JP2008036574A5 - - Google Patents
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- JP2008036574A5 JP2008036574A5 JP2006216910A JP2006216910A JP2008036574A5 JP 2008036574 A5 JP2008036574 A5 JP 2008036574A5 JP 2006216910 A JP2006216910 A JP 2006216910A JP 2006216910 A JP2006216910 A JP 2006216910A JP 2008036574 A5 JP2008036574 A5 JP 2008036574A5
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- Prior art keywords
- membrane
- water treatment
- less
- filtration
- treatment method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000012528 membrane Substances 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 238000000926 separation method Methods 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 239000002033 PVDF binder Substances 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 claims description 2
- 239000012510 hollow fiber Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000005374 membrane filtration Methods 0.000 claims description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- 238000011084 recovery Methods 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000002904 solvent Substances 0.000 description 8
- 239000012046 mixed solvent Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- GRYSXUXXBDSYRT-WOUKDFQISA-N (2R,3R,4R,5R)-2-(hydroxymethyl)-4-methoxy-5-[6-(methylamino)purin-9-yl]oxolan-3-ol Chemical compound C1=NC=2C(NC)=NC=NC=2N1[C@@H]1O[C@H](CO)[C@@H](O)[C@H]1OC GRYSXUXXBDSYRT-WOUKDFQISA-N 0.000 description 2
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N Carbon tetrachloride Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- MTHSVFCYNBDYFN-UHFFFAOYSA-N Diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 2
- HJOVHMDZYOCNQW-UHFFFAOYSA-N Isophorone Chemical compound CC1=CC(=O)CC(C)(C)C1 HJOVHMDZYOCNQW-UHFFFAOYSA-N 0.000 description 2
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- -1 etc. Chemical class 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- 150000002576 ketones Chemical class 0.000 description 2
- OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 2
- ARXJGSRGQADJSQ-UHFFFAOYSA-N propylene glycol methyl ether Substances COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 2
- AVQQQNCBBIEMEU-UHFFFAOYSA-N 1,1,3,3-tetramethylurea Chemical compound CN(C)C(=O)N(C)C AVQQQNCBBIEMEU-UHFFFAOYSA-N 0.000 description 1
- RFFLAFLAYFXFSW-UHFFFAOYSA-N 1,2-Dichlorobenzene Chemical compound ClC1=CC=CC=C1Cl RFFLAFLAYFXFSW-UHFFFAOYSA-N 0.000 description 1
- FFWSICBKRCICMR-UHFFFAOYSA-N 5-Methyl-2-hexanone Chemical compound CC(C)CCC(C)=O FFWSICBKRCICMR-UHFFFAOYSA-N 0.000 description 1
- JHIVVAPYMSGYDF-UHFFFAOYSA-N Cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N DMA Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- SWXVUIWOUIDPGS-UHFFFAOYSA-N Diacetone alcohol Chemical compound CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 description 1
- NIQCNGHVCWTJSM-UHFFFAOYSA-N Dimethyl phthalate Chemical compound COC(=O)C1=CC=CC=C1C(=O)OC NIQCNGHVCWTJSM-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N Propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- URAYPUMNDPQOKB-UHFFFAOYSA-N Triacetin Chemical compound CC(=O)OCC(OC(C)=O)COC(C)=O URAYPUMNDPQOKB-UHFFFAOYSA-N 0.000 description 1
- 229960002622 Triacetin Drugs 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N Triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- WVLBCYQITXONBZ-UHFFFAOYSA-N Trimethyl phosphate Chemical compound COP(=O)(OC)OC WVLBCYQITXONBZ-UHFFFAOYSA-N 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- PUPZLCDOIYMWBV-UHFFFAOYSA-N butylene glycol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L cacl2 Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 1
- 229960001826 dimethylphthalate Drugs 0.000 description 1
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Substances OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 239000004811 fluoropolymer Substances 0.000 description 1
- 235000013773 glyceryl triacetate Nutrition 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 239000008079 hexane Substances 0.000 description 1
- ACCCMOQWYVYDOT-UHFFFAOYSA-N hexane-1,1-diol Chemical compound CCCCCC(O)O ACCCMOQWYVYDOT-UHFFFAOYSA-N 0.000 description 1
- 239000004021 humic acid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N n-methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- 150000005677 organic carbonates Chemical class 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- YEJRWHAVMIAJKC-UHFFFAOYSA-N γ-lactone 4-hydroxy-butyric acid Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 1
Description
すなわち本発明は、
（１）ポリフッ化ビニリデン系樹脂からなる分離膜をろ過膜として用いてなる水処理用膜モジュールにおいて、分離膜が、セルロースエステルを含有してなる三次元網目構造と球状構造の両方を有し、かつ、ろ過抵抗上昇度Ａが２×１０１２／ｍ２以上、逆洗回復性が５０％以上、ろ過抵抗上昇度Ｂが２×１０１２／ｍ２以下、かつ、初期ろ過抵抗が１×１０１２／ｍ以下の特性を有する膜である膜モジュール。
（２）上記（１）記載の膜モジュールにおいて、使用される分離膜の孔径が０．１μｍ以下である膜モジュール。
（３）上記（１）又は（２）記載の膜モジュールにおいて、使用される分離膜の開孔率が２０％未満である膜モジュール。
（４）上記（３）に記載の膜モジュールを具備する膜ろ過装置を用い、物理洗浄を定期的に行いながら水処理を行ない透過水を製造する水処理方法。
（５）上記（４）に記載の水処理方法において、物理洗浄に逆流洗浄である水処理方法。
（６）上記（４）に記載の水処理方法において、物理洗浄を行う間隔が１０分毎以上６０分毎以下である水処理方法。
（７）上記（５）に記載の水処理方法において、使用される分離膜が中空糸膜である水処理方法。
からなるものである。
That is, the present invention
(1) In a membrane module for water treatment using a separation membrane made of polyvinylidene fluoride resin as a filtration membrane, the separation membrane has both a three-dimensional network structure containing a cellulose ester and a spherical structure, In addition, the filtration resistance increase A is 2 × 10 12 / m 2 or more, the backwash recovery is 50% or more, the filtration resistance increase B is 2 × 10 12 / m 2 or less, and the initial filtration resistance is 1 × 10. A membrane module which is a membrane having a characteristic of 12 / m or less.
(2) The membrane module according to (1), wherein the pore size of the separation membrane used is 0.1 μm or less.
(3) The membrane module according to the above (1) or (2), wherein the separation membrane used has a porosity of less than 20%.
(4) A water treatment method for producing permeated water by using a membrane filtration apparatus comprising the membrane module according to (3) above and performing water treatment while periodically performing physical cleaning.
(5) The water treatment method according to (4), wherein the physical washing is back-flow washing.
(6) The water treatment method according to (4), wherein the physical cleaning interval is 10 minutes or more and 60 minutes or less.
(7) The water treatment method according to (5), wherein the separation membrane used is a hollow fiber membrane.
It consists of
フッ素樹脂系高分子の場合の貧溶媒としては、シクロヘキサノン、イソホロン、γ−ブチロラクトン、メチルイソアミルケトン、フタル酸ジメチル、プロピレングリコールメチルエーテル、プロピレンカーボネート、ジアセトンアルコール、グリセロールトリアセテート等の中鎖長のアルキルケトン、エステル、グリコールエステルおよび有機カーボネート等およびそれらの混合溶媒が挙げられる。非溶媒と貧溶媒の混合溶媒であっても、上記貧溶媒の定義を満足するものは、貧溶媒として扱う。また、良溶媒としては、Ｎ−メチル−２−ピロリドン、ジメチルスルホキシド、ジメチルアセトアミド、ジメチルホルムアミド、メチルエチルケトン、アセトン、テトラヒドロフラン、テトラメチル尿素、リン酸トリメチル等の低級アルキルケトン、エステル、アミド等およびそれらの混合溶媒が挙げられる。さらに、非溶媒としては、水、ヘキサン、ペンタン、ベンゼン、トルエン、メタノール、エタノール、四塩化炭素、ｏ−ジクロルベンゼン、トリクロルエチレン、エチレングリコール、ジエチレングリコール、トリエチレングリコール、プロピレングリコール、ブチレングリコール、ペンタンジオール、ヘキサンジオール、低分子量のポリエチレングリコール等の脂肪族炭化水素、芳香族炭化水素、脂肪族多価アルコール、芳香族多価アルコール、塩素化炭化水素、またはその他の塩素化有機液体およびそれらの混合溶媒が挙げられる。
Examples of poor solvents for fluoropolymers include cyclohexanone, isophorone, γ-butyrolactone, methyl isoamyl ketone, dimethyl phthalate, propylene glycol methyl ether, propylene carbonate, diacetone alcohol, and glycerol triacetate. Examples include ketones, esters, glycol esters and organic carbonates, and mixed solvents thereof. Even if it is a mixed solvent of a non-solvent and a poor solvent, what satisfies the definition of the poor solvent is treated as a poor solvent. As the good solvent, N- methyl-2-pyrrolidone, dimethyl sulfoxide, dimethylacetamide, dimethylformamide, methyl ethyl ketone, acetone, tetrahydrofuran, tetramethylurea, lower alkyl ketones trimethyl phosphate, etc., esters and amides and their The mixed solvent is mentioned. Further, non-solvents include water, hexane, pentane, benzene, toluene, methanol, ethanol, carbon tetrachloride, o-dichlorobenzene, trichloroethylene, ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, butylene glycol, pentane. Aliphatic hydrocarbons such as diol, hexanediol, low molecular weight polyethylene glycol, aromatic hydrocarbons, aliphatic polyhydric alcohols, aromatic polyhydric alcohols, chlorinated hydrocarbons, or other chlorinated organic liquids and mixtures thereof A solvent is mentioned.
圧力計を設置した１０Ｌのステンレス製加圧タンクＡＤＶＡＮＴＥＣ ＰＲＥＳＳＵＲＥ ＶＥＳＳＥＬ ＤＶ−１０に原水を入れ、同様に圧力計を設置した４０Ｌのステンレス製加圧タンクＡＤＶＡＮＴＥＣ ＰＲＥＳＳＵＲＥ ＶＥＳＳＥＬ ＤＶ−４０に和光純薬製蒸留水を入れた。それぞれのタンクには水の流出口に２方コックを接続した。原水には、フミン酸（和光純薬製）３０ｍｇと塩化カルシウム（ナカライテスク製 一級）２５０ｍｇを和光純薬蒸留水１０Lに溶解させたものを用いた。
Raw water is put into a 10L stainless steel pressurized tank ADVANTEC PRESURE VES SEL DV-10 with a pressure gauge installed, and a 40L stainless steel pressurized tank ADVANTEC PRESSURE VES SEL DV-40 with a pressure gauge installed is made by Wako Pure Chemical Industries, Ltd. Distilled water was added. Each tank was connected to a two-way cock at the water outlet. As raw water, 30 mg of humic acid (manufactured by Wako Pure Chemical Industries) and 250 mg of calcium chloride (manufactured by Nacalai Tesque) were dissolved in 10 L of Wako Pure Chemical distilled water.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006216910A JP2008036574A (en) | 2006-08-09 | 2006-08-09 | Membrane module and water-treating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006216910A JP2008036574A (en) | 2006-08-09 | 2006-08-09 | Membrane module and water-treating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2008036574A JP2008036574A (en) | 2008-02-21 |
| JP2008036574A5 true JP2008036574A5 (en) | 2009-11-26 |
Family
ID=39172193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006216910A Pending JP2008036574A (en) | 2006-08-09 | 2006-08-09 | Membrane module and water-treating method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2008036574A (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0278425A (en) * | 1987-06-26 | 1990-03-19 | Rhone Poulenc Rech | Hydrophilic and dryable semipermeable membrane based on polyvinylidene fluoride |
| JP3093811B2 (en) * | 1991-04-08 | 2000-10-03 | 旭化成工業株式会社 | Polyvinylidene fluoride resin film and method for producing the same |
| EP1520874B1 (en) * | 2002-06-14 | 2011-12-28 | Toray Industries, Inc. | Porous membrane and method of manufacturing the porous membrane |
-
2006
- 2006-08-09 JP JP2006216910A patent/JP2008036574A/en active Pending
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