CN202482175U - Denitrification dephosphorization sewage treatment device - Google Patents
Denitrification dephosphorization sewage treatment device Download PDFInfo
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- CN202482175U CN202482175U CN2012200889799U CN201220088979U CN202482175U CN 202482175 U CN202482175 U CN 202482175U CN 2012200889799 U CN2012200889799 U CN 2012200889799U CN 201220088979 U CN201220088979 U CN 201220088979U CN 202482175 U CN202482175 U CN 202482175U
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Abstract
The denitrification dephosphorization sewage treatment device comprises a reaction pond and a settling pond. The reaction pond comprises an oxygen deficiency section, an anaerobic section and an aerobic section which are separated by separating plates, wherein the head end of the oxygen deficiency section is provided with a water inlet pipe used for supplying sewage, the tail end of the oxygen deficiency section is communicated with the head end of the anaerobic section, the tail end of the anaerobic section is communicated with the head end of the aerobic section, and the middle lower portion of the aerobic section is communicated with the middle lower portion of the settling pond. The middle upper portion of the settling pond is provided with a material-filtering layer, the upper portion of the settling pond is provided with a water outlet pipe used for discharging treated sewage, a sludge zone at the bottom of the settling pond is respectively provided with a sludge outlet pipe and a sludge return pipe, and an outlet of the sludge return pipe is communicated with the head end of the oxygen deficiency section. The denitrification dephosphorization sewage treatment device is arranged in a sequence of oxygen deficiency- anaerobism- aerobism-settlement to carry out denitrification and dephosphorization operations, and has the advantages of simple structure, convenient operation and low operation cost.
Description
Technical field
The utility model relates to technical field of sewage, particularly a kind of denitrogenation dephosphorizing waste disposal plant.
Background technology
Along with rapid economy development, the water contamination phenomenon is more and more serious, and particularly a large amount of dischargings of nitrogen, phosphorus cause the eutrophication of water body.What in sewage treatment process, have denitrogenation dephosphorizing effect preferably is anoxic-anaerobic-aerobic technology, and the flora of biological carbon and phosphorous removal system mainly is made up of nitrifier and denitrifying bacteria, polyP bacteria.At aerobic section, nitrobacteria through the biological nitration effect, changes into nitrate salt with the ammonia nitrogen in the sewage; In the anoxic section, the nitrate salt that denitrifying bacterium is brought backflow into changes into nitrogen and escapes in the atmosphere through biological denitrification, thereby reaches the purpose of denitrogenation; In anaerobism section polyP bacteria releases phosphorus, and in aerobic section polyP bacteria excess Absorption of Phosphorus, and phosphorus is removed through the discharging of excess sludge.
Chinese patent " waste disposal plant " (201110183618.2) discloses a kind of waste disposal plant, and this device has simple in structure, the organic removal rate advantages of higher, but there is following defective in this Patent equipment: 1. do not have denitrogenation, phosphorus removal functional; 2. water inlet and water outlet are prone to form short circuit; 3. full pond aeration, running cost is higher; 4. aeration head is prone to stop up.
The utility model content
The technical problem that the utility model will solve is: in order to overcome the deficiency of above-mentioned technology, provide a kind of simple in structure, easy to operate, the denitrogenation dephosphorizing waste disposal plant that running cost is low.
The utility model solves the technical scheme that its technical problem adopted: a kind of denitrogenation dephosphorizing waste disposal plant; Comprise reaction tank and settling tank; Reaction tank comprises anoxic section, anaerobism section and the aerobic section that is separated into through dividing plate, and said anoxic section head end is provided with the water inlet pipe that is used to infeed sewage, and the anoxic section is terminal to be communicated with anaerobism section head end; The anaerobism section is terminal to be communicated with the aerobic section head end; The aerobic section middle and lower part is communicated with the middle and lower part of settling tank, and said settling tank middle and upper part is provided with filter material layer, and said settling tank top is provided with the rising pipe that is used to discharge the sewage after the processing; The mud district of said settling tank bottom is provided with mud discharging pipe and mud return line respectively, and said mud return line outlet is communicated with anoxic section head end.
In order to prolong the reaction times, strengthen treatment effect, be unlikely to sewage and comparatively fast flow through reaction zone; Said anoxic section, anaerobism section and aerobic section all are divided into first district and second district through dividing plate; First district is communicated with second district, and anoxic section first district's head end is communicated with water inlet pipe, and anoxic section second district is terminal to be communicated with anaerobism section first district's head end; Anaerobism section second district is terminal to be communicated with aerobic section first district's head end, and middle and lower part, aerobic section second district is communicated with the settling tank middle and lower part.
In order to make sewage and mud thorough mixing, improve treatment effect, also be provided with in said anoxic section and the anaerobism section and be convenient to the sufficient whipping appts of WWT.
In order to prevent that aeration head is prone to stop up, said aerobic section top is equipped with the surface aerating machine that is used for oxygenation stirring and plug-flow.
In order to improve the settling tank deposition efficiency, said settling tank bottom is taper type wide at the top and narrow at the bottom, and said taper type bottom is provided with sludge reflux pump, and said sludge reflux pump is communicated with the mud return line import.
As preferably, said filter material layer is a fine sand stone filter material layer.
The beneficial effect of the utility model is that the utility model comes laying equipment and device according to anoxic-anaerobic-aerobic-sedimentary order, is positioned at the WWT head end to the anoxic section; Through the end to end method of each section, increase the reaction times of its sewage in each zone simultaneously, strengthen sewage treatment capacity; And only at the aerobic section aeration, complete relatively pond aeration is saved cost; Surface aerating machine is arranged on aerobic section top again, has avoided a blast aeration susceptible to plugging problem.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the structural principle diagrammatic top view of preferred embodiment of the denitrogenation dephosphorizing waste disposal plant of the utility model;
Fig. 2 is the structural principle diagrammatic cross-sectional view of preferred embodiment of the denitrogenation dephosphorizing waste disposal plant of the utility model.
Among the figure: 1. anoxic section, 11. water inlet pipes, 2. anaerobism section, 3. aerobic section, 31. surface aerating machines, 4. settling tank, 41. filter material layers, 42. rising pipes, 43. mud discharging pipes, 44. mud return lines.
Embodiment
Combine accompanying drawing that the utility model is done further detailed explanation now.These accompanying drawings are the synoptic diagram of simplification, the substruction of the utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
Preferred embodiment like the denitrogenation dephosphorizing waste disposal plant of Fig. 1～2 described the utility model; Comprise reaction tank and settling tank 4; Reaction tank comprises anoxic section 1, anaerobism section 2 and the aerobic section 3 that is separated into through dividing plate, and anoxic section 1, anaerobism section 2 and aerobic section 3 all are divided into first district and second district through dividing plate, and first district is communicated with second district; Anoxic section 1 first district's head end is communicated with water inlet pipe 11; Anoxic section 1 second district is terminal to be communicated with anaerobism section 2 first district's head ends, and anaerobism section 2 second districts are terminal to be communicated with aerobic section 3 first district's head ends, and middle and lower part, aerobic section 3 second district is communicated with settling tank 4 middle and lower parts; Settling tank 4 middle and upper parts are provided with fine sand stone filter material layer 41; Settling tank 4 tops are provided with the rising pipe 42 that is used to discharge the sewage after the processing, and the mud district of settling tank 4 bottoms is provided with mud discharging pipe 43 and mud return line 44 respectively, and mud return line 44 outlets are communicated with anoxic section 1 head end.Also be provided with in anoxic section 1 and the anaerobism section 2 and be convenient to the sufficient whipping appts of WWT, can strengthen treatment effect through stirring, aerobic section 3 tops are equipped with the surface aerating machine 31 that is used for oxygenation stirring and plug-flow; So just can not produce a blast aeration blocking problem because of permanent the use; Further, in order to strengthen deposition efficiency, settling tank 4 bottoms are taper type wide at the top and narrow at the bottom; The taper type bottom is provided with sludge reflux pump, and sludge reflux pump is communicated with mud return line 44 imports.
The utility model comes installation aiding device according to anoxic-anaerobic-aerobic-sedimentary order; Be laid in the front of anaerobism section 2 to anoxic section 1, anoxic section 1 is positioned at the head end of technology, allows denitrifying bacteria preferentially to obtain carbon source; Strengthened the denitrogenation ability of system; Get into the higher aerobic section 3 of biochemical efficiency behind the polyP bacteria anaerobic phosphorus release in the anaerobism section 2, the suction phosphorus power that it under anaerobic forms can be utilized more fully, has " hungry effect " advantage.Middle and lower part from the water autoprecipitation pond 4 of aerobic section 3 flows into, and fine sand stone filter material layer 41 is laid in settling tank 4 middle and upper parts, and top is clear water zone, and fine sand stone filter material layer 41 is every to be changed once at a distance from half a year or 1 year; Reflux and discharge in 4 bottoms, mud autoprecipitation pond of WWT postprecipitation.Aerobic section 3 adopts surface aerating machine 31 aeration aeratings, stirring, plug-flow, and surface aerating machine 31 is fixed on the upper bracket, surface aerating machine 31 simple installations, and cost is low, and Operation and Maintenance is simple, problems such as no aeration head obstruction.
With above-mentioned desirable embodiment according to the utility model is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this utility model technological thought.The technical scope of this utility model is not limited to the content on the specification sheets, must confirm its technical scope according to the claim scope.
Claims (6)
1. denitrogenation dephosphorizing waste disposal plant; It is characterized in that: comprise reaction tank and settling tank (4); Said reaction tank comprises anoxic section (1), anaerobism section (2) and the aerobic section (3) that is separated into through dividing plate, and said anoxic section (1) head end is provided with the water inlet pipe (11) that is used to infeed sewage, and anoxic section (1) is terminal to be communicated with anaerobism section (2) head end; Anaerobism section (2) is terminal to be communicated with aerobic section (3) head end; Aerobic section (3) middle and lower part is communicated with the middle and lower part of settling tank (4), and said settling tank (4) middle and upper part is provided with filter material layer (41), and said settling tank (4) top is provided with the rising pipe (42) that is used to discharge the sewage after the processing; The mud district of said settling tank (4) bottom is provided with mud discharging pipe (43) and mud return line (44) respectively, and said mud return line (44) outlet is communicated with anoxic section (1) head end.
2. denitrogenation dephosphorizing waste disposal plant as claimed in claim 1; It is characterized in that: said anoxic section (1), anaerobism section (2) and aerobic section (3) all are divided into first district and second district through dividing plate; First district is communicated with second district; Anoxic section (1) first district's head end is communicated with water inlet pipe (11); Anoxic section (1) second district is terminal to be communicated with anaerobism section (2) first district's head ends, and anaerobism section (2) second districts are terminal to be communicated with aerobic section (3) first district's head ends, and middle and lower part, aerobic section (3) second district is communicated with settling tank (4) middle and lower part.
3. denitrogenation dephosphorizing waste disposal plant as claimed in claim 1 is characterized in that: also be provided with in said anoxic section (1) and the anaerobism section (2) and be convenient to the sufficient whipping appts of WWT.
4. denitrogenation dephosphorizing waste disposal plant as claimed in claim 1 is characterized in that: said aerobic section (3) top is equipped with the surface aerating machine (31) that is used for oxygenation stirring and plug-flow.
5. denitrogenation dephosphorizing waste disposal plant as claimed in claim 1 is characterized in that: said settling tank (4) bottom is taper type wide at the top and narrow at the bottom, and said taper type bottom is provided with sludge reflux pump, and said sludge reflux pump is communicated with mud return line (44) import.
6. denitrogenation dephosphorizing waste disposal plant as claimed in claim 1 is characterized in that: said filter material layer (41) is a fine sand stone filter material layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200889799U CN202482175U (en) | 2012-03-12 | 2012-03-12 | Denitrification dephosphorization sewage treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200889799U CN202482175U (en) | 2012-03-12 | 2012-03-12 | Denitrification dephosphorization sewage treatment device |
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| Publication Number | Publication Date |
|---|---|
| CN202482175U true CN202482175U (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200889799U Expired - Fee Related CN202482175U (en) | 2012-03-12 | 2012-03-12 | Denitrification dephosphorization sewage treatment device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103172221A (en) * | 2013-03-27 | 2013-06-26 | 印峰 | Sewage treatment device |
| CN104085985A (en) * | 2013-04-01 | 2014-10-08 | 上海海洋大学 | Method for removing nitrogen in aquatic product culture water |
| CN104163543A (en) * | 2014-07-28 | 2014-11-26 | 漳州职业技术学院 | Sewage treatment device and sewage treatment method |
| CN110498562A (en) * | 2019-08-08 | 2019-11-26 | 苏州苏净环保工程有限公司 | Treatment method of high-concentration stripping liquid wastewater |
-
2012
- 2012-03-12 CN CN2012200889799U patent/CN202482175U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103172221A (en) * | 2013-03-27 | 2013-06-26 | 印峰 | Sewage treatment device |
| CN104085985A (en) * | 2013-04-01 | 2014-10-08 | 上海海洋大学 | Method for removing nitrogen in aquatic product culture water |
| CN104163543A (en) * | 2014-07-28 | 2014-11-26 | 漳州职业技术学院 | Sewage treatment device and sewage treatment method |
| CN104163543B (en) * | 2014-07-28 | 2015-12-02 | 漳州职业技术学院 | A kind of waste disposal plant and sewage water treatment method thereof |
| CN110498562A (en) * | 2019-08-08 | 2019-11-26 | 苏州苏净环保工程有限公司 | Treatment method of high-concentration stripping liquid wastewater |
| CN110498562B (en) * | 2019-08-08 | 2022-05-13 | 苏州苏净环保工程有限公司 | Treatment method of high-concentration stripping liquid wastewater |
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|---|---|---|---|
| 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: 20121010 Termination date: 20150312 |
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| EXPY | Termination of patent right or utility model |