CN115105960B - 废旧反渗透膜元件的修复方法 - Google Patents
废旧反渗透膜元件的修复方法 Download PDFInfo
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- CN115105960B CN115105960B CN202110302656.9A CN202110302656A CN115105960B CN 115105960 B CN115105960 B CN 115105960B CN 202110302656 A CN202110302656 A CN 202110302656A CN 115105960 B CN115105960 B CN 115105960B
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- Prior art keywords
- reverse osmosis
- osmosis membrane
- soaking
- concentration
- persulfate
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- 239000012528 membrane Substances 0.000 title claims abstract description 121
- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 110
- 239000002699 waste material Substances 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 64
- 238000002791 soaking Methods 0.000 claims abstract description 54
- 239000000243 solution Substances 0.000 claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000011259 mixed solution Substances 0.000 claims abstract description 26
- 238000005406 washing Methods 0.000 claims abstract description 26
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 claims abstract description 20
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 18
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 18
- 239000010452 phosphate Substances 0.000 claims abstract description 18
- 150000001875 compounds Chemical class 0.000 claims abstract description 16
- 150000005846 sugar alcohols Polymers 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 33
- 239000002202 Polyethylene glycol Substances 0.000 claims description 30
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 30
- 229920001223 polyethylene glycol Polymers 0.000 claims description 30
- 238000004140 cleaning Methods 0.000 claims description 24
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 21
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 15
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 14
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 14
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 12
- -1 polyethylene Polymers 0.000 claims description 9
- 125000004122 cyclic group Chemical group 0.000 claims description 8
- 229920001451 polypropylene glycol Polymers 0.000 claims description 7
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 6
- 229910000402 monopotassium phosphate Inorganic materials 0.000 claims description 6
- 235000019796 monopotassium phosphate Nutrition 0.000 claims description 6
- 229910000403 monosodium phosphate Inorganic materials 0.000 claims description 6
- 235000019799 monosodium phosphate Nutrition 0.000 claims description 6
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 claims description 6
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 6
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 claims description 6
- 229920005862 polyol Polymers 0.000 claims description 5
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 4
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- 238000004132 cross linking Methods 0.000 claims description 3
- 229920000578 graft copolymer Polymers 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229920000223 polyglycerol Polymers 0.000 claims description 3
- HLWRUJAIJJEZDL-UHFFFAOYSA-M sodium;2-[2-[bis(carboxymethyl)amino]ethyl-(carboxymethyl)amino]acetate Chemical compound [Na+].OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC([O-])=O HLWRUJAIJJEZDL-UHFFFAOYSA-M 0.000 claims description 3
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 claims description 2
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 claims description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims 2
- 238000000926 separation method Methods 0.000 abstract description 12
- 230000004907 flux Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 239000000126 substance Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 238000011010 flushing procedure Methods 0.000 description 3
- 239000012466 permeate Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000012527 feed solution Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- HDMGAZBPFLDBCX-UHFFFAOYSA-M potassium;sulfooxy sulfate Chemical compound [K+].OS(=O)(=O)OOS([O-])(=O)=O HDMGAZBPFLDBCX-UHFFFAOYSA-M 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000005696 Diammonium phosphate Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical group [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 1
- 229910000388 diammonium phosphate Inorganic materials 0.000 description 1
- 235000019838 diammonium phosphate Nutrition 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000006012 monoammonium phosphate Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 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
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Nanotechnology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
实例编号 | R(NaCl)/% | F/L·m-2·h-1 |
实施例1 | 96.4 | 57.7 |
实施例2 | 98.5 | 41.3 |
实施例3 | 97.2 | 48.6 |
实施例4 | 95.9 | 40.8 |
实施例5 | 95.5 | 40.2 |
实施例6 | 94.8 | 41.3 |
实施例7 | 93.8 | 40.7 |
实施例8 | 95.9 | 41 |
实施例9 | 95.8 | 40.6 |
对比例1 | 92.2 | 76.3 |
对比例2 | 93.5 | 60.5 |
对比例3 | 93.4 | 59.5 |
废旧反渗透膜元件1 | 92.3 | 74.1 |
废旧反渗透膜元件2 | 91.3 | 84.1 |
Claims (29)
Priority Applications (1)
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CN202110302656.9A CN115105960B (zh) | 2021-03-22 | 2021-03-22 | 废旧反渗透膜元件的修复方法 |
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CN202110302656.9A CN115105960B (zh) | 2021-03-22 | 2021-03-22 | 废旧反渗透膜元件的修复方法 |
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Publication Number | Publication Date |
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CN115105960A CN115105960A (zh) | 2022-09-27 |
CN115105960B true CN115105960B (zh) | 2023-10-31 |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09512857A (ja) * | 1994-07-28 | 1997-12-22 | ミリポア コーポレイション | 多孔質複合膜と方法 |
WO1999023197A1 (en) * | 1997-10-31 | 1999-05-14 | The Procter & Gamble Company | Processes of soaking fabrics with a liquid aqueous persulfate salt-containing composition |
KR20080033279A (ko) * | 2005-06-20 | 2008-04-16 | 지멘스 워터 테크놀로지스 코포레이션 | 중합체 막의 가교 결합 처리 |
CN105214503A (zh) * | 2015-10-14 | 2016-01-06 | 江南大学 | 化学清洗后修复膜亲水性的方法 |
CN107551823A (zh) * | 2017-09-13 | 2018-01-09 | 宁波日新恒力科技有限公司 | 一种反渗透膜的制备方法 |
CN108043248A (zh) * | 2017-12-06 | 2018-05-18 | 南京工业大学 | 一种pva-pvdf中空纤维超滤膜、制备方法、制备装置和应用 |
CN111167322A (zh) * | 2020-01-03 | 2020-05-19 | 安徽智泓净化科技股份有限公司 | 一种抗污反渗透膜 |
-
2021
- 2021-03-22 CN CN202110302656.9A patent/CN115105960B/zh active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09512857A (ja) * | 1994-07-28 | 1997-12-22 | ミリポア コーポレイション | 多孔質複合膜と方法 |
WO1999023197A1 (en) * | 1997-10-31 | 1999-05-14 | The Procter & Gamble Company | Processes of soaking fabrics with a liquid aqueous persulfate salt-containing composition |
KR20080033279A (ko) * | 2005-06-20 | 2008-04-16 | 지멘스 워터 테크놀로지스 코포레이션 | 중합체 막의 가교 결합 처리 |
CN105214503A (zh) * | 2015-10-14 | 2016-01-06 | 江南大学 | 化学清洗后修复膜亲水性的方法 |
CN107551823A (zh) * | 2017-09-13 | 2018-01-09 | 宁波日新恒力科技有限公司 | 一种反渗透膜的制备方法 |
CN108043248A (zh) * | 2017-12-06 | 2018-05-18 | 南京工业大学 | 一种pva-pvdf中空纤维超滤膜、制备方法、制备装置和应用 |
CN111167322A (zh) * | 2020-01-03 | 2020-05-19 | 安徽智泓净化科技股份有限公司 | 一种抗污反渗透膜 |
Non-Patent Citations (4)
Title |
---|
Meihong Liu et al..Improving fouling resistance and chlorine stability of aromatic polyamide thin-film composite RO membrane by surface grafting of polyvinyl alcohol (PVA).《Desalination》.2015,第367卷第11–20页. * |
Suping Yua et al. .Poly(vinyl pyrrolidone) modified poly(vinylidene fluoride) ultrafiltration membrane via a two-step surface grafting for radioactive wastewater treatment.《Separation and Purification Technology》.2017,第194卷第404-409页. * |
Tilak Gullinkala et al..Study of the Hydrophilic Enhanced Ultrafiltration Membrane.《Environmental Progress》.2008,第27卷第210-217页. * |
废弃反渗透膜元件的再生方法研究现状;罗美莲;;山东工业技术(第08期);第1-5页 * |
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CN115105960A (zh) | 2022-09-27 |
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