CN201729739U - High-efficient sewage treatment system capable of realizing reasonable distribution of carbon sources - Google Patents
High-efficient sewage treatment system capable of realizing reasonable distribution of carbon sources Download PDFInfo
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- CN201729739U CN201729739U CN2010201382231U CN201020138223U CN201729739U CN 201729739 U CN201729739 U CN 201729739U CN 2010201382231 U CN2010201382231 U CN 2010201382231U CN 201020138223 U CN201020138223 U CN 201020138223U CN 201729739 U CN201729739 U CN 201729739U
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- thruster
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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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Abstract
A high-efficient sewage treatment system capable of realizing reasonable distribution of carbon sources comprises a closed annular ditch body, and is characterized in that an aerator and a thruster are arranged in the closed annular ditch body, and one or a plurality of water inlet points are arranged on the ditch body. Oxygenation of the sewage treatment system is completed via the micropore aerator arranged at the bottom or a surface aeration device, and pushing, stirring and mixing of sewage in the total ditch are completed via the underwater thruster. According to water inlet quality and treatment requirements, the high-efficient sewage treatment system can be operated as a common aeration tank to realize organic matter removal and synchronous nitrification and denitrification, can also be operated in a single-water-inlet or double-water-inlet denitrification and dephosphorization AAO mode, and further can be operated in a single-level AO mode or a multilevel AO mode of reasonably distributing or optimizing and utilizing raw water carbon source water inlet via different points. The high-efficient sewage treatment system has the advantages of easily coordinated relationship between oxygen supply and expulsive force, flexible operation, high controllability, low energy consumption and wide application.
Description
Technical field:
The utility model belongs to sewage treatment area, is specifically related to a kind of wastewater efficient treatment system of properly distributed carbon source.
Background technology:
Existing " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) proposed higher requirement to the discharging of urban wastewater treatment firm water outlet nitrogen phosphorus.Present town sewage treatment process is all carried out around biological carbon and phosphorous removal, use more be AO technology, the denitrogenation dephosphorizing of denitrogenation or dephosphorization AAO technology, have the improvement SBR technology of denitrogenation dephosphorizing function and before oxidation ditch, set up anaerobic pond, before the ditch body (interior) set up the oxygen-starved area and the improved oxidation ditch technology that forms with denitrogenation dephosphorizing function, as A
2O oxidation ditch etc.The quality of biological carbon and phosphorous removal effect, important one side is relevant with water quality, and carbon source particularly is relevant with the characteristics of technology self, operation controllability etc. on the other hand.The most of municipal effluent of China all is to hang down C/N than water quality, and the carbon source deficiency causes the biological carbon and phosphorous removal effect bad, and total nitrogen is difficult to up to standard.Simultaneously technology its flexibility and operation control are improper as the aerobic zone aeration, and excessive aeration also can increase the weight of the carbon source deficiency to denitrifying influence etc.Therefore, the properly distributed carbon source is fully optimized the carbon source of utilizing in the raw waste water, and raising technology its flexibility and controllability, can carry out efficient, stable control to the biological carbon and phosphorous removal process according to Inlet and outlet water condition and requirement, be a direction of present denitrification dephosphorization technique development.
AO, AAO process spent water treatment system, biological unit all is the rectangle form pool type, because its fluidised form characteristics, shock resistance and buffering ability do not have this annular ditch treatment system of oxidation ditch strong on the whole, particularly handle higher town sewage of trade effluent ratio or the high town sewage of high-concentration hardly-degradable trade effluent ratio, can influence operating performance because of shock resistance and buffered unstable, thereby influence the denitrogenation dephosphorizing of system; While is for the aerobe cellular system of these two kinds of technologies, the inner aerator that oxygenation generally only is set, main microorganism decarburization and the nitrated requisite oxygen supplied with, this system often oxygen supply and mix between exist and be difficult for the contradiction coordinated, particularly hypoxemia and blended contradiction, and for the lighter this situation of influent quality, the controllability of its operational process is lower.For keeping the mixing fully of muddy water in the pond, often need bigger aeration rate, the dissolved oxygen that the possible excessive meeting of aeration of one side is brought into because of backflow influences the denitrogenation dephosphorizing effect, also may cause the microorganism flco of system destroyed, aeration can not change with the influent quality water yield on the other hand, causes energy wastage.
This annular ditch of oxidation ditch pond type has special hydromechanics fluidised form, the characteristics of existing complete mixing reactor, the characteristics that plug flow reactor is arranged again, because the hydraulic characteristic of " closed circulation flow " of its uniqueness and long mud age and lower organic loading, make its than AO, AAO process system strong shock resistance, be beneficial to the removal, stable of hardly degraded organic substance.But the oxidation channel wastewater treatment system of denitrogenation dephosphorizing all is the single-point water inlet at present, does not consider properly distributed and optimize the carbon source of utilizing in the raw waste water that denitrogenation dephosphorizing efficient has much room for improvement according to influent quality.Resemble the wider Carrousel oxidation ditch of present application, opel oxidation ditch etc. simultaneously plug-flow and mixing equipment are not set separately, and realize oxygenation, plug-flow and the mixing of water body in the ditch by surface aeration equipment, often there is the contradiction that is difficult for coordination on the one hand between oxygen supply and plug-flow, the stirring, move dumb, controllability is lower, may there be the big problem of sludgd deposition and aeration rate, influences the denitrogenation dephosphorizing effect; For to make air reach the lower floor of oxidation ditch mixed solution and the mixing of full ditch mixed solution, required energy consumption is higher on the other hand, has the energy wastage problem.
Summary of the invention:
The purpose of this utility model just is to overcome above-mentioned the deficiencies in the prior art, and provide a kind of wastewater efficient treatment system of properly distributed carbon source, this system have strong buffering and impact resistance, flexible operation, controllability height, suitability wide, can under hypoxemia, realize synchronous nitration denitrification denitrogenation according to the requirement of influent quality and denitrogenation dephosphorizing.
As above design, the technical solution of the utility model is: a kind of wastewater efficient treatment system of properly distributed carbon source, comprise closed annular ditch main body, it is characterized in that: in the annular ditch main body of closure, aerator and thruster are set, on main body, are provided with one or more water entries.
Above-mentioned aerator is surface aeration equipment or the micro-hole aerator that is arranged in the bottom.
The annular ditch main body of above-mentioned closure can be single ditch formula, also can be many channel-types, both can connect, also can be in parallel.
The annular ditch main body of above-mentioned closure is shape of a hoof ditch type, Carrousel oxidation ditch type.
The annular ditch body interior of above-mentioned closure is arranged as the AAO pattern, promptly is arranged as anaerobic zone, oxygen-starved area, three zones of aerobic zone, establishes water entry and thruster in the anaerobic zone, only establishes thruster in the oxygen-starved area or also establishes aerator, establishes aerator and thruster in the aerobic zone.
Above-mentioned water entry also can be located at anaerobic zone, oxygen-starved area respectively.
The annular ditch body interior of above-mentioned closure is arranged as single-stage AO pattern, promptly is arranged as oxygen-starved area or anaerobic zone, two zones of aerobic zone, only establishes thruster in oxygen-starved area or the anaerobic zone or also establishes aerator, establishes aerator and thruster in the aerobic zone.
The annular ditch body interior of above-mentioned closure is arranged as multistage AO pattern.
The annular ditch body interior of above-mentioned closure is arranged as three grades of AO patterns, i.e. three oxygen-starved areas or anaerobic zone and three aerobic zones, and oxygen-starved area or anaerobic zone and an aerobic zone are formed one group; In each oxygen-starved area or anaerobic zone, be respectively equipped with water entry, and in each oxygen-starved area or anaerobic zone, only establish thruster or also can establish aerator, establish aerator and thruster at each aerobic zone.
The utility model adopts the bottom micro-hole aerator, as micro porous aeration head or surface aeration equipment, as aeration rotary brush, rotary aeration disc etc., utilize gas blower to provide air to micro-hole aerator, come the aeration of regulating and controlling Sewage treatment systems, supply with dissolved oxygen, guarantee to remove requisite oxygens such as organism, nitrated and microbial life activity, underwater propeller is set is aided with and realizes plug-flow, mix function that it is required to satisfy Sewage treatment systems fluidised form and safe operation and adopt.Simultaneously according to Inlet and outlet water condition and requirement etc., Sewage treatment systems can be by the operation of common aeration tank, main removal organism and operation enforcement part synchronous nitration and denitrification realization denitrogenation under hypoxemia, also the entire treatment system can be arranged to flexibly the AO district or the AAO district of different ratios, and the multistage AO that can be arranged to branch water inlet properly distributed carbon source, the A district can only establish underwater propeller, also but aerator and underwater propeller all are provided with, the O district can only establish aerator, also but aerator and underwater propeller all are provided with, and the aerator of same district layout density can be not different in the ditch.
The utility model is realized through the following steps:
1) sewage of hanging oneself after the processing such as grid, settling pit pre-treatment facility enters in the treatment system annular ditch by one or several different water entry;
2) be arranged on the surface aeration equipment of annular ditch or be arranged in the bottom micro-hole aerator offer microbiological deterioration organism and nitrated and microorganism self vital movement requisite oxygen, in the process of aerator release air and in air and the muddy water mixed solution contact process, its power plays certain plug-flow, mixes function simultaneously;
3) the sewage propelling of thruster and aerator under water, under the stirring action, keep certain flow rate, according to aerator in the annular ditch and angle of rake arrangement form, sewage is along passing through different districts successively in the annular ditch working cycle, as hypoxemia district or oxygen-starved area, aerobic zone, the oxygen-starved area, aerobic zone etc., organism in working cycle in the sewage constantly is degraded by microorganisms or denitrifying bacteria denitrogenation or release the phosphorus bacterium to release phosphorus used, nitrogen in the sewage, the phosphorus nutrition thing is except that required by microbial assimilation, nitrogen is by the nitrification of nitrifier, the denitrification of denitrifying bacteria or synchronous nitration and denitrification effect are removed, phosphorus is transferred to phosphorus in the mud by the suction phosphorus of releasing phosphorus and aerobic bacteria of anerobe, realizes removing by excess sludge discharge;
4) sewage is at annular ditch treatment system internal recycle, and after certain residence time, the sewage that has removed carbon, nitrogen, phosphorus is discharged to solid-liquid separation unit with the mixed solution of mud and carries out mud-water separation.
The utlity model has following advantage and positively effect:
1, handiness is big, controllability is high, realizes denitrogenation dephosphorizing better.
The setting of the setting of oxygen replenishing equipment, plug-flow mixing equipment still is that the operation of entire sewage treatment system all has greater flexibility and controllability, can control efficiently and stably denitrogenation dephosphorizing.
1. can be according to influent quality and processing requirements, aerator zone and underwater propeller zone are set flexibly, or the two has the zone concurrently, and the different zones aerator arranges that density, underwater propeller arrange that density can difference.
2. can along suitable the setting or operation aerator and thruster of different zones of annular ditch, can realize different functions according to influent quality, external environment condition and processing requirements.
When requiring denitrogenation dephosphorizing, according to influent quality, carbon source situation, the annular ditch treatment system can be set to a bit or anaerobic zone, oxygen-starved area, the aerobic zone of 2 water inlets, or oxygen-starved area, aerobic zone, or different zones such as the multi-stage anaerobic district of multipoint water feeding, aerobic zone, anaerobic zone, oxygen-starved area only are provided with or only move thruster, or the operation of oxygen-starved area hypoxemia, the sewage different zones of flowing through successively in ditch realizes denitrogenation dephosphorizing.
When not requiring that denitrogenation dephosphorizing or denitrogenation are less demanding, the full annular ditch can be arranged aerator by the operation of common aeration tank in the ditch, and essential regions is arranged underwater propeller, with propelling and the mixing requirement of satisfying current.The interior hypoxemia of pressing of ditch moves, and reaches energy-saving and cost-reducing purpose, also can realize certain synchronous nitration and denitrification effect simultaneously when water-inlet carbon source suits than abundant and condition.
3. can make the aeration rate of aerator and angle of rake promotion, mixing ability consistent with oxygen requirement, the influent quality water yield and the technology oneself requirement of microorganism.Only establish the oxidation channel wastewater treatment system of surface aeration equipment relatively, avoided that aeration not exclusively causes nitrated not exclusively and organic matter degradation not thoroughly and the sludgd deposition phenomenon, and be phenomenons such as the excessive denitrogenation dephosphorizing decrease in efficiency that causes of aeration, energy wastage and the system's microorganism flco that advance mixing to cause be destructurized.
2, suitability is wide.
For municipal effluent, aerator and thruster reasonable Arrangement, but annular ditch rationalization partition also can be aided with simultaneously the branch water inlet, and the synchronous nitration and denitrification reaction can take place for properly distributed carbon source and make full use of former water carbon source, realizes denitrogenation, cuts down the consumption of energy; Sewage for complicated water quality, as trade effluent particularly used water difficult to degradate account for a certain proportion of sewage, this annular ditch impact resistance is stronger, can be set to many channel-type series connection according to the water quality situation, and different raceway grooves and same raceway groove can be arranged as the difference in functionality district, tackles the impact of complicated water quality and improve the denitrogenation dephosphorizing processing power.
3, the power decoration form that adopts aerator and underwater propeller to combine, the oxygenation function is separated with mixing functions, can cut down the consumption of energy to a certain extent, and is energy-conservation.
Description of drawings:
Fig. 1 is the synoptic diagram of the utility model by the operation of common aeration tank.
Fig. 2 is the synoptic diagram of the utility model by the AAO mode operation.
Fig. 3 is the synoptic diagram of the utility model by single-stage AO mode operation.
Fig. 4 is the synoptic diagram of 3 water inlets of the utility model by three grades of AO mode operations.
Embodiment:
Embodiment 1: as shown in Figure 1: a kind of wastewater efficient treatment system of properly distributed carbon source, uniform aerator 2 and thruster 3 in the annular ditch main body 1 of closure are provided with a water entry 4 on main body.Organism is mainly removed by this system.
Embodiment 2: as shown in Figure 2: a kind of wastewater efficient treatment system of properly distributed carbon source, in the annular ditch main body 1 of closure, be arranged as anaerobic zone 5, oxygen-starved area 6,7 three different zones of aerobic zone, press the AAO mode operation of denitrogenation dephosphorizing, removing organic while denitrogenation dephosphorizing.Water entry 8 can be located at anaerobic zone, also can establish water entry 8 and water entry 9 respectively in anaerobic zone, oxygen-starved area according to influent quality situation and denitrogenation dephosphorizing requirement.Anaerobic zone is established thruster 10, and the oxygen-starved area is only established thruster 11 or also established aerator, and aerobic zone is established aerator 12 and thruster 13.
Embodiment 3: as shown in Figure 3: a kind of wastewater efficient treatment system of properly distributed carbon source, in the annular ditch main body 1 of closure, be arranged as scarce (detesting) oxygen district 14,15 two different zones of aerobic zone, press the AO mode operation, removing organic while denitrogenation or dephosphorization.The oxygen-starved area is only established thruster 16 or also can be established aerator, and aerobic zone is established aerator 17 and thruster 18.
Embodiment 4: as shown in Figure 4: a kind of wastewater efficient treatment system of properly distributed carbon source, in the annular ditch main body 1 of closure, be arranged as three grades of AO mode operations, whole ditch is arranged as six zones, promptly lacks (detesting) oxygen district 19-aerobic zone 20, lacks (detesting) oxygen district 21-aerobic zone 22, lacks (detesting) oxygen district 23-aerobic zone 24.Water entry is made as three 25,26,27, and water inlet lacks (detesting) oxygen district from three respectively and enters system.Lack (detesting) oxygen district and only establish thruster 28 or also can establish aerator, aerobic zone is established aerator 29 and thruster 30.
Above-mentioned aerator is surface aeration equipment or the micro-hole aerator that is arranged in the bottom.
The annular ditch main body of above-mentioned closure can be single ditch formula, also can be many channel-types, both can connect, also can be in parallel; Or be other ditch type, as shape of a hoof ditch type, Carrousel oxidation ditch type etc.
Claims (9)
1. the wastewater efficient treatment system of a properly distributed carbon source comprises closed annular ditch main body, it is characterized in that: in the annular ditch main body of closure aerator and thruster are set, are provided with one or more water entries on main body.
2. the wastewater efficient treatment system of a kind of properly distributed carbon source according to claim 1 is characterized in that: above-mentioned aerator is surface aeration equipment or the micro-hole aerator that is arranged in the bottom.
3. the wastewater efficient treatment system of a kind of properly distributed carbon source according to claim 1 is characterized in that: the annular ditch main body of above-mentioned closure can be single ditch formula, also can be many channel-types, both can connect, also can be in parallel.
4. according to the wastewater efficient treatment system of claim 1 or 3 described a kind of properly distributed carbon sources, it is characterized in that: the annular ditch main body of above-mentioned closure is shape of a hoof ditch type, Carrousel oxidation ditch type.
5. the wastewater efficient treatment system of a kind of properly distributed carbon source according to claim 1, it is characterized in that: the annular ditch body interior of above-mentioned closure is arranged as the AAO pattern, promptly be arranged as anaerobic zone, oxygen-starved area, three zones of aerobic zone, establish water entry and thruster in the anaerobic zone, only establish thruster in the oxygen-starved area or also establish aerator, establish aerator and thruster in the aerobic zone.
6. the wastewater efficient treatment system of a kind of properly distributed carbon source according to claim 1, it is characterized in that: the annular ditch body interior of above-mentioned closure is arranged as single-stage AO pattern, promptly be arranged as oxygen-starved area or anaerobic zone, two zones of aerobic zone, only establish thruster in oxygen-starved area or the anaerobic zone or also establish aerator, establish aerator and thruster in the aerobic zone.
7. the wastewater efficient treatment system of a kind of properly distributed carbon source according to claim 1 is characterized in that: the annular ditch body interior of above-mentioned closure is arranged as multistage AO pattern.
8. the wastewater efficient treatment system of a kind of properly distributed carbon source according to claim 5 is characterized in that: above-mentioned water entry also can be located at anaerobic zone, oxygen-starved area respectively.
9. the wastewater efficient treatment system of a kind of properly distributed carbon source according to claim 7, it is characterized in that: the annular ditch body interior of above-mentioned closure is arranged as three grades of AO patterns, i.e. three oxygen-starved areas or anaerobic zone and three aerobic zones, oxygen-starved area or anaerobic zone and an aerobic zone are formed one group; In each oxygen-starved area or anaerobic zone, be respectively equipped with water entry, and in each oxygen-starved area or anaerobic zone, only establish thruster or also can establish aerator, establish aerator and thruster at each aerobic zone.
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| CN2010201382231U CN201729739U (en) | 2010-03-23 | 2010-03-23 | High-efficient sewage treatment system capable of realizing reasonable distribution of carbon sources |
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| CN2010201382231U CN201729739U (en) | 2010-03-23 | 2010-03-23 | High-efficient sewage treatment system capable of realizing reasonable distribution of carbon sources |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102424502A (en) * | 2011-10-25 | 2012-04-25 | 南开大学 | Plug flow sewage treatment and reinforced nitrogen removal method |
| CN103755024A (en) * | 2013-12-13 | 2014-04-30 | 盐城工学院 | Rotary adjustable anaerobic-anoxic-aerobic biochemical reactor |
| CN103951059A (en) * | 2014-04-08 | 2014-07-30 | 河海大学 | Multi-cycle composite bioreactor and process thereof |
| CN104003517B (en) * | 2014-06-20 | 2016-04-27 | 必德普(北京)环保科技有限公司 | A kind of biological multiplication sewage water denitrification treatment system and sewage water denitrification handling method |
| CN107746108A (en) * | 2017-11-23 | 2018-03-02 | 天津市华博水务有限公司 | A kind of oxidation ditch biological treatment system and method |
| US9957178B2 (en) | 2014-06-20 | 2018-05-01 | Bdp Enviro Tech Limited | BDP sewage denitrogenation treatment system and method for sewage denitrogenation treatment |
| CN109534598A (en) * | 2018-12-06 | 2019-03-29 | 上海清潺汇环境科技有限公司 | A kind of novel printing-dyeing waste water treatment process |
| CN116040801A (en) * | 2023-02-22 | 2023-05-02 | 中节能环保投资发展(江西)有限公司 | Nitrogen-rich sewage treatment system and treatment method |
-
2010
- 2010-03-23 CN CN2010201382231U patent/CN201729739U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102424502A (en) * | 2011-10-25 | 2012-04-25 | 南开大学 | Plug flow sewage treatment and reinforced nitrogen removal method |
| CN103755024A (en) * | 2013-12-13 | 2014-04-30 | 盐城工学院 | Rotary adjustable anaerobic-anoxic-aerobic biochemical reactor |
| CN103755024B (en) * | 2013-12-13 | 2015-09-30 | 盐城工学院 | A kind of rotary type adjustable type anaerobic-anoxic-oxic biochemical reactor |
| CN103951059A (en) * | 2014-04-08 | 2014-07-30 | 河海大学 | Multi-cycle composite bioreactor and process thereof |
| CN103951059B (en) * | 2014-04-08 | 2015-04-15 | 河海大学 | Multi-cycle composite bioreactor and process thereof |
| CN104003517B (en) * | 2014-06-20 | 2016-04-27 | 必德普(北京)环保科技有限公司 | A kind of biological multiplication sewage water denitrification treatment system and sewage water denitrification handling method |
| US9957178B2 (en) | 2014-06-20 | 2018-05-01 | Bdp Enviro Tech Limited | BDP sewage denitrogenation treatment system and method for sewage denitrogenation treatment |
| CN107746108A (en) * | 2017-11-23 | 2018-03-02 | 天津市华博水务有限公司 | A kind of oxidation ditch biological treatment system and method |
| CN109534598A (en) * | 2018-12-06 | 2019-03-29 | 上海清潺汇环境科技有限公司 | A kind of novel printing-dyeing waste water treatment process |
| CN116040801A (en) * | 2023-02-22 | 2023-05-02 | 中节能环保投资发展(江西)有限公司 | Nitrogen-rich sewage treatment system and treatment method |
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Granted publication date: 20110202 |
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