CN203451279U - Activated sludge sewage treatment device - Google Patents
Activated sludge sewage treatment device Download PDFInfo
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- CN203451279U CN203451279U CN201320555022.5U CN201320555022U CN203451279U CN 203451279 U CN203451279 U CN 203451279U CN 201320555022 U CN201320555022 U CN 201320555022U CN 203451279 U CN203451279 U CN 203451279U
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- aeration
- waste disposal
- active sludge
- disposal plant
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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 belongs to the technical field of sewage treatment, and particularly relates to an activated sludge sewage treatment device. The sewage treatment device comprises a tank body, wherein the tank body comprises an aeration zone and a settling zone, wherein the aeration zone is positioned at the center of the tank body and is formed by fences; the settling zone is positioned around the aeration zone; a flow cross section which is communicated with the aeration zone and the settling zone is arranged between the bottom parts of the fences and the bottom surface of the tank body. According to the sewage treatment device as well as an activated sludge sewage treatment method thereof, which are provided by the utility model, two basic steps (aeration and settling) of the activated sludge sewage treatment method are simultaneously completed in one tank body, so that a great amount of civil engineering structures are reduced, and the intensity requirement on most of the structures is lowered, and further the manufacturing cost of building civil engineering structures is reduced greatly; additionally, the manufacturing cost of equipment purchase and installation is also reduced; the running expense is reduced; moreover, because aeration and settling can be carried out simultaneously, the working efficiency is improved.
Description
Technical field
The utility model belongs to technical field of sewage, relates in particular to a kind of active sludge waste disposal plant.
Background technology
Active sludge sewage water treatment method, it is a kind of traditional method of sewage disposal, since coming out before 100 years, up to now be the main methods of the good trade effluent of sanitary sewage, municipal effluent and multiple biochemical always, there is the advantages such as method is reliable, effluent quality good, working cost is low.
Traditional active sludge sewage disposal at present is mainly processed sewage by aeration and precipitation in practical engineering application, yet, because aeration and precipitation must be carried out respectively, thereby in current existing active sludge sewage water treatment method, the pond body for aeration and precipitation mostly divides and builds, be that aeration tank and settling tank are independent separately, and need to have special arrangement, as scraping and sucking machine, sludge reflux pump etc., for returned sluge, keep the sludge concentration in aeration tank.Even if there is situation about building jointly, be all also minute two pond independent operatings, and adopt backflow facility, as mud scraper, reflux pump etc. by the sludge reflux of settling region to aeration zone.Because two ponds minute are built, cause structures civil engineering structure cost higher, needed device is more simultaneously, thus cost is higher, and working cost is also higher.In addition, also someone proposes aeration and precipitation to be incorporated in a pond body and to complete, as SBR method, although the method is in the body of same pond, but aeration and precipitation must minute sequential be carried out, and can not complete simultaneously, when one group of pond is during in aeration phase, precipitate phase still can only carry out in other pond body, causes like this working efficiency lower.Thereby, be badly in need of a kind of new active sludge waste disposal plant and method and overcome above-mentioned defect.
Utility model content
(1) technical problem that will solve
The purpose of this utility model is to provide the active sludge waste disposal plant that a kind of cost is low, working cost is low and working efficiency is high.
(2) technical scheme
For solving the problems of the technologies described above, the utility model provides a kind of active sludge waste disposal plant, comprise pond body, wherein, described pond body comprises and is positioned at the aeration zone that described pool center is formed by enclosing, and be positioned at settling region around, described aeration zone, between the bottom surface of the bottom of described enclosing and described pond body, be provided with for being communicated with the water-carrying section of described aeration zone and described settling region.
Wherein, described pond body adopts the earth structure of paripheral zone side slope, and bottom surface and the side slope of described pond body are covered by anti seepage membrane or Steel Concrete.
Wherein, described enclosing comprises column and is fixed on the HDPE film on described column.
Wherein, the height of described water-carrying section is the degree of depth of 0.1 times of described pond body.
Wherein, in the bottom of described enclosing, be provided with for regulating the baffle plate of the suspension type adjustment height of water-carrying section height.
Wherein, the surrounding at body top, described pond sets out water channel or perforation rising pipe.
Wherein, in described settling region, be provided with the residual sludge pump that too much mud is discharged.
Wherein, in described aeration zone, be provided with anaerobic zone.
Wherein, in described aeration zone, be respectively equipped with aerobic zone, oxygen-starved area, and be positioned at described aerobic zone by the return sludge pump of oxygen-starved area described in the muddy water mixed solution suction after aeration.
(3) beneficial effect
The active sludge waste disposal plant that technique scheme provides, two basic steps (aeration and precipitation) of active sludge sewage water treatment method are incorporated in a pond body and are completed simultaneously, take region in pond is aeration zone, neighboring area is settling region, between the bottom of aeration zone and the bottom surface of pond body, be provided with for being communicated with the water-carrying section of aeration zone and settling region, make the mud of settling region be back to aeration zone by the flow turbulence effect outside in water-carrying section, to substitute the devices such as scraping and sucking machine in traditional active sludge sewage water treatment method and reflux pump, a large amount of civil engineering structures have been reduced like this, and reduced the strength demand of most of structure, structures civil engineering structure cost is significantly reduced, the cost that has reduced device buying simultaneously and installed, and reduced working cost, and because aeration and precipitation can be carried out simultaneously, therefore improved working efficiency.In addition, this apparatus structure is simple, easily manufactured.Further, pond body adopts the form of side slope around, can directly utilize geotechnological Chi Ti ，Bing pond body and around in side slope, lay anti seepage membrane or adopt the skeleton construction of suitable thickness for antiseepage, and construction investment is significantly reduced.
Accompanying drawing explanation
Fig. 1 is the orthographic plan of a preferred embodiment of active sludge waste disposal plant;
Fig. 2 is the structural representation of the active sludge waste disposal plant in Fig. 1;
Wherein: 1-aeration zone; 2-settling region; 3-mud moisture interface; 4-outlet canal; 5-enclosing; 6-residual sludge pump; 7-baffle plate; 8-column; 9-gas blower; 10-aeration head.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is further described.Following examples are used for illustrating the utility model, but are not used for limiting scope of the present utility model.
Fig. 1 and a preferred embodiment that Figure 2 shows that active sludge waste disposal plant of the present utility model.According to this embodiment, this treatment unit comprises pond body, is positioned at Ti Nei aeration zone 1, pond and settling region 2.
Wherein, pond body be one with the geotechnological Chi Ti of periphery side slope, above at the bottom of side slope and pond, cover anti seepage membrane.It should be noted that, at the bottom of pond and side slope also can adopt the skeleton construction of suitable thickness, owing to having pond body as support, concrete only plays impervious and maintenance effect, thereby wall thickness and reinforcing bar density can reduce greatly, preferably the thickness of skeleton construction is 10cm.Chi Shen adopts 3-6m dark, and the concrete degree of depth is determined according to the water yield and geologic condition; Side slope adopts 45-60 degree, and concrete angle is determined according to soil property and method demand.
Aeration zone 1 is the bottom surface of take the bottom surface of pond body as border or being slightly smaller than pond body, the central zone being surrounded by enclosing 5; Settling region 2 is that the section forming between enclosing and pond body four sides side slope is roughly leg-of-mutton region.Between enclosing 5 bottoms and body bottom surface, pond, leave the water-carrying section of suitable height, to guarantee the muddy water exchange of aeration zone and settling region.Because aeration zone 1 is communicated with settling region 2, thereby there is not pressure reduction between the interior outside of enclosing 5, so to can greatly reducing for doing the requirement of intensity of the material of enclosing 5.Enclosing in the utility model preferably adopts high density polyethylene(HDPE) (High Density Polyethylene, referred to as " HDPE ") 1 interval, edge, aeration zone, mould material ， center suitably apart from steel concrete or steel pipe being set as column 8, and spacing can be 10m left and right.HDPE film adopts rivet or alternate manner to be fixed on column 8.It should be noted that, enclosing 5 also can adopt other material, as steel reinforced concrete, brick, steel plate etc. are made.
The height of water-carrying section is according to water yield size calculative determination.It is very few that too small meeting causes flow turbulence effect to bring the sludge quantity of aeration zone 1 into, makes aeration zone 1 mud enter in a large number settling region, causes settling region 2 loads too high, thereby affect treatment effect.Excessively can cause flow turbulence effect excessively strong, make the interior sludge concentration in aeration zone 1 too high, flow turbulence effect meeting simultaneously causes the sedimentation effect of settling region 2 unstable, and outlet effect is affected.Preferably the height of water-carrying section adopts the degree of depth of approximately 0.1 times of pond body.In addition, the baffle plate 7 of suspension type adjustment height is set in the bottom of enclosing 5, in order to regulate the height of the water-carrying section between enclosing 5 bottoms and body bottom surface, pond, thereby regulate the muddy water of aeration zone 1 and settling region 2 to exchange degree, and then regulate the sludge quantity of aeration zone 1 and settling region 2.
The aeration mode of aeration zone 1 can adopt the end multiple conventional aeration mode at present such as expose to the sun, show to expose to the sun.In this embodiment, the bottom of aeration zone 1 is provided with aeration head 10 and air line, and wherein air line is connected with the gas blower 9 that is positioned at pond external body so that use gas blower 9 to aeration zone 1 aeration.
During work, sewage enters aeration zone 1, after Air Exposure, muddy water mixed solution enters settling region 2 by water-carrying section, water is after precipitation arranged outward, water-carrying section place and aeration zone 1 mixed solution of the mud of precipitation below enclosing 5 carries out muddy water exchange by flow turbulence effect, thereby guarantees that the sludge quantity of aeration zone is stable, and guarantees that the water sludge interface height of settling region 1 keeps stable simultaneously.This waste disposal plant is incorporated in two basic steps---aeration and precipitation---in active sludge sewage disposal in a pond body and completes simultaneously, thereby a large amount of civil engineering structures have been reduced, reduced the strength demand of most of structure, thereby structures civil engineering structure cost is significantly reduced, owing to having reduced a large amount of devices, reduced the cost of device buying and installation, and reduced working cost simultaneously, because aeration and precipitation are carried out simultaneously, therefore improved working efficiency simultaneously.
Further, the surrounding at body top, pond sets out water channel 4 or perforation rising pipe, for the water after processing being collected to then outer row.Preferably, the inner side of this outlet canal 4 adopts adjustable effluent weir.
Further, residual sludge pump 6 is set in settling region 2, for the too much mud in mud district is discharged.
Further, when needs carry out dephosphorization to sewage, the anaerobic zone (not shown) being formed by enclosing can be set in aeration zone 1, by residual sludge pump 6, in anaerobic zone, reflux part mud to carry out dephosphorization.
Further, when needs carry out denitrogenation to sewage, oxygen-starved area (not shown) and the aerobic zone (not shown) being separated into by enclosing can be set in aeration zone 1, and return sludge pump (not shown) is set in aerobic zone, carrying out denitrification reaction in the muddy water mixed solution suction oxygen-starved area after aeration, in addition, whipping appts (not shown) is set in oxygen-starved area, to the muddy water mixed solution after aeration is fully reacted.
The treatment process of utilizing above-mentioned treatment unit to process sewage mainly comprises the following steps:
(1) sewage is introduced to Ti Zhong aeration zone, pond 1, and used outside gas blower 9 to aeration zone aeration.
(2) muddy water mixed solution of aeration zone 1 flows into settling region 2 precipitations from the water-carrying section of enclosing 5 bottoms, the mud of precipitation carries out muddy water exchange by the flow turbulence effect at the water-carrying section place of enclosing 5 bottoms and the muddy water mixed solution of aeration zone 1, thereby the sludge quantity that guarantees aeration zone 1 is stable, and guarantee that the water sludge interface 3 of settling region highly keeps stable simultaneously.
(3) by the supernatant liquor of settling region 2, be that treated water is drawn.
(4) excessive mud of precipitation is discharged.
Further, the water in step (3) is outwards disposed to or is delivered to afterwards advanced treatment place by being positioned at outlet canal 4 or the collection of perforation rising pipe of body top, pond surrounding.
Further, in step (2), also comprise afterwards the step of dephosphorization being carried out in part mud suction anaerobic zone by residual sludge pump 6.
Further, in step (2), also comprise afterwards the step of denitrogenation being carried out in the muddy water mixed solution suction oxygen-starved area after aeration by being arranged on the return sludge pump (not shown) of oxygen-starved area.
The main technique method parameter of present method, as sludge loading, precipitation surface load, aeration rate, excessive mud quantity discharged etc. all can give calculative determination with reference to the method for calculation of conventional activated sludge sewage water treatment method.For municipal wastewater, single pond treatment scale is advised lower than 10000 tons/d.As process the water yield over 10000 tons/d, can adopt the mode of many sets in parallel operation.For the typical municipal wastewater of 10000 tons/d, as adopt the diameter of aeration zone, circular Chi Ti， center can adopt 36m, pond adopts 5m deeply, and pond grade of side slope adopts 45 degree.For the sanitary sewage of 100 tons/d, aeration zone, center diameter can adopt 5m, and the degree of depth is got 4m, and grade of side slope 60 degree, can meet the demands.
Above embodiment is only for the utility model is described, and is not limitation of the utility model, and the those of ordinary skill in relevant technologies field, in the situation that not departing from spirit and scope of the present utility model, can also make a variety of changes and modification.For example, the muddy water of aeration zone 1 and settling region 2 exchange degree also can regulate by changing near the mode of enclosing 5 aeration head 10 air outputs.Therefore all technical schemes that are equal to also belong to protection category of the present utility model.
Claims (9)
1. an active sludge waste disposal plant, comprise pond body, it is characterized in that, described pond body comprises and is positioned at the aeration zone that described pool center is formed by enclosing, and be positioned at settling region around, described aeration zone, between the bottom surface of the bottom of described enclosing and described pond body, be provided with for being communicated with the water-carrying section of described aeration zone and described settling region.
2. active sludge waste disposal plant according to claim 1, is characterized in that, described pond body adopts the earth structure of paripheral zone side slope, and bottom surface and the side slope of described pond body are covered by anti seepage membrane or Steel Concrete.
3. active sludge waste disposal plant according to claim 1, is characterized in that, described enclosing comprises column and is fixed on the HDPE film on described column.
4. active sludge waste disposal plant according to claim 1, is characterized in that, the height of described water-carrying section is the degree of depth of 0.1 times of described pond body.
5. active sludge waste disposal plant according to claim 1, is characterized in that, is provided with for regulating the baffle plate of the suspension type adjustment height of water-carrying section height in the bottom of described enclosing.
6. according to the active sludge waste disposal plant described in any one in claim 1-5, it is characterized in that, the surrounding at body top, described pond sets out water channel or perforation rising pipe.
7. according to the active sludge waste disposal plant described in any one in claim 1-5, it is characterized in that, in described settling region, be provided with the residual sludge pump that too much mud is discharged.
8. active sludge waste disposal plant according to claim 7, is characterized in that, in described aeration zone, is provided with anaerobic zone.
9. according to the active sludge waste disposal plant described in any one in claim 1-5, it is characterized in that, in described aeration zone, be respectively equipped with aerobic zone, oxygen-starved area, and be positioned at described aerobic zone by the return sludge pump of oxygen-starved area described in the muddy water mixed solution suction after aeration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320555022.5U CN203451279U (en) | 2013-09-06 | 2013-09-06 | Activated sludge sewage treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320555022.5U CN203451279U (en) | 2013-09-06 | 2013-09-06 | Activated sludge sewage treatment device |
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| CN203451279U true CN203451279U (en) | 2014-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320555022.5U Expired - Lifetime CN203451279U (en) | 2013-09-06 | 2013-09-06 | Activated sludge sewage treatment device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104418430A (en) * | 2013-09-06 | 2015-03-18 | 浦华环保有限公司 | Device and method for treating activated sludge wastewater |
| CN108222122A (en) * | 2018-02-06 | 2018-06-29 | 衢州市柯城区柴家柑桔专业合作社 | The rain water collecting system and water resource recycling system of a kind of greenhouse |
-
2013
- 2013-09-06 CN CN201320555022.5U patent/CN203451279U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104418430A (en) * | 2013-09-06 | 2015-03-18 | 浦华环保有限公司 | Device and method for treating activated sludge wastewater |
| CN108222122A (en) * | 2018-02-06 | 2018-06-29 | 衢州市柯城区柴家柑桔专业合作社 | The rain water collecting system and water resource recycling system of a kind of greenhouse |
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| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140226 |
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| CX01 | Expiry of patent term |