CN2661682Y - Surface aeration type integrative oxidation ditch - Google Patents
Surface aeration type integrative oxidation ditch Download PDFInfo
- Publication number
- CN2661682Y CN2661682Y CNU2003201205504U CN200320120550U CN2661682Y CN 2661682 Y CN2661682 Y CN 2661682Y CN U2003201205504 U CNU2003201205504 U CN U2003201205504U CN 200320120550 U CN200320120550 U CN 200320120550U CN 2661682 Y CN2661682 Y CN 2661682Y
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- Prior art keywords
- zone
- oxidation ditch
- oxygen
- district
- surface aeration
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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 with efficient utilization of occupied area by using a surface aerating machine as aeration equipment in sewage treatment. A selected zone, an anaerobic zone, an anoxic zone, an aerobic zone of biochemical treatment stage in sewage treatment and a settling zone in solid-liquid separation are arranged together from inside to outside in a ring manner. Communication points are positioned between the zones nearby. The service water depth of the aerator is efficiently improved by arranging the aerator and a plug flow machine as well as a reverse flow tube being arranged under the aerator. The flow velocity of oxidation ditch is ensured by using the plug flow machine at the same time.
Description
Technical field
The utility model belongs to the environment protection sewage processing technology field, specifically is exactly the aeration gallery in the sewage disposal technology and the settling tank device of mud-water separation.
Background technology
Present oxidation ditch sewage treatment technology, the settling tank of annular aeration gallery and mud-water separation need be set respectively, the settling tank of aeration gallery and mud-water separation is independently to be arranged in the bigger territorial scope each other, caused the bigger shortcoming of the overall floor space of oxidation ditch treatment system, simultaneously because oxidation ditch is subjected to the restriction of aerator, Chi Shen is more shallow, has also caused the utilization ratio of land area of one unit low.
Technology contents
The purpose of this utility model is a kind of integrated oxidization trench system that adopts surface aerating machine as aerator of design, makes oxidation ditch effectively utilize floor space as much as possible.
For achieving the above object, the technical scheme that the surface aeration type integrated oxidation ditch that the utility model provides adopts is: the settling region of selection district, anaerobic zone, oxygen-starved area, aerobic zone and the mud-water separation of sewage disposal mesophytization processing section outwards is arranged together from the lining in the ring-type mode, between each adjacent Qu Yuqu the connection position is arranged.
After adopting above-mentioned design, with the selection pond that original palpus is provided with separately, anaerobic zone, anoxic pond, Aerobic Pond and second pond combine, and simultaneously, have realized between aerobic zone and the oxygen-starved area that motorless nitrification liquid refluxes, and has greatly saved power charge.Select the pond, detesting, disposing impeller in the anoxic pond, kept the thorough mixing of sewage in the pond and mobile, inverted umbrella-shaped aeration machine and impeller are set in Aerobic Pond, guide shell is set below aerator, improve the service depth of water of aerator effectively, utilized impeller to guarantee the flow velocity in the oxidation ditch simultaneously.Water outlet in the oxidation ditch enters the settling tank of exterior annular, and settling tank adopts vertical-flow structure, and built-in filler has further reduced floor space.
Summary of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A sectional view among Fig. 1;
Fig. 3 is the B-B sectional view among Fig. 1;
Fig. 4 is the C-C sectional view among Fig. 1.
Embodiment
The settling region 50 of selection district 10, anaerobic zone 20, oxygen-starved area 30, aerobic zone 40 and the mud-water separation of the sewage disposal mesophytization processing section in the surface aeration type integrated oxidation ditch that the utility model provides outwards is arranged together from the lining in the ring-type mode, between each adjacent Qu Yuqu the connection position is arranged.
Suction culvert is reached by the bottom of whole integrated oxidation ditch in the distribution well 60 of selecting 10 middle parts, district, and each district is separated by body of wall shape parts, adopt the top to cover between each district or in, the mode of bottom opening up and down winding type be communicated with.
Partition wall middle part between the settling region 50 of aerobic zone 40 and mud-water separation offers communicating aperture, and muddy water divides the outer wall place of the settling region 50 of mud to be provided with spoil disposal 70 and posticum 80.Described mudhole (70) and posticum (80) are provided with two to three pairs, are evenly arranged in the outer wall place of settling region (50).Can carry out the collection of mud and water easily like this.
The settling region 50 of the selection district 10 of sewage disposal mesophytization processing section, anaerobic zone 20, oxygen-starved area 30, aerobic zone 40 and mud-water separation outwards is arranged together from the lining in circular mode, be provided with two aerators of falling the umbrella 90 in 40 in described aerobic zone, the aerator of falling the umbrella 90 is positioned at the U-shaped partition wall zone that opening points to aerobic zone 40 1 sides.Oxygen-starved area 30 comprises the U-shaped partition wall 31 of opening positioned opposite, arranges arc partition wall 32 therebetween, the curvature of arc partition wall 32 and its position roughly conform to apart from the curvature of width between centers for circle, between oxygen-starved area 30 and aerobic zone 40 the zone in be provided with partition wall 100.
The below of the described aerator of falling the umbrella 90 is provided with guide shell 91, is provided with impeller 110 in selecting district 10, anaerobic zone 20, oxygen-starved area 30, aerobic zone 40.
Further specify principle of work of the present utility model below in conjunction with accompanying drawing.
The muddy water that the mixed solution of sewage and returned sluge at first enters whole structures center distributes well 60, enters the selection district 10 that distributes the outer ring of well again, and selecting the main effect in district 10 is to prevent sludge bulking.Oxygen concn is zero in selecting district 10, and the micro-nitrate in the second pond returned sluge can be removed soon.Under this environment, the thread fungus growth is very slow, and returned sluge can adsorb nearly all remaining COD in the sewage, and biological polyP bacteria is also brought into play partial action in selecting district 10 simultaneously.Palpus configuration high-speed impeller 110 is to guarantee to select the mixed effect of sewage in the district 10 in selecting district 10.
Sewage is after selecting district 10, enter the anaerobic zone of selecting district's 10 outer shrouds, muddy water mixed solution is by selecting district 10 to enter anaerobic zone 20, under the anaerobic condition that does not have dissolved oxygen and nitric nitrogen to exist, facultative bacteria can change into solvability BOD low molecule tunning, biological polyP bacteria is these low molecule fermented products of preferentially adsorbed, and with its be transported in the cell, with changing into cell internal carbon source storage thing, required energy derive in the hydrolysis of poly-phosphorus and the hydrolysis of endocellular sugar, and cause phosphatic release.Discharge phosphatic polyP bacteria through anaerobic state and under good oxygen condition, have very strong suction phosphorus ability, the phosphorus amount that absorb, storage exceeds the growth demand, and synthetic new polyP bacteria cell, produce rich phosphorus sludge, by the discharging of excess sludge phosphorus is gone out from system.For the flow velocity in the assurance anaerobic zone 20 and the mixed effect of sewage, in anaerobic zone 20, impeller 110 must be set.
Sewage is behind anaerobic zone 20, enter the oxygen-starved area 30 of oxidation ditch, muddy water mixed solution enters oxidation ditch oxygen-starved area 30 by anaerobic zone 20 gravity flows, part polyP bacteria utilizes the final electron acceptor(EA) of the middle nitrate conduct of the mixed solution (internal reflux brings) of subsequent technique to decompose intracellular PHB, the energy that produces is used for the absorption of phosphorus and synthesizing of poly-phosphorus, the nitrate that the while denitrifying bacteria can utilize internal reflux to bring, and biodegradable organism carries out denitrification as denitrifying carbon source in the sewage, reaches the purpose of part decarburization and denitration, dephosphorization.Impeller 110 must be set equally to guarantee flow velocity in oxygen-starved area 30.
Sewage enters the oxidation ditch part of same ring behind oxygen-starved area 30, this oxidation ditch aeration partly adopts inversed umbrella type surface aeration machine 90, inversed umbrella type surface aerating machine 90 has stronger aeration agitation and plug-flow effect, and owing to sewage in the oxidation ditch is formed naturally aerobic zone 40 and oxygen-starved area 30 apart from the distance of aerator 90 is different, and finish the nitrification and denitrification reaction.This inversed umbrella type surface aerating machine 90 is arranged with guide shell 91, so that the service depth of water of aerator can reach 7 meters, and for keeping the flow velocity of sewage in the oxidation ditch, must the configuration impeller in the stage casing of oxidation ditch.This oxidation ditch has the push flowing and the complete characteristic of mixed type reaction tank concurrently, has zone aerobic, that anoxic alternately occurs, has nitrated, biological phosphate-eliminating, denitrifying condition.At oxidation ditch aerobic zone polyP bacteria except absorbing, utilizing the biodegradable organic in the sewage, mainly be the PHB that stores in the decomposer, the energy that produces can be for self growth and breeding, but the dissolved phosphorus in the active absorption surrounding environment in addition, and the form excess storage in vivo to gather phosphorus, the phosphorus of absorption is much larger than the phosphorus of its release.Ammonia nitrogen in the sewage is converted into nitrite and nitrate at aerobic zone 40 by Nitrosomas, Nitromonas simultaneously.Utilize N in nitrite and the nitrate at oxygen-starved area 30 denitrifying bacterias
3+And N
5+(be reduced to N
2) as the electron acceptor(EA) in the energy metabolism, O
2-Generate H as hydrogen acceptor
2O and OH
-Basicity, organism provides energy and obtains oxidation-stabilized as carbon source and electron donor.
Sewage is after biochemical treatment, and the settling region 50 that finally flows into outmost turns carries out mud-water separation, and this settling region 50 is taked ring structure equally, partly is integrated with biochemistry.It adopts the sedimentary principle of perpendicular stream, and in the pond configuration swash plate filler, to increase deposition efficiency, sewage is after the annular water distribution groove is collected, and the settling tank that is entered the configuration filler by the bottom carries out precipitation process, and water outlet is collected the back through outermost annular collection trough again and discharged, after mud is collected by the bottom sludge bucket, enter sludge sump, part mud refluxes, and all the other mud send between sludge dewatering to be handled.
Claims (7)
1, a kind of surface aeration type integrated oxidation ditch, it is characterized in that: the settling region (50) of the selection district (10) of sewage disposal mesophytization processing section, anaerobic zone (20), oxygen-starved area (30), aerobic zone (40) and mud-water separation outwards is arranged together from the lining in the ring-type mode, between each adjacent Qu Yuqu the connection position is arranged.
2, surface aeration type integrated oxidation ditch according to claim 1, it is characterized in that: suction culvert is reached in the distribution well (60) of selecting middle part, district (10) by the bottom of whole integrated oxidation ditch, each district is separated by body of wall shape parts, adopt the top to cover between each district or in, the circuitous up and down shape of mode of bottom opening is communicated with.
3, surface aeration type integrated oxidation ditch according to claim 1 and 2, it is characterized in that: the partition wall middle part between the settling region (50) of aerobic zone (40) and mud-water separation offers communicating aperture, and the outer wall place of the settling region of mud-water separation (50) is provided with mudhole (70) and posticum (80).
4, surface aeration type integrated oxidation ditch according to claim 1 and 2, it is characterized in that: the settling region (50) of the selection district (10) of sewage disposal mesophytization processing section, anaerobic zone (20), oxygen-starved area (30), aerobic zone (40) and mud-water separation outwards is arranged together from the lining with circular, be provided with two aerators of falling the umbrella (90) in described aerobic zone in (40), the aerator of falling the umbrella (90) is positioned at the U-shaped partition wall zone that opening points to aerobic zone (40) one sides.
5, surface aeration type integrated oxidation ditch according to claim 1 and 2, it is characterized in that: the selection district (10) of sewage disposal mesophytization processing section, anaerobic zone (20), oxygen-starved area (30), the settling region (50) of aerobic zone (40) and mud-water separation outwards is arranged together from the lining in circular mode, oxygen-starved area (30) comprises the U-shaped partition wall (31) of opening positioned opposite, arrange arc partition wall (32) therebetween, the curvature of arc partition wall (32) and its position roughly conform to apart from the curvature of width between centers for circle, between oxygen-starved area (30) and aerobic zone (40) the zone in be provided with partition wall (100).
6, surface aeration type integrated oxidation ditch according to claim 1 and 2, it is characterized in that: the below of the described aerator of falling the umbrella (90) is provided with guide shell (91), is provided with impeller (110) in selecting district (10), anaerobic zone (20), oxygen-starved area (30), aerobic zone (40).
7, surface aeration type integrated oxidation ditch according to claim 3 is characterized in that: described mudhole (70) and posticum (80) are provided with two to three pairs, are evenly arranged in the outer wall place of settling region (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201205504U CN2661682Y (en) | 2003-11-07 | 2003-11-07 | Surface aeration type integrative oxidation ditch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201205504U CN2661682Y (en) | 2003-11-07 | 2003-11-07 | Surface aeration type integrative oxidation ditch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2661682Y true CN2661682Y (en) | 2004-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2003201205504U Expired - Lifetime CN2661682Y (en) | 2003-11-07 | 2003-11-07 | Surface aeration type integrative oxidation ditch |
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| CN (1) | CN2661682Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100467401C (en) * | 2006-01-26 | 2009-03-11 | 宜兴市凌志环保有限公司 | Integrated oxidation ditch of Orbal |
| CN102030412A (en) * | 2010-11-05 | 2011-04-27 | 苏州市创新净化有限公司 | Rotary dephosphorization and denitrification membrane biological treatment device and technique method thereof |
| CN102086059A (en) * | 2010-12-08 | 2011-06-08 | 安徽国祯环保节能科技股份有限公司 | Deflector of oxidation-ditch vertical surface aeration machine |
| CN102020394B (en) * | 2009-09-17 | 2012-09-05 | 东莞市红树林环保科技有限公司 | Sewage treatment system |
| CN108128890A (en) * | 2017-12-29 | 2018-06-08 | 陕西科技大学 | The incorgruous Orbal oxidation ditches flowing state regulating structure of three ditch flows of one kind and method |
-
2003
- 2003-11-07 CN CNU2003201205504U patent/CN2661682Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100467401C (en) * | 2006-01-26 | 2009-03-11 | 宜兴市凌志环保有限公司 | Integrated oxidation ditch of Orbal |
| CN102020394B (en) * | 2009-09-17 | 2012-09-05 | 东莞市红树林环保科技有限公司 | Sewage treatment system |
| CN102030412A (en) * | 2010-11-05 | 2011-04-27 | 苏州市创新净化有限公司 | Rotary dephosphorization and denitrification membrane biological treatment device and technique method thereof |
| CN102086059A (en) * | 2010-12-08 | 2011-06-08 | 安徽国祯环保节能科技股份有限公司 | Deflector of oxidation-ditch vertical surface aeration machine |
| CN102086059B (en) * | 2010-12-08 | 2012-10-31 | 安徽国祯环保节能科技股份有限公司 | Deflector of oxidation-ditch vertical surface aeration machine |
| CN108128890A (en) * | 2017-12-29 | 2018-06-08 | 陕西科技大学 | The incorgruous Orbal oxidation ditches flowing state regulating structure of three ditch flows of one kind and method |
| CN108128890B (en) * | 2017-12-29 | 2021-01-05 | 陕西科技大学 | Three-ditch water flow counter-flow Orbal oxidation ditch flow state adjusting structure and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20131107 Granted publication date: 20041208 |