CN109354334A - Biological wastewater treatment systems and sewage water treatment method - Google Patents
Biological wastewater treatment systems and sewage water treatment method Download PDFInfo
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- CN109354334A CN109354334A CN201811516727.XA CN201811516727A CN109354334A CN 109354334 A CN109354334 A CN 109354334A CN 201811516727 A CN201811516727 A CN 201811516727A CN 109354334 A CN109354334 A CN 109354334A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/06—Aerobic processes using submerged filters
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
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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 present invention provides a kind of biological wastewater treatment systems and sewage water treatment methods, system includes overflow well, middle grid, inlet pumping station is defeated, winding shaft, fine fack, advection settling pit, primary sedimentation tank, comprehensive biochemistry pool, the comprehensive biochemistry pool includes anaerobic pond, biological feedingization pond and biochemical aeration tank, the rear end of the biochemical aeration tank is secondary settling tank, mud is delivered to sludge concentration tank by the silt basin that flows back by secondary mud elevator pump by the bottom of secondary settling tank, the rear end of secondary settling tank is disinfecting tank, the sludge concentration tank by conveyer belt is delivered to level-one slaking apparatus and second level slaking apparatus after sludge is concentrated, then it is suppressed and is transported outward by cake-making machine.The present invention also provides a kind of sewage water treatment methods to be compared with the traditional technology based on above-mentioned system, and the present invention can remove deliquescent in biological sewage and colloidal organic pollutant by three-level biochemical processing process.
Description
Technical field
The present invention relates to a kind of biological sewage processing technology field, in particular biological wastewater treatment systems and sewage treatments
Method.
Background technique
The method that the aerating system of biofilm water process is generally used bottom installation film aeration plate at present, such peace
Dress mode makes can be extremely troublesome when needing to overhaul, and needs to empty entire biochemistry pool, causes system to be unable to run, examine simultaneously
The cost repaired also significantly increases.And simultaneously, the biomembrane for being attached to the aging on bio-carrier can only be by increasing aeration plate
Aeration quantity is washed away, and the aeration quantity that the back segment of biochemical sewage processing pond needs is not high, therefore, it is impossible to using aeration is just increased
It measures to wash away the biomembrane of aging, causes wastewater treatment efficiency to reduce in this way.
In existing technology, such as: " CN201510536098.7 " discloses a kind of biological wastewater treatment systems, including adjusts
Save pond, primary sedimentation tank, hydrolysis acidification pool, contact-oxidation pool and secondary settling tank, the conditioning tank, primary sedimentation tank, hydrolysis acidification pool, contact oxygen
Change pond be connected to secondary settling tank by a set of sewage transport pipeline, conditioning tank, primary sedimentation tank, secondary settling tank bottom be provided with spoil disposal
Mouthful, which is connected to by spoil disposal pipeline with sludge concentration tank, and the hydrolysis acidification pool is identical with catalytic oxidation pool structure, institute
Stating hydrolysis acidification pool and contact-oxidation pool includes the pond body with receiving sewage, is provided in the pond body several to upper fixing pipe
With lower fixing pipe, several string bio-carriers are installed between upper fixing pipe and lower fixing pipe, are also set up on the hydrolysis acidification pool
There is aerating system, which includes the aeration supervisor being fixed on hydrolysis acidification pool, and the aeration supervisor includes being set to
The aeration longitudinal tubule (L tubule) of wherein a side of hydrolysis acidification pool, the aeration cross across hydrolysis acidification pool with aeration side pipe vertical connection
It manages, several tap mouths is evenly arranged on the aeration transverse tube, each tap mouth is detachably equipped with the aeration being vertically arranged
Vertical tube, the bottom of the aeration vertical tube are connected with two aerations by threeway and are in charge of, and are aerated the free end being in charge of and block, each aeration point
Guan Jun be arranged in parallel and be aerated be in charge of with aeration transverse tube it is vertical, each aeration is in charge of the bottom for being set to biochemical sewage pond and is located at
The lower section of biochemical carrier, each aeration, which is in charge of, is provided with several aeration main apertures, and aeration is in charge of suit and is fixed with gum cover, should
Gum cover, which will be aerated on main aperture package and gum cover, is provided with several aerating pores, and the bottom of the biochemistry carrier is provided with demoulding punching
Brush pipeline.
In above-mentioned technology, when carrying out biochemical treatment, sinker, grease, dross cannot effectively be removed, cause pipe
Road blocking, while in biochemical process, step is too single, not can be removed organic matter.
Summary of the invention
In view of this, the main purpose of the present invention is to provide a kind of biological wastewater treatment systems and sewage water treatment methods.
The concrete scheme that it is used is as follows:
Biological wastewater treatment systems, including overflow well, middle grid, inlet pumping station are defeated, winding shaft, fine fack, advection desilting
Pond, primary sedimentation tank, comprehensive biochemistry pool, the comprehensive biochemistry pool includes anaerobic pond, biological feedingization pond and biochemical aeration tank, institute
The rear end for stating biochemical aeration tank is secondary settling tank, and mud is passed through reflux silt basin by secondary mud elevator pump by the bottom of secondary settling tank
Be delivered to sludge concentration tank, the rear end of secondary settling tank is disinfecting tank, the sludge concentration tank sludge is concentrated after by
Conveyer belt is delivered to level-one slaking apparatus and second level slaking apparatus, and the first agitating device, the life are provided in the anaerobic pond
Changing aeration tank includes the disperser for being arranged at four orientation of biochemical aeration tank inner wall, and is arranged in biochemical aeration tank
Second agitating device is set, and the disperser includes the diffuser being arranged in inside biochemical aeration tank, which is in loudspeaker
Shape structure, diffuser connect Liqiud-gas mixing device, the upper end of Liqiud-gas mixing device are provided with diffusion vane, the diffusion vane
It is driven by Diffusion fan, is provided with water inlet pipe and Liqiud-gas mixing device in diffuser rear end in the bottom of Liqiud-gas mixing device
Place is provided with the nozzle of matching diffuser, and the top of nozzle is connect with air inlet pipe；Water flow can be arranged by being connected at water inlet pipe
Horizontal elevator pump, horizontal elevator pump rapidly conveys biological sewage into Liqiud-gas mixing device, and air inlet pipe guides air to enter
Liqiud-gas mixing device and in conjunction with water flow, is finally discharged by diffuser, the water flow that biological sewage is generated by horizontal elevator pump into
When entering Liqiud-gas mixing device, speed can change, and form high-velocity flow, while negative pressure is formed in Liqiud-gas mixing device, with
The air inlet pipe on diffuser is set to suck air, air can form liquid gas mixed flow in conjunction with water flow, and last high speed is spouting,
In can carry a large amount of bubble secretly, in the waters of larger area and depth be vortexed stirring, complete aeration.
Further, the front end of the overflow well is mentioned by overflow well by first by water receiving pipe pass into biological sewage
The middle grid for rising pump and Pipeline transport to overflow well rear end, grid pass through again after removing biggish solids after slightly scraping mud in
Inlet pumping station is crossed to be delivered in winding shaft, by winding shaft be delivered to fine fack carry out it is secondary scrape mud, after removing tiny solids
Into advection settling pit, advection settling pit removes the preparatory sedimentation separation of massive sand in biological sewage, then by advection
Settling pit slowly flows to primary sedimentation tank, and it is heavy that the sludge in biological sewage early decline, and the sludge of sedimentation is by primary sedimentation tank bottom through becoming silted up
Mud elevator pump is delivered to sludge concentration tank, and the biological sewage after preliminary sedimentation enters comprehensive biochemistry pool, the comprehensive biochemistry pool packet
Anaerobic pond, biological feedingization pond and biochemical aeration tank are included, the anaerobic pond makes organic in biological sewage using anaerobic bacteria
Hydrolysis, acidification and methanation occur for object, remove the organic matter in waste water, biological feedingization pond removes biological sewage again
In deliquescent and colloidal organic pollutant, the biochemical aeration tank controls blower device by measurement dissolved oxygen content
The bubble disperse in biological sewage is escaped with the disperser that biochemical aeration tank side is arranged in by pipeline, in gas-liquid interface
Oxygen is dissolved in water, secondary by deliquescent and colloidal organic pollutant removal, the rear end of the biochemical aeration tank is
The sewage for removing organic matter is carried out silt settling again by secondary settling tank, the secondary settling tank, and secondary mud is passed through in the bottom of secondary settling tank
Mud is delivered to sludge concentration tank by the silt basin that flows back by elevator pump, and the rear end of secondary settling tank is disinfecting tank, contact sterilizing
Pond is using the pathogenic micro-organism in liquid chlorine removal water body, and then clear water is through piping outlet, the sludge concentration tank by sludge into
It is delivered to level-one slaking apparatus and second level slaking apparatus by conveyer belt after row concentration, is digested by level-one slaking apparatus and second level
In device aerobic-anaerobic microbe and obligate anaerobe degradation sludge in organic principle, then by cake-making machine compacting outward transport.
Further, the outlet side of the blower device connects one or two points of valves by solenoid valve, and pipeline connects two points of valves all the way
It is connected to biological feedingization pond, another pipeline accesses to air inlet pipe by force (forcing) pump.
Further, the level-one slaking apparatus is identical with the structure of second level slaking apparatus, includes closed shell, if
Agitating device inside housings, and the heating device of setting on the inner wall of the housing are set, multiple digestion inside housings are set
Tracheae.
Further, the bottom of the advection settling pit is provided with V-groove, and the gentle slope on V-groove two sides will be for that will give birth to
The preparatory sedimentation separation removal of massive sand in object sewage.
Further, it is provided among the primary sedimentation tank and secondary settling tank to recessed sedimentation, sedimentation is to two sides in slow
Ramp shaped.
Further, the structure of first agitating device and the second agitating device is identical, includes that bottom of pond is arranged in
Motor control room, setting are provided with sealing mechanism in the indoor stirring motor of motor control, stirring motor and bottom of pond, in stirring electricity
It is provided with shaft coupling on machine, is provided with agitating shaft on the shaft coupling, several successively oppositely arranged stir is provided on agitating shaft
Blade is mixed, the stirring blade includes diffusion component, the mounting portion of diffusion component middle part is arranged in, the mounting portion and agitating shaft
It is connected and fixed, the edge of diffusion component is provided with diffusion vane arranged in a uniform, spreading grooves are provided on diffusion vane, it is described
Spreading grooves include the diffusion sheet tilted down along diffusion component, and diffusion identical and center symmetric setting as diffusion sheet area
The angle of the horizontal direction of hole, the diffusion sheet and diffusion component is 30~45 °.
The present invention also provides a kind of sewage water treatment methods, based on biological wastewater treatment systems described above, including such as
Lower step:
A: biological sewage enters overflow well by water receiving pipe, and overflow well is stored mainly as sewage, prevents sewage disposal process
The overflow of middle sewage；
B: by overflow well by the first elevator pump and Pipeline transport to the middle grid of overflow well rear end, grid carries out thick in
After scraping the biggish suspended solids of mud removal, including floating material；
C: by winding shaft be delivered to fine fack carry out it is secondary scrape mud, after removing tiny suspended solids, including dross；
D: it is secondary scrape mud after, biochemical sewage enters to advection settling pit, and the bottom of advection settling pit is provided with V-groove, V
The gentle slope on type groove two sides is used to remove the massive sand in biological sewage by the sedimentation of V-groove bottom and preparatory sedimentation separation
It removes, wherein partial size is greater than 0.2mm in main removal sewage, and density is greater than 2.65t/ cubic metres of sand grains；It is arranged 1~2 in bottom of pond
A sand bin, under run in sandpipe, setting flow velocity is 0.15~0.3m/s, and the residence time should be greater than 30 seconds, and sand setting moisture content is
60%, bulk density 1.5t/m3 are strike-off using machinery, gravity or hydroelevator sediment outflow；
E: after preparatory sedimentation separation removes massive sand, biological sewage enters primary sedimentation tank, by the sludge in biological sewage
It is heavy early decline, and the sludge of sedimentation is delivered to sludge concentration tank through mud elevator pump by primary sedimentation tank bottom, and to make to become a mandarin, sewage is equal
Even to enter sedimentation basin with stable, inhalant region should have rectification baffle plate, and rectification baffle plate is higher by water 0.1~0.15m of the water surface, baffle
Submergence should be no less than 0.25m, and generally with 0.5~1.0m, rectification baffle plate is away from 0.5~1.0m of water inlet；
F: the biological sewage after preliminary sedimentation enters comprehensive biochemistry pool, in the comprehensive biochemistry pool step, comprising as follows
Specific steps:
F1: make the organic matter in biological sewage that hydrolysis, acidification and methanation, removal occur using anaerobic bacteria by anaerobic pond
Organic matter in waste water keeps the anaerobic pond pH value that should maintain between 6.5~7.8 in the whole process, temperature 35~
Between 40 DEG C, removal efficiency: SS is in 85% or so, COD in 80% or so, BOD 70% or so；It is described to detest in the F1 stage
The first agitating device is provided in oxygen pond, the first agitating device includes the motor control room that bottom of pond is arranged in, and is arranged in motor control
Indoor stirring motor is made, stirring motor and bottom of pond are provided with sealing mechanism, shaft coupling are provided on stirring motor, the shaft coupling
It is provided with agitating shaft on device, several successively oppositely arranged stirring blades are provided on agitating shaft, the stirring blade includes
The mounting portion of diffusion component middle part is arranged in diffusion component, which is connected and fixed with agitating shaft, on the side of diffusion component
Along being provided with diffusion vane arranged in a uniform, be provided with spreading grooves on diffusion vane, the spreading grooves include along diffusion component to
Under inclined diffusion sheet, and diffusion hole identical and center symmetric setting as diffusion sheet area, the diffusion sheet and diffusion group
The angle of the horizontal direction of part is 30~45 °；
F2: biological feedingization pond removes deliquescent in biological sewage and colloidal organic pollutant again,
F3: for biochemical aeration tank by measurement dissolved oxygen content, control blower device is by pipeline and is arranged in biochemical aeration
The disperser of pond side by biological sewage bubble disperse escape, oxygen is dissolved in water in gas-liquid interface, it is secondary will be molten
Solution property and colloidal organic pollutant removal, wherein water flow can by be connected at water inlet pipe be arranged horizontal elevator pump,
Horizontal elevator pump rapidly conveys biological sewage into Liqiud-gas mixing device, and air inlet pipe guidance air enters Liqiud-gas mixing device simultaneously
It in conjunction with water flow, is finally discharged by diffuser, the water flow that biological sewage is generated by horizontal elevator pump is entering Liqiud-gas mixing device
When, speed can change, form high-velocity flow, while forming negative pressure in Liqiud-gas mixing device so that on diffuser into
Tracheae sucks air, and air can form liquid gas mixed flow in conjunction with water flow, and last high speed is spouting, wherein can carry secretly a large amount of
Bubble, be vortexed stirring in the waters of larger area and depth, completes aeration,
G: entering secondary settling tank after comprehensive biochemistry pool processing, secondary settling tank again becomes silted up the sewage for removing organic matter
Mud sedimentation, to make to become a mandarin, sewage uniformly enters sedimentation basin with stable, and inhalant region should have rectification baffle plate, and rectification baffle plate is higher by water
The submergence of 0.05~0.10m of the water surface, baffle should be no less than 0.15m, and generally with 0.2~0.5m, rectification baffle plate is away from water inlet
0.2~0.5m；
H: the rear end of secondary settling tank is disinfecting tank, and disinfecting tank removes the pathogenic micro-organism in water body using liquid chlorine,
Then clear water is through piping outlet, wherein liquid chlorine can be substituted with NaClO, CaClO；
I: sludge concentration tank is delivered to level-one slaking apparatus by conveyer belt after sludge is concentrated and second level digestion fills
Set, by aerobic-anaerobic microbe in level-one slaking apparatus and second level slaking apparatus and obligate anaerobe degrade in sludge it is organic at
Point, it is then suppressed and is transported outward by cake-making machine.
Beneficial effects of the present invention:
It is compared with the traditional technology, the present invention can be provided good by aeration tank to the microorganism in biochemical aeration tank
Environment, water flow can be by being connected to the horizontal elevator pump being arranged at water inlet pipe, and horizontal elevator pump rapidly conveys biological sewage and arrives
In Liqiud-gas mixing device, air inlet pipe guidance air enters Liqiud-gas mixing device and in conjunction with water flow, is finally discharged by diffuser, raw
When entering Liqiud-gas mixing device, speed can change the water flow that object sewage is generated by horizontal elevator pump, form high-velocity flow,
Negative pressure is formed in Liqiud-gas mixing device simultaneously so that air inlet pipe on diffuser sucks air, air can in conjunction with water flow shape
At liquid gas mixed flow, last high speed is spouting, wherein a large amount of bubble can be carried secretly, the whirlpool in the waters of larger area and depth
Rotation stirring, completes aeration.
It is compared with the traditional technology, the present invention can remove dissolubility in biological sewage by three-level biochemical processing process
And colloidal organic pollutant；
Before entering biochemical treatment, the present invention is provided with middle barrier, thin barrier, horizontal-flow grit chamber and primary sedimentation tank, can
With effectively by after suspended solids, including the removal of sinker, grease, dross, it not will lead to the stifled of backend process processing pipeline
Plug.
Detailed description of the invention
Fig. 1 is system framework schematic diagram of the invention；
Fig. 2 is the structure chart of aeration tank in the present invention；
Fig. 3 is the structural schematic diagram of stirring blade in the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to figs. 1 to Fig. 3, the present invention provides a kind of biological wastewater treatment systems, including overflow well 2, the overflow well 2
Biological sewage is introduced by water receiving pipeline 1 in front end, passes through the first elevator pump and Pipeline transport to overflow well rear end by overflow well 2
Middle grid 3, grid 3 removes after slightly being scraped mud and is delivered to winding shaft 5 using inlet pumping station 4 after biggish solids in
In, by winding shaft 5 be delivered to fine fack 6 carry out it is secondary scrape mud, remove and enter advection settling pit 7, advection after tiny solids
Settling pit 7 removes the preparatory sedimentation separation of massive sand in biological sewage, and then by advection settling pit 7, slowly flow direction is just heavy
Sludge in biological sewage early decline heavy 8 by pond 8, and the sludge of sedimentation is delivered to dirt through mud elevator pump by 8 bottom of primary sedimentation tank
Mud thickener 18, the biological sewage after preliminary sedimentation enter comprehensive biochemistry pool, and the comprehensive biochemistry pool includes anaerobic pond 12, biology
Feedingization pond 13 and biochemical aeration tank 14 are contacted, the anaerobic pond 12 makes the organic matter in biological sewage that water occur using anaerobic bacteria
Solution, acidification and methanation, remove the organic matter in waste water, biological feedingization pond 13 removes again dissolves in biological sewage
Property and colloidal organic pollutant, the biochemical aeration tank 14 by measurement dissolved oxygen content, control blower device 9 pass through
Pipeline escapes the bubble disperse in biological sewage with the disperser that 14 side of biochemical aeration tank is arranged in, in gas-liquid interface handle
Oxygen dissolves in water, and secondary by deliquescent and colloidal organic pollutant removal, the rear end of the biochemical aeration tank 14 is
The sewage for removing organic matter is carried out silt settling again by secondary settling tank 15, the secondary settling tank 15, and the bottom of secondary settling tank 15 passes through two
Mud is delivered to sludge concentration tank 18 by the silt basin that flows back by secondary mud elevator pump 17, and the rear end of secondary settling tank 15 is contact sterilizing
Pond 16, disinfecting tank 16 is using the pathogenic micro-organism in liquid chlorine removal water body, and then clear water is through piping outlet, the sludge
Concentration basin 18 by conveyer belt is delivered to level-one slaking apparatus 19 and second level slaking apparatus 20 after sludge is concentrated, and passes through one
Grade slaking apparatus 19 and second level slaking apparatus 20 in aerobic-anaerobic microbe and obligate anaerobe degradation sludge in organic principle, so
It is suppressed and is transported outward by cake-making machine afterwards.
Among the above, the disperser includes the diffuser 141 being arranged in inside biochemical aeration tank 14, the diffuser 141
Flare structure, diffuser 141 connect Liqiud-gas mixing device, the upper end of Liqiud-gas mixing device are provided with diffusion vane 143,
The diffusion vane 143 is driven by Diffusion fan 141, and the bottom of Liqiud-gas mixing device is provided with water inlet pipe 145 and gas-liquid
Mixing arrangement is provided with the nozzle 146 of matching diffuser at diffuser rear end, and the top of nozzle 146 is connect with air inlet pipe 140.
Water flow can be by being connected to the horizontal elevator pump 144 being arranged at water inlet pipe, and horizontal elevator pump 144 rapidly conveys biological sewage and arrives
In Liqiud-gas mixing device, air inlet pipe guidance air enters Liqiud-gas mixing device and in conjunction with water flow, finally by 141 row of diffuser
Out, when entering Liqiud-gas mixing device, speed can change the water flow that biological sewage is generated by horizontal elevator pump 145, be formed
High-velocity flow, while negative pressure is formed in Liqiud-gas mixing device, so that the air inlet pipe on diffuser 141 sucks air, air meeting
Liquid gas mixed flow is formed in conjunction with water flow, last high speed is spouting, wherein a large amount of bubble can be carried secretly, in larger area and depth
Be vortexed stirring in the waters of degree, completes aeration.
Among the above, it is provided with the first agitating device in anaerobic pond 12, the second agitating device is provided in biochemical aeration tank 14,
First agitating device is identical as the structure of the second agitating device, includes the motor control room 148 that bottom of pond is arranged in, setting
Stirring motor 149 in motor control room 148, stirring motor 149 and bottom of pond are provided with sealing mechanism 150, in stirring motor
Be provided with shaft coupling 151 on 150, be provided with agitating shaft 152 on the shaft coupling 151, be provided on agitating shaft 152 it is several successively
Oppositely arranged stirring blade 154, the stirring blade 154 include diffusion component, and the peace of 41 middle part of diffusion component is arranged in
Dress portion 40, the mounting portion 40 are connected and fixed with agitating shaft 152, and the edge of diffusion component 41 is provided with diffuser vane arranged in a uniform
42 to be taken turns, is provided with spreading grooves on diffusion vane 42, the spreading grooves include the diffusion sheet 43 tilted down along diffusion component, and
Diffusion hole 44 identical and center symmetric setting as 43 area of diffusion sheet, the horizontal direction of the diffusion sheet 43 and diffusion component 41
Angle be 30~45 °.
Among the above, the outlet side of the blower device connects one or two points of valves by solenoid valve, two points of valves piping connection all the way
To biological feedingization pond, another pipeline accesses to air inlet pipe by force (forcing) pump.
Among the above, the level-one slaking apparatus is identical with the structure of second level slaking apparatus, includes closed shell, setting
Agitating device inside housings, and the heating device of setting on the inner wall of the housing, are arranged multiple digestion gas inside housings
Pipe.
Among the above, the bottom of the advection settling pit is provided with V-groove, and the gentle slope on V-groove two sides is used for will be biological
The preparatory sedimentation separation removal of massive sand in sewage.
Among the above, it is provided among the primary sedimentation tank and secondary settling tank to recessed sedimentation, sedimentation is to two sides in gentle slope
Shape.
The present invention can provide good environment to the microorganism in biochemical aeration tank by aeration tank, and water flow can pass through company
It is connected to the horizontal elevator pump being arranged at water inlet pipe, horizontal elevator pump rapidly conveys biological sewage into Liqiud-gas mixing device, into
Tracheae guidance air enters Liqiud-gas mixing device and in conjunction with water flow, is finally discharged by diffuser, biological sewage is promoted by level
The water flow generated is pumped when entering Liqiud-gas mixing device, speed can change, and form high-velocity flow, while filling in gas-liquid mixed
Interior formation negative pressure is set, so that the air inlet pipe on diffuser sucks air, air can form liquid gas mixed flow in conjunction with water flow, finally
High speed is spouting, wherein a large amount of bubble can be carried secretly, be vortexed stirring in the waters of larger area and depth, completes aeration.
The present invention can remove deliquescent in biological sewage and colloidal organic dirt by three-level biochemical processing process
Contaminate object；
Before entering biochemical treatment, the present invention is provided with middle barrier, thin barrier, horizontal-flow grit chamber and primary sedimentation tank, can
With effectively by after suspended solids, including the removal of sinker, grease, dross, it not will lead to the stifled of backend process processing pipeline
Plug.
Embodiment 1
The present invention also provides a kind of sewage water treatment methods, based on biological wastewater treatment systems described above, including such as
Lower step:
A: biological sewage enters overflow well by water receiving pipe, and overflow well is stored mainly as sewage, prevents sewage disposal process
The overflow of middle sewage；
B: by overflow well by the first elevator pump and Pipeline transport to the middle grid of overflow well rear end, grid carries out thick in
After scraping the biggish suspended solids of mud removal；
C: by winding shaft be delivered to fine fack carry out it is secondary scrape mud, after removing tiny suspended solids；
D: it is secondary scrape mud after, biochemical sewage enters to advection settling pit, and the bottom of advection settling pit is provided with V-groove, V
The gentle slope on type groove two sides is used to remove the massive sand in biological sewage by the sedimentation of V-groove bottom and preparatory sedimentation separation
It removes, wherein partial size is greater than 0.2mm in main removal sewage, and density is greater than 2.65t/ cubic metres of sand grains；It is arranged 1 in bottom of pond
Sand bin, under run in sandpipe, setting flow velocity is 0.15m/s, and the residence time should be greater than 30 seconds, and sand setting moisture content is 60%, bulk density
1.5t/m3 is strike-off using machinery, gravity or hydroelevator sediment outflow；
E: after preparatory sedimentation separation removes massive sand, biological sewage enters primary sedimentation tank, by the sludge in biological sewage
It is heavy early decline, and the sludge of sedimentation is delivered to sludge concentration tank through mud elevator pump by primary sedimentation tank bottom, and to make to become a mandarin, sewage is equal
Even and stable enters sedimentation basin, and inhalant region should have rectification baffle plate, and rectification baffle plate is higher by water water surface 0.1m, and the submergence of baffle is deep
Degree should be no less than 0.25m, generally use 0.5m, rectification baffle plate is away from water inlet 0.5m；
F: the biological sewage after preliminary sedimentation enters comprehensive biochemistry pool, in the comprehensive biochemistry pool step, comprising as follows
Specific steps:
F1: make the organic matter in biological sewage that hydrolysis, acidification and methanation, removal occur using anaerobic bacteria by anaerobic pond
Organic matter in waste water keeps the anaerobic pond pH value that should maintain between 6.5 in the whole process, temperature between 35 DEG C,
Its removal efficiency: SS is in 85% or so, COD in 80% or so, BOD 70% or so；In the F1 stage, setting in the anaerobic pond
There is the first agitating device, the first agitating device includes the motor control room that bottom of pond is arranged in, and setting is stirred motor control is indoor
Motor is mixed, stirring motor and bottom of pond are provided with sealing mechanism, shaft coupling are provided on stirring motor, is provided on the shaft coupling
Agitating shaft is provided with several successively oppositely arranged stirring blades on agitating shaft, and the stirring blade includes diffusion component, if
The mounting portion in diffusion component middle part is set, which is connected and fixed with agitating shaft, and the edge of diffusion component is provided with row
Uniform diffusion vane is arranged, spreading grooves are provided on diffusion vane, the spreading grooves include the expansion tilted down along diffusion component
Discrete piece, and diffusion hole identical and center symmetric setting as diffusion sheet area, the level side of the diffusion sheet and diffusion component
To angle be 30~45 °；
F2: biological feedingization pond removes deliquescent in biological sewage and colloidal organic pollutant again,
F3: for biochemical aeration tank by measurement dissolved oxygen content, control blower device is by pipeline and is arranged in biochemical aeration
The disperser of pond side by biological sewage bubble disperse escape, oxygen is dissolved in water in gas-liquid interface, it is secondary will be molten
Solution property and colloidal organic pollutant removal, wherein water flow can by be connected at water inlet pipe be arranged horizontal elevator pump,
Horizontal elevator pump rapidly conveys biological sewage into Liqiud-gas mixing device, and air inlet pipe guidance air enters Liqiud-gas mixing device simultaneously
It in conjunction with water flow, is finally discharged by diffuser, the water flow that biological sewage is generated by horizontal elevator pump is entering Liqiud-gas mixing device
When, speed can change, form high-velocity flow, while forming negative pressure in Liqiud-gas mixing device so that on diffuser into
Tracheae sucks air, and air can form liquid gas mixed flow in conjunction with water flow, and last high speed is spouting, wherein can carry secretly a large amount of
Bubble, be vortexed stirring in the waters of larger area and depth, completes aeration；In the F3 stage, is provided in biochemical aeration tank
Two agitating devices, the second agitating device include the motor control room that bottom of pond is arranged in, and setting is in the indoor stirring electricity of motor control
Machine, stirring motor and bottom of pond are provided with sealing mechanism, and shaft coupling is provided on stirring motor, stirring is provided on the shaft coupling
Axis is provided with several successively oppositely arranged stirring blades on agitating shaft, and the stirring blade includes diffusion component, and setting exists
The mounting portion of diffusion component middle part, the mounting portion are connected and fixed with agitating shaft, and it is equal that the edge of diffusion component is provided with arrangement
Even diffusion vane is provided with spreading grooves on diffusion vane, and the spreading grooves include the diffusion sheet tilted down along diffusion component,
And diffusion hole identical and center symmetric setting as diffusion sheet area, the angle of the horizontal direction of the diffusion sheet and diffusion component
Degree is 30~45 °；
In the F3 stage, dissolved oxygen meter 153 is provided on agitating shaft for molten in the real time measure biochemical aeration tank
Oxygen content is solved, the air blasted is adjusted according to dissolved oxygen content；
G: entering secondary settling tank after comprehensive biochemistry pool processing, secondary settling tank again becomes silted up the sewage for removing organic matter
Mud sedimentation, to make to become a mandarin, sewage uniformly enters sedimentation basin with stable, and inhalant region should have rectification baffle plate, and rectification baffle plate is higher by water
The submergence of water surface 0.05m, baffle should be no less than 0.15m, generally use 0.2m, rectification baffle plate is away from water inlet 0.2m；
H: the rear end of secondary settling tank is disinfecting tank, and disinfecting tank removes the pathogenic micro-organism in water body using liquid chlorine,
Then clear water is through piping outlet, wherein liquid chlorine can be substituted with NaClO, CaClO；
I: sludge concentration tank is delivered to level-one slaking apparatus by conveyer belt after sludge is concentrated and second level digestion fills
Set, by aerobic-anaerobic microbe in level-one slaking apparatus and second level slaking apparatus and obligate anaerobe degrade in sludge it is organic at
Point, it is then suppressed and is transported outward by cake-making machine.
Embodiment 2
The present invention also provides a kind of sewage water treatment methods, based on biological wastewater treatment systems described above, including such as
Lower step:
A: biological sewage enters overflow well by water receiving pipe, and overflow well is stored mainly as sewage, prevents sewage disposal process
The overflow of middle sewage；
B: by overflow well by the first elevator pump and Pipeline transport to the middle grid of overflow well rear end, grid carries out thick in
After scraping the biggish suspended solids of mud removal；
C: by winding shaft be delivered to fine fack carry out it is secondary scrape mud, after removing tiny suspended solids；
D: it is secondary scrape mud after, biochemical sewage enters to advection settling pit, and the bottom of advection settling pit is provided with V-groove, V
The gentle slope on type groove two sides is used to remove the massive sand in biological sewage by the sedimentation of V-groove bottom and preparatory sedimentation separation
It removes, wherein partial size is greater than 0.2mm in main removal sewage, and density is greater than 2.65t/ cubic metres of sand grains；It is arranged 1~2 in bottom of pond
A sand bin, under run in sandpipe, setting flow velocity is 0.3m/s, and the residence time should be greater than 30 seconds, and sand setting moisture content is 60%, bulk density
1.5t/m3 is strike-off using machinery, gravity or hydroelevator sediment outflow；
E: after preparatory sedimentation separation removes massive sand, biological sewage enters primary sedimentation tank, by the sludge in biological sewage
It is heavy early decline, and the sludge of sedimentation is delivered to sludge concentration tank through mud elevator pump by primary sedimentation tank bottom, and to make to become a mandarin, sewage is equal
Even to enter sedimentation basin with stable, inhalant region should have rectification baffle plate, and rectification baffle plate is higher by water water surface 0.15m, the submergence of baffle
Depth should be no less than 0.25m, generally use 1.0m, rectification baffle plate is away from water inlet 1.0m；
F: the biological sewage after preliminary sedimentation enters comprehensive biochemistry pool, in the comprehensive biochemistry pool step, comprising as follows
Specific steps:
F1: make the organic matter in biological sewage that hydrolysis, acidification and methanation, removal occur using anaerobic bacteria by anaerobic pond
Organic matter in waste water keeps the anaerobic pond pH value that should maintain between 7.8 in the whole process, temperature between 40 DEG C,
Its removal efficiency: SS is in 85% or so, COD in 80% or so, BOD 70% or so；In the F1 stage, setting in the anaerobic pond
There is the first agitating device, the first agitating device includes the motor control room that bottom of pond is arranged in, and setting is stirred motor control is indoor
Motor is mixed, stirring motor and bottom of pond are provided with sealing mechanism, shaft coupling are provided on stirring motor, is provided on the shaft coupling
Agitating shaft is provided with several successively oppositely arranged stirring blades on agitating shaft, and the stirring blade includes diffusion component, if
The mounting portion in diffusion component middle part is set, which is connected and fixed with agitating shaft, and the edge of diffusion component is provided with row
Uniform diffusion vane is arranged, spreading grooves are provided on diffusion vane, the spreading grooves include the expansion tilted down along diffusion component
Discrete piece, and diffusion hole identical and center symmetric setting as diffusion sheet area, the level side of the diffusion sheet and diffusion component
To angle be 30~45 °；
F2: biological feedingization pond removes deliquescent in biological sewage and colloidal organic pollutant again,
F3: for biochemical aeration tank by measurement dissolved oxygen content, control blower device is by pipeline and is arranged in biochemical aeration
The disperser of pond side by biological sewage bubble disperse escape, oxygen is dissolved in water in gas-liquid interface, it is secondary will be molten
Solution property and colloidal organic pollutant removal, wherein water flow can by be connected at water inlet pipe be arranged horizontal elevator pump,
Horizontal elevator pump rapidly conveys biological sewage into Liqiud-gas mixing device, and air inlet pipe guidance air enters Liqiud-gas mixing device simultaneously
It in conjunction with water flow, is finally discharged by diffuser, the water flow that biological sewage is generated by horizontal elevator pump is entering Liqiud-gas mixing device
When, speed can change, form high-velocity flow, while forming negative pressure in Liqiud-gas mixing device so that on diffuser into
Tracheae sucks air, and air can form liquid gas mixed flow in conjunction with water flow, and last high speed is spouting, wherein can carry secretly a large amount of
Bubble, be vortexed stirring in the waters of larger area and depth, completes aeration；In the F3 stage, is provided in biochemical aeration tank
Two agitating devices, the second agitating device include the motor control room that bottom of pond is arranged in, and setting is in the indoor stirring electricity of motor control
Machine, stirring motor and bottom of pond are provided with sealing mechanism, and shaft coupling is provided on stirring motor, stirring is provided on the shaft coupling
Axis is provided with several successively oppositely arranged stirring blades on agitating shaft, and the stirring blade includes diffusion component, and setting exists
The mounting portion of diffusion component middle part, the mounting portion are connected and fixed with agitating shaft, and it is equal that the edge of diffusion component is provided with arrangement
Even diffusion vane is provided with spreading grooves on diffusion vane, and the spreading grooves include the diffusion sheet tilted down along diffusion component,
And diffusion hole identical and center symmetric setting as diffusion sheet area, the angle of the horizontal direction of the diffusion sheet and diffusion component
Degree is 30~45 °；
G: entering secondary settling tank after comprehensive biochemistry pool processing, secondary settling tank again becomes silted up the sewage for removing organic matter
Mud sedimentation, to make to become a mandarin, sewage uniformly enters sedimentation basin with stable, and inhalant region should have rectification baffle plate, and rectification baffle plate is higher by water
The submergence of water surface 0.10m, baffle should be no less than 0.15m, generally use 0.5m, rectification baffle plate is away from water inlet 0.5m；
H: the rear end of secondary settling tank is disinfecting tank, and disinfecting tank removes the pathogenic micro-organism in water body using liquid chlorine,
Then clear water is through piping outlet, wherein liquid chlorine can be substituted with NaClO, CaClO；
I: sludge concentration tank is delivered to level-one slaking apparatus by conveyer belt after sludge is concentrated and second level digestion fills
Set, by aerobic-anaerobic microbe in level-one slaking apparatus and second level slaking apparatus and obligate anaerobe degrade in sludge it is organic at
Point, it is then suppressed and is transported outward by cake-making machine.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (8)
1. biological wastewater treatment systems, which is characterized in that including overflow well, middle grid, inlet pumping station be defeated, winding shaft, fine fack,
Advection settling pit, primary sedimentation tank, comprehensive biochemistry pool, the comprehensive biochemistry pool includes anaerobic pond, biological feedingization pond and biochemistry
Aeration tank, the biochemical aeration tank rear end be secondary settling tank, the bottom of secondary settling tank passes through mud by secondary mud elevator pump
Reflux silt basin is delivered to sludge concentration tank, and the rear end of secondary settling tank is disinfecting tank, and the sludge concentration tank carries out sludge
It is delivered to level-one slaking apparatus and second level slaking apparatus by conveyer belt after concentration, the first stirring dress is provided in the anaerobic pond
It sets, the biochemical aeration tank includes the disperser for being arranged at four orientation of biochemical aeration tank inner wall, and is arranged in life
Change and the second agitating device is set in aeration tank, the disperser includes the diffuser being arranged in inside biochemical aeration tank, the expansion
Separate tube flare structure, diffuser connect Liqiud-gas mixing device, the upper end of Liqiud-gas mixing device are provided with diffusion vane, institute
It states diffusion vane to be driven by Diffusion fan, the bottom of Liqiud-gas mixing device is provided with water inlet pipe and Liqiud-gas mixing device exists
The nozzle of matching diffuser is provided at diffuser rear end, the top of nozzle is connect with air inlet pipe；Water flow can by be connected into
The horizontal elevator pump being arranged at water pipe, horizontal elevator pump rapidly convey biological sewage into Liqiud-gas mixing device, and air inlet pipe is drawn
It leads air and enters Liqiud-gas mixing device and in conjunction with water flow, be finally discharged by diffuser, biological sewage is generated by horizontal elevator pump
Water flow when entering Liqiud-gas mixing device, speed can change, and form high-velocity flow, while the shape in Liqiud-gas mixing device
At negative pressure, so that the air inlet pipe on diffuser sucks air, air can form liquid gas mixed flow in conjunction with water flow, and last high speed is sprayed
It penetrates, wherein a large amount of bubble can be carried secretly, be vortexed stirring in the waters of larger area and depth, completes aeration.
2. biological wastewater treatment systems according to claim 1, which is characterized in that the front end of the overflow well passes through water receiving
Pipeline introduces biological sewage, by overflow well by the middle grid of the first elevator pump and Pipeline transport to overflow well rear end, the lattice in
Grid slightly scrape remove biggish solids after mud after be delivered in winding shaft using inlet pumping station, be delivered to carefully by winding shaft
Grid progress is secondary to scrape mud, enters advection settling pit after removing tiny solids, advection settling pit will be big in biological sewage
And the sand preparatory sedimentation separation removal of weight, primary sedimentation tank is slowly then flowed to by advection settling pit, by the sludge in biological sewage into
It is heavy that row early declines, and the sludge of sedimentation is delivered to sludge concentration tank through mud elevator pump by primary sedimentation tank bottom, the biology after preliminary sedimentation
Sewage enters comprehensive biochemistry pool, and the comprehensive biochemistry pool includes anaerobic pond, biological feedingization pond and biochemical aeration tank, described
Anaerobic pond makes the organic matter in biological sewage that hydrolysis, acidification and methanation occur using anaerobic bacteria, removes the organic matter in waste water,
Biological feedingization pond removes deliquescent in biological sewage and colloidal organic pollutant, the biochemical aeration again
Pond will be given birth to by pipeline with the disperser that biochemical aeration tank side is arranged in by measurement dissolved oxygen content, control blower device
Bubble disperse evolution in object sewage, dissolves in oxygen in water in gas-liquid interface, it is secondary will deliquescent and colloidal it is organic
Pollutant removal, the rear end of the biochemical aeration tank are secondary settling tanks, and the secondary settling tank again carries out the sewage for removing organic matter
Mud is delivered to sludge concentration tank by the silt basin that flows back by secondary mud elevator pump by the bottom of silt settling, secondary settling tank,
The rear end of secondary settling tank is disinfecting tank, and disinfecting tank is using the pathogenic micro-organism in liquid chlorine removal water body, and then clear water passes through
Piping outlet, the sludge concentration tank is delivered to level-one slaking apparatus by conveyer belt after sludge is concentrated and second level disappears
Makeup is set, by having in aerobic-anaerobic microbe in level-one slaking apparatus and second level slaking apparatus and obligate anaerobe degradation sludge
Then machine ingredient is suppressed by cake-making machine and is transported outward.
3. biological wastewater treatment systems according to claim 1, which is characterized in that the outlet side of the blower device passes through
Solenoid valve connects one or two points of valves, and two points of valves all the way access by force (forcing) pump by piping connection to biological feedingization pond, another pipeline
To air inlet pipe.
4. biological wastewater treatment systems according to claim 1, which is characterized in that the level-one slaking apparatus and second level disappear
It is identical to disguise the structure set, includes closed shell, agitating device inside housings is set, and setting is on the inner wall of the housing
Heating device, multiple digestion tracheaes inside housings are set.
5. biological wastewater treatment systems according to claim 1, which is characterized in that the bottom of the advection settling pit is arranged
There is V-groove, the gentle slope on V-groove two sides is used to remove the preparatory sedimentation separation of massive sand in biological sewage.
6. biological wastewater treatment systems according to claim 1, which is characterized in that set among the primary sedimentation tank and secondary settling tank
It is equipped with to recessed sedimentation, sedimentation is to two sides in gentle slope shape.
7. biological wastewater treatment systems according to claim 1, which is characterized in that first agitating device and second stirs
The structure for mixing device is identical, includes the motor control room that bottom of pond is arranged in, is arranged in the indoor stirring motor of motor control, stirs
It mixes motor and bottom of pond is provided with sealing mechanism, shaft coupling is provided on stirring motor, is provided with agitating shaft on the shaft coupling,
Several successively oppositely arranged stirring blades are provided on agitating shaft, the stirring blade includes diffusion component, and setting is being spread
The mounting portion of component middle part, the mounting portion are connected and fixed with agitating shaft, are provided at the edge of diffusion component arranged in a uniform
Diffusion vane is provided with spreading grooves on diffusion vane, and the spreading grooves include the diffusion sheet tilted down along diffusion component, and
The angle of the horizontal direction of diffusion hole identical and center symmetric setting as diffusion sheet area, the diffusion sheet and diffusion component is
30~45 °.
8. sewage water treatment method, based on the biological wastewater treatment systems described in claim 1 to 7, which is characterized in that including as follows
Step:
A: biological sewage enters overflow well by water receiving pipe, and overflow well is stored mainly as sewage, prevents dirty in sewage disposal process
The overflow of water；
B: by overflow well by the first elevator pump and Pipeline transport to the middle grid of overflow well rear end, grid carries out slightly scraping mud in
After removing biggish suspended solids, including sinker, grease, dross；
C: by winding shaft be delivered to fine fack carry out it is secondary scrape mud, after removing tiny suspended solids, including sinker, oil
Rouge, dross；
D: it is secondary scrape mud after, biochemical sewage enters to advection settling pit, and the bottom of advection settling pit is provided with V-groove, V-type ditch
The gentle slope on slot two sides is used to remove the massive sand in biological sewage by the sedimentation of V-groove bottom and preparatory sedimentation separation,
Wherein, mainly partial size is greater than 0.2mm in removal sewage, and density is greater than 2.65t/ cubic metres of sand grains；It is arranged 1~2 in bottom of pond
Sand bin, under run in sandpipe, setting flow velocity is 0.15~0.3m/s, and the residence time should be greater than 30 seconds, and sand setting moisture content is 60%,
Bulk density 1.5t/m3, is strike-off using machinery, gravity or hydroelevator sediment outflow；
E: after preparatory sedimentation separation removes massive sand, biological sewage enters primary sedimentation tank, and the sludge in biological sewage is carried out
It is heavy to early decline, and the sludge of sedimentation is delivered to sludge concentration tank through mud elevator pump by primary sedimentation tank bottom, for make to become a mandarin sewage uniformly with
Stable enters sedimentation basin, and inhalant region should have rectification baffle plate, and rectification baffle plate is higher by water 0.1~0.15m of the water surface, the submergence of baffle
Depth should be no less than 0.25m, and generally with 0.5~1.0m, rectification baffle plate is away from 0.5~1.0m of water inlet；
F: the biological sewage after preliminary sedimentation enters comprehensive biochemistry pool, in the comprehensive biochemistry pool step, includes following tool
Body step:
F1: make the organic matter in biological sewage that hydrolysis, acidification and methanation occur using anaerobic bacteria by anaerobic pond, remove waste water
In organic matter keep the anaerobic pond pH value that should maintain between 6.5~7.8, temperature is at 35~40 DEG C in the whole process
Between, removal efficiency: SS is in 85% or so, COD in 80% or so, BOD 70% or so；In the F1 stage, the anaerobic pond
It is inside provided with the first agitating device, the first agitating device includes the motor control room that bottom of pond is arranged in, and is arranged in motor control room
Interior stirring motor, stirring motor and bottom of pond are provided with sealing mechanism, shaft coupling are provided on stirring motor, on the shaft coupling
It is provided with agitating shaft, several successively oppositely arranged stirring blades are provided on agitating shaft, the stirring blade includes diffusion
The mounting portion of diffusion component middle part is arranged in component, which is connected and fixed with agitating shaft, sets at the edge of diffusion component
It is equipped with diffusion vane arranged in a uniform, spreading grooves are provided on diffusion vane, the spreading grooves include dipping down along diffusion component
Oblique diffusion sheet, and diffusion hole identical and center symmetric setting as diffusion sheet area, the diffusion sheet and diffusion component
The angle of horizontal direction is 30~45 °；
F2: biological feedingization pond removes deliquescent in biological sewage and colloidal organic pollutant again,
F3: for biochemical aeration tank by measurement dissolved oxygen content, control blower device is by pipeline and is arranged in biochemical aeration tank one
The disperser of side escapes the bubble disperse in biological sewage, and oxygen is dissolved in water in gas-liquid interface, secondary by dissolubility
And colloidal organic pollutant removal, wherein water flow can be horizontal by being connected to the horizontal elevator pump being arranged at water inlet pipe
Elevator pump rapidly conveys biological sewage into Liqiud-gas mixing device, and air inlet pipe guidance air enters Liqiud-gas mixing device and and water
Stream combines, and is finally discharged by diffuser, and the water flow that biological sewage is generated by horizontal elevator pump is when entering Liqiud-gas mixing device, speed
Degree can change, and high-velocity flow be formed, while negative pressure is formed in Liqiud-gas mixing device, so that the air inlet pipe on diffuser is inhaled
Entering air, air can form liquid gas mixed flow in conjunction with water flow, and last high speed is spouting, wherein a large amount of bubble can be carried secretly,
Be vortexed stirring in the waters of larger area and depth, completes aeration；
G: entering secondary settling tank after comprehensive biochemistry pool processing, secondary settling tank again sinks the sewage for removing organic matter progress mud
Drop, to make to become a mandarin, sewage uniformly enters sedimentation basin with stable, and inhalant region should have rectification baffle plate, and rectification baffle plate is higher by the water water surface
The submergence of 0.05~0.10m, baffle should be no less than 0.15m, generally with 0.2~0.5m, rectification baffle plate away from water inlet 0.2~
0.5m；
H: the rear end of secondary settling tank is disinfecting tank, and disinfecting tank is using the pathogenic micro-organism in liquid chlorine removal water body, then
Clear water is through piping outlet, wherein liquid chlorine can be substituted with NaClO, CaClO；
I: sludge concentration tank by conveyer belt is delivered to level-one slaking apparatus and second level slaking apparatus after sludge is concentrated, and leads to
Organic principle in aerobic-anaerobic microbe and obligate anaerobe degradation sludge is crossed in level-one slaking apparatus and second level slaking apparatus, so
It is suppressed and is transported outward by cake-making machine afterwards.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114956448A (en) * | 2022-04-26 | 2022-08-30 | 浙江恒加环境工程有限公司 | Sludge cleaning device and industrial sewage regeneration treatment system |
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Application publication date: 20190219 |