CN108821517A - A kind of sewage disposal device and its processing method - Google Patents
A kind of sewage disposal device and its processing method Download PDFInfo
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- CN108821517A CN108821517A CN201810859697.6A CN201810859697A CN108821517A CN 108821517 A CN108821517 A CN 108821517A CN 201810859697 A CN201810859697 A CN 201810859697A CN 108821517 A CN108821517 A CN 108821517A
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
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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
- C02F3/30—Aerobic and anaerobic processes
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a kind of sewage disposal device and its processing methods, are related to technical field of sewage, solve the technical issues of existing sewage disposal device can not be by wastewater ocean disposal.Sewage disposal device of the invention includes：Pretreatment unit：Pretreatment unit is for being filtered and precipitating to treatment sewage, to remove the suspended matter in treatment sewage.Denitrogenation dephosphorizing unit：Denitrogenation dephosphorizing unit is connect with pretreatment unit, and denitrogenation dephosphorizing unit includes anaerobic pond, anoxic pond and aerobic tank, anaerobic pond, anoxic pond and aerobic tank are sequentially connected, so that sewage after pretreatment passes sequentially through anaerobic pond, anoxic pond and aerobic tank and carries out denitrogenation dephosphorizing processing.Mud-water separation unit：Mud-water separation unit is connect with denitrogenation dephosphorizing unit, and mud-water separation unit carries out mud-water separation to the mixed liquor that aerobic tank is discharged using MBR film sewage treatment device.Sewage disposal device of the invention, can high-efficient denitrification and dephosphorization, sewage can purify for clear water recycling.
Description
Technical field
The present invention relates to technical field of sewage more particularly to a kind of sewage disposal device and its processing methods.
Background technique
It has all been to remove and contain since being established using activated sludge process as the biochemical wastewater treatment technology of representative from early 20th century
Carbon organic matter is the sewage second-level biochemical treatment of core.Its water quality level for handling water is only capable of reaching BOD520mg/L、SS20mg/
L, and ammonia nitrogen and phosphorus only have fraction to synthesize for cell in raw sewage.In recent years, China clearly proposes that sewage treatment plant gradually wants
Reach GB18918-2002《Urban wastewater treatment firm pollutant emission standard》The requirement of level-one A, the standard and many users'
It is close to regenerate water quality standard.
The removal pathway of phosphor in sewage mainly utilizes chemical method or bioanalysis, and the phosphorus in sewage is first enriched to sludge
In, then mud-water separation is carried out, to realize the removal of the phosphorus in sewage.Since bioanalysis dephosphorization has without adding chemical agent
The advantages that higher with sludge fertilizer point, more meet the requirement of sustainable development, there is preferable researching value and application prospect.City
Nitrogen transition in sewage is first gaseous state object mainly using the method for chemistry or biology by the removal pathway of nitrogen in sewage
Matter such as NH3、N2, then realize by gas-liquid separation the removal of the nitrogen in sewage, in addition, there are also part nitrogens with excess sludge and
Discharge, and enter sludge treating system.Relative to chemical denitrogenation, biological denitrificaion has many advantages, such as to be not required to add chemical agent,
There is more extensive development space during advanced treatment of wastewater.
Biological phosphate-eliminating needs could complete dephosphorization in the environment of anaerobism, aerobic alternating at present, and biological denitrificaion then needs
Anoxic, it is two kinds aerobic under the conditions of carry out.Therefore, to reach simultaneous nitrogen and phosphorus removal purpose, must just create microorganism needs
Three kinds of aerobic, anoxic, anaerobism physiological environments, thus constitute the A of not only dephosphorization but also denitrogenation2/O(anaerobic-anoxic-
Oxic, anaerobic/anoxic/aerobic) technique.Currently, the technique is applied in many sewage treatment plants all over the world, but
Be, longtime running the result shows that, when phosphor-removing effect is preferable, denitrification effect is often poor；And denitrification effect it is preferable when, phosphor-removing effect
Undesirable, it can not generally reach good removal effect simultaneously.
In addition, existing sewage water treatment method, after the water outlet after biological carbon and phosphorous removal carries out disinfection, typically directly
Discharge, also it is unable to reach the standard of reuse.And China is the serious country of drought and water shortage, if can be further net by sewage
For cleaning road surface, water for building etc. after change, the water resource in China will be greatlyd save.MBR is efficient sewage treatment work
Skill operates and is had with moderately good wastewater treatment efficiency, under the conditions of high concentration sludge high degree of automation, adapts to
The advantages that property is strong.Therefore, existing sewage-treatment plant and processing method are improved, MBR technology is applied at sewage
Reason, providing a kind of can be known as technical problem urgently to be solved for the sewage-treatment plant of wastewater ocean disposal and processing method.
Summary of the invention
One of purpose of the invention is to propose a kind of sewage disposal device and its processing method, solves existing sewage
The technical issues of equipment can not be by wastewater ocean disposal.Many technical effects that optimal technical scheme of the present invention can be generated are detailed in
It is set forth below.
To achieve the above object, the present invention provides following technical schemes：
Sewage disposal device of the invention includes：Pretreatment unit：The pretreatment unit be used for treatment sewage into
Row filtering and precipitating, to remove the suspended matter in the treatment sewage；
Denitrogenation dephosphorizing unit：The denitrogenation dephosphorizing unit is connect with the pretreatment unit, and the denitrogenation dephosphorizing list
Member includes anaerobic pond, anoxic pond and aerobic tank, and the anaerobic pond, the anoxic pond and the aerobic tank are sequentially connected, so that through
Pretreated sewage passes sequentially through the anaerobic pond, the anoxic pond and the aerobic tank and carries out denitrogenation dephosphorizing processing；
Mud-water separation unit：The mud-water separation unit is connect with the denitrogenation dephosphorizing unit, and the mud-water separation
Unit carries out mud-water separation to the mixed liquor that aerobic tank is discharged using MBR film sewage treatment device.
At one preferably or in optional embodiment, the pretreatment unit includes grid, primary sedimentation tank and hair filtering
Device, wherein
The connection of the water inlet end of the grid and treatment sewage, the grid, the primary sedimentation tank and the hair filter
It is sequentially connected,
The grid includes at least two-stage grid, and the decreasing pore size of grid at different levels,
The suspended material in treatment sewage to be filtered for multiple times by at least two-stage grid, and by described
Inorganic matter and hair in primary sedimentation tank and hair filter removal treatment sewage.
One preferred or optional embodiment in, the denitrogenation dephosphorizing unit further include the first solid-liquid separation unit,
Second solid-liquid separation unit, reaction tank, chemical precipitation pond and nitrification tank, wherein
First solid-liquid separation unit is set to the anoxic pond front end, and second solid-liquid separation unit is set to institute
Anoxic pond rear end is stated, the reaction tank, the chemical precipitation pond and the nitrification tank are located at the top of the anoxic pond, and institute
It states reaction tank and the chemical precipitation pond is located at the front end of the nitrification tank,
Separated so that first solid-liquid separation unit will be imported through the anaerobic pond treated mixed liquor, and will point
Supernatant from rear 10~20% imports the reaction tank, and remaining supernatant enters in the nitrification tank, and the muddy water after separation is mixed
Object is closed to import in the anoxic pond；
Into the supernatant of the reaction tank, dephosphorization processing is carried out by the way that Dephosphorization reagent is added into the reaction tank, then
Precipitation process is carried out by the chemical precipitation pond, and supernatant is imported in the nitrification tank, chemical sludge passes through sludge pump
It takes away；
Second solid-liquid separation unit will be imported through the anoxic pond treated mixed liquor to separate, and will separation
Supernatant afterwards imports in the nitrification tank, and the mud mixture after separation is fallen after rise under the effect of gravity to the anoxic pond.
One preferred or optional embodiment in, the nitrification tank includes the first nitrification tank, the second nitrification tank and the
Three nitrification tanks, and first nitrification tank is located on the left of the third nitrification tank, and second nitrification tank is located at the third
On the upside of nitrification tank,
First solid-liquid separation unit and second solid-liquid separation unit import the elder generation of the supernatant in the nitrification tank
It is nitrified into level-one is completed in first nitrification tank, then sequentially enters second nitrification tank and third nitrification tank completion
Second level nitrification and three-level nitrification, and nitrify and generate nitrification liquid into the anoxic pond, the mixed liquor of the anoxic pond enters institute
Aerobic tank is stated further to nitrify.
At one preferably or in optional embodiment, the anaerobic pond, the anoxic pond and the aerobic tank are thrown respectively
Added with the floating stuffing of different filling rates, and treatment sewage is controlled in the anaerobic pond, the anoxic pond, the aerobic tank point
Ting Liu not be 0.5~1 hour, 0.5~2 hour and 3~5 hours, to pass through the anaerobic pond, the anoxic pond, the aerobic tank
Organic matter, ammonia nitrogen and phosphorus in the activated sludge of middle suspension and the biomembrane being attached on floating stuffing removing sewage.
One preferred or optional embodiment in, what the anaerobic pond added is to carry the suspension of polyP bacteria to fill out
Material, and the filling rate of the floating stuffing for carrying polyP bacteria accounts for the 10~20% of the anaerobic pond dischargeable capacity；
What the anoxic pond added is to carry the floating stuffing of denitrifying bacterium, and described carry the outstanding of denitrifying bacterium
The filling rate of floating filler accounts for the 20~30% of the anoxic pond dischargeable capacity；
What the aerobic tank added is to carry the floating stuffing of nitrifier, and the suspension for carrying nitrifier is filled out
The filling rate of material accounts for the 30~50% of the aerobic tank dischargeable capacity.
At one preferably or in optional embodiment, the mud-water separation unit includes MBR film case, filtered water tank and recoil
Water tank, wherein
It is equipped with hollow fiber film assembly in the MBR film case, leads between the hollow fiber film assembly and the filtered water tank
Piping connection, will through the hollow fiber film assembly treated produce water be delivered in the filtered water tank, the backwash
It is connected between water tank and the hollow fiber film assembly by pipeline, the water stored in the backwash water tank is delivered to institute
It states in hollow fiber film assembly；Wherein,
The hollow fiber film assembly includes multiple hollow fibre membrane components being set parallel to each other, the hollow-fibre membrane
Element includes putamina and film wire, and the one side contacted on the putamina with the film wire is equipped with groove, is provided in the groove viscous
Glue-line, film wire fixation to be encapsulated in the putamina by the bonding of the film wire and the adhesive-layer；
The side of the cabinet of the MBR film case is equipped with water inlet pipe, and the top surface of the cabinet is equipped with outlet pipe, and institute
It states and separation net is installed above water inlet pipe, the aeration tube through the box bilateral wall is installed above the separation net；
The aeration tube is bilateral air inlet pipe, and the aeration tube upper end is provided with tubaeform aeration opening, the aeration
The quantity of mouth is no less than the quantity of the hollow fibre membrane component, so that one end of the hollow fibre membrane component passes through the exposure
Port is connect with the aeration tube, and water outlet is provided on the outlet pipe, and the quantity of the water outlet is no less than described hollow
The quantity of fiber membrane component, the water outlet is tubaeform, so that the other end of the hollow fibre membrane component goes out described in
The mouth of a river is connect with the outlet pipe.
Preferably or in optional embodiment, sewage pipe, the MBR film case are additionally provided in the MBR film case at one
The bottom of box be pyramidal structure, the sewage pipe is set to the apex of the pyramidal structure, wherein
One end of the sewage pipe is sewage draining exit, and the sewage outfalls setting is and the bottom of box pyramidal structure phase
Matched structure, the sewage draining exit is installed at the pyramidal structure of the bottom of box, the other end warp of the sewage pipe
It is stretched out by the bottom of the cabinet.
At one preferably or in optional embodiment, the mud-water separation unit further includes liquidometer and PLC control dress
It sets, the liquidometer is set in the MBR film case and connect with the PLC control device,
The first production water valve, water pump and the second production water valve have been sequentially connected in series between the outlet pipe and the filtered water tank,
The first backwash valve, water pump and the second backwash valve have been sequentially connected in series between the backwash water tank and the water inlet pipe,
Described first produces water valve, the water pump, the second production water valve, first backwash valve and second recoil
Valve is washed to connect with the PLC control device,
So that the data control described first that the PLC control device is monitored based on the liquidometer produces water valve, described the
Two production water valves, first backwash valve and/or second backwash valve open or close, will be through the hollow-fibre membrane
Treated produces water and be delivered in the filtered water tank for component, or the water that stores in the backwash water tank is delivered to described
In hollow fiber film assembly.
Sewage water treatment method of the invention is to utilize sewage described in one of any technical solution claim 1~9 of the present invention
Processing equipment is handled.The sewage water treatment method of the embodiment of the present invention, includes the following steps：
Pretreatment：Treatment sewage is imported into pretreatment unit, and filtering and precipitation process are completed by pretreatment unit,
Remove the suspended matter in treatment sewage；
Denitrogenation dephosphorizing：Pretreated sewage is imported into anaerobic pond, sewage separates the sludge of reflux with mud-water separation unit
Mixing, treatment sewage complete preliminary dephosphorization under the action of carrying polyP bacteria floating stuffing in anaerobic pond, and will be after processing
Mixed liquor import in the first solid-liquid separation unit, the supernatant that generates after the separation of the first solid-liquid separation unit, 10~20% lead
Enter reaction tank, remaining supernatant enters in nitrification tank, and the mud mixture after separation imports in anoxic pond；
Into the supernatant of reaction tank, secondary dephosphorization processing is carried out by the way that Dephosphorization reagent is added into reaction tank, then pass through
Chemical precipitation pond carries out precipitation process, and supernatant is imported in nitrification tank, and chemical sludge is taken away by sludge pump；
Into the mixture in anoxic pond, the nitrification liquid generated with nitrification tank is mixed, and denitrification is carried in anoxic pond
Preliminary denitrogenation is completed under the action of bacterium floating stuffing, and mixed liquor imports in the second solid-liquid separation unit by treated, second
The supernatant generated after solid-liquid separation unit separation imports in nitrification tank, and the mud mixture after separation is fallen after rise under the effect of gravity
To anoxic pond；
First solid-liquid separation unit and the second solid-liquid separation unit import the supernatant in nitrification tank under aeration state, lead to
It is nitrate nitrogen that the filler being placed in nitrification tank, which is crossed, by ammonium oxidation, and nitrification liquid enters in anoxic pond through power drive；
The mixed liquor handled through anoxic pond imports aerobic tank, and under aeration state, mixed liquor polyP bacteria carries out three times herein
Dephosphorization, and ammonium oxidation is again nitrate nitrogen by mixed liquor carries nitrifier floating stuffing in aerobic tank under the action of；
Mud-water separation：Aerobic tank discharge mixed liquor the bottom of box is entered by water inlet pipe, from bottom to top by separation net every
From the suspended matter in sewage, it is discharged after suspended matter precipitating by sewage pipe, the sewage after separation net is isolated is in hollow-fibre membrane
Purification is clear water in component, and the clear water generated is evacuated in filtered water tank through outlet pipe；
It is clear in water tank by backwashing when data or hollow fibre membrane component based on liquidometer detection block
Water is evacuated to for washing hollow-fiber membrane component in MBR film case, so that hollow fibre membrane component restores detergent power again.
Sewage disposal device provided in an embodiment of the present invention and its processing method at least have following advantageous effects：This
The sewage disposal device of inventive embodiments is divided into pretreatment unit, denitrogenation dephosphorizing unit and mud-water separation unit, and sewage is located in advance
It after managing unit pretreatment, can remove the most suspended substances in sewage, avoid influencing subsequent processing efficiency；Dirt after pretreatment
By denitrogenation dephosphorizing unit, the method combined using biological carbon and phosphorous removal with chemical treatment is walked water by multiple dephosphorization denitrogenation
Suddenly, can by sewage phosphorus and nitrogen purify it is thorough；Sewage mixture after denitrogenation dephosphorizing continues through mud-water separation unit and adopts
Carry out purified treatment with MBR technology, can not only reduce the use of secondary settling tank, moreover it is possible to by sewage purification be clear water reuse, significantly
The water resource in China is saved.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of one preferred embodiment of sewage disposal device；
Fig. 2 is the structural schematic diagram of one preferred embodiment of denitrogenation dephosphorizing unit；
Fig. 3 is the structural schematic diagram of one preferred embodiment of mud-water separation unit；
Fig. 4 is a preferred embodiment schematic diagram of MBR film case；
Fig. 5 is one preferred embodiment schematic diagram of hollow fibre membrane component；
Fig. 6 is one preferred embodiment schematic diagram of putamina.
1- pretreatment unit in figure；2- denitrogenation dephosphorizing unit；3- mud-water separation unit；4- anaerobic pond；5- anoxic pond；6- is good
Oxygen pond；The first solid-liquid separation unit of 7-；The second solid-liquid separation unit of 8-；9- reaction tank；10- chemical precipitation pond；11- nitrification tank；
12- filler；13- grid；14- primary sedimentation tank；15- hair filter；The first nitrification tank of 16-；The second nitrification tank of 17-；18- third nitre
Change pond；19- filtered water tank；20-MBR film case；21- backwashes water tank；22- hollow fiber film assembly；23- first produces water valve；24- water
Pump；25- second produces water valve；The first backwash valve of 26-；The second backwash valve of 27-；28- ball-cock assembly；29- liquidometer；30- cabinet；
31- water inlet pipe；32- separation net；33- aeration tube；34- outlet pipe；35- hollow fibre membrane component；36- sewage pipe；37- blowdown
Mouthful；38- water outlet；39- putamina；40- film wire；41- groove；42- aeration opening.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
With reference to the accompanying drawing 1~6 and Examples 1 to 3 to the sewage disposal device of the embodiment of the present invention and its processing side
Method is described in detail.
Embodiment 1
As shown in Figure 1, the sewage disposal device of the embodiment of the present invention includes pretreatment unit 1, denitrogenation dephosphorizing unit 2 and mud
Water separative unit 3.Wherein, pretreatment unit 1 is for being filtered and precipitating to treatment sewage, to remove in treatment sewage
Suspended matter.Denitrogenation dephosphorizing unit 2 is connect with pretreatment unit 1.Preferably, denitrogenation dephosphorizing unit 2 includes anaerobic pond 4, anoxic
Pond 5 and aerobic tank 6, anaerobic pond 4, anoxic pond 5 and aerobic tank 6 are sequentially connected, so that sewage after pretreatment passes sequentially through and detests
Oxygen pond 4, anoxic pond 5 and aerobic tank 6 carry out denitrogenation dephosphorizing processing.Mud-water separation unit 3 is connect with denitrogenation dephosphorizing unit 2.It is preferred that
, mud-water separation unit 3 carries out mud-water separation to the mixed liquor that aerobic tank 6 is discharged using MBR film sewage treatment device.
The sewage disposal device of the embodiment of the present invention is divided into pretreatment unit 1, denitrogenation dephosphorizing unit 2 and mud-water separation unit
3, it after the preprocessed unit 1 of sewage pre-processes, can remove the most suspended substances in sewage, avoid influencing subsequent processing efficiency；
By denitrogenation dephosphorizing unit 2, the method combined using biological carbon and phosphorous removal with chemical treatment is passed through sewage after pretreatment
Multiple dephosphorization denitrogenation step, can by sewage phosphorus and nitrogen purify it is thorough；Sewage mixture after denitrogenation dephosphorizing continues through
3 yuan of mud-water separation list carry out purified treatment using MBR technology, can not only reduce the use of secondary settling tank, moreover it is possible to by sewage purification
For clear water reuse, the water resource in China is greatly saved.
Referring again to Fig. 1, pretreatment unit 1 includes grid 13, primary sedimentation tank 14 and hair filter 15.Wherein, grid 13
It is connect with the water inlet end for the treatment of sewage, grid 13, primary sedimentation tank 14 and hair filter 15 are sequentially connected.Preferably, grid 13
Including at least two-stage grid, and the decreasing pore size of grid at different levels.The pretreatment unit 1 of optimal technical scheme of the present invention is logical
It crosses at least two-stage grid the suspended material in treatment sewage is filtered for multiple times, and passes through primary sedimentation tank 14 and hair filter
Inorganic matter and hair in 15 removal treatment sewages.
With continued reference to Fig. 1, denitrogenation dephosphorizing unit 2 further includes the first solid-liquid separation unit 7, the second solid-liquid separation unit 8, anti-
Answer pond 9, chemical precipitation pond 10 and nitrification tank 11.Wherein, the first solid-liquid separation unit 7 is set to 5 front end of anoxic pond, the second solid-liquid
Separative unit 8 is set to 5 rear end of anoxic pond, and reaction tank 9, chemical precipitation pond 10 and nitrification tank 11 are located at the top of anoxic pond 5, and
And reaction tank 9 and chemical precipitation pond 10 are located at the front end of nitrification tank 11.
The denitrogenation dephosphorizing unit 2 of optimal technical scheme of the present invention will import first through treated the mixed liquor of anaerobic pond 4 and consolidate
Liquid separative unit 7 is separated, and after separation 10~20% supernatant is imported reaction tank 9, and remaining supernatant enters nitrification
In pond 11, the mud mixture after separation is imported in anoxic pond 5.Into the supernatant of reaction tank 9, by adding into reaction tank 9
Enter Dephosphorization reagent and carry out dephosphorization processing, then precipitation process is carried out by chemical precipitation pond 10, and supernatant is imported into nitrification tank 11
In, chemical sludge is taken away by sludge pump.The second solid-liquid separation unit 8 will be imported through treated the mixed liquor of anoxic pond 5 to carry out
Separation, and the supernatant after separation is imported in nitrification tank 11, the mud mixture after separation is fallen after rise under the effect of gravity to scarce
Oxygen pond 5.
As shown in Fig. 2, nitrification tank 11 includes the first nitrification tank 16, the second nitrification tank 17 and third nitrification tank 18.Preferably,
First nitrification tank 16 is located at 18 left side of third nitrification tank, and the second nitrification tank 17 is located at 18 upside of third nitrification tank.The present invention is preferred
2 first solid-liquid separation unit 7 of denitrogenation dephosphorizing unit of technical solution and the second solid-liquid separation unit 8 import upper in nitrification tank 11
Clear liquid, which is introduced into the first nitrification tank 16, completes level-one nitrification, then sequentially enters the second nitrification tank 17 and the completion of third nitrification tank 18
Second level nitrification and three-level nitrification, generate nitrification liquid and enter anoxic pond 5, the mixed liquor of anoxic pond 5 enters the further nitre of aerobic tank 6
Change.
The denitrogenation dephosphorizing unit 2 of optimal technical scheme of the present invention completes pretreated sewage and enters anaerobic pond 4, in anaerobism
In pond 4, sewage is mixed with the sludge that mud-water separation unit 3 flows back, and under anaerobic, microorganism sufficiently releases phosphorus and absorbs in water
Organic matter.In anoxic pond 5, nitrification liquid is mixed with the mud mixture from the first solid-liquid separation unit 7, and microorganism utilizes
Anaerobic stages absorb and the organic matter of storage, and denitrification occurs with nitrate nitrogen, and complete excess suction phosphorus under anoxic conditions, and one
Carbon is dual-purpose, as long as carbon source is enough denitrification, can meet the requirement of biological denitrificaion and biological phosphate-eliminating.
The supernatant generated after the processing of the second solid-liquid separation unit 8 is imported nitrification tank 11, bottom mud mixture exists
Gravity drops down onto anoxic pond 5 next time.The residence time of first solid-liquid separation unit 7 is short, and the mud mixture amount of generation is big, takes
Enter anoxic pond 5 with more ammonia nitrogen (40%-50% of ammonia nitrogen in raw water), by the upper of the second solid-liquid separation unit 8
Clear liquid imports nitrification tank 11, can further decrease the ammonia nitrogen concentration of anoxic pond, while also increasing the basicity of nitrification tank 11.
The supernatant flowed out from two solid-liquid separation units enters nitrification tank 11, loads filler 12, bottom in nitrification tank 11
Aeration after ammonia nitrogen is oxidized to nitrate nitrogen, is discharged (nitrification liquid) by powered and enters anoxic pond 5.Nitre in nitrification tank 11
Change rate is higher, and reason has：(1) after anaerobic pond 4, organic matter is absorbed by the micro-organisms, and organic concentration is lower in supernatant,
The competition for reducing heterotroph is conducive to the growth of nitrifier；(2) because in nitrification tank 11 organic concentration it is low, the dress of filler 12
Filling density can reach 2-4 times of standard biologic embrane method；The supernatant of (3) second solid-liquid separation units 8 is that nitrification tank 11 provides
Basicity.
The mixed liquor of anoxic pond 5 enters aerobic tank 6, is aerated in aerobic tank 6, and ammonia nitrogen is further aoxidized, and gathers
Phosphorus bacterium can further inhale phosphorus herein, reduce the phosphorus concentration in liquid phase, while reduce organic matter (storage in liquid phase and microbial body
Deposit) concentration.The presence of nitrification tank reduces organic concentration in anoxic pond, therefore organic concentration is also corresponding in aerobic tank
It reduces, the nitrification in aerobic tank is more significant.Through aerobic tank 6, treated that part mixed liquor flows back into anoxic pond 5, take
The nitrate nitrogen of band carries out denitrification in anoxic pond 5, and denitrification effect can be improved.
According to a preferred embodiment, anaerobic pond 4, anoxic pond 5 and aerobic tank 6 add the outstanding of different filling rates respectively
Floating filler, and control treatment sewage and stopped respectively 0.5~1 hour, 0.5~2 hour in anaerobic pond 4, anoxic pond 5, aerobic tank 6
With 3~5 hours, by anaerobic pond 4, anoxic pond 5, the activated sludge to suspend in aerobic tank 6 and to be attached on floating stuffing
Biomembrane removes organic matter, ammonia nitrogen and the phosphorus in sewage.Preferably, it is put into respectively in anaerobic pond 4, anoxic pond 5 and aerobic tank 6
It is obligate dephosphorization bacterial and obligate denitrifier, dephosphorization and denitrification effect are preferable.
According to a preferred embodiment, what anaerobic pond 4 added is to carry the floating stuffing of polyP bacteria, and carry
The filling rate of the floating stuffing of polyP bacteria accounts for the 10~20% of 4 dischargeable capacity of anaerobic pond.What anoxic pond 5 added is to carry anti-nitre
Change bacterium floating stuffing, and the filling rate for carrying the floating stuffing of denitrifying bacterium account for 5 dischargeable capacity of anoxic pond 20~
30%.What aerobic tank 6 added is the filling rate for carrying the floating stuffing of nitrifier, and carrying the floating stuffing of nitrifier
Account for the 30~50% of 6 dischargeable capacity of aerobic tank.
Embodiment 2
Present embodiments provide a kind of mud-water separation unit 3 of preferred embodiment.
As shown in figure 3, the mud-water separation unit 3 of the present embodiment includes MBR film case 20, filtered water tank 19 and backwash water tank
21.Wherein, it is equipped with hollow fiber film assembly 22 in MBR film case 20, passes through pipe between hollow fiber film assembly 22 and filtered water tank 19
Road connection, will through hollow fiber film assembly 22 treated produce water be delivered in filtered water tank 19, backwash water tank 21 with it is hollow
It is connected between fiber film component 22 by pipeline, the water stored in water tank 21 will be backwashed and be delivered to hollow fiber film assembly 22
In.Preferably, the ball-cock assembly 28 being provided in water tank 21 for controlling its water level is backwashed, is had to ensure to backwash in water tank 21
Enough water is used for washing hollow-fiber membrane module 22.
The mud-water separation unit 3 of optimal technical scheme of the present invention backwashes water tank 21 by setting, and will backwash water tank
The water stored in 21 is delivered in hollow fiber film assembly 22, when hollow fiber film assembly 22 pollutes, by hollow
Fiber film component 22 applies back flush pressure, and the ejected wash water backwashed in water tank 21 can be made to pass back through hollow fiber film assembly
22, so that the tamper in fenestra is removed, to reduce the substances such as grease, the sludge in the mixed liquor of the discharge of aerobic tank 6 to film
The blocking in hole, to extend the service life of hollow-fibre membrane membrane module 22.
As shown in Fig. 4 or Fig. 5, hollow fiber film assembly 22 includes multiple hollow fibre membrane components being set parallel to each other
35.Hollow fibre membrane component 35 includes putamina 39 and film wire 40.As shown in fig. 6, what is contacted on putamina 39 with film wire 40 sets on one side
Fluted 41, adhesive-layer is provided in groove 41, to be encapsulated in the fixation of film wire 40 by the bonding of film wire 40 and adhesive-layer
In putamina 39.Preferably, putamina 211 is round, rectangular or polygon structure.It is furthermore preferred that groove 2111 is distributed in a ring,
Adhesive-layer is epoxy resin layer, so that film wire 212 forms a-circle-by-a-circle ring structure, this kind knot after being fixed on putamina 211
Structure facilitates the membrane flux for increasing film wire 212.
The mud-water separation unit 3 of optimal technical scheme of the present invention injects glue in the groove 41 of putamina 3, make film wire 40 with
Putamina 39 is fixedly connected by glue, facilitates the stability of both enhancings connection.On the other hand, in the groove 41 of putamina 39
Glue is injected, part glue can also flow into the gap between film wire 40 and film wire 40, sufficiently cementation and can separate every film wire
40, so that can avoid a branch of film wire 40 should swing for a long time in machine running process and cause what film wire 40 fell off to show
As, while also can avoid the problem of film wire 40 is mutually close to and makes flux depression.
Referring again to Fig. 4, the side of the cabinet 30 of MBR film case 20 is equipped with water inlet pipe 31, and the top surface of cabinet 30 is equipped with
Outlet pipe 34, and the top of water inlet pipe 31 is equipped with separation net 32, and the top of separation net 32 is equipped with through 30 two sides of cabinet
The aeration tube 33 of wall.Preferably, aeration tube 33 is bilateral air inlet pipe, and 33 upper end of aeration tube is provided with tubaeform aeration opening
42, the quantity of aeration opening 42 is no less than the quantity of hollow fibre membrane component 35, so that one end of hollow fibre membrane component 35 passes through
Aeration opening 42 is connect with aeration tube 33.Water outlet 38 is provided on outlet pipe 34, the quantity of water outlet 38 is no less than doughnut
The quantity of membrane component 35, water outlet 38 is tubaeform, so that the other end of hollow fibre membrane component 35 is by water outlet 38 and goes out
Water pipe 34 connects.
The mud mixture being discharged through aerobic tank 6 enters 30 bottom of cabinet by water inlet pipe 31, passes through separation net from bottom to top
32, the suspended matter in sewage can be isolated in separation net 32, extracted out after suspended matter precipitating by sewage pipe 36.When producing water state, expose
Tracheae 33, which is aerated, makes to generate negative pressure in the hollow fibre membrane component 35 of hollow fiber film assembly 22, sewage via fiber membrane micropore into
Enter in tunica fibrosa, membranous wall micropore obstructs suspended matter and virus, and the aerobic microbiological of membranous wall attachment is degraded organic in aeration atmosphere
Object makes sewage purification at clear water；And first produces water valve 23 and the second production opening of water valve 25, and the first backwash valve 26 and second is anti-
Flushing valve 27 is closed, and water pump 24 provides positive draft, the water in outlet pipe 34 is evacuated in filtered water tank 19.
With continued reference to Fig. 4, sewage pipe 36 is additionally provided in MBR film case 20,30 bottom of cabinet of MBR film case 20 is taper knot
Structure, sewage pipe 36 are set to the apex of pyramidal structure.Preferably, one end of sewage pipe 36 is sewage draining exit 37, and sewage draining exit
37 are set as the structure to match with 30 bottom pyramidal structure of cabinet, and sewage draining exit 37 is installed on to the taper knot of 30 bottom of cabinet
At structure, the other end of sewage pipe 36 is stretched out via the bottom of cabinet 30.
The bottom of box of MBR film case 20 is pyramidal structure by the mud-water separation unit 3 of optimal technical scheme of the present invention, and
And sewage pipe 36 is set to the apex of pyramidal structure, to facilitate the rapid aggregations such as the sludge of filter process generation in this
At pyramidal structure, and the sewage pipe 36 by being set to pyramidal structure apex is discharged, so as to avoid sludge etc. in MBR film
Influence of the accumulation to hollow-fibre membrane membrane module 22 filter efficiency and service life in case 20.
According to a preferred embodiment, mud-water separation unit 3 further includes liquidometer 29 and PLC control device, liquidometer
29 are set in MBR film case 20 and connect with PLC control device.Has been sequentially connected in series between outlet pipe 34 and filtered water tank 19
One produces water valve 23, water pump 24 and second produces water valve 25, backwashes and has been sequentially connected in series first between water tank 21 and water inlet pipe 31
Backwash valve 26, water pump 24 and the second backwash valve 27.First produces water valve 23, water pump 24, second produces water valve 25, first and backwashes
Valve 26 and the second backwash valve 27 are connect with PLC control device.
The number that the mud-water separation unit 3 of optimal technical scheme of the present invention is monitored using PLC control device based on liquidometer 29
The production of water valve 23, second water valve 25, the first backwash valve 26 and/or the second backwash valve 27 is produced according to control first to open or close,
With will through hollow fiber film assembly 22 treated produce water be delivered in filtered water tank 19, or will backwash water tank 21 in store
Water be delivered in hollow fiber film assembly 22.The mud-water separation unit 3 of optimal technical scheme of the present invention passes through PLC control device
It realizes and automatically controls, can not only substantially reduce labour, mention high control precision, while being also avoided that artificial control because of error in judgement
It is damaged caused by equipment.
According to a preferred embodiment, water pump 24 is capable of providing positive and negative draft.Positive draft is capable of providing in water pump 24
When, first produces water valve 23 and the second production opening of water valve 25, and the first backwash valve 26 and the second backwash valve 27 are closed, mud-water separation
Unit 3, which is in, produces water process.When water pump 24 is capable of providing reversed draft, first, which produces water valve 23 and second, produces the closing of water valve 25,
First backwash valve 26 and the second backwash valve 27 are opened, and mud-water separation unit 3 is in backwash process.
Specifically, when the water level in MBR film case 20 is more than certain value, being said after MBR film case 20 handles a period of time sewage
The flux depression of the hollow fiber film assembly 22 of Ming Qinei, hollow fiber film assembly 22 are contaminated, and liquidometer 29 is by the letter
Breath passes to PLC control device, and PLC control device produces water valve 23, second by control first and produces water valve 25, the first backwash valve
26 and second backwash valve 27 opening and closing, stop produce water, start backwashing procedures, to hollow fiber film assembly 22 carry out
Backwash, makes hollow fiber film assembly 22 restore detergent power again.
Embodiment 3
The sewage water treatment method of the present embodiment is handled using the sewage disposal device of any technical solution of the present invention
's.The sewage water treatment method of the embodiment of the present invention, includes the following steps：
Pretreatment：Treatment sewage is imported into pretreatment unit 1, and filtering and place of settling are completed by pretreatment unit 1
Reason removes the suspended matter in treatment sewage.
Denitrogenation dephosphorizing：Pretreated sewage is imported into anaerobic pond 4, sewage separates the dirt of reflux with mud-water separation unit 3
Mud mixing, treatment sewage complete preliminary dephosphorization under the action of carrying polyP bacteria floating stuffing in anaerobic pond 4, and will processing
Mixed liquor afterwards imports in the first solid-liquid separation unit 7, the supernatant generated after the separation of the first solid-liquid separation unit 7,10~
20% imports reaction tank 9, and remaining supernatant enters in nitrification tank 11, and the mud mixture after separation imports in anoxic pond 5.
Into the supernatant of reaction tank 9, secondary dephosphorization processing is carried out by the way that Dephosphorization reagent is added into reaction tank 9, then lead to
It crosses chemical precipitation pond 10 and carries out precipitation process, and supernatant is imported in nitrification tank 11, chemical sludge is taken away by sludge pump.
Mixture into anoxic pond 5, the nitrification liquid generated with nitrification tank 11 mix, and carry in anoxic pond 5 anti-
Preliminary denitrogenation is completed under the action of nitrifier floating stuffing, and mixed liquor imports in the second solid-liquid separation unit 8 by treated,
The supernatant generated after the separation of second solid-liquid separation unit 8 imports in nitrification tank 11, and the mud mixture after separation is made in gravity
With dropping down onto anoxic pond 5 next time.
First solid-liquid separation unit 7 and the second solid-liquid separation unit 8 import the supernatant in nitrification tank 11 in aeration state
Under, it by ammonium oxidation is nitrate nitrogen by the filler that is placed in nitrification tank 11, nitrification liquid enters in anoxic pond 5 through power drive.
The mixed liquor handled through anoxic pond 5 imports aerobic tank 6, and under aeration state, mixed liquor polyP bacteria carries out three herein
Secondary dephosphorization, and ammonium oxidation is again nitre state by mixed liquor carries nitrifier floating stuffing in aerobic tank 5 under the action of
Nitrogen.
Mud-water separation：The mixed liquor that aerobic tank 6 is discharged enters 30 bottom of cabinet by water inlet pipe 31, from bottom to top by isolation
The suspended matter in sewage is isolated in net 32, is discharged after suspended matter precipitating by sewage pipe 36, and the sewage after the isolation of separation net 32 exists
Purification is clear water in hollow fiber film assembly 22, and the clear water generated is evacuated in filtered water tank 19 through outlet pipe 34.
When the data or hollow fibre membrane component 35 detected based on liquidometer 29 are blocked, water tank 21 will be backwashed
In clear water be evacuated in MBR film case 20 for washing hollow-fiber membrane component 35, so that hollow fibre membrane component 35 restores again
Detergent power.
According to a preferred embodiment, the supernatant into reaction tank 9 has already passed through anaerobic pond and releases phosphorus, phosphorus concentration compared with
Lime can be used in height, Dephosphorization reagent, and reagent cost is low, and is discharged pH higher after precipitating, and the pH value in nitrification tank 11 can be improved, mention
High nitrification effect.Chemical dephosphorization can further decrease water outlet phosphorus concentration on the basis of biological phosphate-eliminating, and water outlet total phosphorus reaches earth's surface
Water Group III standard (0.2mg/L) can reduce biological sludge discharge, generally although producing a certain amount of chemical sludge
With preferable mud decrement effect.
Sewage water treatment method provided in an embodiment of the present invention can remove after the preprocessed unit pretreatment of sewage in sewage
Most suspended substances, avoid influence subsequent processing efficiency；Sewage after pretreatment, at biological carbon and phosphorous removal and chemistry
Manage the method that combines, by multiple dephosphorization denitrogenation step, can by sewage phosphorus and nitrogen purify it is thorough；After denitrogenation dephosphorizing
Sewage mixture continues through MBR technology and carries out purified treatment, can not only reduce the use of secondary settling tank, moreover it is possible to by sewage purification
For clear water reuse, the water resource in China is greatly saved.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of sewage disposal device, which is characterized in that the equipment includes：
Pretreatment unit (1)：The pretreatment unit (1) is for being filtered and precipitating to treatment sewage, described in removal
Suspended matter in treatment sewage；
Denitrogenation dephosphorizing unit (2)：The denitrogenation dephosphorizing unit (2) connect with the pretreatment unit (1), and the denitrogenation removes
Phosphorus unit (2) includes anaerobic pond (4), anoxic pond (5) and aerobic tank (6), the anaerobic pond (4), the anoxic pond (5) and described
Aerobic tank (6) is sequentially connected, so that sewage after pretreatment passes sequentially through the anaerobic pond (4), the anoxic pond (5) and institute
It states aerobic tank (6) and carries out denitrogenation dephosphorizing processing；
Mud-water separation unit (3)：The mud-water separation unit (3) connect with the denitrogenation dephosphorizing unit (2), and the muddy water
Separative unit (3) carries out mud-water separation to the mixed liquor that the aerobic tank (6) is discharged using MBR film sewage treatment device.
2. sewage disposal device according to claim 1, which is characterized in that the pretreatment unit (1) includes grid
(13), primary sedimentation tank (14) and hair filter (15), wherein
The grid (13) connect with the water inlet end for the treatment of sewage, the grid (13), the primary sedimentation tank (14) and the hair
Hair filter (15) is sequentially connected,
The grid (13) includes at least two-stage grid, and the decreasing pore size of grid at different levels,
The suspended material in treatment sewage to be filtered for multiple times by at least two-stage grid, and by described just heavy
Inorganic matter and hair in pond (14) and hair filter (15) removal treatment sewage.
3. sewage disposal device according to claim 2, which is characterized in that the denitrogenation dephosphorizing unit (2) further includes
One solid-liquid separation unit (7), the second solid-liquid separation unit (8), reaction tank (9), chemical precipitation pond (10) and nitrification tank (11),
In,
First solid-liquid separation unit (7) is set to the anoxic pond (5) front end, and second solid-liquid separation unit (8) sets
It is placed in the anoxic pond (5) rear end, the reaction tank (9), the chemical precipitation pond (10) and the nitrification tank (11) are located at institute
The top of anoxic pond (5) is stated, and before the reaction tank (9) and the chemical precipitation pond (10) are located at the nitrification tank (11)
End,
It is separated so that first solid-liquid separation unit (7) will be imported through the anaerobic pond (4) treated mixed liquor, and will
10~20% supernatant imports the reaction tank (9) after separation, and remaining supernatant enters in the nitrification tank (11), after separation
Mud mixture import in the anoxic pond (5)；
Into the supernatant of the reaction tank (9), dephosphorization processing is carried out by the way that Dephosphorization reagent is added into the reaction tank (9),
Precipitation process is carried out by the chemical precipitation pond (10) again, and supernatant is imported in the nitrification tank (11), chemical sludge
It is taken away by sludge pump；
Second solid-liquid separation unit (8) will be imported through the anoxic pond (5) treated mixed liquor to separate, and will point
Supernatant from after imports in the nitrification tank (11), and the mud mixture after separation is fallen after rise under the effect of gravity to the anoxic
Pond (5).
4. sewage disposal device according to claim 3, which is characterized in that the nitrification tank (11) includes the first nitrification tank
(16), the second nitrification tank (17) and third nitrification tank (18), and first nitrification tank (16) is located at the third nitrification tank
(18) left side, second nitrification tank (17) are located on the upside of the third nitrification tank (18),
First solid-liquid separation unit (7) and second solid-liquid separation unit (8) import upper in the nitrification tank (11)
Clear liquid, which is introduced into first nitrification tank (16), completes level-one nitrification, then sequentially enters second nitrification tank (17) and described
Third nitrification tank (18) completes second level nitrification and three-level nitrification, and nitrifies generation nitrification liquid and enter the anoxic pond (5), described
The mixed liquor of anoxic pond (5) enters the aerobic tank (6) and further nitrifies.
5. sewage disposal device according to claim 4, which is characterized in that the anaerobic pond (4), the anoxic pond (5)
The floating stuffing of different filling rates is added respectively with the aerobic tank (6), and controls treatment sewage in the anaerobic pond
(4), the anoxic pond (5), the aerobic tank (6) stop 0.5~1 hour, 0.5~2 hour and 3~5 hours respectively, to pass through
The anaerobic pond (4), the anoxic pond (5), the activated sludge to suspend in the aerobic tank (6) and it is attached to the floating stuffing
On biomembrane removing sewage in organic matter, ammonia nitrogen and phosphorus.
6. sewage disposal device according to claim 5, which is characterized in that the anaerobic pond (4) added is to carry
The floating stuffing of polyP bacteria, and the filling rate of the floating stuffing for carrying polyP bacteria accounts for the anaerobic pond (4) and effectively holds
Long-pending 10~20%；
What the anoxic pond (5) added is to carry the floating stuffing of denitrifying bacterium, and described carry the outstanding of denitrifying bacterium
The filling rate of floating filler accounts for the 20~30% of the anoxic pond (5) dischargeable capacity；
What the aerobic tank (6) added is to carry the floating stuffing of nitrifier, and the suspension for carrying nitrifier is filled out
The filling rate of material accounts for the 30~50% of the aerobic tank (6) dischargeable capacity.
7. sewage disposal device according to one of claims 1 to 6, which is characterized in that mud-water separation unit (3) packet
Include MBR film case (20), filtered water tank (19) and backwash water tank (21), wherein
Hollow fiber film assembly (22) are equipped in the MBR film case (20), the hollow fiber film assembly (22) and the clear water
Between case (19) by pipeline be connected to, will through the hollow fiber film assembly (22) treated produce water be delivered to the clear water
In case (19), it is connected between the backwash water tank (21) and the hollow fiber film assembly (22) by pipeline, it will be described
The water stored in backwash water tank (21) is delivered in the hollow fiber film assembly (22)；Wherein,
The hollow fiber film assembly (22) includes multiple hollow fibre membrane components (35) being set parallel to each other, the hollow fibre
Tieing up membrane component (35) includes putamina (39) and film wire (40), and the one side contacted on the putamina (39) with the film wire (40) is equipped with
Groove (41), the groove (41) is interior to be provided with adhesive-layer, will with the bonding by the film wire (40) and the adhesive-layer
Film wire (40) fixation is encapsulated in the putamina (39)；
The side of the cabinet (30) of the MBR film case (20) is equipped with water inlet pipe (31), and the top surface of the cabinet (30) is equipped with
Outlet pipe (34), and separation net (32) are installed above the water inlet pipe (31), the top installation of the separation net (32)
There is the aeration tube (33) through the cabinet (30) two sidewalls；
The aeration tube (33) is bilateral air inlet pipe, and the aeration tube (33) upper end is provided with tubaeform aeration opening (42),
The quantity of the aeration opening (42) is no less than the quantity of the hollow fibre membrane component (35), so that the hollow fibre membrane component
(35) one end is connect by the aeration opening (42) with the aeration tube (33), is provided with water outlet on the outlet pipe (34)
(38), the quantity of the water outlet (38) is no less than the quantity of the hollow fibre membrane component (35), and the water outlet (38) is
It is tubaeform, so that the other end of the hollow fibre membrane component (35) is connected by the water outlet (38) and the outlet pipe (34)
It connects.
8. sewage disposal device according to claim 7, which is characterized in that the row of being additionally provided in the MBR film case (20)
Cabinet (30) bottom of dirt pipe (36), the MBR film case (20) is pyramidal structure, and the sewage pipe (36) is set to the taper
The apex of structure, wherein
One end of the sewage pipe (36) is sewage draining exit (37), and the sewage draining exit (37) is set as and the cabinet (30) bottom
The sewage draining exit (37) is installed at the pyramidal structure of the cabinet (30) bottom by the structure that portion's pyramidal structure matches,
The other end of the sewage pipe (36) is stretched out via the bottom of the cabinet (30).
9. sewage disposal device according to claim 8, which is characterized in that the mud-water separation unit (3) further includes liquid
Position meter (29) and PLC control device, the liquidometer (29) are set in the MBR film case (20) and control with the PLC and fill
Connection is set,
Be sequentially connected in series between the outlet pipe (34) and the filtered water tank (19) the first production water valve (23), water pump (24) and
Second produces water valve (25), has been sequentially connected in series the first backwash between the backwash water tank (21) and the water inlet pipe (31)
Valve (26), water pump (24) and the second backwash valve (27),
It is described first produce water valve (23), the water pump (24), it is described second produce water valve (25), first backwash valve (26) and
Second backwash valve (27) connect with the PLC control device,
So that the data control described first that the PLC control device is based on the liquidometer (29) monitoring produces water valve (23), institute
The second production water valve (25), first backwash valve (26) and/or second backwash valve (27) is stated to open or close, it will
Through the hollow fiber film assembly (22), treated produces water and be delivered in the filtered water tank (19), or by the backwash
The water stored in water tank (21) is delivered in the hollow fiber film assembly (22).
10. a kind of sewage water treatment method using sewage disposal device described in one of claim 1~9, which is characterized in that including
Following steps：
Pretreatment：Treatment sewage is imported into pretreatment unit (1), and filtering and place of settling are completed by pretreatment unit (1)
Reason removes the suspended matter in treatment sewage；
Denitrogenation dephosphorizing：Pretreated sewage is imported into anaerobic pond (4), sewage separates the dirt of reflux with mud-water separation unit (3)
Mud mixing, treatment sewage complete preliminary dephosphorization under the action of carrying polyP bacteria floating stuffing in anaerobic pond (4), and will place
Mixed liquor after reason imports in the first solid-liquid separation unit (7), the supernatant generated after the first solid-liquid separation unit (7) separation,
10~20% import reaction tank (9), and remaining supernatant enters in nitrification tank (11), and the mud mixture after separation imports anoxic pond
(5) in；
Into the supernatant of reaction tank (9), secondary dephosphorization processing is carried out by the way that Dephosphorization reagent is added into reaction tank (9), then lead to
It crosses chemical precipitation pond (10) and carries out precipitation process, and supernatant is imported in nitrification tank (11), chemical sludge passes through sludge pumping
It walks；
Mixture into anoxic pond (5), the nitrification liquid generated with nitrification tank (11) mix, and carry in anoxic pond (5)
Preliminary denitrogenation is completed under the action of denitrifying bacterium floating stuffing, and mixed liquor imports the second solid-liquid separation unit by treated
(8) in, the supernatant generated after the second solid-liquid separation unit (8) separation is imported in nitrification tank (11), the muddy water mixing after separation
Object is fallen after rise under the effect of gravity to anoxic pond (5)；
First solid-liquid separation unit (7) and the second solid-liquid separation unit (8) import the supernatant in nitrification tank (11) in aeration shape
It by ammonium oxidation is nitrate nitrogen by the filler that is placed in nitrification tank (11), nitrification liquid enters anoxic pond through power drive under state
(5) in；
Mixed liquor through anoxic pond (5) processing imports aerobic tank (6), and under aeration state, mixed liquor polyP bacteria carries out three herein
Secondary dephosphorization, and ammonium oxidation is again nitre by mixed liquor carries nitrifier floating stuffing in the aerobic tank (5) under the action of
State nitrogen；
Mud-water separation：Aerobic tank (6) discharge mixed liquor by water inlet pipe (31) enter cabinet (30) bottom, from bottom to top by every
The suspended matter in sewage is isolated in off-network (32), passes through after suspended matter precipitating and is discharged by sewage pipe (36), after separation net (32) isolation
Sewage in the hollow fiber film assembly (22) purification be clear water, and the clear water generated is evacuated to filtered water tank through outlet pipe (34)
(19) in；
When data or hollow fibre membrane component (35) based on liquidometer (29) detection block, water tank will be backwashed
(21) clear water in is evacuated to for washing hollow-fiber membrane component (35) in MBR film case (20), so that hollow fibre membrane component
(35) restore detergent power again.
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| CN201810859697.6A CN108821517A (en) | 2018-07-31 | 2018-07-31 | A kind of sewage disposal device and its processing method |
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| CN111252932A (en) * | 2018-11-30 | 2020-06-09 | 广州中国科学院先进技术研究所 | Membrane absorption deamination method and system based on direct contact type micropore aeration reinforcement |
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| CN111252932A (en) * | 2018-11-30 | 2020-06-09 | 广州中国科学院先进技术研究所 | Membrane absorption deamination method and system based on direct contact type micropore aeration reinforcement |
| CN111252932B (en) * | 2018-11-30 | 2022-07-05 | 广州中国科学院先进技术研究所 | Membrane absorption deamination method and system based on direct contact type micropore aeration reinforcement |
| CN109534611A (en) * | 2018-12-21 | 2019-03-29 | 广东尚骏科技有限公司 | Integrated sewage disposal equipment for reclaiming with pretreatment pool |
| CN112759078A (en) * | 2020-12-16 | 2021-05-07 | 碧水源膜技术研究中心(北京)有限公司 | Integrated sewage treatment device and method |
| CN112592001A (en) * | 2020-12-28 | 2021-04-02 | 马鞍山奥柯环保科技发展有限公司 | Treatment facility suitable for rural domestic sewage |
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Application publication date: 20181116 |