CN204918319U - Biological sewage treatment system - Google Patents
Biological sewage treatment system Download PDFInfo
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- CN204918319U CN204918319U CN201520656536.9U CN201520656536U CN204918319U CN 204918319 U CN204918319 U CN 204918319U CN 201520656536 U CN201520656536 U CN 201520656536U CN 204918319 U CN204918319 U CN 204918319U
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- aeration
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- demoulding
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Abstract
The utility model discloses a biological sewage treatment system, including the equalizing basin, just heavy pond, hydrolysis -acidification pool, contact oxidation tank and two heavy ponds, the equalizing basin, just heavy pond, the two row's mud mouths and sludge tihckener intercommunication that sink the pond, hydrolysis -acidification pool sets up aeration systems, its aeration main pipe includes that aeration longitudinal tubule (L tubule) and aeration violently manage, the aeration is violently managed and is provided with a plurality of and divides the interface, every divides interface demountable installation to have the aeration standpipe, the bottom of this aeration standpipe is connected with two aerations and is in charge of, equal parallel arrangement is in charge of to each aeration, the below that sets up in biochemistry packs is in charge of to every aeration, every aeration is in charge of and is provided with a plurality of aeration main aperture, the aeration is in charge of the suit and is fixed with the gum cover, this gum cover is provided with a plurality of aeration micropore, biochemical bottom of packing is provided with deciduate flush pipe way. This sewage treatment system can effectually dispose of sewage, need not empty hydrolysis -acidification pool and can maintain or maintain aeration systems, satisfies simultaneously and clears away ageing biomembrane under the condition of aeration rate fast.
Description
Technical field
The utility model relates to a kind of biological wastewater treatment systems.
Background technology
The aerating system of current biomembrance process water treatment generally all adopts bottom to install the method for film aeration plate, such mounting means makes extremely to bother when needs overhaul, need whole biochemistry pool to empty, cause system to run, the cost simultaneously overhauled also obviously increases.And simultaneously, the aging microbial film be attached on bio-carrier can only be washed away by the aeration rate strengthening aeration plate, and the aeration rate that the back segment of biochemical sewage treating pond needs is not high, therefore, cannot use and just increase aeration rate to wash away aging microbial film, cause wastewater treatment efficiency to reduce like this.
In addition, mud residual after sewage disposal needs to carry out concentration, and the condensing mode of current mud is fairly simple, and when the mud after concentrated is sent to plate type pressure filter press filtration, the cycle of press filtration is long, and efficiency of press filtering is low, and the water content of mud cake is high.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of biological wastewater treatment systems, this Sewage treatment systems not only can effectively be disposed of sewage, and can safeguard without the need to emptying hydrolysis acidification pool or keep in repair aerating system, remove aging microbial film fast when can meet aeration rate simultaneously, accelerate new biomembranous growth, improve wastewater treatment efficiency.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of biological wastewater treatment systems, comprise equalizing tank, preliminary sedimentation tank, hydrolysis acidification pool, contact-oxidation pool and second pond, described equalizing tank, preliminary sedimentation tank, hydrolysis acidification pool, contact-oxidation pool is communicated with by a set of sewage transport pipeline with second pond, equalizing tank, preliminary sedimentation tank, the bottom of second pond is provided with mud discharging mouth, this mud discharging mouth is communicated with sludge thickener by spoil disposal pipeline, the described hydrolysis acidification pool of institute is identical with catalytic oxidation pool structure, described hydrolysis acidification pool and contact-oxidation pool include the pond body having and hold sewage, this Chi Tishang is provided with some to upper fixed tube and lower fixed tube, between upper fixed tube and lower fixed tube, some string bio-carriers are installed, described hydrolysis acidification pool is also provided with aerating system, this aerating system comprises the aeration supervisor of being fixed on hydrolysis acidification pool, described aeration supervisor comprises the aeration longitudinal tubule (L tubule) of the wherein side being arranged at hydrolysis acidification pool, with the aeration transverse tube across hydrolysis acidification pool of aeration limit pipe vertical connection, described aeration transverse tube is evenly provided with several point of interface, each point of interface is detachably provided with the aeration vertical tube vertically arranged, the bottom of this aeration vertical tube is connected with two aerations by threeway and is in charge of, the free end shutoff that aeration is in charge of, each aeration is in charge of and is all be arranged in parallel and aeration is in charge of vertical with aeration transverse tube, each aeration is in charge of the bottom that is arranged at biochemical sewage pond and is positioned at the below of biochemical carrier, each aeration is in charge of and is provided with several aeration main apertures, aeration is in charge of suit and is fixed with gum cover, aeration main aperture wraps up and gum cover is provided with several aerating pores by this gum cover, the bottom of described biochemical carrier is provided with demoulding and washes away pipeline.
As the preferred scheme of one, described aeration vertical tube comprises interconnective epimere pipe and hypomere pipe, described hypomere pipe is in below the sewage level of biochemical sewage treating pond, described epimere pipe is upwards extended by the below of sewage level and removably connects with a point interface for aeration transverse tube, lower end 25-35cm place under sewage level of described epimere pipe, this epimere pipe is stainless steel tube.
As the preferred scheme of one, described gum cover and aeration be in charge of between fixed form be: described gum cover is sleeved on aeration and is in charge of, sealing is sewed up in one end of gum cover, and the other end of gum cover is fixed by stainless steel pipe collar, and gum cover and aeration are provided with spatial cache between being in charge of.
As the preferred scheme of one, described demoulding washes away pipeline and comprises the demoulding transverse tube be communicated with aeration longitudinal tubule (L tubule), demoulding transverse tube is provided with stopping valve, this demoulding transverse tube is communicated with demoulding vertical tube, this demoulding vertical tube extends at the bottom of the pond of biochemical sewage treating pond always, be provided with demoulding bottom tube at the bottom of this pond, demoulding bottom tube is between adjacent aeration is in charge of, and demoulding bottom tube is provided with several scour holes.
As the preferred scheme of one, described scour hole comprises the left scour hole on left side and the right side being in demoulding bottom tube respectively and right scour hole, left scour hole is tiltedly also arranged upward towards left avertence, right scour hole is tiltedly also arranged upward towards right avertence, left scour hole and right scour hole mutually stagger interval arrange, the axis of left scour hole and the angle of vertical direction line are 45 °, and the axis of right scour hole and the angle of vertical direction line are 45 °.
As the preferred scheme of one, described sludge thickener comprises concentration basin body, this concentration basin body is provided with mud and enters pipeline and mud sends pipeline, mud is sent on pipeline and is provided with sludge pump, concentration basin body is also provided with liming adding tube and coagulating agent adding tube, be provided with aeration agitation pipe in concentration basin body, this aeration agitation pipe is responsible for aeration and is communicated with.
As the preferred scheme of one, described hydrolysis acidification pool adjacent with the pool wall of contact-oxidation pool and become nine grids distribution, nine ponds comprise a hydrolysis acidification pool and two contact-oxidation pools of three contact-oxidation pools of left column, three hydrolysis acidification pools of right column and middle column, hydrolysis acidification pool is positioned at front side, and the water-in of contact-oxidation pool all becomes butted line to distribute with the water-in of water outlet, hydrolysis acidification pool and water outlet.
After have employed technique scheme, effect of the present utility model is: because each point of interface is detachably provided with the aeration vertical tube vertically arranged, the bottom of this aeration vertical tube is connected with two aerations by threeway and is in charge of, the free end shutoff that aeration is in charge of, each aeration is in charge of and is all be arranged in parallel and aeration is in charge of vertical with aeration transverse tube, each aeration is in charge of the bottom that is arranged at biochemical sewage pond and is positioned at the below of biochemical carrier, each aeration is in charge of and is provided with several aeration main apertures, aeration is in charge of suit and is fixed with gum cover, aeration main aperture wraps up and gum cover is provided with several aerating pores by this gum cover, the bottom of described biochemical carrier is provided with demoulding and washes away pipeline.Therefore, this biochemical sewage treating pond adopts dismountable aeration to be in charge of, for convenience detach, without the need to emptying the sewage in pond, carry out examine and replace aeration and be in charge of when ensureing normal processing, and aeration is in charge of and is provided with gum cover, utilizes aerating pore can produce a large amount of micro-bubbles, meet enough aeration rates, meet the demand of aerobic bacteria.This Sewage treatment systems aeration is separated with washing away, can better demoulding, thus accelerates new biomembranous generation, improves the sewage treatment capacity of Sewage treatment systems.
Again because described aeration vertical tube comprises interconnective epimere pipe and hypomere pipe, described hypomere pipe is in below the sewage level of biochemical sewage treating pond, described epimere pipe is upwards extended by the below of sewage level and removably connects with a point interface for aeration transverse tube, lower end 25-35cm place under sewage level of described epimere pipe, this epimere pipe is stainless steel tube.The epimere pipe utilizing stainless steel to make can improve erosion resistance.
The demoulding transverse tube be communicated with aeration longitudinal tubule (L tubule) is comprised again because described demoulding washes away pipeline, demoulding transverse tube is provided with stopping valve, this demoulding transverse tube is communicated with demoulding vertical tube, this demoulding vertical tube extends at the bottom of the pond of biochemical sewage treating pond always, demoulding bottom tube is provided with at the bottom of this pond, demoulding bottom tube is between adjacent aeration is in charge of, and demoulding bottom tube is provided with several scour holes.Described scour hole comprises the left scour hole on left side and the right side being in demoulding bottom tube respectively and right scour hole, left scour hole is tiltedly also arranged upward towards left avertence, right scour hole is tiltedly also arranged upward towards right avertence, left scour hole and right scour hole mutually stagger interval arrange, the axis of left scour hole and the angle of vertical direction line are 45 °, and the axis of right scour hole and the angle of vertical direction line are 45 °.Utilize demoulding bottom tube and aeration to be in charge of interval to arrange, aeration is in charge of can meet aeration demand, and when needing to carry out demoulding to biochemical carrier, open demoulding bottom tube, high pressure gas are gone out from scour hole and are washed away biochemical carrier, aging mycoderm and biochemical carrier are departed from, and this demoulding mode pressure is large, and demoulding is effective.
In addition, the invention also discloses a kind of sewage water treatment method of biological wastewater treatment systems, comprise the following steps
A, the waste water that multiple pollutant discharging unit collects is sent to homogeneous water quality in equalizing tank;
B, utilize water pump by equalizing tank being sent in preliminary sedimentation tank of continuing of the sewage of homogeneous carry out just heavy, the flooding velocity of settling tank is 100-250t/h, first in preliminary sedimentation tank, add the ferrous sulfate solvent that concentration is 25-30%, ferrous sulfate solvent and the wastewater volume in preliminary sedimentation tank are than being 2.2-2.7 ‰, and then the white lime water of 4-7% is added to preliminary sedimentation tank, white lime water and the wastewater volume in preliminary sedimentation tank are than being 12-14 ‰, waste water precipitin reaction time 3-7h in preliminary sedimentation tank;
C, utilize water pump to be continued to be sent in hydrolysis acidification pool by the supernatant liquor in preliminary sedimentation tank, the water flow of preliminary sedimentation tank is 100-250t/h, utilizes sludge pump to send in sludge thickener by the mud of precipitation at the bottom of the pond of preliminary sedimentation tank;
D, sewage carry out biomembrance process and deeply dispose of sewage in hydrolysis acidification pool, and the bio-carrier spacing in hydrolysis acidification pool is 12-14cm, and utilize aerating system from aeration below carrier, and the air water volume ratio of aeration is 5-10; After the microbial film that bio-carrier adheres to is aging, utilize flushing system to wash away aging microbial film, force demoulding;
E, waste water after hydrolysis acidification pool process flow into deeply process further in contact-oxidation pool, and the bio-carrier spacing of contact-oxidation pool is 14-16cm, and utilizes dismountable aeration to be in charge of lasting aeration, and the air water volume ratio of aeration is 18-22; The quantity of contact-oxidation pool is 4 or 5, the quantity of hydrolysis acidification pool is 5 or 4 and becomes with contact-oxidation pool nine grids to arrange, the water flow inside route of contact-oxidation pool and hydrolysis acidification pool is diagonal lines flowing, after the microbial film that the bio-carrier in contact-oxidation pool adheres to is aging, utilize demoulding to wash away pipeline to wash away aging microbial film, force demoulding;
F, waste water after contact-oxidation pool process are sent in second pond according to the transfer rate that flow is 100-250t/h, a part of return of waste water is in hydrolysis acidification pool simultaneously, 0.5-1.5%PAC solution is added in second pond, the volume ratio of the wastewater flow rate of PAC solution and second pond is 6-9 ‰, adds the PAM solution of 0.5-1.2 ‰ in second pond; The volume ratio of the wastewater flow rate of PAM solution and second pond is 6-9 ‰, precipitin reaction time 6-14h;
The supernatant liquor discharge of G, second pond, and the mud of second pond is sent in sludge thickener;
Through plate type pressure filter compacting mud cake after the mud of H, second pond and the mud of preliminary sedimentation tank enter and concentrate in sludge thickener.
Preferably, in described sludge thickener, the concentration method of mud is: the mud in sludge thickener is modulated into the wet mud that water ratio is 95%, according to 1.3-4Kg/m
3ratio add unslaked lime, aeration agitation reaction, after 30-60 minute, then adds 3.3-13.3L/m
3ratio add concentration be 1 ‰ the PAM aqueous solution aeration agitation reaction 10-15 minute.
Preferably, the aeration of contact-oxidation pool is in charge of the demoulding washing away pipeline with demoulding and is in charge of spaced and parallel spaced set, and the angle of what demoulding was in charge of wash away air flow line and perpendicular is 45 °.
After have employed technique scheme, effect of the present utility model is: this sewage water treatment method utilizes ferrous sulfate and white lime water to carry out complex reaction, produce flocculate precipitate, originally some impurity in preliminary sedimentation tank are sunk with flocculate precipitate one, and enter into hydrolysis acidification pool, utilize the microorganism of oxygen of holding concurrently to process and change the non-solubility organism in original waste water into dissolved organic matter, improve the biodegradability of waste water, be beneficial to follow-up aerobic treatment, and in contact-oxidation pool, do further biochemical oxidation, make organic substance decomposing, and dismountable aeration is in charge of and is provided aeration, demoulding washes away pipeline only for demoulding, demoulding effect can be improved like this, also convenient cleaning.
Again because the concentration method of mud in described sludge thickener is: the mud in sludge thickener is modulated into the wet mud that water ratio is 95%, according to 1.3-4Kg/m
3ratio add unslaked lime, aeration agitation reaction, after 30-60 minute, then adds 3.3-13.3L/m
3ratio add the PAM aqueous solution aeration agitation reaction 10-15 minute that concentration is 1 ‰, the high wet mud of water content, after the method modulation, can shorten the time of filter pressing of plate type pressure filter greatly, reduce the water content of mud cake.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the hydrolysis acidification pool of the utility model embodiment and the layout drawing of contact-oxidation pool;
Fig. 2 is the partial schematic diagram of hydrolysis acidification pool;
Fig. 3 is that aeration is in charge of the layout drawing with demoulding bottom tube;
Fig. 4 is that aeration is in charge of the stereographic map arranged with the local of demoulding bottom tube;
Fig. 5 is the schematic diagram that aeration is in charge of;
Fig. 6 is the fixed structure chart of upper fixed tube;
Fig. 7 is the right view of Fig. 6;
Fig. 8 is the system diagram of the entirety of the utility model embodiment;
In accompanying drawing: 1. hydrolysis acidification pool; 2. contact-oxidation pool; 3. water-in; 4. water outlet; 5. descend fixed tube; 6. go up fixed tube; 7. nylon rope; 8. bio-carrier; 9. aeration longitudinal tubule (L tubule); 10. aeration transverse tube; 11. demoulding transverse tubes; 12. demoulding bottom tubes; 13. aerations are in charge of; 14. aeration vertical tubes; 141. epimere pipes; 142. hypomere pipes; 143. swivel nut; 15. demoulding vertical tubes; 16. stopping valve; 17. gum covers; 18. stainless steel pipe collars; 19. threeways; 20. web plates; 21. strengthen back up pad; 22. support slots; 23. equalizing tanks; 24. preliminary sedimentation tanks; 25. second ponds; 26. return water pipes; 27. sludge thickeners; 28. aeration agitation pipes; 29. liming adding tubes; 30. coagulating agent adding tubes; 31. mud send pipeline; 32. sludge pumps.
Embodiment
Below by specific embodiment, the utility model is described in further detail.
Embodiment 1
As shown in Figures 1 to 8, a kind of biological wastewater treatment systems, comprise equalizing tank 23, preliminary sedimentation tank 24, hydrolysis acidification pool 1, contact-oxidation pool 2 and second pond 25, described equalizing tank 23, preliminary sedimentation tank 24, hydrolysis acidification pool 1, contact-oxidation pool 2 are communicated with by a set of sewage transport pipeline with second pond 25, the bottom of equalizing tank 23, preliminary sedimentation tank 24, second pond 25 is provided with mud discharging mouth, and this mud discharging mouth is communicated with sludge thickener 27 by spoil disposal pipeline.
Described hydrolysis acidification pool 1 comprises the pond body having and hold sewage, this Chi Tishang is provided with some to upper fixed tube 6 and lower fixed tube 5, upper fixed tube 6 is identical with the fixed form of lower fixed tube 5, above fixed tube 6 is example, on this, fixed tube 6 realizes fixing by a base, this base comprises web plate 20, this web plate 20 is connected with pool wall by bolt, this web plate 20 is provided with and strengthens back up pad 21, strengthen back up pad 21 vertical with web plate 20, this web plate 20 is provided with support slot 22, upper mounted plate is installed in support slot 22, strengthen back up pad 21 be arranged at the below of support slot 22 and support described support slot 22.
Be provided with some string bio-carriers 8 between upper fixed tube 6 and lower fixed tube 5, this bio-carrier 8 comprises a nylon rope 7 be wrapped between fixed tube 6 and lower fixed tube 5, and this nylon rope 7 is provided with plastic wire.
Described hydrolysis acidification pool 1 is also provided with aerating system, this aerating system comprises the aeration supervisor of being fixed on hydrolysis acidification pool 1, described aeration supervisor comprises the aeration longitudinal tubule (L tubule) 9 of the wherein side being arranged at hydrolysis acidification pool 1, with the aeration transverse tube 10 across hydrolysis acidification pool 1 of aeration limit pipe vertical connection, described aeration transverse tube 10 is evenly provided with several point of interface, each point of interface is detachably provided with the aeration vertical tube 14 vertically arranged, the bottom of this aeration vertical tube 14 is connected with two aerations by threeway 19 and is in charge of 13, aeration is in charge of the free end shutoff of 13, each aeration is in charge of 13 and is all be arranged in parallel and aeration is in charge of 13 vertical with aeration transverse tube 10, each aeration is in charge of 13 and is arranged at the bottom in biochemical sewage pond and is positioned at the below of biochemical carrier, each aeration is in charge of on 13 and is provided with several aeration main apertures, aeration is in charge of suit on 13 and is fixed with gum cover 17, aeration main aperture wraps up and gum cover 17 is provided with several aerating pores by this gum cover 17, the bottom of described biochemical carrier is provided with demoulding and washes away pipeline.
The aerating system of this contact-oxidation pool 2 is identical with the aerating system of hydrolysis acidification pool 1.
Wherein, described aeration vertical tube 14 comprises interconnective epimere pipe 141 and hypomere pipe 142, described hypomere pipe 142 is in below the sewage level of biochemical sewage treating pond, described epimere pipe 141 is upwards extended by the below of sewage level and removably connects with a point interface for aeration transverse tube 10, lower end 25-35cm place under sewage level of described epimere pipe 141, this epimere pipe 141 is stainless steel tube.The mode of removably connecting between the upper end of described epimere pipe 141 and point interface of aeration transverse tube 10 is Flange joint.Connected by swivel nut 143 between described epimere pipe 141 and hypomere pipe 142, described swivel nut 143 is provided with internal thread, the upper end of described hypomere pipe 142, the lower end of epimere pipe 141 are provided with outside screw, and the upper end of hypomere pipe 142 and the lower end of epimere pipe 141 are threaded with swivel nut 143.The quantity of the aeration main aperture that each aeration is in charge of on 13 is four, four aeration main apertures comprise two left aeration main apertures and two right aeration main apertures, left aeration main aperture is tiltedly also arranged upward towards left avertence, right aeration main aperture is tiltedly also arranged upward towards right avertence, left aeration main aperture and right aeration main aperture mutually stagger interval arrange, the axis of left aeration main aperture and the angle of vertical direction line are 45 °, and the axis of right aeration main aperture and the angle of vertical direction line are 45 °.
The fixed form that described gum cover 17 and aeration are in charge of between 13 is: described gum cover 17 is sleeved on aeration and is in charge of on 13, sealing is sewed up in one end of gum cover 17, the other end of gum cover 17 is fixed by stainless steel pipe collar 18, and gum cover 17 and aeration are provided with spatial cache between being in charge of 13.
Described demoulding washes away pipeline and comprises the demoulding transverse tube 11 be communicated with aeration longitudinal tubule (L tubule) 9, demoulding transverse tube 11 is provided with stopping valve 16, this demoulding transverse tube 11 is communicated with demoulding vertical tube 15, this demoulding vertical tube 15 extends at the bottom of the pond of biochemical sewage treating pond always, demoulding bottom tube 12 is provided with at the bottom of this pond, demoulding bottom tube 12 is in adjacent aeration and is in charge of between 13, demoulding bottom tube 12 is provided with several scour holes.Described scour hole comprises the left scour hole on left side and the right side being in demoulding bottom tube 12 respectively and right scour hole, left scour hole is tiltedly also arranged upward towards left avertence, right scour hole is tiltedly also arranged upward towards right avertence, left scour hole and right scour hole mutually stagger interval arrange, the axis of left scour hole and the angle of vertical direction line are 45 °, and the axis of right scour hole and the angle of vertical direction line are 45 °.
As shown in Figure 8, described sludge thickener 27 comprises concentration basin body, this concentration basin body is provided with mud and enters pipeline and mud sends pipeline 31, mud is sent on pipeline 31 and is provided with sludge pump 32, concentration basin body is also provided with liming adding tube 29 and coagulating agent adding tube 30, be provided with aeration agitation pipe 28 in concentration basin body, this aeration agitation pipe 28 is responsible for aeration and is communicated with.
As shown in Figure 1, described hydrolysis acidification pool 1 adjacent with the pool wall of contact-oxidation pool 2 and become nine grids distribution, nine ponds comprise a hydrolysis acidification pool 1 and two contact-oxidation pools 2 of three contact-oxidation pools 2 of left column, three hydrolysis acidification pools 1 of right column and middle column, hydrolysis acidification pool 1 is positioned at front side, and the water-in 3 of contact-oxidation pool 2 all becomes butted line to distribute with the water-in 3 of water outlet 4, hydrolysis acidification pool 1 with water outlet 4.This mode makes current route extend, and extends the treatment time.
This biochemical sewage treating pond adopts dismountable aeration to be in charge of 13, for convenience detach, without the need to emptying the sewage in pond, carry out examine and replace aeration when ensureing normal processing and be in charge of 13, and aeration is in charge of on 13 and is provided with gum cover 17, utilize aerating pore can produce a large amount of micro-bubbles, meet enough aeration rates, meet the demand of aerobic bacteria.This Sewage treatment systems aeration is separated with washing away, can better demoulding, thus accelerates new biomembranous generation, improves the sewage treatment capacity of Sewage treatment systems.
In addition, the invention also discloses a kind of sewage water treatment method of biological wastewater treatment systems, comprise the following steps
A, the waste water that multiple pollutant discharging unit collects is sent to homogeneous water quality in equalizing tank 23; The ph value of regulating water quality is 8;
B, utilize water pump by equalizing tank 23 being sent in preliminary sedimentation tank 24 of continuing of the sewage of homogeneous carry out just heavy, the flooding velocity of settling tank is 100t/h, first in preliminary sedimentation tank 24, add the ferrous sulfate solvent that concentration is 25%, ferrous sulfate solvent is 2.2 ‰ with the wastewater volume ratio in preliminary sedimentation tank 24, and then the white lime water of 4% is added to preliminary sedimentation tank 24, white lime water is 12 ‰ with the wastewater volume ratio in preliminary sedimentation tank 24, and waste water is precipitin reaction time 7h in preliminary sedimentation tank 24;
C, utilize water pump to be continued to be sent in hydrolysis acidification pool 1 by the supernatant liquor in preliminary sedimentation tank 24, the water flow of preliminary sedimentation tank 24 is 100t/h, utilizes sludge pump 32 to send in sludge thickener 27 by the mud of precipitation at the bottom of the pond of preliminary sedimentation tank 24;
D, sewage carry out biomembrance process and deeply dispose of sewage in hydrolysis acidification pool 1, and bio-carrier 8 spacing in hydrolysis acidification pool 1 is 12cm, and utilize aerating system from aeration below carrier, and the air water volume ratio of aeration is 5; After the microbial film of attachment on bio-carrier 8 is aging, utilize flushing system to wash away aging microbial film, force demoulding;
E, waste water after hydrolysis acidification pool 1 processes flow into deeply process further in contact-oxidation pool 2, and bio-carrier 8 spacing of contact-oxidation pool 2 is 14cm, and utilize dismountable aeration to be in charge of 13 to continue aerations, and the air water volume ratio of aeration is 18; The quantity of contact-oxidation pool 2 is 5, the quantity of hydrolysis acidification pool 1 is 4 and arranges with contact-oxidation pool 2 one-tenth nine grid, the water flow inside route of contact-oxidation pool 2 and hydrolysis acidification pool 1 is diagonal lines flowing, after the microbial film of attachment on the bio-carrier 8 in contact-oxidation pool 2 is aging, utilize demoulding to wash away pipeline to wash away aging microbial film, force demoulding;
F, waste water after contact-oxidation pool process are sent in second pond according to the transfer rate that flow is 100t/h, a part of return of waste water is in hydrolysis acidification pool simultaneously, 0.5%PAC solution is added in second pond, the volume ratio of the wastewater flow rate of PAC solution and second pond is 6 ‰, adds the PAM solution of 0.5 ‰ in second pond; The volume ratio of the wastewater flow rate of PAM solution and second pond is 6 ‰, precipitin reaction time 14h,
The supernatant liquor discharge of G, second pond 25, and the mud of second pond 25 is sent in sludge thickener 27;
Through plate type pressure filter compacting mud cake after the mud of H, second pond 25 and the mud of preliminary sedimentation tank 24 enter and concentrate in sludge thickener 27.
Preferably, in described sludge thickener 27, the concentration method of mud is: the mud in sludge thickener 27 is modulated into the wet mud that water ratio is 95%, according to 1.3Kg/m
3ratio add unslaked lime, after aeration agitation reacts 30 minutes, then add 3.3L/m
3ratio add concentration be 1 ‰ PAM aqueous solution aeration agitation react 10 minutes.The aeration of contact-oxidation pool 2 is in charge of 13 and is in charge of spaced and parallel spaced set with the demoulding that demoulding washes away pipeline, and the angle of what demoulding was in charge of wash away air flow line and perpendicular is 45 °.
Embodiment 2
The same biological wastewater treatment systems that this embodiment 1 adopts with embodiment 1, but change to some extent in the parameter for the treatment of process, the invention also discloses a kind of sewage water treatment method of biological wastewater treatment systems, comprise the following steps
A, the waste water that multiple pollutant discharging unit collects is sent to homogeneous water quality in equalizing tank 23;
B, utilize water pump by equalizing tank being sent in preliminary sedimentation tank of continuing of the sewage of homogeneous carry out just heavy, the flooding velocity of settling tank is 250t/h, first in preliminary sedimentation tank, add the ferrous sulfate solvent that concentration is 30%, ferrous sulfate solvent is 2.7 ‰ with the wastewater volume ratio in preliminary sedimentation tank, and then to preliminary sedimentation tank add 7% white lime water, white lime water is 14 ‰ with the wastewater volume ratio in preliminary sedimentation tank, and waste water is precipitin reaction time 3h in preliminary sedimentation tank;
C, utilize water pump to be continued to be sent in hydrolysis acidification pool 1 by the supernatant liquor in preliminary sedimentation tank 24, the water flow of preliminary sedimentation tank 24 is 250t/h, utilizes sludge pump 32 to send in sludge thickener 27 by the mud of precipitation at the bottom of the pond of preliminary sedimentation tank 24;
D, sewage carry out biomembrance process and deeply dispose of sewage in hydrolysis acidification pool 1, and bio-carrier 8 spacing in hydrolysis acidification pool 1 is 14cm, and utilize aerating system from aeration below carrier, and aeration rate is 10; After the microbial film of attachment on bio-carrier 8 is aging, utilize flushing system to wash away aging microbial film, force demoulding;
E, waste water after hydrolysis acidification pool 1 processes flow into deeply process further in contact-oxidation pool 2, and bio-carrier 8 spacing of contact-oxidation pool 2 is 16cm, and utilize dismountable aeration to be in charge of 13 to continue aerations, and the air water volume ratio of aeration is 22; The quantity of contact-oxidation pool 2 is 4, the quantity of hydrolysis acidification pool 1 is 5 and arranges with contact-oxidation pool 2 one-tenth nine grid, the water flow inside route of contact-oxidation pool 2 and hydrolysis acidification pool 1 is diagonal lines flowing, after the microbial film of attachment on the bio-carrier 8 in contact-oxidation pool 2 is aging, utilize demoulding to wash away pipeline to wash away aging microbial film, force demoulding;
F, through contact-oxidation pool 2 process after waste water be sent in second pond according to the transfer rate that flow is 250t/h, a part of return of waste water is in hydrolysis acidification pool simultaneously, 1.5%PAC solution is added in second pond, the volume ratio of the wastewater flow rate of PAC solution and second pond is 9 ‰, adds the PAM solution of 1.2 ‰ in second pond; The volume ratio of the wastewater flow rate of PAM solution and second pond is 9 ‰, precipitin reaction time 6h,
The supernatant liquor discharge of G, second pond 25, and the mud of second pond 25 is sent in sludge thickener 27;
Through plate type pressure filter compacting mud cake after the mud of H, second pond 25 and the mud of preliminary sedimentation tank 24 enter and concentrate in sludge thickener 27.
Preferably, in described sludge thickener 27, the concentration method of mud is: the mud in sludge thickener 27 is modulated into the wet mud that water ratio is 95%, according to 4Kg/m
3ratio add unslaked lime, after aeration agitation reacts 60 minutes, then add 13.3L/m
3ratio add concentration be 1 ‰ PAM aqueous solution aeration agitation react 15 minutes.
Embodiment 3
The same biological wastewater treatment systems that this embodiment 3 adopts with embodiment 1, but change to some extent in the parameter for the treatment of process, the invention also discloses a kind of sewage water treatment method of biological wastewater treatment systems, comprise the following steps
A, the waste water that multiple pollutant discharging unit collects is sent to homogeneous water quality in equalizing tank 23;
B, utilize water pump by equalizing tank being sent in preliminary sedimentation tank of continuing of the sewage of homogeneous carry out just heavy, the flooding velocity of settling tank is 150t/h, first in preliminary sedimentation tank, add the ferrous sulfate solvent that concentration is 27%, ferrous sulfate solvent is 2.5 ‰ with the wastewater volume ratio in preliminary sedimentation tank, and then to preliminary sedimentation tank add 5% white lime water, white lime water is 13 ‰ with the wastewater volume ratio in preliminary sedimentation tank, and waste water is precipitin reaction time 5h in preliminary sedimentation tank;
C, utilize water pump to be continued to be sent in hydrolysis acidification pool 1 by the supernatant liquor in preliminary sedimentation tank 24, the water flow of preliminary sedimentation tank 24 is 150t/h, utilizes sludge pump 32 to send in sludge thickener 27 by the mud of precipitation at the bottom of the pond of preliminary sedimentation tank 24;
D, sewage carry out biomembrance process and deeply dispose of sewage in hydrolysis acidification pool 1, and bio-carrier 8 spacing in hydrolysis acidification pool 1 is 13cm, and utilize aerating system from aeration below carrier, and the air water volume ratio of aeration is 7; After the microbial film of attachment on bio-carrier 8 is aging, utilize flushing system to wash away aging microbial film, force demoulding;
E, waste water after hydrolysis acidification pool 1 processes flow into deeply process further in contact-oxidation pool 2, and bio-carrier 8 spacing of contact-oxidation pool 2 is 15cm, and utilize dismountable aeration to be in charge of 13 to continue aerations, and the air water volume ratio of aeration is 20; The quantity of contact-oxidation pool 2 is 5, the quantity of hydrolysis acidification pool 1 is 4 and arranges with contact-oxidation pool 2 one-tenth nine grid, the water flow inside route of contact-oxidation pool 2 and hydrolysis acidification pool 1 is diagonal lines flowing, after the microbial film of attachment on the bio-carrier 8 in contact-oxidation pool 2 is aging, utilize demoulding to wash away pipeline to wash away aging microbial film, force demoulding;
F, waste water after contact-oxidation pool process are sent in second pond according to the transfer rate that flow is 150t/h, a part of return of waste water is in hydrolysis acidification pool simultaneously, 1%PAC solution is added in second pond, the volume ratio of the wastewater flow rate of PAC solution and second pond is 7 ‰, adds the PAM solution of 1 ‰ in second pond; The volume ratio of the wastewater flow rate of PAM solution and second pond is 7 ‰, precipitin reaction time 10h,
The supernatant liquor discharge of G, second pond 25, and the mud of second pond 25 is sent in sludge thickener 27;
Through plate type pressure filter compacting mud cake after the mud of H, second pond 25 and the mud of preliminary sedimentation tank 24 enter and concentrate in sludge thickener 27.
Preferably, in described sludge thickener 27, the concentration method of mud is: the mud in sludge thickener 27 is modulated into the wet mud that water ratio is 95%, according to 2Kg/m
3ratio add unslaked lime, after aeration agitation reacts 45 minutes, then add 10L/m
3ratio add concentration be 1 ‰ PAM aqueous solution aeration agitation react 12 minutes.
In embodiment 1,2,3, the method for sludge condensation compares with existing sludge settling condensing mode, and each parameter of plate type pressure filter is identical, and after pressure filter Isobarically Control, frequency conversion terminates press filtration desliming after being reduced to 40HZ, press pump pressure zero, and its data are as follows:
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Prior art | |
| The press filtration cycle (unit: hour/frame) | 3.5 | 1.8 | 2.5 | 4.5 |
| Moisture content of the cake (per-cent) | 55％ | 46％ | 51％ | 59％ |
| Hmc (unit: cm) | 1.9 | 2.6 | 2.3 | 1.8 |
| Mud cake weight (unit: ton) | 1.9 | 2.6 | 2.3 | 1.7 |
In sum, after utilizing this sludge concentration method, shorten the time of filter pressing of mud, reduce water content.
Claims (7)
1. a biological wastewater treatment systems, it is characterized in that: comprise equalizing tank, preliminary sedimentation tank, hydrolysis acidification pool, contact-oxidation pool and second pond, described equalizing tank, preliminary sedimentation tank, hydrolysis acidification pool, contact-oxidation pool is communicated with by a set of sewage transport pipeline with second pond, equalizing tank, preliminary sedimentation tank, the bottom of second pond is provided with mud discharging mouth, this mud discharging mouth is communicated with sludge thickener by spoil disposal pipeline, described hydrolysis acidification pool is identical with catalytic oxidation pool structure, described hydrolysis acidification pool and contact-oxidation pool include the pond body having and hold sewage, this Chi Tishang is provided with some to upper fixed tube and lower fixed tube, between upper fixed tube and lower fixed tube, some string bio-carriers are installed, described hydrolysis acidification pool is also provided with aerating system, this aerating system comprises the aeration supervisor of being fixed on hydrolysis acidification pool, described aeration supervisor comprises the aeration longitudinal tubule (L tubule) of the wherein side being arranged at hydrolysis acidification pool, with the aeration transverse tube across hydrolysis acidification pool of aeration limit pipe vertical connection, described aeration transverse tube is evenly provided with several point of interface, each point of interface is detachably provided with the aeration vertical tube vertically arranged, the bottom of this aeration vertical tube is connected with two aerations by threeway and is in charge of, the free end shutoff that aeration is in charge of, each aeration is in charge of and is all be arranged in parallel and aeration is in charge of vertical with aeration transverse tube, each aeration is in charge of the bottom that is arranged at biochemical sewage pond and is positioned at the below of biochemical carrier, each aeration is in charge of and is provided with several aeration main apertures, aeration is in charge of suit and is fixed with gum cover, aeration main aperture wraps up and gum cover is provided with several aerating pores by this gum cover, the bottom of described biochemical carrier is provided with demoulding and washes away pipeline.
2. a kind of biological wastewater treatment systems as claimed in claim 1, it is characterized in that: described aeration vertical tube comprises interconnective epimere pipe and hypomere pipe, described hypomere pipe is in below the sewage level of biochemical sewage treating pond, described epimere pipe is upwards extended by the below of sewage level and removably connects with a point interface for aeration transverse tube, lower end 25-35cm place under sewage level of described epimere pipe, this epimere pipe is stainless steel tube.
3. a kind of biological wastewater treatment systems as claimed in claim 2, it is characterized in that: described gum cover and aeration be in charge of between fixed form be: described gum cover is sleeved on aeration and is in charge of, sealing is sewed up in one end of gum cover, the other end of gum cover is fixed by stainless steel pipe collar, and gum cover and aeration are provided with spatial cache between being in charge of.
4. a kind of biological wastewater treatment systems as claimed in claim 3, it is characterized in that: described demoulding washes away pipeline and comprises the demoulding transverse tube be communicated with aeration longitudinal tubule (L tubule), demoulding transverse tube is provided with stopping valve, this demoulding transverse tube is communicated with demoulding vertical tube, this demoulding vertical tube extends at the bottom of the pond of biochemical sewage treating pond always, be provided with demoulding bottom tube at the bottom of this pond, demoulding bottom tube is between adjacent aeration is in charge of, and demoulding bottom tube is provided with several scour holes.
5. a kind of biological wastewater treatment systems as claimed in claim 4, it is characterized in that: described scour hole comprises the left scour hole on left side and the right side being in demoulding bottom tube respectively and right scour hole, left scour hole is tiltedly also arranged upward towards left avertence, right scour hole is tiltedly also arranged upward towards right avertence, left scour hole and right scour hole mutually stagger interval arrange, the axis of left scour hole and the angle of vertical direction line are 45 °, and the axis of right scour hole and the angle of vertical direction line are 45 °.
6. a kind of biological wastewater treatment systems as claimed in claim 5, it is characterized in that: described sludge thickener comprises concentration basin body, this concentration basin body is provided with mud and enters pipeline and mud sends pipeline, mud is sent on pipeline and is provided with sludge pump, concentration basin body is also provided with liming adding tube and coagulating agent adding tube, be provided with aeration agitation pipe in concentration basin body, this aeration agitation pipe is responsible for aeration and is communicated with.
7. a kind of biological wastewater treatment systems as claimed in claim 6, it is characterized in that: described hydrolysis acidification pool adjacent with the pool wall of contact-oxidation pool and become nine grids distribution, nine ponds comprise a hydrolysis acidification pool and two contact-oxidation pools of three contact-oxidation pools of left column, three hydrolysis acidification pools of right column and middle column, hydrolysis acidification pool is positioned at front side, and the water-in of contact-oxidation pool all becomes butted line to distribute with the water-in of water outlet, hydrolysis acidification pool and water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520656536.9U CN204918319U (en) | 2015-08-28 | 2015-08-28 | Biological sewage treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520656536.9U CN204918319U (en) | 2015-08-28 | 2015-08-28 | Biological sewage treatment system |
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| CN204918319U true CN204918319U (en) | 2015-12-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036492A (en) * | 2015-08-28 | 2015-11-11 | 张家港市清源水处理有限公司 | Biological sewage treatment system and sewage treatment method |
| CN110143724A (en) * | 2019-05-30 | 2019-08-20 | 河北宁纺集团有限责任公司 | A kind of new process of highly concentrated dyeing and printing sewage processing |
-
2015
- 2015-08-28 CN CN201520656536.9U patent/CN204918319U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036492A (en) * | 2015-08-28 | 2015-11-11 | 张家港市清源水处理有限公司 | Biological sewage treatment system and sewage treatment method |
| CN105036492B (en) * | 2015-08-28 | 2017-07-28 | 张家港市清源水处理有限公司 | A kind of biological wastewater treatment systems and sewage water treatment method |
| CN110143724A (en) * | 2019-05-30 | 2019-08-20 | 河北宁纺集团有限责任公司 | A kind of new process of highly concentrated dyeing and printing sewage processing |
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