JP5493123B2 - 微生物固定化用担体 - Google Patents
微生物固定化用担体 Download PDFInfo
- Publication number
- JP5493123B2 JP5493123B2 JP2009244802A JP2009244802A JP5493123B2 JP 5493123 B2 JP5493123 B2 JP 5493123B2 JP 2009244802 A JP2009244802 A JP 2009244802A JP 2009244802 A JP2009244802 A JP 2009244802A JP 5493123 B2 JP5493123 B2 JP 5493123B2
- Authority
- JP
- Japan
- Prior art keywords
- carrier
- cyclodextrin
- unsaturated group
- diisocyanate
- urethane resin
- 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.)
- Expired - Fee Related
Links
- 244000005700 microbiome Species 0.000 title claims description 24
- 230000003100 immobilizing effect Effects 0.000 title claims description 12
- 229920000858 Cyclodextrin Polymers 0.000 claims description 56
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- 229920000642 polymer Polymers 0.000 claims description 36
- 150000001875 compounds Chemical class 0.000 claims description 33
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 25
- 239000007788 liquid Substances 0.000 claims description 21
- 239000003505 polymerization initiator Substances 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 17
- 239000000843 powder Substances 0.000 claims description 17
- 239000005056 polyisocyanate Substances 0.000 claims description 15
- 229920001228 polyisocyanate Polymers 0.000 claims description 15
- 229920001282 polysaccharide Polymers 0.000 claims description 13
- 239000005017 polysaccharide Substances 0.000 claims description 13
- 239000012736 aqueous medium Substances 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 12
- 229910021645 metal ion Inorganic materials 0.000 claims description 11
- 238000012719 thermal polymerization Methods 0.000 claims description 10
- 238000004065 wastewater treatment Methods 0.000 claims description 9
- 239000003999 initiator Substances 0.000 claims description 7
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 239000007800 oxidant agent Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 4
- 239000007795 chemical reaction product Substances 0.000 claims description 3
- 238000001879 gelation Methods 0.000 claims description 2
- 150000004676 glycans Chemical class 0.000 claims 1
- 239000002245 particle Substances 0.000 description 32
- -1 Polytetramethylene Polymers 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 14
- 238000006243 chemical reaction Methods 0.000 description 13
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 13
- 230000005484 gravity Effects 0.000 description 12
- 150000004804 polysaccharides Chemical class 0.000 description 12
- 239000010802 sludge Substances 0.000 description 12
- 239000000243 solution Substances 0.000 description 12
- 239000002351 wastewater Substances 0.000 description 12
- 241000894006 Bacteria Species 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 9
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 229920003169 water-soluble polymer Polymers 0.000 description 9
- WHGYBXFWUBPSRW-FOUAGVGXSA-N beta-cyclodextrin Chemical compound OC[C@H]([C@H]([C@@H]([C@H]1O)O)O[C@H]2O[C@@H]([C@@H](O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O3)[C@H](O)[C@H]2O)CO)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@@H]3O[C@@H]1CO WHGYBXFWUBPSRW-FOUAGVGXSA-N 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 239000008187 granular material Substances 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 6
- 150000001491 aromatic compounds Chemical class 0.000 description 6
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 6
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 6
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 5
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 5
- 150000002009 diols Chemical class 0.000 description 5
- 239000003504 photosensitizing agent Substances 0.000 description 5
- 125000001302 tertiary amino group Chemical group 0.000 description 5
- 239000005058 Isophorone diisocyanate Substances 0.000 description 4
- 239000002202 Polyethylene glycol Substances 0.000 description 4
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 4
- 229910052753 mercury Inorganic materials 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 229920001223 polyethylene glycol Polymers 0.000 description 4
- 229920005862 polyol Polymers 0.000 description 4
- 150000003077 polyols Chemical class 0.000 description 4
- 150000003335 secondary amines Chemical class 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 3
- 239000001116 FEMA 4028 Substances 0.000 description 3
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 235000011175 beta-cyclodextrine Nutrition 0.000 description 3
- 229960004853 betadex Drugs 0.000 description 3
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical class C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 3
- 238000007664 blowing Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 229940097362 cyclodextrins Drugs 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 description 3
- 150000002989 phenols Chemical class 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 235000010413 sodium alginate Nutrition 0.000 description 3
- 239000000661 sodium alginate Substances 0.000 description 3
- 229940005550 sodium alginate Drugs 0.000 description 3
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 2
- DKEGCUDAFWNSSO-UHFFFAOYSA-N 1,8-dibromooctane Chemical compound BrCCCCCCCCBr DKEGCUDAFWNSSO-UHFFFAOYSA-N 0.000 description 2
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 2
- VVBLNCFGVYUYGU-UHFFFAOYSA-N 4,4'-Bis(dimethylamino)benzophenone Chemical compound C1=CC(N(C)C)=CC=C1C(=O)C1=CC=C(N(C)C)C=C1 VVBLNCFGVYUYGU-UHFFFAOYSA-N 0.000 description 2
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 2
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical class C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 2
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- QIVBCDIJIAJPQS-VIFPVBQESA-N L-tryptophane Chemical compound C1=CC=C2C(C[C@H](N)C(O)=O)=CNC2=C1 QIVBCDIJIAJPQS-VIFPVBQESA-N 0.000 description 2
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 description 2
- JLTDJTHDQAWBAV-UHFFFAOYSA-N N,N-dimethylaniline Chemical compound CN(C)C1=CC=CC=C1 JLTDJTHDQAWBAV-UHFFFAOYSA-N 0.000 description 2
- OPKOKAMJFNKNAS-UHFFFAOYSA-N N-methylethanolamine Chemical compound CNCCO OPKOKAMJFNKNAS-UHFFFAOYSA-N 0.000 description 2
- 241000589516 Pseudomonas Species 0.000 description 2
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- 235000010443 alginic acid Nutrition 0.000 description 2
- 239000000783 alginic acid Substances 0.000 description 2
- 229920000615 alginic acid Polymers 0.000 description 2
- 229960001126 alginic acid Drugs 0.000 description 2
- 150000004781 alginic acids Chemical class 0.000 description 2
- 125000002723 alicyclic group Chemical group 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 229910001413 alkali metal ion Inorganic materials 0.000 description 2
- XXROGKLTLUQVRX-UHFFFAOYSA-N allyl alcohol Chemical compound OCC=C XXROGKLTLUQVRX-UHFFFAOYSA-N 0.000 description 2
- HFHDHCJBZVLPGP-RWMJIURBSA-N alpha-cyclodextrin Chemical compound OC[C@H]([C@H]([C@@H]([C@H]1O)O)O[C@H]2O[C@@H]([C@@H](O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O3)[C@H](O)[C@H]2O)CO)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@@H]3O[C@@H]1CO HFHDHCJBZVLPGP-RWMJIURBSA-N 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
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- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical compound C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 description 2
- 235000010290 biphenyl Nutrition 0.000 description 2
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- 239000001110 calcium chloride Substances 0.000 description 2
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- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
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- KORSJDCBLAPZEQ-UHFFFAOYSA-N dicyclohexylmethane-4,4'-diisocyanate Chemical compound C1CC(N=C=O)CCC1CC1CCC(N=C=O)CC1 KORSJDCBLAPZEQ-UHFFFAOYSA-N 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- GDSRMADSINPKSL-HSEONFRVSA-N gamma-cyclodextrin Chemical compound OC[C@H]([C@H]([C@@H]([C@H]1O)O)O[C@H]2O[C@@H]([C@@H](O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O3)[C@H](O)[C@H]2O)CO)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@@H]3O[C@@H]1CO GDSRMADSINPKSL-HSEONFRVSA-N 0.000 description 2
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- GEMHFKXPOCTAIP-UHFFFAOYSA-N n,n-dimethyl-n'-phenylcarbamimidoyl chloride Chemical compound CN(C)C(Cl)=NC1=CC=CC=C1 GEMHFKXPOCTAIP-UHFFFAOYSA-N 0.000 description 2
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- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 2
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- 229940008841 1,6-hexamethylene diisocyanate Drugs 0.000 description 1
- FXRJDJNKKJZYNN-UHFFFAOYSA-N 1-(2-hydroxyethoxy)butan-2-ol Chemical compound CCC(O)COCCO FXRJDJNKKJZYNN-UHFFFAOYSA-N 0.000 description 1
- MIVJAXJQPQOBNY-UHFFFAOYSA-N 1-(2-hydroxyethoxy)pentan-2-ol Chemical compound CCCC(O)COCCO MIVJAXJQPQOBNY-UHFFFAOYSA-N 0.000 description 1
- DITKIEZYTFZFQH-UHFFFAOYSA-N 1-(2-hydroxyethoxy)propan-1-ol Chemical compound CCC(O)OCCO DITKIEZYTFZFQH-UHFFFAOYSA-N 0.000 description 1
- QCEPAYDHIMIVTH-UHFFFAOYSA-N 1-(3-hydroxypropoxy)propan-2-ol Chemical compound CC(O)COCCCO QCEPAYDHIMIVTH-UHFFFAOYSA-N 0.000 description 1
- SIYBFAKKDKDECW-UHFFFAOYSA-N 1-ethoxy-2,4-diisocyanatobenzene Chemical compound CCOC1=CC=C(N=C=O)C=C1N=C=O SIYBFAKKDKDECW-UHFFFAOYSA-N 0.000 description 1
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- 125000002791 glucosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 239000001963 growth medium Substances 0.000 description 1
- 235000019382 gum benzoic Nutrition 0.000 description 1
- MHIBEGOZTWERHF-UHFFFAOYSA-N heptane-1,1-diol Chemical compound CCCCCCC(O)O MHIBEGOZTWERHF-UHFFFAOYSA-N 0.000 description 1
- FHKSXSQHXQEMOK-UHFFFAOYSA-N hexane-1,2-diol Chemical compound CCCCC(O)CO FHKSXSQHXQEMOK-UHFFFAOYSA-N 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 1
- 159000000014 iron salts Chemical class 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- SGGOJYZMTYGPCH-UHFFFAOYSA-L manganese(2+);naphthalene-2-carboxylate Chemical compound [Mn+2].C1=CC=CC2=CC(C(=O)[O-])=CC=C21.C1=CC=CC2=CC(C(=O)[O-])=CC=C21 SGGOJYZMTYGPCH-UHFFFAOYSA-L 0.000 description 1
- 239000000594 mannitol Substances 0.000 description 1
- 235000010355 mannitol Nutrition 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- RBQRWNWVPQDTJJ-UHFFFAOYSA-N methacryloyloxyethyl isocyanate Chemical compound CC(=C)C(=O)OCCN=C=O RBQRWNWVPQDTJJ-UHFFFAOYSA-N 0.000 description 1
- AYLRODJJLADBOB-QMMMGPOBSA-N methyl (2s)-2,6-diisocyanatohexanoate Chemical compound COC(=O)[C@@H](N=C=O)CCCCN=C=O AYLRODJJLADBOB-QMMMGPOBSA-N 0.000 description 1
- CRVGTESFCCXCTH-UHFFFAOYSA-N methyl diethanolamine Chemical compound OCCN(C)CCO CRVGTESFCCXCTH-UHFFFAOYSA-N 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- MSHKXFDHUIFHMD-UHFFFAOYSA-N n-benzyl-n-butylbutan-1-amine Chemical compound CCCCN(CCCC)CC1=CC=CC=C1 MSHKXFDHUIFHMD-UHFFFAOYSA-N 0.000 description 1
- DYUWTXWIYMHBQS-UHFFFAOYSA-N n-prop-2-enylprop-2-en-1-amine Chemical compound C=CCNCC=C DYUWTXWIYMHBQS-UHFFFAOYSA-N 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- 229910001453 nickel ion Inorganic materials 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 229920001542 oligosaccharide Polymers 0.000 description 1
- 150000002482 oligosaccharides Chemical class 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- RPQRDASANLAFCM-UHFFFAOYSA-N oxiran-2-ylmethyl prop-2-enoate Chemical compound C=CC(=O)OCC1CO1 RPQRDASANLAFCM-UHFFFAOYSA-N 0.000 description 1
- FZUGPQWGEGAKET-UHFFFAOYSA-N parbenate Chemical compound CCOC(=O)C1=CC=C(N(C)C)C=C1 FZUGPQWGEGAKET-UHFFFAOYSA-N 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 125000005385 peroxodisulfate group Chemical group 0.000 description 1
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 1
- 208000017983 photosensitivity disease Diseases 0.000 description 1
- 231100000434 photosensitization Toxicity 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001610 polycaprolactone Polymers 0.000 description 1
- 239000004632 polycaprolactone Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229910001414 potassium ion Inorganic materials 0.000 description 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- UFUASNAHBMBJIX-UHFFFAOYSA-N propan-1-one Chemical compound CC[C]=O UFUASNAHBMBJIX-UHFFFAOYSA-N 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 238000007717 redox polymerization reaction Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000012488 sample solution Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- WSFQLUVWDKCYSW-UHFFFAOYSA-M sodium;2-hydroxy-3-morpholin-4-ylpropane-1-sulfonate Chemical compound [Na+].[O-]S(=O)(=O)CC(O)CN1CCOCC1 WSFQLUVWDKCYSW-UHFFFAOYSA-M 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910001427 strontium ion Inorganic materials 0.000 description 1
- PWYYWQHXAPXYMF-UHFFFAOYSA-N strontium(2+) Chemical compound [Sr+2] PWYYWQHXAPXYMF-UHFFFAOYSA-N 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 125000001174 sulfone group Chemical group 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 description 1
- YODZTKMDCQEPHD-UHFFFAOYSA-N thiodiglycol Chemical compound OCCSCCO YODZTKMDCQEPHD-UHFFFAOYSA-N 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 150000003623 transition metal compounds Chemical class 0.000 description 1
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
- 229960004799 tryptophan Drugs 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 229920003176 water-insoluble polymer Polymers 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
- IFNXAMCERSVZCV-UHFFFAOYSA-L zinc;2-ethylhexanoate Chemical compound [Zn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O IFNXAMCERSVZCV-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Description
体に取り込み、微生物の付着を阻害することなく、芳香族化合物とシクロデキストリンとの接触面積を大きくして包接効果をより高めることが可能となる。
本発明で用いられる不飽和基含有ウレタン樹脂(A)としては、好ましくは1分子中に少なくとも2個のエチレン性不飽和結合を有する親水性光硬化性樹脂が包含され、数平均分子量が一般に300〜30,000、好ましくは500〜20,000の範囲内にあり、水に分散するに十分なイオン性又は非イオン性の親水基、例えば、水酸基、カルボキシル基、リン酸基、スルホン酸基、アミノ基、エーテル結合等を分子中に有し、且つ約250〜600nmの範囲内の波長を有する活性光線を照射したとき、硬化して実質的に水に不溶性の樹脂に変わるものが好適に使用される。
子量6,000以下)やこれらとポリプロピレングリコールの混合物などが好適である。
デシレンジイソシアネート、1,5−ナフタレンジイソシアネート、ポリメチレンポリフェニレンジイソシアネート、トリフェニルメタントリイソシアネート、ナフタレンジイソシアネート、トリレンジイソシアネート重合体、ジフェニルメタンジイソシアネートの重合体、ヘキサメチレンジイソシアネートの重合体、3−フェニル−2−エチレンジイソシアネート、クメン−2,4−ジイソシアネート、4−メトキシ−1,3−フェニレンジイソシアネート、4−エトキシ−1,3−フェニレンジイソシアネート、2,4’−ジイソシアネートジフェニルエーテル、5,6−ジメチル−1,3−フェニレンジイソシアネート、4,4’−ジイソシアネートジフェニルエーテル、ベンジジンジイソシアネート、9,10−アンスラセンジイソシアネート、4,4’−ジイソシアネートベンジル、3,3’−ジメチル−4,4’−ジイソシアネートジフェニルメタン、2,6−ジメチル−4,4’−ジイソシアネートジフェニル、3,3’−ジメトキシ−4,4’−ジイソシアネートジフェニル、1,4−アンスラセンジイソシアネート、フェニレンジイソシアネート、2,4,6−トリレントリイソシアネート、2,4,4’−トリイソシアネートジフェニルエーテル、1,4−テトラメチレンジイソシアネート、1,6−ヘキサメチレンジイソシアネート、1,10−デカメチレンジイソシアネート、1,3−シクロヘキシレンジイソシアネート、4,4’−メチレン−ビス(シクロヘキシルイソシアネート)などが挙げられるが、これらに限定されるものではない。これらはそれぞれ単独でもしくは2種以上を組み合わせて使用することができる。
本発明において用いられるシクロデキストリンポリマー(B)としては、シクロデキストリンと、該シクロデキストリン中の官能基と反応し得る化合物、例えば、エピクロルヒドリンやポリイソシアネートとの反応物などが挙げられ、フェノール類の吸着能の観点から、特に、シクロデキストリンとポリイソシアネート化合物との反応物が好適である。
本発明において用いられる重合開始剤(C)としては、光重合開始剤及び/又はレドッ
クス系熱重合開始剤が好適である。
本発明において用いられる水溶性高分子多糖類(D)は、水溶性であり且つ水性媒体中で金属イオンと接触したときに水に不溶性または難溶性のゲルに変化する能力のある高分
子多糖類であって、一般に約3,000〜約2,000,000、特に約5,000〜約1,500,000の範囲内の数平均分子量を有し、また、金属イオンと接触させる前の水溶性の状態で、通常少なくとも約10g/l(25℃)の溶解度を示すものが好適に使用される。
液状組成物中に含有させるものを酸化剤又は還元剤のいずれか一方とし、もう一方を金属イオンを含有する水性媒体中に、例えば0.05〜5質量%、好ましくは0.1〜2質量%の範囲内の濃度で含有させるようにしてもよい。
の細菌類などを挙げることができる。これらのうちフェノール化合物の分解菌として有用なシュードモナス属、アシネトバクター属、アルカリゲネス属、ロドコッカス属などを好適に使用することができる。
還流冷却基及び滴下ロートの備えた300mlのフラスコに、β−シクロデキストリン(β−CD)と、β−CD20gに対し、ジラウリン酸ジ−n−ブチル錫(BLTと略記することもある)10滴及び精製ジメチルホルムアミド(DMFと略記する)150mlと、フットボール型スターラーを入れ、攪拌しながら溶解させた。フラスコ内の窒素置換を十分に行った後、ヘキサメチレンジイソシアネートを29.6g含むDMF溶液50mlをゆっくりと滴下し、70℃で24時間攪拌した。このときのβ−CDとヘキサメチレンジイソシアネートの使用モル比は1:10であった。反応が進行すると直ちに白色ポリマーが析出した(収率98%)。反応液をクロロホルム中に投じ、3時間攪拌し、DMF、触媒および未反応のヘキサメチレンジイソシアネートを除去した。
実施例1
分子量約4,000のポリエチレングリコール2,000gとイソホロンジイソシアネート222g(1モル)及びメタクリル酸2−ヒドロキシエチル130g(1モル)を反応させてなる不飽和基含有ウレタン樹脂50部と、上記のとおり製造したシクロデキストリンポリマー粉末50部と、2−ヒドロキシプロピオフェノン1部及び1%アルギン酸ナトリウム水溶液25部をよく混合して得られる水性液状組成物を、3%の塩化カルシウム水溶液中に、注射器(ノズル径1.99mm)の先端から液面高さ10cmより滴下したところ、粒径約2mmの粒状物が得られた。この粒状物を平らなペトリ皿にとり、ペトリ皿の上面および下面から1kw高圧水銀灯で紫外光線を30秒照射して担体粒子(1)を得た。
上記実施例1において、不飽和基含有ウレタン樹脂の使用量を60部及びシクロデキストリンポリマー粉末の使用量を40部とする以外は、実施例1と同様にして担体粒子(2)を得た。
上記実施例1において、不飽和基含有ウレタン樹脂の使用量を70部及びシクロデキストリンポリマー粉末の使用量を30部とする以外は、実施例1と同様にして担体粒子(3)を得た。
上記実施例1において、不飽和基含有ウレタン樹脂の使用量を80部及びシクロデキストリンポリマー粉末の使用量を20部とする以外は、実施例1と同様にして担体粒子(4)を得た。
上記実施例1において、不飽和基含有ウレタン樹脂の使用量を90部及びシクロデキストリンポリマー粉末の使用量を10部とする以外は、実施例1と同様にして担体粒子(5)を得た。
上記実施例1において、不飽和基含有ウレタン樹脂の使用量を100部とし、シクロデキストリンポリマー粉末を配合しない以外は、実施例1と同様にして担体粒子(6)を得た。
4つ口フラスコに、トルエン3,000部、グリシジルメタクリレート142部及びハイドロキノン0.1部を入れて撹拌し、空気を吹き込みながらN−メチルエタノールアミン75部を110℃で1時間かけて滴下し、さらに8時間その温度を保持し反応させ、アミン含有ジオールの溶液を得た。さらに、空気を吹き込みながら、この溶液にポリエチレングリコール(平均分子量約1,000)2,000部及びイソホロンジイソシアネート888部を添加して撹拌し、100℃で8時間保持し反応させイソシアネート基含有ウレタン樹脂を得た。さらに、アクリル酸2−ヒドロキシエチル232部を反応容器に入れ、空気を吹き込みながら80℃で3時間反応させ、イソシアネート基の残存がほとんど認められなくなったのを確認した後、脱イオン水5,000部を添加し、70℃で反応槽内を真空ポンプで1時間減圧してトルエンを除去し、固形分約40%の不飽和基含有ウレタン樹脂の水溶液を得た。樹脂の数平均分子量は3,300、エチレン性不飽和基の含有量は1分子当り平均約3個であった。
上記のとおり製造したシクロデキストリンポリマー粉末100部と、1%アルギン酸ナトリウム水溶液50部及び蒸留水100部をよく混合して得られる水性液状組成物を、3%の塩化カルシウム水溶液中に、注射器(ノズル径1.99mm)の先端から液面高さ10cmより滴下したところ、粒径約2mmの粒状物が得られた。この粒状物を平らなペトリ皿にとり、水洗して担体粒子(8)を得た。
上記で得た実施例及び比較例の担体粒子をそれぞれフェノール分解菌培地中に浸漬し、
フェノール分解菌を接種して1ヶ月間培養しながらフェノール分解菌を付着させ、微生物固定化担体とした。フェノール分解菌はノボジャイムジャパン(株)提供のDC1002CGを用いた。
炭素源としてフェノールのみが加えられたフェノール分解菌培地に、フェノール分解菌を付着させた生体触媒を投入して培養した。培養液の成分は、フェノールのほか、水1Lに対してK2HPO4 10.49g、KH2PO4 5.44g、MgSO4・7H2O 0.05g、MnSO4・4H2O 5.0mg、CaCl2・2H2O 0.662mg、FeSO4・7H2O 0.125mg、L−トリプトファン 30mg、及び(NH4)2SO4 2.00gからなる。培養液の初期フェノール濃度は500mg/Lとした。所定時間毎に培養液をシリンジで1mL採取し、前処理ディスクにて除菌処理したサンプル液をガスクロマトグラフで測定し、残留フェノール濃度を追跡した。
実施例3及び比較例1で得た担体粒子を用いてフェノール模擬排水の連続処理試験を行なった。フェノール模擬排水としては、前述のフェノール分解菌培地に用いた培養液を用いた。連続処理試験に用いた装置の概略(連続培養の流れ)を図1に示す。
Claims (5)
- (A)不飽和基含有ウレタン樹脂、(B)シクロデキストリンとポリイソシアネート化合物との反応物であるシクロデキストリンポリマー粉末、(C)重合開始剤、及び(D)金属イオンと接触した際にゲル化する能力を有する水溶性高分子多糖類を含んでなる水性液状組成物を、金属イオンを含有する水性媒体中にて粒状にゲル化させ、次いで得られる粒状ゲル中の不飽和基を光重合及び/又は熱重合させてなることを特徴とする微生物固定化用担体。
- 不飽和基含有ウレタン樹脂(A)が300〜30000の範囲内の数平均分子量を有し且つ不飽和基含量が0.04〜5モル/kg樹脂である請求項1に記載の微生物固定化用担体。
- 不飽和基含有ウレタン樹脂(A)及びシクロデキストリンポリマー(B)の使用比が、固形分質量比で、99/1〜30/70である請求項1に記載の微生物固定化用担体。
- 重合開始剤(C)が光重合開始剤及び/又は酸化剤と還元剤との組み合わせからなるレドックス系熱重合開始剤である請求項1に記載の微生物固定化用担体。
- 請求項1〜4のいずれか1項に記載の微生物固定化用担体を用いることを特徴とする排水処理方法。
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