CN104743742B - A kind of chemi-mechanical pulp Waste Water Treatment - Google Patents
A kind of chemi-mechanical pulp Waste Water Treatment Download PDFInfo
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- CN104743742B CN104743742B CN201510102375.3A CN201510102375A CN104743742B CN 104743742 B CN104743742 B CN 104743742B CN 201510102375 A CN201510102375 A CN 201510102375A CN 104743742 B CN104743742 B CN 104743742B
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Abstract
The present invention relates to a kind of chemi-mechanical pulp Waste Water Treatment, including wastewater equalization pond, strengthening flotation tank, ozone oxidation sedimentation tank, deflector type anoxia anaerobic reation pool, be thoroughly mixed Aerobic Pond, second pond and reflux formula BAF；Strengthening flotation tank sequentially consists of silt particle district, mixed zone and Disengagement zone；Ozone oxidation sedimentation tank includes that aeration mixed zone and settling zone, deflector type anoxia anaerobic reation pool include double oxygen section, anoxia section and the anaerobism section being separated into by deflection plate；It is thoroughly mixed Aerobic Pond and is provided with water inlet pipe, water distribution pyrometric cone and aeration regulator control system；Reflux formula BAF includes lower current area, ascending zone and mud district；Waste water is adjusted pond and enters strengthening flotation tank removal scum silica frost, then waste water enters ozone oxidation sedimentation tank, the oxidized decomposition of pollutant, enter back into deflector type anoxia anaerobic reation pool, be thoroughly mixed Aerobic Pond carry out anoxia, anaerobic and aerobic reaction, through reflux formula BAF reaction and filter after reuse.
Description
Technical field
The present invention relates to technical field of waste water processing, be specifically related to a kind of chemi-mechanical pulp Waste Water Treatment.
Background technology
Pollutant in chemical machinery pulp waste water are essentially from the Organic substance of dissolution, remaining change in production process
Learning medicine and the fiber fines of loss, complicated component, the biodegradability of waste water is poor, belongs to and is difficult to use biochemical process
Degradable industrial wastewater；Simultaneously containing substantial amounts of float in waste water；There is bigger colourity etc..Use
Chemical machinery pulp waste water is processed by traditional physical chemistry and biochemical processing process, is extremely difficult to efficiently,
The demands such as energy-conservation, low cost and environmental protection, therefore based on conventional physical chemistry and biochemical processing process,
The research and development of a new combined process improving or innovating have become as chemical machinery pulp waste water and process
The focus of research.
Summary of the invention
The technical problem to be solved in the present invention is: in order to solve the difficult problem during above-mentioned chemical machinery pulp waste water processes,
The present invention provides a kind of chemi-mechanical pulp Waste Water Treatment.
The technical solution adopted for the present invention to solve the technical problems is: a kind of chemical machinery pulp waste water processes system
System, including wastewater equalization pond, strengthening flotation tank, ozone oxidation sedimentation tank, deflector type anoxia anaerobic reation pool,
It is thoroughly mixed Aerobic Pond, second pond and reflux formula BAF；Described wastewater equalization pond, strengthening air supporting
Pond, ozone oxidation sedimentation tank, deflector type anoxia anaerobic reation pool, it is thoroughly mixed Aerobic Pond, second pond and anti-
Streaming BAF is sequentially communicated.
Described wastewater equalization pond includes water inlet pipe and outlet pipe, for regulating the water quality of chemical machinery pulp waste water
And the water yield.
Described strengthening flotation tank includes water inlet pipe and the outlet pipe of water, described strengthening after discharging process
Flotation tank sequentially consists of silt particle district, mixed zone and Disengagement zone；Described Disengagement zone include gathering ground and
It is positioned at Nei Jizha district, gathering ground；It is provided with the first exposure between silt particle district and the mixed zone of described strengthening flotation tank
Gas dish, the first described aeration plate be arranged over water distribution branch pipe, described water distribution branch pipe connects water inlet pipe,
The first described aeration plate connects the blower fan having outside strengthening flotation tank by aeration tube；Set in described Disengagement zone
Have three phase separator, described three phase separator to include deflector to coordinate with deflector with being positioned at below deflector
The triangle guide ring used, described triangle guide ring is arranged on the inwall of strengthening flotation tank, and described leads
The top of stream plate is identical with the shape of Disengagement zone, and the bottom of described deflector is horn-like, described water conservancy diversion
The internal diameter of the bottom of plate is more than the internal diameter of triangle guide ring；The top of described Disengagement zone outer wall is provided with overfalling weir,
Described overfalling weir is connected with outlet pipe；Described Ji Zhaqu is laid with scum board and scum trough；Waste water under
During toward overflow, water enters the bottom of deflector together with scum silica frost by triangle guide ring, and scum silica frost continues toward enterprising
Ru Jizha district, water is by the entrance gathering ground, gap between deflector and triangle guide ring；In order to waste water processes
Effect more preferable, described water distribution branch pipe is arranged to concentric circles or cross shape, and water distribution branch pipe has
Horizontal radiation outlet；Further, described aeration plate is the pore type aeration plate being evenly arranged with micropore；
Due to water, sedimentary density difference, realize separating under three phase separator effect；After discharging process
Precipitate, be provided with sediment discharge valve bottom described strengthening flotation tank.
The outlet pipe of described strengthening flotation tank connects with the water inlet pipe of ozone oxidation sedimentation tank.
Described ozone oxidation sedimentation tank includes that aeration mixed zone and settling zone, aeration are provided with bottom mixed zone
Ozonation aerated dish, described ozonation aerated dish be arranged over water distribution branch pipe, described water distribution branch pipe connect into
Water pipe, described ozonation aerated dish is connected by aeration tube the blower fan outside ozone oxidation sedimentation tank, and blower fan leads to
Piping connection ozonator；Being provided with baffle plate in described settling zone, this baffle plate is formed with the inwall of sedimentation tank
Enter the waste water runner of settling zone as waste water, the exit of settling zone is provided with three phase separator, settling zone
Outlet top is provided with overfalling weir, the tapered structure of settling zone bottom design, is provided with spoil disposal bottom settling zone
Valve.
Described deflector type anoxia anaerobic reation pool includes double oxygen section, the anoxia section being separated into by the first deflection plate
With anaerobism section, described double oxygen section head end is provided with the water inlet pipe for feeding waste water, hold concurrently oxygen section end and anoxia section
Head end connects, and anoxia section end connects with anaerobism section head end, described anoxia section and anaerobism section water inlet side baffling
The bottom of plate is provided with the corner of 45 degree, the percussion produced during to avoid current to enter, thus plays slow
Bath stream and the effect of water distribution uniformity；Anaerobism section end is provided with three phase separator and overfalling weir, and overfalling weir connects
Outlet pipe；Described double oxygen section, anoxia section and the tapered structure of anaerobism section bottom design, pyramidal structure connects dirt
Mud drain valve；The double oxygen section of described deflector type anoxia anaerobic reation pool, anoxia section become with anaerobism section upper cover design
Conical structure, conical structure top is designed with independent methane waste product discharge.
Described be thoroughly mixed Aerobic Pond in middle and lower part be provided with water inlet pipe, described water inlet pipe bottom is provided with water distribution three
Pyramid；Described water distribution pyrometric cone bottom is provided with aeration regulator control system, and described aeration regulator control system includes the second exposure
Gas dish, aerator and dissolved oxygen sensing regulation device；Further, the second described aeration plate is to be uniformly arranged
There is the pore type aeration plate of micropore.Described second aeration plate connects aerator by aeration tube, and aerator is arranged
Be thoroughly mixed outside Aerobic Pond, be thoroughly mixed the top of Aerobic Pond, waste water underwater arrange dissolved oxygen sensing adjust
Control device, described dissolved oxygen sensing regulation device is according to oxygen capacity regulation and control aerator work；Described it is thoroughly mixed
The exit of Aerobic Pond is laid with downflow weir.
The described outlet pipe being thoroughly mixed Aerobic Pond connects second pond, is provided with sludge recirculation system bottom second pond,
A part of sludge reflux is to deflector type anoxia anaerobic reation pool and is thoroughly mixed Aerobic Pond.
Water after sedimentation in secondary sedimentation tank process enters the water inlet pipe of reflux formula BAF through downflow weir.
Described reflux formula BAF middle and upper part is conical structure for cylindrical, bottom, including dirty
District, ascending zone and mud district；Described lower current area is positioned in the cylindrical structural of reflux formula BAF
Portion, for cylindrical structural, lower current area top is provided with water inlet pipe and water distributor, is provided with filler in the middle part of lower current area,
Lower current area bottom is provided with aeration tube, and the bottom of described lower current area is provided with the second deflection plate, the second described baffling
The vertical section of plate is horn-like；Described ascending zone is positioned at the top of the periphery of lower current area, deflection plate, ascending zone
Middle part is provided with filler, and bottom is provided with aeration tube, and the exit on ascending zone top is provided with overfalling weir；Described mud
District is positioned at the bottom of the bottom of reflux formula BAF, lower current area and ascending zone, and the bottom in mud district sets
There is mud discharging valve.
A kind of method using above-mentioned chemi-mechanical pulp Waste Water Treatment to carry out waste water process, has following step
Rapid:
1. chemical machinery pulp waste water enters wastewater equalization pond regulating water quality and the water yield by water inlet pipe.
The most then waste water enters the middle and lower part of strengthening flotation tank Disengagement zone by water inlet pipe；It is positioned at strengthening flotation tank
Aeration plate below water inlet pipe produces a large amount of tiny bubbles makes the solids in waste water produce friction, removes solid
Other pollutant on thing；The tiny bubble that aeration plate produces and supernatant adhere to form mixture and make at buoyancy
Using lower rising, under the effect of strengthening flotation tank Disengagement zone three phase separator, mixture rises to Ji Zhaqu,
Under the effect of scum board, scum silica frost enters scum trough cleaned outward transport；Precipitate under gravity under
Sink to strengthen the silt particle district of flotation tank bottom, discharged by the sediment discharge valve bottom strengthening flotation tank；Point
Water after processing enters strengthening flotation tank gathering ground under strengthening flotation tank three-phase separation area deflector effect,
The water inlet pipe of ozone oxidation sedimentation tank is connected by overfalling weir, outlet pipe and connecting tube.
3. waste water enters ozone oxidation sedimentation tank by water inlet pipe and the water distribution branch pipe of ozone oxidation sedimentation tank
Middle and lower part；It is positioned at a large amount of tiny bubbles of generation of the ozonation aerated dish below ozone oxidation sedimentation tank water distribution branch pipe to make
Solids in waste water rubs further, the macromolecular substances in waste water is oxidized to be prone to absorb and inhale simultaneously
Attached small-molecule substance, the waste water after oxidation Decomposition enters the waste water runner of settling zone, the three-phase separate of settling zone
Mud-water separation is realized from device；Mud sinks to the bottom of ozone oxidation sedimentation tank settling zone under gravity,
Discharged by the mud valve of bottom；Waste water connects deflector type anoxia by overfalling weir, outlet pipe and connecting tube to be detested
The water inlet pipe of oxygen reaction tank.
4. waste water by deflector type anoxia anaerobic reation pool hold concurrently oxygen section water inlet pipe enter deflector type anoxia anaerobism anti-
The bottom of Ying Chi；Waste water enters deflector type anoxia anaerobic reation pool tailing edge deflection plate and advances up and down, passes sequentially through
The Sludge Bed of each reative cell of oxygen section, anoxia section and the anaerobism section held concurrently, the mud in reaction tank is along with waste water
Up and down flowing and biogas rise effect and move, the barrier effect of deflection plate and the settlement action of mud self
The flow velocity making again mud reduces, and the most substantial amounts of mud is all trapped within reaction tank, the micro-life in reaction tank
Thing is fully contacted with the Organic substance in waste water.The heterotrophic bacteria of the amphimicrobe of oxygen section, anoxia section and the anaerobism section held concurrently will
Fiber, carbohydrate and dissolved organic matter in waste water are hydrolyzed to organic acid, make larger molecular organics divide
Solving is small organic molecule, and insoluble Organic substance changes into dissolved organic matter.
5. the three phase separator that the waste water after anaerobic reaction is provided with at anaerobism section end realizes mud, water, methane gas
Separation, mud sinks to the bottom of deflector type anoxia anaerobic reation pool, unnecessary dirt under gravity
Mud is discharged by the mud discharging valve of bottom；The methane waste product that deflector type anoxia anaerobic reation pool produces is by anti-
Ying Chi top discharge collects discharge；Waste water after process has been connected with connecting tube by overfalling weir, outlet pipe
The full water inlet pipe mixing Aerobic Pond.
6. waste water enters the middle and lower part being thoroughly mixed Aerobic Pond by water inlet pipe, under the effect of water distribution pyrometric cone
Water distribution uniformity, described aeration plate is the pore type aeration plate being evenly arranged with micropore, produces substantial amounts of micro-gas
Bubble, described dissolved oxygen sensing regulation device is according to oxygen capacity regulation and control aerator work, it is ensured that be thoroughly mixed aerobic
Dissolved oxygen in water is more than 2mg/L, and the waste water after process is flowed out by downflow weir and outlet pipe.
7. the outlet pipe being thoroughly mixed Aerobic Pond connects the water distributor of second pond, the precipitating sludge of second pond one
Dividing sludge reflux to deflector type anoxia anaerobic reation pool and to be thoroughly mixed Aerobic Pond, a part is as excess sludge.
8. the water after sedimentation in secondary sedimentation tank processes enters reflux formula BAF through downflow weir.
9. waste water enters the lower current area of reflux formula BAF by water inlet pipe, water distributor, and aeration tube produces
Raw air and waste water cross generation biochemical reaction in filler, and waste water is filtered by filler simultaneously, waste water
By entering ascending zone after deflection plate, biochemical reaction occurring in filler, waste water is filtered by filler simultaneously,
The mud that lower current area and ascending zone produce sinks to mud district, is discharged by the mud discharging valve bottom mud district
Going out, the water after reflux formula BAF processes passes through reuse after overfalling weir entrance clear water reserviors.
10. ozone oxidation sedimentation tank, deflector type anoxia anaerobic reation pool, be thoroughly mixed Aerobic Pond, second pond and
Transport outward after the excess sludge dehydration that reflux formula BAF produces.
The invention has the beneficial effects as follows: present configuration is simple, and cost is relatively low, at chemical machinery pulp waste water
Reason has reasonable depth effect, convenient management.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of embodiment of the present invention strengthening flotation tank.
In Fig. 1: 1. strengthening flotation tank, 1-1. strengthens flotation tank water inlet pipe, 1-2. silt particle district, and 1-3. mixes
Closing district, 1-4. gathering ground, 1-5. Ji Zhaqu, 1-6. first aeration plate, 1-7. strengthens flotation tank water distribution branch pipe,
1-8. aerator and gas flowmeter, 1-9. strengthens flotation tank three phase separator, 1-10. overfalling weir, 1-11.
Scum board, 1-12. scum trough, 1-13. sediment discharge valve.
Fig. 2 is the structural representation of embodiment of the present invention ozone oxidation sedimentation tank.
In Fig. 2: 2. ozone oxidation sedimentation tank, 2-1. aeration mixed zone, 2-2. settling zone, 2-3. ozone
Aeration plate, 2-4. water distribution branch pipe, 2-5. water inlet pipe, 2-6. ozone aerator and gas flowmeter, 2-7. is smelly
Oxygen Generator, 2-8. baffle plate, 2-9. ozone oxidation sedimentation tank three phase separator, 2-10. ozone oxidation sedimentation tank
Overfalling weir, 2-11. mud valve.
Fig. 3 is the structural representation of embodiment of the present invention deflector type anoxia anaerobic reation pool.
In Fig. 3: 3. deflector type anoxia anaerobic reation pool, 3-1. the first deflection plate, 3-2. holds concurrently oxygen section, 3-3.
Anoxia section, 3-4. anaerobism section, 3-5. deflector type anoxia anaerobic reation pool water inlet pipe, 3-6. deflector type anoxia
Anaerobic reation pool three phase separator, 3-7. deflector type anoxia anaerobic reation pool overfalling weir, 3-8. mud discharging valve,
3-9. upper cover, 3-10. discharge.
Fig. 4 is the structural representation that the embodiment of the present invention is thoroughly mixed Aerobic Pond.
In Fig. 4: 4. be thoroughly mixed Aerobic Pond, 4-1. is thoroughly mixed Aerobic Pond water inlet pipe, 4-2. water distribution three
Pyramid, 4-3. aeration regulator control system, 4-4. is thoroughly mixed Aerobic Pond downflow weir.
Fig. 5 is the structural representation of embodiment of the present invention reflux formula BAF.
In Fig. 5: 5. reflux formula BAF, 5-1. lower current area, 5-2. ascending zone, 5-3. is dirty
Mud district, 5-4. reflux formula BAF water inlet pipe, 5-5. reflux formula BAF water distributor, 5-6.
Lower current area filler, 5-7. aeration tube, 5-8. the second deflection plate, 5-9. ascending zone filler, 5-10. is anti-
Streaming BAF overfalling weir, 5-11. mud discharging valve.
Fig. 6 is the process chart of the embodiment of the present invention.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the signal of simplification
Figure, illustrates the basic structure of the present invention the most in a schematic way, and therefore it only shows the structure relevant with the present invention
Become.
Embodiment
As shown in Fig. 1～Fig. 6, one chemi-mechanical pulp Waste Water Treatment of the present invention, including wastewater equalization pond,
Strengthen flotation tank 1, ozone oxidation sedimentation tank 2, deflector type anoxia anaerobic reation pool 3, be thoroughly mixed Aerobic Pond
4, second pond and reflux formula BAF 5；Described wastewater equalization pond, strengthening flotation tank 1, ozone oxygen
Change sedimentation tank 2, deflector type anoxia anaerobic reation pool 3, be thoroughly mixed Aerobic Pond 4, second pond and the exposure of reflux formula
Gas biofilter 5 is sequentially communicated.
Described wastewater equalization pond includes water inlet pipe and outlet pipe, for regulating the water quality of chemical machinery pulp waste water
And the water yield.
Described strengthening flotation tank 1 include water inlet pipe 1-1 and after discharging process the outlet pipe of water, described
Strengthening flotation tank sequentially consist of silt particle district 1-2, mixed zone 1-3 and Disengagement zone；Described Disengagement zone
Including gathering ground 1-4 and be positioned at Nei Jizha district, gathering ground 1-5；The silt particle district 1-2 of described strengthening flotation tank and
Be provided with the first aeration plate 1-6 between the 1-3 of mixed zone, the first described aeration plate be arranged over water distribution branch pipe
1-7, described water distribution branch pipe is connected water inlet pipe 1-1, the first described aeration plate 1-6 and is connected by aeration tube
There is the blower fan 1-8 outside strengthening flotation tank.Three phase separator 1-9, described three-phase it is provided with in described Disengagement zone
Separator 1-9 include deflector and be positioned at below deflector with deflector with the use of triangle guide ring, institute
The triangle guide ring stated is arranged on the inwall of strengthening flotation tank, the top of described deflector and Disengagement zone
Shape is identical, and the bottom of described deflector is horn-like, and the internal diameter of the bottom of described deflector is more than three
The internal diameter of angle guide ring；The top of described Disengagement zone outer wall is provided with overfalling weir 1-10, described overfalling weir 1-10
It is connected with outlet pipe；Described Ji Zha district 1-5 is laid with scum board 1-11 and scum trough 1-12；Waste water under
During toward overflow, water enters the bottom of deflector together with scum silica frost by triangle guide ring, and scum silica frost continues toward enterprising
Ru Jizha district 1-5, water is by entrance gathering ground, the gap 1-4 between deflector and triangle guide ring；In order to useless
The effect that water processes is more preferable, and described water distribution branch pipe 1-7 is arranged to concentric circles or cross shape, water distribution
There is on arm horizontal radiation outlet；Further, described aeration plate is the micropore being evenly arranged with micropore
Formula aeration plate；Due to water, sedimentary density difference, realize separating under three phase separator effect；In order to
Precipitate after discharge process, is provided with sediment discharge valve 1-13 bottom described strengthening flotation tank.
The outlet pipe of described strengthening flotation tank 1 connects with the water inlet pipe 2-5 of ozone oxidation sedimentation tank 2.
Described ozone oxidation sedimentation tank 2 includes aeration mixed zone 2-1 and settling zone 2-2, at the bottom of aeration mixed zone
Portion is provided with ozonation aerated dish 2-3, described ozonation aerated dish be arranged over water distribution branch pipe 2-4, described
Water distribution branch pipe 2-4 connects water inlet pipe 2-5, described ozonation aerated dish 2-3 has ozone oxygen by aeration tube connection
Change the blower fan outside sedimentation tank, blower and pipeline connection ozonator 2-7；It is provided with baffle plate in described settling zone
2-8, this baffle plate forms the waste water runner as waste water entrance settling zone, going out of settling zone with the inwall of sedimentation tank
Being provided with three phase separator 2-9 at Kou, the outlet top of settling zone is provided with overfalling weir 2-10, sets bottom settling zone
Count tapered structure, bottom settling zone, be provided with mud valve 2-11.
Double oxygen section 3-2 that described deflector type anoxia anaerobic reation pool 3 includes being separated into by the first deflection plate 3-1,
Anoxia section 3-3 and anaerobism section 3-4, described double oxygen section 3-2 head end is provided with the water inlet pipe 3-5 for feeding waste water,
Oxygen section 3-2 end of holding concurrently connects with anoxia section 3-3 head end, and anoxia section 3-3 end connects with anaerobism section 3-4 head end,
The bottom of described anoxia section 3-3 and anaerobism section 3-4 water inlet side deflection plate is provided with the corner of 45 degree, to avoid
The percussion produced when current enter, thus play buffering current and the effect of water distribution uniformity；Anaerobism section 3-4
End is provided with three phase separator 3-6 and overfalling weir 3-7, and overfalling weir 3-7 connects outlet pipe；Described double oxygen section 3-2,
Anoxia section 3-3 and the tapered structure of anaerobism section 3-4 bottom design, pyramidal structure connects mud discharging valve 3-8；Institute
The upper cover 3-9 of double oxygen section, anoxia section and the anaerobism section of stating deflector type anoxia anaerobic reation pool is designed to cone knot
Structure, conical structure top is designed with independent methane waste product discharge 3-10.
Described be thoroughly mixed Aerobic Pond 4 in middle and lower part be provided with water inlet pipe 4-1, described water inlet pipe 4-1 bottom sets
There is water distribution pyrometric cone 4-2；Described water distribution pyrometric cone 4-2 bottom is provided with aeration regulator control system 4-3, described aeration
Regulator control system 4-3 includes the second aeration plate, aerator and dissolved oxygen sensing regulation device；Further, described
The second aeration plate be the pore type aeration plate being evenly arranged with micropore.Described second aeration plate passes through aeration tube
Connecting aerator, aerator is arranged on and is thoroughly mixed outside Aerobic Pond, is thoroughly mixed the top of Aerobic Pond, waste water
Underwater arranges dissolved oxygen sensing regulation device, and described dissolved oxygen sensing regulation device is according to oxygen capacity regulation and control drum
Blower fan works；The described exit being thoroughly mixed Aerobic Pond is laid with downflow weir 4-4.
The described outlet pipe being thoroughly mixed Aerobic Pond 4 connects second pond, is provided with sludge reflux system bottom second pond
System, a part of sludge reflux is to deflector type anoxia anaerobic reation pool 3 and is thoroughly mixed in Aerobic Pond 4, one
It is divided into excess sludge.
Water after sedimentation in secondary sedimentation tank process enters the water inlet pipe 5-4 of reflux formula BAF through downflow weir.
The middle and upper part of described reflux formula BAF 5 is conical structure for cylindrical, bottom, including
Lower current area 5-1, ascending zone 5-2 and mud district 5-3；Described lower current area 5-1 is positioned at the filter of reflux formula aeration and biological
The middle part of the cylindrical structural in pond, for cylindrical structural, lower current area top is provided with water inlet pipe 5-4 and water distributor
5-5, is provided with filler 5-6 in the middle part of lower current area, lower current area bottom is provided with aeration tube 5-7, the end of described lower current area
Portion is provided with the second deflection plate 5-8, and the vertical section of the second described deflection plate 5-8 is horn-like；Described ascending zone
5-2 is positioned at the top of the periphery of lower current area 5-1, deflection plate, is provided with filler 5-9 in the middle part of ascending zone, and bottom sets
Aeration tube, the exit on ascending zone top is had to be provided with overfalling weir 5-10；Described mud district 5-3 is positioned at reflux formula
The bottom of the bottom of BAF, lower current area and ascending zone, the bottom in mud district is provided with mud discharging valve
5-11。
A kind of method using above-mentioned chemi-mechanical pulp Waste Water Treatment to carry out waste water process, has following step
Rapid:
1. chemical machinery pulp waste water enters wastewater equalization pond regulating water quality and the water yield by water inlet pipe.
The most then waste water enters the middle and lower part of strengthening flotation tank Disengagement zone by water inlet pipe 1-1；It is positioned at strengthening gas
Aeration plate 1-6 below the water inlet pipe of floating pond produces a large amount of tiny bubbles makes the solids in waste water produce friction,
Remove other pollutant on solids；The tiny bubble that aeration plate 1-6 produces and supernatant adhere to be formed and mix
Fit rising under buoyancy, under the effect of strengthening flotation tank three phase separator 1-9, mixture rises
To Ji Zha district 1-5, under the effect of scum board 1-11, scum silica frost enters scum trough 1-12 cleaned outward transport；
Precipitate sinks to strengthen the silt particle district 1-2 of flotation tank bottom under gravity, at the bottom of strengthening flotation tank
The sediment discharge valve 1-13 in portion discharges；Water after separating treatment is at strengthening flotation tank three-phase separation area deflector
Effect is lower enters strengthening flotation tank gathering ground 1-4, connects smelly by overfalling weir 1-10, outlet pipe and connecting tube
The water inlet pipe 2-5 of oxygen oxidization and sedimentation basin.
3. waste water is sunk by ozone oxidation sedimentation tank water inlet pipe 2-5 and water distribution branch pipe 2-4 entrance ozone oxidation
The middle and lower part in pond, shallow lake 2；It is positioned at the ozonation aerated dish 2-3 below ozone oxidation sedimentation tank water distribution branch pipe and produces big
Amount tiny bubble makes the solids in waste water rub further, the macromolecular substances in waste water is oxidized to simultaneously
Being prone to absorb and the small-molecule substance of absorption, the waste water after oxidation Decomposition enters the waste water runner of settling zone, heavy
The three phase separator 2-9 in shallow lake district realizes mud-water separation；Mud sinks to ozone oxidation under gravity and sinks
The bottom of pond, shallow lake settling zone 2-2, is discharged by the mud valve 2-11 of bottom；Waste water by overfalling weir 2-10,
Outlet pipe connects the water inlet pipe 3-5 of deflector type anoxia anaerobic reation pool with connecting tube.
4. waste water by deflector type anoxia anaerobic reation pool hold concurrently oxygen section water inlet pipe 3-5 enter deflector type anoxia detest
The bottom of oxygen reaction tank 3；Waste water enters deflector type anoxia anaerobic reation pool tailing edge deflection plate and advances up and down, depends on
The Sludge Bed of secondary each reative cell by double oxygen section 3-2, anoxia section 3-3 and anaerobism section 3-4, in reaction tank
Mud along with waste water up and down flowing and biogas rise effect and move, the barrier effect of deflection plate and dirt
The settlement action of mud self makes again the flow velocity of mud reduce, and the most substantial amounts of mud is all trapped within reaction tank,
Microorganism in reaction tank is fully contacted with the Organic substance in waste water.The double amphimicrobe of oxygen section 3-2, anoxia section
Fiber in waste water, carbohydrate and dissolved organic matter are hydrolyzed to by the heterotrophic bacteria of 3-3 and anaerobism section 3-4
Organic acid, makes larger molecular organics be decomposed into small organic molecule, and insoluble Organic substance changes into solubility
Organic substance.
5. the waste water after anaerobic reaction the three phase separator 3-6 that anaerobism section 3-4 end is provided with realize mud, water,
The separation of methane gas, mud sinks to the bottom of deflector type anoxia anaerobic reation pool under gravity, many
Remaining mud is discharged by the mud discharging valve 3-8 of bottom；The methane that deflector type anoxia anaerobic reation pool produces
Waste gas collects discharge by reaction tank top discharge 3-10；Waste water is by overfalling weir, outlet pipe and connecting tube
Connection is thoroughly mixed the water inlet pipe 4-1 of Aerobic Pond.
6. waste water enters the middle and lower part being thoroughly mixed Aerobic Pond 4 by water inlet pipe 4-1, at water distribution pyrometric cone 4-2
Effect under water distribution uniformity, described aeration plate produces substantial amounts of microbubble, described dissolved oxygen sensing regulation and control dress
Put according to oxygen capacity regulation and control aerator work, it is ensured that the dissolved oxygen being thoroughly mixed in aerobic water is more than 2mg/L,
Waste water after process is flowed out by downflow weir 4-4 and outlet pipe.
7. the outlet pipe being thoroughly mixed Aerobic Pond connects the water distributor of second pond, the precipitating sludge of second pond one
Dividing sludge reflux to deflector type anoxia anaerobic reation pool 3 and to be thoroughly mixed in Aerobic Pond 4, a part is as surplus
Remaining mud.
8. the water after sedimentation in secondary sedimentation tank processes enters reflux formula BAF through downflow weir.
9. waste water enters the lower current area of reflux formula BAF by water inlet pipe 5-4 and water distributor 5-5
Air and the waste water that 5-1, aeration tube 5-7 produce crosses generation biochemical reaction, simultaneously filler in filler 5-6
Waste water is filtered by 5-6, and waste water, by entering ascending zone 5-2 after deflection plate 5-8, is sent out in filler 5-9
Raw biochemical reaction, waste water is filtered by filler 5-9 simultaneously, and lower current area 5-1 and ascending zone 5-2 produces
Mud sinks to mud district 5-3, is emitted by the mud discharging valve 5-11 bottom mud district, reflux formula
Water after BAF processes passes through reuse after overfalling weir 5-10 entrance clear water reserviors.
10. ozone oxidation sedimentation tank 2, deflector type anoxia anaerobic reation pool 3, be thoroughly mixed Aerobic Pond 4, two and sink
Transport outward after the excess sludge dehydration that pond and reflux formula BAF 5 produce.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, related work
Personnel completely can be without departing from carrying out various change and amendment in the range of this invention technological thought.
The content that the technical scope of this invention is not limited in description, it is necessary to according to right
Determine its technical scope.
Claims (2)
1. a chemi-mechanical pulp Waste Water Treatment, it is characterised in that: include wastewater equalization pond, strengthening gas
Floating pond (1), ozone oxidation sedimentation tank (2), deflector type anoxia anaerobic reation pool (3), be thoroughly mixed aerobic
Pond (4), second pond and reflux formula BAF (5)；
Described regulating reservoir includes water inlet pipe and outlet pipe, for regulating water quality and the water of chemical machinery pulp waste water
Amount；
Described strengthening flotation tank (1) includes water inlet pipe (1-1) and for discharging the outlet pipe of water after process,
Described strengthening flotation tank sequentially consists of silt particle district (1-2), mixed zone (1-3) and Disengagement zone；Described
Disengagement zone include gathering ground (1-4) and be positioned at Nei Jizha district, gathering ground (1-5)；Described strengthening flotation tank
The first aeration plate (1-6) it is provided with between silt particle district (1-2) and mixed zone (1-3), the first described aeration plate
Being arranged over water distribution branch pipe (1-7), described water distribution branch pipe connects water inlet pipe (1-1), the first described aeration
Dish (1-6) connects the blower fan having outside strengthening flotation tank by aeration tube；It is provided with three phase separation in described Disengagement zone
Device (1-9), described three phase separator (1-9) includes deflector and coordinates with deflector with being positioned at below deflector
The triangle guide ring used, described triangle guide ring is arranged on the inwall of strengthening flotation tank, and described leads
The top of stream plate is identical with the shape of Disengagement zone, and the bottom of described deflector is horn-like, described water conservancy diversion
The internal diameter of the bottom of plate is more than the internal diameter of triangle guide ring；The top of described Disengagement zone outer wall is provided with overfalling weir
(1-10), described overfalling weir (1-10) is connected with outlet pipe；Described Ji Zhaqu (1-5) is laid with scum board
(1-11) with scum trough (1-12)；When waste water overflows from the bottom up, water is entered by triangle guide ring together with scum silica frost
Entering the bottom of deflector, scum silica frost continues up to enter Ji Zhaqu (1-5), and water is by deflector and triangle guide ring
Between entrance gathering ground, gap (1-4)；The effect processed for waste water is more preferable, described water distribution branch pipe (1-7)
It is arranged to concentric circles or cross shape, water distribution branch pipe has horizontal radiation outlet；Further, institute
The aeration plate stated is the pore type aeration plate being evenly arranged with micropore；Due to water, sedimentary density difference,
Realize separating under three phase separator effect；In order to discharge the precipitate after process, described strengthening flotation tank
Bottom is provided with sediment discharge valve (1-13)；
Described ozone oxidation sedimentation tank (2) includes aeration mixed zone (2-1) and settling zone (2-2), and aeration mixes
Be provided with ozonation aerated dish (2-3) bottom district, described ozonation aerated dish be arranged over water distribution branch pipe (2-4),
Described water distribution branch pipe (2-4) connects water inlet pipe (2-5), and described ozonation aerated dish (2-3) is by aeration tube even
It is connected to the blower fan outside ozone oxidation sedimentation tank, blower and pipeline connection ozonator (2-7)；Described precipitation
Being provided with baffle plate (2-8) in district, this baffle plate forms the waste water stream as waste water entrance settling zone with the inwall of sedimentation tank
Road, the exit of settling zone is provided with three phase separator (2-9), and the outlet top of settling zone is provided with overfalling weir
(2-10), the tapered structure of settling zone bottom design, bottom settling zone, it is provided with mud valve (2-11)；
Described deflector type anoxia anaerobic reation pool (3) includes by holding concurrently that the first deflection plate (3-1) is separated into
Oxygen section (3-2), anoxia section (3-3) and anaerobism section (3-4), described double oxygen section (3-2) head end is provided with use
In the water inlet pipe (3-5) of infeed waste water, oxygen section (3-2) end of holding concurrently connects with anoxia section (3-3) head end,
Anoxia section (3-3) end connects with anaerobism section (3-4) head end；Described anoxia section (3-3) and anaerobism section (3-4)
The bottom of water inlet side deflection plate be provided with the corner of 45 degree, the impact produced during to avoid current to enter work
With, thus play buffering current and the effect of water distribution uniformity；Anaerobism section (3-4) end is provided with three phase separator
(3-6) with overfalling weir (3-7), overfalling weir (3-7) connects outlet pipe；Described double oxygen section (3-2), lack
Oxygen section (3-3) and the tapered structure of anaerobism section (3-4) bottom design, pyramidal structure connects mud discharging valve
(3-8)；The upper cover (3-9) of double oxygen section, anoxia section and the anaerobism section of described deflector type anoxia anaerobic reation pool
Being designed to conical structure, conical structure top is designed with methane waste product discharge (3-10)；
Described Aerobic Pond (4) the interior middle and lower part that is thoroughly mixed arranges water inlet pipe (4-1), described water inlet pipe (4-1)
Bottom is provided with water distribution pyrometric cone (4-2)；Described water distribution pyrometric cone (4-2) bottom is provided with aeration regulator control system
(4-3), described aeration regulator control system (4-3) includes the second aeration plate, aerator and dissolved oxygen sensing regulation and control
Device；Further, the second described aeration plate is the pore type aeration plate being evenly arranged with micropore；Described
Second aeration plate connects aerator by aeration tube, and aerator is arranged on and is thoroughly mixed outside Aerobic Pond, the most mixed
Close the top of Aerobic Pond, waste water underwater arranges dissolved oxygen sensing regulation device, and described dissolved oxygen sensing regulates and controls
Device is according to oxygen capacity regulation and control aerator work；The described exit being thoroughly mixed Aerobic Pond is laid with downflow weir
(4-4)；
The described outlet pipe being thoroughly mixed Aerobic Pond (4) connects second pond, is provided with sludge reflux bottom second pond
System, a part of sludge reflux to deflector type anoxia anaerobic reation pool (3) and be thoroughly mixed Aerobic Pond (4)
In；
Water after sedimentation in secondary sedimentation tank process enters the water inlet pipe (5-4) of reflux formula BAF through downflow weir；
The middle and upper part of described reflux formula BAF (5) is conical structure for cylindrical, bottom, bag
Include lower current area (5-1), ascending zone (5-2) and mud district (5-3)；Described lower current area (5-1) is positioned at instead
The middle part of the cylindrical structural of streaming BAF, for cylindrical structural, lower current area top is provided with into water
Pipe (5-4) and water distributor (5-5), be provided with filler (5-6) in the middle part of lower current area, lower current area bottom is provided with aeration
Pipe (5-7), the bottom of described lower current area is provided with the second deflection plate (5-8), described the second deflection plate (5-8)
Vertical section be horn-like；Described ascending zone (5-2) is positioned at the periphery of lower current area (5-1), deflection plate
Top, is provided with filler (5-9) in the middle part of ascending zone, bottom is provided with aeration tube, and the exit on ascending zone top sets
There is overfalling weir (5-10)；Described mud district (5-3) is positioned at the bottom of reflux formula BAF, dirty
District and the bottom of ascending zone, the bottom in mud district is provided with mud discharging valve (5-11).
2. one kind uses chemi-mechanical pulp Waste Water Treatment as claimed in claim 1 to carry out waste water process
Method, has following steps:
1. chemical machinery pulp waste water enters wastewater equalization pond regulating water quality and the water yield by water inlet pipe；
The most then waste water enters the middle and lower part of strengthening flotation tank Disengagement zone by water inlet pipe (1-1)；It is positioned at strengthening
Aeration plate (1-6) below flotation tank water inlet pipe produces a large amount of tiny bubble makes the solids generation in waste water rub
Wipe, remove other pollutant on solids；The tiny bubble that aeration plate (1-6) produces adheres to supernatant
Form mixture to rise under buoyancy, under the effect of strengthening flotation tank three phase separator (1-9), mixed
Zoarium rises to Ji Zhaqu (1-5), and under the effect of scum board (1-11), scum silica frost enters scum trough (1-12)
And cleaned outward transport；Precipitate sinks to strengthen the silt particle district (1-2) of flotation tank bottom under gravity,
Discharged by the sediment discharge valve (1-13) bottom strengthening flotation tank；Water after separating treatment is at strengthening gas
Enter strengthening flotation tank gathering ground (1-4) under the deflector effect of Fu Chi three-phase separation area, pass through overfalling weir
(1-10), outlet pipe connects the water inlet pipe (2-5) of ozone oxidation sedimentation tank with connecting tube；
3. waste water enters ozone by ozone oxidation sedimentation tank water inlet pipe (2-5) and water distribution branch pipe (2-4)
The middle and lower part of oxidization and sedimentation basin (2)；It is positioned at the ozonation aerated dish below ozone oxidation sedimentation tank water distribution branch pipe
(2-3) producing a large amount of tiny bubble makes the solids in waste water rub further, simultaneously big point in waste water
Sub-material is oxidized to be prone to absorb and the small-molecule substance of absorption, and the waste water after oxidation Decomposition enters settling zone
Waste water runner, the three phase separator (2-9) of settling zone realizes mud-water separation；Mud under gravity under
Sink to the bottom of ozone oxidation sedimentation tank settling zone (2-2), discharged by the mud valve (2-11) of bottom；
Waste water connects the water inlet pipe of deflector type anoxia anaerobic reation pool by overfalling weir (2-10), outlet pipe with connecting tube
(3-5)；
4. waste water by deflector type anoxia anaerobic reation pool hold concurrently oxygen section water inlet pipe (3-5) enter deflector type anoxia
The bottom of anaerobic reation pool (3)；Waste water enters deflector type anoxia anaerobic reation pool tailing edge deflection plate (3-1)
Advance up and down, pass sequentially through double oxygen section (3-2), anoxia section (3-3) and anaerobism section (3-4) each instead
Answering the Sludge Bed of room, the mud in reaction tank moves along with flowing up and down and the effect of biogas rising of waste water,
The barrier effect of deflection plate (3-1) and the settlement action of mud self make again the flow velocity of mud reduce, the most greatly
The mud of amount is all trapped within reaction tank, and the microorganism in reaction tank is fully contacted with the Organic substance in waste water；
The heterotrophic bacteria of the amphimicrobe of oxygen section (3-2), anoxia section (3-3) and the anaerobism section (3-4) held concurrently is by waste water
Starch, fiber, carbohydrate and dissolved organic matter are hydrolyzed to organic acid, make larger molecular organics decompose
For small organic molecule, insoluble Organic substance changes into dissolved organic matter；
5. the three phase separator (3-6) that the waste water after anaerobic reaction is provided with at anaerobism section (3-4) end realizes
Mud, water, the separation of methane gas, mud sinks to deflector type anoxia anaerobic reation pool under gravity
Bottom, unnecessary mud is discharged by the mud discharging valve (3-8) of bottom；Deflector type anoxia anaerobic reation pool
The methane waste product produced collects discharge by reaction tank top discharge (3-10)；Waste water by overfalling weir,
Outlet pipe connects the water inlet pipe being thoroughly mixed Aerobic Pond (4) with connecting tube；
6. waste water enters the middle and lower part being thoroughly mixed Aerobic Pond (4) by water inlet pipe (4-1), at water distribution three
Water distribution uniformity under the effect of pyramid (4-2), described aeration plate is the pore type aeration being evenly arranged with micropore
Dish, produces substantial amounts of microbubble, and described dissolved oxygen sensing regulation device works according to oxygen capacity regulation and control aerator,
Guarantee that the dissolved oxygen being thoroughly mixed in aerobic water passes through downflow weir (4-4) more than 2mg/L, the waste water after process
Flow out with outlet pipe；
7. the outlet pipe being thoroughly mixed Aerobic Pond (4) connects the water distributor of second pond, the precipitating sludge of second pond
A part of sludge reflux is to deflector type anoxia anaerobic reation pool (3) and is thoroughly mixed in Aerobic Pond (4), one
Part is as excess sludge；
8. the water after sedimentation in secondary sedimentation tank processes enters reflux formula BAF (5) through second pond downflow weir；
9. waste water is entered under reflux formula BAF by water inlet pipe (5-4) and water distributor (5-5)
Stream district (5-1), the air that aeration tube (5-7) produces and waste water cross in filler (5-6) and biochemistry occur
Reaction, waste water is filtered by filler (5-6) simultaneously, and waste water enters upstream afterwards by deflection plate (5-8)
, there is biochemical reaction in district (5-2) in filler (5-9), waste water is filtered by filler (5-9) simultaneously,
The mud that lower current area (5-1) and ascending zone (5-2) produce sinks to mud district (5-3), by mud district
The mud discharging valve (5-11) of bottom emits, and the water after reflux formula BAF processes passes through to overflow
Mill weir (5-10) enters reuse after clear water reserviors；
10. ozone oxidation sedimentation tank (2), deflector type anoxia anaerobic reation pool (3), be thoroughly mixed Aerobic Pond (4),
Transport outward after the excess sludge dehydration that second pond and reflux formula BAF (5) produce.
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| CN105060611A (en) * | 2015-07-17 | 2015-11-18 | 常州大学 | Advanced treatment system for cinnamic acid production wastewater |
| CN105645680A (en) * | 2016-01-11 | 2016-06-08 | 常州大学 | Rabbit processing wastewater treatment plant |
| CN108298688A (en) * | 2018-04-12 | 2018-07-20 | 北京昊业同宇科技有限公司 | The processing unit and method of high-concentration sewage |
| CN108862858A (en) * | 2018-07-06 | 2018-11-23 | 常州大学 | A kind of tobacco sheet wastewater processing unit |
| CN109851183A (en) * | 2019-01-08 | 2019-06-07 | 长江师范学院 | A kind of oil field mud processing unit and oil field mud processing method |
| CN110066070A (en) * | 2019-04-30 | 2019-07-30 | 秾源科技(北京)有限公司 | A kind of method and application using residual hydrogen peroxide autoxidation treatment of pulp waste liquid |
| CN110228914A (en) * | 2019-07-12 | 2019-09-13 | 生态环境部南京环境科学研究所 | Environmental emergency uses mobile modularized organic chemical wastewater treatment device |
| CN111253010A (en) * | 2020-02-25 | 2020-06-09 | 常州大学 | Straight-flow type waste water pretreatment device for automobile repair shop |
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| CN102092804B (en) * | 2009-12-11 | 2012-08-22 | 山东太阳纸业股份有限公司 | Zero-emission treatment method for wastewater of chemi-mechanical pulp |
| CN102616998B (en) * | 2012-04-09 | 2013-10-02 | 泉州市天龙环境工程有限公司 | Device for treating wastewater produced in production process of alkaline peroxide mechanical pulp (APMP) |
| CN102659290B (en) * | 2012-05-25 | 2013-12-25 | 中国林业科学研究院林产化学工业研究所 | Method for advanced treatment of high-concentration chemi-mechanical pulp effluent by catalytic oxidation |
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Effective date of registration: 20201113 Address after: No.008 Zijing Avenue, Chahe Town Industrial Park, Pizhou City, Xuzhou City, Jiangsu Province Patentee after: Jiangsu Yikun Medical Technology Co.,Ltd. Address before: Gehu Lake Road Wujin District 213164 Jiangsu city of Changzhou province No. 1 Patentee before: CHANGZHOU University |
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