CN109607785A - A method of it is recycled from A2/O system by-pass flow phosphorus - Google Patents
A method of it is recycled from A2/O system by-pass flow phosphorus Download PDFInfo
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- CN109607785A CN109607785A CN201811563537.3A CN201811563537A CN109607785A CN 109607785 A CN109607785 A CN 109607785A CN 201811563537 A CN201811563537 A CN 201811563537A CN 109607785 A CN109607785 A CN 109607785A
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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
- C02F3/308—Biological phosphorus removal
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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
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus 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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/22—O2
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/40—Liquid flow rate
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- Environmental & Geological Engineering (AREA)
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- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention belongs to technical field of sewage, it is desirable to provide a method of phosphorus recycling is carried out from A2/O system side, this method is realized by A2/O technique by-pass flow system.Sewage is after anaerobic pond sufficiently releases phosphorus in A2/O system, part release phosphorus muddy water mixed solution enter by-pass flow system by booster pump progress flow adjusting, it is pumped into the first operation pressure of by-pass flow formula hydrocyclone and carries out the quick mud-water separation of high speed desliming realization, phosphorus thickened sludge of releasing after separation is back to anaerobic pond through reflux pump, rich phosphorus supernatant, which enters after intermediate water tank, is pumped into by-pass flow the second technique fluidized bed phosphorus crystallization reactor through water inlet, and Mg is added in fluidized-bed reactor2+Crystalline environment is adjusted with alkali salt and carries out ammoniomagnesium phosphate crystal reaction, and recycling is carried out to crystallized product and achievees the purpose that recycle phosphorus, the without phosphorus supernatant after crystallization reaction is back to anoxic pond and reenters A2/O system response；Increase by-pass flow system on the basis of not influencing mainstream A2/O technique, guarantees that municipal sewage stablizes denitrogenation, realization efficiently removes and recycles phosphorus.
Description
Technical field
The invention belongs to water-treatment technology field, it is related to a kind of method recycled from A2O system by-pass flow phosphorus, more particularly to other
The method that stream technique removes and recycles P elements.
Background technique
A2/O technique is one of the synchronous denitrogen dephosphorus technology that wastewater treatment in China factory is most widely used at this stage, the work
Skill is traditional activated sludge process, biological nitrification and denitrification technique and Biological Phosphorus Removal Processes are comprehensive, realization synchronous denitrification dephosphorizing.
A2/O technique anti impulsion load is stronger, and hydraulic detention time is short, and anaerobism, anoxic, aerobic alternate run are not susceptible to
Sludge bulking, and do not need to add medicament, operational and administrative expenses is low.But nitrate content mistake in the returned sludge of aerobic section
Height, limitation polyP bacteria sufficiently release the effect of phosphorus, seriously affect the suction phosphorus efficiency of aerobic section, and system sludge age is by various micro-
The limitation of biology, is unable to satisfy the best growing condition of all microorganisms, is difficult to further increase the effect of system denitrogenation dephosphorizing,
In addition to this, the processing method of disposal of rich phosphorous sludge is also a great problem.
Phosphorus is a kind of non-renewable resources, but global phosphor resource total amount is increasingly deficient.On the one hand, the excessive row of Phosphorus From Wastewater
It puts and is easy to cause water eutrophication, threat is generated to water environment safety and drinking water safety.On the other hand, contained in waste water
If phosphorus can effectively be recycled, the increasingly short problem of phosphor resource can be alleviated to a certain extent.Simple dephosphorization is
Through being difficult to meet production and living demand, realize that effective phosphorus recycling is only the main trend developed in the future while dephosphorization.
Summary of the invention
The present invention for A2/O technique due to denitrogenation dephosphorizing sludge age contradiction, dissolved oxygen and nitrate nitrogen restriction caused by
The limited problem of phosphor-removing effect provides a kind of method recycled from A2/O system by-pass flow phosphorus, removes and return from by-pass flow system high efficiency
Receive phosphor resource.
The purpose of the invention is achieved by the following technical solution:
A method of it is recycled from A2/O system by-pass flow phosphorus, the prevailing technology of this method is A2/O technique, and by-pass flow system is A2/O
It is added before anoxic pond after anaerobic pond, the quick muddy water point constructed including the first technique of by-pass flow by pressure type hydrocyclone
From the efficient crystallization phosphorus recovery technology that technology, intermediate water tank and the second technique of by-pass flow are constructed by fluidized bed crystallization reactor,
Be characterized in that: sewage sufficiently releases phosphorus after the anaerobic pond with agitating device in A2/O system, partially releases phosphorus muddy water mixed solution
It is pumped into pressure type hydrocyclone after carrying out flow adjusting into by-pass flow system and by the booster pump with frequency converter, pressure
Formula hydrocyclone enters high speed desliming state and realizes quick mud-water separation, and the phosphorus thickened sludge of releasing after mud-water separation is returned through sludge
Stream blowback flow to anaerobic pond, and rich phosphorus supernatant, which enters after intermediate water tank, is pumped into fluidized bed crystallization reactor through water inlet, is fluidizing
Mg2+ is added in bed reactor and alkali salt realizes ammoniomagnesium phosphate crystal reaction, and crystallized product is recycled and is reached after natural air drying
To the purpose for removing and recycling P elements, the without phosphorus supernatant after phosphorus crystallization reaction is back to anoxic pond and reenters mainstream
A2/O system continues to react, and aerobic tank sets air compressor machine and is aerated, and strength control can be used in 2mg/l or so, secondary settling tank
Vertical sedimentation tank is precipitated.
A kind of method recycled from A2/O system by-pass flow phosphorus of the present invention, this method do not influence mainstream A2/O technique,
Desliming and phosphorus recovery operation are only carried out in by-pass flow system.
It is of the present invention that a large amount of phosphorus are discharged by polyP bacteria effect in A2/O anaerobic pond, make the concentration liter of phosphor in sewage
Height, anaerobic pond need to carry out abundant muddy water mixing with submersible sewage pump, and entire by-pass flow technique waste water is derived from releasing for A2/O anaerobic pond water outlet
Phosphorus muddy water mixed solution carries out mud-water separation to enter hydrocyclone in next step.
The water outlet of anaerobic pond of the present invention is that part enters by-pass flow technique, not completely into remaining sewage is in master
It is continued to run in stream A2/O technique, controls by-pass flow ratio 50% hereinafter, avoiding influencing the operation of A2/O prevailing technology.
Muddy water mixed solution after anaerobic pond water outlet of the present invention needs to carry out flow by the booster pump with frequency converter
Pressure type hydrocyclone is pumped into after adjusting, pressure type hydrocyclone is later stage independent research.
Phosphorus thickened sludge of releasing after mud-water separation of the present invention is back to anaerobic pond through sludge reflux pump, only rich phosphorus
Supernatant continues the second process efficient of by-pass flow crystallization phosphorus recovery technology.
It needs to enter intermediate water tank stop after pressure type hydrocyclone water outlet of the present invention, according to fluidized-bed reactor
Reactor is pumped into water inlet after required hydraulic detention time regulation.
The magnesium salts added in fluidized-bed reactor of the present invention is magnesium chloride and/or magnesium sulfate, and the alkali salt added is
Sodium hydroxide, it is therefore an objective to which adjusting pH value is that crystallization reaction creates alkaline environment.
What the present invention realized has the beneficial effect that
The present invention increases parallel seismic method system by the improvement to A2/O technique, combines pressure type hydrocyclone, fluidisation
The advantages of bed crystallization reactor, on the basis of not influencing A2/O prevailing technology and removing other pollutants, by adding by-pass flow system
System phosphorus reclaimer improves the efficiency of sewage dephosphorization, and recycling phosphor resource solves the problems, such as part phosphor resource shortage, and reduces and contain
Phosphorus sludge discharges the harm to environment, has preferable application value.
The present invention has the advantage that are as follows:
Operating condition can be adjusted at any time according to different demands, including hydrocyclone flow of inlet water, fluidized-bed reactor waterpower are stopped
Stay time etc..By by-pass flow technique, A2/O anaerobic environment sludge activity can be improved, while by-pass flow high efficiente callback phosphorus, mention
The treatment effect for rising nitrogen, makes effluent quality be further improved, forms new and effective process flow, for practical application in the future
Important models parameter is provided.
Detailed description of the invention
A kind of position Fig. 1 method and process flow chart recycled from A2/O system by-pass flow phosphorus of the present invention.
Specific embodiment
Below with reference to example, the present invention is described in further detail, and embodiments of the present invention are not limited thereto.
Tentatively first start A2/O processing system, sludge of sewage treatment plant is taken to be inoculated with, takes continuous bored exposure circulation water inlet
Mode culture sludge in microorganism.After A2/O starts successfully, by-pass flow system is connected, can be used to handle real life dirt
Water.Sanitary sewage, which through wriggling pump water inlet to anaerobic pond, in anaerobic pond sets submersible sewage pump, to be served and is stirred, and is filled after hydraulic retention
Divide and release phosphorus, 50% muddy water mixed solution below of pumping enters by-pass flow system after carrying out flow adjusting by the booster pump with frequency converter.It is other
Streaming system takes intermittent duty, such as operation 2 hours, stops 2 hours.By pressure type hydrocyclone high speed rotation muddy water point
From rear, release phosphorus thickened sludge and be back to anaerobic pond and continue to promote to release phosphorus, it is suitable for fluidisation that rich phosphorus supernatant, which enters intermediate water tank to adjust,
The hydraulic detention time of bed crystallization reactor, such as 1 hour.NAOH is added in fluidized-bed reactor creates alkaline condition, then
It adds magnesium salts and realizes that ammoniomagnesium phosphate crystal reaction response recycles simultaneously crystallized product after reaching hydraulic detention time 1 hour
Natural air drying, without phosphorus supernatant are back to anoxic pond and continue A2/O reaction.Aerobic tank sets air compressor machine and is aerated, intensity control
System is in 2mg/l or so, and secondary settling tank can be used vertical sedimentation tank and be precipitated, and this method does not influence mainstream A2/O technique, only on side
Desliming and phosphorus recovery operation are carried out in streaming system.
The operation of various working may be implemented in the method, by controlling flow of inlet water, frequency converter, aeration quantity size and magnesium
The processing of salt dosage realization multiple-quality water.
Numerical value mentioned by the present invention only has the meaning of directiveness, as long as having used in practical applications of the present invention
The operation method of process, i.e., should be within protection scope of the present invention.
Claims (7)
1. a kind of method recycled from A2/O system by-pass flow phosphorus, the prevailing technology of this method is A2/O technique, and by-pass flow system is A2/
It is added before anoxic pond after O anaerobic pond, the quick muddy water constructed including the first technique of by-pass flow by pressure type hydrocyclone
The efficient crystallization phosphorus recovery technology that isolation technics, intermediate water tank and the second technique of by-pass flow are constructed by fluidized bed crystallization reactor,
It is characterized by: sewage sufficiently releases phosphorus after the anaerobic pond with agitating device in A2/O system, the mixing of phosphorus muddy water is partially released
Liquid enters by-pass flow system and is pumped into pressure type hydrocyclone after carrying out flow adjusting by the booster pump with frequency converter, pressure
Power formula hydrocyclone enters high speed desliming state and realizes quick mud-water separation, releases phosphorus thickened sludge through sludge after mud-water separation
Reflux pump is back to anaerobic pond, and rich phosphorus supernatant, which enters after intermediate water tank, is pumped into fluidized bed crystallization reactor through water inlet, is flowing
Mg is added in fluidized bed reactor2+Ammoniomagnesium phosphate crystal reaction is realized with alkali salt, crystallized product recycle and after natural air drying
Achieve the purpose that removal and recycle P elements, the without phosphorus supernatant after phosphorus crystallization reaction is back to anoxic pond and reenters master
Stream A2/O system continues to react.
2. the method according to claim 1 recycled from A2/O system by-pass flow phosphorus, it is characterised in that do not influence mainstream A2/O
Technique only carries out desliming and phosphorus recovery operation in by-pass flow system.
3. the method according to claim 1 recycled from A2/O system by-pass flow phosphorus, it is characterised in that entire by-pass flow Waste
Water is derived from the water outlet of A2/O anaerobic pond.
4. the method according to claim 1 recycled from A2/O system by-pass flow phosphorus, it is characterised in that the anaerobism of A2/O technique
Pond needs to carry out abundant muddy water mixing with submersible sewage pump, carries out mud-water separation to enter hydrocyclone in next step.
5. the method according to claim 1 recycled from A2/O system by-pass flow phosphorus, it is characterised in that the water outlet of anaerobic pond is
Part enters by-pass flow technique, controls by-pass flow ratio 50% hereinafter, avoiding influencing the operation of A2/O prevailing technology.
6. the method according to claim 1 recycled from A2/O system by-pass flow phosphorus, it is characterised in that after anaerobic pond water outlet
Muddy water mixed solution needs to be pumped into pressure type hydrocyclone after carrying out flow adjusting by the booster pump with frequency converter.
7. the method according to claim 1 recycled from A2/O system by-pass flow phosphorus, it is characterised in that pressure type hydraulic cyclone
It needs to enter intermediate water tank after device water outlet, be pumped into instead after the regulation of the hydraulic detention time according to needed for fluidized-bed reactor with water inlet
Answer device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811563537.3A CN109607785A (en) | 2018-12-20 | 2018-12-20 | A method of it is recycled from A2/O system by-pass flow phosphorus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811563537.3A CN109607785A (en) | 2018-12-20 | 2018-12-20 | A method of it is recycled from A2/O system by-pass flow phosphorus |
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| CN109607785A true CN109607785A (en) | 2019-04-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110642459A (en) * | 2019-09-19 | 2020-01-03 | 济南大学 | Combined pollution-removing process of ferrate and A/O biological filter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101381184A (en) * | 2008-06-06 | 2009-03-11 | 北京桑德环保集团有限公司 | Sewage disposal system with biological phosphorus removal and chemical phosphorus removal bypass and disposal method |
| CN101544453A (en) * | 2009-05-07 | 2009-09-30 | 重庆大学 | Dephosphorization and denitrification, mud decrement and phosphorus recovery integrated sewage treatment device and method thereof |
| CN101746929A (en) * | 2009-12-30 | 2010-06-23 | 中环（中国）工程有限公司 | Optimizing and designing method of AAO process aeration amount |
| CN101792236A (en) * | 2010-03-29 | 2010-08-04 | 重庆大学 | Sewage treatment method |
| CN102964032A (en) * | 2012-11-23 | 2013-03-13 | 北京市可持续发展促进会 | Device and method for bypass phosphorus recovery of town sewage treatment plant |
-
2018
- 2018-12-20 CN CN201811563537.3A patent/CN109607785A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101381184A (en) * | 2008-06-06 | 2009-03-11 | 北京桑德环保集团有限公司 | Sewage disposal system with biological phosphorus removal and chemical phosphorus removal bypass and disposal method |
| CN101544453A (en) * | 2009-05-07 | 2009-09-30 | 重庆大学 | Dephosphorization and denitrification, mud decrement and phosphorus recovery integrated sewage treatment device and method thereof |
| CN101746929A (en) * | 2009-12-30 | 2010-06-23 | 中环（中国）工程有限公司 | Optimizing and designing method of AAO process aeration amount |
| CN101792236A (en) * | 2010-03-29 | 2010-08-04 | 重庆大学 | Sewage treatment method |
| CN102964032A (en) * | 2012-11-23 | 2013-03-13 | 北京市可持续发展促进会 | Device and method for bypass phosphorus recovery of town sewage treatment plant |
Non-Patent Citations (1)
| Title |
|---|
| 申童童: "基于侧流化学回收磷的A2/O工艺污泥回流位点对系统效能影响研究", 《工程科技Ⅰ辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110642459A (en) * | 2019-09-19 | 2020-01-03 | 济南大学 | Combined pollution-removing process of ferrate and A/O biological filter |
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Application publication date: 20190412 |