CN205328702U - Deep aeration equipment in integration oxidation ditch - Google Patents
Deep aeration equipment in integration oxidation ditch Download PDFInfo
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- CN205328702U CN205328702U CN201520978080.8U CN201520978080U CN205328702U CN 205328702 U CN205328702 U CN 205328702U CN 201520978080 U CN201520978080 U CN 201520978080U CN 205328702 U CN205328702 U CN 205328702U
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- aerator
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- oxidation ditch
- deep strata
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Abstract
The utility model discloses a deep aeration equipment in integration oxidation ditch, including the integration oxidation ditch body, in a plurality of deep aerator and underwater propulsor, the integration oxidation ditch is internal to have set gradually anaerobism reaction tank, hypoxia response pond, aerobic reaction pond, sedimentation tank along the sewage flow direction, well deep aerator horizontal installation is apart from aerobic reaction pond 1.3~1.7 meters of bottom of the pool, well deep aerator passes through the aeration supply air duct and is connected with the aeration fan, underwater propulsor installs perpendicularly in the aerobic reaction pond, underwater propulsor's cable passes through the guide arm and is connected with the power. The utility model discloses sewage treatment in -process aeration time has been increased, more effectively flow state in the controlled reaction pond and mixed reaction state to can reduce the aeration by a wide margin and push away the energy consumption that flows, and very big convenience is provided to subsea equipment's maintenance and change to increase the service depth of water, reduced structures area.
Description
Technical field
This utility model relates to sewage treatment area, is specifically related to a kind of integrated oxidation ditch mid-deep strata aerator。
Background technology
Sludge aeration technology is mainly used in the sewage disposal technology in integrated oxidation ditch, it is developed so far and has had considerable breakthrough, but in actual running, still suffer from some puzzlement particular problems in the industry, such as aeration energy consumption is higher, the maintenance and repair of aerator and change difficulty, aerator need to need by arranging outside activated sludge in ditch, after aerator maintenance and repair when changing activated sludge be cultivated again and the problem such as aerator operating cost is high。
Utility model content
For solving the problems referred to above, this utility model provides a kind of integrated oxidation ditch mid-deep strata aerator on the one hand, and its technical scheme is as follows:
A kind of integrated oxidation ditch mid-deep strata aerator, including integrated oxidation ditch body, some mid-deep strata aerators and underwater propeller,
It is disposed with anaerobic reation pool, hypoxia response pond, aerobic reaction pond, sedimentation tank along drainage flow direction in described integrated oxidation ditch body；
Described mid-deep strata aerator is horizontally arranged at from 1.3～1.7 meters of at the bottom of pond, aerobic reaction pond；Described mid-deep strata aerator is connected with Aeration fan by aeration air supply duct；
Described underwater propeller is installed vertically in aerobic reaction pond, and the cable of described underwater propeller is connected with power supply by guide rod。
Further, described mid-deep strata aerator adopts tubular type or platy fine bubble aerator。
Further, connecting and be provided with some electrically operated valves on the aeration air supply duct of described mid-deep strata aerator, described electrically operated valve is connected with robot control system(RCS) circuit。
Compared with prior art, this utility model has the following advantages and effect:
Described mid-deep strata aerator is horizontally arranged at about 1.3～1.7 meters of at the bottom of the pond in aerobic reaction pond, more traditional aerator installation site improves, therefore outlet blast and the shaft power of supporting Aeration fan can be reduced, both being uniformly distributed of dissolved oxygen in aerobic reaction pond had been ensured, the active sludge intermixture between mid-deep strata aerator and bottom of trench can be prevented again to be in the state of anoxia, more oxygen in bubble is made to be utilized by active sludge intermixture, improve the transfer efficiency of oxygen, additionally described mid-deep strata aerator is horizontally arranged at 1.3～1.7 meters of at the bottom of the pond in aerobic reaction pond, reduce the roughness bottom integrated oxidation ditch body and resistance coefficient, also reduce the energy consumption of impeller under water。As the depth of water keeping mid-deep strata aerator top is consistent with conventional integrated oxidation ditch, it is actually the degree of depth relatively adding aerobic reaction pond, reduces floor space and civil engineering amount；Owing to still having the water of about 1.2 meters more than at the bottom of the pond in aerobic reaction pond, between mid-deep strata aerator less than 2 when maintenance, reduce the investment of structural anti-buoyancy and the safety of operation。Its most important advantage also resides in simultaneously, mid-deep strata aerator is horizontally arranged at about 1.5 meters of at the bottom of the pond from aerobic reaction pond, when maintenance and replacing aerator, only need to by integrated oxidation ditch half emptying, mid-deep strata aerator is surfaced, and without activated sludge sewage in ditch is cultivated again after safeguarding, decreases and restart the energy consumption of operation, expense and time, it is no longer necessary to expensive elevated installation, greatly saves operation and maintenance cost。
Accompanying drawing explanation
A kind of integrated oxidation ditch mid-deep strata aerator schematic top plan view of Fig. 1 this utility model embodiment one。
A kind of partial schematic sectional view of the integrated oxidation ditch mid-deep strata aerator of Fig. 2 this utility model embodiment one。
Fig. 3 is the aeration method schematic flow sheet of this utility model embodiment two。
Shown in figure it is:
1. integrated oxidation ditch；
2. mid-deep strata aerator；
3. underwater propeller；
4. aerobic reaction pond；
5. aeration air supply duct；
6. Aeration fan；
7. electrically operated valve；
8. robot control system(RCS)；
9. anaerobic reation pool；
10. hypoxia response pond；
11. sedimentation tank。
Detailed description of the invention:
Below by specific embodiment, the purpose of this utility model is described in further detail, but therefore embodiment of the present utility model is not defined in following example。
Embodiment one
As depicted in figs. 1 and 2, a kind of integrated oxidation ditch mid-deep strata aerator, including integrated oxidation ditch 1, some mid-deep strata aerators 2, underwater propeller 3；
It is disposed with anaerobic reation pool, hypoxia response pond, aerobic reaction pond 4, sedimentation tank 11 along drainage flow direction in described integrated oxidation ditch body 1；
Described mid-deep strata aerator 2 adopts micro-hole aerator, is horizontally arranged at from 1.5 meters of at the bottom of the reaction tank of aerobic reaction pond 4；Described mid-deep strata aerator 2 is connected with Aeration fan 6 by aeration air supply duct 5；Being connected to electrically operated valve 7 on described mid-deep strata aerator, described electrically operated valve 7 is connected with robot control system(RCS) 8。
Described underwater propeller 3 is vertically mounted in aerobic reaction pond 4, and the degree of depth and mid-deep strata aerator 2 match；The cable of described underwater propeller 3 is connected with power supply by guide rod。
The operation principle of the present embodiment is:
Described integrated oxidation ditch body 1 is internal is provided with the difference in functionality district including aerobic reaction pond 4, described mid-deep strata aerator 2 adopts micro-hole aerator, it is horizontally arranged in aerobic reaction pond 4, oxygen is provided for mud by it, described electrically operated valve 7 is connected with robot control system(RCS) 8, can according to the change of actual influent quality, the water yield, adjust the operation quantity of mid-deep strata aerator 2 in biochemical reaction tank flexibly, ensure the balance of oxygen-supplying amount and biochemical reaction oxygen demand, ensure the normal growth of activated sludge and good biological activity, and then guarantee that effluent quality is up to standard；Described underwater propeller 3 is vertically mounted in aerobic reaction pond 4, and it undertakes conveying oxygen and the effect of mixing plug-flow respectively；Direction of advance that the microporous bubble that described mid-deep strata aerator 2 is sent flows along mixed liquor is spiral moves forward and up, so can increase air bubble flow process in aerobic reaction pond 4 and the time of staying, make more oxygen in bubble be utilized by activated sludge, improve the transfer efficiency of oxygen；Underwater propeller 3 makes mixed liquor helical flow forward in aerobic reaction pond 4 simultaneously, both being uniformly distributed of dissolved oxygen in aerobic zone can have been ensured, the mixed liquor between aerator and bottom of trench can be prevented again to be in the state of anoxia, make integrated oxidation ditch aerobic zone, remain close to the reactive state being thoroughly mixed on the whole, and then improve the efficiency of biochemical reaction。
Embodiment two
As it is shown on figure 3, a kind of integrated oxidation ditch mid-deep strata aeration method, including step:
After S1 sewage enters integrated oxidation ditch body 1, first flow into anaerobic reation pool 9, mix and form active sludge intermixture in anaerobic reation pool and carry out dephosphorization treatment；
S2 activated sludge mixing influent hypoxia response pond 10 after dephosphorization treatment carries out denitrogenation processing；
S3 active sludge intermixture after above-mentioned dephosphorization denitrification processes enters in aerobic reaction pond 4；
Air is sent in mid-deep strata aerator 2 through aeration air supply duct 5 by Aeration fan 6 described in S4, enters in the active sludge intermixture in aerobic reaction pond 4 with the form of microporous bubble；
Microporous bubble described in S5 is under the effect of described underwater propeller 3, direction of advance screw along active sludge intermixture flowing, there is provided aerobic biochemical reaction required oxygen for active sludge intermixture, microorganism in active sludge intermixture is in the presence of oxygen, organic pollution therein and ammonia nitrogen are processed, complete aeration process, finally flow into sedimentation tank 11 and carry out precipitation process。
Specifically, in actual moving process, for oxygen equilibrium in regulating reservoir, air is sent in mid-deep strata aerator 2 through aeration air supply duct 5 by described Aeration fan 6, while entering in the active sludge intermixture in aerobic reaction pond 4 with the form of microporous bubble, further comprise the steps of:
Robot control system(RCS) 8 described in S4.1 is turned on and off part electrically operated valve 7 according to the change of oxygen capacity in aerobic reaction pond 4, adjusts the operation quantity of mid-deep strata aerator 2 with this, ensures the balance of oxygen-supplying amount and biochemical reaction oxygen demand。
The operation principle of the present embodiment is:
Sewage flows into each functional areas successively, mixes in the active sludge intermixture in each functional areas and process after entering integrated oxidation ditch body 1；Described active sludge intermixture initially enters in anaerobic reation pool 9, under the effect of anaerobe, active sludge intermixture is carried out dephosphorization treatment；Active sludge intermixture after dephosphorization treatment flows in hypoxia response pond 10, under the effect of anoxic bacteria, active sludge intermixture is carried out denitrogenation processing, and the active sludge intermixture after above-mentioned dephosphorization denitrification processes enters in aerobic reaction pond 4；Air is sent in mid-deep strata aerator 2 through aeration air supply duct 5 by described Aeration fan 6, enters in the active sludge intermixture in aerobic reaction pond 4 with the form of microporous bubble；Under the effect of described microporous bubble propeller 3 under water, direction of advance screw along active sludge intermixture flowing, there is provided aerobic biochemical reaction required oxygen for it, microorganism in active sludge intermixture is in the presence of oxygen, organic pollution therein and ammonia nitrogen are processed, completes aeration process。While above-mentioned variety of processes, described robot control system(RCS) 8 is turned on and off part electrically operated valve 7 according to the change of oxygen capacity in aerobic reaction pond 4, adjusts the operation quantity of mid-deep strata aerator 2 with this, ensures the balance of oxygen-supplying amount and biochemical reaction oxygen demand。
Embodiment three
Comparing embodiment one, the present embodiment is in series with multiple aerobic reaction pond 4, is provided with multiple mid-deep strata aerator 2 in each aerobic reaction pond 4 along drainage flow direction,
The integrated oxidation ditch body 1 of the present embodiment, the functional areas including aerobic reaction pond 4 it are provided with in it, such as anaerobic reation pool, hypoxia response pond, sedimentation tank etc., after sewage enters integrated oxidation ditch body 1, flow into each functional areas successively, mix in the active sludge intermixture in each functional areas and process；Described active sludge intermixture initially enters in anaerobic reation pool, under the effect of anaerobe, active sludge intermixture is carried out dephosphorization treatment；Active sludge intermixture after dephosphorization treatment flows in hypoxia response pond, under the effect of anoxic bacteria, active sludge intermixture is carried out denitrogenation processing, and the active sludge intermixture after above-mentioned dephosphorization denitrification processes enters in aerobic reaction pond 4；Air is sent in mid-deep strata aerator 2 through aeration air supply duct 5 by described Aeration fan 6, enters in the active sludge intermixture in aerobic reaction pond 4 with the form of microporous bubble；Under the effect of described microporous bubble propeller 3 under water, direction of advance screw along active sludge intermixture flowing, there is provided aerobic biochemical reaction required oxygen for it, microorganism in active sludge intermixture is in the presence of oxygen, organic pollution therein and ammonia nitrogen are processed, completes aeration process。While above-mentioned variety of processes, described robot control system(RCS) 8 is turned on and off part electrically operated valve 7 according to the change of oxygen capacity in aerobic reaction pond 4, adjusts the operation quantity of mid-deep strata aerator 2 with this, ensures the balance of oxygen-supplying amount and biochemical reaction oxygen demand。
Through comparing, the situation of the energy consumption that the present embodiment is saved compared to existing technology is as follows:
Prior art Design Treatment scale 100,000 m3/ d, adopts Norway HCR (efficient biochemical) two stage treatment technique, and original design effluent quality is COD≤85mg/L, BOD5≤ 20mg/L, SS≤20mg/L。Owing to environmental administration requires that Chinese effluent standard to reach the requirement of one-level B in " urban wastewater treatment firm pollutant emission standard " (GB18918-2002), original HCR processes system and there is COD, ammonia nitrogen, total nitrogen, total phosphorus can not meet new Effluent criteria requirement；There is also the problem that system fluctuation of service, energy consumption are higher, medicine consumption is higher simultaneously。
The present embodiment realizes sewage disposal plant effluent water quality and reaches the requirement of New emission standard, and play the effects such as reduction operation energy consumption, operating cost and management difficulty, treatment effect stably reaches the requirement of one-level B standard indices in " urban wastewater treatment firm pollutant emission standard " (GB18918-2002), before comparing transformation, energy consumption, medicine consume cost savings 796.6 ten thousand yuan/year, energy-conservation, joint medicine remarkably productive, concrete correction data is as follows:
Energy-saving effect contrast table before and after modification scheme and transformation
The aluminium polychlorid dosing contrast table saved before and after transformation
The PAM dosing contrast table saved before and after transformation
It can be seen that the present embodiment is while reaching Its Relevant Technology Standards, energy-saving and cost-reducing obvious, stable, easy to maintenance, greatly save operation and maintenance cost, there is market using value widely。
It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and when without departing substantially from spirit of the present utility model or basic feature, it is possible to realize this utility model in other specific forms。Therefore, no matter from which point, embodiment all should be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims rather than described above, it is intended that all changes in the implication of the equivalency dropping on claim and scope included in this utility model。Any accompanying drawing labelling in claim should be considered as the claim that restriction is involved。
In addition, it is to be understood that, although this specification is been described by according to embodiment, but not each embodiment only comprises an independent technical scheme, this narrating mode of description is only for clarity sake, description should be made as a whole by those skilled in the art, and the technical scheme in each embodiment through appropriately combined, can also form other embodiments that it will be appreciated by those skilled in the art that。
Claims (3)
1. an integrated oxidation ditch mid-deep strata aerator, it is characterised in that: include integrated oxidation ditch body (1), some mid-deep strata aerators (2) and underwater propeller (3),
It is disposed with anaerobic reation pool, hypoxia response pond, aerobic reaction pond (4), sedimentation tank (11) along drainage flow direction in described integrated oxidation ditch body (1)；
Described mid-deep strata aerator (2) is horizontally arranged at from 1.3～1.7 meters of at the bottom of aerobic reaction pond (4) pond；Described mid-deep strata aerator (2) is connected with Aeration fan (6) by aeration air supply duct (5)；
Described underwater propeller (3) is installed vertically in aerobic reaction pond (4), and the cable of described underwater propeller (3) is connected with power supply by guide rod。
2. integrated oxidation ditch mid-deep strata aerator according to claim 1, it is characterised in that: described mid-deep strata aerator (2) adopts tubular type or platy fine bubble aerator。
3. integrated oxidation ditch mid-deep strata aerator according to claim 1, it is characterized in that: connect and the aeration air supply duct (5) of described mid-deep strata aerator (2) is provided with some electrically operated valves (7), described electrically operated valve (7) is connected with robot control system(RCS) (8) circuit, and robot control system(RCS) (8) is turned on and off part electrically operated valve (7) for the change according to aerobic reaction pond (4) interior oxygen capacity。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520978080.8U CN205328702U (en) | 2015-11-30 | 2015-11-30 | Deep aeration equipment in integration oxidation ditch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520978080.8U CN205328702U (en) | 2015-11-30 | 2015-11-30 | Deep aeration equipment in integration oxidation ditch |
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| CN205328702U true CN205328702U (en) | 2016-06-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105347488A (en) * | 2015-11-30 | 2016-02-24 | 华南理工大学 | Device and method for deep aeration in integrated oxidation ditch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105347488A (en) * | 2015-11-30 | 2016-02-24 | 华南理工大学 | Device and method for deep aeration in integrated oxidation ditch |
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