CN106970183B - The device and method that hollow-fibre membrane element wound is influenced for evaluating sewage - Google Patents
The device and method that hollow-fibre membrane element wound is influenced for evaluating sewage Download PDFInfo
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Abstract
The present invention provides the device and method influenced for evaluating sewage on hollow-fibre membrane element wound, device includes water inlet system, reactor and aerator, the reactor includes the hollow fiber film assembly of the immersion for containing the container of sewage and being set in container, the hollow fiber film assembly is equipped with solarization air cap, the aerator includes aeration tube, and the outlet side of the aeration tube is located at the underface of the solarization air cap；The water inlet system includes enrichment facility, the grid for intercepting sewage impurity and the water pipe for water inlet set gradually along water inlet direction, and the water outlet of the water pipe is connect with the container, the removable water inlet end for being installed on the water pipe of the grid.Method is to carry out test evaluation to sewage using above-mentioned apparatus.Present apparatus structure is simple, easy for installation, and energy effective evaluation sewage impurity influences the winding of hollow fiber film assembly in the process of running, and method is easy to operate, can be pretreatment precision needed for different wastewater treatment Object Selections.
Description
Technical field
The present invention relates to technical field of sewage, in particular to for evaluating sewage to hollow-fibre membrane element wound shadow
Loud device and method.
Background technique
Sewage disinfection treatment is the first line of defence that sewage enters subsequent biological treatment process, plays protection mechanical equipment, pipe
Road and the important function for guaranteeing subsequent technique normal operation.With the extensive use of film-bioreactor sewage treatment at home,
Sewage disinfection treatment seems increasingly important.Film-biofilm reactor has crown_interception, including hair, fibre to the impurity in sewage
Dimension, dross grains of sand etc..Hair, fiber can be wound in the reactor, meanwhile, hair, fiber can be certainly under the action of water flow
Grow up to the bigger impurity beam of scale, block the up-flow area of membrane module, according to be hollow fiber film assembly, then be wrapped in
Hollow-fibre membrane etc. is cut off or blocked on hollow-fibre membrane.Therefore, the sewage fine of film-bioreactor is pre-processed for film-
The operation steady in a long-term of bioreactor is of great significance.
Membrane module clogging can be divided into two kinds, and one is impurity fibers to be wrapped in film wire root, in a short time can't
Cause the decline of membrane flux；Another is impurity fiber directly in film surface (plate membrane) and film wire centre (hollow-fibre membrane)
It is wound, leads to the compound deposit for sludge and fiber occur, cause membrane flux sharp-decay, membrane module can not be transported normally
Row, it is necessary to membrane module be hung out, cleared up the impurity inside membrane module using manual type.
Domestic and foreign scholars mainly analyze the twister and formation mechenism that cause membrane module to wind and block at present,
It was found that the substance being wrapped on membrane module is mainly hair, fiber and various flocculence substances, wherein with fiber and flocculence object
Based on matter, and on membrane module twister partial size between 0.06~1mm, and propose that short velveteen substance may release grain
Diameter adversely affects the strainability of film in 0.4~5 μm of cellulose substances, and propose needs reinforce pre-process into
Row control.Existing research is that (fiber size such as wound) proposes substantially in the case where analysis has occurred and that wrapping phenomena
Pretreatment precision.But the winding potential of sewage how is evaluated, how to be selected in engineering design according to the property of different water inlets
It selects reasonable pretreatment precision but to have no way of finding out about it, also not can be used for evaluating the dress that sewage influences hollow-fibre membrane element wound
Set and method, the serious pretreatment engineering design for restricting film-bioreactor, cause it is most of at present be rule of thumb propose it is pre-
Processing accuracy causes occur serious winding and blocking in Practical Project longtime running, some engineerings occur winding problem just into
Row improves and treatment facility, increases sewage treatment plant's investment for trnasforming urban land cost, and influence the stable operation of sewage treatment plant.
Summary of the invention
It is an object of the invention to overcome drawbacks described above, one kind is provided, hollow fiber film assembly is twined for evaluating sewage
Around the device and method of influence.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows:
The present invention provides the device influenced for evaluating sewage on hollow-fibre membrane element wound, including water inlet system,
Reactor and aerator, the reactor include hollow fiber film assembly and the container for containing sewage, the hollow fibre
Dimension membrane module is submerged hollow fibre membrane module in bioreactor, and the hollow fiber film assembly is set in the container, the hollow fibre
It ties up membrane module and is equipped with solarization air cap, the aerator includes aeration tube, and the outlet side of the aeration tube is located at the solarization air cap
Underface；The water inlet system includes the enrichment facility set gradually along water inlet direction, the grid for intercepting sewage impurity
And the water pipe for water inlet, the water outlet of the water pipe are connect with the container, the grid is removable to be installed on the water pipe
Water inlet end.
The present invention also provides the methods influenced for evaluating sewage on hollow-fibre membrane element wound, are used for using above-mentioned
Evaluation sewage carries out test evaluation to sewage to the device that hollow-fibre membrane element wound influences.
The present invention also provides the methods influenced for evaluating sewage on hollow-fibre membrane element wound, including following step
It is rapid:
Step 1: after sewage is carried out n times of concentration, the sewage after concentration is filtered, it is miscellaneous in sewage after measurement filtering
Matter concentration C0；
Step 2: filtered sewage being fitted into the container equipped with hollow fiber film assembly, and submerges the doughnut
Membrane module measures the dischargeable capacity V of sewage and effective membrane area A of hollow fiber film assembly in container；
Step 3: the sewage of step 2 submergence hollow fiber film assembly is aerated；
Step 4: when the time is T, the impurity concentration C of sewage after determination step 3 is aerated1；
Step 5: press formula:The cumulative speed v of impurity on hollow fiber film assembly is calculated, wherein v
Unit is mg/ (m2D), C0Unit be mg/L, the unit of V is L, and the unit of A is m2, the unit of n is 1, C1Unit be
The unit of mg/L, T are d.
The beneficial effects of the present invention are: (1) concentration of wastewater is regulated and controled by enrichment facility, passes through the grid tune of removable installation
Control enters the impurity particle size of sewage in container, recycles aerator aeration to generate a large amount of bubbles, using bubble to impurity
The suspension of particulate matter and defeated move realize winding of the impurity to hollow fiber film assembly, and then realize and effectively simulate in the short time
Empty fiber membrane the component wrapping phenomena of impurity and winding degree, and stable and reliable operation in the process of running；(2) structure of the invention
Simply, easy to make, processing charges is low；(3) present invention can provide required pretreatment precision for film-bioreactor and provide
Accurate data are supported, avoid occurring serious winding and clogging in Practical Project longtime running, are reduced at sewage
The improvement cost for managing factory, is conducive to the stable operation of sewage treatment plant, meanwhile, specifying sewage disinfection treatment precision, to reduce sewage miscellaneous
The influence of confrontation hollow fiber film assembly reduces the cleaning cost of hollow fiber film assembly, extends membrane module service life；(4)
Method of the invention is easy to operate, be able to achieve hollow fiber film assembly in the process of running sewage impurity to its wrapping phenomena and
Winding degree.
Detailed description of the invention
Fig. 1 is the structural representation that the embodiment of the present invention is used to evaluate the device that sewage influences hollow-fibre membrane element wound
Figure.
Fig. 2 is the hollow fibre that the embodiment of the present invention 1 is used to evaluate the method that sewage influences hollow-fibre membrane element wound
Tie up impurities accumulation rate schematic diagram on membrane module.
Fig. 3 is the hollow fibre that the embodiment of the present invention 2 is used to evaluate the method that sewage influences hollow-fibre membrane element wound
Tie up impurities accumulation rate schematic diagram on membrane module.
Fig. 4 is the hollow fibre that the embodiment of the present invention 3 is used to evaluate the method that sewage influences hollow-fibre membrane element wound
Tie up impurities accumulation rate schematic diagram on membrane module.
Fig. 5 be the embodiment of the present invention 1 be used to evaluate the method that sewage influences hollow-fibre membrane element wound sewage it is miscellaneous
Matter winds schematic diagram.
Fig. 6 be the embodiment of the present invention 2 be used to evaluate the method that sewage influences hollow-fibre membrane element wound sewage it is miscellaneous
Matter winds schematic diagram.
Fig. 7 be the embodiment of the present invention 3 be used to evaluate the method that sewage influences hollow-fibre membrane element wound sewage it is miscellaneous
Matter winds schematic diagram.
Label declaration:
1- hollow fiber film assembly；2- container；21- top cover；3- aeration tube；4- grid；5- aeration pump；The first water pump of 6-；
7- valve；8- film frame；The second water pump of 9-；10-U U-tube manometer；11- three-limb tube.
Specific embodiment
In order to describe the technical content, the structural feature, the achieved object and the effect of this invention in detail, below in conjunction with embodiment
And attached drawing is cooperated to be explained in detail.
The most critical design of the present invention is: pretreated sewage is submerged hollow fiber film assembly, and utilize aeration dress
It sets and be aerated and then evaluate sewage to the winding of hollow fiber film assembly influence.
Fig. 1 is please referred to, the device that hollow-fibre membrane element wound is influenced for evaluating sewage, including it is water inlet system, anti-
Device and aerator are answered, the reactor includes hollow fiber film assembly 1 and the container 2 for containing sewage, the hollow fibre
Dimension membrane module 1 is submerged hollow fibre membrane module in bioreactor, and the hollow fiber film assembly 1 is set in the container 2, described hollow
Fiber film component 1 is equipped with solarization air cap, and the aerator includes aeration tube 3, and the outlet side of the aeration tube 3 is located at the exposure
The underface of stomata；The water inlet system includes the enrichment facility set gradually along water inlet direction, for intercepting sewage impurity
Grid 4 and water pipe for water inlet, the water outlet of the water pipe are connect with the container, and the grid is removable to be installed on the water
The water inlet end of pipe.
The course of work of the invention: (will there is a certain concentration and grain by the sewage of enrichment facility and grid impurity screening
The sewage of the impurity of diameter) it is conveyed by water pump equal power device into container, wherein the concentration of sewage is determined by enrichment facility, impurity
Partial size determined by the aperture (processing accuracy) of grid, to the sewage in container can be totally submerged hollow fiber film assembly open expose
Device of air observes the impurity wrapping phenomena of hollow fiber film assembly in the process of running.The principle of the present invention mainly utilizes
Bubble realizes the suspension of impurity particle object and defeated shifting, by continuous aeration, generates a large amount of bubbles in the liquid phase, bubble is rising
In the process impurity particle object in sewage can be carried under one's arms to carry under one's arms with defeated shifting, impurity and fiber in gas-liquid mixed stream and move past journey with defeated
Generate collision between middle meeting and film wire and be trapped and deposit, at the same the filtering of membrane module also can drive part impurity to film surface
Migration (water outlet is recycled in container), be finally trapped between the root or film wire of membrane module, formed impurity wrapping phenomena, lead to
It crosses the concentration that enrichment facility carries out different multiples to sewage and passes through replacement due to the removable installation of grid to adjust the concentration of sewage
The grid of different pore size, and then the partial size of the dirty impurities in water entered in container is adjusted, due in the concentration and sewage of sewage
Impurity partial size is controllable, it is thus possible to simulate the winding feelings of hollow fiber film assembly after the operation long period in a short time
Condition passes through the residual impurity content of sewage in assessment container, it is known that impurities accumulation on hollow fiber film assembly during the experiment
The cumulative speed of impurity can be calculated by following formula in amount and winding extent hollow fiber film component:
Wherein, v is the cumulative speed of impurity on hollow fiber film assembly, and unit is mg/ (m2·d)；C0For in investment container
The initial impurity concentration (in terms of concentration of suspension SS) of sewage, unit are (mg/L)；N impurity cycles of concentration；C1For evaluating apparatus
Interior residual impurity concentration, unit mg/L；V is the dischargeable capacity of sewage in evaluating apparatus, unit L；A is hollow-fibre membrane
Effective membrane area, unit m2。
As can be seen from the above description, the beneficial effects of the present invention are: (1) concentration of wastewater is regulated and controled by enrichment facility, passed through
The grid regulation of removable installation enters the impurity particle size of sewage in container, and aerator aeration is recycled to generate a large amount of gas
Bubble, suspension and the defeated winding for moving realization impurity to hollow fiber film assembly using bubble to impurity particle object, and then realize short
The hollow fiber film assembly wrapping phenomena of impurity and winding degree in the process of running are effectively simulated in time, and stable
Reliably；(2) the configuration of the present invention is simple, easy to make, processing charges is low；(3) present invention can provide institute for film-bioreactor
The pretreatment precision needed provides definite corresponding data basis.(1) concentration of wastewater is regulated and controled by enrichment facility, passes through removable installation
Grid regulation enter the impurity particle size of sewage in container, recycle aerator aeration to generate a large amount of bubbles, utilize gas
The suspension to impurity particle object and the defeated winding for moving realization impurity to hollow fiber film assembly are steeped, and then is realized in the short time effectively
Simulate the hollow fiber film assembly wrapping phenomena of impurity and winding degree, and stable and reliable operation in the process of running；(2) originally
Inventive structure is simple, easy to make, and processing charges is low；(3) present invention can provide required pretreatment for film-bioreactor
Precision provides accurate data and supports, avoids occurring serious winding and clogging in Practical Project longtime running, drops
The improvement cost of low sewage treatment plant is conducive to the stable operation of sewage treatment plant, meanwhile, specifying sewage disinfection treatment precision can drop
Influence of the low sewage impurity to hollow fiber film assembly reduces the cleaning cost of hollow fiber film assembly, extends membrane module and uses
Service life.
Further, the grid is stainless steel grid, and the aperture of the grid 4 is 0.1~1.0mm；The container 2 is
Transparent vessel.
Seen from the above description, stainless steel grid helps to extend the service life of grid；Using aperture be 0.1~
The grid of 1.0mm, which carries out pretreatment, to pre-process precision to hollow fiber film assembly in preferable simulation actual sewage treatment process
Winding influence；By Vessel Design at transparent vessel, to be clearly observed impurity of the hollow fiber film assembly in container
Wrapping phenomena.
Further, the aerator further includes aeration pump 5, and the aeration pump 5 and the inlet end of the aeration tube 3 connect
It connects.
Seen from the above description, lower with respect to other aerator noises using aeration pump, so that whole device is lighter
Just, minimize, product power is smaller, more energy saving.
Further, the water inlet system further includes the first water pump 6 and valve 7, and first water pump 6 is installed on the lattice
Between net 4 and the container 2, the valve 7 is installed between the container 2 and first water pump 6.
Seen from the above description, the sewage transport filtered process grid using the first water pump is convenient and efficient into container,
Using the direction of valve control water flow, it can both prevent the sewage in container from flowing backwards, and also follow-up test facilitated to fetch water.
Further, the hollow fiber film assembly 1 be hollow fiber bundle formula membrane module or hollow fiber curtain type membrane component,
The membrane material of the hollow fiber film assembly 1 is Kynoar, polyvinyl chloride, polypropylene, polyethylene, polyether sulfone or polysulfones.
Seen from the above description, Kynoar is used to have good chemical stability, corrosion resistance strong for membrane material
And the advantage that performance is stable；Polyvinyl chloride has cheap, the strong advantage of ability resistant to chemical etching；Polypropylene is as membrane material
With with intensity height, acid and alkali-resistance, resistance to bacterial corrosion, heat resistance is good, surface is nonpolar, contamination resistance is strong, micropore is uniform,
The advantages that unit area flux is big；Polyethylene is then low temperature resistant, chemical stability is good；Polyether sulfone has intensity height, acid and alkali-resistance range
Advantage wide and resistant to high temperature；Polysulfones has good chemical stability, acid-proof alkaline and water permeability, and intensity is in organic high score
Highest in film made of sub- material, long service life.
Further, the reactor further includes film frame 8, and the container 2 includes top cover 21, the hollow fiber film assembly
1 water outlet is installed on the film frame 8, and the film frame 8 is connect with the top cover 21；The hollow fiber film assembly 1 goes out
Water end (W.E.) is connect simultaneously also by hose with the internal port of top cover 21.
Seen from the above description, facilitate the installation and removal of hollow fiber film assembly using aforesaid way, and firmly install.
It further, further include outlet system, the outlet system leads to including the second water pump 9, U-tube manometer 10 and three
Adapter tube 11, the water outlet of the hollow fiber film assembly 1, the second water pump 9 and U-tube manometer 10 respectively with the three-limb tube
11 connections.
Seen from the above description, using three-limb tube by U-tube manometer, the water outlet of empty fiber membrane component and the second water
Pump connection, adjusts the flow of the second water pump, increases outlet system, then water intake mode can use continous way, can maximize mould
Quasi- actual sewage influences the winding of hollow fiber film assembly.
Fig. 1 to Fig. 7 is please referred to, the method influenced for evaluating sewage on hollow-fibre membrane element wound, using above-mentioned use
Test evaluation is carried out to sewage on the device that hollow-fibre membrane element wound influences in evaluation sewage.
The course of work of the invention: (will there is a certain concentration and grain by the sewage of enrichment facility and grid impurity screening
The sewage of the impurity of diameter) it is conveyed by water pump equal power device into container, wherein the concentration of sewage is determined by enrichment facility, impurity
Partial size determined by the aperture (processing accuracy) of grid, to the sewage in container can be totally submerged hollow fiber film assembly open expose
Device of air observes the impurity wrapping phenomena of hollow fiber film assembly in the process of running.The principle of the present invention mainly utilizes
Bubble realizes that aerator plays purging film wire in the operational process of whole device to the suspension of impurity particle object and defeated shifting
Effect generates a large amount of bubbles by continuous aeration in the liquid phase, bubble in uphill process can to impurity particle object in sewage into
Row is carried under one's arms to carry under one's arms with defeated shifting, impurity and fiber in gas-liquid mixed stream and generate between meeting and film wire during defeated shifting and collides and cut
Stay and deposit, at the same membrane module filtering also can migration (water outlet be recycled to container in) of the drive part impurity to film surface, most
It is trapped between the root or film wire of membrane module eventually, forms impurity wrapping phenomena, different times are carried out to sewage by enrichment facility
Several concentrations by replacing the grid of different pore size, and then is adjusted and is entered due to the removable installation of grid to adjust the concentration of sewage
The partial size of dirty impurities in water in container, since the impurity partial size in the concentration and sewage of sewage is controllable, it is thus possible to short
The winding of hollow fiber film assembly after running the long period is simulated in time, during the experiment by assessment container
The residual impurity content of sewage, it is known that on hollow fiber film assembly impurities accumulation amount and winding extent hollow fiber film component on it is miscellaneous
The cumulative speed of matter can be calculated by following formula:
Wherein, v is the cumulative speed of impurity on hollow fiber film assembly, and unit is mg/ (m2·d)；C0For in investment device
The initial average SS of sewage, unit are (mg/L)；N impurity cycles of concentration；C1It is for residual impurity concentration, unit in evaluating apparatus
mg/L；V is the dischargeable capacity of sewage in evaluating apparatus, unit L；A is effective membrane area of hollow-fibre membrane, unit m2。
The beneficial effects of the present invention are: (1) concentration of wastewater is regulated and controled by enrichment facility, passes through the grid tune of removable installation
Control enters the impurity particle size of sewage in container, recycles aerator aeration to generate a large amount of bubbles, using bubble to impurity
The suspension of particulate matter and defeated move realize winding of the impurity to hollow fiber film assembly, and then realize and effectively simulate in the short time
Empty fiber membrane the component wrapping phenomena of impurity and winding degree, and stable and reliable operation in the process of running；(2) structure of the invention
Simply, easy to make, processing charges is low；(3) present invention can provide required pretreatment precision for film-bioreactor and provide
Accurate data are supported, avoid occurring serious winding and clogging in Practical Project longtime running, are reduced at sewage
The improvement cost for managing factory, is conducive to the stable operation of sewage treatment plant, meanwhile, specifying sewage disinfection treatment precision, to reduce sewage miscellaneous
The influence of confrontation hollow fiber film assembly reduces the cleaning cost of hollow fiber film assembly, extends membrane module service life；(4)
Method of the invention is easy to operate, be able to achieve hollow fiber film assembly in the process of running sewage impurity to its wrapping phenomena and
Winding degree.
Further, sewage is concentrated with enrichment facility；Sewage after concentration is filtered using grid,
The container will be poured by the filtered sewage intercepting well water pipe of grid until submerging the hollow fiber film assembly in the container,
It is then turned on aerator to be aerated, the strength control of aeration is in 0.8~2m3/(m2·h)。
The present invention also provides the methods influenced for evaluating sewage on hollow-fibre membrane element wound, including following step
It is rapid:
Step 1: step 1: after sewage is carried out n times of concentration, the sewage after concentration being filtered, sewage after measurement filtering
In impurity concentration C0；
Step 2: filtered sewage being fitted into the container equipped with hollow fiber film assembly, and submerges the doughnut
Membrane module measures the dischargeable capacity V of sewage and effective membrane area A of hollow fiber film assembly in container；
Step 3: the sewage of step 2 submergence hollow fiber film assembly is aerated；
Step 4: when the time is T, the impurity concentration C of sewage after determination step 3 is aerated1；
Step 5: press formula:The cumulative speed v of impurity on hollow fiber film assembly is calculated,
Wherein the unit of v is mg/ (m2D), C0Unit be mg/L, the unit of V is L, and the unit of A is m2, the unit of n
It is 1, C1Unit be mg/L, the unit of T is d.
The beneficial effects of the present invention are: method of the invention is easy to operate, is able to achieve hollow fiber film assembly and is running
Wrapping phenomena and winding degree of the sewage impurity to it in the process.
Embodiment 1
Fig. 1, Fig. 2 and Fig. 5, including water inlet system, reactor and aerator are please referred to, the reactor includes hollow fibre
Membrane module 1 and the container 2 for containing sewage are tieed up, the hollow fiber film assembly 1 is submerged hollow fibre membrane module in bioreactor, described
Hollow fiber film assembly 1 is set in the container 2, and the hollow fiber film assembly 1 is equipped with solarization air cap, the aerator
Including aeration tube 3, the outlet side of the aeration tube 3 is located at the underface of the solarization air cap；The water inlet system includes along water inlet
The enrichment facility that direction is set gradually, the grid 4 for intercepting sewage impurity and for the water pipe of water inlet, the water outlet of the water pipe
End is connect with the container, the removable water inlet end for being installed on the water pipe of the grid.
The grid is stainless steel grid, and the aperture of the grid 4 is 1.0mm；The container 2 is transparent vessel；It is described
Aerator further includes aeration pump 5, and the aeration pump 5 is connect with the inlet end of the aeration tube 3；The water inlet system further includes
First water pump 6 and valve 7, first water pump 6 are installed between the grid and 4 containers 2, and the valve 7 is installed on
Between the container 2 and first water pump 6；The hollow fiber film assembly 1 is hollow fiber bundle formula membrane module or hollow fibre
Tie up curtain type film assembly, the membrane material of the hollow fiber film assembly 1 be Kynoar, polyvinyl chloride, polypropylene, polyethylene,
Polyether sulfone or polysulfones；The reactor further includes film frame 8, and the container 2 includes top cover 21, the hollow fiber film assembly 1
Water outlet is installed on the film frame 8, the film frame 8 and 21 releasable connection of top cover.
The method that hollow-fibre membrane element wound is influenced for evaluating sewage, comprising the following steps:
Step 1: sewage being concentrated, the multiple of concentration is 30 (that is, actual motion 30d processing water is corresponding
Impurity level)；
Step 2: the sewage after concentration is filtered using the grid 4 of above-mentioned specification, it will be after the filtering of grid 4
The first water pump of sewage intercepting well 6 be pumped into water pipe and pour into the container 2 until submerging the hollow fiber film assembly 1 in the container 2,
It is then turned on aerator to be aerated, water intake mode is batch-type.
Impurities accumulation rate schematic diagram is shown in that Fig. 2, sewage impurity winding schematic diagram are shown on the present embodiment hollow fiber film assembly
Fig. 5.There is more impurity from discovery membrane module when can be seen that operation 7d in above-mentioned two figure, and impurity occurs by root
The trend spread to film surface, impurities accumulation rate schematic diagram attached drawing 2 on membrane module, impurity winding schematic diagram are shown in Fig. 5.From Fig. 2
It is found that the impurities accumulation rate on membrane module is 85.1mg/m after operation 6d2D, impurity are wound with the trend of a rapid growth
Stablize the process of accumulation with one.
Embodiment 2
Fig. 1, Fig. 3 and Fig. 6 are please referred to, the present embodiment basic structure and embodiment 1 are consistent, the difference is that, the lattice
The aperture of net is 0.4mm.
The method that hollow-fibre membrane element wound is influenced for evaluating sewage, with embodiment 1.The present embodiment doughnut
Impurities accumulation rate schematic diagram is shown in that Fig. 3, sewage impurity winding schematic diagram are shown in Fig. 6 on membrane module.It can be seen that from above-mentioned two figure
Equally occurs the phenomenon that impurity winding when running 7d on discovery membrane module, the impurities accumulation rate on membrane module is at this time
44.6mg/m2D, as can be seen from Figure 3, after impurity partial size reduces, although wrapping phenomena still has, winding degree is substantially reduced,
And also there is apparent reduction in the impurities accumulation amount on membrane module；In addition, impurity partial size is lower than the winding rule that 0.4mm is occurred
Rule is similar lower than 1mm to impurity partial size, illustrates that winding of the impurity on membrane module can be divided into accelerated accumulation and slowly growth by two
Stage.
Embodiment 3
Fig. 1, Fig. 4 and Fig. 7 are please referred to, the present embodiment basic structure and embodiment 1 are consistent, the difference is that, the lattice
The aperture of net is 0.2mm.
The method that hollow-fibre membrane element wound is influenced for evaluating sewage, with embodiment 1.The present embodiment doughnut
Impurities accumulation rate schematic diagram is shown in that Fig. 4, sewage impurity winding schematic diagram are shown in Fig. 7 on membrane module.It can be seen that from above-mentioned two figure
Do not occur the phenomenon that impurity winding on discovery membrane module when running 7d, the impurities accumulation rate on membrane module is 14.5mg/ at this time
m2D is not in as can be seen from Figure 4 wrapping phenomena when impurity partial size is lower than 0.2mm substantially, but is still had on membrane module certain
The impurities accumulation of content illustrates that impurity partial size occurs winding for membrane module and has larger impact, and partial size is bigger, is more easy to happen
Winding, and it is also more serious to wind degree.
Analog result from embodiment 1 to embodiment 3 can be seen that above-mentioned for evaluating sewage to hollow fiber film assembly
Cumulative speed≤20mg/m of impurity when in the device operation week age that winding influences2When d, impurity will not be sent out on membrane module
Raw winding, corresponding pretreatment precision are 0.2mm.
Embodiment 4
Fig. 1 is please referred to, the present embodiment increases outlet system on the basis of Examples 1 to 3 any one embodiment, described
Outlet system include the second water pump 9, U-tube manometer 10 and three-limb tube 11, the water outlet of the hollow fiber film assembly 1,
Second water pump 9 and U-tube manometer 10 are connect with the three-limb tube 11 respectively.
The present embodiment increases outlet system on the basis of realizing the beneficial effect of any one embodiment of Examples 1 to 3,
Then water intake mode can also use continous way, and can maximize simulation actual sewage influences the winding of hollow fiber film assembly.
In conclusion the device influenced on hollow-fibre membrane element wound provided by the present invention for evaluation sewage and side
Method regulates and controls concentration of wastewater by enrichment facility, and the impurity partial size for entering sewage in container by the grid regulation of removable installation is big
It is small, it recycles aerator aeration to generate a large amount of bubbles, impurity pair is realized to the suspension of impurity particle object and defeated shifting using bubble
The winding of hollow fiber film assembly, and then realize in the short time and effectively simulate hollow fiber film assembly impurity in the process of running
Wrapping phenomena and winding degree, and stable and reliable operation；The configuration of the present invention is simple, easy to make, processing charges is low；The present invention
Required pretreatment precision can be provided for film-bioreactor, accurate data support is provided, avoid Practical Project long
The serious winding of phase emerged in operation and clogging, reduce the improvement cost of sewage treatment plant, are conducive to sewage treatment plant
Stable operation, meanwhile, influence of the sewage impurity to hollow fiber film assembly can be reduced by specifying sewage disinfection treatment precision, be reduced hollow
The cleaning cost of fiber film component extends membrane module service life；Method of the invention is easy to operate, is able to achieve hollow-fibre membrane
Component in the process of running sewage impurity to its wrapping phenomena and winding degree；It can most in short-term using the water intake mode of batch-type
Between simulate sewage on hollow-fibre membrane element wound influence, accelerate test progress, improve test efficiency；And increase in embodiment 4
Add outlet system, then water intake mode can also use continous way, can maximize simulation actual sewage to hollow fiber film assembly
Winding influence.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. for evaluating the device that sewage influences hollow-fibre membrane element wound, which is characterized in that including water inlet system, reaction
Device and aerator, the reactor include hollow fiber film assembly and the container for containing sewage, the hollow-fibre membrane
Component is submerged hollow fibre membrane module in bioreactor, and the hollow fiber film assembly is set in the container, the hollow-fibre membrane
Component is equipped with solarization air cap, and the aerator includes aeration tube, and the outlet side of the aeration tube is being located at the solarization air cap just
Lower section；The water inlet system includes the enrichment facility set gradually along water inlet direction, grid and use for intercepting sewage impurity
In the water pipe of water inlet, the water outlet of the water pipe is connect with the container, the removable water inlet for being installed on the water pipe of the grid
End.
2. according to claim 1 for evaluating the device that sewage influences hollow-fibre membrane element wound, feature exists
In the aperture of the grid is 0.1~1.0mm；The container is transparent vessel.
3. according to claim 1 for evaluating the device that sewage influences hollow-fibre membrane element wound, feature exists
In the aerator further includes aeration pump, the inlet end connection of the aeration pump and the aeration tube.
4. according to claim 1 for evaluating the device that sewage influences hollow-fibre membrane element wound, feature exists
In, the water inlet system further includes the first water pump and valve, and first water pump is installed between the grid and the container,
The valve is installed between the container and first water pump.
5. according to claim 1 for evaluating the device that sewage influences hollow-fibre membrane element wound, feature exists
In the hollow fiber film assembly is hollow fiber bundle formula membrane module or hollow fiber curtain type membrane component, the hollow-fibre membrane
The membrane material of component is Kynoar, polyvinyl chloride, polypropylene, polyethylene, polyether sulfone or polysulfones.
6. according to claim 1 for evaluating the device that sewage influences hollow-fibre membrane element wound, feature exists
In the reactor further includes film frame, and the container includes top cover, and the water outlet of the hollow fiber film assembly is installed on described
On film frame, the film frame and the top cover releasable connection.
7. according to claim 1 for evaluating the device that sewage influences hollow-fibre membrane element wound, feature exists
In, further include outlet system, the outlet system include the second water pump, U-tube manometer and three-limb tube, the doughnut
The water outlet of membrane module, the second water pump and U-tube manometer are connect with the three-limb tube respectively.
8. for evaluating the method that sewage influences hollow-fibre membrane element wound, which is characterized in that use claim 1~7
The device influenced for evaluating sewage on hollow-fibre membrane element wound described in any one claim surveys sewage
Examination evaluation.
9. according to claim 8 for evaluating the method that sewage influences hollow-fibre membrane element wound, feature exists
In sewage is concentrated with enrichment facility；Sewage after concentration is filtered using grid, will be filtered by grid
Sewage intercepting well water pipe afterwards pours into the container until submerging the hollow fiber film assembly in the container, is then turned on aeration dress
It sets and is aerated, the strength control of aeration is in 0.8~2m3/(m2·h)。
10. for evaluating the method that sewage influences hollow-fibre membrane element wound, which comprises the following steps:
Step 1: sewage is subjected to n times of concentration, the sewage after concentration is filtered, the impurity concentration after measurement filtering in sewage
C0；
Step 2: filtered sewage being fitted into the container equipped with hollow fiber film assembly, and submerges the hollow-fibre membrane group
Part measures the dischargeable capacity V of sewage and effective membrane area A of hollow fiber film assembly in container；
Step 3: the sewage of step 2 submergence hollow fiber film assembly is aerated；
Step 4: when the time is T, when the time is T, the impurity concentration C of sewage after determination step 3 is aerated1；
Step 5: press formula:The cumulative speed v of impurity on hollow fiber film assembly is calculated, wherein the unit of v
For mg/ (m2D), C0Unit be mg/L, the unit of V is L, and the unit of A is m2, the unit of n is 1, C1Unit be mg/L, T
Unit be d.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101293702A (en) * | 2008-06-18 | 2008-10-29 | 兖州煤业股份有限公司 | Method for controlling membrane pollution in diaphragm bioreactor on line with medium, low voltage |
| CN101344505A (en) * | 2008-09-01 | 2009-01-14 | 天津工业大学 | On-line monitoring method and device for pollution of hollow fiber film |
| CN101944275A (en) * | 2010-08-26 | 2011-01-12 | 天津市环境保护科学研究院 | Membrane pollution diagnosis and early warning decision making system of hollow fiber device |
-
2017
- 2017-04-26 CN CN201710282559.1A patent/CN106970183B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101293702A (en) * | 2008-06-18 | 2008-10-29 | 兖州煤业股份有限公司 | Method for controlling membrane pollution in diaphragm bioreactor on line with medium, low voltage |
| CN101344505A (en) * | 2008-09-01 | 2009-01-14 | 天津工业大学 | On-line monitoring method and device for pollution of hollow fiber film |
| CN101944275A (en) * | 2010-08-26 | 2011-01-12 | 天津市环境保护科学研究院 | Membrane pollution diagnosis and early warning decision making system of hollow fiber device |
Non-Patent Citations (2)
| Title |
|---|
| 《平板膜生物反应器操作运行条件对膜污染特性的影响》;王志伟等;《膜科学与技术》;20051031;第25卷(第5期);第26-30页 * |
| 《浸没式中空纤维膜生物反应器的》;刘建超等;《膜科学与技术》;20100831;第30卷(第4期);第84-89页 * |
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