CN202297243U - Integrated oxidation ditch - Google Patents
Integrated oxidation ditch Download PDFInfo
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- CN202297243U CN202297243U CN2011201220246U CN201120122024U CN202297243U CN 202297243 U CN202297243 U CN 202297243U CN 2011201220246 U CN2011201220246 U CN 2011201220246U CN 201120122024 U CN201120122024 U CN 201120122024U CN 202297243 U CN202297243 U CN 202297243U
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- oxidation ditch
- filler
- ditch
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The utility model relates to an integrated oxidation ditch which comprises an oxidation ditch pool body, an aerating device at the bottom or on the middle lower part and a separated depositing area in the tail end of a processing process, wherein the integrated oxidation ditch is characterized in that a suspension type filler is arranged in the oxidation ditch pool body; a filler stopping net is at least arranged at a water inlet of the depositing area; and a horizontal herringbone folded plate or folded pipe mud-water separating filler is built in the depositing area. The microbial biomass in the oxidation ditch is increased; a processing volume load is increased; the increased microbial biomass is mainly concentrated on the suspension type filler; the practical suspension slurry concentration in water of the oxidation ditch is not increased or reduced and is controlled below 3000mg/l; the built-in separated depositing area is designed according to high load; the microbial biomass is increased while the area of the depositing area is not increased or is suitably reduced; the occupied area of the oxidation ditch is practically and effectively saved, is reduced by 1/3-1/5 of the occupied area of a common deep ditch type oxidation ditch and is saved for 10-20% of the occupied area of a deep ditch type oxidation ditch with the depositing area; and the suspension type biological filler is used for saving running energy consumption and reducing 20-30% of the running energy consumption.
Description
Technical field
Utility model is the improvement to integrated oxidation ditch, relates in particular to a kind of oxidation ditch living weight height, and suspended sludge is few in the water, and built-in settling region area is little, and end aeration rises the integrated oxidation ditch of deep channel type.
Background technology
Oxidation ditch process is as the innovation of activated sludge process; Compare with traditional activated sludge process; Have characteristics such as technical process is simple, operational management convenient, treatment effect is stable, effluent quality is good; Be to use more a kind of ripe water technology in WWT, in water treatment, occupy quite high application percentage.Oxidation ditch all be usually with table expose to the sun device for example rotating disk, change brush, surface aerating machine etc.; Realize oxygen supply and plug-flow circulation in water simultaneously; Yet because the mixed soil water cycle only depends on surperficial plug-flow to drive; Therefore ditch depth is more shallow usually generally is no more than 4.5 meters, and downstream install flow deflector additional also just suitably increases the degree of depth, perhaps improves the bottom fluidised form and reduces sludge settling.Show to expose to the sun the plug-flow oxygen supply, not only reduced the utilization ratio of oxygenation, and sludge concentration is restricted and can not improves; Usually oxidation ditch design sludge concentration≤3500mg/l causes sludge loading little, and the processing residence time is long; Cause occupation of land relatively large; Thereby the oxidation ditch occupation of land is big, and sludge concentration is low, becomes the significant obstacle that the conventional oxidation ditch is promoted.
Chinese patent CN1693235A air lifting deep water type oxidizing tank adopts the interval that bottom aeration substitution list is set and exposes to the sun, and utilizes the aeration gas lift to drive on the whole current direction and flows; Thereby become the propulsion source of whole oxidation ditch operation, thereby make ditch depth obtain strengthening, sludge concentration and coefficient of oxygen utilization are improved simultaneously; Sludge concentration can design to 4000mg/l; Improved oxidation ditch and handled load, reduced the residence time, made to take up an area of to reduce.Bottom aeration air lift type deep channel type oxidation channel; Though overcome the shortcoming of surface aeration oxidation ditch, but still the mud-water separation second pond need be set outside oxidation ditch, and reflux; Because processing requirement second pond area is usually near oxidation ditch, thereby the actual effect that saves land is still limited; Secondly, the material alterations reflux operation is not complicated, and saves backflow energy consumption and corresponding refluxing unit.
Chinese patent CN101269879 Zanjon type gas-lift stream-pull tridimensional circulation type inversion A
2The O integral co-construction oxidation ditch on gas lift plug-flow basis, is divided into upper and lower two-layer raceway groove (top-layer channel is an aerobic zone, and lower floor's raceway groove is the oxygen-starved area) with tap drain, and front end is provided with solid-liquid displacement zone, and the rear end is an anaerobic zone.External settling region is moved in the oxidation ditch, reach and save the settling tank area, save whole technology and take up an area of.
Chinese patent CN101269880 Zanjon type gas-lift stream-pull tridimensional circulation type integral co-construction oxidation ditch; Form by anaerobic zone, oxygen-starved area, micro-hole aerator group aerobic zone and solid-liquid displacement zone; The tap drain front end is an anaerobic zone; Tap drain is divided into the upper strata aerobic zone between anaerobic zone and tap drain end, the lower floor oxygen-starved area, and solid-liquid displacement zone is provided with between anaerobic zone and the n level aerobic reactor zone.
Though above-mentioned two patents proposition moves to the settling region in the oxidation ditch and is provided with; Establish the settling tank floor space in addition to reach minimizing, and can omit mud reflux operation and power consumption, excess sludge can easyly be discharged; Also save settling tank and scrape mud equipment, make operation become simple.In engineering of water treatment settling tank area design, when sludge concentration for example relatively low≤during 3500mg/l, the load value is bigger, the settling tank load can be according to 1.0-3.0m
3/ m
2.h design; When sludge concentration for example higher relatively>=during 3500mg/l, the load value is lower, the settling tank load can only be according to 0.5-1.5m
3/ m
2.h design.Yet, shorten the residence time because deep channel type oxidation channel adopts the bottom aeration can keep higher sludge concentration (volumetric loading).But high sludge concentration must add major groove inner suspension shape sludge concentration; And higher suspension shape sludge concentration makes that mud-water separation can only be by low surface load design in the ditch; Cause the settling region area occupied bigger thus, thereby strengthened the oxidation ditch occupation of land, and the area that may make the saving of employing deep channel type; In the settling region area increases, be cancelled, thereby the actual area that saves land is limited.Secondly, in the sewage through the popular mud proportion of flocculation generally greater than 1, suspended sludge concentration increases in the water, makes to realizing the circulation of oxidation ditch waterpower, needs to increase operation energy consumption, the therefore high sludge concentration increase that brings operation energy consumption.
Above-mentioned deficiency still has is worth improved place.
Summary of the invention
The utility model purpose is to overcome the deficiency of above-mentioned prior art, provides a kind of oxidation ditch living weight high, and suspended sludge is few in the water, the little integrated oxidation ditch of built-in settling region area.
The utility model purpose realizes; The main improvement is in the deep channel type oxidation channel of bottom aeration, to add floating stuffing; Around in the settling region barrier is set, and in the settling region, uses horizontal herring-bone flap or folding pipe mud-water separation filler instead, reach and both improve living weight in the oxidation ditch; Improve oxidation ditch processing volume load; Make that again the living weight that increases mainly concentrates on the floating stuffing, and suspended sludge concentration does not increase or reduces in addition in the water, can keep the low suspended sludge concentration of common oxidation ditch even be lower than common oxidation ditch suspended sludge concentration; Thereby the settling region can be designed by high loading, and reaching the raising living weight does not increase the settling region area or also has suitably minimizing; And filler proportion was not higher than sewage proportion after filler suspend to be hung film, was suspended in the water, thereby was not required to be and prevents sedimentation and increase operation energy consumption (not needing to increase in addition flow velocity); Horizontal herring-bone flap or folding tube packing; Not only can avoid sludge concentration increase suddenly or minimizing to cause the mud rising phenomenon; And the oblique flow deflector buffering of lower floor helps forming the dynamic suspension layer; Can utilize its well flocculation and adsorption, make tiny the material that gets into the settling region be adsorbed increasing, help improving the clearance of this part suspended particle.Thereby overcome the deficiency of prior art, realized the utility model purpose.Specifically; The utility model integrated oxidation ditch comprises oxidation ditch pond body, the aerating apparatus of the end or middle and lower part; The built-in separation of pond body settling region; It is characterized in that in the body of oxidation ditch pond the suspension type filler being arranged, the settling region water-in has the filler barrier at least, built-in horizontal herring-bone flap in settling region or folding pipe mud-water separation filler.
Oxidation ditch in the utility model can be the ditch type of various forms oxidation ditch in the prior art, and through the difference setting of aeration zone, bottom, the change of oxygen reaction zone length can form A/O technology, A respectively
2/ O technology, and through a plurality of water-ins are set, can also be multipoint water feeding A/O or A
2/ O technology.
The end or middle and lower part aerating apparatus, it acts on same prior art, and form is not limit, and can adopt various bottoms aerating apparatus in the existing water treatment.The setting of aerating apparatus can be provided with at the bottom of the ditch pond like Chinese patent CN1693235A, also can will partly separate levels like Chinese patent CN101269879, CN101269880, in the bottom, upper strata (Chi Shen middle and lower part) is set, and lower floor forms anaerobic zone.
Adding the suspension type filler, mainly is to load from both improving living weight in the oxidation ditch, improve to handle; Make large number of biological attached on the filler again, do not increase as far as possible or reduce and add in the water suspended sludge concentration and consider that the suspended sludge that also can make reasonable in design slightly descends; Make the high-biomass oxidation ditch; Suspended sludge can remain on the low sludge quantity of common oxidation ditch in the actual water, with this built-in settling region can be designed by high loading, and reaching the increase living weight does not increase or reduce settling region area and saving operation energy consumption; This handles the different of employing floating stuffing in oxidation ditch of the present invention, adding floating stuffing with ortho-water.Said suspension type filler can be the suspension type filler (proportion still can keep suspended state to select with prior art after with settled organism) of each form of using in the water treatment.Wherein a kind of better is to select volume and all big relatively floating stuffing of specific surface area; Hollow colyliform short tube floating stuffing for example; Big volume helps the interception of settling region water inlet barrier, hollow colyliform short-tube filling in addition, and specific surface area is big; And having inside and outside two different microenvironments, microbial population is abundant.Filler adds the 15-30% that volume accounts for oxidation ditch, specifically looks in the water suspended sludge concentration and confirms.
The settling region is not held in the oxidation ditch treatment scheme, is to confirm by the water inlet treatment scheme, handles the last settling region that gets into through previous process and carries out mud-water separation.The layout of settling region can have various ways, but better is to consider to leave the moving passage of treatment solution circulation, between promptly built-in settling region and oxidation ditch circulation channel is arranged, and circulating of filler helps enriching microbial population.
At least the settling region water-in has the filler barrier, and major function is the interception floating stuffing, and not making it get into the settling region influences mud-water separation, and runs off with water outlet.
Built-in horizontal herring-bone flap in settling region or folding pipe mud-water separation filler; Form by two swash plates in the opposite direction (pipe); Upper strata swash plate (pipe) plays the mud-water separation function with swash plate in the sedimentation pond for water treatment (pipe) filler, and the reverse swash plate of lower floor can play the flow velocity buffering and reach bottom water inlet uniformly distributing; And also help and form the dynamic suspension sludge blanket; Can give full play to strong flocculation of this suspended layer mud and adsorption, tiny the material that gets into the settling region is adsorbed build up to increase, thereby strengthened not effective clearance of free settling mud of this part.Two flaps in the opposite direction or folding pipe up and down, a kind of better is that lower floor's flap or folding length of tube are the 1/3-1/5 on upper strata, upper strata flap length helps improving separation efficiency.
The utility model integrated oxidation ditch is with respect to prior art, owing in end aeration lift-type deep channel type oxidation channel, add floating stuffing (not selecting hanging filler for use); Reach and both strengthen microbial biomass in the oxidation ditch; High-biomass can reach 8000mg/l, and the processing volume load is improved, and makes the living weight that increases mainly concentrate on the floating stuffing again; Making that actual suspended sludge concentration does not increase or also has in the oxidation ditch-water reduces; Can be controlled at below the 3000mg/l, can keep the low suspended sludge concentration of common oxidation ditch even be lower than common oxidation ditch suspended sludge concentration, thereby built-in separation settling region can be designed by high loading; Reaching the increase living weight does not increase the settling region area or also has suitably minimizing; Reality has effectively been saved the oxidation ditch floor space, takes up an area of more common deep channel type oxidation channel and saves 1/3-1/5, saves 10-20% with the deep channel type oxidation channel of settling region.If the deep channel type oxidation channel of retainer belt settling region takes up an area of, because of the treatment time prolongation can also improve the water outlet effect.Secondly; The whole proportion of filler still was not higher than sewage proportion after the suspension type biological filler was hung film; Can be suspended in the water; Thereby do not need to improve flow velocity increase operation energy consumption (if single the employing improved sludge quantity, then afore-mentioned can occur) like prior art for preventing high sludge settling, operation energy consumption is compared in experiment can reduce 20-30%.Horizontal herring-bone flap or folding pipe mud-water separation filler in the settling region; Not only quickened mud-water separation, and reverse flap of lower floor or folding pipe, can play the flow velocity buffering and reach the water inlet uniformly distributing; And help forming the dynamic suspension sludge blanket; Can give full play to strong flocculation of this suspended layer mud and adsorption, tiny the material that gets into the settling region is adsorbed build up to increase, thereby strengthened not effective clearance of free settling mud of this part; In addition, horizontal herring-bone flap or folding tube packing also help and avoid sludge concentration increase suddenly or minimizing to cause the mud rising phenomenon.
Optimize specific embodiment below in conjunction with three; Utility model essence is further understood in exemplary illustration and help; But the embodiment detail only is in order utility model to be described, not to be represented utility model design whole technical schemes down, therefore should not be construed as the total technical scheme of utility model to be limited; Some are In the view of the technician; The unsubstantiality that does not depart from utility model design increases and/or changes, and simple the change or replacement of technical characterictic to have same or similar technique effect for example all truely used novel protected scope.
Description of drawings
Fig. 1 is a kind of embodiment structural representation.
Fig. 2 is Figure 1A-A sectional structure synoptic diagram.
Fig. 3 is another kind of embodiment structural representation.
Fig. 4 is Fig. 3 A-A sectional structure synoptic diagram.
Fig. 5 is another embodiment sectional structure synoptic diagram.
Embodiment
Embodiment 1: referring to Fig. 1,2, the utility model integrated oxidation ditch is separated symmetric double ditch arranged side by side through partition wall 14, and there is semicircle the connection at two ends, form the circulation oxidation ditch.Have alternate some groups in single ditch, every group has alternate staggered up and down dividing plate 17.1,17.2 and 17.3 to be separated to form up-flow district 3 and to fall stream district 4, with and subsequent biochemical zone 16, form oxidation ditch A
2/ O technology adds the commercial hollow colyliform short tube floating stuffing 2 that accounts for ditch volume ratio 20% in the oxidation ditch.3 bottoms, up-flow district are equipped with aerating tube-type micropore device 8; The oxidation ditch treatment scheme is not held the built-in settling region of being separated by partition wall 6 12, and the settling region width accounts for oxidation furrow width 2/3, reserves to be circulated throughout circulation road 18; Asymmetric horizontal herring-bone flap mud-water separation filler 13 is arranged in the settling region; It is about 1/3 that filler lower part height accounts for upper part, and settling region herring-bone flap mud-water separation filler below side wall water-in has filler to stop grid 9, stops floating stuffing to get into the settling region.
Dispose of sewage and get into oxidation ditch by water-in 1; Form upwelling by bottom, up-flow district aerator 8 aerations; Form the circulation impellent, turn to then and fall stream district 4, and the biochemical zone 16 of rear end; Through alternate some groups of up-flows, stream, biochemical formation fall, promote in the ditch muddy water and floating stuffing and flow along the direction of arrow and form circulation A
2/ O technology is not held to oxidation ditch, and a part gets into settling region 12 through falling 4 belows, stream district by the side, and 2 of floating stuffings are stopped not get into the settling region and suspend and rise that a part of cycling stream passage 18 through between settling region and oxidation ditch continues the circulation circulation by block lattice 9.Get into settling region sewage through horizontal herring-bone flap mud-water separation filler 13 reverse flow mud-water separation, clear liquid is effluent weir 11 collections through top, settling region, discharge oxidation ditches by water port 7.The mud that settling region 12 produces, a part are back to adjacent up-flow district 3 through mud return line 15 and continue circulation, and another part passes through valve control shore pipe 10 discharge gutters outer (by the technology controlling and process spoil disposal) with the excess sludge form.During arts demand, can also be through valve control drain 5 with oxidation ditch emptying.
Embodiment 2: referring to Fig. 3,4, and like embodiment 1, wherein settling region 12 and the wide setting of oxidation ditch; The bottom, settling region is unsettled; And reserve between bottom of trench and be circulated throughout circulation road 19, precipitate and separate mud can be crossed bottom web plate 20 and discharge in company with the cycling stream backflow, and valve control shore pipe 10 is arranged on the bottom, settling region.Precipitate and separate mud quantity of reflux and sludge volume are distributed by the control of mud discharging mouth 10 valves according to processing requirement.
Embodiment 3: referring to Fig. 5; Like embodiment 2 (also can be) like example 1; The up-flow district, stream district falls, biochemical zone below (oxidation ditch middle and lower part) has dividing plate 21 to be separated into two layers up and down, aerating apparatus 8 is arranged on the bottom, upper strata, dividing plate 21 belows 22 are the oxygen-starved area; The mobile rear 23 of treatment solution is an anaerobic zone, and 24 is the aerobic biochemical district.
To those skilled in the art; Under this patent design and specific embodiment enlightenment, some distortion that can directly derive or associate from this patent disclosure and general knowledge, those of ordinary skills will recognize also can adopt additive method; Or the substituting of known technology commonly used in the prior art; And the equivalence of characteristic changes or modification, and the mutual various combination between characteristic for example changes aeration up-flow zone position, biochemical reaction section length; Can form A/O technology, increase the A that water-in can form multipoint water feeding
2/ O, A/O technology, the change of aerating apparatus in floating stuffing form, the water, oxidation ditch is pressed treatment process, sewage length changes; Oxidation ditch shape changes; Or the like unsubstantiality change, can be employed equally, can both realize this patent representation function and effect; Launch for example no longer one by one to describe in detail, all belong to this patent protection domain.
Claims (5)
1. integrated oxidation ditch comprises oxidation ditch pond body, the aerating apparatus of the end or middle and lower part; The built-in separation of pond body settling region; It is characterized in that in the body of oxidation ditch pond the suspension type filler being arranged, the settling region water-in has the filler barrier at least, built-in horizontal herring-bone flap in settling region or folding pipe mud-water separation filler.
2. according to the said integrated oxidation ditch of claim 1, it is characterized in that horizontal herring-bone flap or folding pipe mud-water separation filler lower floor's flap or folding length of tube are the 1/3-1/5 on upper strata.
3. according to the said integrated oxidation ditch of claim 1, it is characterized in that between built-in settling region and oxidation ditch circulation channel being arranged.
4. according to the said integrated oxidation ditch of claim 1, it is characterized in that the oxidation ditch middle and lower part has dividing plate to be separated into two layers up and down, aerating apparatus is arranged on the bottom, upper strata.
5. according to claim 1,2,3 or 4 said integrated oxidation ditchs, it is characterized in that the suspension type filler is a hollow colyliform short tube floating stuffing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201220246U CN202297243U (en) | 2011-04-24 | 2011-04-24 | Integrated oxidation ditch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201220246U CN202297243U (en) | 2011-04-24 | 2011-04-24 | Integrated oxidation ditch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202297243U true CN202297243U (en) | 2012-07-04 |
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ID=46366181
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201220246U Expired - Lifetime CN202297243U (en) | 2011-04-24 | 2011-04-24 | Integrated oxidation ditch |
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| CN (1) | CN202297243U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102134124A (en) * | 2011-04-24 | 2011-07-27 | 江苏一环集团有限公司 | Integrated oxidation ditch |
| CN105293834A (en) * | 2015-11-25 | 2016-02-03 | 成都泰之源环保科技有限公司 | Integrated iods reactor |
| CN110835158A (en) * | 2019-06-10 | 2020-02-25 | 凌志环保股份有限公司 | Oxidation ditch type integrated sewage treatment device |
-
2011
- 2011-04-24 CN CN2011201220246U patent/CN202297243U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102134124A (en) * | 2011-04-24 | 2011-07-27 | 江苏一环集团有限公司 | Integrated oxidation ditch |
| CN105293834A (en) * | 2015-11-25 | 2016-02-03 | 成都泰之源环保科技有限公司 | Integrated iods reactor |
| CN110835158A (en) * | 2019-06-10 | 2020-02-25 | 凌志环保股份有限公司 | Oxidation ditch type integrated sewage treatment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120704 Effective date of abandoning: 20130501 |
|
| RGAV | Abandon patent right to avoid regrant |