CN203754499U - Sewage treatment device - Google Patents
Sewage treatment device Download PDFInfo
- Publication number
- CN203754499U CN203754499U CN201420077670.9U CN201420077670U CN203754499U CN 203754499 U CN203754499 U CN 203754499U CN 201420077670 U CN201420077670 U CN 201420077670U CN 203754499 U CN203754499 U CN 203754499U
- Authority
- CN
- China
- Prior art keywords
- chamber
- pond
- waste disposal
- disposal plant
- lattice chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000010865 sewage Substances 0.000 title abstract description 10
- 239000011259 mixed solution Substances 0.000 claims description 30
- 239000000203 mixture Substances 0.000 claims description 24
- 238000012549 training Methods 0.000 claims description 24
- 239000002699 waste material Substances 0.000 claims description 24
- 239000010802 sludge Substances 0.000 claims description 15
- 238000010992 reflux Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 8
- 206010002660 Anoxia Diseases 0.000 claims description 7
- 241000976983 Anoxia Species 0.000 claims description 7
- 206010021143 Hypoxia Diseases 0.000 claims description 7
- 230000007953 anoxia Effects 0.000 claims description 7
- 238000004062 sedimentation Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 238000005273 aeration Methods 0.000 abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 14
- 238000005265 energy consumption Methods 0.000 abstract description 10
- 238000006396 nitration reaction Methods 0.000 description 20
- 238000000034 method Methods 0.000 description 16
- 230000008569 process Effects 0.000 description 9
- 230000008859 change Effects 0.000 description 4
- 238000011112 process operation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Abstract
The utility model discloses a sewage treatment device, which comprises a primary settling tank, an anoxic tank, an aerobic tank and a secondary settling tank, wherein the aerobic tank comprises a plurality of fixed chambers arranged in sequence at the front end, a plurality of movable chambers arranged in sequence at the tail end, and an air compressor connected with each chamber; adjacent chambers are isolated through guide walls; openings are reserved between each guide wall and the side walls of the chambers, and adjacent openings are formed alternatively; movable baffle plates are arranged close to the guide walls of the movable chambers respectively, and are used for closing the openings of the guide walls; mixed liquor outlets are formed in the movable chambers respectively, and are connected with the secondary settling tank respectively. By adopting the sewage treatment device, the effective volume of the aerobic tank can be adjusted flexibly according to the water quality characteristics of inflow water, so that subsequent excessive aeration is avoided while effluent is up to standard, and the aeration energy consumption can be lowered greatly.
Description
Technical field
The utility model relates to environmental resources technical field, particularly relates to waste disposal plant.
Background technology
In urban sewage treatment process, pre-denitrification and denitrogenation system is one of conventional Continuous Flow activated sludge process.In sewage water denitrification treating processes, Aerobic Pond is to carry out nitration reaction, cut down organic important place, more satisfactory situation is last the lattice chamber at Aerobic Pond, just complete nitration reaction, thereby avoid the situation of excessive aeration to occur, but in practical situation, be difficult to control to this level.This is the setting due to scale and the operating parameter of sewage work, is generally to determine and process the water yield and operating parameter according to 10～20 year design period.At initial operating stage, sewage load is less than normal, in plug-flow direction, causes sewage in Aerobic Pond, to fulfil nitration reaction ahead of schedule, but the outlet position that in Aerobic Pond, mixed solution flows to second pond fixes, the mixed solution remaining Aerobic Pond that must continue to flow through just can enter second pond.And for preventing that active sludge from precipitating in Aerobic Pond, mixed solution need to continue in aeration process to flow to outlet, must cause energy consumption waste (aeration energy consumption account for Activated Sludge Process total energy consumption 50%～70%).In addition,, under low nutrient concentrations, excessive aeration produces destruction to active sludge flco.
Utility model content
In view of this, the purpose of this utility model is to propose a kind of waste disposal plant, to reduce aeration energy consumption, saves cost of sewage disposal.
Based on above-mentioned purpose, the waste disposal plant that the utility model provides comprises the preliminary sedimentation tank, anoxic pond, Aerobic Pond and the second pond that are connected successively,
Wherein, described Aerobic Pond comprise be positioned at front end several fixed grating chambers that are arranged in order, be positioned at several movable lattice chambers that are arranged in order of tail end and the air compressor being all connected with each lattice chamber, between adjacent lattice chamber, separate by training wall, between the sidewall of the equal dative of each training wall chamber, leave opening, and the position of adjacent apertures is arranged alternately, near the opening of the training wall of described movable lattice chamber, arrange and have respectively shifting board, described shifting board is for closing the opening of described training wall; Described movable lattice offer respectively mixture export on chamber, and described mixture export is connected with second pond respectively.
Alternatively, on the pipeline that described mixture export is connected with second pond, be separately installed with mixed solution valve.
Preferably, described lattice chamber is in parallel with air compressor respectively, is separately installed with air door and gas meter on its aerating pipelines.
Alternatively, the volume sum of described movable lattice chamber be fixed grating chamber volume sum 4/7～6/7.
Preferably, the volume sum of described movable lattice chamber be fixed grating chamber volume sum 5/7.
Alternatively, the mixture export on described adjacent activities lattice chamber is arranged alternately in the both sides of Aerobic Pond.
Alternatively, described anoxic pond comprises several anoxia cell chambers that are arranged in order and is installed on the agitator in each lattice chamber, between described adjacent anoxia cell chamber, separate by training wall, between the sidewall of the equal dative of each training wall chamber, leave opening, and the position of adjacent apertures is arranged alternately.
Alternatively, the mixture export of described last movable lattice chamber is connected with the front end of Aerobic Pond by nitrification liquid reflux line.
Alternatively, the sludge outlet of described second pond bottom is connected with the front end of Aerobic Pond by sludge return pipe.
Preferably, described air compressor is frequency-conversion air compressor.
As can be seen from above, the waste disposal plant that the utility model provides can, according to influent quality feature, according to the nitration reaction end point detecting, be adjusted the useful volume of Aerobic Pond flexibly, has strengthened the handiness of process operation regulation and administration; Change mixed solution flows to the position of second pond flexibly, can in time mixed solution after treatment be entered to second pond; Ensure the generation of having avoided follow-up excessive aeration situation when water outlet is up to standard, can significantly reduce aeration energy consumption.
Brief description of the drawings
Fig. 1 is the skeleton symbol figure of the utility model embodiment waste disposal plant;
Fig. 2 is the vertical view of the utility model embodiment waste disposal plant;
Fig. 3 is the side-view of the utility model embodiment waste disposal plant.
Wherein: 1, preliminary sedimentation tank, 2, anoxic pond, 3, Aerobic Pond, 4, second pond, 5, agitator, 6, air compressor, 7, nitrification liquid reflux pump, 8, sludge reflux pump, 9, training wall, 10, shifting board, O1～O7, fixed grating chamber, O8～O12, movable lattice chamber, A1～A4, anoxia cell chamber, the training wall opening of K1～K4, movable lattice chamber, M1～M4, mixed solution valve, F1～F12, air door, L1～L12, gas meter.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the utility model is further described.
The waste disposal plant that the utility model provides comprises the preliminary sedimentation tank being connected successively, anoxic pond, Aerobic Pond and second pond, wherein, described Aerobic Pond comprises several fixed grating chambers that are arranged in order that are positioned at front end, be positioned at several movable lattice chambers that are arranged in order of tail end and the air compressor being all connected with each lattice chamber, between adjacent lattice chamber, separate by training wall, between the sidewall of the equal dative of each training wall chamber, leave opening, and the position of adjacent apertures is arranged alternately, near the opening of the training wall of described movable lattice chamber, arrange and have respectively shifting board, described shifting board is for closing the opening of described training wall, described movable lattice offer respectively mixture export on chamber, and described mixture export is connected with second pond respectively.
With reference to figure 1 and Fig. 2, it is respectively skeleton symbol figure and the vertical view of the utility model embodiment waste disposal plant.Described waste disposal plant comprises preliminary sedimentation tank 1, anoxic pond 2, Aerobic Pond 3 and second pond 4, and preliminary sedimentation tank 1, anoxic pond 2, Aerobic Pond 3 and second pond 4 are connected from left to right successively.The mixture export of described Aerobic Pond 3 tail ends is connected with the front end of Aerobic Pond 3 by nitrification liquid reflux line, and nitrification liquid control of reflux ratio is 50%～150%.Further, this nitrification liquid reflux line is provided with nitrification liquid reflux pump 7.The sludge outlet of described second pond 4 bottoms is connected with the front end of Aerobic Pond 3 by sludge return pipe.Further, this sludge return pipe is provided with sludge reflux pump 8.
As an embodiment of the present utility model, described Aerobic Pond 3 comprise be positioned at front end several fixed grating chambers O1～O7 being arranged in order, be positioned at several the movable lattice chamber O8～O12 being arranged in order of tail end and the air compressor 6 being all connected with each lattice chamber.Between adjacent lattice chamber, separate by training wall 9, between the sidewall of each training wall 9 equal dative chambers, leave opening, mixed solution flow to tail end by these openings from the front end of Aerobic Pond 3.Preferably, the position of adjacent apertures is arranged alternately, as shown in Figure 2, and to ensure the reaction times of mixed solution in Aerobic Pond 3.Near the opening of the training wall 9 of described movable lattice chamber O8～O12, arrange and have respectively shifting board 10, described shifting board 10 is for closing the opening K1～K4 of described training wall 9.That is movable lattice chamber O8～O12 can open or closure by shifting board 10, to change the useful volume of Aerobic Pond 3, saves aeration energy consumption.
And, on described movable lattice chamber O8～O12, offering respectively mixture export, described mixture export is connected with second pond 4 by outlet conduit respectively, is separately installed with mixed solution valve M1～M4 on the pipeline that described mixture export is connected with second pond 4.Preferably, mixture export on described adjacent activities lattice chamber O8～O12 is arranged alternately in the both sides of Aerobic Pond 3, be the side that the mixture export of movable lattice chamber O8 and the mixture export of movable lattice chamber O10 are positioned at Aerobic Pond 3, and the mixture export of the mixture export of movable lattice chamber O9 and movable lattice chamber O11 is positioned at the opposite side of Aerobic Pond 3.It should be noted that, the mixture export (being the mixture export of Aerobic Pond 3 tail ends) of movable lattice chamber O12 is connected with second pond 4 by pipeline.
Referring to Fig. 3, it is the side-view ground of the utility model embodiment waste disposal plant.Described lattice chamber O1～O12 is in parallel with air compressor 6 respectively, is separately installed with air door F1～F12 and gas meter L1～L12 on its aerating pipelines separately.Preferably, described air compressor 6 can be frequency-conversion air compressor, to reduce energy consumption.
It should be noted that, above-described embodiment be with 12 lattice chambers (7 fixed grating chambers, 5 movable lattice chambers) for example describes, but be not limited to the Aerobic Pond of 12 lattice chambers, can be according to processing the quantity that need to adjust fixed grating chamber and movable lattice chamber in Aerobic Pond.Alternatively, the volume sum of described movable lattice chamber be fixed grating chamber volume sum 4/7～6/7.More preferably, the volume sum of described movable lattice chamber be fixed grating chamber volume sum 5/7.
As another embodiment of the present utility model, described anoxic pond 2 comprises several anoxia cell chamber A1～A4 that are arranged in order and is installed on the agitator 5 in each lattice chamber, between described adjacent anoxia cell chamber A1～A4, separate by training wall 9, between the sidewall of each training wall 9 equal dative chambers, leave opening, and the position of adjacent apertures is arranged alternately.
When the nitration reaction end point detecting in Aerobic Pond 3, seal the mixture export of movable lattice chamber by shifting board 10, movable lattice chamber below for the time being need not, thereby changed Aerobic Pond 3 useful volumes.Along with the variation of water quality, when nitration reaction end point postpones, shifting board 10 is all opened, expand Aerobic Pond useful volume, until again determine nitration reaction end point, then the shifting board 10 of corresponding lattice chamber is closed.In water (flow) direction, the mixed solution valve open before shifting board 10, mixed solution enters second pond.After mixed solution after shifting board 10 all flows away, the movable lattice chamber after shifting board 10 is stopped to aeration.
Particularly, make mixed solution valve M1, M2, M3 and M4 all in closing condition, 4 shifting boards 10, all in opening-wide state, utilize the biochemical reaction weight break point (pH-ammonia valley point, DO-oxidation hop point, ORP-carbon residue reference mark) monitoring to determine the position, lattice chamber that nitration reaction end point occurs.
(1) in the time that nitration reaction end point appears in any one the lattice chamber in the O1～O7 of fixed grating chamber, the shifting board 10 between movable lattice chamber O8 and O9 is sealed to opening K1, and open mixed solution valve M1; After treating that mixed solution in movable lattice chamber O9, O10, O11, O12 all flows away, close air door F9～F12.In the time that influent quality changes, until all there is not nitration reaction end point in the O1～O7 of fixed grating chamber, rapidly the shifting board of closing 10 is opened, open air door F9～F12 simultaneously, close mixed solution valve M1.
(2) in the time there is nitration reaction end point in movable lattice chamber O8, shifting board 10 between movable lattice chamber O9 and O10 is sealed to opening K2, and open mixed solution valve M2, after treating that mixed solution in Aerobic Pond O10, O11, O12 all flows away, close air door F10～F12.In the time that influent quality changes, until nitration reaction end point does not appear in movable lattice chamber O8, rapidly the shifting board of closing 10 is opened, open air door F10～F12 simultaneously, close mixed solution valve M2.
(3) in the time there is nitration reaction end point in movable lattice chamber O9, shifting board 10 between movable lattice chamber O10 and O11 is sealed to opening K3, and open mixed solution valve M3, after treating that mixed solution in Aerobic Pond O11, O12 all flows away, close air door F11 and F12.In the time that influent quality changes, until nitration reaction end point does not appear in movable lattice chamber O9, rapidly the shifting board of closing 10 is opened, open air door F11, F12 simultaneously, close mixed solution valve M3.
(4) in the time there is nitration reaction end point in movable lattice chamber O10, the shifting board 10 between movable lattice chamber O11 and O12 is sealed to opening K4, and open mixed solution valve M4, after treating that mixed solution in Aerobic Pond O12 all flows away, close air door F12.In the time that influent quality changes, until nitration reaction end point does not appear in movable lattice chamber O10, rapidly the shifting board of closing 10 is opened, open air door F12 simultaneously, close mixed solution valve M4.
(5) in the time that nitration reaction end point appears in movable lattice chamber O11 or O12, all shifting boards and mixed solution valve, without action, are undertaken by former technical process.
(6), when occurring in one of above-mentioned situation process, when the reach of nitration reaction end point, according to the position of end point, with reference to above-mentioned a certain situation, carry out corresponding operation.
Continuous Flow A/O technique pilot plant is processed city domestic sewage, device useful volume 1.4m
3, process water yield 5.0m
3/ d, return sludge ratio is controlled at 50%～100%, nitrification liquid control of reflux ratio is 50%～150%, mixed liquor suspended solid, MLSS concentration in Aerobic Pond is controlled at 2000mg/L～4000mg/L, sludge age is controlled at 15d,, utilize respectively traditional method and the inventive method to chemically examine water sample, appear at Aerobic Pond lattice chamber O8 as example taking nitration reaction end point, analytical results full edition 1; Compared with traditional control method, aeration rate can reduce approximately 25%, thereby can significantly reduce aeration energy consumption.
The different control method principal pollutant of table 1 Inlet and outlet water change in concentration (mg/L)
| COD Cr | NH 4-N | TN | TP | |
| Water inlet | 158.2 | 21.0 | 26.3 | 2.3 |
| Water outlet-traditional method | 19.5 | 0.8 | 14.2 | 0.72 |
| Water outlet-the inventive method | 22.2 | 1.2 | 13.8 | 0.81 |
As mentioned above, the waste disposal plant that the utility model provides can, according to influent quality feature, according to the nitration reaction end point detecting, be adjusted the useful volume of Aerobic Pond flexibly, has strengthened the handiness of process operation regulation and administration; Change mixed solution flows to the position of second pond flexibly, can in time mixed solution after treatment be entered to second pond; Ensure the generation of having avoided follow-up excessive aeration situation when water outlet is up to standard, can significantly reduce aeration energy consumption.
Those of ordinary skill in the field are to be understood that: the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle; any amendment of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a waste disposal plant, is characterized in that, comprises the preliminary sedimentation tank, anoxic pond, Aerobic Pond and the second pond that are connected successively,
Wherein, described Aerobic Pond comprise be positioned at front end several fixed grating chambers that are arranged in order, be positioned at several movable lattice chambers that are arranged in order of tail end and the air compressor being all connected with each lattice chamber, between adjacent lattice chamber, separate by training wall, between the sidewall of the equal dative of each training wall chamber, leave opening, and the position of adjacent apertures is arranged alternately, near the opening of the training wall of described movable lattice chamber, arrange and have respectively shifting board, described shifting board is for closing the opening of described training wall; Described movable lattice offer respectively mixture export on chamber, and described mixture export is connected with second pond respectively.
2. waste disposal plant according to claim 1, is characterized in that, is separately installed with mixed solution valve on the pipeline that described mixture export is connected with second pond.
3. waste disposal plant according to claim 1, is characterized in that, described lattice chamber is in parallel with air compressor respectively, is separately installed with air door and gas meter on its aerating pipelines.
4. waste disposal plant according to claim 1, is characterized in that, the volume sum of described movable lattice chamber be fixed grating chamber volume sum 4/7～6/7.
5. waste disposal plant according to claim 4, is characterized in that, the volume sum of described movable lattice chamber be fixed grating chamber volume sum 5/7.
6. waste disposal plant according to claim 1, is characterized in that, the mixture export on described adjacent activities lattice chamber is arranged alternately in the both sides of Aerobic Pond.
7. waste disposal plant according to claim 1, it is characterized in that, described anoxic pond comprises several anoxia cell chambers that are arranged in order and is installed on the agitator in each lattice chamber, between described adjacent anoxia cell chamber, separate by training wall, between the sidewall of the equal dative of each training wall chamber, leave opening, and the position of adjacent apertures is arranged alternately.
8. waste disposal plant according to claim 1, is characterized in that, the mixture export of described last movable lattice chamber is connected with the front end of Aerobic Pond by nitrification liquid reflux line.
9. waste disposal plant according to claim 1, is characterized in that, the sludge outlet of described second pond bottom is connected with the front end of Aerobic Pond by sludge return pipe.
10. waste disposal plant according to claim 1, is characterized in that, described air compressor is frequency-conversion air compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420077670.9U CN203754499U (en) | 2014-02-24 | 2014-02-24 | Sewage treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420077670.9U CN203754499U (en) | 2014-02-24 | 2014-02-24 | Sewage treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203754499U true CN203754499U (en) | 2014-08-06 |
Family
ID=51249798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420077670.9U Expired - Fee Related CN203754499U (en) | 2014-02-24 | 2014-02-24 | Sewage treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203754499U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105417697A (en) * | 2014-11-24 | 2016-03-23 | 浙江大学 | Biological pretreatment method of raw water |
-
2014
- 2014-02-24 CN CN201420077670.9U patent/CN203754499U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105417697A (en) * | 2014-11-24 | 2016-03-23 | 浙江大学 | Biological pretreatment method of raw water |
| CN105417697B (en) * | 2014-11-24 | 2018-07-27 | 浙江大学 | A kind of raw water biological pretreatment method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10131550B2 (en) | Enhanced biosorption of wastewater organics using dissolved air flotation with solids recycle | |
| CN104609560B (en) | Method for performing nitrogen biological removal on low-temperature low-carbon nitrogen ratio sewage | |
| CN201136825Y (en) | Biochemical treatment device for high ammonia and nitrogen-containing waste water | |
| CN105217886A (en) | A kind of method using the biological reaction tank of energy switch mode to dispose of sewage | |
| CN105668947A (en) | Sewage purification filter system | |
| CN205575760U (en) | Multi -functional biological filter | |
| CN103833183B (en) | Sewage treatment system | |
| CN203754499U (en) | Sewage treatment device | |
| CN103420483B (en) | A kind of sequencing batch type waste disposal plant | |
| CN205170493U (en) | Can switch biological reaction pond of mode | |
| CN205653232U (en) | Forward type membrane bioreactor | |
| CN202379803U (en) | Staggered flow type aeration, sediment and filter device | |
| CN103951063B (en) | Energy-saving type treatment device for MBR (membrane biological reactor) oxidation ditch sewage | |
| CN105236570A (en) | Biological reaction tank capable of having modes switched | |
| CN206538259U (en) | A kind of biochemical sewage treatment device | |
| CN111825269A (en) | Industrial wastewater advanced treatment system | |
| CN207619108U (en) | A kind of biochemical wastewater treatment pilot-plant | |
| CN205170499U (en) | Take sewage treatment device of secondary aeration structure | |
| CN210710945U (en) | Landfill leachate short-cut nitrification and denitrification biological denitrification device | |
| CN104045202A (en) | Integrated autotrophic biological nitrogen removal collaborative chemical phosphorus removal reactor | |
| CN107055973A (en) | The sewage water treatment method of total nitrogen is removed without additional carbon | |
| US11352275B2 (en) | High solids dissolved air flotation system and methods | |
| CN211284066U (en) | Kitchen waste fermentation liquor treatment system | |
| KR101532735B1 (en) | Up flow anaerobic waste water treatment with microorganism sludge thickener | |
| CN209456157U (en) | A kind of sewage-treatment plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |