CN109485211A - Sewage disposal system and sewage treatment process - Google Patents
Sewage disposal system and sewage treatment process Download PDFInfo
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- CN109485211A CN109485211A CN201910059232.7A CN201910059232A CN109485211A CN 109485211 A CN109485211 A CN 109485211A CN 201910059232 A CN201910059232 A CN 201910059232A CN 109485211 A CN109485211 A CN 109485211A
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- ultrafiltration membrane
- membrane pool
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- reaction tank
- pool
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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
- C02F1/44—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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
-
- 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
- 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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- 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
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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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
Abstract
This application provides a kind of sewage disposal system and sewage treatment process, sewage disposal system includes biological phosphate-eliminating reaction tank, the first ultrafiltration membrane pool and the second ultrafiltration membrane pool；According to the concentration of the water for the phosphorus-containing wastewater for entering biological phosphate-eliminating reaction tank and phosphorus in phosphorus-containing wastewater, the first ultrafiltration membrane pool and the second ultrafiltration membrane pool are arranged in parallel or in series in the outlet end of biological phosphate-eliminating reaction tank；The first ultrafiltration membrane is provided in first ultrafiltration membrane pool, and the first ultrafiltration membrane pool is mating is provided with the first sludge reflux pump；The second ultrafiltration membrane is provided in second ultrafiltration membrane pool, and the second ultrafiltration membrane pool is mating is provided with the second sludge reflux pump；First sludge reflux pump is used to return to the sludge generated in the first ultrafiltration membrane pool in biological phosphate-eliminating reaction tank or outlet；Second sludge reflux pump is used to return to the sludge generated in the second ultrafiltration membrane pool in biological phosphate-eliminating reaction tank or outlet.The application can reduce the appearance of the idle situation of ultrafiltration membrane, can reduce the clean and maintenance cost and operating cost of system.
Description
Technical field
The application belongs to technical field of sewage, and in particular to a kind of sewage disposal system and sewage treatment process.
Background technique
Under the influence of mankind's activity, the nutriments such as biology required nitrogen, phosphorus largely enter lake, river mouth, bay etc.
Slow flow water bodies, this results in China's major part water body all to there are problems that eutrophication.To cope with this problem, country is for dirt
The content of phosphorus has formulated increasingly strict standard in water treatment plant, Sewage Disposal discharge water.
Gas phase state is not present in phosphorus at typical condition, this just determines that the P elements in sewage can only be that is, dirty with solid
The form of mud is separated from sewage.Specifically, traditional phosphorus-containing wastewater processing method mainly include biological dephosphorization and
Chemical dephosphorization method.Biological dephosphorization is the phosphorus absorbed in sewage using bacterium, reuses the means such as precipitating or filtering, will be with bacterium glue
The bacterium that group's form is present in sewage is separated with water, and the zoogloea isolated is known as residual active sludge.Chemical dephosphorization
Method is that dephosphorization agent is added in sewage, chemically reacts dephosphorization agent and the phosphorus containg substances of solubilised state in sewage, is generated phosphorous
Sediment reuses the methods of precipitating or filtering, phosphorous sediment is separated with water, the phosphorous sediment isolated is known as
Chemical sludge.
Traditional biological dephosphorization is influenced by biological natural characteristic, and the removal rate of phosphorus is not high, remaining in sewage after processing
The concentration value of phosphorus is easy fluctuation；And the phosphorus removal functional of system is related with sludge discharge, will be discharged greatly to increase dephosphorization amount
Activated sludge is measured, which reduces sludge retention times, increase aeration and desliming cost.Chemical dephosphorization method can be preferable
After control processing in sewage residual phosphorus concentration value, but its adding of agent higher cost, the combined use of general and biological dephosphorization:
If directly adding dephosphorization agent in biological phosphate-eliminating reaction tank, long-play can carry out the active zone of biological phosphate-eliminating activated sludge
Adverse effect；It is larger relative to the fluctuation of design value negative sense in water inlet phosphorus concentration if biological phosphate-eliminating and the series connection of chemical dephosphorization technique,
When phosphorus concentration is lower in biological treatment system production water, there is idle phenomenon in chemical dephosphorization equipment.
Summary of the invention
To be overcome the problems, such as present in the relevant technologies at least to a certain extent, this application provides a kind of sewage treatment systems
System and sewage treatment process.
According to the embodiment of the present application in a first aspect, this application provides a kind of sewage disposal systems comprising:
Biological phosphate-eliminating reaction tank,
First ultrafiltration membrane pool,
Second ultrafiltration membrane pool,
With the first delivery device；
According to the concentration of the water for the phosphorus-containing wastewater for entering the biological phosphate-eliminating reaction tank and phosphorus in phosphorus-containing wastewater, described the
One ultrafiltration membrane pool and the second ultrafiltration membrane pool are arranged in parallel or in series in the outlet end of the biological phosphate-eliminating reaction tank；
Be provided with the first ultrafiltration membrane in first ultrafiltration membrane pool, with first ultrafiltration membrane pool it is mating be provided with first dirt
Mud reflux pump；It is provided with the second ultrafiltration membrane in second ultrafiltration membrane pool, and second ultrafiltration membrane pool is mating is provided with second
Sludge reflux pump；
First sludge reflux pump is removed for the sludge generated in first ultrafiltration membrane pool to be returned to the biology
In phosphorus reaction pond or outlet；Second sludge reflux pump is used to the sludge generated in second ultrafiltration membrane pool returning to institute
It states in biological phosphate-eliminating reaction tank or outlet；
First delivery device is connect with the second ultrafiltration membrane pool, dense greater than presetting for the concentration when phosphorus in phosphorus-containing wastewater
Dephosphorization agent is launched into second ultrafiltration membrane pool when spending threshold value
Sewage disposal system as described above, when the concentration of phosphorus in the phosphorus-containing wastewater for entering the biological phosphate-eliminating reaction tank is small
When preset concentration threshold value, first ultrafiltration membrane pool and the second ultrafiltration membrane pool are connected in parallel on the biological phosphate-eliminating reaction tank
Outlet end；
When the concentration of phosphorus in the phosphorus-containing wastewater for entering the biological phosphate-eliminating reaction tank is greater than preset concentration threshold value, and this is phosphorous
When the water of sewage is less than or equal to said preset amount of water threshold value, first ultrafiltration membrane pool and the second ultrafiltration membrane pool are connected on the life
The outlet end of object dephosphorization reaction tank；
When the concentration of phosphorus in the phosphorus-containing wastewater for entering the biological phosphate-eliminating reaction tank is greater than preset concentration threshold value, and this is phosphorous
When dirty water is greater than said preset amount of water threshold value, it is anti-that first ultrafiltration membrane pool and the second ultrafiltration membrane pool are connected in parallel on the biological phosphate-eliminating
The outlet end of Ying Chi.
Sewage disposal system as described above, the outlet end of the biological phosphate-eliminating reaction tank and first ultrafiltration membrane pool connect
It connects, outlet end also passes through the first valve and connect with second ultrafiltration membrane pool；First ultrafiltration membrane pool passes through the second valve
It is connect with second ultrafiltration membrane pool；
According to the concentration of phosphorus in the water for the phosphorus-containing wastewater for entering the biological phosphate-eliminating reaction tank and phosphorus-containing wastewater, pass through control
Opening or closing for first valve and the second valve is made, first ultrafiltration membrane pool and the second ultrafiltration membrane pool are in parallel or series
In the outlet end of the biological phosphate-eliminating reaction tank.
Further, first valve opening first ultrafiltration membrane pool and the second surpasses when second valve is closed
Filter membrane pond is connected in parallel on the outlet end of the biological phosphate-eliminating reaction tank；First valve is closed, when second valve opening, institute
It states the first ultrafiltration membrane pool and the second ultrafiltration membrane pool is connected on the outlet end of the biological phosphate-eliminating reaction tank.
Sewage disposal system as described above, first delivery device pass through third valve and second ultrafiltration membrane pool
Connection；The sewage disposal system further includes the second delivery device；Second delivery device passes through the 4th valve and described the
The connection of one ultrafiltration membrane pool；
Second delivery device is for launching dephosphorization agent into first ultrafiltration membrane pool.
Sewage disposal system as described above, the sewage disposal system further include header tank, the first backwashing pump and second
The water outlet of backwashing pump, the water outlet of first ultrafiltration membrane pool and second ultrafiltration membrane pool with the header tank into
Mouth of a river connection；The water outlet of the header tank is connect with first backwashing pump and the second backwashing pump, and first backwashing pump connects
Enter in first ultrafiltration membrane pool, for carrying out backwash to the first ultrafiltration membrane in first ultrafiltration membrane pool；Described second is anti-
It washes pump to access in second ultrafiltration membrane pool, for carrying out backwash to the second ultrafiltration membrane in second ultrafiltration membrane pool.
Further, the sewage disposal system further includes the first self priming pump and the second self priming pump；First self priming pump
Import connect with first ultrafiltration membrane pool, outlet connect by second valve with second ultrafiltration membrane pool, or
The first output water outlet that person is directly handled first ultrafiltration membrane pool by valve；
The import of second self priming pump is connect with second ultrafiltration membrane pool, and outlet is connect with the header tank.
Sewage disposal system as described above, the sewage disposal system further include controller, flowmeter and Concentration Testing
Instrument, the flowmeter and concentration detector are connect with controller, and the controller is connect with first to fourth valve；The stream
Meter is used to detect the flow into the dephosphorization sewage of the biological phosphate-eliminating reaction tank, and the concentration detector enters for detecting
The concentration of the dephosphorization phosphor in sewage of the biological phosphate-eliminating reaction tank；Flow that the controller is detected according to the flowmeter and
The concentration of the phosphorus of the concentration detector detection controls opening or closing for first to fourth valve.
Sewage disposal system as described above, the outlet end of the biological phosphate-eliminating reaction tank are adopted with first ultrafiltration membrane pool
It is attached with bulkhgead gate, first valve also uses bulkhgead gate.
According to the second aspect of the embodiment of the present application, present invention also provides a kind of sewage treatment process comprising following
Step:
One dirt including biological phosphate-eliminating reaction tank, the first ultrafiltration membrane pool, the second ultrafiltration membrane pool and the first delivery device is set
Water treatment system；It is provided with the first ultrafiltration membrane in first ultrafiltration membrane pool, and first ultrafiltration membrane pool is mating is provided with
One sludge reflux pump；It is provided with the second ultrafiltration membrane in second ultrafiltration membrane pool, and second ultrafiltration membrane pool is mating is provided with
Second sludge reflux pump；First delivery device is used for when the concentration of phosphorus in phosphorus-containing wastewater is greater than preset concentration threshold value to institute
It states in the second ultrafiltration membrane pool and launches dephosphorization agent；According to the water and phosphorous dirt of the phosphorus-containing wastewater for entering the biological phosphate-eliminating reaction tank
The concentration of phosphorus in water, first ultrafiltration membrane pool and the second ultrafiltration membrane pool are arranged in parallel or in series in going out for the biological phosphate-eliminating reaction tank
Mouth end；
The biological phosphate-eliminating reaction tank handles phosphorus-containing wastewater, obtains the mixture of activated sludge and sewage；
Judge whether the concentration of phosphorus in phosphorus-containing wastewater is less than or equal to preset concentration threshold value；
When the concentration of phosphorus in phosphorus-containing wastewater is less than or equal to preset concentration threshold value, the mixture of activated sludge and sewage is same
When enter first ultrafiltration membrane pool and the second ultrafiltration membrane pool and be filtered；
When the concentration of phosphorus in phosphorus-containing wastewater is greater than preset concentration threshold value, the import of biological phosphate-eliminating reaction tank is further judged
Whether the water of end phosphorus-containing wastewater is less than or equal to preset water threshold value；
When the water of the input end phosphorus-containing wastewater of biological phosphate-eliminating reaction tank is less than or equal to preset water threshold value, activity
The mixture of sludge and sewage is successively filtered into first ultrafiltration membrane pool and the second ultrafiltration membrane pool, and is thrown by first
It puts device and launches dephosphorization agent into the second ultrafiltration membrane pool；
When the water of the input end phosphorus-containing wastewater of biological phosphate-eliminating reaction tank be greater than preset water threshold value when, activated sludge and
The mixture of sewage is filtered into first ultrafiltration membrane pool and the second ultrafiltration membrane pool simultaneously；And pass through the first delivery device
Dephosphorization agent is launched into the second ultrafiltration membrane pool, dephosphorization agent is launched into the first ultrafiltration membrane pool by the second delivery device.
According to the above-mentioned specific embodiment of the application it is found that at least having the advantages that the application sewage treatment
System can make the first ultrafiltration according to the concentration of phosphorus and the water of phosphorus-containing wastewater in biological phosphate-eliminating reaction tank input end phosphorus-containing wastewater
Membrane cisterna and the second ultrafiltration membrane pool are arranged in parallel or in series in the outlet end of biological phosphate-eliminating reaction tank, reduce going out for the idle situation of ultrafiltration membrane
It is existing, the water quality and quantity fluctuation of water inlet can be more effectively adapted to, guarantees processing water, water quality when inflow is larger；In water
When smaller and P elements concentration is higher, the total content of phosphorus in output water can be greatly reduced；It can when phosphorus element content is lower
The clean and maintenance cost and operating cost of reduction system.
It is to be understood that above-mentioned general description and following specific embodiments are merely illustrative and illustrative, not
The range to be advocated of the application can be limited.
Detailed description of the invention
Following appended attached drawing is a part of the description of the present application, appended attached it illustrates embodiments herein
The principle for describing to be used to illustrate the application together of figure and specification.
Fig. 1 is that biological dephosphorization uses process flow chart of the ultrafiltration membrane as separating tool in the prior art.
Fig. 2 is that the enhanced group technology of membrane bioreactor biological phosphate-eliminating and chemical dephosphorization uses filtering in the prior art
The process flow chart of method.
Fig. 3 is a kind of one of structural schematic diagram of sewage disposal system provided by the embodiments of the present application.
Fig. 4 is a kind of second structural representation of sewage disposal system provided by the embodiments of the present application.
Fig. 5 is a kind of third structural representation of sewage disposal system provided by the embodiments of the present application.
Fig. 6 is the four of a kind of structural schematic diagram of sewage disposal system provided by the embodiments of the present application.
Fig. 7 is the five of a kind of structural schematic diagram of sewage disposal system provided by the embodiments of the present application.
Description of symbols:
1, biological phosphate-eliminating reaction tank；2, the first ultrafiltration membrane pool；21, the first self priming pump；3, the second ultrafiltration membrane pool；31, second
Self priming pump 4, the first valve；5, the second valve；6, third valve；7, the 4th valve；8, header tank；9, the first backwashing pump；10,
Two backwashing pumps.
Specific embodiment
For the purposes, technical schemes and advantages of the embodiment of the present application are more clearly understood, below will with attached drawing and in detail
Narration clearly illustrates the spirit of content disclosed herein, and any skilled artisan is understanding teachings herein
After embodiment, when the technology that can be taught by teachings herein, it is changed and modifies, without departing from the essence of teachings herein
Mind and range.
Illustrative embodiments of the present application and the description thereof are used to explain the present application, but is not intended as the restriction to the application.
In addition, in the drawings and embodiments the use of element/component of same or like label is for representing same or like portion
Point.
About " first " used herein, " second " ... etc., not especially censure the meaning of order or cis-position,
It is non-to limit the application, only for distinguish with same technique term description element or operation.
About direction term used herein, such as: upper and lower, left and right, front or rear etc. are only the sides with reference to attached drawing
To.Therefore, the direction term used is intended to be illustrative and not intended to limit this creation.
It is open term, i.e., about "comprising" used herein, " comprising ", " having ", " containing " etc.
Mean including but not limited to.
About it is used herein " and/or ", including any of the things or all combination.
It include " two " and " two or more " about " multiple " herein；It include " two groups " about " multiple groups " herein
And " more than two ".
About term used herein " substantially ", " about " etc., to modify it is any can with the quantity of slight change or
Error, but this slight variations or error can't change its essence.In general, slight change or mistake that such term is modified
The range of difference can be 20% in some embodiments, in some embodiments can be 10%, in some embodiments can for 5% or
It is other numerical value.It will be understood by those skilled in the art that the aforementioned numerical value referred to can be adjusted according to actual demand, not as
Limit.
It is certain to describe the word of the application by lower or discuss in the other places of this specification, to provide art technology
Personnel's guidance additional in relation to the description of the present application.
Present inventor has found in R&D process:
For biological dephosphorization, if be separated by solid-liquid separation using precipitating means, although ton water process energy consumption is lower,
Occupation area of equipment is big, and solid-liquid separation effect is bad, therefore mostly uses filter method, commonly uses ultrafiltration membrane as separating tool,
Process flow is as shown in Figure 1.
Activity sludge reflux is the necessary means of biological dephosphorization, is had problems in that: the water through ultrafiltration membrane output
Phosphorus content it is still relatively high (0.5mg/L or so), intake phosphorus content forward direction fluctuation it is larger when, produce water phosphorus content may exceed
Discharge standard (discharge standard 0.5mg/L).
To cope with the above problem, there is the enhancing of " membrane bioreactor (MBR) biological phosphate-eliminating+chemical dephosphorization " in the industry at present
The implementation of type group technology, the technique mainly includes following two:
The first is that dephosphorization agent is added in membrane bioreactor, retains residual active sludge and change simultaneously using ultrafiltration membrane
Sludge is learned, then with pump apparatus by sludge discharge system.The implementation has problems in that: dephosphorization agent is for activated sludge
There are certain flocculation and toxic actions, and activity sludge reflux, equipment long-play will affect the entirety of activated sludge
Activity.
Second is that dephosphorization agent is added in the output water of membrane bioreactor, and reusing the methods of precipitating or filtering will change
Sludge is learned to be separated from water.However, being separated using intermediate processing to chemical sludge and water, solid-liquid separation effect is undesirable, meeting
The water quality of output water is impacted.Preferably chemical sludge and water are separated using filter method.This mode
Integrated artistic process it is as shown in Figure 2.
Although in second of implementation using filter method to chemical sludge and water carry out separation be able to solve it is above-mentioned each
Class technical problem, but it uses two-stage ultrafiltration membrane, however it remains the too high problem of cost.Ultrafiltration membrane is calculated according to membrane area
Unit price, and per membrane area maximum discharge capacity (commonly referred to as membrane flux) is filtering certain particular liquid with certain specific film
When, it is a definite value.Generally, film can surpass the use of this definite value with the short time, but surpass this definite value for a long time and be caused not using meeting to film
Benefit influences.Therefore water is bigger, and film dosage is bigger, and buying expenses are higher.
When using process flow shown in Fig. 2 processing sanitary sewage, cost problem is especially prominent, this is because: life
Sewage water, water quality are changed greatly with seasonal periodicity, and cold season water is smaller, and hot season water is larger, and variation is also
Following features: when water is larger, total phosphorus concentration is relatively low in sewage；When water is less, total phosphorus concentration is relatively high in sewage.
This is resulted in practical applications, and the ultrafiltration membrane after biological phosphate-eliminating reaction tank must be by highest daily flow design selection.
Rule of thumb, the practical flow of inlet water of sanitary sewage be more than design maximum stream flow half when, due to water inlet phosphorus content compared with
Low, biological phosphate-eliminating reaction film water outlet phosphorus content has generally been in state up to standard, chemical dephosphorization reaction tank and wherein ultrafiltration membrane at this time
It is in the idle state being exceeded.Especially the idle of ultrafiltration membrane causes certain investment waste, if water inlet phosphorus content compared with
Idle chemical dephosphorization ultrafiltration membrane can be used in the state of low, cross water after sharing a part of biological phosphate-eliminating reaction
Amount, will be greatly reduced cleaning cost, extends the service life of ultrafiltration membrane.
Sewage treatment process provided by the present application can fluctuate biggish phosphorous dirt in influent quality, water successfully managing
While water process, additionally it is possible to substantially reduce the waste of plant investment.
As illustrated in figures 3-6, the application sewage disposal system includes biological phosphate-eliminating reaction tank 1, the first ultrafiltration membrane pool 2, second
Ultrafiltration membrane pool 3 and the first delivery device (not shown).
According to the concentration of phosphorus in the water for the phosphorus-containing wastewater for entering biological phosphate-eliminating reaction tank 1 and phosphorus-containing wastewater, the first ultrafiltration
Membrane cisterna 2 and the second ultrafiltration membrane pool 3 are arranged in parallel or in series in the outlet end of biological phosphate-eliminating reaction tank 1.
It is provided with the first ultrafiltration membrane in first ultrafiltration membrane pool 2, and the first ultrafiltration membrane pool 2 is mating is provided with the first sludge reflux
Pump.It is provided with the second ultrafiltration membrane in second ultrafiltration membrane pool 3, and the second ultrafiltration membrane pool 3 is mating is provided with the second sludge reflux pump.The
One sludge reflux pump is used to return to the sludge generated in the first ultrafiltration membrane pool 2 in biological phosphate-eliminating reaction tank 1 or outlet.Second
Sludge reflux pump is used to return to the sludge generated in the second ultrafiltration membrane pool 3 in biological phosphate-eliminating reaction tank 1 or outlet.
First delivery device is connect with the second ultrafiltration membrane pool, is greater than preset concentration threshold for the concentration when phosphorus in phosphorus-containing wastewater
Dephosphorization agent is launched into second ultrafiltration membrane pool when value.
Specifically, as shown in figure 3, when the concentration into phosphorus in the phosphorus-containing wastewater of biological phosphate-eliminating reaction tank 1 is less than or equal to
When preset concentration threshold value, the first ultrafiltration membrane pool 2 and the second ultrafiltration membrane pool 3 are connected in parallel on the outlet end of biological phosphate-eliminating reaction tank 1.
As shown in figure 4, when the concentration into phosphorus in the phosphorus-containing wastewater of biological phosphate-eliminating reaction tank 1 is greater than preset concentration threshold value,
And the water of the phosphorus-containing wastewater be less than or equal to said preset amount of water threshold value when, the first ultrafiltration membrane pool 2 and the second ultrafiltration membrane pool 3 are connected on
The outlet end of biological phosphate-eliminating reaction tank 1.
As shown in figure 5, when the concentration into phosphorus in the phosphorus-containing wastewater of biological phosphate-eliminating reaction tank 1 is greater than preset concentration threshold value,
And the water of the phosphorous dirt be greater than said preset amount of water threshold value when, the first ultrafiltration membrane pool 2 and the second ultrafiltration membrane pool 3 are connected in parallel on biological phosphate-eliminating
The outlet end of reaction tank 1.
Specifically, the outlet end of biological phosphate-eliminating reaction tank 1 is connect with the first ultrafiltration membrane pool 2, and outlet end also passes through first
Valve 4 is connect with the second ultrafiltration membrane pool 3.First ultrafiltration membrane pool 2 is connect by the second valve 5 with the second ultrafiltration membrane pool 3.Pass through control
Opening or closing for the first valve 4 and the second valve 5 is made, the first ultrafiltration membrane pool 2 and the second ultrafiltration membrane pool 3 are arranged in parallel or in series in life
The outlet end of object dephosphorization reaction tank 1.
Specifically, when control opens the first valve 4, closes the second valve 5, the first ultrafiltration membrane pool 2 and the second ultrafiltration membrane
Pond 3 is connected in parallel on the outlet end of biological phosphate-eliminating reaction tank 1.When control closes the first valve 4, opens the second valve 5, the first ultrafiltration
Membrane cisterna 2 and the second ultrafiltration membrane pool 3 are connected on the outlet end of biological phosphate-eliminating reaction tank 1.
It is understood that when the first ultrafiltration membrane pool 2 and the second ultrafiltration membrane pool 3 are connected on going out for biological phosphate-eliminating reaction tank 1
When mouth end, the mixture of activated sludge and sewage that the processing of biological phosphate-eliminating reaction tank 1 obtains is introduced into the first ultrafiltration membrane pool 2, the
The work of liquid level difference of the first output water that the processing of one ultrafiltration membrane pool 2 obtains between the first ultrafiltration membrane pool 2 and the second ultrafiltration membrane pool 3
With it is lower or under the action of the self priming pump of setting enter the second ultrafiltration membrane pool 3.
In the present embodiment, the first delivery device is connect by third valve 6 with the second ultrafiltration membrane pool 3.The application sewage
Processing system further includes the second delivery device.Second delivery device is connect by the 4th valve 7 with the first ultrafiltration membrane pool 2.Work as control
When system opens third valve 6, dephosphorization agent can be launched into the second ultrafiltration membrane pool 3 by the first delivery device.When control is opened
When four valves 7, dephosphorization agent can be launched into the first ultrafiltration membrane pool 2 by the second delivery device.
In the present embodiment, as shown in Figure 6 and Figure 7, the application sewage disposal system further includes header tank 8, the first backwash
Pump 9 and the second backwashing pump 10.The water outlet of first ultrafiltration membrane pool 2 and the water outlet of the second ultrafiltration membrane pool 3 with header tank 8
Water inlet connection.The water outlet of header tank 8 is connect with the first backwashing pump 9 and the second backwashing pump 10, and the first backwashing pump 9 passes through pipeline
It accesses in the first ultrafiltration membrane pool 2, for carrying out backwash to the first ultrafiltration membrane in the first ultrafiltration membrane pool 2；Second backwashing pump 10 is logical
It crosses pipeline to access in the second ultrafiltration membrane pool 3, for carrying out backwash to the second ultrafiltration membrane in the second ultrafiltration membrane pool 3.
By the way that header tank 8 is arranged, it can collect the first ultrafiltration membrane pool 2 and the discharge of the second ultrafiltration membrane pool 3 treated and is clear
Water；It, can be using treated clear water to the first ultrafiltration membrane and the second ultrafiltration membrane by the first backwashing pump 9 and the second backwashing pump 10
Backwash is carried out, to extend the service life of the first ultrafiltration membrane and the second ultrafiltration membrane, is cut operating costs.
Further, the application sewage disposal system further includes the first self priming pump 21 and the second self priming pump 31.Wherein, first
The import of self priming pump 21 is connect with the first ultrafiltration membrane pool 2, and outlet is connect by the second valve 5 with the second ultrafiltration membrane pool 3, or
Directly the first output water that the processing of the first ultrafiltration membrane pool 2 obtains is sent into header tank 8 by valve.
The import of second self priming pump 31 is connect with the second ultrafiltration membrane pool 3, and outlet is connect with header tank 8.
It can guarantee to be connected on biology when the first ultrafiltration membrane pool 2 and the second ultrafiltration membrane pool 3 by the way that the first self priming pump 21 is arranged
When the outlet end of dephosphorization reaction tank 1 and non-liquid level difference between the two, the mixture of activated sludge and sewage can be by the first surpassing
Filter membrane pond 2 smoothly enters the second ultrafiltration membrane pool 3.
When can guarantee the second ultrafiltration membrane pool 3 with 8 non-liquid level difference between the two of header tank by the way that the second self priming pump 31 is arranged,
Guarantee that the second output water smoothly enters in header tank 8.
In the present embodiment, the application sewage disposal system further includes controller, flowmeter and concentration detector, flowmeter
It is connect with controller with concentration detector, controller and the first valve 4, the second valve 5, third valve 6 and the 4th valve 7 connect
It connects.Flowmeter and concentration detector are arranged at the input end of biological phosphate-eliminating reaction tank 1.Flowmeter is removed for detecting into biology
The flow of the dephosphorization sewage in phosphorus reaction pond 1.Concentration detector is used to detect the dephosphorization phosphor in sewage into biological phosphate-eliminating reaction tank 1
Concentration.The concentration of the phosphorus for flow and the concentration detector detection that controller is detected according to flowmeter controls the first valve 4, the
Two valves 5, third valve 6 and the 4th valve 7 open or close, to realize automatic control.
In above-described embodiment, connected between the outlet end of biological phosphate-eliminating reaction tank 1 and the first ultrafiltration membrane pool 2 using bulkhgead gate
It connects, the first valve 4 can also use bulkhgead gate.Water is crossed using bulkhgead gate, can reduce what the flowing of suspended state sludge was subject to
It hinders, and is conveniently adjusted water amount, realization evenly distributes.
Using the application sewage disposal system, can more effectively adapt to the water quality and quantity fluctuation of water inlet, inflow compared with
Guarantee processing water, water quality when big；When and P elements concentration smaller in water is higher, the total of phosphorus in output water can be greatly reduced
Content；The clean and maintenance cost and operating cost of system can be reduced when phosphorus element content is lower.
Sewage disposal system based on the application, as shown in figure 4, present invention also provides a kind of sewage treatment process,
The following steps are included:
S1, setting include biological phosphate-eliminating reaction tank 1, the first ultrafiltration membrane pool 2, the second ultrafiltration membrane pool 3 and the first delivery device
Sewage disposal system.
It is provided with the first ultrafiltration membrane in first ultrafiltration membrane pool 2, and the first ultrafiltration membrane pool 2 is mating is provided with the first sludge reflux
Pump.It is provided with the second ultrafiltration membrane in second ultrafiltration membrane pool 3, and the second ultrafiltration membrane pool 3 is mating is provided with the second sludge reflux pump.The
One sludge reflux pump is used to return to the sludge generated in the first ultrafiltration membrane pool 2 in biological phosphate-eliminating reaction tank 1 or outlet.Second
Sludge reflux pump is used to return to the sludge generated in the first ultrafiltration membrane pool 2 in biological phosphate-eliminating reaction tank 1 or outlet.
First delivery device is used for when the concentration of phosphorus in phosphorus-containing wastewater is greater than preset concentration threshold value to second ultrafiltration
Dephosphorization agent is launched in membrane cisterna.
According to the concentration of the water for the phosphorus-containing wastewater for entering biological phosphate-eliminating reaction tank 1 and phosphorus in phosphorus-containing wastewater,
First ultrafiltration membrane pool 2 and the second ultrafiltration membrane pool 3 are arranged in parallel or in series in the outlet end of biological phosphate-eliminating reaction tank 1.
Wherein, the outlet end of biological phosphate-eliminating reaction tank 1 is connect with the first ultrafiltration membrane pool 2, and outlet end also passes through the first valve
Door 4 is connect with the second ultrafiltration membrane pool 3；First ultrafiltration membrane pool 2 is connect by the second valve 5 with the second ultrafiltration membrane pool 3.First ultrafiltration
Membrane cisterna 2 connects the second delivery device by the 4th valve 7,
Second ultrafiltration membrane pool 3 connects the first delivery device by third valve 6.
S2, biological phosphate-eliminating reaction tank 1 handle phosphorus-containing wastewater, obtain the mixture of activated sludge and sewage.
S3, judge whether the concentration of phosphorus in phosphorus-containing wastewater is less than or equal to preset concentration threshold value.Wherein, using Concentration Testing
Instrument detects the concentration of phosphorus in phosphorus-containing wastewater, and the input end of biological phosphate-eliminating reaction tank 1 is arranged in concentration detector.
S4, when the concentration of phosphorus in phosphorus-containing wastewater is less than or equal to preset concentration threshold value, open the first valve 4, close the
Two valves 5, third valve 6 and the 4th valve 7, the first ultrafiltration membrane pool 2 and the second ultrafiltration membrane pool 3 are connected in parallel on biological phosphate-eliminating reaction tank
1 outlet end.
At this point, not needing since the concentration of phosphorus phosphor in sewage is relatively low to the first ultrafiltration membrane pool 2 and the second ultrafiltration membrane pool
Dephosphorization agent is launched in 3.
The mixture of a part of activated sludge and sewage enters the first ultrafiltration membrane pool 2, and the first ultrafiltration membrane pool 2 is living to the part
The mixture of property sludge and sewage is filtered, and obtains activated sludge and the first output water.Wherein, a part of activity sludge reflux
To biological phosphate-eliminating reaction tank 1, the discharge of another activated sludge.The discharge of first output water.
The mixture of another part activated sludge and sewage enters the second ultrafiltration membrane pool 3.Second ultrafiltration membrane pool 3 is to the part
The mixture of activated sludge and sewage is filtered, and obtains activated sludge and the second output water.Wherein, a part of activated sludge returns
It is flow to biological phosphate-eliminating reaction tank 1, the discharge of another activated sludge.The discharge of second output water.
S5, when the concentration of phosphorus in phosphorus-containing wastewater is greater than preset concentration threshold value, further judge biological phosphate-eliminating reaction tank 1
Whether the water of input end phosphorus-containing wastewater is less than or equal to preset water threshold value.
Wherein, it is acquired using water of the flowmeter to the input end phosphorus-containing wastewater of biological phosphate-eliminating reaction tank 1, flowmeter
The input end of biological phosphate-eliminating reaction tank 1 is set.
When the water of the input end phosphorus-containing wastewater of biological phosphate-eliminating reaction tank 1 is less than or equal to preset water threshold value, close
The first valve 4 and the 4th valve 7 are closed, the second valve 5 and third valve 6 are opened.First ultrafiltration membrane pool 2 and the second ultrafiltration membrane pool 3
It is connected on the outlet end of biological phosphate-eliminating reaction tank 1.
The mixture of activated sludge and sewage is introduced into the first ultrafiltration membrane pool 2, the first ultrafiltration membrane pool 2 to the activated sludge and
The mixture of sewage is filtered, and obtains activated sludge and the first output water.Wherein, a part of activity sludge reflux to biology removes
Phosphorus reaction pond 1, the discharge of another activated sludge.
The first output water being obtained by filtration through the first ultrafiltration membrane pool 2 fully enters the second ultrafiltration membrane pool 3.Pass through third valve
6 are added dephosphorization agent into the second ultrafiltration membrane pool 3.Under the action of dephosphorization agent, the dissolution P elements in the first output water become heavy
It forms sediment.The second ultrafiltration membrane in second ultrafiltration membrane pool 3 is filtered precipitating and sewage, obtains chemical sludge and the second output water.
Chemical sludge and the second output water are discharged respectively.
When the water of the input end phosphorus-containing wastewater of biological phosphate-eliminating reaction tank 1 is greater than preset water threshold value, first is opened
Valve 4, third valve 6 and the 4th valve 7 close the second valve 5.First ultrafiltration membrane pool 2 and the second ultrafiltration membrane pool 3 are connected in parallel on life
The outlet end of object dephosphorization reaction tank 1.
The mixture of a part of activated sludge and sewage enters the first ultrafiltration membrane pool 2.By the 4th valve 7 to the first ultrafiltration
Dephosphorization agent is added in membrane cisterna 2, dissolution P elements under the action of dephosphorization agent, in the mixture of the amount of activated sludge and sewage
Become precipitating.First ultrafiltration membrane pool 2 is filtered the mixture of the amount of activated sludge and sewage, obtains activated sludge and change
Learn the mixing sludge and the first output water of sludge.Wherein, a part of mixing sludge is back to biological phosphate-eliminating reaction tank 1, another
Part mixing sludge discharge.The discharge of first output water.
The mixture of another part activated sludge and sewage enters the second ultrafiltration membrane pool 3.By third valve 6 to the second surpassing
Dephosphorization agent is added in filter membrane pond 3.Dissolution phosphorus member under the action of dephosphorization agent, in the mixture of the amount of activated sludge and sewage
Element becomes precipitating.The second ultrafiltration membrane in second ultrafiltration membrane pool 3 is filtered the mixture obtained at this time, obtains activated sludge
With the mixing sludge and the second output water of chemical sludge.A part of mixing sludge is back to biological phosphate-eliminating reaction tank 1, another
Mixing sludge discharge, the discharge of the second output water
Using the application sewage treatment process, according to the comparison result of the water of phosphorus-containing wastewater and said preset amount of water threshold value, when
When the water of phosphorus-containing wastewater is greater than said preset amount of water threshold value, it is anti-that the first ultrafiltration membrane pool 2 and the second ultrafiltration membrane pool 3 are connected in parallel on biological phosphate-eliminating
Answer the outlet end in pond 1.
The second ultrafiltration membrane in the first ultrafiltration membrane and the second ultrafiltration membrane in first ultrafiltration membrane pool 2 can play itself
Filtering function avoids ultrafiltration membrane idle to reduce the water flux of ultrafiltration membrane unit area, and the dirt for mitigating ultrafiltration membrane is stifled, reduces
The workload of clean and maintenance reduces operating cost, increases the service life of ultrafiltration membrane.In addition, by 2 He of the first ultrafiltration membrane pool
Dephosphorization agent is added simultaneously in second ultrafiltration membrane pool 3, copes with water in a short time and is higher by the special work of design value containing phosphorus concentration
Condition, to guarantee to be discharged safety compliance.
When the water of phosphorus-containing wastewater is less than or equal to said preset amount of water threshold value and the concentration of phosphorus is greater than preset concentration threshold value, the
One ultrafiltration membrane pool 2 and the second ultrafiltration membrane pool 3 are connected on the outlet end of biological phosphate-eliminating reaction tank 1.First in first ultrafiltration membrane pool 2
The second ultrafiltration membrane in ultrafiltration membrane and the second ultrafiltration membrane can play the filtering function of itself.
By carrying out two-stage series connection processing to the P elements in phosphorus-containing wastewater, it can guarantee that the concentration of phosphorus in output water is stablized
In reduced levels.
The foregoing is merely the schematical specific embodiments of the application, before not departing from the conceptions and principles of the application
It puts, the equivalent changes and modifications that any those skilled in the art is made, should belong to the range of the application protection.
Claims (10)
1. a kind of sewage disposal system characterized by comprising
Biological phosphate-eliminating reaction tank,
First ultrafiltration membrane pool,
Second ultrafiltration membrane pool
With the first delivery device；
It is described the first to surpass according to the concentration of phosphorus in the water for the phosphorus-containing wastewater for entering the biological phosphate-eliminating reaction tank and phosphorus-containing wastewater
Filter membrane pond and the second ultrafiltration membrane pool are arranged in parallel or in series in the outlet end of the biological phosphate-eliminating reaction tank；
It is provided with the first ultrafiltration membrane in first ultrafiltration membrane pool, is returned with mating first sludge that is provided with of first ultrafiltration membrane pool
Stream pump；It is provided with the second ultrafiltration membrane in second ultrafiltration membrane pool, and second ultrafiltration membrane pool is mating is provided with the second sludge
Reflux pump；
First sludge reflux pump is used to the sludge generated in first ultrafiltration membrane pool returning to the biological phosphate-eliminating anti-
Ying Chizhong or outlet；Second sludge reflux pump is used to the sludge generated in second ultrafiltration membrane pool returning to the life
In object dephosphorization reaction tank or outlet；
First delivery device is connect with the second ultrafiltration membrane pool, is greater than preset concentration threshold for the concentration when phosphorus in phosphorus-containing wastewater
Dephosphorization agent is launched into second ultrafiltration membrane pool when value.
2. sewage disposal system according to claim 1, which is characterized in that when containing into the biological phosphate-eliminating reaction tank
When the concentration of phosphorus phosphor in sewage is less than or equal to preset concentration threshold value, first ultrafiltration membrane pool and the second ultrafiltration membrane pool are connected in parallel on
The outlet end of the biological phosphate-eliminating reaction tank；
When the concentration of phosphorus in the phosphorus-containing wastewater for entering the biological phosphate-eliminating reaction tank is greater than preset concentration threshold value, and the phosphorus-containing wastewater
Water be less than or equal to said preset amount of water threshold value when, first ultrafiltration membrane pool and the second ultrafiltration membrane pool are connected on the biology and remove
The outlet end in phosphorus reaction pond；
When the concentration of phosphorus in the phosphorus-containing wastewater for entering the biological phosphate-eliminating reaction tank is greater than preset concentration threshold value, and this is phosphorous dirty
When water is greater than said preset amount of water threshold value, first ultrafiltration membrane pool and the second ultrafiltration membrane pool are connected in parallel on the biological phosphate-eliminating reaction tank
Outlet end.
3. sewage disposal system according to claim 1, which is characterized in that the outlet end of the biological phosphate-eliminating reaction tank with
The first ultrafiltration membrane pool connection, outlet end also passes through the first valve and connect with second ultrafiltration membrane pool；It is described the first to surpass
Filter membrane pond is connect by the second valve with second ultrafiltration membrane pool；
According to the concentration of phosphorus in the water for the phosphorus-containing wastewater for entering the biological phosphate-eliminating reaction tank and phosphorus-containing wastewater, by controlling institute
Opening or closing for the first valve and the second valve is stated, first ultrafiltration membrane pool and the second ultrafiltration membrane pool are arranged in parallel or in series in institute
State the outlet end of biological phosphate-eliminating reaction tank.
4. sewage disposal system according to claim 3, which is characterized in that first valve opening, second valve
When door is closed, first ultrafiltration membrane pool and the second ultrafiltration membrane pool are connected in parallel on the outlet end of the biological phosphate-eliminating reaction tank；It is described
First valve is closed, and when second valve opening, first ultrafiltration membrane pool and the second ultrafiltration membrane pool are connected on the biology
The outlet end of dephosphorization reaction tank.
5. sewage disposal system according to claim 4, which is characterized in that first delivery device passes through third valve
It is connect with second ultrafiltration membrane pool；The sewage disposal system further includes the second delivery device；Second delivery device is logical
The 4th valve is crossed to connect with first ultrafiltration membrane pool；Second delivery device into first ultrafiltration membrane pool for launching
Dephosphorization agent.
6. sewage disposal system according to claim 3 or 4, which is characterized in that the sewage disposal system further includes collection
Water tank, the first backwashing pump and the second backwashing pump, the water outlet of first ultrafiltration membrane pool and second ultrafiltration membrane pool go out
The mouth of a river is connect with the water inlet of the header tank；The water outlet of the header tank and first backwashing pump and the second backwashing pump
Connection, first backwashing pump accesses in first ultrafiltration membrane pool, for the first ultrafiltration in first ultrafiltration membrane pool
Film carries out backwash；Second backwashing pump accesses in second ultrafiltration membrane pool, for the in second ultrafiltration membrane pool
Two ultrafiltration membranes carry out backwash.
7. sewage disposal system according to claim 6, which is characterized in that the sewage disposal system further include first from
Sucking pump and the second self priming pump；The import of first self priming pump is connect with first ultrafiltration membrane pool, and outlet passes through described the
Two valves are connect with second ultrafiltration membrane pool, or directly handled first ultrafiltration membrane pool by valve first
Output water outlet；
The import of second self priming pump is connect with second ultrafiltration membrane pool, and outlet is connect with the header tank.
8. sewage disposal system according to claim 5, which is characterized in that the sewage disposal system further includes control
Device, flowmeter and concentration detector, the flowmeter and concentration detector are connect with controller, the controller and first to
The connection of 4th valve；The flowmeter is used to detect the flow into the dephosphorization sewage of the biological phosphate-eliminating reaction tank, described dense
Degree detector is used to detect the concentration into the dephosphorization phosphor in sewage of the biological phosphate-eliminating reaction tank；The controller is according to
Flowmeter detection flow and the concentration detector detection phosphorus concentration control first to fourth valve unlatching or
It closes.
9. sewage disposal system according to claim 3 or 4, which is characterized in that the outlet of the biological phosphate-eliminating reaction tank
End is attached with first ultrafiltration membrane pool using bulkhgead gate, and first valve also uses bulkhgead gate.
10. a kind of sewage treatment process, which comprises the following steps:
Being arranged one includes at the sewage of biological phosphate-eliminating reaction tank, the first ultrafiltration membrane pool, the second ultrafiltration membrane pool and the first delivery device
Reason system；Be provided with the first ultrafiltration membrane in first ultrafiltration membrane pool, with first ultrafiltration membrane pool it is mating be provided with first dirt
Mud reflux pump；It is provided with the second ultrafiltration membrane in second ultrafiltration membrane pool, and second ultrafiltration membrane pool is mating is provided with second
Sludge reflux pump；First delivery device is used for when the concentration of phosphorus in phosphorus-containing wastewater is greater than preset concentration threshold value to described the
Dephosphorization agent is launched in two ultrafiltration membrane pools；According in the water and phosphorus-containing wastewater of the phosphorus-containing wastewater for entering the biological phosphate-eliminating reaction tank
The concentration of phosphorus, first ultrafiltration membrane pool and the second ultrafiltration membrane pool are arranged in parallel or in series in the outlet of the biological phosphate-eliminating reaction tank
End；
The biological phosphate-eliminating reaction tank handles phosphorus-containing wastewater, obtains the mixture of activated sludge and sewage；
Judge whether the concentration of phosphorus in phosphorus-containing wastewater is less than or equal to preset concentration threshold value；
When the concentration of phosphorus in phosphorus-containing wastewater is less than or equal to preset concentration threshold value, the mixture of activated sludge and sewage simultaneously into
Enter first ultrafiltration membrane pool and the second ultrafiltration membrane pool is filtered；
When the concentration of phosphorus in phosphorus-containing wastewater is greater than preset concentration threshold value, further judge that the input end of biological phosphate-eliminating reaction tank contains
Whether the water of phosphorus sewage is less than or equal to preset water threshold value；
When the water of the input end phosphorus-containing wastewater of biological phosphate-eliminating reaction tank is less than or equal to preset water threshold value, activated sludge
It is successively filtered into first ultrafiltration membrane pool and the second ultrafiltration membrane pool with the mixture of sewage；And dress is launched by first
It sets and launches dephosphorization agent into the second ultrafiltration membrane pool；
When the water of the input end phosphorus-containing wastewater of biological phosphate-eliminating reaction tank is greater than preset water threshold value, activated sludge and sewage
Mixture be filtered simultaneously into first ultrafiltration membrane pool and the second ultrafiltration membrane pool；And by the first delivery device to the
Dephosphorization agent is launched in two ultrafiltration membrane pools, dephosphorization agent is launched into the first ultrafiltration membrane pool by the second delivery device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910059232.7A CN109485211A (en) | 2019-01-22 | 2019-01-22 | Sewage disposal system and sewage treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910059232.7A CN109485211A (en) | 2019-01-22 | 2019-01-22 | Sewage disposal system and sewage treatment process |
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| Publication Number | Publication Date |
|---|---|
| CN109485211A true CN109485211A (en) | 2019-03-19 |
Family
ID=65714812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910059232.7A Pending CN109485211A (en) | 2019-01-22 | 2019-01-22 | Sewage disposal system and sewage treatment process |
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| Country | Link |
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| CN (1) | CN109485211A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4431543A (en) * | 1981-04-13 | 1984-02-14 | Ebara Infilco Kabushiki Kaisha | Method of removing phosphorus from organic waste liquids |
| CN202881052U (en) * | 2012-10-18 | 2013-04-17 | 中联环有限公司 | Device for removing phosphorus chemically and forcibly by adopting A2O, membrane separation and cloth filter filtering |
| CN203513381U (en) * | 2013-09-23 | 2014-04-02 | 浙江东发环保工程有限公司 | Serial-parallel reverse osmosis system |
| CN106380041A (en) * | 2016-08-30 | 2017-02-08 | 上海世渊环保科技有限公司 | Detachable waste water processing facility and waste water processing technology |
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2019
- 2019-01-22 CN CN201910059232.7A patent/CN109485211A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4431543A (en) * | 1981-04-13 | 1984-02-14 | Ebara Infilco Kabushiki Kaisha | Method of removing phosphorus from organic waste liquids |
| CN202881052U (en) * | 2012-10-18 | 2013-04-17 | 中联环有限公司 | Device for removing phosphorus chemically and forcibly by adopting A2O, membrane separation and cloth filter filtering |
| CN203513381U (en) * | 2013-09-23 | 2014-04-02 | 浙江东发环保工程有限公司 | Serial-parallel reverse osmosis system |
| CN106380041A (en) * | 2016-08-30 | 2017-02-08 | 上海世渊环保科技有限公司 | Detachable waste water processing facility and waste water processing technology |
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| Title |
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| 曾郴林等: "《工业废水处理工程设计实例》", 31 January 2017, 中国环境出版社 * |
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