CN109748389A - One kind crystallizing the pretreated quick mud-water separation method of anaerobic sludge for phosphorus in waste water - Google Patents
One kind crystallizing the pretreated quick mud-water separation method of anaerobic sludge for phosphorus in waste water Download PDFInfo
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- CN109748389A CN109748389A CN201910203047.0A CN201910203047A CN109748389A CN 109748389 A CN109748389 A CN 109748389A CN 201910203047 A CN201910203047 A CN 201910203047A CN 109748389 A CN109748389 A CN 109748389A
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Abstract
The invention discloses one kind to crystallize the pretreated quick mud-water separation method of anaerobic sludge for phosphorus in waste water, this method is to be desilted using the circulating eddy flow of pressure current, the equipment includes circulating cyclone feed inlet, circulation water inlet, the tapered main body of eddy flow, inside and outside double overflow mouth, underflow opening, interior circulation overflow catch basin, interior circulating outlet；Reaction closes underflow opening and outer overflow port valve before starting, anaerobic pond muddy water mixed solution is pumped into tapered main body from feed inlet with fixed flow rate by peristaltic pump, circulating outlet water outlet is pumped by variable frequency pump from cyclone circulation water inlet after tapered main body spill-over, anaerobic sludge opens underflow opening and outer overflow port valve after sufficiently releasing phosphorus, excessive outflux richness phosphorus supernatant enters fluidized bed crystallization reactor and carries out crystallizing-dephosphorizing reaction, and underflow outlet releases phosphorus sludge and is back to anaerobic pond.This circulation Desliming method enhances the desliming effect of common cyclone, and releases phosphorus for anaerobic sludge and provide grace time, improves the dephosphorization efficiency of crystallization reactor.
Description
Technical field
The present invention designs technical field of sewage, more particularly to a kind of for the pretreated anaerobic sludge of phosphorus in waste water crystallization
Quick mud-water separation method.
Background technique
With the continuous development of China's water pollution control cause, town sewage discharge standard is increasingly stringent, causes China existing
There are most sewage treatment plants to face and mention mark transform measure, the relevant technologies are in urgent need.Activated sludge process is at this stage at sewage
The prevailing technology of factory's denitrogenation of waste water dephosphorization processing is managed, but since technique itself synchronous denitrification dephosphorizing efficiency mutually restricts, it is difficult into one
Step improves treatment effect, and the indexs such as water outlet SS, TP are unable to satisfy level-one A standard, needs to carry out upgrading.Phosphorus is used as one kind not
Renewable resource is the key factor for causing water eutrophication, constitutes important threat to water environment safety and drinking water safety,
It is the important Con trolling index that water pollution control and sewage plant propose mark transformation.
In the further dephosphorization of activated sludge process side, the matter of utmost importance for needing to overcome be exactly anaerobic pond muddy water mixed solution how
Carry out efficient mud-water separation.Traditional method is to precipitate muddy water mixed solution suction sedimentation basin, but traditional sedimentation basin is time-consuming
Too long, although can guarantee that anaerobic sludge releases phosphorus effect, treatment effeciency is low, and desliming rate is not high, if there is partial sludge entrance
Crystallization reactor can impact crystallization reaction, cause to crystallize impure, dephosphorizing rate decline.And common cyclone can only guarantee to take off
Mud rate, is unable to control the reaction time, and the reaction time is too short to cause anaerobic sludge to be unable to fully release phosphorus, into phosphorus crystallization reactor
Supernatant phosphorus content is low, is unable to fully dephosphorization.Therefore, develop it is a set of not only can guarantee anaerobic pond muddy water mixed solution desliming effect, but also
Control anaerobic pond sludge is able to achieve to release the device and method of phosphorus time and have important practical significance.
Summary of the invention
When the present invention cannot be considered in terms of efficient desliming rate and guarantee that anaerobic pond sludge releases phosphorus for traditional mud-water separation method
Between the problem of, propose a kind of to crystallize the pretreated quick mud-water separation method of anaerobic sludge for phosphorus in waste water.
The purpose of the invention is achieved by the following technical solution:
One kind crystallizing the pretreated quick mud-water separation method of anaerobic sludge for phosphorus in waste water, and this method is to be recycled using pressure current
Formula eddy flow carries out mud-water separation, the wherein equipment of mud-water separation, including circulating cyclone feed inlet, circulation water inlet, eddy flow
Tapered main body, inside and outside double overflow mouth, underflow opening, interior circulation overflow catch basin, interior circulating outlet；Reaction closes bottom before starting
Head piece and outer overflow port valve, anaerobic pond muddy water mixed solution are tapered from feed inlet suction eddy flow with fixed flow rate by charging peristaltic pump
Main body, tapered main body are spilled over to interior circulation overflow catch basin and flow out from interior circulating outlet after filling, circulating outlet water outlet
It is pumped by freq uency conversion supercharging from cyclone circulation water inlet and is pumped into, simultaneously close off charging peristaltic pump, feed inlet stops charging, reactor
Into recurrent state；After anaerobic sludge sufficiently releases phosphorus, opens underflow opening, outer overflow port valve and feed peristaltic pump, while into
The process of row cyclic process and charging, water outlet；Outer overflow port water outlet enters the progress of fluidized bed crystallization reactor for rich phosphorus supernatant
Crystallizing-dephosphorizing reaction, underflow opening mud extraction are to release phosphorus sludge to be back to anaerobic pond by sludge reflux pump.
It is as described herein it is a kind of crystallize the pretreated quick mud-water separation method of anaerobic sludge for phosphorus in waste water, in this method
The water outlet collected in circulation overflow catch basin need to be pumped from circulation water inlet by freq uency conversion supercharging through interior circulating outlet and is pumped into, and must not be flowed
The circulatory system out.
As described herein a kind of for the pretreated quick mud-water separation method of anaerobic sludge of phosphorus in waste water crystallization, this method is anti-
Before answering device to start, underflow opening and outer overflow port valve need to be closed, avoids anaerobism muddy water mixed solution the case where also not releasing phosphorus completely
Lower outflow cyclone circulating system, all water outlets reenter circulation, its object is to make anaerobic sludge sufficiently release phosphorus and into
One step enhances eddy flow desliming effect.
As described herein a kind of for the pretreated quick mud-water separation method of anaerobic sludge of phosphorus in waste water crystallization, this method is anti-
When should just start, anaerobic pond muddy water mixed solution need to be pumped into the tapered main body of eddy flow from feed inlet with lower flow velocity by peristaltic pump, this
When the circulatory system do not open also, started the cycle over after tapered main body spill-over；Circulation closes peristaltic pump, cyclone feed inlet after starting
Stop water inlet；Charging peristaltic pump, outer overflow port valve, underflow opening valve are opened after anaerobic sludge sufficiently releases phosphorus, are fed at this time
Mouth and circulation water inlet are opened simultaneously, and cyclone system is run simultaneously with the circulatory system, and feed inlet flow is equal to outer overflow port flow
The sum of with underflow opening flow.
A kind of phosphorus in waste water that is used for as described herein crystallizes the pretreated quick mud-water separation method of anaerobic sludge, this method
Circulating cyclone final outflow water is rich phosphorus supernatant, enters fluidized bed crystallizing-dephosphorizing reactor and carries out except phosphorus reaction；Circulation
Sludge after formula cyclone desilts should be back to anaerobic pond participation subsequent reactions.
It is as described herein a kind of for the pretreated quick mud-water separation method of anaerobic sludge of phosphorus in waste water crystallization, this method rotation
Stream device feed inlet water inlet flow velocity is far smaller than circulation water inlet flow velocity, and check-valves need to be set at feed inlet, avoids circulation water inlet
Water inlet is flowed back by feed inlet.
What the present invention realized has the beneficial effect that
The present invention increases eddy flow internal circulation system by the improvement to traditional cyclone, combines hydrocyclone, commonly sinks
The advantages of shallow lake pond, improves the efficiency of anaerobic pond muddy water mixed solution mud-water separation, ensure that anaerobism by adding internal circulation system
Pond sludge releases the effect of phosphorus, as the pretreating process of phosphorus crystallization reaction, can tentatively solve anaerobic pond muddy water mixed solution muddy water point
From difficult problem, in conjunction with activated sludge process and phosphorus crystallization processes can high efficiente callback phosphor resource, solve the shortage of part phosphor resource
Problem, and harm of the phosphorus containing sludge discharge to environment is reduced, there is preferable application value.
The present invention has the advantage that are as follows:
It can guarantee that anaerobic sludge sufficiently releases phosphorus, and adjustable follow according to adjustment be released the phosphorus time at any time the case where anaerobic sludge
Circulation speed, improves the sludge activity of anaerobic environment.By circulating cyclone, phosphorus crystallization reaction dephosphorizing rate can be improved, activity
Sludge phosphor-removing effect, makes effluent quality be further improved, and 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 equipment drawing of the anaerobic sludge mixed liquor mud-water separation as phosphorus crystallization pretreating process.
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.
The underflow opening and outer overflow port valve of circulating cyclone are closed in reaction before starting, by anaerobic pond in activated sludge process
Muddy water mixed solution as processing raw water, by charging peristaltic pump with fixed flow rate (about 2 ~ 5L/h) from feed inlet be pumped into rotating flow cone
Type main body first fills tapered main body, after open freq uency conversion supercharging pump when being spilled over to interior circulation overflow catch basin, overflow water outlet is from interior
Circulating outlet outflow, is pumped from cyclone circulation water inlet by freq uency conversion supercharging and is pumped into, and flow velocity is about 2 ~ 5m3/h, opens frequency conversion
Charging peristaltic pump is closed while pump, feed inlet stops charging, and reactor enters repetition self-loopa state, and anaerobic sludge is recycling
Phosphorus is sufficiently released in formula cyclone；After anaerobic sludge satisfaction releases phosphorus condition, opens underflow opening, outer overflow port valve and charging and wriggle
Pump, while the process of cyclic process and charging, water outlet is carried out, throat-fed flow is equal to outer overflow port flow and underflow at this time
The sum of mouth flow, the circulatory system is unaffected；Outer overflow port water outlet can enter fluidized bed crystallization reactor for rich phosphorus supernatant
Crystallizing-dephosphorizing reaction is carried out, underflow opening mud extraction is to release phosphorus sludge to be back to anaerobic pond by sludge reflux pump.
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 (6)
1. one kind crystallizes the pretreated quick mud-water separation method of anaerobic sludge for phosphorus in waste water, this method is to be followed using pressure current
Ring type eddy flow carries out quick mud-water separation, wherein the equipment of mud-water separation, including circulating cyclone feed inlet, circulation water inlet
Mouthful, the tapered main body of eddy flow, inside and outside double overflow mouth, underflow opening, interior circulation overflow catch basin, interior circulating outlet；Before reaction starts
Underflow opening and outer overflow port valve are closed, anaerobic pond muddy water mixed solution is pumped into fixed flow rate from feed inlet by charging peristaltic pump to be revolved
Flow cone type main body, tapered main body are spilled over to interior circulation overflow catch basin and flow out from interior circulating outlet, cyclic water outlet after filling
Mouth water outlet, which is pumped by freq uency conversion supercharging from cyclone circulation water inlet, to be pumped into, and charging peristaltic pump is simultaneously closed off, and feed inlet stops charging,
Reactor enters recurrent state；After anaerobic sludge sufficiently releases phosphorus, underflow opening, outer overflow port valve and charging peristaltic pump are opened,
The process of cyclic process and charging, water outlet is carried out simultaneously；Outer overflow port water outlet enters fluidized bed crystallization reaction for rich phosphorus supernatant
Device carries out crystallizing-dephosphorizing reaction, and underflow opening mud extraction is to release phosphorus sludge to be back to anaerobic pond by sludge reflux pump.
2. a kind of phosphorus in waste water that is used for according to claim 1 crystallizes the pretreated quick mud-water separation method of anaerobic sludge,
It is characterized by: the water outlet collected in interior circulation overflow catch basin need to be pumped from circulation by freq uency conversion supercharging through interior circulating outlet and be intake
Mouth is pumped into, and must not flow out the circulatory system.
3. a kind of phosphorus in waste water that is used for according to claim 1 crystallizes the pretreated quick mud-water separation method of anaerobic sludge,
It is characterized by: underflow opening and outer overflow port valve need to be closed before reactor start-up, avoid anaerobism muddy water mixed solution also not complete
Cyclone circulating system is flowed out in the case where releasing phosphorus entirely, all water outlets reenter circulation, and its object is to fill anaerobic sludge
Divide and releases phosphorus and further increase eddy flow desliming efficiency.
4. a kind of phosphorus in waste water that is used for according to claim 1 crystallizes the pretreated quick mud-water separation method of anaerobic sludge,
It is characterized by: anaerobic pond muddy water mixed solution need to be pumped into lower flow velocity from feed inlet by peristaltic pump to be revolved when reaction just starts
Flow cone type main body, the circulatory system is not opened also at this time, is started the cycle over after tapered main body spill-over；Circulation is closed after starting wriggles
Pump, cyclone feed inlet stop water inlet；Charging peristaltic pump, outer overflow port valve, underflow are opened after anaerobic sludge sufficiently releases phosphorus
Mouth valve, feed inlet and circulation water inlet are opened simultaneously at this time, and cyclone system is run simultaneously with the circulatory system, feed inlet flow etc.
In the sum of outer overflow port flow and underflow opening flow.
5. a kind of phosphorus in waste water that is used for according to claim 1 crystallizes the pretreated quick mud-water separation method of anaerobic sludge,
It is characterized by: circulating cyclone final outflow water is rich phosphorus supernatant, enters fluidized bed crystallizing-dephosphorizing reactor and removed
Phosphorus reaction；Sludge after circulating cyclone desilts should be back to anaerobic pond participation subsequent reactions.
6. a kind of phosphorus in waste water that is used for according to claim 1 crystallizes the pretreated quick mud-water separation method of anaerobic sludge,
It is characterized by: cyclone feed inlet water inlet flow velocity is far smaller than circulation water inlet flow velocity, check-valves need to be set at feed inlet, is kept away
Exempt from circulation water inlet water inlet to flow back by feed inlet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910203047.0A CN109748389A (en) | 2019-03-18 | 2019-03-18 | One kind crystallizing the pretreated quick mud-water separation method of anaerobic sludge for phosphorus in waste water |
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| CN201910203047.0A CN109748389A (en) | 2019-03-18 | 2019-03-18 | One kind crystallizing the pretreated quick mud-water separation method of anaerobic sludge for phosphorus in waste water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113634360A (en) * | 2021-07-21 | 2021-11-12 | 威海创丰科技有限公司 | Adjustable spinning swirler and adjustable spinning middlings washing device thereof |
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| WO1984004702A1 (en) * | 1983-06-01 | 1984-12-06 | Noel Carroll | Overflow outlet for a cyclone separator |
| US5002671A (en) * | 1988-06-09 | 1991-03-26 | Cyclofil (Proprietary) Limited | Hydro-cyclone with circulation outlet for boundary layer flow |
| JP2001009211A (en) * | 1999-06-08 | 2001-01-16 | Matsushita Electron Europ Gmbh | Device for settling fluorescent material |
| CN102092898A (en) * | 2010-12-24 | 2011-06-15 | 东南大学 | Efficient denitrification, dephosphorization, denitrification and phosphorus resource recycling process for urban sewage |
| CN102372353A (en) * | 2011-08-03 | 2012-03-14 | 东华大学 | Spiral-flow type crystal phosphorous removal reactor |
| CN104773788A (en) * | 2014-01-13 | 2015-07-15 | 邱玉冬 | Cycle cyclone separator |
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2019
- 2019-03-18 CN CN201910203047.0A patent/CN109748389A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1984004702A1 (en) * | 1983-06-01 | 1984-12-06 | Noel Carroll | Overflow outlet for a cyclone separator |
| US5002671A (en) * | 1988-06-09 | 1991-03-26 | Cyclofil (Proprietary) Limited | Hydro-cyclone with circulation outlet for boundary layer flow |
| JP2001009211A (en) * | 1999-06-08 | 2001-01-16 | Matsushita Electron Europ Gmbh | Device for settling fluorescent material |
| CN102092898A (en) * | 2010-12-24 | 2011-06-15 | 东南大学 | Efficient denitrification, dephosphorization, denitrification and phosphorus resource recycling process for urban sewage |
| CN102372353A (en) * | 2011-08-03 | 2012-03-14 | 东华大学 | Spiral-flow type crystal phosphorous removal reactor |
| CN104773788A (en) * | 2014-01-13 | 2015-07-15 | 邱玉冬 | Cycle cyclone separator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113634360A (en) * | 2021-07-21 | 2021-11-12 | 威海创丰科技有限公司 | Adjustable spinning swirler and adjustable spinning middlings washing device thereof |
| CN113634360B (en) * | 2021-07-21 | 2024-01-23 | 威海创丰科技有限公司 | Spin-adjustable cyclone and spin-adjustable middling washing and selecting device thereof |
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Application publication date: 20190514 |