CN106396211A - Electrocoagulation and ceramic micro-filtration membrane coupling device for purifying micro-polluted source water as well as process - Google Patents
Electrocoagulation and ceramic micro-filtration membrane coupling device for purifying micro-polluted source water as well as process Download PDFInfo
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- CN106396211A CN106396211A CN201611166481.9A CN201611166481A CN106396211A CN 106396211 A CN106396211 A CN 106396211A CN 201611166481 A CN201611166481 A CN 201611166481A CN 106396211 A CN106396211 A CN 106396211A
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/463—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
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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
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
Abstract
The invention provides an electrocoagulation and ceramic micro-filtration membrane coupling device for purifying micro-polluted source water as well as a process. The device comprises a submersible pump, a raw water tank, an electrocoagulation reactor water feed pump, an electrocoagulation reactor, a middle water storage tank, a ceramic micro-filtration membrane assembly water feed pump, a ceramic micro-filtration membrane assembly, a backwash water tank, a clear water tank, an air compressor, a concentrated water drain pipe, a concentrated water backflow pipe, a concentrated water pipe, an osmosis water/backwash water conversion pipe, a backwash drain pipe and an air pipe. The device is simple, compact in structure, high in treatment efficiency and convenient to maintain and manage, combines advantages of an electrocoagulation technology and a ceramic micro-filtration membrane technology, improves the effluent quality of the ceramic micro-filtration membrane, delays attenuation of membrane flux and overcomes defects of high energy consumption and long solid-liquid separation time of electrocoagulation, thereby achieving the purpose of complementary advantages and being suitable for popularization and application.
Description
Technical field
The present invention relates to a kind of coupling device of electric flocculation ceramic micro filter film purifying slightly polluted water source water and technique, belong to water
Environmental capacity field.
Background technology
In Water purification industry, by coagulation, precipitation, filtration, sterilization based on conventional water purification PROCESS FOR TREATMENT right
As if meeting the water body of drinking water source water quality standard, it is for the turbidity in water, colourity, colloid, particle, microorganism etc.
Substantially, water quality is easier to up to standard reason effect.But the development with human society, various organic emission accelerate water source in water body
Deterioration, part index number is higher than《Water environment quality standard》(GB3838-2002) will to the standard limited value of III class water body in
Ask, in the face of this kind of micro-polluted source water, traditional water-purifying process is difficult to make water outlet meet《Drinking water sanitary standard》
(GB5749-2006) requirement is it is ensured that the safety of drinking water.
Membrane technology increasingly receives significant attention by its unique advantage as forth generation handling technology of water supply, particularly
Ceramic micro filter film, has stable chemical nature, acid and alkali-resistance, organic solvent and microbial attack, high mechanical strength, energy consumption is low, no
Easily block, long service life, the features such as anti-extreme climate.But during practical operation runs, ceramic micro filter film is used for processing pond
During the higher source water of the content of organics such as water, reservoir water, not only the decline of membrane flux is rapid, Pore Blocking is serious, aquifer yield is anxious
Acute decline, and low to the clearance of Organic substance in water, threaten water supply quality safety.Before existing employing film, chemical coagulation process is located in advance
Reason, such as tiny flocculation, membrane filtration and air-float integral reaction unit and the method (application number with its low turbid micro-polluted water of process：
201010566493.7), but its chemical floc dosage is larger, sludge yield is larger, easily forms secondary pollution, and waterpower
The time of staying is longer.
Electric flocculation technique is used for water treatment field, and advantage has：Equipment is simple, compact conformation, and floor space is little, Operation and Maintenance
Conveniently it is easy to couple with other techniques；The metal ion free from admixture that reaction generates, composition is pure, and sludge yield is little, electrode metal
Consumption is low；Wide accommodation to raw water, is not required to add chemical agent in course of reaction, there is not the preservation problem of medicament,
There is not the risk of secondary pollution；The metal ion activity that electrode dissolution is generated is high, and flocculating property is strong, the micro-bubble of formation
Play the flotation that can also complete particulate matter while stirring, treatment effeciency is high.But energy consumption is too high, process time is long lacks
Fall into the popularization and application that govern electric flocculation technique always.
Using electric flocculation as ceramic micro filter film pretreatment, the impurity in water first passes through electric flocculation reactor, partial impurities
Oxidized removal, partly takes off and surely forms small flco, then is removed by ceramic micro filter film interception filtration.Different from more existing with
Electric flocculation-ultrafiltration membrane technique is the water purification installation of core, and such as a kind of group technology processing micro-polluted water and device (are applied for
Number：201410342465.5), adopt organic hollow fiber ultrafilter membrane intermittent duty in this patent, operating pressure is big, high energy consumption,
And fenestra little Yi blocking, inner pressed hollow-fibre membrane not easy cleaning simultaneously, flux recovery is poor, in addition organic hollow fiber film
Easily enriched microorganism, aging fracture and be difficult to discover, pollute water outlet.By contrast, using tubular ceramic micro-filtration membrane, operating pressure
Relatively low, energy efficient, fenestra is larger to be difficult to block, and is readily cleaned after fouling membrane, and anti-physics and chemistry cracking and microbial degradation.
Therefore, in conjunction with the coupling technique of electric flocculation technique and ceramic micro filter film technical advantage, both improve ceramic micro filter film effluent quality,
Delay the decay of membrane flux, overcome electric flocculation high energy consumption, the defect of solid-liquid separation time length again, reached mutual supplement with each other's advantages
Purpose.
Content of the invention
For above-mentioned weak point of the prior art, the present invention provides a kind of compact conformation, stable performance, technique letter
The coupling device of the electric flocculation ceramic micro filter film purifying slightly polluted water source water single, treatment effeciency is high.
To achieve these goals, the present invention provides technical scheme below：A kind of electric flocculation ceramic micro filter film purifies micro- dirt
The coupling device of dye source water, including immersible pump, raw water box, electric flocculation reactor intake pump, electric flocculation reactor, DC voltage-stabilizing
Power supply, intermediate water storage case, ceramic micro filter membrane module intake pump, ceramic micro filter membrane module, backwash tank, filtered water tank, air compressor machine,
Condensed water drain, condensed water return duct, concentration water pipe, infiltration water/backwash water conversion tube, backwash drain pipe and air hose,
The water inlet of described raw water box is connected with immersible pump by pipeline, and outlet is reacted with electric flocculation through electric flocculation reactor intake pump
Device connects, and described electric flocculation reactor is connected with D.C. regulated power supply by wire, the outlet of this electric flocculation reactor and in
Between the water inlet of storage tank communicate, the outlet of intermediate water storage case is through ceramic micro filter membrane module intake pump and ceramic micro filter membrane module
Connect, the bottom of described ceramic micro filter membrane module is provided with the backwash drain pipe being attached thereto, described ceramic micro filter film group
The condensed water Gutron on part top is crossed threeway and is connected with condensed water drain and condensed water return duct, this condensed water return duct with middle
Storage tank connects, and ceramic micro filter membrane module outlet is communicated with backwash tank via infiltration water/backwash water conversion tube, described anti-
The outlet rinsing water pot connects filtered water tank, upper end is connected with air compressor machine by air hose.
Preferably, described electric flocculation reactor includes battery lead plate, conductive copper rod, lucite shell and is used for placing electricity
The bracket of pole plate, this battery lead plate is connected by contact rod and parallel is staggered in lucite inside the shell.
Preferably, being provided with base and blow-off pipe in described electric flocculation reactor bottom.
Preferably, described ceramic micro filter membrane module adopts the intrinsic pressure ceramic micro filter film of tubular type.
A kind of technique with above-mentioned coupling device, comprises the steps：
1) source water injects raw water box through immersible pump, then is pumped into electric flocculation reactor by the water inlet of electric flocculation reactor,
Electric flocculation reactor intake pump discharge equipped with valve and effusion meter be used for adjusting electric flocculation reactor flow of inlet water constant for 4L/
In min, and then control electric flocculation reactor, the time of staying of water body is 150s, and be arranged in parallel in electric flocculation reactor 8 pieces of 3mm thickness
Pure aluminum plate as battery lead plate, the through hole that Φ 10 is opened in pole plate upper end passes through conductive copper rod single stage type and connects, and pole plate lower end is placed in support
On frame, polar plate spacing 10mm；
2) start D.C. regulated power supply, adjusting output current according to raw water quality makes electric current density in 0.5-3.0mA/cm2
Between float；
3) water processing through electric flocculation enters intermediate water storage case under gravity, stops 300s to form small wadding
Body；
4) through step 3) reacted water body squeezes into ceramic micro filter membrane module by ceramic micro filter membrane module intake pump, pottery
Micro-filtration membrane module adopts cross flow filter pattern, wherein the intrinsic pressure ceramic micro filter film of two duct tubular types of filling, the long 500mm of every film,
It is connected in series, Al2O3Material, membrane aperture 200nm, concentrate the exclusion of water section concentrated water drain, partly flowed back by condensed water
Pipe is back to intermediate water storage case, and to make full use of unreacted metal ion, infiltration water enters backwash tank and filtered water tank,
It is 0.1MPa by Valve controlling transmembrane pressure on ceramic film component water inlet pipe, adjust the valve control concentrating on water pipe two branched pipe
Reflux ratio processed is 20%；
5) when the decay of this device aquifer yield is rapid, the outlet of ceramic micro filter membrane module intake pump and filtered water tank water inlet pipe are closed
On valve, open the valve on backwash drain pipe and air hose, start air compressor machine backwash ceramic micro filter film, open simultaneously
The mud of electric flocculation reactor bottom excluded by blow-off pipe, and exchanges the both positive and negative polarity of battery lead plate.
The present invention be can be seen that compared with existing other technologies by above technical scheme, there is advantages below：
(1) employing of electric flocculation technique, the nascent state hydroxo complex absorption that can be formed by anode, net are caught miscellaneous in water
Matter；And by redox in electric flocculation, can degrade, remove partial organic substances；What in addition negative electrode produced is small in a large number
The floating loading capability of flco absorption that bubble size is little, specific surface area is evacuated to float, colloid and structure greatly is strong, can improve film skill
The clearance to Organic substance for the art, lessening membrane fouling, increase the Membrane cleaning cycle.
(2) utilization of tubular ceramic micro-filtration membrane, can significantly improve the separation efficiency of solid-liquid after electric flocculation is processed, and saving accounts for
Ground area, reducing energy consumption；Tubular ceramic micro-filtration membrane physics and chemistry gives birth to stable in properties, high mechanical strength, long service life, preservation side simultaneously
Just, backwash is easy.
(3) combine electric flocculation and the advantage of ceramic micro filter film, both improve ceramic micro filter film effluent quality, and delayed film
The decay of flux, overcomes electric flocculation high energy consumption, the defect of solid-liquid separation time length again.Apparatus structure is compact, water source adaptability
Extensively, treatment effeciency is high, it is easy to accomplish Automated condtrol.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, also may be used
So that other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of electric flocculation reactor in the present invention.
Specific embodiment
To further describe the present invention with reference to specific embodiment and accompanying drawing.
A kind of coupling device of electric flocculation ceramic micro filter film purifying slightly polluted water source water as shown in Figures 1 and 2, including latent
Water pump 1, raw water box 2, electric flocculation reactor intake pump 3, electric flocculation reactor 4, D.C. regulated power supply 5, intermediate water storage case 7, pottery
Porcelain micro-filtration membrane module intake pump 8, ceramic micro filter membrane module 9, backwash tank 10, filtered water tank 11, air compressor machine 12, condensed water exclusion
Pipe 15, condensed water return duct 16, concentration water pipe 17, infiltration water/backwash water conversion tube 18, backwash drain pipe 19 and air hose
20, the water inlet of described raw water box 2 is connected with immersible pump 1 by pipeline, and outlet is through electric flocculation reactor intake pump 3 and electricity wadding
Solidifying reactor 4 connects, and described electric flocculation reactor 4 is connected with D.C. regulated power supply 5 by wire 13, this electric flocculation reactor 4
Outlet communicate with the water inlet of intermediate water storage case 7, described electric flocculation reactor 4 includes battery lead plate 21, conductive copper rod 22, has
Machine glass shell 23 and the bracket 24 for placing battery lead plate 21, this battery lead plate 21 is connected and parallel staggered row by contact rod 22
It is listed in lucite shell 23, according to the block number processing water yield changeable battery lead plate 21, the length-width ratio of adjustment battery lead plate 21；Root
Can be selected for Fe, Al, Mg or alloy material as battery lead plate 21, the employing of electric flocculation technique according to raw water quality, anode can be passed through
The impurity in water caught by the nascent state hydroxo complex absorption being formed, net；And by redox in electric flocculation, can drop
Solution, removal partial organic substances；In addition a large amount of micro-bubble sizes that negative electrode produces are little, specific surface area greatly to float, colloid and
The floating loading capability of flco absorption that structure is evacuated is strong, can improve the clearance to Organic substance for the membrane technology, lessening membrane fouling, increase film
Cleaning frequency, the outlet of intermediate water storage case 7 is connected with ceramic micro filter membrane module 9 through ceramic micro filter membrane module intake pump 8, described
Ceramic micro filter membrane module 9 adopts the intrinsic pressure ceramic micro filter film of tubular type, and material is Al2O3, cross flow filter pattern, produce water when needing to increase
During amount can branched ceramic micro filter film in parallel, or select multi-pore channel number ceramic micro filter film；Can adopt when needing to heighten effluent quality
Series multistage filters, or filling small-bore ceramic micro filter film, the utilization of tubular ceramic micro-filtration membrane, can significantly improve electric flocculation and process
The separation efficiency of solid-liquid, saves floor occupying area afterwards, reducing energy consumption；Tubular ceramic micro-filtration membrane physics and chemistry gives birth to stable in properties, machine simultaneously
Tool intensity is high, long service life, and it is convenient to preserve, and backwash is easy, is provided with the bottom of described ceramic micro filter membrane module 9 and connects therewith
The backwash drain pipe 19 connecing, the concentration water pipe 17 on described ceramic micro filter membrane module 9 top passes through threeway and condensed water drain
15 are connected with condensed water return duct 16, and this condensed water return duct 16 is connected with intermediate water storage case 7, ceramic micro filter membrane module 9 water outlet
Mouth is communicated with backwash tank 10 via infiltration water/backwash water conversion tube 18, and the outlet of described backwash tank 10 connects clear water
Case 11, upper end are connected with air compressor machine 12 by air hose 20.
A kind of technique with above-mentioned coupling device, comprises the steps：
1) source water injects raw water box 2 through immersible pump 1, then is pressed into electric flocculation reaction by electric flocculation reactor intake pump 3
Device 4, electric flocculation reactor intake pump 3 exports the flow of inlet water perseverance being used for adjusting electric flocculation reactor 4 equipped with valve and effusion meter
The time of staying being set to water body in 4L/min, and then control electric flocculation reactor 4 is 150s, as shown in Fig. 2 electric flocculation reactor
The thick pure aluminum plate of 8 pieces of 3mm be arranged in parallel as battery lead plate 21, the through hole that Φ 10 is opened in pole plate upper end passes through conductive copper rod 22 list in 4
Level formula connects, and pole plate lower end is placed on bracket 24, polar plate spacing 10mm；
2) start D.C. regulated power supply 5, adjusting output current according to raw water quality makes electric current density in 0.5-3.0mA/cm2
Between float；
3) water processing through electric flocculation enters intermediate water storage case 7 under gravity, stops 300s to form small wadding
Body；
4) through step 3) reacted water body squeezes into ceramic micro filter membrane module 9 by ceramic micro filter membrane module intake pump 8, pottery
Porcelain micro-filtration membrane module 9 adopts cross flow filter pattern, wherein the intrinsic pressure ceramic micro filter film of two 19 duct tubular types of filling, and every film is long
500mm, is connected in series, Al2O3Material, membrane aperture 200nm, concentrate water section concentrated water drain 15 and exclude, partly pass through dense
Shrink return duct 16 is back to intermediate water storage case 7, and to make full use of unreacted metal ion, infiltration water enters backwashing water
Tank 10 and filtered water tank 11, are 0.1MPa by Valve controlling transmembrane pressure on ceramic film component 9 water inlet pipe, adjust and concentrate water pipe two
Valve controlling reflux ratio on branched pipe is 20%；
5) when the decay of this device aquifer yield is rapid, close ceramic micro filter membrane module intake pump 8 outlet and filtered water tank 11 enters
Valve on water pipe, opens the valve on backwash drain pipe 19 and air hose 20, starts air compressor machine 12 backwash ceramic micro filter
Film, opens the mud that electric flocculation reactor 4 bottom excluded by blow-off pipe 14 simultaneously, and exchanges the both positive and negative polarity of battery lead plate 21.
Using coupling device and the PROCESS FOR TREATMENT somewhere lake water of above-mentioned electric flocculation ceramic micro filter film purifying slightly polluted water source water,
Raw water quality is after testing：23 DEG C of temperature, pH is 8.2, and turbidity is 9.61NTU, CODMnFor 6.29mg/L, UV254For 0.169cm-1, as shown in table 1, as shown in Table 1 under other conditions same case, electric current density is 2.0mA/cm to effluent quality2When water outlet
Get well and reach《Drinking water sanitary standard》(GB5749-2006) limit value requires.
Effluent quality after the process of table 1 electric flocculation ceramic micro filter film coupling technique
The present invention constructs a kind of dynamically continuous group technology running, and combines the excellent of electric flocculation and ceramic micro filter film
Point, had both improve ceramic micro filter film effluent quality, had delayed the decay of membrane flux, overcame electric flocculation high energy consumption again, and solid-liquid divides
Defect from time length.Apparatus structure is compact, water source wide adaptability, and treatment effeciency is high, it is easy to accomplish Automated condtrol, electric flocculation
The employing of technology, the impurity in water caught by the nascent state hydroxo complex absorption that can be formed by anode, net；And pass through electric flocculation
Middle redox, can degrade, remove partial organic substances；In addition a large amount of micro-bubble sizes that negative electrode produces are little, specific surface
The long-pending big floating loading capability of flco absorption that float, colloid and structure are evacuated is strong, can improve the removal to Organic substance for the membrane technology
Rate, lessening membrane fouling, increase the Membrane cleaning cycle；The utilization of tubular ceramic micro-filtration membrane, can significantly improve solid-liquid after electric flocculation is processed
The separation efficiency of body, saves floor occupying area, reducing energy consumption；Tubular ceramic micro-filtration membrane physics and chemistry gives birth to stable in properties, mechanical strength simultaneously
Height, long service life, it is convenient to preserve, and backwash is easy；Group technology can pass through to increase and decrease battery lead plate block number and ceramic micro filter film radical,
Adjustment water purification scale and effluent quality, realize engineer applied.
The technical scheme above embodiment of the present invention being provided is described in detail, specific case used herein
The principle and embodiment of the embodiment of the present invention is set forth, the explanation of above example is only applicable to help understand this
The principle of inventive embodiments；Simultaneously for one of ordinary skill in the art, according to the embodiment of the present invention, in specific embodiment party
All will change in formula and range of application, in sum, this specification content should not be construed as limitation of the present invention.
Claims (5)
1. a kind of coupling device of electric flocculation ceramic micro filter film purifying slightly polluted water source water, including immersible pump (1), raw water box (2),
Electric flocculation reactor intake pump (3), electric flocculation reactor (4), D.C. regulated power supply (5), intermediate water storage case (7), ceramic micro filter
Membrane module intake pump (8), ceramic micro filter membrane module (9), backwash tank (10), filtered water tank (11), air compressor machine (12), condensed water
Drain (15), condensed water return duct (16), concentration water pipe (17), infiltration water/backwash water conversion tube (18), backwash drain pipe
(19) and air hose (20) it is characterised in that：The water inlet of described raw water box (2) is connected with immersible pump (1) by pipeline, water outlet
Mouth is connected with electric flocculation reactor (4) through electric flocculation reactor intake pump (3), and described electric flocculation reactor (4) passes through wire
(13) it is connected with D.C. regulated power supply (5), the water inlet phase of the outlet of this electric flocculation reactor (4) and intermediate water storage case (7)
Logical, the outlet of intermediate water storage case (7) is connected with ceramic micro filter membrane module (9) through ceramic micro filter membrane module intake pump (8), in institute
The bottom stating ceramic micro filter membrane module (9) is provided with the backwash drain pipe (19) being attached thereto, described ceramic micro filter membrane module
(9) the concentration water pipe (17) on top is connected with condensed water drain (15) and condensed water return duct (16) by threeway, this concentration
Water return duct (16) is connected with intermediate water storage case (7), and ceramic micro filter membrane module (9) outlet is via infiltration water/backwash water conversion
Pipe (18) is communicated with backwash tank (10), and the outlet of described backwash tank (10) connects filtered water tank (11), sky is passed through in upper end
Trachea (20) is connected with air compressor machine (12).
2. the coupling device of electric flocculation ceramic micro filter film purifying slightly polluted water source water according to claim 1, its feature exists
In：Described electric flocculation reactor (4) includes battery lead plate (21), conductive copper rod (22), lucite shell (23) and is used for placing
The bracket (24) of battery lead plate (21), this battery lead plate (21) passes through contact rod (22) and connects and parallel be staggered outside lucite
In shell (23).
3. the coupling device of electric flocculation ceramic micro filter film purifying slightly polluted water source water according to claim 1 and 2, its feature
It is：Described electric flocculation reactor (4) bottom is provided with base (6) and blow-off pipe (14).
4. the coupling device of electric flocculation ceramic micro filter film purifying slightly polluted water source water according to claim 1, its feature exists
In：Described ceramic micro filter membrane module (9) adopts the intrinsic pressure ceramic micro filter film of tubular type.
5. a kind of technique with above-mentioned coupling device, is characterized in that, comprise the steps：
1) source water is through immersible pump (1) injection raw water box (2) more anti-by electric flocculation reactor intake pump (3) press-in electric flocculation
Answer device (4), electric flocculation reactor intake pump (3) outlet is used for adjusting entering of electric flocculation reactor (4) equipped with valve and effusion meter
The discharge constant time of staying for water body in 4L/min, and then control electric flocculation reactor (4) is 150s, electric flocculation reactor
(4) it be arranged the thick pure aluminum plate of 8 pieces of 3mm in parallel as battery lead plate (21), the through hole that Φ 10 is opened in pole plate upper end passes through conductive copper rod
(22) single stage type connects, and pole plate lower end is placed on bracket (24), polar plate spacing 10mm；
2) start D.C. regulated power supply (5), adjusting output current according to raw water quality makes electric current density in 0.5-3.0mA/cm2It
Between float；
3) water processing through electric flocculation enters intermediate water storage case (7) under gravity, stops 300s to form small flco；
4) through step 3) reacted water body squeezes into ceramic micro filter membrane module (9) by ceramic micro filter membrane module intake pump (8), pottery
Porcelain micro-filtration membrane module (9) adopts cross flow filter pattern, wherein the intrinsic pressure ceramic micro filter film of two (19) duct tubular types of filling, every film
Long 500mm, is connected in series, Al2O3Material, membrane aperture 200nm, concentrate water section concentrated water drain (15) exclusion, partly lead to
Cross condensed water return duct (16) and be back to intermediate water storage case (7), to make full use of unreacted metal ion, infiltration water enters
Backwash tank (10) and filtered water tank (11), are 0.1MPa by Valve controlling transmembrane pressure on ceramic film component (9) water inlet pipe,
Adjusting the Valve controlling reflux ratio concentrating on water pipe two branched pipe is 20%；
5) when the decay of this device aquifer yield is rapid, close ceramic micro filter membrane module intake pump (8) outlet and filtered water tank (11) enters
Valve on water pipe, opens the valve on backwash drain pipe (19) and air hose (20), starts air compressor machine (12) backwash pottery
Porcelain micro-filtration membrane, opens the mud that electric flocculation reactor (4) bottom excluded by blow-off pipe (14) simultaneously, and just exchanges battery lead plate (21)
Negative pole.
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| CN107352704A (en) * | 2017-08-18 | 2017-11-17 | 沈瑞忠 | A kind of printing ink wastewater recycling device |
| CN109502841A (en) * | 2018-12-04 | 2019-03-22 | 广东工业大学 | A kind of the advanced treating coupling device and its coupling technique of landfill leachate |
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