CN201334396Y - Center island type wastewater treatment equipment of integrated circulatory biological reactor - Google Patents
Center island type wastewater treatment equipment of integrated circulatory biological reactor Download PDFInfo
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- CN201334396Y CN201334396Y CNU2008202059279U CN200820205927U CN201334396Y CN 201334396 Y CN201334396 Y CN 201334396Y CN U2008202059279 U CNU2008202059279 U CN U2008202059279U CN 200820205927 U CN200820205927 U CN 200820205927U CN 201334396 Y CN201334396 Y CN 201334396Y
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Abstract
Center island type wastewater treatment equipment of an integrated circulatory biological reactor adopts the structure that an aerobic area (5), an anoxic area (2), an anaerobic area (8), a mixing area (9) and a sedimentation tank (10) are arranged in an O-shaped exterior wall and have wastewater circularly flows therein; the O-shaped sedimentation tank (10) is positioned at the middle part in the exterior wall (1); a C-shaped right partition wall (3) is arranged on the right side beside the area between the sedimentation tank (10) and the exterior wall (11), and a left partition wall (13) is arranged on the left side; the area formed between the right partition wall (3) and the exterior wall (1) is the anoxic area (2); the area formed between the right partition wall (3) and the sedimentation tank (10) is the aerobic area (5); the area formed between the left partition wall (13) and the exterior wall (1) is the anaerobic area (8); and the area formed between the left partition wall (13) and the sedimentation tank (10) is the mixing area (9). The utility model has the advantages of compact structure, convenient operation, control and maintenance, less required labor, easy realized remote automatic control and better denitrification and dephosphorization effects.
Description
Technical field
The utility model relates to a kind of sewage treatment equipment, is the integrated circulating biological reactor of a kind of central island formula sewage treatment equipment specifically.
Background technology
In the present integrated biochemical processing, with the research of oxidation ditch and sequencing batch reactor (SBR) and most widely used, wherein SBR is a batch reactor, and the continous way bio-reactor is then based on integrated oxidation ditch.The oxidation ditch sewage disposal technology is the twentieth century exploitation fifties, mainly is made up of oxidation ditch, second pond and mud return-flow system, and it is a kind of form of activated sludge treatment method.The device that utilizes the oxidation ditch treatment technology at first is Paasche Wei Er (Pasveer) oxidation ditch device, after this develops various multi-form oxidation ditch devices again, as Caro plug (Carrousel) oxidation ditch device, and opel (Orbal) oxidation ditch device etc.The common feature of these oxidation ditch devices is: oxidation ditch is the plane enclosed irrigation canals and ditches that circulate, and uses a kind of aeration and agitator with direction control to promote mixed solution (sewage and active sludge are formed) along continuous straight runs and circulate continuously in the closed type channel; The residence time of sewage and microorganism is long, and the load of organic pollutant is low; Oxidation ditch can stably reach effective removal of organism and total suspended solid by the operation and maintenance of low limit.Settling tank and oxidation ditch branch are built, and by sludge pump precipitating sludge are back in the oxidation ditch.Its main drawback is that the depth of water is 1～3 meter usually because the ability of aerator is limit, and the degree of depth of oxidation ditch is more shallow, and floor space is big.Therefore, be restricted in land resources country use in short supply.Later 1980s, the U.S. has developed a kind of oxidation ditch sewage treatment---integrated oxidation ditch (Integraloxidation Ditch is called for short IDO).It is that a kind of sewage aeration with conventional oxidation ditch device purifies and the precipitation of mixed solution-separates merge into a single whole (settling tank is set directly in the oxidation ditch raceway groove), flows with the no blowback of realization mud.The used method of this method and conventional oxidation ditch device is compared, and has saved the mud return-flow system.Its shortcoming is: second pond is built in the recirculation channel, has increased flow resistance, to having relatively high expectations of aerator.The operation adjusting function is poor.Remove settling tank is combined to the reactor China and foreign countries, do not have other structures of change substantially, therefore still have the excessive problem of floor space.
Summary of the invention
The purpose of this utility model provides the integrated circulating biological reactor of the central island formula sewage treatment equipment that a kind of each functional zone subregion is obvious, floor space is relatively little and running cost is lower.
To achieve the above object, the technical solution adopted in the utility model is:
The integrated circulating biological reactor of a kind of central island formula sewage treatment equipment, the aerobic zone that the exterior wall the inside of O type has formation waste water to circulate, the oxygen-starved area, anaerobic zone, mixing zone and settling tank, the settling tank of O type is positioned at exterior wall the inside medium position, there is the right partition wall of C type on the right side between settling tank and the exterior wall, there is left partition wall in the left side, the zone that forms between right partition wall and the exterior wall is the oxygen-starved area, and the zone that forms between the settling tank is an aerobic zone, the zone that forms between left side partition wall and the exterior wall is an anaerobic zone, and the zone that forms between the settling tank is the mixing zone, the aerobic zone bottom is laid with aeration head, is positioned at the aerobic zone of the same side, the inlet of oxygen-starved area and anaerobic zone is separately installed with the stirring impeller.
Described settling tank is supported built on stilts by pillar stiffener.
The body of wall extension downwards that this settling tank is positioned at mixing zone one side links to each other with the exterior wall base plate, and there is an inclined-plane that extends inwards the body of wall inboard.
Described settling tank bottom is the awl bucket that is arranged in parallel, and the awl bucket is for falling platform-type structure.
The utlity model has following advantage:
1. compact construction of the present utility model, succinct, operation is very easy with maintenance, and required labor force is few, and is easy to realize remote auto control.
2. settling tank of the present utility model is installed in the aerobic zone, rounded laying, need not the outer second pond of building, the platform-type structure of falling of bucket is bored in the settling tank bottom, can effectively alleviate and reduce the turbulent flow influence of bottom flow, simultaneously because the negative pressure that bottom flow produces in flowing makes mud can realize having reduced floor space and working cost from refluxing settling tank, and help keeping the dissolved oxygen of water outlet, guarantee effluent quality.Lay aeration head near aerobic zone C type partition wall left bottom, uniform aeration can reduce the turbulence effect of aeration to settling tank, also can reduce the resistance of fluid flow.
3. aerobic and anoxic of the present utility model, functional zone subregions such as anaerobism are clear and definite, and control helps finishing synchronously organic removal and biological carbon and phosphorous removal easily.At aerobic zone, mixed solution has been an oxygen condition, degradation of organic substances and ammonia nitrogen is oxidized to nitric nitrogen (nitrate nitrogen and nitrite nitrogen) effectively, and absorb phosphorus and then dephosphorization.Being anoxic condition in the oxygen-starved area, is carbon source with the organism, under the effect of denitrifying bacteria is nitrogen and removing from water with nitrate-nitrogen reduction.At anaerobic zone, under no dissolved oxygen and the nitric nitrogen condition, polyP bacteria carries out the release of phosphorus.The part of can also degrading simultaneously can degrade COD and organism, and organonitrogen transformed ammonia nitrogen.
4. the utility model helps mixed solution repeatedly circulation between aerobic-anoxic-anaerobism, thereby reaches the effect of better denitrogenation dephosphorizing.
Description of drawings
Fig. 1 is a floor map of the present utility model;
Fig. 2 is a diagrammatic cross-section of the present utility model.
Embodiment
With reference to Fig. 1, Fig. 2, the integrated circulating biological reactor of a kind of central island formula sewage treatment equipment, the aerobic zone 5 that exterior wall 1 the inside of O type has formation waste water to circulate, oxygen-starved area 2, anaerobic zone 8, mixing zone 9 and settling tank 10, the settling tank 10 of O type is positioned at exterior wall 1 the inside medium position, there is the right partition wall 3 of C type on the right side between settling tank 10 and the exterior wall 1, there is left partition wall 13 in the left side, the zone that forms between right partition wall 3 and the exterior wall 1 is oxygen-starved area 2, and the zone that forms between the settling tank 10 is an aerobic zone 5, the zone that forms between left side partition wall 13 and the exterior wall 1 is an anaerobic zone 8, and the zone that forms between the settling tank 10 is mixing zone 9, aerobic zone 5 bottoms are laid with aeration head 4, are positioned at the aerobic zone 5 of the same side, the inlet of oxygen-starved area 2 and anaerobic zone 8 is separately installed with and stirs impeller 6.2 effusive partially mixed liquid enter into anaerobic zone 8 from anaerobic zone 8 bottoms from the oxygen-starved area, flow into oxygen-starved area 2 from anaerobic zone 8 tops then.
Described settling tank 10 is supported built on stilts by pillar stiffener 18, the window that links for settling tank 10 and aerobic zone 5 between the pillar stiffener 18.Body of wall 17 extension downwards that this settling tank 10 is positioned at mixing zone 9 one sides links to each other with exterior wall base plate 15, and there is an inclined-plane 16 that extends inwards body of wall 17 inboards, and the horizontal sextant angle on this inclined-plane 16 is 55～65 °.Settling tank 10 bottoms are the awl bucket 11 that is arranged in parallel, and awl bucket 11 is for falling platform-type structure, and the conical surface and the horizontal plane angle of awl bucket 11 are 60～75 °.
Water-in 7 is opened on exterior wall 1, corresponding anaerobic zone 8 tops, and overflow weir 14 is arranged at settling tank 10 tops, has water outlet 12 on the overflow weir 14.
Principle of work of the present utility model is: sewage enters the anaerobic zone 8 that microbial population (active sludge) is housed by water-in 7, and the microbial population in anaerobic zone 8 ingress are stirred under the promotion of impeller 6 with it carries out thorough mixing and flows into oxygen-starved area 2.2 mixed solutions are anoxic condition in the oxygen-starved area, under the effect of denitrifying bacteria nitric nitrogen and nitrite nitrogen are reduced to nitrogen and remove from water; Denitrification is a carbon source with the organism, as COD, therefore can simultaneously partial organic substances be removed; A part enters mixing zone 9 and mixes with mixed solution from aerobic zone 5 then, and a part enters anaerobic zone 8, obtains degrading at anaerobic zone 8 quite a few organism, carries out the release of phosphorus simultaneously.In aerobic zone 5, carry out oxygenic aeration by the aeration head of laying along partition wall 34 that is installed in the bottom, make mixed solution be oxygen condition, thereby carry out the nitration reaction of organic matter removal and ammonia nitrogen and absorb the phosphorus dephosphorization in aerobic zone 5, nitration product then is circulated to and carries out denitrification denitrogenation in the oxygen-starved area 2.
A part of mixed solution enters settling tank 10 by the awl bucket 11 of settling tank 10 bottoms in aerobic zone 5 simultaneously, absorption at the sludge suspension layer, carry out solid-liquid separation under the action of gravity of collision and active sludge self, mixed solution is after solid-liquid separation, discharge by water outlet 12 through overflow weir 14 with the supernatant liquor of water inlet equivalent, mud is then under the drive of self gravitation and settling tank 10 bottom streaming fluids, certainly be back in the aerobic zone 5 by awl bucket 11, and with mixed solution under the promotion of stirring impeller 6 in this device the aerobic-anoxic-anaerobic of realization repeatedly circulate, sewage is purified.
Claims (6)
1, the integrated circulating biological reactor of a kind of central island formula sewage treatment equipment, exterior wall [1] the inside that it is characterized in that the O type has and forms the aerobic zone [5] that waste water circulates, oxygen-starved area [2], anaerobic zone [8], mixing zone [9] and settling tank [10], the settling tank of O type [10] is positioned at exterior wall [1] the inside medium position, there is the right partition wall [3] of C type on the right side between settling tank [10] and the exterior wall [1], there is left partition wall [13] in the left side, the zone that forms between right partition wall [3] and the exterior wall [1] is oxygen-starved area [2], and the zone that forms between the settling tank [10] is aerobic zone [5], the zone that forms between left side partition wall [13] and the exterior wall [1] is anaerobic zone [8], and the zone that forms between the settling tank [10] is mixing zone [9], aerobic zone [5] bottom is laid with aeration head [4], is positioned at the aerobic zone [5] of the same side, the inlet of oxygen-starved area [2] and anaerobic zone [8] is separately installed with and stirs impeller [6].
2, the integrated circulating biological reactor of central island formula according to claim 1 sewage treatment equipment, it is built on stilts to it is characterized in that described settling tank [10] is supported by pillar stiffener [18].
3, the integrated circulating biological reactor of central island formula according to claim 1 and 2 sewage treatment equipment, it is characterized in that body of wall [17] that this settling tank [10] is positioned at mixing zone [9] one sides extends downwards links to each other with exterior wall base plate [15], and there is the inclined-plane [16] of extension inwards body of wall [17] inboard.
4, the integrated circulating biological reactor of central island formula according to claim 3 sewage treatment equipment is characterized in that described settling tank [10] bottom is the awl bucket [11] that is arranged in parallel, and awl bucket [11] is for falling platform-type structure.
5, the integrated circulating biological reactor of central island formula according to claim 3 sewage treatment equipment, the horizontal sextant angle that it is characterized in that this inclined-plane [16] is 55～65 °.
6, the integrated circulating biological reactor of central island formula according to claim 4 sewage treatment equipment is characterized in that the conical surface and the horizontal plane angle of awl bucket [11] is 60～75 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202059279U CN201334396Y (en) | 2008-12-20 | 2008-12-20 | Center island type wastewater treatment equipment of integrated circulatory biological reactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202059279U CN201334396Y (en) | 2008-12-20 | 2008-12-20 | Center island type wastewater treatment equipment of integrated circulatory biological reactor |
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| CN201334396Y true CN201334396Y (en) | 2009-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008202059279U Expired - Fee Related CN201334396Y (en) | 2008-12-20 | 2008-12-20 | Center island type wastewater treatment equipment of integrated circulatory biological reactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010106A (en) * | 2010-12-02 | 2011-04-13 | 福州城建设计研究院 | Integrated high-efficiency oxidation ditch and sewage treatment process thereof |
| CN108002537A (en) * | 2018-01-31 | 2018-05-08 | 武汉都市环保工程技术股份有限公司 | Oxidation ditch integrated sewage treating apparatus and system |
-
2008
- 2008-12-20 CN CNU2008202059279U patent/CN201334396Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010106A (en) * | 2010-12-02 | 2011-04-13 | 福州城建设计研究院 | Integrated high-efficiency oxidation ditch and sewage treatment process thereof |
| CN108002537A (en) * | 2018-01-31 | 2018-05-08 | 武汉都市环保工程技术股份有限公司 | Oxidation ditch integrated sewage treating apparatus and system |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091028 Termination date: 20101220 |