CN111992040B - 一种聚电解质纳滤膜制备方法 - Google Patents
一种聚电解质纳滤膜制备方法 Download PDFInfo
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- CN111992040B CN111992040B CN202010945826.0A CN202010945826A CN111992040B CN 111992040 B CN111992040 B CN 111992040B CN 202010945826 A CN202010945826 A CN 202010945826A CN 111992040 B CN111992040 B CN 111992040B
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- polyelectrolyte
- aqueous solution
- nanofiltration membrane
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- 239000012528 membrane Substances 0.000 title claims abstract description 142
- 229920000867 polyelectrolyte Polymers 0.000 title claims abstract description 134
- 238000001728 nano-filtration Methods 0.000 title claims abstract description 99
- 238000002360 preparation method Methods 0.000 title claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 69
- 239000007864 aqueous solution Substances 0.000 claims abstract description 49
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 28
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 23
- 230000001680 brushing effect Effects 0.000 claims abstract description 20
- 229920002873 Polyethylenimine Polymers 0.000 claims abstract description 15
- 229920001467 poly(styrenesulfonates) Polymers 0.000 claims abstract description 15
- 229940006186 sodium polystyrene sulfonate Drugs 0.000 claims abstract description 15
- 238000005406 washing Methods 0.000 claims abstract description 13
- 229920002518 Polyallylamine hydrochloride Polymers 0.000 claims abstract description 7
- 229920002125 Sokalan® Polymers 0.000 claims abstract description 6
- 229920000371 poly(diallyldimethylammonium chloride) polymer Polymers 0.000 claims abstract description 6
- 239000004584 polyacrylic acid Substances 0.000 claims abstract description 6
- 238000003860 storage Methods 0.000 claims abstract description 5
- 238000002791 soaking Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 29
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 claims description 13
- UMHJEEQLYBKSAN-UHFFFAOYSA-N Adipaldehyde Chemical compound O=CCCCCC=O UMHJEEQLYBKSAN-UHFFFAOYSA-N 0.000 claims description 6
- PCSMJKASWLYICJ-UHFFFAOYSA-N Succinic aldehyde Chemical compound O=CCCC=O PCSMJKASWLYICJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000004695 Polyether sulfone Substances 0.000 claims description 5
- 229920002492 poly(sulfone) Polymers 0.000 claims description 5
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 5
- 229920006393 polyether sulfone Polymers 0.000 claims description 5
- 238000001338 self-assembly Methods 0.000 abstract description 12
- 239000000758 substrate Substances 0.000 abstract description 12
- 239000002994 raw material Substances 0.000 abstract description 8
- 239000011248 coating agent Substances 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 5
- 230000004907 flux Effects 0.000 description 36
- 239000010410 layer Substances 0.000 description 28
- 238000010612 desalination reaction Methods 0.000 description 25
- 238000000926 separation method Methods 0.000 description 17
- 230000000694 effects Effects 0.000 description 16
- 239000000243 solution Substances 0.000 description 16
- 239000008367 deionised water Substances 0.000 description 11
- 229910021641 deionized water Inorganic materials 0.000 description 11
- 150000003839 salts Chemical class 0.000 description 11
- 230000014759 maintenance of location Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 230000003068 static effect Effects 0.000 description 5
- 239000004971 Cross linker Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000012085 test solution Substances 0.000 description 4
- ZNZYKNKBJPZETN-WELNAUFTSA-N Dialdehyde 11678 Chemical compound N1C2=CC=CC=C2C2=C1[C@H](C[C@H](/C(=C/O)C(=O)OC)[C@@H](C=C)C=O)NCC2 ZNZYKNKBJPZETN-WELNAUFTSA-N 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- WSMYVTOQOOLQHP-UHFFFAOYSA-N Malondialdehyde Chemical compound O=CCC=O WSMYVTOQOOLQHP-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229940118019 malondialdehyde Drugs 0.000 description 2
- BHTJEPVNHUUIPV-UHFFFAOYSA-N pentanedial;hydrate Chemical compound O.O=CCCCC=O BHTJEPVNHUUIPV-UHFFFAOYSA-N 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009295 crossflow filtration Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000008233 hard water Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229960002635 potassium citrate Drugs 0.000 description 1
- 239000001508 potassium citrate Substances 0.000 description 1
- QEEAPRPFLLJWCF-UHFFFAOYSA-K potassium citrate (anhydrous) Chemical compound [K+].[K+].[K+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O QEEAPRPFLLJWCF-UHFFFAOYSA-K 0.000 description 1
- 235000011082 potassium citrates Nutrition 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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
- B01D61/027—Nanofiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0002—Organic membrane manufacture
-
- 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
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Nanotechnology (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
实施例 | 超滤膜种类 | 脱盐率/% | 水通量/L/m<sup>2</sup>h |
1 | 聚砜超滤膜 | 95 | 57 |
5 | 聚醚砜超滤膜 | 96 | 59 |
6 | 聚丙烯腈超滤膜 | 96 | 58 |
实施例 | 聚苯乙烯磺酸钠水溶液浓度/g/L | 水通量/L/m<sup>2</sup>h | 脱盐率/% |
1 | 1 | 95 | 57 |
11 | 0.5 | 79 | 68 |
12 | 3 | 97 | 49 |
13 | 5 | 96 | 52 |
14 | 6 | 96 | 25 |
实施例 | 交联剂种类 | 脱盐率/% | 水通量/L/m<sup>2</sup>h |
1 | 戊二醛 | 95 | 57 |
15 | 丁二醛 | 98 | 59 |
16 | 已二醛 | 97 | 63 |
17 | 丙二醛 | 81 | 112 |
实施例 | 戊二醛水溶液浓度/mol/L | 脱盐率/% | 水通量/L/m<sup>2</sup>h |
1 | 0.1 | 95 | 57 |
18 | 0.03 | 69 | 70 |
19 | 0.05 | 95 | 68 |
20 | 0.3 | 98 | 53 |
21 | 0.5 | 96 | 19 |
实施例 | 保持时间/min | 脱盐率/% | 水通量/L/m<sup>2</sup>h |
1 | 5 | 95 | 57 |
22 | 2 | 73 | 69 |
23 | 10 | 95 | 59 |
24 | 20 | 98 | 55 |
25 | 30 | 94 | 33 |
实施例 | 放置时间/h | 脱盐率/% | 水通量/L/m<sup>2</sup>h |
1 | 6 | 95 | 57 |
30 | 3 | 72 | 65 |
31 | 9 | 97 | 58 |
32 | 12 | 97 | 52 |
33 | 24 | 90 | 21 |
Claims (6)
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CN111992040A CN111992040A (zh) | 2020-11-27 |
CN111992040B true CN111992040B (zh) | 2022-05-10 |
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Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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DE19909841A1 (de) * | 1999-03-06 | 2000-09-07 | Inst Polymerforschung Dresden | Mehrschichtmembranen und Verfahren zu ihrer Herstellung |
CN102580550B (zh) * | 2012-03-05 | 2014-04-09 | 中国海洋大学 | 一种聚电解质自组装复合纳滤膜的制备方法 |
CN103223302B (zh) * | 2013-05-21 | 2014-04-23 | 中国海洋大学 | 一种自组装共价交联纳滤膜的制备方法 |
CN106422811A (zh) * | 2015-08-11 | 2017-02-22 | 贵阳时代沃顿科技有限公司 | 一种新型聚电解质纳滤膜及其制备方法 |
CN105709616B (zh) * | 2016-03-09 | 2019-05-14 | 中国海洋大学 | 一种耐有机溶剂超滤膜的制备方法、所制备的膜及其应用 |
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Effective date of registration: 20240414 Address after: 230000 Woye Garden Commercial Building B-1017, 81 Ganquan Road, Shushan District, Hefei City, Anhui Province Patentee after: HEFEI JINGLONG ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Country or region after: China Address before: 253023 No. 566, West University Road, Decheng District, Shandong, Dezhou Patentee before: DEZHOU University Country or region before: China |
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