CN202576103U - Aeration tank - Google Patents
Aeration tank Download PDFInfo
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- CN202576103U CN202576103U CN2012201663592U CN201220166359U CN202576103U CN 202576103 U CN202576103 U CN 202576103U CN 2012201663592 U CN2012201663592 U CN 2012201663592U CN 201220166359 U CN201220166359 U CN 201220166359U CN 202576103 U CN202576103 U CN 202576103U
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- aeration tank
- aeration
- gel
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- head
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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
Abstract
The utility model relates to an aeration tank and is characterized in that gel-sinking-resistant hole mesh (3) is arranged above, around or below a parallel face of an aeration head (2) on the bottom of the aeration tank (1), one side of a water inlet of the aeration tank (1) is further provided with a sewage inlet pipeline (4), the sewage inlet pipeline penetrates through a sewage inlet pump (5), one part of the sewage inlet pipeline is connected to the lower portion of the gel-sinking-resistant hole mesh (3) on the bottom of the aeration tank (1), and the other part of the sewage inlet pipeline is directly connected to the water inlet. One side of a water outlet of the aeration tank (1) is further provided with a backflow pipeline (6), and the backflow pipeline is connected to a lower portion of the gel-sinking-resistant hole mesh (3) on the bottom of the aeration tank (1) through a sewage backflow pump (7). A filter screen (8) and/or a filter cloth are added to the water outlet of the aeration tank (1). The aeration tank is suitable for occasions such as sewage treatment by using polymer immobilized microorganism gel such as polyvinyl alcohol so as to improve sewage treatment efficiency.
Description
Technical field
The utility model relates to sewage disposal technology, relates in particular to the technological method that adopts polymkeric substance immobilized microorganism hydrogel to carry out WWT, is specifically related to a kind of aeration tank.
Background technology
Be used to handle the mikrobe of waste water,, can be divided into two types of suspension growth type and set growth forms according to its growth pattern.The suspension growth type mainly is represented as activated sludge process, and it has become the effective treating method of municipal effluent, organic industrial sewage and the main stream approach of biological sewage treatment at present.The set growth form, except that the part mikrobe from immobilization, people extensively adopt immobilized microorganism technique to realize the set growth of mikrobe.
China extensively adopts activated sludge process to carry out WWT at present; Its whole process flow roughly is described below: after sewage gets into Sewage Plant, at first to sewage regulate and distribute, pH adjustment etc., then carry out debris retaining, oil removing, adjusting nitrogen phosphorus etc.; Get into the aeration tank according to certain flow with returned sluge afterwards; Aeration tank structural representation commonly used is as shown in Figure 1, and a large amount of aeration heads 3 are equipped with in 5 bottoms in the aeration tank, and the sewer pipeline 1 of sewage and returned sluge 5 one ends from the aeration tank flows into return sludge line 2; And under the effect of aeration, in the pond, generally stopped 5～24 hours; Flow out in accomplishing the water outlet pipeline 4 of biochemical back by aeration tank 5 the other ends, effusive sewage and mud mix and get into settling tank and carry out separating of water and mud, and the mud part after the separation is got back to the aeration tank from return sludge line 2; Redundance carries out processing back outward transports such as drying and dehydrating, and the water after the separation is through further processing back reuse or enter the river.
Yet exist microorganism concn low in this technology, the residence time is long, and the place floor space is big; The reaction tank volume is big, and the solid-liquid separation difficulty is low to the processing power of many objectionable impuritiess; Produce a large amount of excess sludges and many problems such as sludge bulking often take place, wherein the handling problem of excess sludge is the most serious, because of meeting causes secondary pollution; Subsequent treatment process such as sewage work need squeeze excess sludge and anhydrate, dry, burning, this part expense accounts for 60% of Sewage Plant working cost, therefore; Its technical process is quite loaded down with trivial details, and the application processes cost is high.
Immobilized microorganism technique; A new technique in the modern biological project field that to be nineteen sixties grown up by enzyme immobilization technology; Exactly with physics or chemical process with the mikrobe restriction be positioned at certain material or himself on; In the certain space zone, it is active to make it keep inherent, can be repeated and a kind of basic fundamental of using continuously.Its characteristics are that it optionally filters out dominant bacteria and fixes, can purifying with keep high-efficiency strain, constitute a kind of efficiently, miniature organism reactor assembly fast; Its microorganism concn is high, and speed of response is fast, and stability is strong; Anti-murder by poisoning ability is strong, and mikrobe is run off few.Thereby should technology compare with direct (suspension) biological process, have obvious superiority.
The polyvinyl alcohol immobilized microorganism gel, torpescence on chemical property, nontoxicity; Good biocompatibility; Mechanical property is good, and water regain is high, and microorganism concn is high in the gel; Containing mikrobe in the gel has 100,000, adopt its microorganism concn in the Gel Treatment sewage system be carry out a biological disposal upon at present bacteria concentration 3-6 doubly.So, adopt the polyvinyl alcohol immobilized microorganism gel to carry out WWT, can significantly improve sewage treating efficiency, reduce processing costs, reduce floor space, can significantly reduce or optimize simultaneously follow-up and sludge treatment behind the biochemical aeration.And will be effectively with polymkeric substance immobilized microorganism gel application such as Z 150PH in WWT; Present activated sludge process aeration tank also has more problem to solve, like the deficiency of aeration rate, the gel disturbance is insufficient, gel sinks easily, the loss of gel etc.
Along with energy-saving and emission-reduction have become globalization tendency; The further raising that further increasing that national environmental protection drops into and sewage effluent require; Adopt immobilized microorganism technique to come substitute activated sludge to dispose of sewage; Particularly adopt polymkeric substance immobilized microorganism Gel Treatment Technology of Sewage such as Z 150PH, the problems that solve traditional activated sludge process become very favourable.Therefore, also extremely urgent to polymkeric substance immobilized microorganism gel application such as Z 150PH in the design again of the aeration tank of WWT.
The utility model content
The purpose of the utility model is to provide a kind of aeration tank, and this aeration tank can be used for adopting in the sewage treatment process that polymkeric substance immobilized microorganism gel carries out.
The purpose of the utility model is to realize like this:
A kind of aeration tank is characterized in that: above the aeration head parallel surface of aeration tank bottom, on every side or below install anti-gel sinking hole pattern additional; Water-in one side is provided with a sewage water inlet pipe line in addition in the aeration tank, and this pipeline is through the sewage intake pump, and a part is connected to the anti-gel lower counterbore side off the net in bottom, aeration tank, and another part is directly connected to water-in; Water outlet one side is provided with a reflux pipeline in addition in the aeration tank, and this pipeline is connected to the anti-gel lower counterbore side off the net in bottom, aeration tank through the sewage backflow pump; The aeration tank water outlet installs filter screen and/or filter cloth additional.
Actual production is in service, when aeration tank gravity flow water inlet makes the insufficient or anaerobic treatment sewage aeration quantity not sufficient of gel disturbance with to the abundant disturbance of gel the time, can open the sewage intake pump, adjusts amount of inlet water and water quality as required; When, gel disturbance deficiency insufficient when aeration or effluent quality need further to improve, can open the sewage backflow pump, and adjust the backflow water yield as required; When dress filter screen and filter cloth appearance obstruction, can connect backwashing water and clean.
Above-mentioned anti-gel sinking hole pattern, it is 1～4 mm that its aperture is selected for use, is preferably 2～3 mm, so that under the situation of proof strength, keep MBC maximal breathing capacity; Be installed at the anti-gel sinking hole pattern of aeration head parallel surface below, growing most with the distance of aeration head parallel surface is 50mm.
The filter screen that above-mentioned aeration tank water outlet installs additional, its aperture is 4 mm to the maximum, is preferably 2～4 mm; It is 10 μ m～1mm that the filter cloth that above-mentioned aeration tank water outlet installs additional, its aperture are selected for use.
Above-mentioned aeration tank water outlet also can only install filter screen additional, and it is 1～2 mm that its aperture is selected for use.
The aeration head of bottom, above-mentioned aeration tank will be adjusted according to the loadings of gel, when the loadings of gel little; Be generally less than 5% o'clock of aeration tank volume; Select the little micro porous aeration head in aperture for use, each aeration head distance can be relaxed, and makes each aeration head service area can be greater than 0.5m
2, even can be greater than 1.5m
2When the loadings of gel is big, generally greater than 5% o'clock of the aeration tank volume, then select the aeration head of larger aperture for use, the aeration head distance will shorten, and each aeration head service area preferably is not more than 0.5m
2
Above-mentioned aeration tank water outlet can be deepened to widen, and the rate of output water that its flow area is selected according to the filter screen filter cloth calculates the back and amplifies 30～100%, for example, is 360m at flooding quantity in the practice
3In the aeration tank of/h, needing the outlet flow rate is 0.1m/s, then can calculate the filter screen flow area and be: 360/ (0.1 * 3600)=1 m
2, the actual area that adopts should be 1.3～2 m
2The filter screen of effective hole area, do not go out to avoid the filter screen filter cloth to stop up the back overflow; , want the filter screen filter cloth timely water to carry out back flushing when stopping up.
Dispose of sewage when not up to standard when adopting the one-level aeration tank; Further handle one or more levels aeration tank of can connecting again as required, and wherein each aeration tank can be the same also can be according to circumstances adjusted the loadings of aeration tank volume, gel, operation process etc.
The utlity model has following beneficial effect:
Aeration tank in the utility model is applicable to that polymkeric substance immobilized microorganism gels such as adopting Z 150PH carries out sewage treatment process, has realized that gel is always in the aeration tank in the sewage treatment process; Need not add mud and carry out the mud backflow; The sludge quantity that produces and handle is less, has dwindled the volume of settling bowl, sludge thickener, has reduced process steps such as dehydration squeezing, drying; Capital construction cost and working cost have been significantly reduced; Social benefit is obvious, and it also is applicable to an amount of polyvinyl alcohol immobilized microorganism gel of adding in activated sludge process, improves situations such as sewage treating efficiency.
Description of drawings
Fig. 1 is used to adopt activated sludge process to carry out the structural representation of the aeration tank of WWT for of the prior art.
Fig. 2 is the structural representation of the aeration tank among the utility model embodiment 1.
Fig. 3 is the structural representation of the aeration tank among the utility model embodiment 2.
Embodiment
Through embodiment the utility model is carried out concrete description below; Be necessary to be pointed out that at this present embodiment only is used for the utility model is further specified; Can not be interpreted as the restriction to the utility model protection domain, the person skilled in the art in this field can make some nonessential improvement and adjustment to the utility model according to the content of above-mentioned the utility model.
Shown in Figure of description 2, a kind of aeration tank installs anti-gel sinking hole pattern 3 additional above aeration head 2 parallel surfaces of 1 bottom, aeration tank; 1 water-in, one side is provided with a sewage water inlet pipe line 4 in addition in the aeration tank, and this pipeline is through sewage intake pump 5, and a part is connected to anti-gel sinking hole pattern 3 belows, 1 bottom, aeration tank, and another part is directly connected to water-in; 1 water outlet, one side is provided with a reflux pipeline 6 in addition in the aeration tank, and this pipeline is connected to anti-gel sinking hole pattern 3 belows, 1 bottom, aeration tank through sewage backflow pump 7; Aeration tank 1 water outlet installs filter screen 8 and filter cloth 9 additional; Wherein, anti-gel sinking hole pattern 3, it is 1 mm that its aperture is selected for use, the distance that is installed at aeration head 2 parallel surfaces below is the 50mm place; The aperture of the filter screen 8 that aeration tank 1 water outlet installs additional is 4 mm, and the aperture of filter cloth 9 is 10 μ m; The aeration head 2 of 1 bottom, aeration tank is selected the little micro porous aeration head in aperture for use, and each aeration head 2 distance can be relaxed, and makes each aeration head service area arrive 0.5m
2Aeration tank 1 water outlet is widened, and the rate of output water that its flow area is selected according to filter screen 8, filter cloth 9 calculates the back and amplifies 30%.
In the practical application, in this aeration tank, adopt the polyvinyl alcohol immobilized microorganism gel to carry out WWT, its gel loadings is little, less than 5% of aeration tank volume.
Shown in Figure of description 3, a kind of aeration tank installs anti-gel sinking hole pattern 3 additional below aeration head 2 parallel surfaces of 1 bottom, aeration tank; 1 water-in, one side is provided with a sewage water inlet pipe line 4 in addition in the aeration tank, and this pipeline is through sewage intake pump 5, and a part is connected to anti-gel sinking hole pattern 3 belows, 1 bottom, aeration tank, and another part is directly connected to water-in; 1 water outlet, one side is provided with a reflux pipeline 6 in addition in the aeration tank, and this pipeline is connected to anti-gel sinking hole pattern 3 belows, 1 bottom, aeration tank through sewage backflow pump 7; Aeration tank 1 water outlet installs filter screen 8 and filter cloth 9 additional; Wherein, anti-gel sinking hole pattern 3, its aperture is 5 mm, is installed at apart from 40mm place, aeration head parallel surface below; The aperture of the filter screen 8 that aeration tank 1 water outlet installs additional is 2 mm, and the aperture of filter cloth 9 is 1mm; The aeration head 2 of 1 bottom, aeration tank is selected the aeration head of larger aperture for use, and 2 distances of aeration head are short, and each aeration head 2 service area is 0.5m
2Aeration tank 1 water outlet is widened, and the rate of output water that its flow area is selected according to filter screen 8, filter cloth 9 calculates the back and amplifies 100%.
In the practical application, in this aeration tank, adopt the polyvinyl alcohol immobilized microorganism gel to carry out WWT, its gel loadings is big, is 15% of aeration tank volume.
A kind of aeration tank, its anti-gel sinking hole pattern 3 apertures are 3 mm; Aeration tank 1 water outlet only installs filter screen 8 additional, and it is 2 mm that its aperture is selected for use; The aeration head 2 of 1 bottom, aeration tank is selected the little micro porous aeration head in aperture for use, and the distance that each aeration head 2 relaxes is so that each aeration head 2 service area reaches 1.0m
2Be as the criterion; Aeration tank 1 water outlet is widened, and the rate of output water that its flow area is selected according to filter screen 8 calculates the back and amplifies 50%, and other structure is identical with the aeration tank structure among the embodiment 1 in addition.
Claims (10)
1. aeration tank is characterized in that: in the aeration tank aeration head (2) the parallel surface top of (1) bottom, on every side or the below install anti-gel sinking hole pattern (3) additional; (1) water-in one side is provided with a sewage water inlet pipe line (4) in addition in the aeration tank, and this pipeline is through sewage intake pump (5), and a part is connected to anti-gel sinking hole pattern (3) below, bottom, aeration tank (1), and another part is directly connected to water-in; (1) water outlet one side is provided with a reflux pipeline (6) in addition in the aeration tank, and this pipeline is connected to anti-gel sinking hole pattern (3) below, bottom, aeration tank (1) through sewage backflow pump (7); Aeration tank (1) water outlet installs filter screen (8) and/or filter cloth (9) additional.
2. aeration tank according to claim 1 is characterized in that: it is 1～4 mm that said anti-gel sinking hole pattern (3), its aperture are selected for use; The said anti-gel sinking hole pattern (3) that is installed at aeration head (2) parallel surface below, growing most with the distance of aeration head (2) parallel surface is 50mm.
3. aeration tank according to claim 1 is characterized in that: it is 2～3 mm that said anti-gel sinking hole pattern (3), its aperture are selected for use; The said anti-gel sinking hole pattern (3) that is installed at aeration head (2) parallel surface below, growing most with the distance of aeration head (2) parallel surface is 50mm.
4. according to the arbitrary described aeration tank of claim 1-3, it is characterized in that: the filter screen (8) that said aeration tank (1) water outlet installs additional, its aperture is 4 mm to the maximum; It is 10 μ m～1mm that the filter cloth (9) that said aeration tank (1) water outlet installs additional, its aperture are selected for use.
5. according to the arbitrary described aeration tank of claim 1-3, it is characterized in that: the filter screen (8) that said aeration tank (1) water outlet installs additional, its aperture is 2～4 mm; It is 10 μ m～1mm that the filter cloth (9) that said aeration tank (1) water outlet installs additional, its aperture are selected for use.
6. according to the arbitrary described aeration tank of claim 1-3, it is characterized in that: the filter screen (8) that said aeration tank (1) water outlet only installs additional, its aperture is 1～2 mm.
7. aeration tank according to claim 4; It is characterized in that: the aeration head (2) of said aeration tank (1) bottom; When the loadings of gel less than aeration tank (1) volume 5% the time, select the little micro porous aeration head in aperture for use, each aeration head (2) service area is greater than 0.5m
2When the loadings of gel greater than aeration tank (1) volume 5% the time, then select the aeration head of larger aperture for use, each aeration head (2) service area is not more than 0.5m
2
8. aeration tank according to claim 5; It is characterized in that: the aeration head (2) of said aeration tank (1) bottom; When the loadings of gel less than aeration tank (1) volume 5% the time, select the little micro porous aeration head in aperture for use, each aeration head (2) service area is greater than 0.5m
2When the loadings of gel greater than aeration tank (1) volume 5% the time, then select the aeration head of larger aperture for use, each aeration head (2) service area is not more than 0.5m
2
9. aeration tank according to claim 6; It is characterized in that: the aeration head (2) of said aeration tank (1) bottom; When the loadings of gel less than aeration tank (1) volume 5% the time, select the little micro porous aeration head in aperture for use, each aeration head (2) service area is greater than 0.5m
2When the loadings of gel greater than aeration tank (1) volume 5% the time, then select the aeration head of larger aperture for use, each aeration head (2) service area is not more than 0.5m
2
10. aeration tank according to claim 1 is characterized in that: said aeration tank (1) water outlet, to deepen to widen, and the rate of output water that its flow area is selected according to filter screen (8), filter cloth (9) calculates the back and amplifies 30～100%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201663592U CN202576103U (en) | 2012-04-19 | 2012-04-19 | Aeration tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201663592U CN202576103U (en) | 2012-04-19 | 2012-04-19 | Aeration tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202576103U true CN202576103U (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201663592U Expired - Fee Related CN202576103U (en) | 2012-04-19 | 2012-04-19 | Aeration tank |
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| Country | Link |
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| CN (1) | CN202576103U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108314177A (en) * | 2017-01-17 | 2018-07-24 | 中国石化集团四川维尼纶厂 | A kind of polyvinyl alcohol immobilized microorganism Gel Treatment sewage aerator and aeration method |
| CN108314176A (en) * | 2017-01-17 | 2018-07-24 | 中国石化集团四川维尼纶厂 | A kind of polyvinyl alcohol immobilized microorganism Gel Treatment sewage aerator and aeration method |
| CN113636660A (en) * | 2021-08-03 | 2021-11-12 | 华南理工大学 | Corridor type aeration tank |
-
2012
- 2012-04-19 CN CN2012201663592U patent/CN202576103U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108314177A (en) * | 2017-01-17 | 2018-07-24 | 中国石化集团四川维尼纶厂 | A kind of polyvinyl alcohol immobilized microorganism Gel Treatment sewage aerator and aeration method |
| CN108314176A (en) * | 2017-01-17 | 2018-07-24 | 中国石化集团四川维尼纶厂 | A kind of polyvinyl alcohol immobilized microorganism Gel Treatment sewage aerator and aeration method |
| CN113636660A (en) * | 2021-08-03 | 2021-11-12 | 华南理工大学 | Corridor type aeration tank |
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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: 20121205 Termination date: 20210419 |
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| CF01 | Termination of patent right due to non-payment of annual fee |