CN2767434Y - Two-kind sludge denitrification and dephosphorization experiment device - Google Patents
Two-kind sludge denitrification and dephosphorization experiment device Download PDFInfo
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- CN2767434Y CN2767434Y CNU2005200019678U CN200520001967U CN2767434Y CN 2767434 Y CN2767434 Y CN 2767434Y CN U2005200019678 U CNU2005200019678 U CN U2005200019678U CN 200520001967 U CN200520001967 U CN 200520001967U CN 2767434 Y CN2767434 Y CN 2767434Y
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- 239000010802 sludge Substances 0.000 title claims abstract description 44
- 238000002474 experimental method Methods 0.000 title abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000005273 aeration Methods 0.000 claims abstract description 15
- 230000008021 deposition Effects 0.000 claims abstract description 12
- 239000013049 sediment Substances 0.000 claims description 12
- 239000012528 membrane Substances 0.000 claims description 10
- 238000010992 reflux Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 8
- 230000000630 rising effect Effects 0.000 claims description 5
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 17
- 206010021143 Hypoxia Diseases 0.000 abstract description 5
- 238000006396 nitration reaction Methods 0.000 abstract description 4
- 238000003756 stirring Methods 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 35
- 229910052698 phosphorus Inorganic materials 0.000 description 35
- 239000011574 phosphorus Substances 0.000 description 35
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 26
- 239000010865 sewage Substances 0.000 description 24
- 238000000034 method Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 13
- 229910052757 nitrogen Inorganic materials 0.000 description 13
- 241000894006 Bacteria Species 0.000 description 12
- 230000008569 process Effects 0.000 description 9
- 238000007599 discharging Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 238000012851 eutrophication Methods 0.000 description 5
- 229920000388 Polyphosphate Polymers 0.000 description 4
- 229920000037 Polyproline Polymers 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000000813 microbial effect Effects 0.000 description 4
- 239000001205 polyphosphate Substances 0.000 description 4
- 235000011176 polyphosphates Nutrition 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 3
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000006228 supernatant Substances 0.000 description 3
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 239000008103 glucose Substances 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000007954 hypoxia Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model relates to a two sludge denitrification and dephosphorization experiment device formed by connecting a raw water pipe, a water tank, a pump, an anaerobic pool, a middle deposition pool, an aerobe film nitration pool, an oxygen deficiency pool, a rapid aeration pool, an end deposition pool and a water outlet pipe in series. Stirring devices are arranged in the anaerobic pool and the oxygen deficiency pool. An overstepping sludge pipe is connected between the bottom of the middle deposition pool and the bottom of the oxygen deficiency pool. A return sludge pipe is connected between the bottom of the end deposition pool and the bottom of the anaerobic pool. The overstepping sludge deposited by the middle deposition pool is directly pumped into the oxygen deficiency pool, and the amount of the overstepping sludge is controlled in the range of 10 to 33% of the inflow discharge. The excess sludge is discharged through the sludge pipe and part of the sludge flows into the sludge return pipe and is pumped into the anaerobic pool, and the sludge return flow is controlled in the range of 10 to 40% of the inflow discharge. The device solves the problem of the hard control of the densities of outlet ammonia nitrogen, TN and TP, ensures the outlet water quality to come up to the standard and saves energy consumption.
Description
(1), technical field
This utility model relates to a kind of waste disposal plant, particularly a kind of waste disposal plant that is used to control experiment parameter.
(2), background technology
The body eutrophication that nitrogen, phosphorus excessive emissions cause is one of environmental problem of paying close attention to the most as former government and the public, and the nitrogen, the phosphorus that turn to purpose with the control water eutrophication remove and becomes the main objective of the struggle of various countries' sewage disposal.The nearly all sewage work of China all is faced with same problem at present, be that denitrogenation and dephosphorization removal effect can not reach optimum regime simultaneously, trace it to its cause and be mainly: 1, COD of sewage/TN ratio is lower, and carbon source lacks the restrictive factor that becomes denitrification and dephosphorization; 2, the envrionment conditions of this three quasi-microorganisms physiological habit of nitrifier, denitrifying bacteria and polyP bacteria and requirement has nothing in common with each other, mostly be single mud and sewage treatment system but Sewage Plant adopts, microorganism is the suspension mixed growth, thereby can't guarantee that they can grow in best separately environment simultaneously.These two reasons have finally caused the removal of nitrogen and phosphorus to become two aspects of opposition contradiction, make water outlet ammonia nitrogen, TN and TP concentration be difficult to control and remove not thorough, nitrogenous, phosphorus eutrophication sewage treating efficiency is lower, the treatment time is long, energy consumption is higher, and the sewage denitrification and dephosphorization effect is unstable and compliance rate is lower.In addition, existing single mud and sewage treatment system is not easy to experimental applications and control techniques parameter.
(3), utility model content
The purpose of this utility model will provide a kind of double sludge denitrification dephosphorization experimental installation, solve technical problem nitrogenous, the sewage disposal of phosphorus eutrophication; And the unstable and lower problem of compliance rate of solution sewage denitrification and dephosphorization effect; Also solve the problem that makes things convenient for experimental applications and control techniques parameter.
The technical solution of the utility model: this double sludge denitrification dephosphorization experimental installation is characterized in that:
Connect in proper order by raw water tubes, water tank, pump, anaerobic pond, medium sediment pool, aerobic biologic membrane nitrification tank, anoxic pond, quick aeration tank, final deposition pool, rising pipe;
Anaerobic pond and anoxic pond are built-in with whipping appts;
Be connected with between medium sediment pool bottom and the anoxic pond bottom and surmount sludge pipe;
Between final deposition pool bottom and anaerobic pond bottom, be communicated with reflux sludge tube.
Blow-down pipe is arranged at above-mentioned aerobic biologic membrane nitrification tank bottom.
Blow-down pipe is arranged at bottom, above-mentioned quick aeration tank.
The mechanism of the utility model double sludge denitrification dephosphorization denitrogenation device operation: denitrification dephosphorization (Denitrifyingphosphorus removal) can be called anoxic and inhale phosphorus (Anoxic phosphorus uptake), be meant under the condition of anaerobic/anoxic (anaerobic/anoxic) alternate run, tame out a class with NO
3 --N is as denitrification phosphorus-collecting bacterium (Denitrifying Phosphate-Removal Bacteria, the abbreviation DPB) superiority bacteria spp of final electron acceptor(EA), and they can be with NO
3 -As electron acceptor(EA), utilize internal carbon source (PHB), realize denitrification denitrogenation simultaneously and inhale the phosphorus effect by " carbon is dual-purpose " mode.Broken the theory that denitrogenation dephosphorizing that traditional denitrogenation dephosphorizing mechanism thought must be finished by obligate denitrifying bacteria and obligate polyP bacteria respectively, made dephosphorization and denitrification denitrogenation process realize with same quasi-microorganism, in this treating processes, NO
3 -No longer merely be considered as the damper of dephosphorization process, carry out the denitrifying phosphorus uptake reaction with it as final electron acceptor(EA), compare not only the COD consumption with traditional denitrification dephosphorization technique and can save 50%, the oxygen consumption reduces by 30%, and sludge yield also is expected to reduce 50%.Solved the contradictory relation between denitrogenation and dephosphorization in the traditional technology, inhaled phosphorus and do in order to NO
3 -Finish as electron acceptor(EA), can save oxygen-supplying amount, so the power consumption that drops into is few; Nitrifier is microbial film set growth, denitrification phosphorus-collecting bacterium suspension growth is in another system, both separation have solved the competition contradiction of polyP bacteria and nitrifier in the traditional technology, and this more helps the stable and efficient of dephosphorization, denitrification system, and controllability also is improved; Under the prerequisite that need not extensive mud backflow, just can make water outlet keep lower nitrate concentration; 5. the DPB sludge yield is expected to reduce, and reduces the sludge treatment expense.The utility model is specially adapted to municipal effluent, and especially the southern area municipal effluent denitrogenation dephosphorizing of carbon, nitrogen, phosphorus ratio imbalance is handled; Be fit to the lower sewage disposal of COD/TN ratio; Can be used for teaching research experimental applications and control techniques parameter.
Beneficial effect: the utility model is process object with the sanitary sewage, to surmount mud ratio and returned sluge than being controlled at suitable scope, determined to remove the optimal operating parameter of organism, denitrogenation dephosphorizing process, improve nitrogen in the sewage, phosphorus and organic removal efficient, improved the stability and the controllability of system's operation.Be issued to efficient low consumption in the prerequisite that guarantees effluent quality.Solved problem nitrogenous, the sewage disposal of phosphorus eutrophication; And solved the unstable and lower problem of compliance rate of sewage denitrification and dephosphorization effect; Also solve the water outlet ammonia nitrogen, TN and the unmanageable practical problems of TP concentration that occur in the sewage disposal operational process, strengthened the optimization and the control of denitrification dephosphorization denitrification technology; Particularly solved the problem that makes things convenient for experimental applications and control techniques parameter.
(4), description of drawings
Fig. 1 is the synoptic diagram of the utility model double sludge denitrification dephosphorization experimental installation.
Fig. 2 be surmount mud than ≈ returned sluge than NH in=50% o'clock reaction tank
4 +The change curve of-N.
(5), embodiment
Referring to Fig. 1, this double sludge denitrification dephosphorization experimental installation is by raw water tubes 1, water tank 2, pump 3, anaerobic pond 4, medium sediment pool 5, aerobic biologic membrane nitrification tank 6, anoxic pond 7, aeration tank 8, final deposition pool 9, rising pipe 10 order series connection fast; Anaerobic pond 4 and anoxic pond 7 are built-in with whipping appts; Be connected with between medium sediment pool 5 bottoms and anoxic pond 7 bottoms and surmount sludge pipe 11; Between final deposition pool 9 bottoms and anaerobic pond 4 bottoms, be communicated with reflux sludge tube 12.Aerobic biologic membrane nitrification tank and bottom, quick aeration tank are respectively equipped with aerobic biologic membrane nitrification tank blow-down pipe 13 and quick aeration tank blow-down pipe 14.
The idiographic flow that application the utility model carries out sewage disposal is: former water is introduced into anaerobic pond, and the denitrification phosphorus-collecting bacterium absorbs a large amount of organism at this, and stores in vivo with the form of PHB, discharges a large amount of phosphorus simultaneously.Muddy water is behind the medium sediment pool sharp separation subsequently, and the supernatant liquor that is rich in ammonia nitrogen and phosphorus flows to the aerobic biologic membrane nitrification tank, carries out nitration reaction, simultaneously the also aerobic remaining organism of having degraded.Directly enter anoxic pond and the poly-phosphorus sludge that precipitates has surmounted the biomembrance process nitrification tank, DPB is an electron donor with intravital PHB, the NO that provides with nitrification tank
3 -As electron acceptor(EA), finish denitrification denitrogenation and the effect of excessive suction phosphorus.The rearmounted design of aeration tank fast mainly is to be used for absorbing remaining phosphorus: anoxic pond, if polyP bacteria is incomplete to the absorption of phosphorus as first electron acceptor(EA) with nitric nitrogen, they just can absorb surplus phosphorus fully as second electron acceptor(EA) with oxygen in the quick aeration tank of postposition.
Using device of the present utility model carries out sewage disposal following steps is arranged:
(1), pump is to anaerobic pond from water tank for former water, under stirring, the denitrification phosphorus-collecting bacterium absorbs a large amount of organism at this, and stores in vivo with the form of PHB, discharges a large amount of phosphorus simultaneously;
(2), the muddy water of discharging in the above-mentioned anaerobic pond enters medium sediment pool, through the medium sediment pool sharp separation;
(3), the above-mentioned medium sediment pool supernatant liquor that is rich in ammonia nitrogen and phosphorus of discharging, flow to the aerobic biologic membrane nitrification tank, carry out nitration reaction, simultaneously the also aerobic remaining organism of having degraded;
(4), simultaneously, the poly-phosphorus sludge that above-mentioned medium sediment pool precipitates claims to surmount mud, is directly pumped into anoxic pond, and DPB is an electron donor with intravital PHB, the NO that provides with nitrification tank
3 -As electron acceptor(EA), finish denitrification denitrogenation and the effect of excessive suction phosphorus, when handling sanitary sewage, will surmount in 10～33% scopes that sludge quantity is controlled at flooding velocity;
(5), the above-mentioned aerobic biologic membrane nitrification tank processed water of discharging enters anoxic pond, carries out hypoxia response under stirring;
(6), the processed water of discharging from anoxic pond enters quick aeration tank, is absorbed remaining phosphorus;
(7), the processed water of discharging from quick aeration tank enters final deposition pool, supernatant liquor is discharged from rising pipe, excess sludge is discharged from sludge pipe, part mud branches to mud return line, and be pumped to anaerobic pond, when handling sanitary sewage, with the returned sluge flow control at 10～40% of flooding velocity.
In guaranteeing two sludge systems under the prerequisite of the enough sludge quantities of anoxic pond, surmounting mud should be as far as possible little than the control of (surmounting mud discharge/flooding velocity), enter anoxic pond to prevent to surmount in the mud without nitrated sewage, the optimal control scope that surmount the mud ratio this moment is 10-33%.
Be controlled under the 10-33% prerequisite will surmounting the mud ratio, even water inlet C/N lower (C/N ≈ about 3.09～4.2), return sludge ratio (mud return flow/flooding velocity) is controlled at 26-40%, and system also can reach respectively about 84.2% and 92% the clearance of TN and TP.
When water inlet C/N when being 4.2≤C/N≤9, consider from energy-conservation angle, needn't increase return sludge ratio, promptly the returned sluge ratio can be controlled at 10-33%, this moment, the denitrogenation dephosphorizing effect of system can reach optimum regime simultaneously, and promptly average removal rate reaches 92.7% and 93.09% respectively.
The utility model can be judged the denitrification degree of system by the ORP Changing Pattern of anoxic pond and anaerobic pond, therefore proposes and can control the returned sluge ratio automatically according to the online detection of ORP.
Surmounting mud and returned sluge ratio is one of important operating parameter.Surmount mud discharge and pass through nitrated and directly enter the ammonia-nitrogen content of anoxic pond, finally influence the ammonia nitrogen concentration of system's water outlet than directly determining.In order to reduce the ammonia nitrogen concentration of water outlet as far as possible, the control principle that surmounts mud discharge is exactly under the prerequisite that guarantees anoxic pond capacity mud, reduces its value to greatest extent, and the span of control that the operation practice values can reach is 10-33%.Generally speaking, the big more denitrification percent of reflux ratio is high more; When water inlet C/N ratio be (4.2≤C/N≤9), when carbon source is sufficient, nitric nitrogen concentration is low in the water outlet, consider from energy-conservation angle, needn't increase the mud ratio, this moment can returned sluge with surmount the mud ratio and be set to equivalence, promptly.If but water inlet C/N (C/N ≈ 3.09～4.2) on the low side when denitrification is incomplete, then needs the C/N ratio according to reality, improves the reflux ratio of system neatly.But because the nitric nitrogen that contains enters in the anaerobic pond in a large number in the returned sluge, can suppress anaerobism and put phosphorus reaction, finally influence phosphor-removing effect, so comprehensive nitrogen, both place to go effects of phosphorus can be controlled at 30-40% with the returned sluge ratio.
The utility model is convenient to two sludge system returned sluges and the optimal control that surmounts the mud ratio, can change neatly and these two ratios of adjusting according to influent quality characteristics concentration; Also can utilize online detection simultaneously, hold the degree that the denitrification nitrogen and phosphorus removal biochemical reaction process carries out exactly, regulate the returned sluge ratio in time, thereby improved stability and controllability that nitrogen phosphorus is removed greatly, guarantee that effluent quality is up to standard, save working cost.
EXPERIMENTAL EXAMPLE one: the real life sewage with certain university's dependents' district discharging is former water, the COD of water inlet, ammonia nitrogen and total phosphorus value (COD=201-332mg/L, NH
4 +-N=44.74～68.89, TP=4.95-9.66mg/L).The SRT of poly-phosphorus sludge is 12～14d (not considering the biomembranous SRT of nitrification tank).The DO concentration set point of microbial film nitrification tank is 2～3mg/L, and the DO concentration of back aeration tank is set in about 2mg/L.Flooding velocity is 43.2-48L/d, will surmount mud discharge and be controlled at about 50% of flooding velocity, is the harmony of each reactor mud in the maintenance system, and the returned sluge flow also is controlled at about 50% of flooding velocity.Operation result as shown in Figure 2, from last group data (arrow is represented Fig. 2) as can be seen, when influent ammonium concentration is 52mg/L, the nitrification tank ammonia nitrogen concentration is 3.5mg/L, the ammonia nitrogen concentration of last water outlet is also up to about 10mg/L.Here it is because because higher when surmounting the mud ratio and being controlled at 50% left and right sides, equates that a part of ammonia nitrogen just directly enters anoxic pond without aerobic nitrification, causes the water outlet ammonia nitrogen concentration higher.Therefore being necessary has under the prerequisite of capacity mud in guaranteeing anoxic pond, reduces to surmount mud discharge as far as possible, reduces the ammonia nitrogen concentration of water outlet with this.
EXPERIMENTAL EXAMPLE two: the real life sewage with certain university's dependents' district discharging is former water, adds an amount of tap water dilution or adds glucose, NH
4Cl, KH
2PO
4Reach different COD, ammonia nitrogen and total phosphorus value (COD=290～400mg/L, TN=44-71mg/L, TP=3.78-9.23; This moment COD/TN=4.2-8.6).The SRT of poly-phosphorus sludge is 12～14d (not considering the biomembranous SRT of nitrification tank).The DO concentration set point of microbial film nitrification tank is 2～3mg/L, and the DO concentration of back aeration tank is set in about 2mg/L.Flooding velocity is 43.2-48L/d, and will surmount mud and returned sluge flow is 12.9-14.4L/d, reflux ratio and surmount the mud ratio and be about about 33%.Simultaneously the ORP value of each reactor in the technology is carried out online detection, organic matter degradation and short distance nitration/denitrification situation in the real-time monitoring reaction device, this moment, system can maintain about 93%, 92.70% and 93.09% the average removal rate of COD, TN and TP.
EXPERIMENTAL EXAMPLE three: the real life sewage with certain university's dependents' district discharging is former water, adds an amount of tap water dilution or adds glucose, NH
4Cl, KH
2PO
4Reach different COD, ammonia nitrogen and total phosphorus value (COD=290～400mg/L, TN=44-71mg/L, TP=3.78-9.23; This moment COD/TN=4.2-8.6).The SRT of poly-phosphorus sludge is 12～14d (not considering the biomembranous SRT of nitrification tank).The DO concentration set point of microbial film nitrification tank is 2～3mg/L, and the DO concentration of back aeration tank is set in about 2mg/L.Flooding velocity is 43.2-48L/d, surmounting mud is controlled at about 32%, the I group operation phase is controlled at 32% with returned sluge, the II group operation phase is controlled at 65% with returned sluge, III group operation phase returned sluge is controlled at 100%, and when the returned sluge ratio was respectively 65% and 100%, system's water outlet nitric nitrogen and TP concentration and I stage (reflux ratio is 32%) were more approaching, just TN goes out water concentration and slightly raises, and the rising of TN is caused by ammonia nitrogen concentration substantially.Under water inlet COD/TN ratio was not very low condition of water quality, the rear-mounted denitrification effect was better, and water outlet nitric nitrogen concentration is lower, and it is little for the effect that improves system's denitrification effect to improve reflux ratio.In addition, in debug process, find the easier accumulation that causes the poly-phosphorus sludge of medium sediment pool of the increase of reflux ratio to technology.Therefore, when anoxic pond water outlet nitric nitrogen concentration is relatively lower, consider, needn't increase the return sludge ratio of this technology from energy-conservation angle.
Claims (3)
1, a kind of double sludge denitrification dephosphorization experimental installation is characterized in that:
Connect in proper order by raw water tubes, water tank, pump, anaerobic pond, medium sediment pool, aerobic biologic membrane nitrification tank, anoxic pond, quick aeration tank, final deposition pool, rising pipe;
Anaerobic pond and anoxic pond are built-in with whipping appts;
Be connected with between medium sediment pool bottom and the anoxic pond bottom and surmount sludge pipe;
Between final deposition pool bottom and anaerobic pond bottom, be communicated with reflux sludge tube.
2, double sludge denitrification dephosphorization experimental installation according to claim 1 is characterized in that: blow-down pipe is arranged at above-mentioned aerobic biologic membrane nitrification tank bottom.
3, double sludge denitrification dephosphorization experimental installation according to claim 1 and 2 is characterized in that: blow-down pipe is arranged at bottom, above-mentioned quick aeration tank.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100349810C (en) * | 2005-02-05 | 2007-11-21 | 彭永臻 | AZNdenitrification phosphorus oliminating sewage treatment method and device |
| CN101205100B (en) * | 2007-12-18 | 2010-05-19 | 华南理工大学 | Integral combined process treatment reactor for city sewage |
| CN101786774A (en) * | 2010-03-29 | 2010-07-28 | 重庆大学 | Biological sewage treatment device and method for synchronous nitrogen and phosphorus removal and sludge reduction |
| CN101830603A (en) * | 2010-05-19 | 2010-09-15 | 哈尔滨工业大学深圳研究生院 | System and method for removing phosphorus by three-mud process nitrification and denitrification |
| CN105776770A (en) * | 2016-05-06 | 2016-07-20 | 云南大学 | Sewage deep purifying device with high adaptivity and method thereof |
| CN106007258A (en) * | 2016-07-29 | 2016-10-12 | 东南大学 | Six-box integrated two-sludge denitrifying phosphorus removal system and technology |
| CN107032488A (en) * | 2017-04-24 | 2017-08-11 | 北京工业大学 | A kind of method that municipal sewage short distance nitration is realized by sludge dual reflux AOA techniques |
| CN105776544B (en) * | 2016-05-06 | 2018-06-12 | 云南大学 | A kind of ANSAOAO continuous flow double sludge denitrification advanced nitrogen dephosphorization apparatus and technique based on On-line Control |
| CN110015756A (en) * | 2019-04-11 | 2019-07-16 | 华北水利水电大学 | A kind of denitrification dephosphorization coupled vibrations anoxic MBR device and technique |
| CN110015814A (en) * | 2019-04-23 | 2019-07-16 | 东南大学 | A kind of synchronous device and method for realizing sewage denitrification and dephosphorization and reclamation of phosphorus resource |
| CN110902825A (en) * | 2019-11-29 | 2020-03-24 | 东南大学 | Improved double-sludge dephosphorization and denitrification device and process suitable for plateau town domestic sewage treatment |
| CN114702136A (en) * | 2022-04-19 | 2022-07-05 | 青岛思普润水处理股份有限公司 | AOA coupling efficient autotrophic nitrogen removal water treatment method and system |
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2005
- 2005-02-05 CN CNU2005200019678U patent/CN2767434Y/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100349810C (en) * | 2005-02-05 | 2007-11-21 | 彭永臻 | AZNdenitrification phosphorus oliminating sewage treatment method and device |
| CN101205100B (en) * | 2007-12-18 | 2010-05-19 | 华南理工大学 | Integral combined process treatment reactor for city sewage |
| CN101786774A (en) * | 2010-03-29 | 2010-07-28 | 重庆大学 | Biological sewage treatment device and method for synchronous nitrogen and phosphorus removal and sludge reduction |
| CN101830603A (en) * | 2010-05-19 | 2010-09-15 | 哈尔滨工业大学深圳研究生院 | System and method for removing phosphorus by three-mud process nitrification and denitrification |
| CN101830603B (en) * | 2010-05-19 | 2012-12-19 | 哈尔滨工业大学深圳研究生院 | System and method for removing phosphorus by three-mud process nitrification and denitrification |
| CN105776544B (en) * | 2016-05-06 | 2018-06-12 | 云南大学 | A kind of ANSAOAO continuous flow double sludge denitrification advanced nitrogen dephosphorization apparatus and technique based on On-line Control |
| CN105776770A (en) * | 2016-05-06 | 2016-07-20 | 云南大学 | Sewage deep purifying device with high adaptivity and method thereof |
| CN106007258A (en) * | 2016-07-29 | 2016-10-12 | 东南大学 | Six-box integrated two-sludge denitrifying phosphorus removal system and technology |
| CN107032488A (en) * | 2017-04-24 | 2017-08-11 | 北京工业大学 | A kind of method that municipal sewage short distance nitration is realized by sludge dual reflux AOA techniques |
| CN110015756A (en) * | 2019-04-11 | 2019-07-16 | 华北水利水电大学 | A kind of denitrification dephosphorization coupled vibrations anoxic MBR device and technique |
| CN110015814A (en) * | 2019-04-23 | 2019-07-16 | 东南大学 | A kind of synchronous device and method for realizing sewage denitrification and dephosphorization and reclamation of phosphorus resource |
| CN110015814B (en) * | 2019-04-23 | 2021-06-11 | 东南大学 | Device and method for synchronously realizing nitrogen and phosphorus removal of sewage and phosphorus resource recovery |
| CN110902825A (en) * | 2019-11-29 | 2020-03-24 | 东南大学 | Improved double-sludge dephosphorization and denitrification device and process suitable for plateau town domestic sewage treatment |
| CN110902825B (en) * | 2019-11-29 | 2022-05-13 | 东南大学 | Improved double-sludge dephosphorization and denitrification device and process suitable for plateau town domestic sewage treatment |
| CN114702136A (en) * | 2022-04-19 | 2022-07-05 | 青岛思普润水处理股份有限公司 | AOA coupling efficient autotrophic nitrogen removal water treatment method and system |
| CN114702136B (en) * | 2022-04-19 | 2023-08-22 | 青岛思普润水处理股份有限公司 | AOA coupling efficient autotrophic denitrification water treatment method and system |
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