CN203079791U - Novel automatic reverse-flow type biological-process sewage treater - Google Patents
Novel automatic reverse-flow type biological-process sewage treater Download PDFInfo
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- CN203079791U CN203079791U CN201320019693.XU CN201320019693U CN203079791U CN 203079791 U CN203079791 U CN 203079791U CN 201320019693 U CN201320019693 U CN 201320019693U CN 203079791 U CN203079791 U CN 203079791U
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- 239000010865 sewage Substances 0.000 title claims abstract description 60
- 230000031018 biological processes and functions Effects 0.000 title description 6
- 238000005273 aeration Methods 0.000 claims abstract description 81
- 238000010992 reflux Methods 0.000 claims abstract description 63
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 55
- 238000006243 chemical reaction Methods 0.000 claims abstract description 53
- 239000010802 sludge Substances 0.000 claims abstract description 41
- 238000004062 sedimentation Methods 0.000 claims abstract description 20
- 238000002156 mixing Methods 0.000 claims description 21
- 238000005276 aerator Methods 0.000 claims description 9
- 238000012856 packing Methods 0.000 claims description 7
- 238000004065 wastewater treatment Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 5
- 239000000945 filler Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 29
- 238000000034 method Methods 0.000 description 21
- 230000003134 recirculating effect Effects 0.000 description 10
- 238000007599 discharging Methods 0.000 description 8
- 238000001556 precipitation Methods 0.000 description 7
- 238000012545 processing Methods 0.000 description 7
- 238000005842 biochemical reaction Methods 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 6
- 230000001376 precipitating effect Effects 0.000 description 6
- 238000005452 bending Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 230000001839 systemic circulation Effects 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 239000010815 organic waste Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000004071 biological effect Effects 0.000 description 2
- 238000010170 biological method Methods 0.000 description 2
- 230000037396 body weight Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000006396 nitration reaction Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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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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- Activated Sludge Processes (AREA)
Abstract
本实用新型公开了新型自动回流式生物法污水处理器，其上部为柱形体，下部为梯形体，主要由曝气区、左右对称设置的斜管沉淀区及自动回流区组成；曝气区池底设置旋混曝气装置，中部设置进水管；反应池两端对称设置斜管沉淀区，内部装有斜管填料，沉淀区通过溢水口与集水槽相联通；斜管沉淀区与曝气区之间设置自动回流区，回流区装有三块折板，第二折板上端留有污泥回流口，下端与池底斜面形成污泥回流缝；排泥口及污泥推流搅拌装置设置于池底两端；本实用新型结构简单，管理方便，运行稳定，耐冲击负荷能力强，处理效率高，占地面积小，广泛适用于大、中、小型污水处理工程。
The utility model discloses a novel automatic reflux biological sewage processor, the upper part of which is a columnar body, and the lower part is a trapezoidal body, which is mainly composed of an aeration area, a left and right symmetrical inclined pipe sedimentation area and an automatic reflux area; the aeration area pool The bottom is equipped with a cyclone aeration device, and the middle part is equipped with a water inlet pipe; both ends of the reaction tank are symmetrically equipped with inclined tube sedimentation areas, and the interior is equipped with inclined tube fillers. The sedimentation area is connected with the sump through the overflow port; An automatic return zone is set between them. Three folded plates are installed in the return zone. There is a sludge return port on the upper end of the second folded plate, and a sludge return joint is formed between the lower end and the inclined surface of the tank bottom. Both ends of the pool bottom; the utility model has the advantages of simple structure, convenient management, stable operation, strong impact load resistance, high treatment efficiency, small footprint, and is widely applicable to large, medium and small sewage treatment projects.
Description
Technical field
The utility model belongs to the environment protection sewage processing technology field, is specifically related to a kind of employing mud automatic backflow type aeration and sedimentation integral biological method sewage disposal device.
Background technology
At present, the development of industrial and agricultural production and the raising of people's living standard produce a large amount of productive life waste water, not only polluted our living environment, also cause simultaneously the significant wastage of resource, in decades, people have accumulated a large amount of practical experiences aspect sewage disposal, also developed some sewage water treatment methods efficiently.Activated sludge process is a kind of secondary biochemical sewage water treatment method that the present whole world is most widely used, it is widely used in municipal sewage treatment and process object is in the organic Waste Water Treatment, this method is under the condition of artificial oxygenation, sewage and multiple microbial population are carried out continuous mixed culture, form active sludge, utilize biological flocculation and precipitation, absorption and the oxygenizement of active sludge, to decompose the organic pollutant of removing in the water, make mud and water sepn then, most of mud passes back into the aeration tank again, and redundance is then discharged Sludge System.Activated sludge method processing technique commonly used at present is: sewage is earlier through grid, equalizing tank, settling pit, enter the aeration tank after the preliminary sedimentation tank pre-treatment, in the aeration tank, carry out biochemical treatment, its water outlet enters carries out mud-water separation in the second pond, supernatant water outlet after the precipitation process is discharged into receiving water body or cyclically utilizing after processing such as sterilization, this art breading is effective, stable effluent quality, degree of treatment to waste water is more flexible, can regulate as requested, and suitability is extensive, be widely used in big, in, the small-scale sewage treatment project, but its treatment facility floor space is big, capital construction and operational and administrative expenses height, complicated operation, simultaneously, because its activity sludge reflux need be finished by reflux pump, has destroyed the cotton-shaped activity of mud, has reduced processing efficiency, prolong the sewage disposal cycle, increased facility investment.
Chinese patent (ZL98121863.6) has proposed double baffle type biological method apparatus for treating sewage, this processor adopting deflector structure has been realized the automatic backflow of active sludge, save the mud refluxing unit, improved sewage treating efficiency, reduced the investment of floor space and building equipment.But this method structure is comparatively simple, through after the actual motion, finds to exist certain deficiency: the one, and settling region mud is by the sedimentation effect instability of natural subsidence, and water outlet SS fluctuation is bigger; The 2nd, the precipitation process of settling region is subjected to aeration zone current disturbing influence bigger, and it is serious to turn over phenomenon on the mud; The 3rd, since aeration zone aeration situation instability, the negative pressure deficiency that the current natural circulation forms, and mud refluxes short flow phenomenon takes place often; The 4th, the reaction tank impact resistance is not strong, and sewage and returned sluge are difficult to thorough mixing at short notice, when the fluctuation of the influent quality water yield is big, and the effluent quality instability.
Be directed to the deficiency of above sewage water treatment method, through long-time research and improvement, the inventor has proposed a kind of new type auto return-flow type biological process apparatus for treating sewage, this technology is combined to aeration tank in the traditional activated sludge process and second pond in the reaction tank by certain mode, and by adopting automatic technique of backflow to realize that mud refluxes automatically, reduce mud backflow facility, strengthened biological selectivity, improved sewage treating efficiency.Simultaneously by water inlet in the middle of being provided with, the sewage disposal mode of both sides water outlet, add mud plug-flow whipping appts, improvement deflector structure and aeration form and increase the efficient deposition facility of inclined tube, improved the ability and the operation stability of reaction tank anti impulsion load, made effluent quality better.Prove that after deliberation this equipment is succinctly reasonable, less investment, floor space is little, and operational management is convenient, and the anti impulsion load ability is strong, and effluent quality is good, can be widely used in large, medium and small type sewage treatment project.
Summary of the invention
It is a kind of simple in structure that the purpose of this utility model is to provide, and convenient management is stable, and the anti impulsion load ability is strong, the processing efficiency height, and effluent quality is good, and surplus sludge volume is few, and floor space is little, and suitability is the sewage disposal specific equipment widely.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of new type auto return-flow type biological process apparatus for treating sewage comprises reaction tank, it is characterized in that:
Described reaction tank top is cylindrical body, and the bottom is a prismatoid, is made up of aeration zone, the tube settling district that is symmetrical set and automatic recirculating zone;
The aeration zone is provided with aerating apparatus at the bottom of the pond, and the middle part is provided with water inlet pipe;
The reaction tank two ends are symmetrical arranged two tube settling districts, and the tube settling district is by spillway and water leg UNICOM, and water leg is provided with rising pipe, and the water side of spillway is provided with overflow weir;
Between each tube settling district and the aeration zone automatic recirculating zone is set, automatically the recirculating zone is equipped with first flap, second flap and the 3rd flap, second flap is arranged between first flap and the 3rd flap, its upper end is provided with the mud refluxing opening, bending-like is adopted in the bottom, be provided with extension board, the inclined-plane of extension board and prismatoid constitutes mud backflow seam, mud refluxes to stitch and is communicated with the tube settling district, and second flap constitutes two cracks that are communicated with tube settling district and aeration zone respectively with between first flap and the 3rd flap;
The prismatoid two bottom sides is provided with mud discharging mouth, and the prismatoid bottom also is provided with aerator.
Aeration zone and tube settling district are arranged in the reaction tank, and are linked by the mud backflow seam of both sides, lower end and the mud refluxing opening of second flap upper end.
The inclined tube packing layer with height is equipped with at the middle part of settling region, and inclined tube packing layer bottom is higher than the lower edge of the 3rd flap.
Aerating apparatus adopts the rotary mixing type aerating apparatus.
First flap and the 3rd flap are positioned at the second flap both sides, and first flap is near aeration zone one side, and its upper end is concordant with the upper edge of reaction tank, and the lower end is positioned at the second flap top; The 3rd flap is near tube settling district one side, and its upper end is concordant with the upper edge of reaction tank, and the lower end is positioned at the second flap bottom, and is lower than first flap.
The upper edge of second flap is provided with the mud refluxing opening, and the lower edge of mud refluxing opening is positioned on the first flap lower edge, and the height of mud refluxing opening is 10-500mm.
Extension board is a bending-like, and the front end of extension board is parallel with the inclined-plane of prismatoid, and forms mud backflow seam, the width of mud backflow seam is 20-400mm, the terminal lower edge plate of extension board is parallel with the bottom surface of reaction tank, and spacing between the two is generally 35-500mm greater than the width that mud refluxes and stitches.
Distance between two second flaps is greater than the length 10%-30% of reaction tank bottom surface.
The angle of inclination, inclined-plane of reaction tank lower end prismatoid is 45 °-60 °.
Mud discharging mouth is arranged at the corner between the inclined-plane of reaction tank bottom surface and prismatoid.
The reaction tank two bottom sides is respectively arranged with two and is the mud plug-flow whipping appts that 45 ° of directions are installed.
Sewage enters the aeration zone by middle water inlet pipe, under the effect of rotary mixing type aerating apparatus and mud plug-flow whipping appts with active sludge thorough mixing at short notice, carry out biochemical reaction, the mud of reacted muddy water through the lower end refluxes and stitches the tube settling district that flows into two ends automatically, carry out mud-water separation by gravitational settling and inclined tube shallow layer precipitating, the upper strata clear water is through spillway, enter in the water leg by overflow weir, the effect of overflow weir is to allow water outlet evenly overflow, discharge by the rising pipe in the groove, the active higher mud in settling region under the effect of negative pressure that the aeration zone current form and self gravitation by the crack between the flap, the mud refluxing opening of second flap upper end and the mud of lower end reflux to stitch and pass back in the aeration zone automatically, again participate in the circulating treatment procedure of sewage, excess sludge is then discharged by the mud discharging mouth at reaction tank two ends.
The utility model is integrated aeration and sedimentation and automatic backflow of mud, is arranged in the one reaction pool, has significantly reduced floor space, has simplified sewage disposal device, has improved sewage treating efficiency and effluent quality.By the polylith flap reaction tank is divided into aerobic, two zones of anoxic simultaneously, sewage is alternate run under aerobic, anaerobic environment, and microorganism has carried out the nitration denitrification reaction, has realized the denitrogenation dephosphorizing of sewage.
The utility model is provided with the inclined tube filler of certain altitude in the settling region, utilize inclined tube shallow layer precipitating principle that processed sewage is moved between inclined tube in the mode of incorgruous stream mutually with suspended particle and separate, by the synergy of gravitational settling and inclined tube shallow layer precipitating, the sedimentation effect of settling region and effluent quality have obtained to improve significantly like this.
The utility model is being provided with first flap in the recirculating zone automatically, second flap, the 3rd flap, leave the crack of certain width between the flap, and the second flap upper edge is lower than the water surface, and leave the mud refluxing opening of certain altitude, the bending form is adopted in the lower end, extension board is set, extension board is a bending-like, its front end is parallel with the inclined-plane of reaction tank prismatoid, between leave the wide mud of the 20-400mm seam that refluxes, its terminal lower edge plate is parallel with the reaction tank bottom surface, between the spacing width that refluxes and stitch greater than mud, be generally 35-500mm, distance between second flap of both sides is provided with so on the one hand and can the backflow of the mud with greater activity is finished automatically by mud refluxing opening and mud backflow seam by adopting folded than the big 10%-30% of reaction tank bottom surface length, save the mud refluxing unit, reduced facility investment.Help on the one hand settling region mud and utilize self gravitation to pass back in the aeration zone by the mud seam that refluxes swimmingly, avoid the pond at the bottom of two ends the sludge blockage phenomenon takes place; Can prevent that on the other hand the precipitation process of settling region is subjected to the disturbing influence of aeration zone aeration current, when the aeration current downward ballistic the time along first flap, be subjected to stopping of extension board and lower edge plate thereof, current moment bending is to the middle part, aeration zone, after the effect that is subjected to aerating apparatus, upper punch forms the current systemic circulation again, so just can avoid in the ballistic process reaction tank bottom water flow being caused violent disturbance under the current direction, and then cause settling region mud to stir, influence sedimentation effect.
The utility model leans on the effect of the negative pressure of aeration zone current formation to pass back in the aeration zone by crack between the flap and mud refluxing opening in the mud that major part has greater activity, participates in the biochemical reaction again.Active higher mud body weight is lighter, the easier effect that is subjected to the negative pressure of aeration current formation, automatically reflux by flap, and active low mud is deposited on settling region bottom by self gravitation because its gravity is bigger in the precipitation process, and refluxing to stitch by mud passes back into the bottom, aeration zone, finally can regularly discharge by shore pipe, this makes whole mud recirculating zone have the biological effect of selecting concurrently, sustainable active higher mud and sewage thorough mixing, the raising biochemical treatment efficient of making.
The utility model aerating apparatus adopts the aeration form of mixing of revolving, revolve the form of mixing the cutting of aeration employing multi-layer helical and carry out oxygenic aeration, when air-flow enters mixed flow type aerator, air-flow is at first by two road helical cut systems, enter the multilayer prionodont air distribution head of lower floor after the cutting, carry out the multilayer cutting, make bubble cut into microbubble, form bigger upflow velocity, aerator water is on every side flowed to the aerator ingress, ascending current arrive the back, surface to around diffusion, and flow downward along pool wall and to form the current systemic circulation; And then before, during and after form stable high negative pressure between flap naturally, continual and steady high negative pressure can promote mud to reflux, and avoids occurring the mud short flow phenomenon that refluxes.
The utility model is provided with mud plug-flow whipping appts respectively at two ends, reaction tank bottom, to reflux by mud refluxing opening and mud and stitch the active higher mud that passes back into automatically in the aeration zone, the middle part of plug-flow to the aeration zone forced on intermittent type ground, under the effect of aeration with the sewage thorough mixing.The thorough mixing that can promote muddy water on the one hand by the effect of stirring is set like this; Can make more returned sluge and sewage thorough mixing by forcing plug-flow on the one hand, improve effective sludge concentration of aeration zone; Can avoid the aeration zone to produce the mud dead angle on the other hand, the two ends deposition causes sludge blockage at the bottom of the pond, influences the mud deadweight and refluxes.
Mud discharging mouth of the present utility model is arranged on the corner at two ends at the bottom of the pond, helps excess sludge and in time discharges biochemical system.
The utility model can be according to the influent quality water yield, the flexible sludge concentration, the SV may command has strengthened the ability of system's anti impulsion load up to 90%, water inlet in the middle of adopting simultaneously, the mode of both sides water outlet, make sewage in a single day enter the aeration zone, just can be under the effect of aeration and the quick thorough mixing of mud, reduced the biochemical reaction time, improve sewage treating efficiency and capacity of resisting impact load, be widely used in the processing of the organic waste water of the different quality water yield.In addition, the mud quantity of reflux also can be by the aeration rate and first flap the adjusting of position controlled flexibly, even can reach mud 100% backflow, and need like this will reduce significantly from the surplus sludge volume that system discharges, saved the required expense of sludge disposal.
The beneficial effects of the utility model are: a kind of new type auto return-flow type biological process apparatus for treating sewage of the present utility model, sewage treating efficiency and decontamination effect improving have been improved greatly, strengthened the stability of ballistic ability of the anti-organic loading of system and operation, compact structure design has simultaneously reduced floor space, reduce investment, for biological sewage treatment provides guarantee on technology and the equipment, this equipment can be widely used in greatly, in, the small-scale sewage treatment project, especially the treatment of Organic Wastewater engineering of the different quality water yield is to realize the environmental requirement of sewage qualified discharge or recycle.
Description of drawings
Fig. 1 is the utility model apparatus for treating sewage orthographic plan.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As shown in Figure 1, a kind of new type auto return-flow type biological process apparatus for treating sewage comprises reaction tank 17, it is characterized in that:
Described reaction tank 17 tops are cylindrical body 101, and the bottom is a prismatoid 102, are made up of aeration zone 1, the tube settling district 2 that is symmetrical set and automatic recirculating zone 3;
The aeration zone is provided with aerating apparatus 15 at the bottom of 1 pond, and the middle part is provided with water inlet pipe 12;
Reaction tank 17 two ends are symmetrical arranged two tube settling districts 2, and tube settling district 2 is by spillway 4 and water leg 5 UNICOMs, and water leg 5 is provided with rising pipe 13, and the water side of spillway 4 is provided with overflow weir 16;
Automatic recirculating zone 3 is set between each tube settling district 2 and the aeration zone 1, automatically recirculating zone 3 is equipped with first flap 7, second flap 9 and the 3rd flap 8, second flap 9 is arranged between first flap 7 and the 3rd flap 8, its upper end is provided with mud refluxing opening 6, bending-like is adopted in the bottom, be provided with extension board 901, extension board 901 constitutes mud backflow seam 10 with the inclined-plane 102-1 of prismatoid 102, mud backflow seam 10 is communicated with tube settling districts 2, the second flaps 9 and constitutes two cracks 301 that are communicated with tube settling district 2 and aeration zone 1 respectively with between first flap 7 and the 3rd flap 8;
Prismatoid 102 two bottom sides are provided with mud discharging mouth 11, and prismatoid 102 bottoms also are provided with aerator 15.
The inclined tube packing layer 14 with height is equipped with at the middle part of settling region 2, and inclined tube packing layer 14 bottoms are higher than the lower edge of the 3rd flap 8.
Aerating apparatus 15 adopts the rotary mixing type aerating apparatus.
First flap 7 and the 3rd flap 8 are positioned at second flap, 9 both sides, and first flap 7 is near aeration zone 1 one sides, and its upper end is concordant with the upper edge of reaction tank 17, and the lower end is positioned at second flap, 9 tops; The 3rd flap 8 is near tube settling district 2 one sides, and its upper end is concordant with the upper edge of reaction tank 17, and the lower end is positioned at second flap, 9 bottoms, and is lower than first flap 7.
The upper edge of second flap 9 is provided with mud refluxing opening 6, and the lower edge of mud refluxing opening 6 is positioned on first flap, 7 lower edges, and the height of mud refluxing opening 6 is 10-500mm.
Distance between two second flaps 9 is greater than the length 10%-30% of reaction tank 17 bottom surfaces 18.
The 102-1 angle of inclination, inclined-plane of reaction tank lower end prismatoid 102 is 45 °-60 °.
Mud discharging mouth 11 is arranged at the corner between the inclined-plane 102-1 of reaction tank 17 bottom surfaces 18 and prismatoid 102.
The reaction tank two bottom sides is respectively arranged with two and is the mud plug-flow whipping appts 19 that 45 ° of directions are installed.
Sewage enters aeration zone 1 by middle water inlet pipe 12, revolving under the effect that mixes aerating apparatus and mud plug-flow whipping appts and the quick thorough mixing of active sludge, carry out biochemical reaction, the mud of reacted muddy water through reaction tank 17 lower ends refluxes and stitches the 10 automatic tube settling districts 2 that flow into two ends, carry out mud-water separation by gravitational settling and inclined tube shallow layer precipitating, the upper strata clear water is through spillway 4, enter in the water leg 5 along overflow weir 16, discharge by the rising pipe in the groove 13, the active higher mud in settling region under the effect of negative pressure that aeration zone 1 current form and self gravitation by the crack between the flap 301, the mud refluxing opening 6 of second flap, 9 upper ends and the mud of lower end backflow seam 10 pass back in the aeration zone 1 automatically, again participate in the circulating treatment procedure of sewage, excess sludge is then discharged by the mud discharging mouth 11 at reaction tank two ends.
The utility model is integrated aeration and sedimentation and automatic backflow of mud, is arranged in the one reaction pool, has significantly reduced floor space, has simplified sewage disposal device, has improved sewage treating efficiency and effluent quality.By the polylith flap reaction tank is divided into aerobic, two zones of anoxic simultaneously, sewage is alternate run under aerobic, anaerobic environment, and microorganism has carried out the nitration denitrification reaction, has realized the denitrogenation dephosphorizing of sewage.
The utility model is provided with inclined tube packing layer 14 in settling region 2, utilize inclined tube shallow layer precipitating principle that processed sewage is moved between inclined tube 1401 in the mode of incorgruous stream mutually with suspended particle and separate, by the synergy of gravitational settling and inclined tube shallow layer precipitating, the sedimentation effect of settling region and effluent quality have obtained to improve significantly like this.
The utility model is being provided with first flap 7 in the recirculating zone 3 automatically, second flap 9, the 3rd flap 8, leave the crack 301 of certain width between the flap, and second flap, 9 upper edges are lower than the water surface, and leave the mud refluxing opening 6 of certain altitude, the bending form is adopted in the lower end, extension board 901 is set, extension board 901 is a bending-like, its front end is parallel with the inclined-plane 102-1 of reactor 17 prismatoids 102, between leave the wide mud of the 20-400mm seam 10 that refluxes, its terminal lower edge plate 901-1 is parallel with reaction tank 17 bottom surfaces 18, between spacing greater than the reflux width of seam of mud, be generally 35-500mm, distance between second flap of both sides is provided with so on the one hand and can the backflow of the mud with greater activity is finished automatically by mud refluxing opening and mud backflow seam by adopting folded than the big 10%-30% of reaction tank bottom surface length, save the mud refluxing unit, reduced facility investment.Help on the one hand settling region 2 mud and utilize self gravitation to pass back in the aeration zone 1 by the mud seam 10 that refluxes swimmingly, avoid the pond at the bottom of two ends the sludge blockage phenomenon takes place; Can prevent that on the other hand the precipitation process of settling region is subjected to the disturbing influence of aeration zone aeration current, when the aeration current downward ballistic the time along first flap 7, be subjected to stopping of extension board 901 and lower edge plate 901-1 thereof, current moment bending is to the middle part, aeration zone, after being subjected to the aeration effect, upper punch forms the current systemic circulation again, so just can avoid in the ballistic process reactor bottom current being caused violent disturbance under the current direction, and then cause settling region mud to stir, influence sedimentation effect.
Pass back in the aeration zone by crack between the flap 301 and mud refluxing opening 6 under the effect of the negative pressure that the mud that the utility model has a greater activity with major part forms by the aeration zone current, participate in the biochemical reaction again.Active higher mud body weight is lighter, the easier effect that is subjected to the negative pressure of aeration current formation, automatically reflux by flap, and active low mud is deposited on settling region bottom by self gravitation because its gravity is bigger in the precipitation process, passes back into the bottom, aeration zone by mud backflow seam 10, can regularly discharge by shore pipe 11, this makes whole mud recirculating zone have the biological effect of selecting concurrently, sustainable active higher mud and sewage thorough mixing, the raising biochemical treatment efficient of making.
The utility model aerating apparatus 15 adopts the aeration form of mixing of revolving, revolve the form of mixing the cutting of aeration employing multi-layer helical and carry out oxygenic aeration, when air-flow enters mixed flow type aerator, air-flow is at first by two road helical cut systems, enter the multilayer prionodont air distribution head of lower floor after the cutting, carry out the multilayer cutting, make bubble cut into microbubble, form bigger upflow velocity, aerator water is on every side flowed to the aerator ingress, ascending current arrive the back, surface to around diffusion, and flow downward along pool wall and to form the current systemic circulation; And then before, during and after form stable high negative pressure between flap naturally, continual and steady high negative pressure can promote mud to reflux, and avoids occurring the mud short flow phenomenon that refluxes.
The utility model adds mud plug-flow whipping appts 19 respectively at the reactor bottom two ends, this device will reflux by mud refluxing opening 6 and mud and stitch the 10 active higher mud that pass back into automatically in the aeration zone, force the middle part of plug-flow off and on to the aeration zone, under the effect of aeration with the sewage thorough mixing.The thorough mixing that can promote muddy water on the one hand by the effect of stirring is set like this.Can make more returned sluge and sewage thorough mixing by forcing plug-flow on the one hand, improve effective sludge concentration of aeration zone.Can avoid the aeration zone to produce the mud dead angle on the other hand, the two ends deposition causes sludge blockage at the bottom of the pond, influences the mud deadweight and refluxes.
Mud discharging mouth 11 of the present utility model is arranged on the corner at two ends at the bottom of the pond, helps excess sludge and in time discharges biochemical system.
The utility model can be according to the influent quality water yield, the flexible sludge concentration, the SV may command has strengthened the ability of system's anti impulsion load up to 90%, water inlet in the middle of adopting simultaneously, the mode of both sides water outlet, make sewage in a single day enter the aeration zone, just can be under the effect of aerating apparatus and the quick thorough mixing of mud, reduced the biochemical reaction time, improve sewage treating efficiency and impact resistance, be widely used in the processing of the organic waste water of the different quality water yield.In addition, the mud quantity of reflux also can be controlled flexibly by the adjusting of the aeration rate and the first flap position, even can reach mud 100% backflow, and need like this will reduce significantly from the surplus sludge volume that system discharges, saved the required expense of sludge disposal.
The above only is a preferred implementation of the present utility model, should be understood that, for those skilled in the art, under the prerequisite that does not break away from the utility model principle, can do the improvement of some suitable practical situation to the technical scheme of utility model.Therefore, protection domain of the present utility model is not limited thereto, and those of skill in the art are any to be included within the utility model protection domain based on non-material change on the technical solutions of the utility model.
Claims (11)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320019693.XU CN203079791U (en) | 2013-01-15 | 2013-01-15 | Novel automatic reverse-flow type biological-process sewage treater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201320019693.XU CN203079791U (en) | 2013-01-15 | 2013-01-15 | Novel automatic reverse-flow type biological-process sewage treater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103043870A (en) * | 2013-01-15 | 2013-04-17 | 广东顺德弘顺达环保产业技术投资有限公司 | Novel automatic-reflux biological sewage processor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103043870A (en) * | 2013-01-15 | 2013-04-17 | 广东顺德弘顺达环保产业技术投资有限公司 | Novel automatic-reflux biological sewage processor |
| CN103043870B (en) * | 2013-01-15 | 2014-04-23 | 广东顺德弘顺达环保产业技术投资有限公司 | Novel automatic-reflux biological sewage processor |
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