CN108640322A - A kind of ceramic membrane filter absorption processing system and its working method - Google Patents
A kind of ceramic membrane filter absorption processing system and its working method Download PDFInfo
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0039—Inorganic membrane manufacture
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0039—Inorganic membrane manufacture
- B01D67/0041—Inorganic membrane manufacture by agglomeration of particles in the dry state
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/04—Tubular membranes
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/02—Inorganic material
- B01D71/024—Oxides
- B01D71/027—Silicium oxide
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/04—Backflushing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2325/00—Details relating to properties of membranes
- B01D2325/02—Details relating to pores or porosity of the membranes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2325/00—Details relating to properties of membranes
- B01D2325/24—Mechanical properties, e.g. strength
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/003—Downstream control, i.e. outlet monitoring, e.g. to check the treating agents, such as halogens or ozone, leaving the process
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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
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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
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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Abstract
A kind of ceramic membrane filter absorption processing system and its working method, are related to water-treatment technology field.System by head tank, circulating pump, more medium filter, ceramic film component, recoil tank, air compressor and several solenoid valve blocks being arranged on pipeline at.The present invention is from two angles, to overcome the defect present in the ceramic membrane filter absorption processing system of the prior art.First, by rationally designing the structure composition of ceramic membrane filter absorption processing system, ceramic membrane filter absorption processing system has the advantages that use is simple, easy to operate, equipment manufacturing costs are cheap, and filtration and adsorption treatment is efficient.Meanwhile to the core component of ceramic membrane filter absorption processing system --- ceramic membrane is improved, and by rationally designing the preparation method of ceramic membrane, so that the ceramic filter membrane of preparation is had good absorption property, and have recyclability, service life is long.
Description
Technical field
The present invention relates to water-treatment technology field, it is specifically related to a kind of ceramic membrane filter absorption processing system and its work
Method.
Background technology
Water is the indispensable natural resources of human development, is the mankind and the material base that all living things are depended on for existence.When
The water source judgment that this life circle, water resource deficiency and pollution are constituted has become any one institute in policy, economic and technical of country
The main restricting factor of the challenge and socio-economic development that face.Water treatment facilities category can be divided mainly into sewage disposal
Equipment, original sub-block equipment, purifier, filter plant, ultrapure water apparatus this several major class etc..Traditional water process adsorbing separation dress
Set and be primarily present complicated, manufacturing cost is high, using it is complicated the defects of.More importantly as the filter membrane of core component,
Its generally high cost, it is inconvenient to replace, and service life is short.
Ceramic membrane, also known as inorganic ceramic membrane are prepared and the anisotropic membrane of formation through special process with inorganic ceramic material.
Ceramic membrane is broadly divided into two kinds of tubular ceramic membrane and flaky pottery film.Tubular ceramic membrane tube wall gathers micropore, under pressure,
Material liquid flows in membrane tube or on the outside of film, and small-molecule substance (or liquid) penetrates film, and macromolecular substances (or solid) envelope is cut
It stays, to reach the purpose of separation, concentration, purifying and environmental protection.Gather micropore on flaky pottery film (or being ceramic membrane),
According within the scope of certain membrane aperture, then permeability is different for the material molecule diameter difference of infiltration, with the pressure difference of film both sides
For driving force, film is filter medium, under certain pressure effect, when feed liquid flows through film surface, only allows water, inorganic salts, small
Molecular substance penetrates film, and the macromolecular substances such as suspended matter, glue and microorganism in water is prevented to pass through.There is ceramic membrane separation to imitate
Rate height, effect stability, chemical stability be good, acid and alkali-resistance, organic solvent-resistant, resistance to bacterium, high temperature resistant, antipollution, high mechanical strength, again
Numerous advantages such as natural disposition energy is good, separation process is simple, low energy consumption, simple and convenient operation and maintenance, service life length, have been successfully applied to
The various fields such as food, beverage, the processing of plant (medicine) object depth, biological medicine, fermentation, fine chemistry industry.
Flyash is a kind of grey material, mainly by mineral such as clay mineral, quartz, calcite, pyrite in coal
Equal inorganic components calcining generates.Therefore chemical composition of PCA is with Al2O3And SiO2Based on, in addition also CaO, Fe2O3、MgO、
Na2O、K2O、SO3And without the complete organic substance that burns.Fly ash grain structure spherical in shape and there is a large amount of micropore, activity
High, large specific surface area is easy grinding, and when product is made, calcination temperature is low, saves energy consumption, is a kind of excellent raw material.
Due to Al2O3, zirconium oxide etc. makes the material price of ceramic membrane costly, while being desirable making ceramic membrane
High temperature sintering causes production cost high, it is difficult to carry out industrialization, therefore is only obtained just in high-end fields such as pharmacy, food, beverages
Step application；However in wastewater treatment, especially field of industrial waste water treatment, since the profit margin of industry itself is low and day output
Greatly, of high cost to put into practical application always if going to handle using ceramic membrane.It is a large amount of for containing in flyash
Al2O3、SiO2Equal substances, if not only can be Ash Utilization at ceramic membrane using coal ash for manufacturing, but also manufactured ceramics
Film will all have potential application at many aspects.Therefore, either all have in terms of environmental protection or in terms of science and technology
Highly important meaning.The present invention is based on the starting point, is developed and is studied.
Invention content
In view of the above technical problems, the present invention provides a kind of ceramic membrane filter absorption processing system and its working methods.
To achieve the goals above, the technical solution adopted in the present invention is：A kind of ceramic membrane filter absorption processing system, by raw material
Tank, circulating pump, more medium filter, ceramic film component, recoil tank, air compressor and several electromagnetism being arranged on pipeline
Valve group at；
The bottom of head tank is divided into two pipelines by solenoid valve V14, a pipeline by solenoid valve V10 realize blowdown or into
Liquid, the arrival end of another piping connection circulating pump；
The outlet end of circulating pump is connect with solenoid valve V01, solenoid valve V02, solenoid valve V03 respectively is divided into three pipelines, electricity
The pipeline of magnet valve V01 settings and the top of head tank connect, the top entry of the pipeline and ceramic film component of solenoid valve V02 settings
End connection, the pipeline of solenoid valve V03 settings and the arrival end of more medium filter connect, and the outlet end of more medium filter passes through
The top entry end of pipeline and ceramic film component that solenoid valve V13 is arranged connects；
The bottom dope outlet end of ceramic film component is connect with solenoid valve V11, solenoid valve V12 respectively is divided into two pipelines,
One pipeline realizes that dope discharge, the pipeline of solenoid valve V11 settings and the top of head tank connect by solenoid valve V12；
The bottom purified liquor outlet end of ceramic film component connect and is divided into solenoid valve V07, solenoid valve V08, solenoid valve V09 respectively
Three pipelines, a pipeline realize that clear liquid is discharged by solenoid valve V09, connect at the top of the pipeline and head tank of solenoid valve V07 settings
It connects, the pipeline of solenoid valve V08 settings is connect with the bottom of recoil tank；
The top of recoil tank is connect with solenoid valve V05, solenoid valve V06 respectively is divided into two pipelines, and a pipeline passes through electromagnetism
Valve V06 realizes that exhaust, the pipeline of solenoid valve V05 settings are connect with air compressor.
The top of ceramic film component forms sampling line by the pipeline that solenoid valve V04 is arranged.
The working method of the ceramic membrane filter absorption processing system of the present invention, main includes filtering adsorption method, specially：
Solenoid valve V01 and solenoid valve V10 is opened, closes other all solenoid valves, open the circulation pump by material liquid or waits locating
Reason liquid self-circulating pump enters in head tank；
Solenoid valve V01, solenoid valve V10 are closed, solenoid valve V14, solenoid valve V02, solenoid valve V11 are opened, at this point, recycling
Under pumping action, pending liquid from head tank come out after by ceramic film component filtration and adsorption treatment, where dope from solenoid valve V11
Pipeline turns again to head tank and waits for adsorption treatment again；After several processing cycles, opens solenoid valve V04 and be sampled point
Analysis closes solenoid valve V11 if detection is qualified, opens solenoid valve V09 and releases clear liquid；Solenoid valve V11 is closed after the completion of processing,
Pipeline discharge where dope from solenoid valve V12；
When pending liquid needs pretreatment, then solenoid valve V02 is closed, open solenoid valve V03, solenoid valve V13, it is pending
Liquid enters back into ceramic film component and is filtered adsorption treatment after first passing around more medium filter pretreatment after being come out from head tank.
The working method of the ceramic membrane filter absorption processing system of the present invention further includes backwash method, specially：
Ceramic membrane micropore, which is blocked, in order to prevent causes adsorption capacity to decline, recoil be in absorbing and filter processing procedure into
Capable, it is first turned on solenoid valve V05, solenoid valve V08, closes solenoid valve V09, solenoid valve V07, air compressor is opened, makes pressure
Contracting air enters in ceramic film component, and under pressure, the substance washed away is brought away from ceramic membrane surface, the micropore weight being blocked
It is new to restore adsorption filtration function；After recoil, solenoid valve V05, solenoid valve V08 are closed, solenoid valve V09 or electromagnetism are reopened
Valve V07 continues adsorption filtration processing, and exhaust is realized by opening solenoid valve V06.
As the preferred technical solution of the present invention, tubular porous ceramic membrane is mounted in the ceramic film component, tubular type is more
Steps are as follows for the preparation method of hole ceramic membrane：
(1), the flyash that power plant fetches is carried out 500 mesh vibrating screens and crosses sieve classification processing；
(2), by 51.1g flyash, 7g kaolin (4000 mesh), 7g starch and 3.5g CaCO3It is put into ball grinder,
With material：Ball is 1：2 mass ratio is added ball and carries out ball milling, Ball-milling Time 2-3h；
(3), the powder after ball milling is put into beaker, 20mL distilled water is added and stirs 15min, seals aging 12h；Then
Batch mixing is poured into the mold of moulding press and be forced into 18MPa, and pressurize is for a period of time, obtains green body, wrapped up and being placed with preservative film
3d；
(4), green body is put into progress temperature programming sintering in high temperature furnace, is risen for 25 DEG C from room temperature with the rate of 0.35 DEG C/min
To 90 DEG C, 60min is kept the temperature, then 300 DEG C are risen to the rate of 0.5 DEG C/min, keep the temperature 60min, makes pore creating material starch fully heat point
Solution forms hole, then rises to 1200 DEG C with the rate of 1 DEG C/min, and keep the temperature 60min, is finally down to the rate of 2 DEG C/min
Room temperature.
Compared with the existing technology, beneficial effects of the present invention performance is as follows：
1), the present invention is from two angles, to overcome present in the ceramic membrane filter absorption processing system of the prior art
Defect.First, by rationally designing the structure composition of ceramic membrane filter absorption processing system, ceramic membrane filter adsorption treatment system
The advantages that system, which has, to be used simply, easy to operate, and equipment manufacturing costs are cheap, and filtration and adsorption treatment is efficient.Meanwhile to ceramics
The core component of membrane filtration absorption processing system --- ceramic membrane is improved, by rationally designing the preparation method of ceramic membrane,
Make the ceramic filter membrane of preparation that there is good absorption property, and there is recyclability, service life is long.
2), the present invention, using starch as pore creating material, improves the porosity and water of porous ceramic film using flyash as primary raw material
Flux；With CaCO3It is sintering aid with kaolin.Meanwhile adding certain amount of CaCO3Main purpose be improve porous ceramic film
Flexural strength；It is to change SiO in flyash to add a certain amount of kaolin2And Al2O3Ratio after high temperature sintering forming properties
Excellent porous ceramic film material.The principal crystalline phase of the porous ceramic film of preparation is mullite crystalline phase, and the porous pottery of mullite crystalline phase
Porcelain film-strength is larger, and principal crystalline phase is the flexural strength up to 1400- of the porous ceramic film of mullite crystalline phase under normal circumstances
1500MPa, the sewage water filtration processing being suitable under larger pressure.
3), the present invention develops inorganic porous ceramic film using flyash, not only improves the utilization rate of flyash, also reduces nothing
The manufacturing cost and raw material tense situation of machine ceramic membrane.By the inorganic porous ceramic film of preparation to industrial wastewater and high-temp waste gas
After being filtered adsorption treatment, problem of environmental pollution can be mitigated, also save big energy and resource, belong to a kind of Novel ring
Technique is protected, the environmental protection concept of the treatment of wastes with processes of wastes against one another is also reached.
Description of the drawings
With reference to embodiments with attached drawing to a kind of ceramic membrane filter absorption processing system and its working method of the present invention
It makes and being discussed further.
Fig. 1 is the structural schematic diagram of the ceramic membrane filter absorption processing system of the present invention.
Fig. 2 is calcination procedure heating curve in preparation method.
Specific implementation mode
Embodiment 1
Refering to Figure 1, the present invention a kind of ceramic membrane filter absorption processing system, by head tank 15, circulating pump 20,
More medium filter 16, ceramic film component 17, recoil tank 18, air compressor 19 and several solenoid valves being arranged on pipeline
Composition.The bottom of head tank 15 is divided into two pipelines by solenoid valve V14, a pipeline by solenoid valve V10 realize blowdown or into
Liquid, the arrival end of another piping connection circulating pump 20.
The outlet end of circulating pump 20 is connect with solenoid valve V01, solenoid valve V02, solenoid valve V03 respectively is divided into three pipelines,
The pipeline of solenoid valve V01 settings is connect with the top of head tank 15, the top of the pipeline and ceramic film component 17 of solenoid valve V02 settings
The pipeline of portion's arrival end connection, solenoid valve V03 settings is connect with the arrival end of more medium filter 16, more medium filter 16
Outlet end is connect by the way that the pipeline of solenoid valve V13 is arranged with the top entry end of ceramic film component 17.
The top of ceramic film component 17 forms sampling line by the pipeline that solenoid valve V04 is arranged.Ceramic film component 17
Bottom dope outlet end is connect with solenoid valve V11, solenoid valve V12 respectively is divided into two pipelines, and a pipeline is real by solenoid valve V12
The pipeline of existing dope discharge, solenoid valve V11 settings is connect with the top of head tank 15.The bottom purified liquor outlet of ceramic film component 17
End is connect with solenoid valve V07, solenoid valve V08, solenoid valve V09 respectively is divided into three pipelines, and a pipeline is realized by solenoid valve V09
Clear liquid is discharged, and the pipeline of solenoid valve V07 settings is connect with the top of head tank 15, pipeline and the recoil tank of solenoid valve V08 settings
18 bottom connection.
The top of recoil tank 18 is connect with solenoid valve V05, solenoid valve V06 respectively is divided into two pipelines, and a pipeline passes through electricity
Magnet valve V06 realizes that exhaust, the pipeline of solenoid valve V05 settings are connect with air compressor 19.
The working method of the ceramic membrane filter absorption processing system of the present invention, main includes filtering adsorption method and recoil side
Method：
1., filtering adsorption method, specially：
Solenoid valve V01 and solenoid valve V10 is opened, closes other all solenoid valves, open the circulation pump 20 by material liquid or waits for
Treatment fluid self-circulating pump 20 enters in head tank 15.
Solenoid valve V01, solenoid valve V10 are closed, solenoid valve V14, solenoid valve V02, solenoid valve V11 are opened, at this point, recycling
Under 20 effect of pump, pending liquid from head tank 15 come out after by 17 filtration and adsorption treatment of ceramic film component, dope is from solenoid valve
Pipeline where V11 turns again to head tank 15 and waits for adsorption treatment again；After several processing cycles, solenoid valve V04 is opened
It is sampled analysis, if detection is qualified, closes solenoid valve V11, solenoid valve V09 is opened and releases clear liquid；It is closed after the completion of processing
Solenoid valve V11, pipeline discharge where dope from solenoid valve V12.
When pending liquid needs pretreatment, then solenoid valve V02 is closed, open solenoid valve V03, solenoid valve V13, it is pending
Liquid enters back into ceramic membrane group after first passing around more medium filter 16 (using commercial product) pretreatment after being come out from head tank 15
Part 17 is filtered adsorption treatment.
2., backwash method, specially：
Ceramic membrane micropore, which is blocked, in order to prevent causes adsorption capacity to decline, recoil be in absorbing and filter processing procedure into
Capable, it is first turned on solenoid valve V05, solenoid valve V08, closes solenoid valve V09, solenoid valve V07, air compressor 19 is opened, makes
Compressed air enters in ceramic film component 17, and under pressure, the substance washed away is brought away from ceramic membrane surface, and what is be blocked is micro-
Again restore to absorb and filter function in hole；After recoil, close solenoid valve V05, solenoid valve V08, reopen solenoid valve V09 or
Solenoid valve V07 continues adsorption filtration processing, and exhaust is realized by opening solenoid valve V06.
In the ceramic membrane filter absorption processing system of the present invention, three tubular porous potteries are mounted with inside ceramic film component 17
Porcelain film, under the action of pump pressure, liquid enters from the outside of each ceramic membrane inside it, and retention substance richness product is in ceramic membrane
Outside, to realize filtration and adsorption treatment.
Embodiment 2
Steps are as follows for the preparation method of tubular porous ceramic membrane：
(1), the flyash that power plant fetches is carried out 500 mesh vibrating screens and crosses sieve classification processing；
(2), by 51.1g flyash, 7g kaolin (4000 mesh), 7g starch and 3.5g CaCO3It is put into ball grinder,
With material：Ball is 1：2 mass ratio is added ball and carries out ball milling, Ball-milling Time 2.5h；
(3), the powder after ball milling is put into beaker, 20mL distilled water is added and stirs 15min, seals aging 12h；Then
Batch mixing is poured into the mold of moulding press and be forced into 18MPa, and pressurize is for a period of time, obtains green body, wrapped up and being placed with preservative film
3d；
(4), green body is put into high temperature furnace progress temperature programming sintering, since starch is thermally decomposed completely at 283 DEG C, because
This, idiosome needs that soaking time is arranged at such a temperature, tubular porous ceramic membrane sintering heating curve as shown in Fig. 2, with
The rate of 0.35 DEG C/min rises to 90 DEG C from 25 DEG C of room temperature, keeps the temperature 60min, and it is the water of green body of fully going out to keep the temperature purpose at this time
Point, then 300 DEG C are risen to the rate of 0.5 DEG C/min, 60min is kept the temperature, heat preservation is in order to enable pore creating material starch is fully warm at this time
It is decomposed to form hole, then rises to 1200 DEG C with the rate of 1 DEG C/min, and keep the temperature 60min, heat preservation at this time mainly keeps particle complete
Clean burn knot is finally down to room temperature with the rate of 2 DEG C/min.
Embodiment 3
The feature performance benefit of tubular porous ceramic membrane is mainly reflected in the following aspects：
1. porous ceramic film has good absorption property
1.1 absorption methylene blue solutions
1.1.1 maximum adsorption rate measures
Dose volume is the methylene blue solution of a concentration of 1mg/L of 1000mL；Cyclically by the methylene blue solution prepared
At 1 ceramic membrane filter absorption processing system of embodiment (loading the tubular porous ceramic membrane of the preparation of embodiment 2, similarly hereinafter) absorption
Reason.After certain number, the absorbance of filtrate is measured, and compared with the preliminary examination absorbance of methylene blue solution.Pass through experiment
It can obtain：Porous ceramic film illustrates porous ceramic film to the eliminating rate of absorption up to 90.1% of methylene blue solution processing for the first time
Adsorption treatment effect it is preferable, do not need to carry out that adsorption treatment is filtered for multiple times.When the 3rd membrane filtration, removal rate increases slow
Slowly, it is 93.6% that removal rate, which reaches maximum value, after the 4th membrane filtration.
1.1.2 maximal absorptive capacity measures
The methylene blue solution that the several pieces volume that preparation same concentrations are 1mg/L is 1000mL, by 1 ceramics of embodiment
Membrane filtration absorption processing system adsorption treatment measures the absorbance of filtrate after adsorbing every time.It can be obtained by repeating experiment：With
The increase of membrane filtration same concentrations methylene blue solution volume, corresponding filtering solution absorbance become larger, removal rate also phase
That answers tapers into.When the filtering total volume of the methylene blue solution of a concentration of 1mg/L reaches 12000mL, corresponding removal
Rate is almost unchanged, and when removal rate is less than 10%, as film loses adsorption effect, therefore film adsorbs 1mg/L methylene blue solution volumes
About 8000mL.
1.2 absorption dyeing waste waters
Further to probe into the effect of porous ceramics film process actual dying, certain reference is provided to commercial Application
Value takes supernatant liquor, 1 ceramic membrane filter adsorption treatment of embodiment is utilized after 20 times of dilution after taking a small amount of dyeing waste water to centrifuge
System carries out adsorption treatment to it.In research the waste water of actual treatment be ZHEJIANG MIZUDA PRINTING＆DYEING GROUP CO.,LTD not
Dyeing waste water through any processing.By experiment, show that the porous ceramics film process dilutes the percent of decolourization of 20 times of dyeing waste water
It is 31% or so for 42% or so, COD removal rates.
2. porous ceramic film has recyclability
Porous ceramic film after absorption is placed in ethanol solution and carries out sonic oscillation, liquid is precipitated as time increases
Color gradually deepen, by measuring its absorbance, it is also seen that its absorbance is gradually increasing.After 60min, the suction of liquid is precipitated
Luminosity is not further added by.Show, by certain means (sonic oscillation in such as ethanol solution), porous ceramic film can be made to adsorb
Substance be precipitated again, to realize regeneration and the recycling of porous ceramic film.
3. excellent physical properties
By detection it is found that the average pore size that embodiment 2 is sintered the tubular porous ceramic membrane being prepared is 1 μm, hole
Rate is 37.2%, flexural strength 15.7MPa, and water flux is 1201L/ (m2HMPa), water absorption rate 22.61% is acidproof
Degree is 95.5%, fastness to alkali 94.1%, bulk density 1.74g/mL, and the overall diameter of tubular membrane is 20mm, and interior diameter is
10mm, thickness 10mm, length 250mm, quality is 68g, sintering shrinkage 2.7% after sintering.
The above content is just an example and description of the concept of the present invention, affiliated those skilled in the art
It makes various modifications or additions to the described embodiments or substitutes by a similar method, without departing from invention
Design or beyond the scope defined by this claim, be within the scope of protection of the invention.
Claims (6)
1. a kind of ceramic membrane filter absorption processing system, which is characterized in that by head tank (15), circulating pump (20), multimedium mistake
Filter (16), ceramic film component (17), recoil tank (18), air compressor (19) and several solenoid valves being arranged on pipeline
Composition；
The bottom of head tank (15) is divided into two pipelines by solenoid valve V14, a pipeline by solenoid valve V10 realize blowdown or into
Liquid, the arrival end of another piping connection circulating pump (20)；
The outlet end of circulating pump (20) is connect with solenoid valve V01, solenoid valve V02, solenoid valve V03 respectively is divided into three pipelines, electricity
The pipeline of magnet valve V01 settings is connect with the top of head tank (15), the pipeline and ceramic film component (17) of solenoid valve V02 settings
Top entry end connects, and the pipeline of solenoid valve V03 settings is connect with the arrival end of more medium filter (16), more medium filter
(16) outlet end is connect by the way that the pipeline of solenoid valve V13 is arranged with the top entry end of ceramic film component (17)；
The bottom dope outlet end of ceramic film component (17) is connect with solenoid valve V11, solenoid valve V12 respectively is divided into two pipelines,
One pipeline realizes that dope discharge, the pipeline of solenoid valve V11 settings are connect with the top of head tank (15) by solenoid valve V12；
The bottom purified liquor outlet end of ceramic film component (17) connect and is divided into solenoid valve V07, solenoid valve V08, solenoid valve V09 respectively
Three pipelines, a pipeline realize that clear liquid is discharged by solenoid valve V09, the top of the pipeline and head tank (15) of solenoid valve V07 settings
Portion connects, and the pipeline of solenoid valve V08 settings is connect with the bottom of recoil tank (18)；
The top of recoil tank (18) is connect with solenoid valve V05, solenoid valve V06 respectively is divided into two pipelines, and a pipeline passes through electromagnetism
Valve V06 realizes that exhaust, the pipeline of solenoid valve V05 settings are connect with air compressor (19).
2. ceramic membrane filter absorption processing system as described in claim 1, which is characterized in that the top of ceramic film component (17)
Sampling line is formed by the pipeline that solenoid valve V04 is arranged.
3. ceramic membrane filter absorption processing system as described in claim 1, which is characterized in that in the ceramic film component (17)
It is mounted with tubular porous ceramic membrane, steps are as follows for the preparation method of tubular porous ceramic membrane：
(1), the flyash that power plant fetches is carried out 500 mesh vibrating screens and crosses sieve classification processing；
(2), by 51.1g flyash, 7g kaolin (4000 mesh), 7g starch and 3.5g CaCO3It is put into ball grinder, with material：
Ball is 1：2 mass ratio is added ball and carries out ball milling, Ball-milling Time 2-3h；
(3), the powder after ball milling is put into beaker, 20mL distilled water is added and stirs 15min, seals aging 12h；Then it will mix
Material pours into the mold of moulding press and is forced into 18MPa, and pressurize is for a period of time, obtains green body, is wrapped up with preservative film and places 3d；
(4), green body is put into progress temperature programming sintering in high temperature furnace, 90 is risen to for 25 DEG C from room temperature with the rate of 0.35 DEG C/min
DEG C, 60min is kept the temperature, then 300 DEG C are risen to the rate of 0.5 DEG C/min, keeps the temperature 60min, pore creating material starch is made fully to thermally decompose shape
At hole, 1200 DEG C then are risen to the rate of 1 DEG C/min, and keep the temperature 60min, room temperature is finally down to the rate of 2 DEG C/min.
4. ceramic membrane filter absorption processing system as claimed in claim 3, which is characterized in that the tubular porous pottery being prepared
The average pore size of porcelain film is 1 μm, porosity 37.2%, flexural strength 15.7MPa, and water flux is 1201L/ (m2·h·
MPa), water absorption rate 22.61%, acid resistance 95.5%, fastness to alkali 94.1%, bulk density 1.74g/mL, tubular membrane
Overall diameter be 20mm, interior diameter 10mm, thickness 10mm, length 250mm, after sintering quality be 68g, sintering shrinkage
It is 2.7%.
5. the working method of ceramic membrane filter absorption processing system as described in claim 1, which is characterized in that main includes filtering
Adsorption method, specially：
Solenoid valve V01 and solenoid valve V10 is opened, closes other all solenoid valves, open the circulation pump (20) by material liquid or waits locating
Liquid self-circulating pump (20) is managed to enter in head tank (15)；
Solenoid valve V01, solenoid valve V10 are closed, solenoid valve V14, solenoid valve V02, solenoid valve V11 are opened, at this point, in circulating pump
(20) under acting on, pending liquid from head tank (15) come out after by ceramic film component (17) filtration and adsorption treatment, dope is from electricity
Pipeline where magnet valve V11 turns again to head tank (15) and waits for adsorption treatment again；After several processing cycles, electromagnetism is opened
Valve V04 is sampled analysis, if detection is qualified, closes solenoid valve V11, opens solenoid valve V09 and releases clear liquid；After the completion of processing
Solenoid valve V11 is closed, pipeline discharge where dope from solenoid valve V12；
When pending liquid needs pretreatment, then solenoid valve V02 is closed, opens solenoid valve V03, solenoid valve V13, pending liquid is certainly
Head tank (15) enters back into ceramic film component (17) and is filtered after first passing around more medium filter (16) pretreatment after coming out
Adsorption treatment.
6. the working method of ceramic membrane filter absorption processing system as claimed in claim 5, which is characterized in that further include recoil side
Method, specially：
Ceramic membrane micropore, which is blocked, in order to prevent causes adsorption capacity to decline, and recoil is carried out in absorbing and filter processing procedure
, it is first turned on solenoid valve V05, solenoid valve V08, closes solenoid valve V09, solenoid valve V07, air compressor (19) is opened, makes
Compressed air enters in ceramic film component (17), and under pressure, the substance washed away is brought away from ceramic membrane surface, is blocked
Micropore restores to absorb and filter function again；After recoil, solenoid valve V05, solenoid valve V08 are closed, solenoid valve V09 is reopened
Or solenoid valve V07 continues adsorption filtration processing, and exhaust is realized by opening solenoid valve V06.
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