CN106630011A - Combined cleaning method of water reuse reverse osmosis system for printing and dyeing wastewater - Google Patents
Combined cleaning method of water reuse reverse osmosis system for printing and dyeing wastewater Download PDFInfo
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- CN106630011A CN106630011A CN201510742594.8A CN201510742594A CN106630011A CN 106630011 A CN106630011 A CN 106630011A CN 201510742594 A CN201510742594 A CN 201510742594A CN 106630011 A CN106630011 A CN 106630011A
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- infiltration system
- reverse osmosis
- cleaning method
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- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 58
- 238000004140 cleaning Methods 0.000 title claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000004043 dyeing Methods 0.000 title claims abstract description 32
- 239000002351 wastewater Substances 0.000 title claims abstract description 31
- 239000012528 membrane Substances 0.000 claims abstract description 20
- 230000000844 anti-bacterial effect Effects 0.000 claims abstract description 19
- 239000003899 bactericide agent Substances 0.000 claims abstract description 15
- 230000001590 oxidative effect Effects 0.000 claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 238000001764 infiltration Methods 0.000 claims description 86
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 42
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 38
- 238000006396 nitration reaction Methods 0.000 claims description 37
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 30
- 239000010865 sewage Substances 0.000 claims description 27
- 239000002253 acid Substances 0.000 claims description 24
- 238000007654 immersion Methods 0.000 claims description 18
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 15
- 239000004094 surface-active agent Substances 0.000 claims description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 239000003513 alkali Substances 0.000 claims description 10
- -1 small molecule salt Chemical class 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
- JLHMJWHSBYZWJJ-UHFFFAOYSA-N 1,2-thiazole 1-oxide Chemical group O=S1C=CC=N1 JLHMJWHSBYZWJJ-UHFFFAOYSA-N 0.000 claims description 5
- 244000248349 Citrus limon Species 0.000 claims description 5
- 235000005979 Citrus limon Nutrition 0.000 claims description 5
- 239000011734 sodium Substances 0.000 claims description 5
- 229910052708 sodium Inorganic materials 0.000 claims description 5
- 230000001954 sterilising effect Effects 0.000 claims description 4
- UEUXEKPTXMALOB-UHFFFAOYSA-J tetrasodium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O UEUXEKPTXMALOB-UHFFFAOYSA-J 0.000 claims description 4
- 229910021529 ammonia Inorganic materials 0.000 claims description 3
- 239000002738 chelating agent Substances 0.000 claims description 3
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims description 3
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 3
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 claims description 2
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 2
- 239000004141 Sodium laurylsulphate Substances 0.000 claims description 2
- 239000002585 base Substances 0.000 claims description 2
- 238000011010 flushing procedure Methods 0.000 claims description 2
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims description 2
- 239000001488 sodium phosphate Substances 0.000 claims description 2
- 229910000162 sodium phosphate Inorganic materials 0.000 claims description 2
- MZSDGDXXBZSFTG-UHFFFAOYSA-M sodium;benzenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C1=CC=CC=C1 MZSDGDXXBZSFTG-UHFFFAOYSA-M 0.000 claims description 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- VPTUPAVOBUEXMZ-UHFFFAOYSA-N (1-hydroxy-2-phosphonoethyl)phosphonic acid Chemical compound OP(=O)(O)C(O)CP(O)(O)=O VPTUPAVOBUEXMZ-UHFFFAOYSA-N 0.000 claims 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 1
- 150000003839 salts Chemical class 0.000 abstract description 4
- 239000012459 cleaning agent Substances 0.000 abstract 2
- 230000000813 microbial effect Effects 0.000 abstract 1
- 239000002957 persistent organic pollutant Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 description 17
- 239000012530 fluid Substances 0.000 description 12
- 239000000243 solution Substances 0.000 description 8
- 239000003344 environmental pollutant Substances 0.000 description 7
- 231100000719 pollutant Toxicity 0.000 description 7
- 239000000084 colloidal system Substances 0.000 description 4
- 229940051841 polyoxyethylene ether Drugs 0.000 description 4
- 229920000056 polyoxyethylene ether Polymers 0.000 description 4
- DBVJJBKOTRCVKF-UHFFFAOYSA-N Etidronic acid Chemical compound OP(=O)(O)C(O)(C)P(O)(O)=O DBVJJBKOTRCVKF-UHFFFAOYSA-N 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000013043 chemical agent Substances 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000002068 microbial inoculum Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- BHZOKUMUHVTPBX-UHFFFAOYSA-M sodium acetic acid acetate Chemical class [Na+].CC(O)=O.CC([O-])=O BHZOKUMUHVTPBX-UHFFFAOYSA-M 0.000 description 2
- JHJUUEHSAZXEEO-UHFFFAOYSA-M sodium;4-dodecylbenzenesulfonate Chemical compound [Na+].CCCCCCCCCCCCC1=CC=C(S([O-])(=O)=O)C=C1 JHJUUEHSAZXEEO-UHFFFAOYSA-M 0.000 description 2
- NEVBYCDQGXFCCZ-UHFFFAOYSA-N 1-propylpyrido[2,3-d][1,3]oxazine-2,4-dione Chemical compound C1=CC=C2C(=O)OC(=O)N(CCC)C2=N1 NEVBYCDQGXFCCZ-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 101150096185 PAAS gene Proteins 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 229910021502 aluminium hydroxide Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000005493 condensed matter Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- MOTZDAYCYVMXPC-UHFFFAOYSA-N dodecyl hydrogen sulfate Chemical compound CCCCCCCCCCCCOS(O)(=O)=O MOTZDAYCYVMXPC-UHFFFAOYSA-N 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- LDHBWEYLDHLIBQ-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide;hydrate Chemical compound O.[OH-].[O-2].[Fe+3] LDHBWEYLDHLIBQ-UHFFFAOYSA-M 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
Classifications
-
- 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
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- 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
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
- B01D65/06—Membrane cleaning or sterilisation ; Membrane regeneration with special washing compositions
-
- 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
-
- 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
- B01D2321/12—Use of permeate
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/20—Prevention of biofouling
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (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)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention provides a combined cleaning method of a water reuse reverse osmosis system for printing and dyeing wastewater. The reverse osmosis system can be rapidly and efficiently cleaned according to various site conditions. In order to solve problems, the combined cleaning method of the water reuse reverse osmosis system for the printing and dyeing wastewater includes the steps: cleaning a reverse osmosis membrane by cleaning liquid containing cleaning agent water solution of non-oxidizing bactericides, organic pollutant cleaning agents and anti-scaling agents; cleaning the reverse osmosis membrane by the reverse osmosis system. The water reuse reverse osmosis system for the printing and dyeing wastewater comprises a first-stage reverse osmosis system and a second-stage reverse osmosis system. The reverse osmosis membrane is cleaned by the cleaning liquid, microbial, organic and scale pollution slowly generated on the reverse osmosis membrane can be emphatically avoided, the salt content of produced water of the reverse osmosis system can be effectively reduced, the water yield of the reverse osmosis system is improved, and the pressure difference of the reverse osmosis membrane before and after cleaning is reduced.
Description
Technical field
Technical solution of the present invention is related to dyeing waste water Treated sewage reusing counter-infiltration system combined type cleaning technical field, specifically
It is related to a kind of dyeing waste water Treated sewage reusing counter-infiltration system combined type cleaning method.
Background technology
Reverse osmosis technology (RO) be the sixties in 20th century rise a new technique, domestic reverse osmosis technology
Application start from the later stage seventies, be used for quasiconductor and electronics pure water, gradually expand electric power after the eighties to
And other industry, spread to drinking water treatment to the nineties.At present, reverse osmosis membrane extensively should
For multiple fields such as electric power, petrochemical industry, iron and steel, electronics, printing and dyeing, food and drinks.Reverse osmosiss film water
After processing system is using a period of time, film can inevitably be contaminated, and after fouling membrane membrane filtration can hinder
Power increase, flux depression, salt rejection rate decline, pressure reduction increase, also result in the shortening of film service life.
Because reverse osmosiss are entirely different with traditional filtration, the latter's water all by filtering layer, will be retained by backwash
Pollutant remove from filtering layer, and RO is then a part of water with the direction vertical with film by film, now salt
Class and colloidal substance are concentrated on film surface, take away condensed matter by the concentrated water flowed with film parallel direction.
After operation a period of time, concentrated water side can accumulate colloid, metal-oxide, thin to reverse osmosis unit on film
The materials such as bacterium, Organic substance, incrustation scale, cause system salt rejection rate to decline, and water yield is reduced, and pressure reduction increase etc. is asked
Topic, is also formed so-called fouling membrane, and these pollutions can be caused by following reason：1st, the deposition of inorganic matters
(fouling), common contaminant is by Calcium Carbonate, calcium sulfate, calcium phosphate etc.；2nd, the absorption of organic molecule (has
Machine pollutes)；3rd, the deposition (colloid pollution) of particulate matter, common pollutant have hydrated ferric oxide., aluminium hydroxide,
Silicon dioxide colloid etc.；4th, metal-oxide deposition, common pollutant are by ferrum oxide；5th, microorganism
Adhesion and growth (biological pollution), common pollutant have antibacterial, algae class.
The cleaning of reverse osmosis membrane mainly includes physical cleaning method, chemical cleaning method and biological ablution.For pollution
Serious membrane module is only difficult its thorough removing using the method for physical cleaning, so will also be with reference to chemical clear
The method washed removes pollutant.Chemical cleaning is that chemical agent is configured to by a certain percentage aqueous solution as clear
Lotion, is exchanged, is chelated, breakdown of emulsion etc. by chemical agent with the pollutant on fenestra road Zhong Huomo surfaces
Chemical reaction, so as to by the cleaning method of pollutant removing.Due to the effect rate of exchange of Chemical cleaning it is good, so
More commonly use.Conventional chemical agent has acid, alkali, chelating agent, surfactant and enzyme etc..Acidity cleaning
Can be used to remove the inorganic salt crust deposited on reverse osmosis membrane, alkalescence cleaning can be used for organics removal and colloid is dirty
Dye thing.
The content of the invention
The technical problem to be solved is to invent a kind of dyeing waste water Treated sewage reusing counter-infiltration system combination
Cleaning method, the cleaning that counter-infiltration system can be carried out rapidly and efficiently according to various field conditions.
To solve the above problems, the invention provides dyeing waste water Treated sewage reusing counter-infiltration system combined type cleaning side
Method, comprising reverse osmosis membrane is cleaned with cleanout fluid, described cleanout fluid includes non oxidizing bactericide, Organic substance
Pollution three kinds of abluent aqueous solutions of abluent and scale remover.
This kind of dyeing waste water Treated sewage reusing counter-infiltration system combined type cleaning method, including using counter-infiltration system cleanout fluid
Cleaning reverse osmosis membrane；Described dyeing waste water Treated sewage reusing counter-infiltration system includes one section, two-stage nitration reverse osmosiss system
System；It is characterized in that：The combined type cleaning method comprises the steps：
Step one, with reverse osmosiss product water rinse 10～15min of counter-infiltration system；
Step 2, by non oxidizing bactericide add one section, two-stage nitration counter-infiltration system, 1～2h of recycling sterilizing；
Step 3, with non oxidizing bactericide soak one section, two-stage nitration 3～6h of counter-infiltration system, immersion terminate after
Emptying non oxidizing bactericide, with reverse osmosiss product water one section, two-stage nitration 10～40min of counter-infiltration system are rinsed；
Step 4, by Organic Pollution abluent add one section, two-stage nitration counter-infiltration system, 1～2h of wash cycles；
Step 5, one section of two-stage nitration 3～6h of counter-infiltration system is soaked with Organic Pollution abluent, or often soaked
20～30min, 10～30min of wash cycles, immersion is 1～6h, immersion or circulation with circulation time summation
Emptying Organic Pollution abluent after end, with reverse osmosiss product water rinse one section, two-stage nitration counter-infiltration system 10～
40min；
Step 6, by scale remover add one section, two-stage nitration counter-infiltration system, circulate 1～2h of scale removal；
Step 7, one section of two-stage nitration 3～6h of counter-infiltration system is soaked with scale remover, or often soaks 20-30min,
Circulation flushing 10-30min, immersion is 1～6h with circulation time summation, and immersion or loop ends heel row remove scale removal
Agent, with reverse osmosiss product water one section, two-stage nitration 10～40min of counter-infiltration system are rinsed.
Preferably, non-oxidizable in described dyeing waste water Treated sewage reusing counter-infiltration system combined type cleaning method kills
Microbial inoculum is isothiazolone；Described Organic Pollution abluent includes surfactant, chelating agen, soda acid
And small molecule salt；Described scale remover includes citric acid, sodium carbonate and hydrochloric acid.
Preferably, non-oxidizable in described dyeing waste water Treated sewage reusing counter-infiltration system combined type cleaning method kills
The content of microbial inoculum is 0.1%.
Preferably, the Organic Pollution in described dyeing waste water Treated sewage reusing counter-infiltration system combined type cleaning method
Surfactant sodium dodecyl base benzene sulfonic acid sodium salt, fatty alcohol-polyoxyethylene ether and lauryl sulphate acid in abluent
One or more in sodium, the content of the surfactant in described Organic Pollution abluent is 8～
10%.
Preferably, the Organic Pollution in described dyeing waste water Treated sewage reusing counter-infiltration system combined type cleaning method
Chelating agen in abluent be lemon acid, tetrasodium ethylenediamine tetraacetate, 1-hydroxy ethylidene-1,1-diphosphonic acid, sodium polyacrylate,
One or more in sodium tripolyphosphate；Chelator preferably 1 in described Organic Pollution abluent～
2%..
Preferably, the Organic Pollution in described dyeing waste water Treated sewage reusing counter-infiltration system combined type cleaning method
Soda acid in abluent is hydrochloric acid or sodium hydroxide.
Preferably, the Organic Pollution in described dyeing waste water Treated sewage reusing counter-infiltration system combined type cleaning method
Small molecule salt in abluent is one or two of sodium carbonate and sodium phosphate, and content is 1～2%.
Preferably, the Organic Pollution in described dyeing waste water Treated sewage reusing counter-infiltration system combined type cleaning method
PH value is adjusted to 11～12 by abluent acid or alkali, and described acid or alkali is hydrochloric acid, sodium hydroxide or ammonia.
Preferably, the scale remover in described dyeing waste water Treated sewage reusing counter-infiltration system combined type cleaning method is included
Citric acid, sodium carbonate and hydrochloric acid, wherein citric acid content are 1～2%.
Preferably, the scale remover acid in described dyeing waste water Treated sewage reusing counter-infiltration system combined type cleaning method
Or pH value is adjusted to 2～3 by alkali, described acid or alkali is hydrochloric acid or sodium carbonate.
Non oxidizing bactericide is isothiazolone in counter-infiltration system cleanout fluid of the present invention, and content is preferred
0.1～0.2%.
Organic Pollution abluent includes surfactant, chelating in counter-infiltration system cleanout fluid of the present invention
Agent, soda acid and small molecule salt.
Surfactant is selected from detergent alkylate in counter-infiltration system Organic Pollution abluent of the present invention
At least one of sodium sulfonate, fatty alcohol-polyoxyethylene ether and sodium lauryl sulphate, content preferably 8～10%.
In counter-infiltration system Organic Pollution abluent of the present invention chelating agen be selected from lemon acid,
EDTA-Na4, HEDP (1-hydroxy ethylidene-1,1-diphosphonic acid), PAAS (sodium polyacrylate), sodium tripolyphosphate
At least one, content preferably 1～2%.
Counter-infiltration system Organic Pollution abluent small molecular saline taste of the present invention is selected from sodium carbonate and phosphorus
At least one of sour sodium, content preferably 1～2%.
Counter-infiltration system Organic Pollution abluent pH value of the present invention is 11～12, can use hydrochloric acid, hydrogen
Sodium oxide or ammonia are adjusted.
Scale remover includes citric acid, sodium carbonate and hydrochloric acid in counter-infiltration system cleanout fluid of the present invention, wherein
Citric acid content preferably 1～2%.
Scale remover pH value is 2～3 in counter-infiltration system cleanout fluid of the present invention, and hydrochloric acid and sodium carbonate are adjusted.
When cleaning reverse osmosis membrane with the cleanout fluid of the present invention, rinse liquid temperature is controlled for 10～50 DEG C.
The present invention can also wash reverse osmosis membrane with water before and after reverse osmosis membrane is cleaned with cleanout fluid, preferably use water
Or reverse osmosiss product water.Described counter-infiltration system cleaning method preferably comprises washing～cleanout fluid and washes～wash
Three units.Specifically cleaning step is once：
(1) counter-infiltration system is rinsed with reverse osmosiss product water, preferably rinses 10～15min；
(2) by non oxidizing bactericide add one section, two-stage nitration counter-infiltration system, recycling sterilizing, preferentially sterilization 1～
2h；
(3) one section, two-stage nitration counter-infiltration system are soaked with non oxidizing bactericide, preferably soaks 3～6h, one section anti-
Osmosis system 5～6h of preferred immersion, immersion terminates heel row and removes antibacterial, with reverse osmosiss product water rinse one section,
Two-stage nitration counter-infiltration system, preferably rinses 10～40min；
(4) by Organic Pollution abluent addition one section, two-stage nitration counter-infiltration system, wash cycles, preferably cleaning 1～
2h；
(5) one section of two-stage nitration counter-infiltration system is soaked with Organic Pollution abluent, preferably soaks 3～6h or often soak
20～30min of bubble, 10～30min of circulation, immersion is 1～6h, immersion or circulation knot with circulation time summation
Beam heel row remove cleanout fluid, with reverse osmosiss product water rinse one section, two-stage nitration counter-infiltration system, preferably rinse 10～
40min；
(6) scale remover is added into one section, two-stage nitration counter-infiltration system, circulates scale removal, preferred 1～2h of scale removal；
(7) one section of two-stage nitration counter-infiltration system is soaked with scale remover, preferably 3～6h of immersion or often immersion 20～
30min, circulates 10～30min, and immersion is 1～6h, immersion or loop ends heel row with circulation time summation
Except scale remover, one section, two-stage nitration counter-infiltration system are rinsed with reverse osmosiss product water, preferably rinse 10～40min；
Clean reverse osmosis membrane with the cleanout fluid of the present invention, can emphasis solve the microorganism of slow generation on reverse osmosis membrane,
Organic substance and incrustation scale class pollute, and can effectively reduce the salinity that counter-infiltration system produces water, improve reverse osmosiss system
System aquifer yield simultaneously reduces the pressure differential before and after reverse osmosis membrane.
Specific embodiment
With reference to embodiment, the present invention is described in further detail, and following examples are the solutions to the present invention
Release and the invention is not limited in following examples.
Embodiment 1
(1) one section of regulation, two-stage nitration counter-infiltration system film pressure are 0.4MPa, adjust one section, two-stage nitration reverse osmosiss
System concentrated water aquifer yield is 160L/h, and pure water yield 40L/h rinses counter-infiltration system with reverse osmosiss product water
12min；
(2) by non oxidizing bactericide isothiazolone that content mass percent is 0.1% add one section, two
To original solution is displaced, ON cycle operation 1.5h soaks 4h to section counter-infiltration system；
(3) antibacterial is excluded, with reverse osmosiss product water counter-infiltration system 15min is rinsed；
(4) the Organic Pollution abluent comprising surfactant, chelating agen, soda acid and small molecule salt is added
Enter one section, two-stage nitration counter-infiltration system to original solution is displaced, ON cycle operation 1.5h, soak 4h；
Wherein surfactant qualities content is 9%, including dodecylbenzene sodium sulfonate and fatty alcohol-polyoxyethylene ether,
Chelating agen mass content includes lemon acid and tetrasodium ethylenediamine tetraacetate for 1.6%, and soda acid is hydrochloric acid；Small molecule salt
For the sodium carbonate that mass fraction is 1.5%, make after Organic Pollution abluent hydrochloric acid is adjusted to into 11 by pH value
With；
(5) abluent is excluded, with reverse osmosiss product water counter-infiltration system 15min is rinsed；
(6) by one section of the addition of the scale remover comprising citric acid, sodium carbonate and hydrochloric acid, two-stage nitration counter-infiltration system extremely
Till displacing original solution, ON cycle operation 1.5h soaks 4h；Will with hydrochloric acid by described scale remover
PH value is used after being adjusted to 2；
(7) scale remover is excluded, with reverse osmosiss product water counter-infiltration system 15min is rinsed.
Embodiment 2
(1) one section of regulation, two-stage nitration counter-infiltration system film pressure are 0.4MPa, adjust one section, two-stage nitration reverse osmosiss
System concentrated water aquifer yield is 160L/h, and pure water yield 40L/h rinses counter-infiltration system with reverse osmosiss product water
12min；
(2) by non oxidizing bactericide isothiazolone that content mass percent is 0.1% add one section, two
To original solution is displaced, ON cycle operation 1.5h soaks 4h to section counter-infiltration system；
(3) antibacterial is excluded, with reverse osmosiss product water counter-infiltration system 15min is rinsed；
(4) the Organic Pollution abluent comprising surfactant, chelating agen, soda acid and small molecule salt is added
Enter one section, two-stage nitration counter-infiltration system to original solution is displaced, ON cycle operation 2h, soak 3h；
Surfactant qualities content in Organic Pollution abluent be 10%, including dodecylbenzene sodium sulfonate with
Fatty alcohol-polyoxyethylene ether, chelating agen mass content includes lemon acid and tetrasodium ethylenediamine tetraacetate, acid for 1.8%
Alkali is hydrochloric acid；Small molecule salt is the sodium carbonate that mass fraction is 1.5%, by Organic Pollution abluent hydrochloric acid
Use after pH value is adjusted to into 12；
(5) abluent is excluded, with reverse osmosiss product water counter-infiltration system 15min is rinsed；
(6) by one section of the addition of the scale remover comprising citric acid, sodium carbonate and hydrochloric acid, two-stage nitration counter-infiltration system extremely
Till displacing original solution, ON cycle operation 1.5h soaks 4h；Will with hydrochloric acid by described scale remover
PH value is used after being adjusted to 2；
(7) scale remover is excluded, with reverse osmosiss product water counter-infiltration system 20min is rinsed.
Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, its raw material, course of reaction
Named title etc. can be with difference.The equivalent or simple change that all principles according to described in inventional idea of the present invention are done,
It is included in the protection domain of patent of the present invention.Those skilled in the art can be to institute
The specific embodiment of description is made various modifications or supplements or substituted using similar mode, as long as not inclined
From the present invention structure or surmount scope defined in the claims, all should belong to the present invention protection
Scope.
Claims (10)
1. a kind of dyeing waste water Treated sewage reusing counter-infiltration system combined type cleaning method, including clear with counter-infiltration system
Washing liquid cleans reverse osmosis membrane；Described dyeing waste water Treated sewage reusing counter-infiltration system includes one section, two-stage nitration reverse osmosis
Permeable system；It is characterized in that：The combined type cleaning method comprises the steps：
Step one, with reverse osmosiss product water rinse 10～15min of counter-infiltration system；
Step 2, by non oxidizing bactericide add one section, two-stage nitration counter-infiltration system, 1～2h of recycling sterilizing；
Step 3, with non oxidizing bactericide soak one section, two-stage nitration 3～6h of counter-infiltration system, immersion terminate after
Emptying non oxidizing bactericide, with reverse osmosiss product water one section, two-stage nitration 10～40min of counter-infiltration system are rinsed；
Step 4, by Organic Pollution abluent add one section, two-stage nitration counter-infiltration system, 1～2h of wash cycles；
Step 5, one section of two-stage nitration 3～6h of counter-infiltration system is soaked with Organic Pollution abluent, or often soaked
20～30min, 10～30min of wash cycles, immersion is 1～6h, immersion or circulation with circulation time summation
Emptying Organic Pollution abluent after end, with reverse osmosiss product water rinse one section, two-stage nitration counter-infiltration system 10～
40min；
Step 6, by scale remover add one section, two-stage nitration counter-infiltration system, circulate 1～2h of scale removal；
Step 7, one section of two-stage nitration 3～6h of counter-infiltration system is soaked with scale remover, or often soaks 20-30min,
Circulation flushing 10-30min, immersion is 1～6h with circulation time summation, and immersion or loop ends heel row remove scale removal
Agent, with reverse osmosiss product water one section, two-stage nitration 10～40min of counter-infiltration system are rinsed.
2. dyeing waste water Treated sewage reusing counter-infiltration system combined type cleaning method according to claim 1, its
It is characterised by：Described non oxidizing bactericide is isothiazolone；Described Organic Pollution abluent bag
Containing surfactant, chelating agen, soda acid and small molecule salt；Described scale remover includes citric acid, sodium carbonate
And hydrochloric acid.
3. dyeing waste water Treated sewage reusing counter-infiltration system combined type cleaning method according to claim 2, its
It is characterised by：The content mass percent of described non oxidizing bactericide is 0.1%.
4. dyeing waste water Treated sewage reusing counter-infiltration system combined type cleaning method according to claim 2, its
It is characterised by：Surfactant sodium dodecyl base benzene sulfonic acid sodium salt in described Organic Pollution abluent, fat
One or more in polyoxyethylenated alcohol and sodium lauryl sulphate, in described Organic Pollution abluent
Surfactant content mass percent be 8～10%.
5. dyeing waste water Treated sewage reusing counter-infiltration system combined type cleaning method according to claim 2, its
It is characterised by：Chelating agen in described Organic Pollution abluent be lemon acid, tetrasodium ethylenediamine tetraacetate,
Hydroxy ethylene diphosphonic acid, sodium polyacrylate, one or more in sodium tripolyphosphate；Described Organic substance
Chelator mass percent in pollution abluent is 1～2%.
6. dyeing waste water Treated sewage reusing counter-infiltration system combined type cleaning method according to claim 2, its
It is characterised by：Soda acid in described Organic Pollution abluent is hydrochloric acid or sodium hydroxide.
7. dyeing waste water Treated sewage reusing counter-infiltration system combined type cleaning method according to claim 2, its
It is characterised by：Small molecule salt in described Organic Pollution abluent is the one kind in sodium carbonate and sodium phosphate
Or two kinds, content mass percent is 1～2%.
8. dyeing waste water Treated sewage reusing counter-infiltration system combined type cleaning method according to claim 2, its
It is characterised by：PH value is adjusted to into 11～12 by described Organic Pollution abluent acid or alkali, it is described
Acid or alkali are hydrochloric acid, sodium hydroxide or ammonia.
9. dyeing waste water Treated sewage reusing counter-infiltration system combined type cleaning method according to claim 2, its
It is characterised by：Described scale remover includes citric acid, sodium carbonate and hydrochloric acid, and wherein citric acid content is 1～2%.
10. dyeing waste water Treated sewage reusing counter-infiltration system combined type cleaning method according to claim 9, its
It is characterised by：PH value is adjusted to into 2～3 by described scale remover acid or alkali, described acid or alkali is hydrochloric acid
Or sodium carbonate.
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| CN109966921A (en) * | 2019-04-26 | 2019-07-05 | 北京亦庄水务有限公司 | A kind of minimizing technology of counter-infiltration system pollutant |
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