ceramics membrane module, is then evacuated to water outlet by vacuum pump.
The invention has the beneficial effects as follows, this clustered aggregates utilizes micro-aeration and biological process and nanometer ceramic membrane to be leading technology, make general sanitary sewage, Industrial Waste Water Treatments reaches the standard being better than GB18918-2002 one-level A, water outlet can be back to road and water and spill, green colored water, defend lavatory water etc., realize integrated wastewater to utilize, there is significant environmental benefit, Social benefit and economic benefit.
Micro-aeration creates oxygen environment of holding concurrently, microbe species is many, and more effectively remove the multiple pollutant in sewage, strong aeration section both strengthened nitration reaction, completing in solid-liquid separation process simultaneously, prevent again face blocked, utilize nano ceramics film thoroughly can be separated muddy water, interception macromole organic pollutant, significantly improve wastewater treatment efficiency, can obtain good effluent quality, the present invention also has following advantage
1. biomass superelevation in system,
Owing to have employed nano ceramics membrane separation technique, prevent the loss of mud.In multi-stage biological reaction tank, not only microbe species is many, and amount is very large, and test and Practical Project operation result show, can form the biomass of ultrahigh concentration, even can reach the concentration of 20000mgMLSS/L in system.The biomass of high density like this, can complete contaminant degradation effect fast, reduces hydraulic detention time.
2. needed for, aeration rate is low, and running cost is low,
Oxygen environment of holding concurrently considerably reduces aeration rate, can save the energy consumption of more than 50%, reduce working cost than traditional aeration system.And be adopt intermittent operation in strong aeration section, required aeration rate reduces further, and energy consumption cost comparatively traditional activated sludge process obviously reduces.
3. excess sludge seldom discharges, how by as the endogenous digestion of carbon source,
System is while realizing waste water treating and reutilizing, mud has been carried out endogenous metabolism decomposition as carbon source by microorganism, achieve the significantly decrement of organic sludge, can realize substantially without organic residual mud discharging, greatly reduce the quantity discharged of excess sludge, thus save the running cost needed for a large amount of disposing sludge.
Newly-increased mud is broken down into small organic molecule in the effect next section of facultative anaerobe, is then decomposed into CO O section is oxidized further
2, H
2the inorganicss such as O; Another part is synthesized as cell.Under low sludge loading condition, this cell is broken down into small organic molecule as nutrition again in facultative anaerobe effect next section, is then oxidizedly again decomposed into CO
2, H
2the inorganicss such as O, therewith back and forth, intrasystem organic sludge does not just have enrichment to increase substantially.
4. simultaneous denitrification,
Under double oxygen condition, system itself has short distance nitration, Anammox effect, can realize denitrification reaction; Returned sluge is back to A section from two O sections, decrease the oxygen supply of two O sections, simultaneously, be back to active sludge or the nitre nitrogen component of A section, react with the carbon source in former water, realize anti-nitration reaction, eliminate supplementing of carbon source, complete denitrogenation dephosphorizing more efficiently, thus achieve efficient denitrification object.
Accompanying drawing explanation
Fig. 1 is AOOC clustered aggregates orthographic plan.
Fig. 2 is AOOC clustered aggregates front view.
Fig. 3 is AOOC clustered aggregates side-view.
Fig. 4 is COD Inlet and outlet water concentration map.
Fig. 5 is ammonia nitrogen Inlet and outlet water concentration map.
In figure, 1. water inlet, 2. the first impeller, 3. the second impeller, 4.A pond anoxic pond, 5.O pond oxygen compatibility pool, 6. the first aerator, 7. the 3rd impeller, 8. the first diving reflux pump, oxygen section returned sluge of 9. holding concurrently, 10. reserved opening, 11. second aeration tubes, 12.OC pond, 13. the 3rd aeration tubes, 14. vacuum pumps, 15. the 4th aeration tubes, 16. nano ceramics membrane modules, 17. second diving reflux pumps, 18. aerobic section returned sluges, 19. water outlets.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
The invention provides and a kind ofly dispose of sewage and realize AOOC clustered aggregates and the method for regeneration water, is the high-efficiency sewage treatment process combined with biological processing unit by nano ceramics film separation unit.
Dispose of sewage and realize the AOOC clustered aggregates of regeneration water, see Fig. 1-3, this clustered aggregates is made up of A pond anoxic pond 4, O pond oxygen compatibility pool 5 and OC pond 12; Anoxic pond 4 upper end, A pond sets in pond, the mouth of a river 1, A anoxic pond 4 and arranges the first impeller 2; A pond anoxic pond 4 is communicated with O pond oxygen compatibility pool 5, first aerator 6 is set in O pond oxygen compatibility pool 5, second impeller 3 and the 3rd impeller 7 are set in O pond oxygen compatibility pool 5, the O pond oxygen compatibility pool do not waited according to project particular case magnitude setting and impeller, arrange the first diving reflux pump 8, first diving reflux pump 8 to be communicated with A pond anoxic pond 4 by pipeline in last body bottom, pond of O pond oxygen compatibility pool 5; The pool wall bottom of last pond body of O pond oxygen compatibility pool 5 is arranged reserved opening 10, O pond oxygen compatibility pool 5 and is communicated with by reserved opening 10 with OC pond 12; Arrange in OC pond 12 in second aeration tube 11, the 3rd aeration tube 13 and the 4th aeration tube 15, OC pond 12 arrange second diving reflux pump 17, second dive under water reflux pump 17 be communicated with A pond anoxic pond 4 by pipeline; In OC pond 12, the rising pipe of nano ceramics membrane module 16 is communicated with vacuum pump 14, and the pool wall in OC pond 12 sets out the mouth of a river 19, and vacuum pump 14 is communicated with water outlet 19.
Technical process,
Step 1,
Former water flows into A pond anoxic pond 4 by water inlet 1, the organic pollutant in a large amount of anerobe efficient-decomposition sewage is cultivated in A pond anoxic pond 4, oxygen section returned sluge 9 of holding concurrently is back to A pond anoxic pond 4 from O pond oxygen compatibility pool 5, aerobic section returned sluge 18 is back to A pond anoxic pond 4 from OC pond 12, realizes denitrogenation dephosphorizing simultaneously;
Step 2,
In A pond anoxic pond 4, reacted sewage carries out micro-aeration by the first aerator 6 through impeller plug-flow to oxygen compatibility pool 5, O pond, O pond oxygen compatibility pool 5, and in O pond oxygen compatibility pool 5, the kind complexity of microorganism is various, can absorb multiple pollutant or decompose;
Step 3,
Sewage after micro-aerated reaction enters OC pond 12 by reserved opening 10, the strong aeration of intermittent type is carried out by the second aeration tube 11, the 3rd aeration tube 13 and the 4th aeration tube 15 in OC pond 12, the further decomposing pollutant of a large amount of aerobic microbiological is cultivated in OC pond 12, carry out strengthening nitration reaction, constantly clean the ceramic membrane surface of nano ceramics membrane module 16 in OC pond 12 simultaneously, thus ensure that flux and the life cycle of ceramic membrane;
Step 4,
It is inner that sewage after strong aeration nano ceramics membrane module 16 surrounded surface from OC pond enters nano ceramics membrane module 16 in OC pond 12, thus achieve the accurate separation of solid-liquid, the water outlet of sewage after being separated is assembled by the rising pipe of nano ceramics membrane module 16, is then evacuated to water outlet 19 by vacuum pump 14.
Technological principle,
A pond anoxic pond 4 is anoxic microbial reaction section, by cultivating a large amount of anerobes, makes organic pollutant obtain efficient-decomposition, and by reacting with double oxygen section returned sluge 9 and aerobic section returned sluge 18, realizes denitrogenation dephosphorizing simultaneously;
O pond oxygen compatibility pool 5 is micro-aeration sections, pond body quantity basis project different set, and in O pond oxygen compatibility pool 5, the kind complexity of microorganism is various, can absorb multiple pollutant or decompose, and short distance nitration, Anammox occurs, can realize denitrification reaction; Newly-increased mud is broken down into small organic molecule in the effect next section of facultative anaerobe, then oxidizedly further in OC pond 12 is decomposed into CO
2, H
2the inorganicss such as O; Another part is synthesized as cell, and under low sludge loading condition, this cell is broken down into small organic molecule as nutrition again in facultative anaerobe effect next section, is then oxidizedly again decomposed into CO
2, H
2the inorganicss such as O, therewith back and forth, intrasystem organic sludge does not just have enrichment to increase substantially, achieves the significantly decrement of organic sludge, greatly reduces the quantity discharged of excess sludge, thus saved the running cost needed for a large amount of disposing sludge; Oxygen environment of holding concurrently considerably reduces aeration rate, can save the energy consumption of more than 50%, reduce working cost than traditional aeration system;
OC pond 12 is strong aeration sections, makes good use of oxygen animalcule and decomposes further the pollutent in sewage, strengthening nitration reaction, cleans the film surface of the nano ceramics membrane module 16 in OC pond 12 simultaneously, prevents by toxicity bioassay; Strong aeration section adopts intermittent operation, and energy consumption cost comparatively traditional activated sludge process is obviously low;
OC pond make use of current state-of-the-art nano ceramics membrane module in the world, carry out solid-liquid separation, prevent the loss of mud, and the SS in water outlet is almost close to zero to sewage, and purifies other pollution components further, and water outlet can be reproduced utilization.
Oxygen section returned sluge 9 of holding concurrently is back to A pond anoxic pond 4 from O pond oxygen compatibility pool 5, aerobic section returned sluge 18 is back to A pond anoxic pond 4 from OC pond 12, be back to active sludge or the nitre nitrogen component of A pond anoxic pond 4 simultaneously, react with the carbon source in former water, realize anti-nitration reaction, eliminate supplementing of carbon source, complete denitrogenation dephosphorizing more efficiently, thus achieve efficient denitrification object.In multi-stage biological reaction tank, not only microbe species is many, and amount is very large, can form the biomass of ultrahigh concentration, and then complete contaminant degradation effect fast in system, reduces hydraulic detention time.
In order to the reliability of technique is selected in checking further, have selected one was that the AAO reaction tank of pulling flow type is transformed originally, cancel an A section and transform micro-aeration section as, add two under water plug flow device realize sludge reflux, introduced the nano ceramics film of certain company of Japan, the needing of the design consideration membrane module of strong aeration installs aerating system.The original two group reaction ponds of sewage work, existing to wherein one group carry out renovation and utilization, the treatment scale in single pond is 10,000 m
3/ d, total hrt is 5.7 hours;
Compared with former technique, the apparatus assembly that novel process increases is as follows:
A. nano ceramics membrane module, quantity: 70 covers, specification: 35 covers, processing power is 10,000 m
3/ d, comprises earthenware slab membrane module, water pump, aerating system etc.Physical dimension: 3300 × 2100 × 720mm, single cover diaphragm number: 400, effective film area: 200m
2
B. self-priming filtration pump, quantity: 3 (2 is standby with 1), flow: 210m
3/ h, lift: 20m, power: 18.5kw;
C. Double-curved-surface stirring machine, quantity: 2, service range: 2-5m, power: 2.2kw;
D. diving mixer, quantity: 1, impeller diameter: 620mm, power: 4kw;
E. to dive under water reflux pump, quantity: 1, impeller diameter: 600mm, power: 4kw;
F. to dive under water reflux pump, quantity: 1, impeller diameter: 400mm, power: 1.5kw;
G. vacuum pump, quantity: 1, minimum absolute pressure-0.098MPa, sob speed 1.83m
3/ min, power: 4kw;
H.MH type cucurbit gantry, quantity: 1, hoisting capacity 5t, span 10m, power: 2.75-4.25kw.
Sewage work is from debugging to existing 1 wheat harvesting period of operation, and through the continuous detecting of nearly two weeks, the COD concentration in record water inlet every day in COD concentration, water outlet, is shown in Fig. 4; Ammonia nitrogen concentration in record water inlet every day, the ammonia nitrogen concentration in water outlet, be shown in Fig. 5; Be not difficult to find by Fig. 4 and Fig. 5, the COD in sewage and the content of ammonia nitrogen greatly reduce after process of the present invention, and effluent quality is better than the emission standard of GB18918-2002 one-level A, and effect is very remarkable.
Claims (4)
1. dispose of sewage and realize the AOOC clustered aggregates of regeneration water, it is characterized in that, this clustered aggregates is made up of A pond anoxic pond (4), O pond oxygen compatibility pool (5) and OC pond (12); Anoxic pond (4) upper end, A pond sets into the mouth of a river (1), arranges the first impeller (2) in A pond anoxic pond (4); A pond anoxic pond (4) is communicated with O pond oxygen compatibility pool (5), first aerator (6) is set in O pond oxygen compatibility pool (5), second impeller (3) and the 3rd impeller (7) are set in O pond oxygen compatibility pool (5), arrange reserved opening (10) in the pool wall bottom of O pond oxygen compatibility pool (5) last pond body, O pond oxygen compatibility pool (5) is communicated with by reserved opening (10) with OC pond (12); Second aeration tube (11), the 3rd aeration tube (13) and the 4th aeration tube (15) are set in OC pond (12), in OC pond (12), the rising pipe of nano ceramics membrane module (16) is communicated with vacuum pump (14), the pool wall in OC pond (12) sets out the mouth of a river (19), and vacuum pump (14) is communicated with water outlet (19).
2. according to claim 1ly a kind ofly dispose of sewage and realize the AOOC clustered aggregates of regeneration water, it is characterized in that, last body bottom, pond of described O pond oxygen compatibility pool (5) arranges the first diving reflux pump (8), and the first diving reflux pump (8) is communicated with A pond anoxic pond (4) by pipeline.
3. according to claim 1ly a kind ofly dispose of sewage and realize the AOOC clustered aggregates of regeneration water, it is characterized in that, arrange the second diving reflux pump (17) in described OC pond (12), the second diving reflux pump (17) is communicated with A pond anoxic pond (4) by pipeline.
4., as claim 1-3 disposing of sewage and the AOOC clustered aggregates realizing a regeneration water method of disposing of sewage as described in any one, it is characterized in that, specifically carry out according to following steps:
Step 1,
Former water flows into A pond anoxic pond (4) by water inlet (1), the organic pollutant in a large amount of anerobe efficient-decomposition sewage is cultivated in A pond anoxic pond (4), oxygen section returned sluge (9) of holding concurrently is back to A pond anoxic pond (4) from O pond oxygen compatibility pool (5), aerobic section returned sluge (18) is back to A pond anoxic pond (4) from OC pond (12), realizes denitrogenation dephosphorizing simultaneously;
Step 2,
In A pond anoxic pond (4) reacted sewage through impeller plug-flow to O pond oxygen compatibility pool (5), micro-aeration is carried out by the first aerator (6) in O pond oxygen compatibility pool (5), the kind complexity of O pond oxygen compatibility pool (5) interior microorganism is various, can absorb multiple pollutant or decompose;
Step 3,
Sewage after micro-aerated reaction enters OC pond (12) by reserved opening (10), the strong aeration of intermittent type is carried out by the second aeration tube (11), the 3rd aeration tube (13) and the 4th aeration tube (15) in OC pond (12), the further decomposing pollutant of a large amount of aerobic microbiological is cultivated in OC pond (12), carry out strengthening nitration reaction, constantly clean the ceramic membrane surface of nano ceramics membrane module (16) in OC pond (12) simultaneously, thus ensure that flux and the life cycle of ceramic membrane;
Step 4,
It is inner that sewage after strong aeration nano ceramics membrane module (16) surrounded surface from OC pond enters nano ceramics membrane module (16) in OC pond (12), thus achieve the accurate separation of solid-liquid, the water outlet of sewage after being separated is assembled by the rising pipe of nano ceramics membrane module (16), is then evacuated to water outlet (19) by vacuum pump (14).
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Application publication date: 20160504 |