CN200953208Y - A/O oxidation groove technology educational testing device - Google Patents
A/O oxidation groove technology educational testing device Download PDFInfo
- Publication number
- CN200953208Y CN200953208Y CN 200620133942 CN200620133942U CN200953208Y CN 200953208 Y CN200953208 Y CN 200953208Y CN 200620133942 CN200620133942 CN 200620133942 CN 200620133942 U CN200620133942 U CN 200620133942U CN 200953208 Y CN200953208 Y CN 200953208Y
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- oxidation ditch
- pond
- oxidation
- anaerobic zone
- oxygen
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- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 101
- 230000003647 oxidation Effects 0.000 title claims abstract description 99
- 238000012360 testing method Methods 0.000 title claims abstract description 22
- 238000005516 engineering process Methods 0.000 title description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000010802 sludge Substances 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 claims abstract description 35
- 238000005273 aeration Methods 0.000 claims abstract description 30
- 238000007599 discharging Methods 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 9
- 229910052760 oxygen Inorganic materials 0.000 abstract description 9
- 239000001301 oxygen Substances 0.000 abstract description 9
- 238000010992 reflux Methods 0.000 abstract description 7
- 239000010865 sewage Substances 0.000 abstract description 7
- 238000006213 oxygenation reaction Methods 0.000 abstract description 3
- 241000894006 Bacteria Species 0.000 description 13
- 230000000694 effects Effects 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 8
- 229920000388 Polyphosphate Polymers 0.000 description 8
- 229920000037 Polyproline Polymers 0.000 description 8
- 229910052698 phosphorus Inorganic materials 0.000 description 8
- 239000011574 phosphorus Substances 0.000 description 8
- 239000001205 polyphosphate Substances 0.000 description 8
- 235000011176 polyphosphates Nutrition 0.000 description 8
- 238000006396 nitration reaction Methods 0.000 description 7
- 238000004065 wastewater treatment Methods 0.000 description 7
- 238000005276 aerator Methods 0.000 description 6
- 230000014759 maintenance of location Effects 0.000 description 6
- 238000004088 simulation Methods 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 6
- 238000011160 research Methods 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 229910019142 PO4 Inorganic materials 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000001727 in vivo Methods 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 3
- 239000010452 phosphate Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 241001148470 aerobic bacillus Species 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 2
- 238000010009 beating Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000011020 pilot scale process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 241000108664 Nitrobacteria Species 0.000 description 1
- 241000727649 Orbales Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005112 continuous flow technique Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000012018 process simulation test Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Images
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- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
An A <2> virgule O oxidation ditch technique teaching test equipment is provided, which relates to an activated sludge method sewage treatment reactor used in teaching test field. Due to the surface aeration and large capacity of oxidation ditch technique, the flow velocity and flow state can hardly be mimicked in a laboratory. The utility model is composed of an oxidation body, which comprises a water tank (1), an anaerobic zone (3), an anoxic zone (4) and an oxidation ditch (5), and a secondary settling tank (12), which is connected with the oxidation body in series. Inside the body of reactor, an agitator (10) is provided; in the oxidation ditch (5), an aeration head (9) is provided; at the bottom of the secondary settling tank (12), a sludge outlet connects to the anaerobic zone (3) and anoxic zone (4) through a refluxing sludge pump (13), and another sludge outlet connects to the residue sludge pump (14). The utility model adopts the methods of blast aeration and plugflow aeration with an agitator, to produce a certain velocity of flow and a certain gradient of dissolved oxygen, and thereby settles the issue of mimicking the oxidation process in which both oxygenation and the circulation flow of activated sludge inside the reactor are realized.
Description
Technical field
A kind of A of the utility model
2/ O oxidation ditch process teaching test device relates to a kind of teaching test device of construction work water supply and drainage, particularly a kind of activated sludge process sewage-treating reactor teaching test device.
Background technology
Oxidation ditch (oxidation ditch) has another name called continuous circulated aeration tank (Continuous loop reactor), is a kind of distortion of activated sludge process.Oxidation ditch sewage treatment technology the 1950's by the success of Dutch sanitary engineering Research Institute.Present widely used oxidation ditch type comprises: Pasveer oxidation ditch, Carrousel oxidation ditch, Orbal oxidation ditch, T type oxidation ditch, DE type oxidation ditch and integrated oxidation ditch.Therefore these oxidation ditches differ from one another owing to there are differences in structure and operation.
Oxidation ditch has special hydraulics fluidised form, and the characteristics of existing complete mixing reactor have the characteristics of plug flow reactor again, have tangible dissolved oxygen concentration gradient in the ditch.The oxidation ditch section is a rectangle or trapezoidal, and it is oval that flat shape mostly is, and the depth of water is generally 2～5m in the ditch, and current average velocity is 0.3m/s in the ditch.Oxidation ditch aeration and mixing has surface aeration machine, aeration rotary brush or rotating disk, jet aerator, catheter type aerator and promotes tubular type aerator etc., and what be used in recent years also has pusher under water.
Oxidation ditch process is stable because of it, convenient operating maintenance, and effluent quality is good, and has denitrogenation dephosphorizing ability preferably, becomes one of the most practical technology both at home and abroad.
But, on the one hand because oxidation ditch process often adopts surface aeration, the aerator that adopts is generally aeration rotary brush, aeration turn plate, inverse-umbrella type aerator etc., these aerators provide kinetic energy to make drainage flow simultaneously air be squeezed into the effect of playing oxygenation in the water by rotating to sewage, and are difficult to simulate these aeration modes in the laboratory; Because the oxidation ditch volume is bigger, and its velocity flow pattern is difficult to simulate in the laboratory: flow velocity is too little, and mud precipitates easily, form the dead band on the other hand, cause the wastewater treatment useful volume to reduce, the fermentation of part sludge anaerobic influences effluent quality; Flow velocity is too big, is difficult to simulate the dissolved oxygen DO gradient of actual oxidation ditch.Therefore, people do not find suitable method and apparatus in this technology of laboratory simulation as yet at present.
The utility model content
The purpose of this utility model provides a kind of teaching test device of continuous stream activated sludge process, solves the problem of continuous stream oxidation ditch process velocity flow pattern simulation.
A kind of A
2/ O oxidation ditch process teaching test device is characterized in that, mainly is in series by water tank 1, oxidation ditch main body, second pond 12 orders; The oxidation ditch main body is followed successively by anaerobic zone 3 along water (flow) direction, oxygen-starved area 4 and oxidation ditch 5, the anaerobic zone 3 of water tank 1 and oxidation ditch main body is connected by intake pump 2, the oxidation ditch 5 of oxidation ditch main body is connected by overflow weir 11 with second pond 12, anaerobic zone 3 and 4 inside, oxygen-starved area are respectively equipped with stirrer 10, anaerobic zone 3 is connected with second pond 12 by a return sludge pump 13 separately with oxygen-starved area 4, oxidation ditch 5 makes current form the current oxidation ditch that repeatedly changes direction by the furrow bank that is provided with in it, oxidation ditch 5 inside are provided with stirrer 10 in the position of flow direction-changing, oxidation ditch 5 inside also are provided with a plurality of aeration heads 9, each aeration head 9 is connected with air compressor 6 with oxidation ditch 5 air outside flowmeters 7 by aeration tube 8, the outer wall of oxidation ditch 5 is provided with highly different sample taps, second pond 12 is center water inlet peripheral effluent radical sedimentation basin, second pond 12 pool walls are provided with highly different sample taps, second pond 12 tops are provided with the triangle effluent weir, second pond 12 bottoms are provided with 2 mud discharging mouths, one of them mud discharging mouth connects return sludge pump 13, and another mud discharging mouth connects the residual sludge pump 14 of getting rid of excess sludge.
Be provided with movable plate between described anaerobic zone 3 and the oxygen-starved area 4, plate places different position between anaerobic zone 3 and the oxygen-starved area 4, can adjust the volume ratio of anaerobic zone 3 and oxygen-starved area 4.
Described overflow weir 11 is connected to form by overflow weir crest of weir 15 and overflow weir vertical tube 16, the useful volume that the quantity of adjustment overflow weir vertical tube 16 can be regulated main reactor oxidation ditch 5.
Each reactor of the present utility model is transparent material and makes, and reactor is transparent, and internal structure and water flow dynamic display easily, helps imparting knowledge to students and test is viewed and emulated.
The utility model A
2/ O oxidation ditch process teaching test device has following operating procedure:
1) active sludge that contains anaerobism polyP bacteria, denitrifying bacterium and nitrifier is added in the oxidation ditch main body, will carry out the domestication and the cultivation of bacterial classification;
2) after Jiang Yuanshui packs in the water tank 1, start intake pump 2 and the sludge reflux pump 13 that is connected anaerobic zone 3, former water and returned sluge are entered in the anaerobic zone 3 with 1: 0.3 ratio, start the stirrer 10 in the anaerobic zone 3, former water and returned sluge are fully mixed under beating action, hydraulic retention after 30～45 minutes draining enter oxygen-starved area 4;
In anaerobic zone 3, the NO that carries in the returned sluge
3 -Be reduced, the polyP bacteria in the active sludge absorbs a large amount of easily biodegradable organicses at this, and stores in vivo with the form of PHB, discharges a large amount of phosphate simultaneously;
3) after the muddy water of discharging in the anaerobic zone 3 enters oxygen-starved area 4, start the sludge reflux pump 13 that connects oxygen-starved area 4, make former water that enters anaerobic zone 3 and the returned sluge that enters oxygen-starved area 4 keep 1: 0.7 ratio, start the stirrer 10 in the oxygen-starved area 4, the muddy water and the returned sluge of being discharged by anaerobic zone 3 are fully mixed under the effect of stirring, hydraulic retention after 45～60 minutes draining enter oxidation ditch 5;
In oxygen-starved area 4, the NO that carries in the returned sluge
3 -Be reduced under the effect of denitrifying bacterium, total nitrogen is cut down;
4) after the muddy water of being discharged by oxygen-starved area 4 enters in the oxidation ditch 5, start air compressor 6, making it provides oxygen by air flowmeter 7 and aeration tube 8 for aeration head 9, and the stirrer 10 in the startup oxidation ditch 5, the current that promote in the oxidation ditch 5 circulate, behind the hydraulic retention 15～25 hours, handle water and enter second pond 12 by gravity drainage through overflow weir 11;
Under the effect of aerobic bacteria, in oxidation ditch 5, most COD is utilized degraded, NH
4 +Be oxidized to NO
3 -, polyP bacteria absorbs phosphorus at this; Exist dissolved oxygen DO (DO) gradient in the oxidation ditch 5, along with water (flow) direction, DO is by dropping to below the 0.1mg/l more than near the 2.0mg/L the aeration head, formed macroscopical preferably aerobic-anaerobic environment, lower in addition flow velocity makes and forms bigger active sludge flco in the oxidation ditch, inside and outside flco, form the aerobic-anaerobic environment of microcosmic, both macro and micro is aerobic-and anaerobic environment all is to build good synchronous nitration and denitrification atmosphere, therefore can produce synchronous nitration and denitrification effect preferably in oxidation ditch;
5) processed water that overflows from oxidation ditch 5 enters second pond 12 and carries out mud-water separation, supernatant is discharged from the water delivering orifice at second pond 12 tops, excess sludge is by residual sludge pump 14 discharge systems, and returned sluge is back to anaerobic zone and oxygen-starved area respectively in 3: 7 ratio.
The utility model device volume is bigger, near actual, is the pilot scale model, helps carrying out scientific research; Volume, flow, parameters such as hydraulic detention time can be adjusted as required; Technology advanced person is the first-selected technology of at present most sewage treatment plant.The utility model also is applicable to important process such as A/O, the A in the modern wastewater treatment
2/ O technology, the utility model can be integrated in kinds of processes a device and carry out simulation test, can be applicable to the teaching practice of kinds of processes.
The technical solution adopted in the utility model comprises a cover reactor and corresponding water circuit system and air-channel system; Specifically be exactly: adopt stirrer to stir plug-flow in the position of flow direction-changing, utilize air compressor to carry out oxygenation simultaneously for aeration head provides oxygen to carry out aeration mode, make the interior existing certain flow rate of oxidation ditch that certain dissolved oxygen DO gradient be arranged again, well solved the problem of oxidation ditch process fluidised form and aeration experiment chamber simulation.
The utility model is process object with the city domestic sewage, has both had the anaerobic-aerobic environment of oxidation ditch both macro and micro, has realized the synchronous nitration and denitrification biological denitrificaion, has integrated anaerobism, anoxic and aerobic three's advantage again, realizes high-efficiency biological nitrogen and phosphorus removal.The problem of nitrogenous, the phosphorus eutrophication wastewater treatment that solves has also solved sewage denitrification and dephosphorization efficient instability and the low problem of compliance rate, also solve the unmanageable practical problems of water outlet ammonia nitrogen, total nitrogen and total phosphorus concentration that occurs in the wastewater treatment operational process, strengthened denitrifying optimization of oxidation trench technology synchronous nitration and control; Solved the problem of convenience test application and control technology parameter.
The utility model has not only been realized the continuous operation of oxidation ditch process continuous flow reactor, solved the problem of oxidation ditch process simulation and teaching test difficulty, also by the continuous operation of reactor, make the student according to the oxidation ditch process simulation test, the detail knowledge oxidation ditch process is from water inlet, anaerobic zone, oxygen-starved area and oxidation ditch aerobic zone, second pond, draining continuous flow process whole process, testing result by the diverse location sample tap deeply is familiar with anaerobism, anoxic and aerobic difference with get in touch.
Description of drawings
Fig. 1 the utility model A2/O oxidation ditch process teaching test device synoptic diagram;
Among the figure: 1-water tank, 2-intake pump, 3-anaerobic zone, 4-oxygen-starved area, 5-oxidation ditch, 6-air compressor, 7-air flowmeter, 8-aeration tube, 9-aeration head, 10-stirrer, 11-overflow weir, 12-second pond, 13-return sludge pump, 14-residual sludge pump;
Fig. 2 oxidation ditch main body side view;
15-overflow weir crest of weir, 16-overflow weir vertical tube, 17-rising pipe, 18-oxidation ditch sample tap among the figure
Fig. 3 second pond synoptic diagram;
Among the figure: 19-second pond water inlet pipe, 20-central tube, 21-second pond effluent weir, 22-second pond rising pipe, 23-returned sluge mouth, 24-excess sludge mouth, 25-second pond sample tap.
Embodiment
Adopt transparent organic glass to make the utility model A
2Each reactor of/O oxidation ditch process teaching test device is connected each reactor referring to each accompanying drawing, i.e. water tank 1, oxidation ditch main body (anaerobic zone 3, oxygen-starved area 4, oxidation ditch 5), second pond 12 order series connection; Water tank is linked to each other by intake pump 1 with the oxidation ditch main body is middle, the oxidation ditch main body is connected with pipeline by overflow weir 11 with second pond, pump is not established in the centre, rely on flow by gravity, second pond 12 links to each other by a return sludge pump 13 with oxygen-starved area 4 separately with anaerobic zone 3, and excess sludge is by residual sludge pump 14 discharge systems.Be provided with movable plate between anaerobic zone 3 and the oxygen-starved area 4, plate places different position between anaerobic zone 3 and the oxygen-starved area 4, can adjust the volume ratio of anaerobic zone 3 and oxygen-starved area 4, overflow weir 11 is connected to form by the detachable vertical tube of 3 joints, the useful volume that the quantity of adjustment vertical tube can be regulated main reactor oxidation ditch 5, second pond 12 are center water inlet peripheral effluent radical sedimentation basin.
Using the idiographic flow that the utility model carries out wastewater treatment is: former water is introduced into anaerobic zone 3, and the polyP bacteria in the returned sluge absorbs a large amount of easily organism of degraded at this, and stores in vivo with the form of PHB, discharges a large amount of phosphate simultaneously.Subsequently in oxygen-starved area 4 be rich in NO in a large number
3 -Returned sluge mix, denitrifying bacterium carries out anti-nitration reaction at this.Subsequently in oxidation ditch 5 by blast aeration, organism obtain the degraded, ammonia nitrogen is NO by oxidation by nitrobacteria
3 -, polyP bacteria absorbs phosphorus at this, and the phosphorus that falls in the liquid phase is absorbed in the body, is transferred to solid phase from liquid phase, by discharging excess sludge phosphorus is discharged system.
Using device of the present utility model carries out wastewater treatment following steps is arranged:
1) active sludge that contains anaerobism polyP bacteria, denitrifying bacterium and nitrifier is added in the oxidation ditch main body, will carry out the domestication and the cultivation of bacterial classification;
2) after Jiang Yuanshui packs in the water tank 1, start intake pump 2 and the sludge reflux pump 13 that is connected anaerobic zone 3, former water and returned sluge are entered in the anaerobic zone 3 with 1: 0.3 ratio, start the stirrer 10 in the anaerobic zone 3, former water and returned sluge are fully mixed under beating action, hydraulic retention after 30 minutes draining enter oxygen-starved area 4;
In anaerobic zone 3, the NO that carries in the returned sluge
3 -Be reduced, the polyP bacteria in the active sludge absorbs a large amount of easily biodegradable organicses at this, and stores in vivo with the form of PHB, discharges a large amount of phosphate simultaneously;
3) after the muddy water of discharging in the anaerobic zone 3 enters oxygen-starved area 4, start the sludge reflux pump 13 that connects oxygen-starved area 4, make former water that enters anaerobic zone 3 and the returned sluge that enters oxygen-starved area 4 keep 1: 0.7 ratio, start the stirrer 10 in the oxygen-starved area 4, the muddy water and the returned sluge of being discharged by anaerobic zone 3 are fully mixed under the effect of stirring, hydraulic retention after 60 minutes draining enter oxidation ditch 5;
In oxygen-starved area 4, the NO that carries in the returned sluge
3 -Be reduced under the effect of denitrifying bacterium, total nitrogen is cut down;
4) after the muddy water of being discharged by oxygen-starved area 4 enters in the oxidation ditch 5, start air compressor 6, making it provides oxygen by air flowmeter 7 and aeration tube 8 for aeration head 9, and the stirrer 10 in the startup oxidation ditch 5, the current that promote in the oxidation ditch 5 circulate, behind the hydraulic retention 20 hours, handle water and enter second pond 12 by gravity drainage through overflow weir 11;
Under the effect of aerobic bacteria, in oxidation ditch 5, most COD is utilized degraded, NH
4 +Be oxidized to NO
3 -, polyP bacteria absorbs phosphorus at this; Exist dissolved oxygen DO (DO) gradient in the oxidation ditch 5, along with water (flow) direction, DO is by dropping to below the 0.1mg/l more than near the 2.0mg/L the aeration head, formed macroscopical preferably aerobic-anaerobic environment, lower in addition flow velocity makes and forms bigger active sludge flco in the oxidation ditch, inside and outside flco, form the aerobic-anaerobic environment of microcosmic, both macro and micro is aerobic-and anaerobic environment all is to build good synchronous nitration and denitrification atmosphere, therefore can produce synchronous nitration and denitrification effect preferably in oxidation ditch;
5) processed water that overflows from oxidation ditch 5 enters second pond 12 and carries out mud-water separation, supernatant is discharged from the water delivering orifice at second pond 12 tops, excess sludge is by residual sludge pump 14 discharge systems, and returned sluge is back to anaerobic zone and oxygen-starved area respectively in 3: 7 ratio.
The utility model reflux ratio (ratio of returned sluge total flow and flow of inlet water) is controlled at 70～150%, is set to 100% usually.
The utility model is by changing amount of inlet water and main reactor useful volume control hydraulic detention time, and the oxidation ditch effluent weir is made up of 3 joint vertical tubes, according to the useful volume of the quantity regulating main reactor of vertical tube.Every joint vertical tube length is 5cm, and the available depth that three vertical tubes can make the oxidation ditch main reactor is at 35cm, three height change of 40cm and 45cm, thus can change the useful volume of reactor.
The utility model device volume is bigger, near actual, is the pilot scale model, helps carrying out scientific research; Volume, flow, parameters such as hydraulic detention time can be adjusted as required; Technology advanced person is the first-selected technology of at present most sewage treatment plant.
The utility model also is applicable to important process such as A/O, the A in the modern wastewater treatment
2/ O technology.The oxidation ditch of this technology is anaerobic zone (Anaerobic)-oxygen-starved area (Anoxic) of aerobic zone (Oxic) and front, forms A jointly
2/ O technology has A
2The characteristics of/O technology are so can directly carry out A
2The teaching and scientific research test of/O technology.Plate between reactor anaerobism and the anoxic is removed, increase reflux ratio, then this reactor can carry out the research of anaerobic-aerobic (A/O) process spent water treatment of simulated.The utility model can be integrated in kinds of processes a device and carry out simulation test, can be applicable to the teaching practice of kinds of processes.
Claims (3)
1. A
2/ O oxidation ditch process teaching test device is characterized in that, mainly is in series by water tank (1), oxidation ditch main body, second pond (12) order; The oxidation ditch main body is followed successively by anaerobic zone (3), oxygen-starved area (4) and oxidation ditch (5), the anaerobic zone (3) of water tank (1) and oxidation ditch main body is connected by intake pump (2), the oxidation ditch of oxidation ditch main body (5) is connected by overflow weir (11) with second pond (12), anaerobic zone (3) and inside, oxygen-starved area (4) are respectively equipped with stirrer (10), anaerobic zone (3) is connected with second pond (12) by a return sludge pump (13) separately with oxygen-starved area (4), the inner furrow bank that makes current change direction that is provided with of oxidation ditch (5), and be provided with stirrer (10) in the position of flow direction-changing, oxidation ditch (5) inside also is provided with aeration head (9), each aeration head (9) is connected with air compressor (6) with oxidation ditch (5) air outside flowmeter (7) by aeration tube (8), the outer wall of oxidation ditch (5) is provided with sample tap, second pond (12) is center water inlet peripheral effluent radical sedimentation basin, second pond (12) pool wall is provided with sample tap, second pond (12) top is provided with effluent weir, second pond (12) bottom is provided with 2 mud discharging mouths, one of them mud discharging mouth connects return sludge pump (13), and another mud discharging mouth connects the residual sludge pump (14) of getting rid of excess sludge.
2. a kind of A according to claim 1
2/ O oxidation ditch process teaching test device is characterized in that, is provided with movable plate between described anaerobic zone (3) and oxygen-starved area (4).
3. a kind of A according to claim 1
2/ O oxidation ditch process teaching test device is characterized in that, described overflow weir (11) is connected to form by overflow weir crest of weir (15) and overflow weir vertical tube (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620133942 CN200953208Y (en) | 2006-09-29 | 2006-09-29 | A/O oxidation groove technology educational testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620133942 CN200953208Y (en) | 2006-09-29 | 2006-09-29 | A/O oxidation groove technology educational testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200953208Y true CN200953208Y (en) | 2007-09-26 |
Family
ID=38811510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620133942 Expired - Lifetime CN200953208Y (en) | 2006-09-29 | 2006-09-29 | A/O oxidation groove technology educational testing device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100572302C (en) * | 2007-12-11 | 2009-12-23 | 江苏凌志环保有限公司 | The dephosphorization denitrogenation integrated A of ORBAL oxidation ditch-related type 2The O/ inversion A 2O technology |
| CN101205100B (en) * | 2007-12-18 | 2010-05-19 | 华南理工大学 | Integral combined process treatment reactor for city sewage |
| CN102815790A (en) * | 2012-09-19 | 2012-12-12 | 陕西科技大学 | Simulation device and method for oxidation ditch technique |
| CN106745741A (en) * | 2016-12-26 | 2017-05-31 | 天津城建大学 | The anaerobic oxidation ditch and its operating method of intensified anti-nitrated denitrogenation dephosphorizing |
| CN110498503A (en) * | 2019-09-10 | 2019-11-26 | 湖北理工学院 | A kind of applied MBR sewage treatment instruments used for education of wisdom |
| CN110577278A (en) * | 2019-07-04 | 2019-12-17 | 广东省环境保护工程研究设计院有限公司 | method and medium for predicting spatial distribution of dissolved oxygen concentration of oxidation ditch pool type AAO (anaerobic-anoxic-oxic) process |
-
2006
- 2006-09-29 CN CN 200620133942 patent/CN200953208Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100572302C (en) * | 2007-12-11 | 2009-12-23 | 江苏凌志环保有限公司 | The dephosphorization denitrogenation integrated A of ORBAL oxidation ditch-related type 2The O/ inversion A 2O technology |
| CN101205100B (en) * | 2007-12-18 | 2010-05-19 | 华南理工大学 | Integral combined process treatment reactor for city sewage |
| CN102815790A (en) * | 2012-09-19 | 2012-12-12 | 陕西科技大学 | Simulation device and method for oxidation ditch technique |
| CN106745741A (en) * | 2016-12-26 | 2017-05-31 | 天津城建大学 | The anaerobic oxidation ditch and its operating method of intensified anti-nitrated denitrogenation dephosphorizing |
| CN110577278A (en) * | 2019-07-04 | 2019-12-17 | 广东省环境保护工程研究设计院有限公司 | method and medium for predicting spatial distribution of dissolved oxygen concentration of oxidation ditch pool type AAO (anaerobic-anoxic-oxic) process |
| CN110577278B (en) * | 2019-07-04 | 2022-05-10 | 广东省环境保护工程研究设计院有限公司 | Method and medium for predicting spatial distribution of dissolved oxygen concentration of oxidation ditch pool type AAO (anaerobic-anoxic-oxic) process |
| CN110498503A (en) * | 2019-09-10 | 2019-11-26 | 湖北理工学院 | A kind of applied MBR sewage treatment instruments used for education of wisdom |
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