CN110064305A - A kind of device and application method improving film cycles of concentration and dope concentration - Google Patents
A kind of device and application method improving film cycles of concentration and dope concentration Download PDFInfo
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- CN110064305A CN110064305A CN201910474898.9A CN201910474898A CN110064305A CN 110064305 A CN110064305 A CN 110064305A CN 201910474898 A CN201910474898 A CN 201910474898A CN 110064305 A CN110064305 A CN 110064305A
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- dope
- clear liquid
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- 239000007788 liquid Substances 0.000 claims abstract description 187
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- 230000008569 process Effects 0.000 claims description 28
- 238000000926 separation method Methods 0.000 claims description 11
- 238000000108 ultra-filtration Methods 0.000 claims description 8
- 238000001471 micro-filtration Methods 0.000 claims description 6
- 238000001728 nano-filtration Methods 0.000 claims description 6
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
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- 150000001413 amino acids Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229930014669 anthocyanidin Natural products 0.000 description 1
- 150000001452 anthocyanidin derivatives Chemical class 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/027—Nanofiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/12—Controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/145—Ultrafiltration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/147—Microfiltration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/22—Controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/58—Multistep processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
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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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- 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
- B01D69/06—Flat membranes
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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
- B01D69/08—Hollow fibre membranes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nanotechnology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention relates to a kind of device for improving film cycles of concentration and dope concentration, the combination including clear liquid series block, dope series block or clear liquid series block and dope series block；Clear liquid series block is successively gone here and there by multistage filter tank by clear liquid outlet pipe and/or parallel connection is formed, afterbody filter tank is connect by clear liquid outlet pipe with clear liquid liquid outlet system, in addition to first order filter tank, the liquid feeding end for going out dope end and passing through any first-level filtering tank before dope return pipe is back to of every level-one filter tank；Dope series block is successively gone here and there by multistage filter tank by dope outlet pipe and/or parallel connection is formed, afterbody filter tank is connect by dope outlet pipe with dope liquid outlet system, the liquid feeding end for going out any first-level filtering tank before clear liquid end is back to by clear liquid return pipe of afterbody filter tank, the clear liquid end out of remaining every level-one filter tank pass through clear liquid outlet pipe and drain into clear liquid liquid outlet system；In clear liquid series block and dope series block, filter membrane is provided in every level-one filter tank.
Description
Technical field
The present invention relates to environmental protection and industrial production technology fields, and in particular to a kind of raising film cycles of concentration and dope concentration
Device and application method.
Background technique
Film is a kind of high molecular material with special Selective Separation function.Material can be separated into two be not communicated with
Point, so that one such or several substances is penetrated, and other substances are separated, membrane separation technique with it efficiently, energy conservation,
The characteristics such as environmental protection and high-purity separation, have been widely used in the fields such as medicine, chemical industry, electronics, food, environmental protection, have become future
One of most great industrial technology.Membrane separation technique is used cuts with the filter types such as traditional " dead-end filtration " or " filter cake, which is put up a bridge, to be filtered "
Right different dynamic " cross-flow filtration " or " tangential flow filtration " mode: i.e. driven by pressure, material liquid is in film surface with certain
Flow velocity flow at high speed, small-molecule substance (liquid) penetrates film along direction normal thereto, and macromolecular substances or solid be rejected by,
And it is rushed out film surface rapidly, so that material is achieved the purpose that separation, concentration and purifying.
There are three types of modes: open system, closed system, half-open semi-closure system for the basic operation of existing liquid filtering complexes
System.
Wherein open system is commonly used in the feasibility Experiment of technique, and exemplary operational flows figure is as shown in Fig. 2, F table in figure
Show that flowmeter, P1/P2 indicate that pressure gauge, Q1 indicate that penetrating fluid, Q2 indicate trapped fluid, the cross-flow rate and operating pressure of the system
It is provided by single water pump, the disadvantage is that: it requires trapped fluid rising to operating pressure, system by atmospheric pressure at pump inlet every time
Energy loss it is larger, and due to feed liquid constantly pass through pump and each valve, influence may cause on the property of charging.
Wherein the typical process of closed system is as shown in figure 3, F indicates that flowmeter, P1/P2 indicate pressure gauge, Q1 table in figure
Show stoste, Q2 indicates phegma, and Q3 indicates penetrating fluid, and the cross-flow velocity of the system and operating pressure are by low discharge, Gao Yangcheng
The circulating pump of feed pump and high flow capacity, low lift maintains jointly, reduces the big disadvantage of open system energy loss, however this
The negative effect of system be also it is fairly obvious, the feed concentration in circulation loop is continuously increased, and accelerates fouling membrane, is reduced
The filtration flux of film.
Wherein half-open semi-closure system is a kind of common system of industrial application, not only overcome open system energy consumption it is high lack
Point is constantly increased prevented also from feed concentration in component, which generally uses three kinds of modes of operation: interval, continuous and multistage
Continuously.Intermittently operated flow chart is as shown in figure 4, F indicates that flowmeter, P1/P2 indicate that pressure gauge, Q1 indicate penetrating fluid, Q2 in figure
Indicate that phegma, Q3 are indicated trapped fluid, the form of material fluid bath returned to using part trapped fluid, reduces the quick of in-system concentration
Increase；Continuous operation process is as shown in figure 5, F indicates that flowmeter, P1/P2 indicate that pressure gauge, Q1 indicate penetrating fluid, Q2 table in figure
Show phegma, Q3 indicates trapped fluid, and filtration circuit is constantly discharged in a part liquid that shuts off, and can not achieve high power concentration；It is multistage continuous
Operational flowchart under given feed pressure, passes through tune as shown in fig. 6, this mode can achieve higher cycles of concentration
The retention lateral pressure of section afterbody circulation can achieve the purpose that adjusting filter pressure is poor, and series is more, and filtering rate is just
Under intermittently operated, this mode of operation, the membrane area of unit can get higher filtration flux, but in use process
In still have limitation.
Summary of the invention
It requires trapped fluid rising to operation by atmospheric pressure at pump inlet every time to solve to exist using open system
The energy loss of pressure, system is larger, and since feed liquid constantly passes through pump and each valve, may cause to the property of charging
The shortcomings that influence；And that there are negative effects is fairly obvious using closed system, the feed concentration in circulation loop is continuously increased,
The shortcomings that accelerating fouling membrane, reducing the filtration flux of film.Present applicant proposes a kind of raising film cycles of concentration and dope are dense
The device and application method of degree, solve energy loss existing in the prior art is larger, feed properties may cause with influence,
Negative effect is fairly obvious, feed concentration in circulation loop is continuously increased, the filtration flux for accelerating fouling membrane, reducing film
The problem of；Solve sea water desalination, landfill leachate desalination, protein solution with high salt separation, concentration and polypeptide, ammonia simultaneously
Base acid concentration etc., hydrometallurgy waste water or hydrometallurgical processes liquid, gelatin concentration, animals and plants extracting solution and fermentation liquid concentration etc.
The concentration of high concentration stoste, separation, purification art: film filtering accuracy is low, is able to achieve material cycles of concentration, but interception rate is extremely difficult to
It is required that being easy " running material "；Film filtering accuracy is high, and the technical problem of " not going out liquid " is be easy to cause since material concentration is excessive；Simultaneously
The characteristics of effectively reducing big infiltration stillness of night fluctuation of concentration or linear change.
To achieve the goals above, the present invention provides a kind of device for improving film cycles of concentration and dope concentration, including clear
The combination of liquid series block, dope series block or clear liquid series block and dope series block；The clear liquid series block is led to by multistage filter tank
Cross clear liquid outlet pipe successively go here and there and/or it is in parallel formed, afterbody filter tank is connect by clear liquid outlet pipe with clear liquid liquid outlet system, removes the
Outside level-one filter tank, the liquid feeding end for going out dope end and passing through any first-level filtering tank before dope return pipe is back to of every level-one filter tank；
The dope series block is successively gone here and there by multistage filter tank by dope outlet pipe and/or parallel connection is formed, and afterbody filter tank passes through dope
Outlet pipe is connect with dope liquid outlet system, and afterbody filter tank goes out any first-level filtering before clear liquid end is back to by clear liquid return pipe
The liquid feeding end of tank, the clear liquid end out of remaining every level-one filter tank pass through clear liquid outlet pipe and drain into clear liquid liquid outlet system；The clear liquid string
Join in section and dope series block, is provided with filter membrane in every level-one filter tank.
The working principle and process of the technical program are as follows: according to actual needs, the series of filter tank is set, when in use,
Stoste to be treated is passed into first order filter tank by stoste feed liquor system, is divided into stoste clearly by first order filter tank
Liquid and dope, dope enter dope series block, and clear liquid enters clear liquid series block；Enter the dope of dope series block again
Dope is separated into dope and clear liquid step by step, the dope of terminal is discharged from dope outlet tube, and the clear liquid of terminal is from clear liquid return pipe
It returns in the first order filter tank in multistage filter tank, the clear liquid on filter tanks at different levels is discharged by clear liquid discharge pipe；It connects into clear liquid
Clear liquid is separated into dope and clear liquid step by step again by the clear liquid of section, and the clear liquid of terminal is discharged from clear liquid outlet tube, on filter tanks at different levels
Dope returned in stoste feed liquor system by dope return pipe.Wherein the conveying of liquid provides power source by delivery pump.
Compared with traditional process unit, traditional process unit directlys adopt the single mode for improving osmotic pressure to mention
The infiltration capacity of high clear liquid, all films are under high pressure, high concentration environment and run, since delivery pump does work to all liq,
Energy consumption is quite high, while all films are run in higher concentrations, and the solvent osmotic resistance to be overcome is also very big, and membrane flux is very low, leads
Technique is caused to use uneconomical.And the unique process characteristic of the application is whole set process, on the one hand using different or identical mistake
The film for filtering precision carries out clear liquid series connection (while different and same precision films can also be used to intersect series connection), allows high concentration feed liquid
Filtering load it is different degrees of be assigned to filter tanks at different levels, reduce the difficulty in filtration of every grade of filter membrane, reach higher dense on the whole
Demagnification number；On the other hand independent dope series block is set, allow dope using the half-open semi-closure continuous operation technique of series multistage by
Grade improves material concentration, runs most of filter membrane under low concentration, stablizes the membrane flux of entire enriching section, afterbody is adopted
The method to be flowed back with clear liquid reduces influence of the very high film surface concentration clear liquid to entire enriching section clear liquid quality.
All films in traditional open circulation or intermittent half-open semi-closure system are run under high concentration environment, with
The continuous progress of concentration process, film surface concentration is higher and higher, film surface excessive concentration, makes to run under film long time high concentration environment,
Single-stage cycles of concentration is excessively high, and quickly, the concentration for improving dope is difficult flux depression.The application utilizes above-mentioned half-open semi-closure
Multistage continuous operation technique connects to form independent enriching section, makes to be circulated in film using in first order dope with subsequent stages dope
The solution concentration of face dope side increases step by step, and most films is allowed all to run at low concentrations, and last dope concentrates on independent dense
Contracting section high pressure is condensed into the higher concentrate discharge system of concentration, is compared with the traditional technology, in high-salt wastewater field, identical
Configuration and identical operating index under, the application can improve 15% or more salinity, and can guarantee that long-play film is logical
The stabilization of amount.The application has film clear liquid flux big, and the reflux of high concentration clear liquid will not be mixed into clear liquids at different levels before enriching section, clear liquid
Quality is higher, needs to concentrate the dope accounting of concentration small, good economy performance.
Traditional open circulation or intermittent half open and close system are that whole system is run from low concentration to high concentration, every batch of object
Material concentration little difference is responsible for the fluctuation of system items operating index.The application is multistage continuous using above-mentioned half-open semi-closure
Operation process is connected using first order clear liquid with subsequent stages clear liquid, and subsequent stages dope returns to the previous stages in addition to the same level,
To dilute the feed liquor of front, original liquid concentration can sufficiently be overcome to fluctuate the influence to system clear liquid quality out；Simultaneously using different or
The film of identical filtering accuracy carries out clear liquid series connection, allow high concentration feed liquid filtering load it is different degrees of be assigned at different levels, reduce every
The difficulty in filtration of grade filter membrane, reaches higher cycles of concentration on the whole；The first order is returned to by control enriching section clear liquid simultaneously
Amount and independent enriching section dope load, to achieve the purpose that whole system cycles of concentration is adjustable.In high concentration
When chitosan is extracted, purified, being concentrated, the application can be realized the effect of 4 times of concentration under the same conditions, and traditional open type is followed
Ring or intermittent half-open semi-closure system can only at most be concentrated 1 times.
Traditional open circulation or intermittent half-open semi-closure system are that whole system is run from low concentration to high concentration, film surface
The shortcomings that concentration is run under high pressure, be easy to cause low clear liquid average flux, clear liquid poor quality, cycles of concentration very little.The application
Connect to form independent enriching section using clear liquid series connection and dope, the clear liquid of the afterbody of enriching section return previous stage or this section with
Preceding at different levels and clear liquid series block first order subsequent stages dope returns to previous stage or this section pervious at different levels, increases previous stages
The internal circulating load of membranous system, this is quite obvious to film surface gel or film surface resistance scouring effect, by adjusting dope series block clear liquid
With the regurgitant volume of clear liquid series block reflux at different levels, each section of film surface pollution situation before reducing keeps whole system membrane flux bigger, energy
Enough reach bigger cycles of concentration, cycles of concentration adjusts technique and is much better than traditional handicraft device.
Traditional open circulation or intermittent half-open semi-closure system stoste enter totally concentration raising after system, and feed liquid is dense
Liquid, which is formed under gel resistance, to be difficult under low pressure through film, so flux very little, technology enforcement difficulty is very big.The application utilizes
Simultaneously independent dope enriching section is arranged in plural parallel stage or series connection, and the clear liquid of enriching section returns to previous stage or this section is pervious at different levels, with
The feed liquor of front is diluted, therefore, no matter feed liquid environment is poor again, and the ratio by adjusting dope phegma can carry out stoste dilute
It releases, and can ensure certain membrane flux by the concatenated low concentration active section of leading portion；The application is easy to penetrate to stoste dilution
Film, it is applied widely.
Further, a kind of device improving film cycles of concentration and dope concentration, including clear liquid series block and dope series connection
The combination of section；The clear liquid series block is successively gone here and there by multistage filter tank by clear liquid outlet pipe and/or parallel connection is formed, afterbody filter tank
It is connect by clear liquid outlet pipe with clear liquid liquid outlet system, the dope end that goes out of first order filter tank is connect with dope series block, remaining each
The liquid feeding end for going out dope end and passing through any first-level filtering tank before dope return pipe is back to of grade filter tank；The dope series block by
Multistage filter tank is successively gone here and there by dope outlet pipe and/or formation in parallel, afterbody filter tank go out liquid system by dope outlet pipe and dope
System connection, the liquid feeding end for going out any first-level filtering tank before clear liquid end is back to by clear liquid return pipe of afterbody filter tank are remaining
The clear liquid end out of every level-one filter tank passes through clear liquid outlet pipe and drains into clear liquid liquid outlet system.
Further, the structure of the filter membrane is plate membrane, rolled film, tubular type, any one in hollow-fibre membrane；Institute
Stating filter membrane is any one in microfiltration membranes, ultrafiltration membrane, nanofiltration membrane and reverse osmosis membrane.
Further, higher level's filter tank of the clear liquid return pipe and dope return pipe and the filter tank that are connected on the filter tank connects
It is logical, inner loop pipeline is also connected on the filter tank.Clear liquid and filtrate i.e. in the application not only may return in stoste, may be used also
To return in higher level's filter tanks at different levels separating and filtering again, it can also realize interior circulation, the reflux in the application is furthermore achieved
The regulatory function of ratio.The application can enable the filtrate after being separated original by connecting inner loop pipeline on filter tank
Separation again is carried out in filter tank, improves dope concentration.Simultaneously in cyclic process, dope and clear liquid may be implemented all to return
It returns, the effect of part return also may be implemented；It can also realize that part returns to the same level simultaneously, partially return to other effects at different levels
Fruit；Circulation line with stoste feed liquor system connectivity can also be set simultaneously, pass through the circulation pipe with stoste feed liquor system connectivity
Road makes dope and clear liquid at different levels realize the effect for realizing recycling back to stoste feed liquor system；It simultaneously can in cyclic process
To realize that the ratio for adjusting every grade of clear liquid and dope realizes the adjusting of whole set process and final liquid solutes content out, wherein adjusting back
Stream ratio can be 1: 1, be also possible to 2: 1, and according to any ratio of process requirement.
Further, the filter tank can also be using appointing in parallel, series connection and parallel combination connection type
It anticipates one kind；The series of the filter tank is 2 grades or more.No matter using series connection or in parallel or sections in series part in parallel company
Connect mode, the technical effect being able to achieve in the application.The filter tank series in the application is 2 grades, 3 grades, 4 grades, 5 grades or more simultaneously
, the adjustable function of the device is furthermore achieved.
Further, including both dope series block and clear liquid series block implement membrane separation process and individually reality simultaneously
Apply two kinds of embodiments of membrane separation process.The application in use can be using only dope series block without the use of clear liquid
Series block also can be used alone clear liquid series block without the use of dope series block, naturally it is also possible to clear liquid series block and dope
Both series blocks use simultaneously, the further expansion use scope of the device.
Further, the operation process of the device include open operational process, it is closed operation process, half-open half-closed
Any one or more combination in operational process；The mode of operation of the device include intermittent, continous way, Multistage continuous,
Any one or more combination in multi-stage batch formula.
Further, the device is molten in micro-filtration (MF), ultrafiltration (UF), nanofiltration (NF) and reverse osmosis (RO) UF membrane high concentration
The application of the substance of different component is separated in liquid.
Further, the solute in the highly concentrated solution includes that organic matter, inorganic matter, organic matter and inorganic matter arbitrarily compare
Example mixing mixture in any one or more；Solvent in the highly concentrated solution includes organic solvent, water, You Jirong
Any one or more in the mixture that agent is mixed with one arbitrary proportion of water.For example, wherein highly concentrated solution includes high concentration
Saline solns, hydrometallurgy waste water or hydrometallurgical processes liquid, rubbish exudation high-salt wastewater, protein solution with high salt and egg
It is white polypeptide, amino acid, high concentration animal and plant glue (gelatin, donkey-hide gelatin etc.) or chemical synthesis colloid, solid suspension solution, highly concentrated
Degree fruit juice, Chinese medicine impregnate the healthy medicated wine of formation, high concentration plant extraction liquid or animal extracting solution and all kinds of hairs in drinks
Zymotic fluid etc..Wherein organic solvent includes methanol, ethyl alcohol, propyl alcohol etc..
Further, the concentration of the highly concentrated solution is 0-80%.Including 2%, 5%, 8% etc..
In conclusion compared with the prior art, the invention has the advantages that:
(1) the unique process characteristic of the application is whole set process, on the one hand using different or identical filtering accuracy
Film carries out clear liquid series connection, allow high concentration feed liquid filtering load it is different degrees of be assigned to filter tanks at different levels, reduce the mistake of every grade of filter membrane
Difficulty is filtered, reaches higher cycles of concentration on the whole；On the other hand independent dope series block is set, allows dope using series connection
Multistage half-open semi-closure continuous operation technique improves material concentration step by step, runs most of filter membrane under low concentration, stablizes whole
The membrane flux of a enriching section, afterbody are clear to entire enriching section using the very high film surface concentration clear liquid of method reduction of clear liquid reflux
The influence of liquid quality.
(2) the application utilizes above-mentioned half-open semi-closure multistage continuous operation technique, using in first order dope and subsequent stages
Dope connects to form independent enriching section, increases the solution concentration for being circulated in film surface dope side step by step, most films is allowed all to exist
It is run under low concentration, last dope concentrates on independent enriching section high pressure and is condensed into the higher concentrate discharge system of concentration, with biography
The technology of system is compared, and in high-salt wastewater field, under identical configuration and identical operating index, the application can improve salinity
15% or more, and can guarantee the stabilization of long-play membrane flux.The application has film clear liquid flux big, and high concentration clear liquid returns
Stream will not be mixed into clear liquids at different levels before enriching section, and clear liquid quality is higher, need to concentrate the dope accounting of concentration small, good economy performance.
(3) the application uses above-mentioned half-open semi-closure multistage continuous operation technique, clear using first order clear liquid and subsequent stages
Liquid series connection, the previous stages that subsequent stages dope returns in addition to the same level can sufficiently overcome original liquid concentration to dilute the feed liquor of front
Fluctuate the influence to system clear liquid quality out；Clear liquid series connection is carried out using the film of similar and different filtering accuracy simultaneously, is allowed highly concentrated
Degree feed liquid filtering load it is different degrees of be assigned at different levels, reduce the difficulty in filtration of every grade of filter membrane, reach on the whole higher
Cycles of concentration；The amount of the first order and the load of independent enriching section dope are returned to by control enriching section clear liquid simultaneously, to reach
The purpose adjustable to whole system cycles of concentration.When high concentration chitosan extracts, purifies, is concentrated, under the same conditions
The application can be realized the effect of 4 times of concentration, and traditional open cycle or intermittent half-open semi-closure system at most can only be dense
1 times of contracting.
(4) the application connects to form independent enriching section using clear liquid series connection and dope, the clear liquid of the afterbody of enriching section
At different levels and clear liquid series block first order subsequent stages dope returns to previous stage before return previous stage or this section or this section pervious
It is at different levels, the internal circulating load of previous stages membranous system is increased, this is quite obvious to film surface gel or film surface resistance scouring effect, passes through
The regurgitant volume of dope series block clear liquid and clear liquid series block phegmas at different levels is adjusted, each section of film surface pollution situation before reducing makes
Whole system membrane flux is bigger, can reach bigger cycles of concentration, and cycles of concentration adjusts technique and is much better than traditional handicraft device.
(5) using plural parallel stage or series connection and independent dope enriching section is arranged in the application, and the clear liquid of enriching section returns previous
Grade or this section it is pervious at different levels, to dilute the feed liquor of front, therefore, no matter feed liquid environment is poor again, pass through adjust phegma ratio
Example can be diluted stoste, and can ensure certain membrane flux by the concatenated low concentration active section of leading portion；The application
Stoste dilution is easy to through film, it is applied widely.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram for the device for improving film cycles of concentration and dope concentration in the present invention；
Fig. 2 is the open architecture schematic diagram in traditional technology；
Fig. 3 is the closed architecture schematic diagram in traditional technology；
Fig. 4 is the intermittent architectural schematic of half-open semi-closure in traditional technology；
Fig. 5 is the half-open semi-closure continous way architectural schematic in traditional technology；
Fig. 6 is the half-open semi-closure Multistage continuous architectural schematic in traditional technology；
In the figure, it is marked as 1- clear liquid series block, 2- filter tank, 3- dope outlet pipe, 4- dope series block, 5- clear liquid return pipe,
6- dope return pipe, 7- filter membrane, 8- clear liquid outlet pipe.
Specific embodiment
All features disclosed in this specification can be with any other than mutually exclusive feature and/or step
Mode combines.
In order to make those skilled in the art more fully understand technical solution of the present invention, below with reference to Fig. 1-6 and specifically
Embodiment the present invention is described in further detail.
Embodiment 1
Referring to Fig.1-6, that Adlerika to be treated is passed into dope series connection by stoste feed liquor system is independent dense
Dope is separated into dope and clear liquid step by step again by contracting section, the dope for entering dope series block 4, and the dope of terminal goes out from dope
Liquid pipe discharge, the clear liquid of terminal is from the filter tank 2 that clear liquid return pipe 5 returns to the first order in multistage filter tank, on filter tank 2 at different levels
Clear liquid be discharged by clear liquid discharge pipe.
Adlerika ingredient situation is as follows before process:
Table 1
Table 2
Table 3
Table 4
Wherein " < " plus detection limit expression are not detected in table 1-4.
Data statistics such as table 5 is handled using traditional handicraft device:
Table 5
Data statistics such as table 6 is handled using the application process unit:
Table 6
Data calculate analysis
From the above experimental data and calculate data it can be seen that
1, for unified contrast standard, the identical station of two kinds of techniques uses the pump of same brand, above it can be seen that this Shen
Please energy consumption be lower than traditional handicraft 57.3KW, illustrate that traditional handicraft energy consumption is higher than this patent by 55%；
2, technology, which implements difficulty, can be seen that this patent film surface concentration in low concentration operation, and enforcement difficulty is small, and each section
Concentration echelon increase, design science, rationally.
3, the art of this patent route is advanced, and film surface concentration is low, and therefore, it is lower that clear liquid goes out systemic concentration.
4, the art of this patent emphasis improves dope concentration, and dope concentration improves 23% on the basis of traditional handicraft.
5,2.22 times are increased to by 1.82 times of traditional handicraft using this patent cycles of concentration, increase rate 23%
In conclusion using can be improved dope concentration after patent technique and cycles of concentration is 23%；Saving energy energy consumption
30% or more.
Embodiment 2
Referring to Fig.1-6, black structure Qi dry fruit extracting solution to be treated is passed through clear liquid series block 1 step by step for lycium ruthenicum dry fruit
Extracting solution is separated into dope and clear liquid, and the clear liquid of terminal is discharged from clear liquid outlet tube, and the dope on filter tanks 2 at different levels is returned by dope
Flow tube 6 returns in stoste feed liquor system.
Lycium ruthenicum dry fruit extracting solution ingredient such as table 7 before handling:
Table 7
There is no the stillness of night to come out after entering system using traditional open circulation or intermittent half-open semi-closure system stoste, at all
It is not able to satisfy the needs of higher concentration stoste concentration.
Concentrate analysis data such as table 8 after the processing of the application process treatment device:
Table 8
Illustrated according to detection data, be concentrated using the process treatment device in the application, not only concentrate concentration energy
Reach 50g/100ml or more, while film has also reached 98% to the interception that clear liquid goes out anthocyanidin in liquid, meets technique well
Requirement
The specific embodiment of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to the application protection scope therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, under the premise of not departing from technical scheme design, various modifications and improvements can be made, these belong to this
The protection scope of application.
Claims (10)
1. a kind of device for improving film cycles of concentration and dope concentration, it is characterised in that: including clear liquid series block (1), dope string
Join the combination of section (4) or clear liquid series block (1) and dope series block (4)；
By multistage filter tank (2), by clear liquid outlet pipe (8), successively string and/or parallel connection are formed the clear liquid series block (1), afterbody
Filter tank is connect by clear liquid outlet pipe (8) with clear liquid liquid outlet system, and in addition to first order filter tank (2), every level-one filter tank (2) goes out dope
The liquid feeding end of end any first-level filtering tank (2) before being back to by dope return pipe；
By multistage filter tank (2), by dope outlet pipe (3), successively string and/or parallel connection are formed the dope series block (4), afterbody
Filter tank (2) is connect by dope outlet pipe (3) with dope liquid outlet system, and the clear liquid end that goes out of afterbody filter tank (2) is returned by clear liquid
The clear liquid end that goes out of the liquid feeding end of flow tube (5) any first-level filtering tank (2) before being back to, remaining every level-one filter tank (2) passes through clear liquid
Outlet pipe drains into clear liquid liquid outlet system；
In the clear liquid series block (1) and dope series block (4), filter membrane (7) are provided in every level-one filter tank (2).
2. a kind of device for improving film cycles of concentration and dope concentration according to claim 1, it is characterised in that: including clear
The combination of liquid series block (1) and dope series block (4)；
By multistage filter tank (2), by clear liquid outlet pipe (8), successively string and/or parallel connection are formed the clear liquid series block (1), afterbody
Filter tank (2) is connect by clear liquid outlet pipe (8) with clear liquid liquid outlet system, and first order filter tank (2) goes out dope end and dope series block
(4) it connects, the dope end that goes out of remaining every level-one filter tank (2) passes through any first-level filtering tank (2) before dope return pipe is back to
Liquid feeding end；
The dope series block (4) is successively gone here and there by multistage filter tank (2) by dope outlet pipe and/or parallel connection is formed, afterbody filter
Tank (2) is connect by dope outlet pipe (3) with dope liquid outlet system, and the clear liquid end that goes out of afterbody filter tank (2) is flowed back by clear liquid
The clear liquid end that goes out of the liquid feeding end of pipe any first-level filtering tank (2) before being back to, remaining every level-one filter tank (2) passes through clear liquid outlet pipe
(8) clear liquid liquid outlet system is drained into.
3. a kind of device for improving film cycles of concentration and dope concentration according to claim 1, it is characterised in that: the filter
The structure of film (7) is plate membrane, rolled film, tubular type, any one in hollow-fibre membrane；The filter membrane (7) is microfiltration membranes, surpasses
Any one in filter membrane, nanofiltration membrane and reverse osmosis membrane.
4. a kind of device for improving film cycles of concentration and dope concentration according to claim 1, it is characterised in that: be connected to
Clear liquid return pipe (5) and dope return pipe (6) on the filter tank (2) are connected to higher level's filter tank (2) of the filter tank (2), described
Filter tank (2) is also connected with inner loop pipeline.
5. a kind of device for improving film cycles of concentration and dope concentration according to claim 1, it is characterised in that: the filter
Tank (2) can also be using any one in parallel, series connection and parallel combination connection type；The filter tank (2)
Series is 2 grades or 2 grades or more.
6. a kind of device for improving film cycles of concentration and dope concentration according to claim 1, it is characterised in that: the device
Implement membrane separation process simultaneously including both dope series block (4) and clear liquid series block (1) and individually implements UF membrane work
Two kinds of embodiments of skill.
7. a kind of device for improving film cycles of concentration and dope concentration according to claim 1, it is characterised in that: the device
Operation process include open operational process, closed operation process, in half-open half-closed operational process any one or
Multiple combinations；The mode of operation of the device includes intermittent, continous way, Multistage continuous, any one in multi-stage batch formula
Or multiple combinations.
8. a kind of device for improving film cycles of concentration and dope concentration according to claim 1, it is characterised in that: the device
The substance of different component is separated in micro-filtration (MF), ultrafiltration (UF), nanofiltration (NF) and reverse osmosis (R0) UF membrane highly concentrated solution
Application.
9. a kind of device for improving film cycles of concentration and dope concentration according to claim 7, it is characterised in that: the height
Solute in strength solution includes any in the mixture that organic matter, inorganic matter, organic matter are mixed with inorganic matter arbitrary proportion
It is one or more；Solvent in the highly concentrated solution includes that organic solvent, water, organic solvent are mixed with one arbitrary proportion of water
Any one or more in mixture.
10. a kind of device for improving film cycles of concentration and dope concentration according to claim 7, it is characterised in that: described
The concentration of highly concentrated solution is 0-80%.
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| US11806668B2 (en) | 2021-12-14 | 2023-11-07 | Saline Water Conversion Corporation | Method and system for extraction of minerals based on divalent cations from brine |
| US11884567B2 (en) | 2019-04-01 | 2024-01-30 | Saline Water Conversion Corporation | Desalination brine concentration system and method |
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