CN107261852A - A kind of cleaning equipment and cleaning method of iron pollution micro-filtration/milipore filter - Google Patents

A kind of cleaning equipment and cleaning method of iron pollution micro-filtration/milipore filter Download PDF

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Publication number
CN107261852A
CN107261852A CN201710712739.9A CN201710712739A CN107261852A CN 107261852 A CN107261852 A CN 107261852A CN 201710712739 A CN201710712739 A CN 201710712739A CN 107261852 A CN107261852 A CN 107261852A
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CN
China
Prior art keywords
water
cleaning
membrane module
pipeline
valve
Prior art date
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Pending
Application number
CN201710712739.9A
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Chinese (zh)
Inventor
张宏宇
崔勇
石晔
罗辉甲
李旭
裴超迎
赵清波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BEIJING BODA WATER Co Ltd
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BEIJING BODA WATER Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by BEIJING BODA WATER Co Ltd filed Critical BEIJING BODA WATER Co Ltd
Priority to CN201710712739.9A priority Critical patent/CN107261852A/en
Publication of CN107261852A publication Critical patent/CN107261852A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis, ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14Ultrafiltration; Microfiltration
    • B01D61/145Ultrafiltration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis, ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14Ultrafiltration; Microfiltration
    • B01D61/147Microfiltration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis, ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14Ultrafiltration; Microfiltration
    • B01D61/20Accessories; Auxiliary operations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis, ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14Ultrafiltration; Microfiltration
    • B01D61/22Controlling or regulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D65/00Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/02Membrane cleaning or sterilisation ; Membrane regeneration
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2321/00Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/02Forward flushing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2321/00Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/04Backflushing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2321/00Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/16Use of chemical agents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/20Heavy metals or heavy metal compounds
    • C02F2101/203Iron or iron compound
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/005Processes using a programmable logic controller [PLC]
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/14Maintenance of water treatment installations

Abstract

The invention discloses a kind of cleaning equipment and cleaning method of iron pollution micro-filtration/milipore filter, the equipment includes circulating the cleaning water tank of connection successively by pipeline, flushing water pump, membrane module area, manganese sand filter, the top of cleaning water tank is provided with medicament dog-house, flushing water pump on the inlet channel in membrane module area with being provided with cleaning inlet valve, the production water end (W.E.) in membrane module area is connected by the water inlet of water production pipeline and manganese sand filter, the concentrated water end in membrane module area is connected by concentrated water pipeline and the water inlet of manganese sand filter, water production pipeline on concentrated water pipeline with being provided with backwater valve.The step of cleaning method of the present invention recoils including circulation immersion and backwash.The cleaning equipment of the present invention carries out circulation immersion and backwash recoil process to membrane module using decoction, can effectively remove iron pollution by that will clean water tank, flushing water pump, membrane module area, manganese sand filter circulation connection, and floor space is small removable, energy consumption is low, economical and practical, safe and reliable.

Description

A kind of cleaning equipment and cleaning method of iron pollution micro-filtration/milipore filter
Technical field
The invention belongs to the technical field of fouling membrane cleaning, and in particular to a kind of cleaning of iron pollution micro-filtration/milipore filter is set Standby and cleaning method.
Background technology
Membrane separation technique refers to the mixture of different-grain diameter molecule on a molecular scale when by pellicle, realizes selection Property separation technology.Membrane separation technique has been widely used in water treatment field, including drinking water, sewage disposal, Treated sewage reusing, Desalinization and ultra-pure water preparation etc..But as industrialization development, industrial wastewater and sanitary sewage are discharged such as water body, city City's sewage and underground water are polluted by materials such as the organic matter of broad categories, heavy metals, so as to aggravate fouling membrane, make UF membrane Technology flourishes by huge restriction and challenge, therefore how to carry out rationally effective cleaning to contaminated film and have Very important meaning.
Iron is a kind of common metal ion, is largely existed in water, and the inorganic matter using molysite as main component to it is micro-/ The pollution of milipore filter, is cleaned very difficult.In recent years, because surface water, underground water are constantly contaminated, the quality of iron is dense in water Degree also has the trend of rising, in water treatment technology, exacerbates risk of the micro-filtration/ultrafiltration technology by iron pollution.Meanwhile, with " coagulation+micro-filtration/ultrafiltration " technical research is goed deep into, either in new construction, or old engineering carries mark transformation is all substantial amounts of The technology of " coagulation+micro-filtration/ultrafiltration " is employed, and there is potential eutrophication to human body because aluminium is remained in water, iron system coagulation Agent is used widely.Numerous studies show that adding for coagulant is conducive to decelerating membrane pollution, extension cleaning frequency, but part Research finds that coagulation condition has significant impact for irreversible membrane pollution, for this irreversible pollution, Conventional cleaning method It can not remove, production is caused a hidden trouble, operation cost can be improved.In addition, built water factory and pipe network are with the operation time limit Increase, the risk aggravation being corroded, " the red water " produced in such as running water transportation.Once inside pipe network pipeline and water factory Element (including equipment, pipeline, tank body etc.) be corroded, it can will contain iron contaminants and introduce water body, cause in micro-filtration/ultrafiltration system Micro-filtration/milipore filter irreversible membrane fouling.
Conventional to be cleaned using citric acid after micro-filtration/milipore filter polluted by iron, the cleaning frequency increases, cleaning performance compared with Difference so that operating cost increase, reliability of water supply reduction.Therefore, develop a kind of iron pollution micro-filtration/milipore filter cleaning equipment and Method is very necessary.
The content of the invention
To solve the problems of the prior art, it is an object of the invention to provide a kind of the clear of iron pollution micro-filtration/milipore filter Wash equipment and cleaning.
To reach above-mentioned purpose, the invention provides a kind of cleaning equipment of iron pollution micro-filtration/milipore filter, the equipment includes Circulate the cleaning water tank of connection, flushing water pump, membrane module area, manganese sand filter successively by pipeline, the top of cleaning water tank is set Medicament dog-house is equipped with, flushing water pump on the inlet channel in membrane module area with being provided with cleaning inlet valve, the production in membrane module area Water end (W.E.) is connected by the water inlet of water production pipeline and manganese sand filter, and the concentrated water end in membrane module area passes through concentrated water pipeline and manganese sand mistake The water inlet connection of filter, water production pipeline on concentrated water pipeline with being provided with backwater valve;Flushing water pump produces water with membrane module area Backwash inlet valve is provided with the connecting pipe at end, membrane module area is also associated with the row of being provided with drainage pipeline, drainage pipeline Penstock.
Further, cleaning water tank side bottom is connected with the inlet channel that makes up a prescription, and is provided with and makes up a prescription on the inlet channel that makes up a prescription Inlet valve;Cleaning water tank opposite side is connected with multiple sampling pipes of high low setting, each sampling pipe and is provided with sampling Valve.
Wherein, multiple upper spacers and lower clapboard are provided with alternatively up and down in cleaning water tank.
Further, it is provided with pipeline heater on the connecting pipe of cleaning water tank and flushing water pump.
Further, the equipment also includes movable car, and cleaning water tank, flushing water pump, membrane module area, manganese sand filter are equal It is fixed on movable car.
Further, the equipment also include PLC, PLC respectively with flushing water pump, cleaning inlet valve, Backwater valve, backwash inlet valve, water discharging valve connection.
Present invention also offers a kind of method for applying the cleaning equipment cleaning iron pollution micro-filtration/milipore filter, this method Comprise the following steps:
(1) membrane module to be cleaned is placed on membrane module area, is respectively connected the water inlet end of membrane module with inlet channel, produces water End is connected with water production pipeline, and concentrated water end is connected with concentrated water pipeline;
(2) medicament is added, decoction is generated in cleaning water tank, cleaning inlet valve, water production pipeline and concentrated water pipeline is opened On backwater valve, close backwash inlet valve, water discharging valve, open flushing water pump and circulated;Close flushing water pump, immersion Membrane module, is then turned on flushing water pump recycling;
(3) after circulation is finished, backwash inlet valve and water discharging valve are opened, close cleaning inlet valve, water production pipeline with Backwater valve on concentrated water pipeline, opens flushing water pump and is backwashed.
Further, after membrane module is connected in step (1), water discharging valve and cleaning water tank and manganese sand filter are opened In atmospheric valve, be vented whole equipment.
Further, in step (2), medicament is alkaline agent and/or sour agent, and alkaline agent is sodium hydroxide and sodium hypochlorite;Sour agent For oxalic acid and hydrochloric acid.
Further, in step (2), 0.8-1.2h is circulated, 1.8-2.5h is soaked, 0.8-1.2h is recycled.
Beneficial effects of the present invention are:The present invention cleaning equipment by will cleaning water tank, flushing water pump, membrane module area, Manganese sand filter circulation connection, carries out circulation immersion and backwash recoil process to membrane module using decoction, can effectively remove Iron pollution, and floor space is small removable, energy consumption is low, economical and practical, safe and reliable.
Brief description of the drawings
Fig. 1 is the structural representation of the cleaning equipment of iron pollution micro-filtration/milipore filter of the present invention;
In figure:
1st, water tank is cleaned;101st, medicament dog-house;2nd, flushing water pump;3rd, membrane module area;4th, manganese sand filter;5th, water inlet pipe Road;6th, inlet valve is cleaned;7th, water production pipeline;8th, concentrated water pipeline;9th, backwater valve;10th, connecting pipe;11st, backwash water intaking valve Door;12nd, drainage pipeline;13rd, water discharging valve;14th, make up a prescription inlet channel;15th, make up a prescription inlet valve;16th, sampling pipe;17th, take Sample valve;18th, upper spacer;19th, lower clapboard;20th, pipeline heater;21st, atmospheric valve.
Embodiment
The present invention is done below by Figure of description and is further described in detail.
As shown in Figure 1, the cleaning equipment of iron pollution of the invention micro-filtration/milipore filter is included by the pipeline successively company of circulation Logical cleaning water tank 1, flushing water pump 2, membrane module area 3, manganese sand filter 4, the top of cleaning water tank 1 are provided with medicament dog-house 101, flushing water pump 2 leads to being provided with cleaning inlet valve 6, the production water end (W.E.) in membrane module area 3 on the inlet channel 5 in membrane module area 3 The water inlet that water production pipeline 7 is crossed with manganese sand filter 4 is connected, and the concentrated water end in membrane module area 3 passes through concentrated water pipeline 8 and filtration with manganese sand The water inlet connection of device 4, water production pipeline 7 on concentrated water pipeline 8 with being provided with backwater valve 9;Flushing water pump 2 and membrane module area 3 Backwash inlet valve 11 is provided with the connecting pipe 10 for producing water end (W.E.), membrane module area 3 is also associated with drainage pipeline 12, drainage pipeline Water discharging valve 13 is provided with 12.
The cleaning equipment of the present invention is by setting corresponding pipeline and valve to clean water tank 1, flushing water pump 2, membrane module Area 3, manganese sand filter 4 circulate connection successively, can realize effective cleaning of the membrane module to being used in ultrafiltration system.Here connect Enter manganese sand filter 4, the water inlet of manganese sand filter 4 is connected with membrane module area 3, delivery port is connected with cleaning water tank 1, manganese sand mistake Filter 4 can not only be filtered to the decoction after cleaning, can also further remove iron contaminants.In manganese sand filter 4 Filter core filtrate can be filtered to decoction, and the ferrous iron or bivalent manganese of dissolved state can also be oxidized into by manganese sand filtering material The compound of undissolved ferric iron or tetravalent manganese, so that iron contaminants be removed.The cleaning equipment of the present invention not only can be real (just washing) peripheral passage is now cleaned, backwash recoil can also be carried out, can be cleaned for iron pollution micro-filtration/milipore filter, effectively Ground removes iron contaminants, recovers membrane flux.
As prioritization scheme, in present embodiment, cleaning water tank 1 side bottom is connected with the inlet channel 14 that makes up a prescription, Make up a prescription and be provided with the inlet valve 15 that makes up a prescription on inlet channel 14;The cleaning opposite side of water tank 1 is connected with multiple samplings of high low setting Sample cock 17 is provided with pipeline 16, each sampling pipe 16.
Water tank 1 is cleaned in operation production water, may act as using into water regulating reservoir, adding of agent adjustment water inlet water can be carried out Matter, so as to obtain different pollution types, Pollution Study is carried out according to operational factor.Water tank 1 is cleaned when equipment is cleaned, It may act as cleaning medicine-chest to use, according to the difference of pollution type, adjustment medicament kind and added amount of chemical carry out cleaning method and ground Study carefully.By setting multiple sampling pipes 16, can cleaning water tank 1 in Stratified Sampling, to cleaning decoction in pollutant carry out successively Analysis.
As prioritization scheme, in present embodiment, be provided with alternatively up and down in cleaning water tank 1 multiple upper spacers 18 with Lower clapboard 19, multiple upper spacers 18 will clean in water tank 1 with lower clapboard 19 and be separated into shuttle snakelike water passage.With During medicine, upper spacer 18 can carry out hydraulic mixing with lower clapboard 19, without extra increase mixing plant, but carry out waterpower and stir certainly Mix, saved the energy.
As prioritization scheme, in present embodiment, cleaning water tank 1 on the connecting pipe of flushing water pump 2 with being provided with Pipeline heater 20.Pipeline heater 20 can be heated to the decoction in cleaning water tank 1, and decoction is entered by flushing water pump 2 Enter to membrane module area 3 so that the cleaning performance of membrane module is more preferably.
As prioritization scheme, in present embodiment, the equipment also includes movable car, cleaning water tank 1, flushing water pump 2nd, membrane module area 3, manganese sand filter 4 are each attached on movable car.The cleaning equipment of the present invention is concentrated and is fixed on movable car On, floor space is small and removable.
As prioritization scheme, in present embodiment, the equipment also includes PLC, PLC respectively with clearly Wash water pump 2, cleaning inlet valve 6, backwater valve 9, backwash inlet valve 11, water discharging valve 13 are connected.Clean in water tank 1 and install There are the measuring instrumentss such as pH meter.The water inlet end in membrane module area, production water end (W.E.), it is mounted on pressure gauge on the pipeline at concentrated water end, it is right respectively Intake pressure, production water pressure, the concentrated water pressure of membrane module are detected.On the water inlet end in membrane module area and the pipeline of production water end (W.E.) also Transmissometer can be installed.The measuring instrumentss such as pH meter, pressure gauge, transmissometer are connected with PLC, realize that detection data are adopted certainly Collection, and record storage.PLC can be intake with automatic control control flushing water pump 2, cleaning inlet valve 6, backwater valve 9, backwash The unlatching of valve 11, water discharging valve 13, realizes automation.PLC can also be connected with display, be easy to long-range understanding The wash course of the cleaning equipment, has been truly realized remote management, improves efficiency.
Present invention also offers a kind of method for applying the cleaning equipment cleaning iron pollution micro-filtration/milipore filter, this method Comprise the following steps:
(1) membrane module to be cleaned is placed on membrane module area 3, is respectively connected the water inlet end of membrane module with inlet channel 5, production Water end (W.E.) is connected with water production pipeline 7, and concentrated water end is connected with concentrated water pipeline 8.
Wherein, the water tray that enters of membrane module bottom is fixed on inlet channel 5 by clip, membrane module production water end (W.E.) passes through Plastic flexible pipe is connected with water production pipeline 7, and membrane module concentrated water end is connected by plastic flexible pipe with concentrated water pipeline 8.Plastic flexible pipe is reserved Certain length, can adjust connecting portion, so as to realize the installation of the membrane module of different model.Liquid material enters membrane module, due to portion Packet point is more easily by film, and the liquid material into membrane module is by being divided into two strands after membrane module, the liquid material by film part is Penetrating fluid, the liquid material that envelope is retained i.e. trapped fluid, penetrating fluid is by producing water end (W.E.) into water production pipeline 7, and trapped fluid passes through concentrated water End enters concentrated water pipeline 8.
After membrane module connection, the atmospheric valve 21 in water discharging valve 6 and cleaning water tank 1 and manganese sand filter 3 is opened, is made whole Individual equipment emptying.
(2) medicament is put into from medicament administration mouthful 101, opens the inlet valve 14 that makes up a prescription and make up a prescription, medicament is made with water by waterpower With being thoroughly mixed.
The actual conditions of iron pollution include following three kinds:Predominantly iron pollution, iron pollution are with Organic Pollution, iron pollution With other metal ion inorganic pollutions.Composite reagent is carried out according to actual pollution condition.The membrane module of predominantly iron pollution makes Cleaned with 2% oxalic acid and 2% hydrochloric acid;Iron pollution with Organic Pollution membrane module using 4% sodium hydroxide, 5000ppm times Sodium chlorate, 2% oxalic acid and the cleaning of 2% hydrochloric acid;Iron pollution uses 2% oxalic acid, 2% with the membrane module of other metal ion pollutions Hydrochloric acid and 2%EDTA cleanings.
Cleaning inlet valve 6, water production pipeline 7 and the backwater valve 9 on concentrated water pipeline 8 are opened, backwash inlet valve is closed 11st, water discharging valve 13, open flushing water pump 2 and carry out circulation 0.8-1.2h, decoction to be cleaned can be opened after returning to cleaning water tank 1 Pipeline heater 20;Flushing water pump 2 is closed, membrane module 1.8-2.5h is soaked, the recycling of flushing water pump 2 0.8- is then turned on 1.2h。
(3) after circulation is finished, backwash inlet valve 11 and water discharging valve 13 are opened, cleaning inlet valve 6, water producing pipe is closed Backwater valve 9 on road and 7 concentrated water pipelines 8, opens flushing water pump 2 and carries out backwash, when cleaning medicine-chest Chinese medicine liquid is finished, opens Made up a prescription inlet valve 15, and membrane component is recoiled.
Experimental example
1st, certain regeneration water factory's ultrafiltration is run using current constant mode, and flux set is 43L/m2* h, initial pressure is 0.1MPa, EFM (enhancing flux is maintained) cleaning, 3~5 days EFM cleaning frequencies, Chemical cleaning week are carried out when operating pressure reaches 0.16MPa 2~3 months phases.Sodium hypochlorite storage tank undercoating is corroded, tank body iron dissolution, and carries out ultrafiltration system with liquid chemical feeding, causes Ultrafiltration system polluted by iron, the pollution of membrane module is mainly iron pollution.It is conventional not good using the cleaning performance of citric acid, membranous system The pressure 0.12MPa after high-voltage operation, cleaning, the EFM cleaning frequency foreshorten to 12h, Chemical cleaning cycle time to two weeks.
Cleaned using the cleaning method of the present invention, flow set is 43L/m2* h, pressure 0.09MPa after cleaning, surely Surely one week pressure is run without obvious rising.
2nd, certain regeneration water factory front end sewage plant carries out proposing mark transformation, adds after coagulation process, coagulation directly to enter without precipitation Enter filter cloth system, and after enter regeneration water factory through ultraviolet disinfection, in the debugging stage because control is unstable, a large amount of ferric flocculants with Debugging production water carries out ultrafiltration system, and debugging stage producing water water quality is unstable, and content of organics is higher, causes ultrafiltration system organic Thing and iron pollution.The pollution of membrane module is iron pollution with organic contamination.
Ultrafiltration is run using current constant mode before debugging, and flux set is 47.8L/m2* h, initial pressure is 0.1MPa, works as fortune Row pressure carries out EFM cleanings, 3~5 days EFM cleaning frequencies, 2~3 months Chemical cleaning cycles when reaching 0.15MPa.Debugging is led Ultrafiltration system is caused to be contaminated, water quality normally carries out conventional cleaning using citric acid afterwards, and flux is unable to reach 47.8L/m2* h is run, Flux is adjusted downward to 43.5L/m2* pressure 0.11-0.13MPa, the EFM cleaning frequency foreshortens to 12h, Chemical cleaning week after h, and cleaning Phase foreshortens to two weeks.
Cleaned using the cleaning method of the present invention, flow set is 47.8L/m after cleaning2* h, pressure after cleaning 0.09-0.1MPa stable operations, the EFM cleaning frequencies were at 4-7 days.
3rd, the ultrafiltration system of Beijing Yizhuang Development District recycled water is after operation 8 years, and ultrafiltration system polluted by iron is with other Metal ion inorganic pollution.The pollution of membrane module is iron pollution with other metal ion inorganic pollutions.Using the present invention Cleaning method cleaned, after cleaning, iron and other metal ions are completely removed.The permeability rate conservation rate of film is 99%, Stretching strength retentivity after film silk cleaning is that 87%, extensibility conservation rate is 67%, and the normal operation of ultrafiltration system is not influenceed.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies Change, equivalent substitution, improvement etc., should be included in the scope of the protection.

Claims (10)

1. a kind of cleaning equipment of iron pollution micro-filtration/milipore filter, it is characterised in that the equipment is included by the pipeline successively company of circulation Logical cleaning water tank (1), flushing water pump (2), membrane module area (3), manganese sand filter (4), the top of cleaning water tank are provided with medicine Agent dog-house (101), flushing water pump is with being provided with cleaning inlet valve (6), membrane module area on the inlet channel (5) in membrane module area Production water end (W.E.) be connected by water production pipeline (7) with the water inlet of manganese sand filter, the concentrated water end in membrane module area passes through concentrated water pipeline (8) it is connected with the water inlet of manganese sand filter, water production pipeline on concentrated water pipeline with being provided with backwater valve (9);Flushing water pump Produced with membrane module area and be provided with backwash inlet valve (11) on the connecting pipe (10) of water end (W.E.), membrane module area is also associated with drainpipe Water discharging valve (13) is provided with road (12), drainage pipeline.
2. the cleaning equipment of iron pollution micro-filtration/milipore filter according to claim 1, it is characterised in that cleaning water tank side Bottom, which is connected with the inlet channel that makes up a prescription (14), the inlet channel that makes up a prescription, is provided with the inlet valve that makes up a prescription (15);Clean water tank another Side is connected with multiple sampling pipes (16) of high low setting, each sampling pipe and is provided with sample cock (17).
3. the cleaning equipment of iron pollution micro-filtration/milipore filter according to claim 2, it is characterised in that in cleaning water tank Under be arranged alternately multiple upper spacers (18) and lower clapboard (19).
4. the cleaning equipment of iron pollution micro-filtration/milipore filter according to claim 1, it is characterised in that clean water tank and clear Pipeline heater (20) is provided with the connecting pipe of wash water pump.
5. the cleaning equipment of iron pollution micro-filtration/milipore filter according to claim 1, it is characterised in that the equipment also includes Movable car, cleaning water tank, flushing water pump, membrane module area, manganese sand filter are each attached on movable car.
6. the cleaning equipment of iron pollution micro-filtration/milipore filter according to claim any one of 1-5, it is characterised in that this sets It is standby also to include PLC, PLC respectively with flushing water pump, cleaning inlet valve, backwater valve, backwash inlet valve, Water discharging valve is connected.
7. a kind of method of cleaning equipment cleaning iron pollution micro-filtration/milipore filter described in application claim 1, it is characterised in that This method comprises the following steps:
(1) membrane module to be cleaned is placed on membrane module area, is respectively connected the water inlet end of membrane module with inlet channel, production water end (W.E.) with Water production pipeline is connected, and concentrated water end is connected with concentrated water pipeline;
(2) medicament is added, decoction is generated in cleaning water tank, is opened on cleaning inlet valve, water production pipeline and concentrated water pipeline Backwater valve, closes backwash inlet valve, water discharging valve, opens flushing water pump and is circulated;Flushing water pump is closed, film group is soaked Part, is then turned on flushing water pump recycling;
(3) after circulation is finished, backwash inlet valve and water discharging valve are opened, cleaning inlet valve, water production pipeline and concentrated water is closed Backwater valve on pipeline, opens flushing water pump and is backwashed.
8. the cleaning method of iron pollution micro-filtration/milipore filter according to claim 6, it is characterised in that by film in step (1) After component connection, the atmospheric valve in water discharging valve and cleaning water tank and manganese sand filter is opened, whole equipment is vented.
9. the cleaning method of iron pollution micro-filtration/milipore filter according to claim 6, it is characterised in that in step (2), medicine Agent is alkaline agent and/or sour agent, and alkaline agent is sodium hydroxide and sodium hypochlorite;Sour agent is oxalic acid and hydrochloric acid.
10. the cleaning method of iron pollution micro-filtration/milipore filter according to claim 6, it is characterised in that in step (2), follow Ring 0.8-1.2h, soaks 1.8-2.5h, recycles 0.8-1.2h.
CN201710712739.9A 2017-08-18 2017-08-18 A kind of cleaning equipment and cleaning method of iron pollution micro-filtration/milipore filter Pending CN107261852A (en)

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Application Number Priority Date Filing Date Title
CN201710712739.9A CN107261852A (en) 2017-08-18 2017-08-18 A kind of cleaning equipment and cleaning method of iron pollution micro-filtration/milipore filter

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Application Number Priority Date Filing Date Title
CN201710712739.9A CN107261852A (en) 2017-08-18 2017-08-18 A kind of cleaning equipment and cleaning method of iron pollution micro-filtration/milipore filter

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108176230A (en) * 2017-12-27 2018-06-19 天津膜天膜科技股份有限公司 A kind of cleaning method of high salinity brine and seawater cleaning ultrafiltration membrane

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108176230A (en) * 2017-12-27 2018-06-19 天津膜天膜科技股份有限公司 A kind of cleaning method of high salinity brine and seawater cleaning ultrafiltration membrane

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