CN108928921A - Waste water treatment system and wastewater treatment method - Google Patents
Waste water treatment system and wastewater treatment method Download PDFInfo
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- CN108928921A CN108928921A CN201810725248.2A CN201810725248A CN108928921A CN 108928921 A CN108928921 A CN 108928921A CN 201810725248 A CN201810725248 A CN 201810725248A CN 108928921 A CN108928921 A CN 108928921A
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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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- 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
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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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
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
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Abstract
The embodiment of the present disclosure discloses waste water treatment system and wastewater treatment method.The waste water treatment system includes: anoxic treatment system comprising anoxic biochemistry pool carries out anoxic biochemical treatment to waste water in the anoxic biochemistry pool；Aerobic and hyperfiltration treatment system comprising aerobic biochemical pool carries out aerobic treatment to the waste water injection purity oxygen through anoxic biochemical treatment in the aerobic biochemical pool, and carries out hyperfiltration treatment to the waste water through aerobic treatment.It can effectively improve sludge activity according to the waste water treatment system of the embodiment of the present disclosure and wastewater treatment method, avoid generating sludge foam, reduction plant maintenance amount, reduction mechanicalness noise, control power consumption.Moreover, hyperfiltration treatment part is integrated in aerobic part according to the waste water treatment system of the embodiment of the present disclosure, has the advantages that saving land occupation, easy to operate, low energy consumption, cleaning is thorough and the service life is long.
Description
Technical field
This disclosure relates to water treatment field, especially waste water treatment system and wastewater treatment method.
Background technique
The world today, facing mankind water scarcity and water pollution the problem of getting worse.Therefore, water process skill
Art, especially wastewater processing technology, just become more and more important.
In current wastewater processing technology, the processing technique of landfill leachate is extremely important.Moreover, to landfill leachate
Efficient process be always a problem.Landfill leachate has pollutant concentration high, complicated component and the characteristics such as poisonous and harmful,
Requiring high and processing cost costly processing technique simultaneously is also its outstanding feature.Just because of the above characteristic, repeatedly occurs
It administers enterprise and steals the environmentally friendly event arranged and fallen steathily etc. badly for save the cost.
The typical treatment process of landfill leachate is to denitrogenate carbonization treatment technique at present, is by " anoxic microbiological treatment+good
Oxygen animalcule processing+tubular type ultrafiltration " three parts composition, the technology have technology maturation, run smoothly and effluent quality
The features such as stablizing.But " jet pump+air blower+ejector combination " aerating system that the technology uses, it will lead to biology
Sludge solution is wadded a quilt with cotton in treatment process, and then forms a large amount of sludge foams in aerobic biochemical pool, is seriously affected system operation and is caused ring
Border influences；Simultaneously because table of equipment tricks is more, lead to a series of problems, such as system maintenance maintenance is big, energy consumption is high and noise is big.
Summary of the invention
(1) technical problems to be solved
To solve the above problem in the prior art, present disclose provides waste water treatment system and wastewater treatment methods.
(2) technical solution
According to the first aspect of the embodiments of the present disclosure, a kind of waste water treatment system is provided, comprising:
Anoxic treatment system comprising anoxic biochemistry pool carries out at anoxic biochemistry waste water in the anoxic biochemistry pool
Reason；
Aerobic and hyperfiltration treatment system comprising aerobic biochemical pool, at through anoxic biochemistry in the aerobic biochemical pool
The waste water injection purity oxygen of reason carries out aerobic treatment, and carries out hyperfiltration treatment to the waste water through aerobic treatment.
According to the second aspect of an embodiment of the present disclosure, described aerobic and hyperfiltration treatment system includes:
It is oxygenated subsystem, for pure oxygen to be injected to the waste water through anoxic biochemical treatment in the aerobic biochemical pool；
Ultrafiltration membrane pool subsystem has the membrane cisterna being located in the aerobic biochemical pool and the ultrafiltration in the membrane cisterna
Film, the ultrafiltration membrane carry out hyperfiltration treatment to the waste water through aerobic treatment.
According to the third aspect of an embodiment of the present disclosure, the oxygenation subsystem includes:
Pure oxygen feeding mechanism, for supplying pure oxygen；
Mechanical oxygenate apparatus, for mechanically injecting pure oxygen in the aerobic biochemical pool through anoxic biochemical treatment
Waste water, and be stirred.
According to a fourth aspect of embodiments of the present disclosure, institute's ultrafiltration membrane is hollow fiber ultrafiltration membrane or organic plate membrane.
According to a fifth aspect of the embodiments of the present disclosure, the ultrafiltration membrane pool subsystem includes:
Air aeration swab is set in the membrane cisterna, is put for biochemistry of the stripping in aerobic biochemical pool
The carbon dioxide of heat and accumulation.
According to a sixth aspect of an embodiment of the present disclosure, aforementioned system further include:
Nitrification liquid and sludge recirculation system connect the membrane cisterna and the anoxic biochemistry pool, for producing the membrane cisterna
The mixed liquor of nitrification liquid and sludge out is back to the anoxic biochemistry pool.
In terms of the 7th of the embodiment of the present disclosure the, the system also includes:
Excess sludge exhaust system flows back the nitrification liquid and sludge recirculation system the mixing of the nitrification liquid and sludge
Excess sludge discharge after liquid.
According to the eighth aspect of the embodiment of the present disclosure, the excess sludge is arranged by the nitrification liquid and sludge recirculation system
To the excess sludge exhaust system.
According to the 9th of embodiment of the present disclosure aspect, provide a kind of waste water treatment system, which is characterized in that including chemistry from
The waste water treatment system according to a sixth aspect of an embodiment of the present disclosure of line cleaning system and two groups, wherein two groups according to this
The membrane cisterna of waste water treatment system described in 6th aspect of open embodiment is by being provided with the pipeline connection of coupling cock, and two
A nitrification liquid and sludge recirculation system by being provided with the pipeline connection of coupling cock,
Wherein, when the ultrafiltration membrane pond to one group of waste water treatment system according to a sixth aspect of an embodiment of the present disclosure
When system is cleaned, stop the water inlet of this group of waste water treatment system, and pass through two nitrification liquids and sludge reflux of connection
The nitrification liquid of membrane cisterna output of this group of waste water treatment system and the mixed liquor of sludge are back to another group of wastewater treatment system by system
The anoxic biochemistry pool of system, until the ultrafiltration membrane in the membrane cisterna of this group of waste water treatment system to be cleaned is completely exposed for being when cleaning
Only.
According to the tenth of the embodiment of the present disclosure the aspect, a kind of wastewater treatment method is provided, comprising:
Anoxic biochemical treatment is carried out to waste water in anoxic biochemistry pool；
Aerobic treatment is carried out to the waste water injection purity oxygen through anoxic biochemical treatment in aerobic biochemical pool, and right
Waste water through aerobic treatment carries out hyperfiltration treatment.
(3) beneficial effect
It can effectively improve sludge activity according to the waste water treatment system of the embodiment of the present disclosure and wastewater treatment method, avoid producing
Primary sludge foam reduces plant maintenance amount, reduces mechanicalness noise, control power consumption.Moreover, according to the useless of the embodiment of the present disclosure
Hyperfiltration treatment part is integrated in aerobic part by water treatment system, have saving land occupation, easy to operate, low energy consumption, cleaning it is thorough
The advantages that bottom and long service life.Had according to the waste water treatment system of the embodiment of the present disclosure for such as this height of new refuse percolate
The waste water of machine object and high ammonia-nitrogen wastewater etc, has that stable, easy to operate, easy to maintain, environmental-friendly and low energy consumption
Advantage.
Detailed description of the invention
Fig. 1 is the schematic block diagram according to the waste water treatment system of one embodiment of the disclosure.
Fig. 2 is according to the aerobic and hyperfiltration treatment system 102 in the waste water treatment system of the embodiment of the present disclosure shown in FIG. 1
One embodiment schematic block diagram.
Fig. 3 is the schematic block diagram according to the waste water treatment system of another embodiment of the disclosure.
Fig. 4 is an exemplary schematic block diagram of application according to the waste water treatment system of one embodiment of the disclosure.
Fig. 5 is an exemplary schematic block diagram of application according to the waste water treatment system of the another embodiment of the disclosure.
Fig. 6 is the schematic flow chart according to the wastewater treatment method of one embodiment of the disclosure.
Specific embodiment
Hereinafter, the illustrative embodiments of the disclosure will be described in detail with reference to the attached drawings, so that those skilled in the art can
Easily realize them.In addition, for the sake of clarity, the portion unrelated with description illustrative embodiments is omitted in the accompanying drawings
Point.
In the disclosure, it should be appreciated that the term of " comprising " or " having " etc. is intended to refer to disclosed in this specification
Feature, number, step, behavior, the presence of component, part or combinations thereof, and be not intended to exclude other one or more features,
A possibility that number, step, behavior, component, part or combinations thereof exist or are added.
It also should be noted that in the absence of conflict, the feature in embodiment and embodiment in the disclosure
It can be combined with each other.The disclosure is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.Exist for the technique of the relevant technologies
A series of problems existing for treatment process wants emphasis to grind according to the waste water treatment system of the embodiment of the present disclosure and wastewater treatment method
Study carefully aeration process, hyperfiltration technique and the wastewater processing technology that the two can be carried out efficient combination.
Fig. 1 is the schematic block diagram according to the waste water treatment system of one embodiment of the disclosure.Wastewater treatment system shown in FIG. 1
System 100 includes anoxic treatment system 101 and aerobic and hyperfiltration treatment system 102.
Anoxic treatment system 101 include anoxic biochemistry pool (not shown), in the anoxic biochemistry pool to waste water (into
Water) carry out anoxic biochemical treatment.Aerobic and hyperfiltration treatment system 102 includes aerobic biochemical pool (not shown), described good
Aerobic treatment carried out to the waste water injection purity oxygen through anoxic biochemical treatment in oxygen biochemistry pool, and at through aerobic biochemical
The waste water of reason carries out hyperfiltration treatment.Later, production water of the discharge after hyperfiltration treatment.
Compared with in the related technology using air to carry out aerobic treatment the case where, using pure oxygen to anoxic biochemistry at
The waste water of reason, which carries out aerobic treatment, can be effectively improved sludge activity, avoid generating sludge foam.
It is further noted that in embodiment of the disclosure, the part and the portion of hyperfiltration treatment of aerobic treatment
Point be combined together in aerobic biochemical pool, therefore land occupation can be saved, reduction plant maintenance amount, and it is easy to operate, low energy consumption,
Convenient for cleaning.Aerobic and hyperfiltration treatment system 102 is further illustrated referring to Fig. 2.
Fig. 2 is according to the aerobic and hyperfiltration treatment system 102 in the waste water treatment system of the embodiment of the present disclosure shown in FIG. 1
One embodiment schematic block diagram.As shown in Fig. 2, aerobic and hyperfiltration treatment system 102 includes oxygenation 1021 He of subsystem
Ultrafiltration membrane pool subsystem 1022.
Oxygenation subsystem 1021 is used to injecting pure oxygen into the waste water through anoxic biochemical treatment in the aerobic biochemical pool.
Ultrafiltration membrane pool subsystem 1022 has the membrane cisterna being located in the aerobic biochemical pool and surpassing in the membrane cisterna
Filter membrane, the ultrafiltration membrane carry out hyperfiltration treatment to the waste water through aerobic treatment.Using ultrafiltration membrane technique built in membrane cisterna, according to
The waste water treatment system of the embodiment of the present disclosure has that heap filling density is big, save land occupation, low energy consumption, does not block easy cleaning, maintenance letter
Single advantage.
In one embodiment, oxygenation subsystem 1021 may include: pure oxygen feeding mechanism and mechanical oxygenate apparatus.Pure oxygen
Feeding mechanism is for supplying pure oxygen.Mechanical oxygenate apparatus is for mechanically injecting pure oxygen in the aerobic biochemical pool through lacking
The waste water of oxygen biochemical treatment, and be stirred.
In one embodiment, pure oxygen feeding mechanism can be the oxygen storage tank from live oxygenerator or interior storage liquid oxygen,
It is oxygen that liquid oxygen needs gasification before entering mechanical oxygenate apparatus.
In one embodiment, the oxygen of gasification is filled with mechanical oxygenate apparatus by valve group and pipeline, valve group it is adjustable and
Oxygenation capacity is measured, and mechanical oxygenate apparatus can be high thrust low-speed mixer, oxygen is brought by flow action and lacked with warp
The waste water of oxygen biochemical treatment is sufficiently mixed.Using pure oxygen+machinery oxygenate apparatus combination technique, increase beneficial to zoogloea quantity and
Activated sludge concentration improves unit capacity.Meanwhile using high thrust low-speed machinery oxygenate apparatus, oxygen-transfer efficiency height, sludge
Foam is few, plant maintenance is simple, mechanicalness noise is low.
In one embodiment, ultrafiltration membrane can be hollow fiber ultrafiltration membrane or organic plate membrane.At one of the disclosure
In embodiment, ultrafiltration membrane can be placed in membrane cisterna, produce water using negative-pressure ward mode.In the related technology, MBR (membrane biological reaction
Device) ultrafiltration membrane generally uses tubular ultra-filtration membrane, needs high power high speed cross-flow, have that energy consumption is high, easily blocking, difficult cleaning and the service life is short
The disadvantages of.In the waste water treatment system according to the embodiment of the present disclosure, hollow fiber ultrafiltration membrane or organic plate membrane have energy consumption
The advantages that low, cleaning is thoroughly and the service life is long.
In one embodiment of the present disclosure, ultrafiltration membrane pool subsystem 1022 includes: air aeration swab.At one
In embodiment, air aeration swab is set in the membrane cisterna, for biochemical heat release of the stripping in aerobic biochemical pool
With the carbon dioxide of accumulation.
Fig. 3 is the schematic block diagram according to the waste water treatment system of another embodiment of the disclosure.
It in one embodiment, further include nitrification liquid and sludge reflux system according to the waste water treatment system of the embodiment of the present disclosure
System 103.
Nitrification liquid connect the membrane cisterna and the anoxic biochemistry pool with sludge recirculation system 103, for producing the membrane cisterna
The mixed liquor of nitrification liquid and sludge out is back to the anoxic biochemistry pool.
In one embodiment, membrane cisterna is placed in aerobic biochemical pool, the air aeration that large scale is arranged in membrane cisterna is wiped
Wash system, can biochemical heat release and accumulation of the stripping in biochemistry pool carbon dioxide.Nitrification liquid and mud mixed liquid are flowed back
Outlet is arranged in membrane cisterna, on the one hand brings the mixed liquor after stripping into anoxic biochemistry pool, reduces temperature and improves pH value；Another party
Membrane cisterna sludge concentration is effectively reduced in face, is more advantageous to the operation of built-in ultrafiltration membrane.
It in one embodiment of the present disclosure, further include excess sludge row according to the waste water treatment system of the embodiment of the present disclosure
Place system.
Excess sludge exhaust system flows back the nitrification liquid and sludge recirculation system the mixing of the nitrification liquid and sludge
Excess sludge discharge after liquid.Excess sludge exhaust outlet and nitrification liquid bypass outlet are shared, number of devices is reduced, simplifies fortune
Row operation；The excess sludge drains into the excess sludge exhaust system by the nitrification liquid and sludge recirculation system.
Referring to Fig. 4 description according to the application example of the waste water treatment system of the embodiment of the present disclosure.
Fig. 4 is an exemplary schematic block diagram of application according to the waste water treatment system of one embodiment of the disclosure.
The waste water treatment system of embodiment as shown in Figure 4 is a kind of pure oxygen MBR waste water treatment system.The system includes:
Anoxic biochemistry pool, that is, the pond biochemistry pool A carries out anoxic biochemical treatment to waste water in the anoxic biochemistry pool；
Aerobic and hyperfiltration treatment system comprising aerobic biochemical pool, that is, the pond biochemistry pool O and the film in the pond biochemistry pool O
Pond；Specifically, aerobic and hyperfiltration treatment system may include that pure oxygen utilizes system, mechanical oxygenating system, ultrafiltration membrane system, surpasses
Filter membrane cell system, nitrification liquid and sludge recirculation system, excess sludge exhaust system, chemical membrane off-line cleaning system.Below to aerobic
And each system in hyperfiltration treatment system is illustrated.
(1) pure oxygen utilizes system: pure oxygen can come from liquid oxygen in live oxygenerator or oxygen storage tank, fill into machinery
It is oxygen that gasification is needed before oxygen machine.
(2) mechanical oxygenating system: the oxygen after gasification is filled with mechanical oxygenating system by valve group and pipeline, and valve group is adjustable
With metering oxygenation capacity, mechanical aerating machine can be high thrust low-speed mixer, bring oxygen by flow action and sufficiently mixed
It closes.Using pure oxygen+machinery aerating machine combination technique, increases beneficial to zoogloea quantity and activated sludge concentration, improve processed in units
Ability；High thrust low-speed machinery aerating machine is used simultaneously, and oxygen-transfer efficiency is high, sludge foam is few, plant maintenance is simple, mechanicalness noise
It is low.
(3) ultrafiltration membrane system: organic plate membrane or hollow-fibre membrane are used, is placed in membrane cisterna, using negative-pressure ward mode
Produce water.Using built-in ultrafiltration membrane technique, heap filling density is big, save land occupation, low energy consumption, does not block easy cleaning, safeguards simply.
(4) ultrafiltration membrane pool system；Membrane cisterna is placed in the pond biochemistry pool O, the air aeration that large scale is arranged in membrane cisterna is wiped
Wash system.Ultrafiltration system has the advantages that saving land occupation, easy to operate, low energy consumption, cleaning is thorough and the service life is long.
(4) nitrification liquid and sludge recirculation system: nitrification liquid is back to the pond biochemistry pool A by membrane cisterna with mud mixed liquid.It will
Nitrification liquid and mud mixed liquid bypass outlet are arranged in membrane cisterna, on the one hand bring the mixed liquor after stripping into anoxic biochemistry pool,
It reduces temperature and improves pH value；On the other hand membrane cisterna sludge concentration is effectively reduced, is more advantageous to the operation of built-in ultrafiltration membrane.
(5) excess sludge exhaust system: the bypass outlet of excess sludge exhaust outlet and nitrification liquid and sludge recirculation system
It shares, periodically discharges excess sludge.In this way can, reduce number of devices, simplify operation operation.
The pure oxygen MBR waste water treatment system of embodiment illustrated in fig. 4, by pure oxygen+mechanical enhancement aeration process and it is built-in in
The combination techniques such as empty fiber membrane, have the advantage that
(1) due to having pure oxygen using system and mechanical oxygenating system, the pure oxygen MBR wastewater treatment of embodiment illustrated in fig. 4
System can effectively improve sludge activity, avoid generating sludge foam, reduce plant maintenance amount, reduce mechanicalness noise, control electric energy
The problems such as consumption and improvement ultrafiltration membrane running environment.
(2) due to having ultrafiltration membrane system and ultrafiltration membrane pool system, the pure oxygen MBR wastewater treatment system of embodiment illustrated in fig. 4
System has the advantages that saving land occupation, easy to operate, low energy consumption, cleaning is thorough and the service life is long.
(3) the pure oxygen MBR waste water treatment system of embodiment illustrated in fig. 4 for this high organic matter of new refuse percolate and
High ammonia-nitrogen wastewater has stable, easy to operate, easy to maintain, environmental-friendly and low power consumption and other advantages.
Illustrate a kind of waste water treatment system of cleaning easy to maintain based on aforementioned waste water treatment system referring to Fig. 5.
Fig. 5 is an exemplary schematic block diagram of application according to the waste water treatment system of the another embodiment of the disclosure.
The waste water treatment system of embodiment shown in fig. 5 may include two groups of waste water treatment systems as shown in Figure 4.
The waste water treatment system of embodiment shown in Fig. 5 includes the case where two groups of waste water treatment systems as shown in Figure 4
Under, which includes chemical membrane off-line cleaning system and two groups of waste water treatment systems as shown in Figure 4.
In the waste water treatment system of embodiment as shown in Figure 5, pure oxygen MBR waste water treatment system need to be arranged two groups, and two
Coupling cock is arranged by pipeline connection in membrane cisterna in group pure oxygen MBR waste water treatment system, and two nitrification liquids and sludge return
Simultaneously coupling cock is arranged in streaming system connection, when one group of pure oxygen MBR waste water treatment system cleans, stops at this group of pure oxygen MBR waste water
The water inlet of reason system, and membrane cisterna mixed liquor is discharged by the other side by nitrification liquid and the nitrification liquid reflux pump of sludge recirculation system and is being transported
That group of capable pure oxygen MBR waste water treatment system, until the ultrafiltration membrane for being completely exposed this group of MBR waste water treatment system, by medicine
Liquid squeezes into the elution of film wire progress from inside to outside by water producing pipe.
In addition, the waste water treatment system of embodiment shown in fig. 5 also may include two groups as shown in Figure 3 although being not shown
Waste water treatment system.In the case, which includes that chemical membrane off-line cleaning system and two groups are as shown in Figure 3
Waste water treatment system, wherein the membrane cisterna of two groups of waste water treatment systems as shown in Figure 3 is joined by being provided with the pipeline of coupling cock
It is logical, and two nitrification liquids and sludge recirculation system be by being provided with the pipeline connection of coupling cock,
Wherein, when the ultrafiltration membrane pool subsystem to one group of waste water treatment system as shown in Figure 3 cleans, stopping should
The water inlet of group waste water treatment system, and by two nitrification liquids of connection and sludge recirculation system by this group of waste water treatment system
The nitrification liquid of membrane cisterna output and the mixed liquor of sludge be back to the anoxic biochemistry pool of another group of waste water treatment system, until to clear
Until when ultrafiltration membrane in the membrane cisterna for this group of waste water treatment system washed is completely exposed for cleaning.
Referring to Fig. 6 description according to the wastewater treatment method of the embodiment of the present disclosure.
Fig. 6 is the schematic flow chart according to the wastewater treatment method of one embodiment of the disclosure.
The wastewater treatment method of embodiment as shown in FIG. 6 includes: step S601, is carried out in anoxic biochemistry pool to waste water
Anoxic biochemical treatment；Step S602 carries out the waste water injection purity oxygen through anoxic biochemical treatment in aerobic biochemical pool aerobic
Biochemical treatment, and hyperfiltration treatment is carried out to the waste water through aerobic treatment.
Optionally, in the wastewater treatment method of embodiment shown in Fig. 6, pure oxygen can be injected to the aerobic biochemical pool
The interior waste water through anoxic biochemical treatment；Membrane cisterna is arranged in the aerobic biochemical pool, ultrafiltration membrane is arranged in the membrane cisterna,
The ultrafiltration membrane carries out hyperfiltration treatment to the waste water through aerobic treatment.
Optionally, the wastewater treatment method of embodiment shown in fig. 6 further include: supply pure oxygen；Mechanically by pure oxygen
The waste water through anoxic biochemical treatment in the aerobic biochemical pool is injected, and is stirred.
Optionally, in the wastewater treatment method of embodiment shown in Fig. 6, institute's ultrafiltration membrane is hollow fiber ultrafiltration membrane or has
Machine plate membrane.
Optionally, it in the wastewater treatment method of embodiment shown in Fig. 6, is exposed using the air being set in the membrane cisterna
Gas swab, the carbon dioxide of biochemical heat release and accumulation of the stripping in aerobic biochemical pool.
Optionally, the wastewater treatment method of embodiment shown in fig. 6 further include: by the nitrification liquid of the membrane cisterna output and dirt
The mixed liquor of mud is back to anoxic biochemistry pool.
Optionally, the wastewater treatment method of embodiment shown in fig. 6 further include: by the reflux nitrification liquid and sludge
Mixed liquor after excess sludge discharge.
Optionally, in the wastewater treatment method of embodiment shown in Fig. 6, the excess sludge passes through nitrification liquid and sludge
Mixed liquor reflux outlet discharge.
It, can be using chemical membrane off-line cleaning system to two in the wastewater treatment method according to another embodiment of the disclosure
The waste water treatment system that group executes the wastewater treatment method of embodiment as shown in FIG. 6 is cleaned, wherein two groups of execution are as schemed
The membrane cisterna of the waste water treatment system of the wastewater treatment method of embodiment shown in 6 by being provided with the pipeline connection of coupling cock, and
And two nitrification liquids and sludge recirculation system be by being provided with the pipeline connection of coupling cock,
Wherein, when the ultrafiltration of the waste water treatment system of the wastewater treatment method to one group of execution embodiment as shown in FIG. 6
When membrane cisterna subsystem is cleaned, stop the water inlet of this group of waste water treatment system, and pass through two nitrification liquids of connection and dirt
The nitrification liquid of membrane cisterna output of this group of waste water treatment system and the mixed liquor of sludge are back to another group of waste water by mud return-flow system
The anoxic biochemistry pool of processing system, until the ultrafiltration membrane in the membrane cisterna of this group of waste water treatment system to be cleaned is completely exposed for clear
Until when washing.
According to the disclosure, the wastewater treatment method of embodiment shown in fig. 6 can be aforementioned referring to figs. 1 to the useless of 5 descriptions
It is used in water treatment system.
The waste water treatment system and wastewater treatment method of the embodiment of the present disclosure are by by pure oxygen, oxygenation aeration technology, aerobic
The technical combinations such as membrane cisterna built in pond, ultrafiltration membrane built in membrane cisterna, have following advantage:
(1) aerobic tank oxygenating system can effectively improve sludge activity, avoid generate sludge foam, reduce plant maintenance amount,
The problems such as reducing mechanicalness noise, control power consumption and improving ultrafiltration membrane running environment；
(2) ultrafiltration system has the advantages that saving land occupation, easy to operate, low energy consumption, cleaning is thorough and the service life is long；
(3) be directed to this high organic matter of new refuse percolate and high ammonia-nitrogen wastewater, have it is stable, easy to operate,
Easy to maintain, environment is good and low power consumption and other advantages.
The waste water treatment system and wastewater treatment method of the embodiment of the present disclosure are suitable for landfill leachate treatment industry, can also
Applied to wastewater from chemical industry, coking wastewater, dyeing waste water, pharmacy waste water and pulping wastewater treatment industry.
Particular embodiments described above, to the purpose of the embodiment of the present disclosure, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit the foregoing is merely the specific embodiment of the embodiment of the present disclosure
The disclosure processed, all within the spirit and principle of the embodiment of the present disclosure, any modification, equivalent substitution, improvement and etc. done should all
Within the protection scope of the embodiment of the present disclosure.
Claims (10)
1. a kind of waste water treatment system characterized by comprising
Anoxic treatment system comprising anoxic biochemistry pool carries out anoxic biochemical treatment to waste water in the anoxic biochemistry pool；
Aerobic and hyperfiltration treatment system comprising aerobic biochemical pool, to through anoxic biochemical treatment in the aerobic biochemical pool
Waste water injects purity oxygen and carries out aerobic treatment, and carries out hyperfiltration treatment to the waste water through aerobic treatment.
2. waste water treatment system according to claim 1, which is characterized in that described aerobic and hyperfiltration treatment system includes:
It is oxygenated subsystem, for pure oxygen to be injected to the waste water through anoxic biochemical treatment in the aerobic biochemical pool；
Ultrafiltration membrane pool subsystem has the membrane cisterna being located in the aerobic biochemical pool and the ultrafiltration membrane in the membrane cisterna,
The ultrafiltration membrane carries out hyperfiltration treatment to the waste water through aerobic treatment.
3. waste water treatment system according to claim 2, which is characterized in that the oxygenation subsystem includes:
Pure oxygen feeding mechanism, for supplying pure oxygen；
Mechanical oxygenate apparatus injects pure oxygen for mechanically useless through anoxic biochemical treatment in the aerobic biochemical pool
Water, and be stirred.
4. waste water treatment system according to claim 2, which is characterized in that institute's ultrafiltration membrane is hollow fiber ultrafiltration membrane or has
Machine plate membrane.
5. waste water treatment system according to claim 2, which is characterized in that the ultrafiltration membrane pool subsystem includes:
Air aeration swab is set in the membrane cisterna, for biochemical heat release of the stripping in aerobic biochemical pool and
The carbon dioxide of accumulation.
6. waste water treatment system according to claim 2, which is characterized in that further include:
Nitrification liquid and sludge recirculation system connect the membrane cisterna and the anoxic biochemistry pool, for by the membrane cisterna output
The mixed liquor of nitrification liquid and sludge is back to the anoxic biochemistry pool.
7. waste water treatment system according to claim 6, which is characterized in that further include:
Excess sludge exhaust system, after the mixed liquor of the nitrification liquid and sludge that the nitrification liquid and sludge recirculation system are flowed back
Excess sludge discharge.
8. waste water treatment system according to claim 7, which is characterized in that the excess sludge by the nitrification liquid with
Sludge recirculation system drains into the excess sludge exhaust system.
9. a kind of waste water treatment system, which is characterized in that as claimed in claim 6 including chemical membrane off-line cleaning system and two groups
Waste water treatment system, wherein the membrane cisterna of two groups of waste water treatment systems as claimed in claim 6 is by being provided with the pipe of coupling cock
Road connection, and two nitrification liquids and sludge recirculation system be by being provided with the pipeline connection of coupling cock,
Wherein, when the ultrafiltration membrane pool subsystem to one group of waste water treatment system as claimed in claim 6 cleans, stop
The water inlet of this group of waste water treatment system, and by two nitrification liquids of connection and sludge recirculation system by this group of wastewater treatment system
The nitrification liquid of membrane cisterna output and the mixed liquor of sludge of system are back to the anoxic biochemistry pool of another group of waste water treatment system, until to
Until when ultrafiltration membrane in the membrane cisterna of this group of waste water treatment system of cleaning is completely exposed for cleaning.
10. a kind of wastewater treatment method characterized by comprising
Anoxic biochemical treatment is carried out to waste water in anoxic biochemistry pool；
Aerobic treatment is carried out to the waste water injection purity oxygen through anoxic biochemical treatment in aerobic biochemical pool, and to through well
The waste water of oxygen biochemical treatment carries out hyperfiltration treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810725248.2A CN108928921A (en) | 2018-07-04 | 2018-07-04 | Waste water treatment system and wastewater treatment method |
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