CN107569902A - A kind of processing method and processing device of dyeing waste water - Google Patents
A kind of processing method and processing device of dyeing waste water Download PDFInfo
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- CN107569902A CN107569902A CN201710925044.9A CN201710925044A CN107569902A CN 107569902 A CN107569902 A CN 107569902A CN 201710925044 A CN201710925044 A CN 201710925044A CN 107569902 A CN107569902 A CN 107569902A
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- polyacrylate
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- 239000002351 wastewater Substances 0.000 title claims abstract description 62
- 238000004043 dyeing Methods 0.000 title claims abstract description 27
- 238000003672 processing method Methods 0.000 title claims abstract description 18
- 238000012545 processing Methods 0.000 title claims abstract description 17
- 239000000919 ceramic Substances 0.000 claims abstract description 104
- 239000012528 membrane Substances 0.000 claims abstract description 82
- 229920000058 polyacrylate Polymers 0.000 claims abstract description 60
- 238000000034 method Methods 0.000 claims abstract description 49
- 238000004140 cleaning Methods 0.000 claims abstract description 45
- 230000008569 process Effects 0.000 claims abstract description 40
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000001914 filtration Methods 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000002002 slurry Substances 0.000 claims abstract description 19
- 238000011084 recovery Methods 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims description 24
- 239000012065 filter cake Substances 0.000 claims description 21
- 238000011045 prefiltration Methods 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 20
- 238000002156 mixing Methods 0.000 claims description 20
- 239000002253 acid Substances 0.000 claims description 17
- 239000000706 filtrate Substances 0.000 claims description 17
- 239000012530 fluid Substances 0.000 claims description 16
- 239000003513 alkali Substances 0.000 claims description 15
- 239000012141 concentrate Substances 0.000 claims description 15
- 230000000149 penetrating effect Effects 0.000 claims description 13
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 238000009990 desizing Methods 0.000 claims description 12
- 229910017604 nitric acid Inorganic materials 0.000 claims description 12
- 239000012466 permeate Substances 0.000 claims description 12
- 239000011148 porous material Substances 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 10
- 230000002000 scavenging effect Effects 0.000 claims description 10
- 239000012298 atmosphere Substances 0.000 claims description 9
- 239000004744 fabric Substances 0.000 claims description 8
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 7
- 230000033001 locomotion Effects 0.000 claims description 6
- 229910052573 porcelain Inorganic materials 0.000 claims description 6
- 239000010453 quartz Substances 0.000 claims description 6
- -1 sodium alkyl benzene Chemical class 0.000 claims description 6
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 5
- 239000011734 sodium Substances 0.000 claims description 5
- 229910052708 sodium Inorganic materials 0.000 claims description 5
- 229940077388 benzenesulfonate Drugs 0.000 claims description 4
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 4
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 4
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000010812 mixed waste Substances 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 230000014759 maintenance of location Effects 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 3
- 238000007906 compression Methods 0.000 claims 3
- 230000004907 flux Effects 0.000 abstract description 22
- 238000005516 engineering process Methods 0.000 abstract description 12
- 230000000903 blocking effect Effects 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 238000005374 membrane filtration Methods 0.000 abstract description 3
- 239000011241 protective layer Substances 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 15
- 239000003795 chemical substances by application Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 238000007670 refining Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000000108 ultra-filtration Methods 0.000 description 3
- 229920002472 Starch Polymers 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000000502 dialysis Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
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- 238000001471 micro-filtration Methods 0.000 description 2
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- 229920000642 polymer Polymers 0.000 description 2
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- 230000009467 reduction Effects 0.000 description 2
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- 239000007787 solid Substances 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229940092714 benzenesulfonic acid Drugs 0.000 description 1
- 230000003851 biochemical process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229920003123 carboxymethyl cellulose sodium Polymers 0.000 description 1
- 229940063834 carboxymethylcellulose sodium Drugs 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000009295 crossflow filtration Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013051 drainage agent Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000013076 target substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/08—Prevention of membrane fouling or of concentration polarisation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/16—Use of chemical agents
- B01D2321/168—Use of other chemical agents
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention relates to a kind of processing method and processing device of dyeing waste water, more particularly to the processing method of desized wastewater in dyeing process, belong to water-treatment technology field.The processing method that the present invention uses can solve the problems, such as that ceramic membrane is made film operating flux low by the pollution of polyacrylate slurry, while solve the problems, such as that polyacrylate blocks after fenestra that flux recovery is low after caused Membrane cleaning.The technical concept that the present invention uses is：Filter aid diatomite is added in pending polyacrylate slurry; in membrane filtration processes, the generation of fouling membrane with the protective layer of shape film formation surface, can be on the one hand prevented; on the other hand it can prevent polyacrylate from blocking membrane flux so that flux can preferably recover after Membrane cleaning；And filter aid cannot be easily caused the channel blockage of tubular ceramic membrane in filtering.
Description
Technical field
The present invention relates to a kind of processing method and processing device of dyeing waste water, more particularly to desized wastewater in dyeing process
Processing method, belong to water-treatment technology field.
Background technology
The processes such as drift refining, dyeing, stamp, arrangement in dyeing and printing process produce the largely waste water containing organic pollution, tool
Have the features such as water is big, organic pollution content is high, color and luster is deep, alkalescence is big, change of water quality is big, belong to intractable industrial wastewater it
One.Engineering of printing and dyeing and generally requires one or many washings using water as medium, and water consumption is bigger, the waste water of discharge into
Divide complexity, environmental pollution is serious, and the difficulty of processing is very big.The general processing method of dyeing waste water has physico-chemical process (such as absorption, gas
Floating, coagulation, oxidation, electrolysis etc.) and biochemical process and combinations thereof, in view of the special circumstances of dyeing waste water water quality, single at present
(for example ceramic membrane filter technology and other technologies join the not ideal of wastewater processing technology treatment effect so the combination of more technologies
With) have become the development trend of techniques of Dyeing Wastewater Treatment；Simultaneously as the reclamation rate of printing and dyeing mill's water is only 7%, whole weaving
Industry reusing rate is the minimum industry of all industry Treated sewage reusing rates in the whole nation less than 10%, so relevant researcher gradually will
Notice is transferred on technology of middle water recycle, and inorganic ceramic membrane also plays important, new role in this respect.
Polyacrylate is a kind of high molecular weight water soluble polymer, have excellent serous coat, adhesiveness, wearability and easily
The characteristics of compatible with other slurries, it is applied to the industries such as weaving, papermaking, chemical industry as slurry.According to statistics, China's only spinning sizing agent
The polyacrylate amount of consumption just causes huge in 120,000 more than t, annual caused desized wastewater up to more than 2,500 ten thousand t to environment
Pressure, due to the BOD5/CODCr values of polyacrylate<0.1, the biodegradability of desized wastewater is substantially reduced, adds place
Manage difficulty.
Membrane separation technique reaches the purpose of purification sewage by the separation to Pollutants in Wastewater, concentration, recovery, mainly has
Micro-filtration, ultrafiltration, nanofiltration and counter-infiltration membrane separation processes have the advantages that energy-conservation, without phase transformation, easy to operate, equipment is simple, and can return
Recycling material is received, has been found to be practicable in terms for the treatment of of dyeing wastewater.Polyacrylate in desized wastewater
If slurry can recycle, resource and cost can be saved, creates economic benefit, moreover it is possible to mitigates difficulty and the row of reduction of wastewater treatment
High-volume micro-filtrations and ultrafiltration are separated based on screening mechanism, can retain suspended particles and macromolecular in desized wastewater,
But the effect of separation is not had to the ion in water in ultra-filtration process, liquid flows through film surface under pressure promotion, less than film
The small molecule solute and water in hole turn into scavenging solution, polyacrylate etc. through moisture film and are trapped more than the material of fenestra, with concentration
Liquid form is discharged, and can be reused for desizing after adjusting polyacrylate concentrate to suitable concentration, scavenging solution can be also back to
Desizing.
CN103755050A discloses a kind of desized wastewater membrane method treating process, and technique comprises the following steps：1st step, incite somebody to action
Polyacrylate desized wastewater is sent into purpose ceramic-film filter and filtered, and obtains the first concentrate and the first penetrating fluid, and first
Penetrating fluid delivers to desizing workshop as desizing liquid reuse；The first concentrate obtained by 2nd step, the 1st step carries out plus water dialysis, obtains
Second penetrating fluid, when the pH of the second penetrating fluid for 7 ~~7.5 when, stop dialysis, proceed by concentration, obtain the second concentrate,
Second concentrate reclaims for slurry, and the first penetrating fluid is back to polyacrylate desized wastewater tank.
A problem in the presence of above-mentioned technology is：Polymer concentration, viscosity are all larger in polyacrylate slurry,
When concentration and recovery is carried out in purpose ceramic-film filter, polyacrylate can produce serious influence to the filtration flux of ceramic membrane, make
Flux is relatively low；Also, polyacrylate, which can enter in the duct of ceramic membrane, forms blocking pollution so that the ceramics after filter process
Film does not allow easy cleaning, and the recovery difficulty that result in membrane flux is big.
The content of the invention
The purpose of the present invention is：The ceramic membrane solved in CN103755050A technologies is polluted by polyacrylate slurry
And the problem of making film operating flux low, while solve polyacrylate and block after fenestra that flux recovery is low after caused Membrane cleaning
Problem.The technical concept that the present invention uses is：Filter aid diatomite is added in pending polyacrylate slurry, in film mistake
During filter, the generation of fouling membrane with the protective layer of shape film formation surface, can be on the one hand prevented, on the other hand can prevent polypropylene
Acid esters blocks membrane flux so that flux can preferably recover after Membrane cleaning.
Technical scheme is：
A kind of processing method of dyeing waste water, comprises the following steps：
1st step, polyacrylate desized wastewater is sent into prefilter and filtered；
2nd step, filter aid is added in the filtrate obtained in the 1st step, after being well mixed, be sent into tubular ceramic film filter
Row filtering；
3rd step, the penetrating fluid of tubular ceramic film filter are sent into desizing workshop as desizing liquid reuse；
4th step, the concentrate of tubular ceramic film filter are sent into plate and frame filter press and extrude filter aid, the filtrate of plate and frame filter press
It is the polyacrylate slurry of recovery.
In the 1st described step, prefilter is quartz filter.
In the 2nd described step, filter aid is diatomite, and addition is 0.5~2wt% of waste water weight.
In the 2nd described step, the ceramic membrane average pore size scope in tubular ceramic film filter is 50~200nm, filtering
The crossflow velocity of process is 1~5m/s, and feed temperature is 20~45 DEG C in filter process, filter pressure scope is 0.1~
0.5MPa。
In the 4th described step, the filter cake of plate and frame filter press is sent into burner to burn in air atmosphere or oxygen atmosphere
Processing, the diatomite being recycled.
In the 4th described step, the average pore size of the filter cloth of plate and frame filter press is at 5~20 μm.
In the 2nd described step, tubular ceramic film filter after filtering, it is necessary to carry out alkali cleaning and acid successively
Cleaning, described alkali clean the step of be：Using by sodium hydroxide, sodium carboxymethylcellulose, sodium alkyl benzene sulfonate according to weight
Than 4：0.3~0.5：The compound alkaline cleaner of 1~1.5 mixing is cleaned, and compound alkaline cleaner dosage in water is 2~
4wt%, the temperature of cleaning process is 40~50 DEG C, 4~6m/s of crossflow velocity in cleaning process, 30~60min of scavenging period；Institute
State acid cleaning the step of be：To be cleaned using nitric acid, the purity of nitric acid is 40~65wt%, nitric acid dosage in water is 1~
3wt%, the temperature of cleaning process is 40~50 DEG C, 4~6m/s of crossflow velocity in cleaning process, 20~40min of scavenging period.
A kind of processing unit of dyeing waste water, including：
Prefilter, for carrying out pre-filtering to polyacrylate desized wastewater；
First delivery pump, is connected to prefilter, for polyacrylate desized wastewater to be pressed into prefilter；
Mixing channel, is connected to the material liquid outlet of prefilter, and filter aid is connected with mixing channel and adds tank, for prefilter
Permeate in add filter aid, mixing channel is used to filter aid being well mixed in waste water；
Second delivery pump, is connected to mixing channel, for mixed waste water to be pressed into tubular ceramic film filter；
Tubular ceramic film filter, for carrying out secondary filter to the waste water obtained in mixing channel, polyacrylate slurry is cut
Stay concentration；
Flow container is permeated, is connected to the per-meate side of tubular ceramic film filter, for storing obtained filtrate；
Plate and frame filter press, the concentration side of tubular ceramic film filter is connected to, for the separation to the filter aid in concentrate；
Press filtration liquid storage tank, the per-meate side of plate and frame filter press is connected to, for storing the obtained filtrate containing polyacrylate；
Combustion chamber, filter aid is recycled for carrying out burning processing to the filter cake of plate and frame filter press；
High-pressure air source, plate and frame filter press is connected to, the filtering to plate and frame filter press provides pressure.
Also include：Alkaline cleaner adds tank, tubular ceramic film filter is connected to, for tubular ceramic film filter
Alkaline cleaner is added during cleaning.
Also include：Acid cleaner adds tank, tubular ceramic film filter is connected to, for tubular ceramic film filter
Acid cleaner is added during cleaning.
The structure of tubular ceramic film filter includes：Assembly housing, end socket is respectively equipped with the both ends of assembly housing, sealed
Material inlet and material outlet are respectively equipped with head, tubular ceramic membrane is installed in assembly housing；Both ends inside assembly housing
Provided with floral disc, pressing plate is provided with end socket, the both ends of tubular ceramic membrane are respectively fitted in the perforate on floral disc and pressing plate, and pressing plate will
Floral disc realizes the sealing of tubular ceramic membrane after compressing, the pipeline in tubular ceramic membrane connects with end socket；It is additionally provided with assembly housing
Penetrating fluid exports；Anti-blockage structure is additionally provided with the inside of the end socket provided with material outlet, for preventing the pipe of tubular ceramic membrane
Road is blocked by filter cake；Anti-blockage structure includes：
First fixed plate, is fixed on inside end socket；
First fixture is connected with spoiler, spoiler direction pipe towards the side of the pipeline of tubular ceramic membrane by the first spring
The side of the pipeline of formula ceramic membrane is provided with the body of rod, and the body of rod stretches into the inside of the pipeline of tubular ceramic membrane；
Second fixed plate, is fixed on inside end socket, and the second fixed plate passes through the second bullet towards the side of the pipeline of tubular ceramic membrane
Spring is connected to spoiler, and the side of spoiler towards the pipeline of tubular ceramic membrane is additionally provided with flexure strip, and the side of flexure strip is provided with
Protuberance；Limiting card is additionally provided with end socket, limiting card is used for the motion for limiting protuberance；When the first spring is in normal condition
When, second spring is in impaction state；When flexure strip deforms, limiting card no longer has position-limiting action to protuberance.
Beneficial effect
The processing method that the present invention uses can solve ceramic membrane is made film operating flux by the pollution of polyacrylate slurry
The problem of low, while solve the problems, such as that polyacrylate blocks after fenestra that flux recovery is low after caused Membrane cleaning.The present invention adopts
Technical concept is：Filter aid diatomite is added in pending polyacrylate slurry, can be with membrane filtration processes
The protective layer of shape film formation surface, the generation of fouling membrane is on the one hand prevented, on the other hand can prevent polyacrylate blocks film from leading to
Amount so that flux can preferably recover after Membrane cleaning；And filter aid cannot be easily caused tubular ceramic membrane in filtering
Channel blockage.
Brief description of the drawings
Fig. 1 is the installation drawing that the present invention uses；
Fig. 2 is flux vs' figure of purpose ceramic-film filter in filtering；
Fig. 3 is the cleaning flux recovery figure of ceramic membrane in filtering；
Fig. 4 is the mechanism figure that tubular ceramic membrane particle on running forms filter cake process；
Fig. 5 be tubular ceramic membrane entrance point and the port of export different filter cake thicknesses schematic diagram；
Fig. 6 is the structure chart of tubular ceramic film filter；
Fig. 7 is the enlarged drawing that plug structure is deterred in Fig. 6；
Fig. 8 is the structure chart at Fig. 7 next filtering moment.
Wherein, the 1, first delivery pump；2nd, prefilter；3rd, mixing channel；4th, filter aid adds tank；5th, the second delivery pump；6、
Tubular ceramic film filter；7th, flow container is permeated；8th, plate and frame filter press；9th, press filtration liquid storage tank；10th, combustion chamber；11st, high-pressure air source；
12nd, alkaline cleaner adds tank；13rd, acid cleaner adds tank；14th, assembly housing；15th, end socket；16th, penetrating fluid exports；17th, tubular type
Ceramic membrane；18th, material inlet；19th, material outlet；20th, pressing plate；21st, floral disc；22nd, flange；23rd, sealing ring；24th, anti-clogging knot
Structure；25th, the first fixed plate；26th, spoiler；27th, the first spring；28th, second spring；29th, the body of rod；30th, hairbrush；31；Flexure strip；
32nd, protuberance；33rd, limiting card.
Embodiment
The present invention is described in further detail below by embodiment.But those skilled in the art will manage
Solution, the following example is merely to illustrate the present invention, and should not be taken as limiting the scope of the invention.Unreceipted specific skill in embodiment
Art or condition person, (such as write according to the technology described by document in the art or condition with reference to Xu Nan equalitys《Inoranic membrane point
From technology and application》, Chemical Industry Press, 2003) or carry out according to product description.Agents useful for same or instrument are not noted
Bright production firm person, being can be by the conventional products of acquisition purchased in market.
Approximate language used herein can be used for modifying any quantity statement in entire disclosure and claims, and it can
Permit being changed under conditions of the basic function for not causing its related changes.Therefore, repaiied by term such as " about "
The value of decorations is not limited to specified exact value.In at least some cases, approximate language can be with the instrument for measuring the value
Precision it is corresponding.Unless being indicated otherwise in context or sentence, otherwise range limit can be combined and/or exchange, and
And this scope is confirmed as and including all subranges contained herein.Except in embodiment is operated or elsewhere
In indicate outside, the numeral of the amounts of all expression compositions used in specification and claims, reaction condition etc. or
Expression shall be construed as the modification by word " about " in all cases.
Scope is used as using what the value of range format expression should be interpreted as not only including clearly including in a flexible way
The numerical value of limit value, but also including covering all single numbers or subinterval within the range, just as each numerical value and sub-district
Between be expressly recited out.For example, " about 0.1% to about 5% " concentration range should be understood to not only include what is clearly included
The concentration of about 0.1% to about 5%, in addition to the single concentration in the range of alluding to（Such as, 1%, 2%, 3% and 4%）And subinterval（Example
Such as, 0.1% to 0.5%, 1% to 2.2%, 3.3% to 4.4%）.
" removal " in this specification, not only include the situation for removing target substance completely, in addition to part removes and (reduced
The amount of the material) situation." purification " in this specification, including remove arbitrary or specific impurity.
Word " comprising " used herein, "comprising", " having " or its any other variant are intended to cover non-exclusionism
Including.Technique, method, article or the equipment for e.g., including listing key element are not necessarily limited by those key elements, but can include it
He is not expressly set out or belonged to this technique, method, article or the intrinsic key element of equipment.It should be understood that when an element
When being mentioned with another element " connection ", it can be joined directly together with other elements or is indirectly connected with other elements, and
Inserted with element between them.
The present invention described percentage refer to mass percent in the case of without special instruction.
Present invention waste water to be dealt with is dyeing waste water, can especially refer to contain polyacrylate in desizing processes
Desized wastewater.
The method of use is：
1st step, polyacrylate desized wastewater is sent into prefilter and filtered；Pre-filtered purpose is to get rid of waste water
In bulky grain impurity, protect follow-up purpose ceramic-film filter, prefilter can be quartz filter；
2nd step, filter aid is added in the filtrate obtained in the 1st step, after being well mixed, be sent into tubular ceramic film filter
Row filtering, filter aid is diatomite, and addition is 0.5~2wt% of waste water weight；The effect of filtrate agent in process is to make pottery
The surface of porcelain film forms cake layer, prevents polyacrylate from blocking ceramic membrane duct, prevents fouling membrane, improves filtration flux；
The flux recovery rate after Membrane cleaning can be improved；After ceramic membrane filter, refining agent, alkali in waste water can pass through film layer, enter
Per-meate side, and polyacrylate is trapped within concentrate side, the ceramic membrane average pore size scope in tubular ceramic film filter is
50~200nm, the crossflow velocity of filter process are 1~5m/s, and feed temperature is 20~45 DEG C in filter process, filter pressure model
It is 0.1~0.5MPa to enclose；
3rd step, the penetrating fluid of tubular ceramic film filter are sent into desizing workshop as desizing liquid reuse；
4th step, the concentrate of tubular ceramic film filter are sent into plate and frame filter press and extrude filter aid, the filtrate of plate and frame filter press
It is the polyacrylate slurry of recovery., can be by polyacrylate and filter aid because the filtering accuracy of flame filter press is smaller
Separated, after diatomaceous particle is larger, is retained by filter cloth, and polyacrylate passes through filter cloth, can be used for slurry workshop
Reuse, the average pore size of the filter cloth of plate and frame filter press is at 5~20 μm.
The filter cake of plate and frame filter press is sent into burner the burning processing in air atmosphere or oxygen atmosphere, can be by poly- third
After olefin(e) acid ester destroys burning, it is left diatomite, can reuse again.
In the 2nd described step, tubular ceramic film filter after filtering, it is necessary to carry out alkali cleaning and acid successively
Cleaning, described alkali clean the step of be：Using by sodium hydroxide, sodium carboxymethylcellulose, sodium alkyl benzene sulfonate according to weight
Than 4：0.3~0.5：The compound alkaline cleaner of 1~1.5 mixing is cleaned, and compound alkaline cleaner dosage in water is 2~
4wt%, the temperature of cleaning process is 40~50 DEG C, 4~6m/s of crossflow velocity in cleaning process, 30~60min of scavenging period；Institute
State acid cleaning the step of be：To be cleaned using nitric acid, the purity of nitric acid is 40~65wt%, nitric acid dosage in water is 1~
3wt%, the temperature of cleaning process is 40~50 DEG C, 4~6m/s of crossflow velocity in cleaning process, 20~40min of scavenging period.Hydrogen
The effect of sodium oxide molybdena is removal organic polluter, and there is carboxymethyl cellulose sodium surface anion to be easily adsorbed at polyacrylate
It is more scattered in cleaning fluid using it on particle surface, the surfactant of sodium alkyl benzene sulfonate, play scattered effect.
Based on above-mentioned method, processing unit structure provided by the invention is as shown in Figure 1：
Prefilter 2, for carrying out pre-filtering to polyacrylate desized wastewater；
First delivery pump 1, is connected to prefilter 2, for polyacrylate desized wastewater to be pressed into prefilter 2；
Mixing channel 3, the material liquid outlet of prefilter 2 is connected to, filter aid is connected with mixing channel 3 and adds tank 4, for pre- mistake
Filter aid is added in the permeate of filter 2, mixing channel 3 is used to filter aid being well mixed in waste water；
Second delivery pump 5, is connected to mixing channel 3, for mixed waste water to be pressed into tubular ceramic film filter 6；
Tubular ceramic film filter 6, for carrying out secondary filter to the waste water obtained in mixing channel 3, by polyacrylate slurry
Retention concentration；
Flow container 7 is permeated, is connected to the per-meate side of tubular ceramic film filter 6, for storing obtained filtrate；
Plate and frame filter press 8, the concentration side of tubular ceramic film filter 6 is connected to, for the separation to the filter aid in concentrate；
Press filtration liquid storage tank 9, the per-meate side of plate and frame filter press 8 is connected to, for storing the obtained filtrate containing polyacrylate；
Combustion chamber 10, filter aid is recycled for carrying out burning processing to the filter cake of plate and frame filter press 8；
High-pressure air source 11, plate and frame filter press 8 is connected to, the filtering to plate and frame filter press 8 provides pressure.
Also include：Alkaline cleaner adds tank 12, tubular ceramic film filter 6 is connected to, for tubular ceramic membrane mistake
Filter 6 adds alkaline cleaner when cleaning.
Also include：Acid cleaner adds tank 13, tubular ceramic film filter 6 is connected to, for tubular ceramic membrane mistake
Filter 6 adds acid cleaner when cleaning.
Using tubular ceramic membrane when being filtered, in the entrance point of membrane tube and the super-cell cake layer of the port of export
Thickness is different, the THICKNESS CALCULATION pattern such as formula of cake layer（1）It is shown, referring to Fig. 4（By particle sedimentation model in cross-flow filtration
Analysis Yang Zezhi, Xi Danli, Mao Yanmei to filter cake thickness, Donghua University's journal（Natural science edition）The 6th phase of volume 34）：
（1）；
In formula, Δ L is cake layer thickness；F1 is perpendicular to the power on film surface caused by permeating；F2 is caused by cross-flow velocity
The power parallel to film surface；F3 is the power caused by adhering to and rubbing backward；S is the specific surface area of particle；C is particle matter
Measure concentration；Δ t is filtration time.
In filter process, there can be larger flow at material inlet end, therefore flow velocity f2 is larger, the diatomite of formation
Filter aid cake layer is easily acted on by cross-flow and removed, therefore, will not in the super-cell cake layer thickness that entrance point is formed
It is thicker；And as the progress of filtering, penetrating fluid constantly enter per-meate side from the surface of ceramic membrane, the flow in membrane tube will phase
Answer ground to reduce, cause formula（1）In K3F2 items correspondingly reduce, have led to filter cake thickness Δ L increase, filter cake can be caused
Layer easily forms thicker structure in the port of export, as shown in figure 5, the super-cell cake layer thickness of entrance point and the port of export
It is different；In the case of having some extreme, the cake layer of the port of export can occur diatomite sometimes by the adhesive attraction by greasy dirt and
Produce and mutually bond, increase, until cause passage by the situation of the obstructions such as particulate matter, stickum, and particulate matter is in a steady stream not
Enter disconnectedly, obturator can be caused constantly to increase, whole membrane tube passage is all blocked and is scrapped.Therefore, how height is avoided
The feed liquid of solid content is not in that channel blockage is urgent problem to be solved in engineering in tubular type membrane filtration processes.
The structure of purpose ceramic-film filter employed in the present invention as shown in fig. 6, including：Assembly housing 14, in component shell
The both ends of body 14 are respectively equipped with end socket 15, and material inlet 18 and material outlet 19 are respectively equipped with end socket 15, in assembly housing 14
Tubular ceramic membrane 17 is installed；Both ends inside assembly housing 14 are provided with floral disc 21, and pressing plate 20, tubular type pottery are provided with end socket 15
The both ends of porcelain film 17 are respectively fitted in the perforate on floral disc 21 and pressing plate 20, and pressing plate 20 realizes tubular ceramic after floral disc 21 is compressed
The sealing of film 17, the pipeline in tubular ceramic membrane 17 connect with end socket 15；Penetrating fluid outlet 16 is additionally provided with assembly housing 14；
Anti-blockage structure 24 is additionally provided with the inside of the end socket provided with material outlet 19, for preventing the pipeline of tubular ceramic membrane 17
Blocked by super-cell filter cake；
The enlarged drawing of anti-blockage structure 24 as shown in fig. 7, comprises：
First fixed plate 25, is fixed on inside end socket 15；
First fixture 25 is connected with spoiler 26, choked flow towards the side of the pipeline of tubular ceramic membrane 17 by the first spring 27
Plate 26 is provided with the body of rod 29 towards the side of the pipeline of tubular ceramic membrane 17, and the body of rod 29 stretches into the interior of the pipeline of tubular ceramic membrane 17
Portion；
Second fixed plate 28, is fixed on inside end socket 15, and the second fixed plate 28 is led to towards the side of the pipeline of tubular ceramic membrane 17
Cross second spring 28 and be connected to spoiler 26, the side of spoiler 26 towards the pipeline of tubular ceramic membrane 17 is additionally provided with flexure strip
31, the side of flexure strip 31 is provided with protuberance 32；Limiting card 33 is additionally provided with end socket 15, limiting card 33 is used to limit protuberance
32 motion；
When the first spring 27 is in normal condition, second spring 28 is in impaction state.
In filter process, the running of above-mentioned anti-blockage structure 24 is as follows：When starting filtering, because tubular type is made pottery
The fluid of pipeline has larger flow velocity and an impulsive force in porcelain film 17, when under state as shown in Figure 7, can impact spoiler
26, after 26 stress of spoiler, it can be moved to the direction close to material outlet 19 so that it is solid that second spring 28 is compressed in second
On fixed board 34, and because protuberance 32 is connected on flexure strip 31, therefore, protuberance 31 is located at the close former of limiting card 33
The side of material outlet 19；When the first spring 27 is in normal condition（Neither it is stretched, the state not also being compacted）Under, the second bullet
The side for the close material outlet 19 that spring 28 is compacted and makes protuberance 31 be located at limiting card 33.When in filter process, tubular type is made pottery
When pipe outlet side will occur the aggregation of super-cell cake layer, block in porcelain film 17, the flow in pipeline can be caused
Reduce, therefore, fluid can also reduce to the impulsive force of spoiler 26, and second spring 28 has the trend for recovering deformation, with pipe
The further reduction of trickle in road, protuberance 32 is more and more tightly pressed on limiting card 33 by second spring 28, due to convex
Go out portion 32 to be mounted on flexure strip 31, when the trend of the recovery deformation of second spring 28 is bigger, flexure strip 31 can be made upward
Upspring, limiting card 33 can not stop flexure strip 31 again, and now second spring 28 can be hit by a bullet to the pipeline of tubular ceramic membrane 17 suddenly
Go out, the body of rod 29 is stretched into suddenly into pipeline, destroy the super-cell filter cake Rotating fields to be formed, filter cake is become thin
Pine, after the alluvial in cake layer is discharged, because hydraulic pressure acts on, has more feed liquids and flowed out from perforate, improved
The clearance rate of diatomite alluvial；Simultaneously because second spring 28 is ejected from impaction state, and second spring 28 is in pressure
The first spring 27 is to be in normal condition during tight state, then after spoiler 26 is to pipe motion, the first spring 27 is unexpected
Stretching, therefore, the first spring 27 also have the process of a reply deformation after being stretched so that the body of rod 29 can also generate one
Towards the vibrations in the direction of material outlet 19, that is to say, that the mutual linkage of the first spring 28 and second spring 28, generate in Fig. 7
In spoiler 26 " to the right "-" to the left " coherent motion, such a action can further make diatomite drainage
Agent cake layer is more loose, is also easier to be washed away by current.After current wash filter cake open, inside the pipeline of tubular ceramic membrane 17
Current can increase suddenly again so that the backward lateral movement of material outlet 19 1 of the stress of spoiler 26, because water flow pressure is larger, make
Obtain second spring 28 to be compacted again, after flexure strip 31 pops up, protuberance 31 is returned back to the court of limiting card 33 again
To the side of material outlet 19 so that Fig. 8 state returns back to state as shown in Figure 6 again.So move in circles so that
In filter process, the end of filter just circulate as Fig. 7-Fig. 8 " blocking ", " loosening ", " a small amount of discharge ", " wash silt open
Product " moves back and forth, and solves the problems, such as that filter cake blocks filtration channel.In one embodiment, it is additionally provided with the body of rod 29
Hairbrush 30, hairbrush 30 are used to break up cake layer；The effect loosened to super-cell cake layer can further be improved.
Embodiment 1
Desized wastewater from different workshops is after quartz filter filters, CODCrAbout 16400 mg/L, alkali concn
0.8%, agent concentration 0.4% is refined, then 2wt% filter aid diatomite is added in waste water, it is sent into ceramics as Figure 6-Figure 8
Filtered in film filter, the average pore size 200nm of ceramic membrane, setting filter pressure 0.2 MPa, crossflow velocity 4m/s, filter
Most polyacrylate, liquor C OD are eliminated in liquidCrValue is about 6700 mg/L, alkali concn and refining agent concentration in clear liquid
It is consistent with intaking.Contain super-cell and polyacrylate in the concentrate of ceramic membrane, be sent into average pore size at 10 μm
Filtered in the flame filter press of filter cloth, diatomite is trapped within filter cake, is mainly polyacrylate in filtrate, and feeding is moved back
Starch workshop reuse.Diatomite is handled in the combustion chamber of air atmosphere in 200~300 DEG C of burnings, is removed polyacrylate, is obtained
Reclaim diatomite.
Embodiment 2
Desized wastewater from different workshops is after quartz filter filters, CODCrAbout 16400 mg/L, alkali concn
0.8%, agent concentration 0.4% is refined, then 1wt% filter aid diatomite is added in waste water, it is sent into ceramics as Figure 6-Figure 8
Filtered in film filter, the average pore size 50nm of ceramic membrane, setting filter pressure 0.4 MPa, crossflow velocity 3m/s, filtrate
In eliminate most polyacrylate, liquor C ODCrValue is about 4200 mg/L, in clear liquid alkali concn and refining agent concentration with
Water inlet is consistent.Contain super-cell and polyacrylate in the concentrate of ceramic membrane, be sent into filter cloth of the average pore size at 6 μm
Flame filter press in filtered, diatomite is trapped within filter cake, in filtrate be mainly polyacrylate, be sent into desizing car
Between reuse.Diatomite is handled in the combustion chamber of air atmosphere in 200~300 DEG C of burnings, is removed polyacrylate, is recycled
Diatomite.
Embodiment 3
Desized wastewater from different workshops is after quartz filter filters, CODCrAbout 16400 mg/L, alkali concn
0.8%, agent concentration 0.4% is refined, then 1.5wt% filter aid diatomite is added in waste water, it is sent into pottery as Figure 6-Figure 8
Filtered in porcelain film filter, the average pore size 50nm of ceramic membrane, setting filter pressure 0.5 MPa, crossflow velocity 5m/s, filter
Most polyacrylate, liquor C OD are eliminated in liquidCrValue is about 4100 mg/L, alkali concn and refining agent concentration in clear liquid
It is consistent with intaking.Contain super-cell and polyacrylate in the concentrate of ceramic membrane, be sent into average pore size at 10 μm
Filtered in the flame filter press of filter cloth, diatomite is trapped within filter cake, is mainly polyacrylate in filtrate, and feeding is moved back
Starch workshop reuse.Diatomite is handled in the combustion chamber of air atmosphere in 200~300 DEG C of burnings, is removed polyacrylate, is obtained
Reclaim diatomite.
Embodiment 4
Difference with embodiment 3 is：Anti-blockage structure 24 is not installed in tubular ceramic film filter.
Reference examples 1
Difference with embodiment 3 is：Do not add filter aid diatomite in waste water.
The operating flux of above filter process ceramic membrane is as shown in Fig. 2 stabilized flux is as shown in the table：
As can be seen from the above table, embodiment 3 has preferable membrane flux relative to the processing method of reference examples 1, adds silicon
Diatomaceous earth contributes to the blocking for preventing polyacrylate slurry on film surface, due to can not preferably be gone in film filter in embodiment 4
, easily there is duct obstruction, result in polymer, the mixture of particulate matter being collectively forming except diatomite and polyacrylate
Filter damages.
Membrane cleaning effect compares：
Carrying out the step of alkali cleans and acid cleans, and alkali cleans successively is：Using by sodium hydroxide, sodium carboxymethylcellulose, alkyl
Benzene sulfonic acid sodium salt is according to weight than 4：0.4：The compound alkaline cleaner of 1 mixing is cleaned, and compound alkaline cleaner is used in water
Amount is 3wt%, and the temperature of cleaning process is 45 DEG C, crossflow velocity 6m/s in cleaning process, scavenging period 40min；The step of acid cleaning
Suddenly it is：Cleaned using nitric acid, the purity of nitric acid is 65wt%, and nitric acid dosage in water is 2wt%, and the temperature of cleaning process is
44 DEG C, crossflow velocity 5m/s in cleaning process, scavenging period 30min.After over cleaning, the recovery situation of membrane flux is calculated, such as
Shown in Fig. 3, the recovery rate in embodiment 3 can reach more than 85%, and recovery rate is 75% or so in reference examples 1.
Claims (10)
1. a kind of processing method of dyeing waste water, it is characterised in that comprise the following steps：
1st step, polyacrylate desized wastewater is sent into prefilter and filtered；
2nd step, filter aid is added in the filtrate obtained in the 1st step, after being well mixed, be sent into tubular ceramic film filter
Row filtering；
3rd step, the penetrating fluid of tubular ceramic film filter are sent into desizing workshop as desizing liquid reuse；
4th step, the concentrate of tubular ceramic film filter are sent into plate and frame filter press and extrude filter aid, the filtrate of plate and frame filter press
It is the polyacrylate slurry of recovery.
2. the processing method of dyeing waste water according to claim 1, it is characterised in that in the 1st described step, prefilter
It is quartz filter.
3. the processing method of dyeing waste water according to claim 1, it is characterised in that in the 2nd described step, filter aid is
Diatomite, addition are 0.5~2wt% of waste water weight；In the 2nd described step, the ceramic membrane in tubular ceramic film filter is put down
Equal pore diameter range is 50~200nm, and the crossflow velocity of filter process is 1~5m/s, and feed temperature is 20~45 in filter process
DEG C, filter pressure scope is 0.1~0.5MPa.
4. the processing method of dyeing waste water according to claim 1, it is characterised in that in the 4th described step, plate compression
The filter cake of machine is sent into burner burning processing, the diatomite being recycled in air atmosphere or oxygen atmosphere.
5. the processing method of dyeing waste water according to claim 1, it is characterised in that in the 4th described step, plate compression
The average pore size of the filter cloth of machine is at 5~20 μm.
6. the processing method of dyeing waste water according to claim 1, it is characterised in that in the 2nd described step, tubular ceramic
Film filter after filtering, it is necessary to carry out alkali cleaning and acid cleaning successively.
7. the processing method of dyeing waste water according to claim 6, it is characterised in that be the step of described alkali cleaning：
Using by sodium hydroxide, sodium carboxymethylcellulose, sodium alkyl benzene sulfonate according to weight than 4：0.3~0.5：1~1.5 mixing is answered
Close alkaline cleaner to be cleaned, compound alkaline cleaner dosage in water is 2~4wt%, and the temperature of cleaning process is 40~50
DEG C, 4~6m/s of crossflow velocity in cleaning process, 30~60min of scavenging period；The step of described acid cleaning is：Using nitric acid
Cleaned, the purity of nitric acid is 40~65wt%, and nitric acid dosage in water is 1~3wt%, and the temperature of cleaning process is 40~50
DEG C, 4~6m/s of crossflow velocity in cleaning process, 20~40min of scavenging period.
A kind of 8. processing unit of dyeing waste water, it is characterised in that including：
Prefilter（2）, for carrying out pre-filtering to polyacrylate desized wastewater；
First delivery pump（1）, it is connected to prefilter（2）, for polyacrylate desized wastewater to be pressed into prefilter（2）；
Mixing channel（3）, it is connected to prefilter（2）Material liquid outlet, in mixing channel（3）On be connected with filter aid add tank（4）, use
In to prefilter（2）Permeate in add filter aid, mixing channel（3）For filter aid to be well mixed in waste water；
Second delivery pump（5）, it is connected to mixing channel（3）, for mixed waste water to be pressed into tubular ceramic film filter（6）；
Tubular ceramic film filter（6）, for mixing channel（3）In obtained waste water carry out secondary filter, by polyacrylate
Slurry retention concentration；
Permeate flow container（7）, it is connected to tubular ceramic film filter（6）Per-meate side, for storing obtained filtrate；
Plate and frame filter press（8）, it is connected to tubular ceramic film filter（6）Concentration side, for the filter aid in concentrate
Separation；
Press filtration liquid storage tank（9）, it is connected to plate and frame filter press（8）Per-meate side, for store obtain containing polyacrylate
Filtrate；
Combustion chamber（10）, for plate and frame filter press（8）Filter cake carry out burning processing be recycled filter aid；
High-pressure air source（11）, it is connected to plate and frame filter press（8）, to plate and frame filter press（8）Filtering provide pressure.
9. the processing unit of dyeing waste water according to claim 8, it is characterised in that also include：Alkaline cleaner adds tank
（12, it is connected to tubular ceramic film filter（6）, for tubular ceramic film filter（6）Alkaline cleaner is added during cleaning；
Also include：Acid cleaner adds tank（13）, it is connected to tubular ceramic film filter（6）, for tubular ceramic film filter
（6）Acid cleaner is added during cleaning.
10. the processing unit of dyeing waste water according to claim 8, it is characterised in that tubular ceramic film filter（6）'s
Structure includes：Assembly housing（14）, in assembly housing（14）Both ends be respectively equipped with end socket（15）, end socket（15）It is upper to set respectively
There is material inlet（18）And material outlet（19）, in assembly housing（14）Tubular ceramic membrane is installed（17）；Assembly housing（14）
Internal both ends are provided with floral disc（21）, in end socket（15）It is interior to be provided with pressing plate（20）, tubular ceramic membrane（17）Both ends be respectively fitted over
Floral disc（21）And pressing plate（20）On perforate in, pressing plate（20）By floral disc（21）Tubular ceramic membrane is realized after compression（17）It is close
Envelope, tubular ceramic membrane（17）In pipeline and end socket（15）Connection；In assembly housing（14）It is additionally provided with penetrating fluid outlet（16）；
Provided with material outlet（19）The inside of end socket be additionally provided with anti-blockage structure（24）, for preventing tubular ceramic membrane（17）Pipeline
Blocked by filter cake；Anti-blockage structure（24）Including：
First fixed plate（25）, it is fixed on end socket（15）It is internal；
First fixture（25）Towards tubular ceramic membrane（17）The side of pipeline pass through the first spring（27）It is connected with spoiler
（26）, spoiler（26）Towards tubular ceramic membrane（17）The side of pipeline be provided with the body of rod（29）, the body of rod（29）Stretch into tubular type pottery
Porcelain film（17）Pipeline inside；
Second fixed plate（28）, it is fixed on end socket（15）Inside, the second fixed plate（28）Towards tubular ceramic membrane（17）Pipeline
Side pass through second spring（28）It is connected to spoiler（26）, spoiler（26）Towards tubular ceramic membrane（17）Pipeline one
Side is additionally provided with flexure strip（31）, flexure strip（31）Side be provided with protuberance（32）；In end socket（15）In be additionally provided with limiting card
（33）, limiting card（33）For limiting protuberance（32）Motion；When the first spring（27）During in normal condition, second spring
（28）In impaction state；The body of rod（29）On be additionally provided with hairbrush（30）, hairbrush（30）For breaing up cake layer.
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| CN201710925044.9A CN107569902B (en) | 2017-10-02 | 2017-10-02 | A kind of processing method and processing device of dyeing waste water |
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| CN101514057A (en) * | 2008-11-26 | 2009-08-26 | 浙江美欣达印染集团股份有限公司 | Method for recycling textile, printing and dyeing wastewater |
| CN203563649U (en) * | 2013-07-29 | 2014-04-30 | 中国环境科学研究院 | Turbid fruit and vegetable juice processing equipment and fruit and vegetable juice preparation device with same |
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2017
- 2017-10-02 CN CN201910336762.1A patent/CN110078174A/en not_active Withdrawn
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| CN101514057A (en) * | 2008-11-26 | 2009-08-26 | 浙江美欣达印染集团股份有限公司 | Method for recycling textile, printing and dyeing wastewater |
| CN203563649U (en) * | 2013-07-29 | 2014-04-30 | 中国环境科学研究院 | Turbid fruit and vegetable juice processing equipment and fruit and vegetable juice preparation device with same |
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| CN111661983A (en) * | 2020-06-16 | 2020-09-15 | 南京霄祥工程技术有限公司 | Municipal wastewater treatment method and system |
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