CN102897904A - Activated sludge reaction system - Google Patents
Activated sludge reaction system Download PDFInfo
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- CN102897904A CN102897904A CN2012103650731A CN201210365073A CN102897904A CN 102897904 A CN102897904 A CN 102897904A CN 2012103650731 A CN2012103650731 A CN 2012103650731A CN 201210365073 A CN201210365073 A CN 201210365073A CN 102897904 A CN102897904 A CN 102897904A
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- displacement tank
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- 239000010802 sludge Substances 0.000 title claims abstract description 64
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 130
- 238000006073 displacement reaction Methods 0.000 claims description 148
- 239000010865 sewage Substances 0.000 claims description 42
- 238000000034 method Methods 0.000 claims description 15
- 238000007667 floating Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 238000005265 energy consumption Methods 0.000 abstract description 14
- 239000007789 gas Substances 0.000 description 6
- 238000005273 aeration Methods 0.000 description 5
- 238000010992 reflux Methods 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 238000005842 biochemical reaction Methods 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 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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- Activated Sludge Processes (AREA)
Abstract
The invention relates to an activated sludge reaction system which comprises a reactor and a replacement device connected with the reactor, wherein the replacement device comprises a replacement tank which is basically parallel to the high pressure area of the reactor, and a water inlet valve and a water outlet valve which are communicated with the replacement tank; the replacement device also comprises an exhaust valve arranged on the top of the replacement tank; a first circulating pipeline and a second circulating pipeline are also arranged; the replacement tank is communicated with the reactor respectively by virtue of the first circulating pipeline and the second circulating pipeline; the first circulating pipeline is provided with a first circulating water valve, and the second circulating pipeline is provided with a second circulating water valve; and the first circulating pipeline or the second circulating pipeline is provided with a flow push device. The activated sludge reaction system can be used for replacing the inflow water and outflow water of the rector by the replacement device, so that the total energy consumption is lower than the water inlet energy consumption of a reactor barrel.
Description
Technical field
The present invention relates to field of waste water treatment, specifically a kind of activated sludge reaction system.
Background technology
Activated sludge process is a kind of aerobic biological process for treating that utilizes the microorganism flco to process waste water, and the active sludge ratio juris is to utilize aerobic microbiological in the water under aerobic conditions organism to be adsorbed and consume, thereby removes organic pollutant.The Wastewater Treated by Activated Sludge Process system is comprised of aeration tank, aerating apparatus, settling bowl and sludge reflux equipment basically, in actual motion, sewage at first is mixed into the aeration tank with the active sludge that settling tank refluxes, under the aeration effect of aerating apparatus, sewage fully contacts with active sludge, organism in the waste water is adsorbed by active sludge, and is decomposed by the metabolism of the institute of the microbial population in the active sludge, thereby has reduced organic content in the water.
Aeration tank in the activated sludge process is a biochemical reaction device, the kind of activated sludge reactor is numerous, in the prior art, in order to improve the processing efficiency of sewage, it is larger that the height of activated sludge reactor arranges usually, generally greater than 30m, but the shortcoming that existence is set like this is, because reactor is arranged on more than the ground usually, when the reactor cylinder height is higher, if water-in is arranged on the top of reactor shell, pump lift is larger when then water inlet being pumped in the described reactor shell, the hydraulic pressure that overcomes is higher, thereby causes energy consumption higher, even reduce the height of water-in, water-in is arranged on the middle and lower part of reactor shell, also can cause water inlet hydraulic pressure constantly to promote owing to the increase along with the water yield in the reactor shell, also can cause energy consumption higher.
In order to reduce the height of activated sludge reactor, the adding pressure type activated sludge reactor has appearred in the prior art, such as Chinese science and technology document " pressurized vessel Wastewater Treated by Activated Sludge Process dining room sanitary sewage " (environmental engineering, the 2nd phase of the 21st volume April in 2003, a kind of activated sludge reaction device that takes up room less is disclosed the 16-17 page or leaf), be provided with pressurization active sludge tank and air compressor machine in this device, when operation, utilize described air compressor machine to described pressurization active sludge pot bottom aeration, and control sludge tank internal pressure is 0.15-1.2Mpa, this device is by improving the pressure in the sludge pipe, thereby so that described sludge tank in mixed solution be in pressurized environment, Effective Raise the dissolving oxygen concentration.Because the shallow-layer mixed solution in the described sludge tank also is in pressurized state, has higher dissolved oxygen concentration, therefore this device does not need to arrange larger height, but owing to being in pressurized state in this pressurization activated sludge reactor, when in described activated sludge reactor, sending water, the hydraulic pressure of water inlet is also still higher, thereby causes energy consumption higher.
Summary of the invention
Technical problem to be solved by this invention is owing to the water feeding pressure that is arranged on ground activated sludge reactor in the prior art is larger, and cause into the higher problem of water energy consumption, and then provide a kind of activated sludge reaction system that can effectively reduce activated sludge reactor water inlet energy consumption.
The technical scheme of the activated sludge reaction system described in the present invention is:
A kind of activated sludge reaction system comprises:
Reactor and the displacement apparatus that is connected setting with described reactor;
Wherein said displacement apparatus comprises:
Displacement tank, the high pressure area of described displacement tank and described reactor is in the position of basic horizontal;
Be communicated with described displacement tank and be provided with for the water intaking valve of untreated sewage being sent into described displacement tank and be used for emitting the outlet valve of described displacement tank liquid, be provided with vent valve at the top of described displacement tank;
Be communicated with described displacement tank and be provided with the first circulating line and the second circulating line, described displacement tank is connected with described reactor by described the first circulating line and the second circulating line respectively, be provided with the first circulating-water valve at described the first circulating line, be provided with the second circulating-water valve at described the second circulating line;
Be provided with plug flow device at described cocycle pipeline or lower circulating line.
Top in described displacement tank is provided with mud valve.
Described displacement tank comprises cylindrical tube and is connected respectively the conical shell that arranges with two end faces of described cylindrical tube, described two conical shells are along shrinking gradually away from the direction of described cylindrical tube, and described the first circulating line and described the second circulating line are connected with the serrated end of described two conical shells respectively.
Supporting being provided with overlapped displacement apparatus more on the reactor.
Described plug flow device is the impeller that is arranged in described the first circulating line or the second circulating line.
Described reactor is the closed reactor.
In described reactor, be provided with agitator.
The operation method of described activated sludge reaction system may further comprise the steps:
(1) opens described vent valve, close described the first circulating-water valve, the second circulating-water valve and outlet valve, open described water intaking valve, untreated sewage is sent into described displacement tank;
(2) after described untreated sewage is filled described displacement tank, close described water intaking valve and vent valve, open described the first circulating-water valve and the second circulating-water valve, open described plug flow device, raw sewerage in the water outlet after processing in the described reactor shell and the described displacement tank is replaced;
(3) after untreated sewage all enters described reactor in described displacement tank, close described the first circulating-water valve, the second circulating-water valve, open described vent valve and outlet valve, water outlet after the described processing is emitted,, and then untreated sewage is sent into described displacement tank carry out the next round displacement.
In described step (3), after untreated sewage all enters described reactor in described displacement tank, close described the first circulating-water valve, the second circulating-water valve, open first described vent valve, the gas in the described displacement tank floats, and drives the mud floating, after realizing the separating of water outlet and mud, open described outlet valve again, the water outlet after separating is emitted, remaining mud still is trapped in the described displacement tank;
After water outlet after to be separated is emitted, close described outlet valve, open described water intaking valve, untreated sewage is sent into described displacement tank mix with described mud.
Also open described mud valve when in described step (3), opening described vent valve, by described mud valve discharge section mud.
Supporting being provided with overlapped displacement apparatus more on the reactor, and described many cover displacement apparatus are replaced in turn.
Technique scheme of the present invention has the following advantages compared to existing technology:
(1) the activated sludge reaction system described in the present invention, be communicated with described displacement tank and be provided with for the water intaking valve of untreated sewage being sent into described displacement tank and be used for emitting the outlet valve of described displacement tank liquid, be provided with vent valve at the top of described displacement tank; Be communicated with described displacement tank and be provided with the first circulating line and the second circulating line, described displacement tank is connected with described reactor by described the first circulating line and the second circulating line respectively, be provided with the first circulating-water valve at described the first circulating line, be provided with the second circulating-water valve at described the second circulating line; Be provided with plug flow device at described the first circulating line or the second circulating line.Displacement apparatus described in the present invention is at first opened described vent valve when actual motion, close described the first circulating-water valve, the second circulating-water valve and outlet valve, opens described water intaking valve, and untreated sewage is sent into described displacement tank; Then close described water intaking valve and vent valve, open described the first circulating-water valve and the second circulating-water valve, open described plug flow device, raw sewerage in the water outlet after processing in the described reactor shell and the described displacement tank is replaced; After untreated sewage all enters described reactor in described displacement tank, close described the first circulating-water valve, the second circulating-water valve, open again described vent valve and outlet valve, water outlet after the described processing is emitted, and then untreated sewage is sent into described displacement tank carry out the next round displacement.The present invention is in the position of basic horizontal by the high pressure area that described displacement tank and described reactor are set, the high pressure area of wherein said reactor " be that pressure is greater than the zone of 0.1Mpa; and therefore when described reactor is normal pressure reactor; the bottom basic horizontal setting of described displacement tank and described reactor and the height of described displacement tank will be lower than the height of described reactor, the required energy consumption of intaking in the described displacement tank is lower than direct energy consumption of intaking in the described reactor shell; When described reactor is the closed pressurized reactor, because described reactor pressure is larger, and the displacement tank among the present invention can realize normal pressure water inlet, and therefore the required energy consumption of water inlet is lower than directly the energy consumption of intaking in the described reactor shell equally in the described displacement tank; Displacement tank described in the present invention, after water enters in the described displacement tank, open described the first circulating-water valve and the second circulating-water valve, the hydraulic pressure at described plug flow device two ends keeps balance, this moment, described plug flow device only need to overcome the displacement between the raw sewerage in water outlet after the resistance of ducting of liquid is processed in can realization response device cylindrical shell and the described displacement tank, this process energy consumption is extremely low, therefore advance the displacement of water and water outlet by the displacement apparatus described in the present invention is set, its energy consumption will be lower than the water inlet energy consumption of reactor in the prior art.
Simultaneously, activated sludge reaction of the present invention system, by described vent valve is set, after untreated sewage all enters described reactor in the described displacement tank, close described the first circulating-water valve, the second circulating-water valve, by opening first described vent valve, gas in the described displacement tank is floated, drive mud floating, realization sewage separates with mud, and then open described outlet valve, sewage after the separation is emitted, and mud still is trapped in the described displacement tank and mixes with the untreated sewage of sending into of a new round, thereby so that described displacement tank has played the effect of second pond, need not additionally to arrange again second pond and sludge refluxing apparatus, saved the power of sludge reflux.The high pressure area pressure of reactor described in the present invention is greater than 0.1Mpa, under this stress level, the dissolving oxygen concentration is higher in the water outlet after processing in the reactor, after water outlet after processing in the reactor enters described displacement tank, open described vent valve, so that described displacement tank is connected with ambient atmosphere, the pressure recovery in the described displacement tank is to atmospheric pressure state, thereby a large amount of gases that cause dissolving in the described displacement tank float, and are enough to drive the mud floating.
(2) the activated sludge reaction system described in the invention, top in described displacement tank also is provided with mud valve, by described mud valve is set, gas in described displacement tank floats, when driving the mud floating in the water outlet, open described mud valve, can discharge section mud, realize the renewal of mud.
(3) the activated sludge reaction system described in the invention, described displacement tank is set to be comprised cylindrical tube and is connected the conical shell of putting with two end faces of described cylindrical tube respectively, described two conical shells are along shrinking gradually away from the direction of described cylindrical tube, and described the first circulating line and described the second circulating line are connected with the serrated end of described two conical shells respectively.The advantage of setting is like this, and there is not the dead angle in the displacement tank of above-mentioned shape, and it is comparatively thorough that the displacement between untreated sewage and the reactor water outlet can be carried out.
(4) the activated sludge reaction system described in the invention, supporting being provided with overlapped displacement apparatus more on a reactor; The advantage of this setup is, in actual motion, replaces in turn by described many cover displacement apparatus, can guarantee the continuity of reactor water inlet and water outlet, realizes the operation scheme of continuity activated sludge reactor.
(5) the activated sludge reaction system described in the invention is provided with agitator in described reactor, by described agitator is set, can so that the water inlet that displacement enters in the described reactor mixes, be conducive to the carrying out of activated sludge reaction.
Description of drawings
For content of the present invention is more likely to be clearly understood, below in conjunction with the drawings and specific embodiments, the technical scheme described in the present invention is done further detailed elaboration.
The structural representation of activated sludge reaction of the present invention system as shown in Figure 1;
The structural representation that is provided with the activated sludge reaction system of mud valve of the present invention as shown in Figure 2;
The structural representation that is provided with the activated sludge reaction system of many cover displacement apparatus of the present invention as shown in Figure 3;
Wherein, Reference numeral is:
The 1-reactor; The 2-displacement tank; The 3-outlet valve; The 4-water intaking valve; 5-the second circulating-water valve; The 6-plug flow device; 7-the first circulating-water valve; The 8-vent valve; The 9-mud valve; The 10-water-in; The 11-agitator.
Embodiment
Embodiment 1
Activated sludge reaction system described in the present embodiment comprises as shown in Figure 1:
Reactor 1, described reactor are normal pressure reactor, and the top of described reactor 1 is connected with atmosphere, the high 50m of described reactor;
Be communicated with described displacement tank 2 and be provided with for the water intaking valve 4 of untreated sewage being sent into described displacement tank 2 and be used for emitting the outlet valve 3 of described displacement tank 2 liquid, be provided with vent valve 8 at the top of described displacement tank 2; For fear of the dead angle is arranged, displacement tank described in the present embodiment 2 comprises cylindrical tube and is connected the conical shell of putting with two bottom surfaces of described cylindrical tube respectively, described two conical shells are along shrinking gradually away from the direction of described cylindrical tube, as selectable embodiment, described displacement tank 2 also can be set to other shape.
The first circulating line and the second circulating line, described the first circulating line and described the second circulating line are connected with the serrated end of two conical shells of described displacement tank respectively, and then described displacement tank 2 is connected with described reactor 1 by described the first circulating line and the second circulating line respectively, be provided with the first circulating-water valve 7 at described the first circulating line, be provided with the second circulating-water valve 5 at described the second circulating line;
Be provided with plug flow device 6 at described the second circulating line, described plug flow device 6 is for being arranged on the impeller in described the second circulating line.
The operation method of the displacement apparatus that is used for activated sludge reactor 1 described in the present embodiment may further comprise the steps:
(1) opens described vent valve 8, close described the first circulating-water valve 7, the second circulating-water valve 5 and outlet valve 3, open described water intaking valve 4, untreated sewage is sent into described displacement tank 2;
(2) after described untreated sewage is filled described displacement tank 2, close described water intaking valve 4 and vent valve 8, open described the first circulating-water valve 7 and the second circulating-water valve 5, open described plug flow device 6, raw sewerage in the water outlet after processing in the described reactor 1 and the described displacement tank 2 is replaced;
(3) after described displacement tank 2 interior untreated sewages all enter described reactor 1, close described the first circulating-water valve 7, the second circulating-water valve 5, open described vent valve 8 and outlet valve 3, water outlet after the described processing is emitted, and then untreated sewage is sent into described displacement tank 2 carry out the next round displacement.
Activated sludge reaction system described in the present embodiment comprises as shown in Figure 2:
Reactor 1, described reactor are normal pressure reactor, and the top of described reactor 1 is connected with atmosphere, the high 100m of described reactor;
Be communicated with described displacement tank 2 and be provided with for the water intaking valve 4 of untreated sewage being sent into described displacement tank 2 and be used for emitting the outlet valve 3 of described displacement tank 2 liquid, be provided with vent valve 8 and mud valve 9 at the top of described displacement tank 2; Displacement tank described in the present embodiment 2 comprises cylindrical tube and is connected the conical shell of putting with two bottom surfaces of described cylindrical tube respectively, and described two conical shells are along shrinking gradually away from the direction of described cylindrical tube.
The first circulating line and the second circulating line, described the first circulating line and described the second circulating line are connected with the serrated end of described two conical shells respectively, and then described displacement tank 2 is connected with described reactor 1 by described the first circulating line and the second circulating line respectively, described the first circulating line is positioned at the top of described the second circulating line, be provided with the first circulating-water valve 7 at described the first circulating line, be provided with the second circulating-water valve 5 at described the second circulating line;
Be provided with plug flow device 6 at described the first circulating line, described plug flow device 6 is for being arranged on the impeller in described the first circulating line.
The operation method of the displacement apparatus that is used for activated sludge reactor 1 described in the present embodiment may further comprise the steps:
(1) opens described vent valve 8, close described the first circulating-water valve 7, the second circulating-water valve 5 and outlet valve 3, open described water intaking valve 4, untreated sewage is sent into described displacement tank 2;
(2) after described untreated sewage is filled described displacement tank 2, close described water intaking valve 4 and vent valve 8, open described the first circulating-water valve 7 and the second circulating-water valve 5, open described plug flow device 6, raw sewerage in the water outlet after processing in the described reactor 1 and the described displacement tank 2 is replaced;
(3) after described displacement tank 2 interior untreated sewages all enter described reactor 1, close described the first circulating-water valve 7, the second circulating-water valve 5, open described vent valve 8 and mud valve 9, gas in the described displacement tank 2 floats, and drives the mud floating, and part mud is discharged by described mud valve 9, after realizing the separating of sewage and mud, open described outlet valve 3, the sewage after the separation is emitted again, and remaining mud still is trapped in the described displacement tank 2;
(4) close described outlet valve 3, open described water intaking valve 4, untreated sewage is sent into described displacement tank 2 mix with described mud.
Activated sludge reaction system described in the present embodiment comprises as shown in Figure 3:
Reactor, described reactor are high-pressure reactor, and the air pressure in the described reactor is 1Mpa, the high 15m of described reactor;
The supporting two cover displacement apparatus that are provided with on reactor 1 in the present embodiment, every cover displacement apparatus comprises:
The first circulating line and the second circulating line, described the first circulating line and described the second circulating line are connected with the serrated end of described two conical shells respectively, and then described displacement tank 2 is connected with described reactor 1 by described the first circulating line and the second circulating line respectively, be provided with the first circulating-water valve 7 at described the first circulating line, be provided with the second circulating-water valve 5 at described the second circulating line;
Be provided with plug flow device 6 at described the second circulating line, plug flow device described in the present embodiment 6 is for being arranged on the impeller in described the second circulating line, as the embodiment that can select, described plug flow device 6 also can be arranged on described the first circulating line.
The present embodiment also is provided with water-in 10 on described reactor 1; Be provided with agitator 11 in described reactor 1, agitator described in the present embodiment 11 is arranged on the bottom of described reactor 1.
The operation method of the displacement apparatus that is used for activated sludge reactor 1 described in the present embodiment may further comprise the steps:
(1) opens vent valve 8 on the described displacement tank 2, close circulating-water valve, the second circulating-water valve 5 and outlet valve 3 on the described displacement tank 2, open water intaking valve 4, untreated sewage is sent into described displacement tank 2;
(2) after described untreated sewage is filled described displacement tank 2, close described water intaking valve 4 and vent valve 8, open described the first circulating-water valve 7 and the second circulating-water valve 5, open described plug flow device 6, raw sewerage in the water outlet after processing in the described reactor 1 and the described displacement tank 2 is replaced;
(3) after described displacement tank 2 interior untreated sewages all enter described reactor 1, close described the first circulating-water valve 7, the second circulating-water valve 5, open described vent valve 8 and mud valve 9, gas in the described displacement tank 2 floats, and drives the mud floating, and part mud is discharged by described mud valve 9, after realizing the separating of sewage and mud, open described outlet valve 3, the sewage after the separation is emitted again, and remaining mud still is trapped in the described displacement tank 2;
(4) close described outlet valve 3, open described water intaking valve 4, untreated sewage is sent into described displacement tank 2 mix with described mud.
In order to guarantee in the reactor 1 continuity of water inlet and water outlet, two described in the present embodiment overlaps displacement apparatus and replaces in turn.
Need to prove, " high pressure area of reactor " described in the present invention refers to that reactor pressure is greater than the zone of 0.1Mpa.
Obviously, above-described embodiment only is for example clearly is described, and is not the restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all embodiments exhaustive.And the apparent variation of being extended out thus or change still are among the protection domain of the invention.
Claims (11)
1. activated sludge reaction system comprises:
Reactor and the displacement apparatus that is connected setting with described reactor;
Wherein said displacement apparatus comprises:
Displacement tank, the high pressure area of described displacement tank and described reactor is in the position of basic horizontal;
Be communicated with described displacement tank and be provided with for the water intaking valve of untreated sewage being sent into described displacement tank and be used for emitting the outlet valve of described displacement tank liquid, be provided with vent valve at the top of described displacement tank;
Be communicated with described displacement tank and be provided with the first circulating line and the second circulating line, described displacement tank is connected with described reactor by described the first circulating line and the second circulating line respectively, be provided with the first circulating-water valve at described the first circulating line, be provided with the second circulating-water valve at described the second circulating line;
Be provided with plug flow device at described the first circulating line or the second circulating line.
2. activated sludge reaction according to claim 1 system is characterized in that, is provided with mud valve at the top of described displacement tank.
3. activated sludge reaction according to claim 1 and 2 system, it is characterized in that, described displacement tank comprises cylindrical tube and is connected respectively the conical shell that arranges with two end faces of described cylindrical tube, described two conical shells are along shrinking gradually away from the direction of described cylindrical tube, and described the first circulating line and described the second circulating line are connected with the serrated end of described two conical shells respectively.
4. activated sludge reaction according to claim 3 system is characterized in that, supportingly on the reactor is provided with many cover displacement apparatus.
5. arbitrary described activated sludge reaction system is characterized in that according to claim 1-4, and described plug flow device is the impeller that is arranged in described the first circulating line or the second circulating line.
6. arbitrary described activated sludge reaction system is characterized in that according to claim 1-5, and described reactor is the closed reactor.
7. described activated sludge reaction system is characterized in that according to claim 1-6, is provided with agitator in described reactor.
8. the operation method of the arbitrary described activated sludge reaction of claim 1-7 system may further comprise the steps:
(1) opens described vent valve, close described the first circulating-water valve, the second circulating-water valve and outlet valve, open described water intaking valve, untreated sewage is sent into described displacement tank;
(2) after described untreated sewage is filled described displacement tank, close described water intaking valve and vent valve, open described the first circulating-water valve and the second circulating-water valve, open described plug flow device, raw sewerage in the water outlet after processing in the described reactor and the described displacement tank is replaced;
(3) after untreated sewage all enters described reactor in described displacement tank, close described the first circulating-water valve, the second circulating-water valve, open described vent valve and outlet valve, water outlet after the described processing is emitted, and then untreated sewage is sent into described displacement tank carry out the next round displacement.
9. the operation method of activated sludge reaction according to claim 8 system, it is characterized in that, in described step (3), after untreated sewage all enters described reactor in described displacement tank, close described the first circulating-water valve, the second circulating-water valve, open described vent valve, gas in the described displacement tank floats, drive mud floating, after realizing the separating of water outlet and mud, open described outlet valve again, the water outlet after separating is emitted, remaining mud still is trapped in the described displacement tank;
After water outlet after to be separated is emitted, close described outlet valve, open described water intaking valve, untreated sewage is sent into described displacement tank mix with described mud.
10. according to claim 8 or the operation method of 9 described activated sludge reaction systems, it is characterized in that, also open described mud valve when in described step (3), opening described vent valve, by described mud valve discharge section mud.
11. the operation method of activated sludge reaction according to claim 10 system is characterized in that, supportingly on the reactor is provided with many cover displacement apparatus, described many cover displacement apparatus are replaced in turn.
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| CN2012103650731A CN102897904B (en) | 2012-09-26 | 2012-09-26 | Activated sludge reaction system |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5755961A (en) * | 1995-11-03 | 1998-05-26 | Limcaco; Christopher A. | Aquarium system |
| CN101519262B (en) * | 2009-04-14 | 2012-05-16 | 周家正 | Mobile sewage treatment station of unit type membrane and biological decomposition |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5755961A (en) * | 1995-11-03 | 1998-05-26 | Limcaco; Christopher A. | Aquarium system |
| CN101519262B (en) * | 2009-04-14 | 2012-05-16 | 周家正 | Mobile sewage treatment station of unit type membrane and biological decomposition |
Non-Patent Citations (1)
| Title |
|---|
| 罗爱武: "压力容器活性污泥法处理餐厅生活污水", 《环境工程》 * |
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