CN102353626A - Device and method for measuring clear water flux of hollow-fiber membrane - Google Patents

Device and method for measuring clear water flux of hollow-fiber membrane Download PDF

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Publication number
CN102353626A
CN102353626A CN2011103015931A CN201110301593A CN102353626A CN 102353626 A CN102353626 A CN 102353626A CN 2011103015931 A CN2011103015931 A CN 2011103015931A CN 201110301593 A CN201110301593 A CN 201110301593A CN 102353626 A CN102353626 A CN 102353626A
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China
Prior art keywords
clear water
hollow
membrane module
pressure
flux
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CN2011103015931A
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Chinese (zh)
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文剑平
黄霞
关晶
夏俊林
雷霆
李锁定
俞开昌
文湘华
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Tsinghua University
Beijing Originwater Technology Co Ltd
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Tsinghua University
Beijing Originwater Technology Co Ltd
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Abstract

The invention relates to a device for measuring the clear water flux of a hollow-fiber membrane and a method for measuring the clear water flux of the hollow-fiber membrane by using the device. The measuring device consists of a clear water tank, an accessory system, a membrane assembly, an effluent controlling and data recording system and a vacuum control and suction system. By using the device and the method disclosed by the invention, the measuring accuracy of the clear water flux of the hollow-fiber membrane can be improved by 20 percent and the measuring efficiency is remarkably improved.

Description

A kind of determinator and assay method of hollow-fibre membrane clear water flux
The present invention requires the Chinese invention patent application that application number is 201010296917.2, the applying date is on September 30th, 2010 " determinator of hollow-fibre membrane clear water flux is measured the method for hollow-fibre membrane clear water flux with using said device " to be national right of priority.
[technical field]
The invention belongs to technical field of waste water processing.More specifically, the present invention relates to a kind of determinator of hollow-fibre membrane clear water flux, also relate to the method for using said device to measure hollow-fibre membrane clear water flux.
[background technology]
Along with China's rapid economy development; The consumption of water resource is multiplied; Cause the in short supply of water resource on the one hand, also increased the generation of sewage simultaneously, strengthened the pressure of society and environment sustainable development; Parties concerned's input substantial contribution is handled sewage and its resource is utilized again for this reason, makes sewage disposal technology that tremendous development arranged.
Membrane biological reactor process is exactly a kind of novel recycling of water resource method that develops in recent years.The immersion hollow-fiber membrane bioreactor is that hollow fiber micro-filtration or ultra filtration membrane are immersed in the biological reaction pool, relies on the centrifugation of micro-filtration or ultrafiltration that mud-water separation is opened, and through suction pump clean water is pumped out, and reaches the effect of mud-water separation.This technology organically combines membrane separation technique and traditional wastewater biologic treating technique; High efficiency separation effect with film replaces traditional deposition and filter process; It is little to compare its floor area of traditional sewage water treatment method, and effluent quality is good and stable high, and can elimination overwhelming majority pathogenic microorganism.
The core of membrane bioreactor is a hollow-fibre membrane; In the process of producing the film silk, the clear water flux of film silk is wherein crucial index, under different proportionings and different technology conditions; The clear water flux and the clear water of the hollow-fibre membrane silk of producing have than big-difference than flux; Therefore, can measure hollow-fibre membrane clear water flux and clear water fast and accurately becomes detecting film silk aspect of performance than flux, has great importance.
[summary of the invention]
[technical matters that will solve]
The determinator that the purpose of this invention is to provide a kind of hollow-fibre membrane clear water flux.
The purpose of this invention is to provide a kind of method of using said hollow-fibre membrane clear water flux determinator to measure the clear water flux.
[technical scheme]
The present invention realizes through following technical proposals.
The present invention relates to a kind of determinator of hollow-fibre membrane clear water flux, it is characterized in that it by Rinsing Area with fitting system, membrane module, go out water management and form with suction system with digital data recording system, vacuum control: described Rinsing Area comprises that with fitting system heating rod, thermometer, a pressure unit and cover membrane module and corresponding aspiration link to each other; Describedly go out water management and digital data recording system comprises fluid reservoir, electronic balance, valve and computer; Described vacuum control and suction system comprise vacuum pump, vacuum tank, valve, reduction valve and pressure unit.
Particularly, full glass film group device 1 is set, and is provided with heating rod 3 and the thermometer 2 that links to each other with heating rod 3, be used for measuring the temperature of Rinsing Area at Rinsing Area 4.Said Rinsing Area 4 links to each other with fluid reservoir 8 through glass valve 5, and between Rinsing Area 4 and fluid reservoir 8, is provided with pressure unit 6.Fluid reservoir 8 is placed on the electronic balance 9, and other has computer 10 to be connected with electronic balance 9, can read, calculates and analyze the weight of fluid reservoir 8.The opposite side of fluid reservoir 8 links to each other with vacuum tank 11 through glass valve 7, also is provided with pressure unit 12 on the vacuum tank 11.The opposite side of vacuum tank 11 is connected with reduction valve 13 and vacuum pump 14.
In the present invention; Said membrane module has many enhancement mode hollow fiber mocromembrane silks; With waterproof gasket cement the film silk is bonded on the glass point mouth, glass point mouth and the glass pipeline that catchments is connected, and two groups of glass catchments between the pipeline through the glass partition connection of catchmenting; Constitute one group of membrane module, membrane module is put into Rinsing Area
In the present invention, said fitting system comprises the parts such as valve on inlet pipeline, emptying discharge pipe line and the pipeline that is used to connect Rinsing Area, membrane module, goes out water management and digital data recording system, vacuum control and suction system.The water inlet pipe fitting also has been installed on inlet pipeline, has mainly been act as and in process of the test, in reactor, add water.
A preferred embodiment of the invention in the membrane module of said device, is gone into the film silk braid in the membrane module point mouth of processing with glass, immediately uses waterproof gasket cement with its port sealing.
A preferred embodiment of the invention behind the bonding 1-2min of waterproof gasket cement, is put into clear water with membrane module, and is dry to prevent the film silk.
According to another kind of preferred implementation of the present invention, under the effect of film silk inside and outside differential pressure, clear water enters into fluid reservoir through membrane module, increase in time, and the quality of fluid reservoir is also increasing, simultaneously electronic balance weighing and its qualitative data of computer record.
The present invention relates to a kind of method of using the described determinator of claim 1 to measure hollow-fibre membrane clear water flux; It is characterized in that under the swabbing action of vacuum pump; Pressure in the vacuum tank decreases, and through reduction valve, the pressure in the vacuum tank is adjusted to 20kPa and maintains under this pressure; Open valve 1 and 2 this moment; Clear water flow into the fluid reservoir from Rinsing Area under suction function, through electronic balance weighing and its clear water quality data of computer record, calculates clear water flux and clear water and compares flux.
During use, earlier the film silk braid is gone in the glass point mouth of glass film group device, carry out viscose glue then; In the process of film silk viscose glue; Fast glue is coated on the glass point mouth of film group device equably,, finally forms a glass film group device that has many film silks so that the film silk is sealed on the film group device.
Start vacuum pump then, through reduction valve with the pressure control in the vacuum tank 1 about 20kPa, pressure reading shows in pressure transducer, then; Open valve gradually, when waiting until the stable reading of pressure transducer, the data of record pressure transducer, then; Open heating rod, the temperature of controlling clear water in the Rinsing Area is at 25 ℃, and the record temperature reading, at this moment; Open valve, the clear water in the Rinsing Area is pressed into clear water in the water tank from Rinsing Area under the effect of film silk inside and outside differential pressure; When the reading of pressure transducer and pressure transducer is identical by the time, open electronic balance, and through the computer record data.At last, after computer record 7min data, stop record data, close vacuum pump, electronic balance and valve etc., deal with data.
Wherein, membrane flux computing formula:
Figure BDA0000096411340000041
Wherein, J representes membrane flux, the L/m of unit 2.h.
Δ P representes transmembrane pressure, the kPa of unit.
U representes viscosity of mixed liquid, the mpa.s of unit.
R representes membrane resistance, the m of unit -1
[beneficial effect]
Through contrast test, can confirm to make the accuracy of measurement of the clear water flux of the hollow-fibre membrane silk that the clear water source produces to improve 20%;
The membrane module that this test unit provides can be measured clear water flux and the clear water of film silk fast than flux, and efficiency of measurement is further improved.
[description of drawings]
Fig. 1 is the quick bonding synoptic diagram of membrane module in the determinator of hollow-fibre membrane clear water flux of the present invention.
Among the figure: 1, glass point mouth; 2, waterproof gasket cement; 3, hollow-fibre membrane silk; 4, the glass partition that catchments; 5, the glass water nozzle that catchments; 6, the glass water nozzle that catchments; 7, the glass pipeline that catchments;
Fig. 2 uses the mensuration process flow diagram of hollow-fibre membrane clear water flux determinator for the present invention.
Among the figure: 1, full glass film group device; 2, thermometer; 3, heating rod; 4, Rinsing Area; 5, glass valve; 6, pressure unit; 7, glass valve; 8, fluid reservoir; 9, electronic balance; 10, computer; 11, vacuum tank; 12, pressure unit; 13, reduction valve; 14, vacuum pump.
Fig. 3: pressure-clear water flux trend map.
[embodiment]
Below in conjunction with instance the present invention is further specified:
Present embodiment is measured than flux for the enhancement mode hollow fiber microfiltration membrane silk clear water flux and the clear water of certain hollow-fibre membrane producer, and as shown in Figure 1, membrane module has 12 enhancement mode hollow fiber mocromembrane silks 3; With waterproof gasket cement 2 the film silk is bonded on the glass point mouth 1; Glass glass point mouth 1 and the glass pipeline 7 that catchments is connected, and two groups of glass catchments between the pipeline 7 through glass partition 4 connections of catchmenting, and constitutes one group of membrane module; Membrane module is put into Rinsing Area, measure.
As shown in Figure 2, at Rinsing Area 4 full glass film group device 1 is set, and is provided with heating rod 3 and the thermometer 2 that links to each other with heating rod 3, be used for measuring the temperature of Rinsing Area.Said Rinsing Area 4 links to each other with fluid reservoir 8 through glass valve 5, and between Rinsing Area 4 and fluid reservoir 8, is provided with pressure unit 6.Fluid reservoir 8 is placed on the electronic balance 9, and other has computer 10 to be connected with electronic balance 9, can read, calculates and analyze the weight of fluid reservoir 8.The opposite side of fluid reservoir 8 links to each other with vacuum tank 11 through glass valve 7, also is provided with pressure unit 12 on the vacuum tank 11.The opposite side of vacuum tank 11 is connected with reduction valve 13 and vacuum pump 14.
During measurement, at first, start vacuum pump 14, through reduction valve 13 with the pressure control in the vacuum tank 11 about 10kPa; Then, open valve 7 gradually, when waiting until the stable reading of pressure transducer 12, the data of record pressure transducer; Then, open heating rod 3, the temperature of controlling clear water in the Rinsing Area 4 is about 25 ℃, and the record temperature reading; At this moment, open valve 5, the clear water in the Rinsing Area 4 is pressed into clear water in the water tank 8 from Rinsing Area 4 under the effect of film silk inside and outside differential pressure; When the reading of pressure transducer 6 and pressure transducer 12 is identical by the time, open electronic balance 9, and through computer 10 record data.At last, after computer record 7min data, stop record data, close vacuum pump, electronic balance and valve etc., deal with data.
Repeat above step, and respectively with the pressure control on the pressure transducer about 20kPa, 30kPa, 40kPa, finally can obtain pressure-clear water flux trend map, shown in accompanying drawing 3.
According to computing formula membrane flux computing formula:
Figure BDA0000096411340000051
Wherein, J representes membrane flux, the L/m of unit 2.h.
Δ P representes transmembrane pressure, the kPa of unit.
U representes viscosity of mixed liquid, the mpa.s of unit.
R representes membrane resistance, the m of unit -1
Can calculate when 20kPa, the clear water flux of this hollow-fibre membrane is 566.89LMH, and its clear water is 26.08LMHkPa than flux.

Claims (5)

1. the determinator of a hollow-fibre membrane clear water flux, it is characterized in that it by Rinsing Area and fitting system, membrane module, go out water management and digital data recording system, vacuum control and suction system are formed; Described Rinsing Area comprises heating rod, thermometer, pressure unit and a cover membrane module and a corresponding aspiration with fitting system; Describedly go out water management and digital data recording system comprises fluid reservoir, electronic balance, valve and computer; Described vacuum control and suction system comprise vacuum pump, vacuum tank, valve, reduction valve and pressure unit.
2. determinator according to claim 1 is characterized in that in the membrane module of said device, and the film silk braid is gone in the membrane module point mouth of processing with glass, immediately uses waterproof gasket cement with its port sealing.
3. determinator according to claim 1 is characterized in that with behind the bonding 1-2min of waterproof gasket cement membrane module being put into clear water, and is dry to prevent the film silk.
4. determinator according to claim 1; It is characterized in that clear water enters into fluid reservoir through membrane module under the effect of film silk inside and outside differential pressure, increase in time; The quality of fluid reservoir is also increasing, simultaneously electronic balance weighing and its qualitative data of computer record.
5. use the described determinator of claim 1 to measure the method for hollow-fibre membrane clear water flux, it is characterized in that under the swabbing action of vacuum pump, the pressure in the vacuum tank decreases; Pass through reduction valve; Pressure in the vacuum tank is adjusted to 20kPa and maintains under this pressure, and open valve 1 and 2 this moment, and clear water flow into the fluid reservoir from Rinsing Area under suction function; Through electronic balance weighing and its clear water quality data of computer record, calculate clear water flux and clear water and compare flux.
CN2011103015931A 2010-09-30 2011-09-27 Device and method for measuring clear water flux of hollow-fiber membrane Pending CN102353626A (en)

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CN102961970A (en) * 2012-11-22 2013-03-13 广州中国科学院先进技术研究所 Device for testing antifouling property of hollow-fibre membrane
CN107126844A (en) * 2017-06-21 2017-09-05 天津职业技术师范大学 Film silk flux test control system inside purifier
CN107843536A (en) * 2017-11-03 2018-03-27 天津碧水源膜材料有限公司 A kind of film wire throughput experimentation platform and its control system, control method

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CN101957304A (en) * 2010-09-30 2011-01-26 北京碧水源科技股份有限公司 Measuring device of clear water flux of hollow-fiber membrane and method for measuring clear water flux of hollow-fiber membrane by using measuring device
CN103743555B (en) * 2013-12-20 2016-08-24 安徽铜冠机械股份有限公司 Filter-board detection device
CN110231141B (en) * 2019-06-12 2021-05-11 江苏新宜中澳环境技术有限公司 Method for simulating membrane module in membrane bioreactor by using porous medium model
CN111111456B (en) * 2019-12-20 2022-01-25 天津膜天膜科技股份有限公司 Method for evaluating life of hollow fiber membrane
CN112569798B (en) * 2020-12-29 2023-06-02 苏州中色德源环保科技有限公司 Quick detection device of hollow fiber membrane
CN113720746B (en) * 2021-08-23 2022-07-22 合肥工业大学 Device and method for testing permeability of penetrating agent in fiber cloth

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Publication number Priority date Publication date Assignee Title
CN102961970A (en) * 2012-11-22 2013-03-13 广州中国科学院先进技术研究所 Device for testing antifouling property of hollow-fibre membrane
CN102961970B (en) * 2012-11-22 2015-02-18 广州中国科学院先进技术研究所 Device for testing antifouling property of hollow-fibre membrane
CN107126844A (en) * 2017-06-21 2017-09-05 天津职业技术师范大学 Film silk flux test control system inside purifier
CN107843536A (en) * 2017-11-03 2018-03-27 天津碧水源膜材料有限公司 A kind of film wire throughput experimentation platform and its control system, control method

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Application publication date: 20120215