KR102678135B1 - Activated carbon for water treatment and filter for water treatment containing the same - Google Patents
Activated carbon for water treatment and filter for water treatment containing the same Download PDFInfo
- Publication number
- KR102678135B1 KR102678135B1 KR1020230172757A KR20230172757A KR102678135B1 KR 102678135 B1 KR102678135 B1 KR 102678135B1 KR 1020230172757 A KR1020230172757 A KR 1020230172757A KR 20230172757 A KR20230172757 A KR 20230172757A KR 102678135 B1 KR102678135 B1 KR 102678135B1
- Authority
- KR
- South Korea
- Prior art keywords
- water treatment
- activated carbon
- pore
- pores
- pore volume
- Prior art date
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 218
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 127
- 239000011148 porous material Substances 0.000 claims abstract description 171
- 238000000034 method Methods 0.000 claims abstract description 44
- 238000004458 analytical method Methods 0.000 claims abstract description 21
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 66
- 239000002245 particle Substances 0.000 claims description 28
- 239000011230 binding agent Substances 0.000 claims description 14
- 239000011324 bead Substances 0.000 claims description 8
- 238000000691 measurement method Methods 0.000 claims description 6
- 239000012466 permeate Substances 0.000 claims description 4
- 239000012153 distilled water Substances 0.000 claims description 3
- 238000000642 dynamic headspace extraction Methods 0.000 claims description 3
- 238000004949 mass spectrometry Methods 0.000 claims description 3
- XPFVYQJUAUNWIW-UHFFFAOYSA-N furfuryl alcohol Chemical compound OCC1=CC=CO1 XPFVYQJUAUNWIW-UHFFFAOYSA-N 0.000 description 45
- 238000001179 sorption measurement Methods 0.000 description 19
- 238000001994 activation Methods 0.000 description 17
- 230000004913 activation Effects 0.000 description 16
- 239000000376 reactant Substances 0.000 description 16
- 239000007849 furan resin Substances 0.000 description 15
- 238000000746 purification Methods 0.000 description 15
- 230000000052 comparative effect Effects 0.000 description 14
- 239000000428 dust Substances 0.000 description 13
- 150000004045 organic chlorine compounds Chemical class 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000000084 colloidal system Substances 0.000 description 7
- 230000007423 decrease Effects 0.000 description 7
- 230000001681 protective effect Effects 0.000 description 7
- 238000004659 sterilization and disinfection Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 239000003463 adsorbent Substances 0.000 description 6
- 239000000460 chlorine Substances 0.000 description 6
- 239000003431 cross linking reagent Substances 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 5
- 239000006227 byproduct Substances 0.000 description 5
- 238000003763 carbonization Methods 0.000 description 5
- 239000003054 catalyst Substances 0.000 description 5
- 229910052801 chlorine Inorganic materials 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- -1 coconut shells Natural products 0.000 description 3
- 239000003651 drinking water Substances 0.000 description 3
- 235000020188 drinking water Nutrition 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000008213 purified water Substances 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 241000894007 species Species 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- UAZLASMTBCLJKO-UHFFFAOYSA-N 2-decylbenzenesulfonic acid Chemical compound CCCCCCCCCCC1=CC=CC=C1S(O)(=O)=O UAZLASMTBCLJKO-UHFFFAOYSA-N 0.000 description 2
- WBIQQQGBSDOWNP-UHFFFAOYSA-N 2-dodecylbenzenesulfonic acid Chemical compound CCCCCCCCCCCCC1=CC=CC=C1S(O)(=O)=O WBIQQQGBSDOWNP-UHFFFAOYSA-N 0.000 description 2
- HVBSAKJJOYLTQU-UHFFFAOYSA-N 4-aminobenzenesulfonic acid Chemical compound NC1=CC=C(S(O)(=O)=O)C=C1 HVBSAKJJOYLTQU-UHFFFAOYSA-N 0.000 description 2
- 244000215068 Acacia senegal Species 0.000 description 2
- 244000060011 Cocos nucifera Species 0.000 description 2
- 235000013162 Cocos nucifera Nutrition 0.000 description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- 229920000084 Gum arabic Polymers 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- LCTONWCANYUPML-UHFFFAOYSA-N Pyruvic acid Chemical compound CC(=O)C(O)=O LCTONWCANYUPML-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 2
- 239000000205 acacia gum Substances 0.000 description 2
- 235000010489 acacia gum Nutrition 0.000 description 2
- 239000003377 acid catalyst Substances 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 238000010000 carbonizing Methods 0.000 description 2
- 230000005465 channeling Effects 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 239000000645 desinfectant Substances 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
- 229940060296 dodecylbenzenesulfonic acid Drugs 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- ZSDSQXJSNMTJDA-UHFFFAOYSA-N trifluralin Chemical compound CCCN(CCC)C1=C([N+]([O-])=O)C=C(C(F)(F)F)C=C1[N+]([O-])=O ZSDSQXJSNMTJDA-UHFFFAOYSA-N 0.000 description 2
- WHOZNOZYMBRCBL-OUKQBFOZSA-N (2E)-2-Tetradecenal Chemical compound CCCCCCCCCCC\C=C\C=O WHOZNOZYMBRCBL-OUKQBFOZSA-N 0.000 description 1
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 1
- UYVWNPAMKCDKRB-UHFFFAOYSA-N 1,2,4,5-tetraoxane Chemical compound C1OOCOO1 UYVWNPAMKCDKRB-UHFFFAOYSA-N 0.000 description 1
- BGJSXRVXTHVRSN-UHFFFAOYSA-N 1,3,5-trioxane Chemical compound C1OCOCO1 BGJSXRVXTHVRSN-UHFFFAOYSA-N 0.000 description 1
- AQQPJNOXVZFTGE-UHFFFAOYSA-N 2-octadecylbenzenesulfonic acid Chemical compound CCCCCCCCCCCCCCCCCCC1=CC=CC=C1S(O)(=O)=O AQQPJNOXVZFTGE-UHFFFAOYSA-N 0.000 description 1
- UDTHXSLCACXSKA-UHFFFAOYSA-N 3-tetradecylbenzenesulfonic acid Chemical compound CCCCCCCCCCCCCCC1=CC=CC(S(O)(=O)=O)=C1 UDTHXSLCACXSKA-UHFFFAOYSA-N 0.000 description 1
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Natural products OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 1
- 238000004438 BET method Methods 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- 239000004155 Chlorine dioxide Substances 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 229920000426 Microplastic Polymers 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 241000533293 Sesbania emerus Species 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- 229960000583 acetic acid Drugs 0.000 description 1
- 235000011054 acetic acid Nutrition 0.000 description 1
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 235000010323 ascorbic acid Nutrition 0.000 description 1
- 239000011668 ascorbic acid Substances 0.000 description 1
- 229960005070 ascorbic acid Drugs 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 description 1
- 229940092714 benzenesulfonic acid Drugs 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 229960004365 benzoic acid Drugs 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 235000019398 chlorine dioxide Nutrition 0.000 description 1
- 229960004106 citric acid Drugs 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 229960002598 fumaric acid Drugs 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 239000002663 humin Substances 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- TYQCGQRIZGCHNB-JLAZNSOCSA-N l-ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(O)=C(O)C1=O TYQCGQRIZGCHNB-JLAZNSOCSA-N 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 239000001630 malic acid Substances 0.000 description 1
- 235000011090 malic acid Nutrition 0.000 description 1
- 229940099690 malic acid Drugs 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229940098779 methanesulfonic acid Drugs 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 229940116315 oxalic acid Drugs 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- 229920002866 paraformaldehyde Polymers 0.000 description 1
- 229940044654 phenolsulfonic acid Drugs 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 229940095574 propionic acid Drugs 0.000 description 1
- 229940107700 pyruvic acid Drugs 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229950000244 sulfanilic acid Drugs 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
- B01J20/28011—Other properties, e.g. density, crush strength
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
- B01J20/28057—Surface area, e.g. B.E.T specific surface area
- B01J20/28064—Surface area, e.g. B.E.T specific surface area being in the range 500-1000 m2/g
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
- B01J20/28078—Pore diameter
- B01J20/2808—Pore diameter being less than 2 nm, i.e. micropores or nanopores
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Nanotechnology (AREA)
- Inorganic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
Abstract
본 발명은 수처리용 활성탄소 및 이를 포함하는 수처리용 필터에 관한 것으로, BET 비표면적이 900 내지 1,300 m2/g 이고, DH법에 의한 세공분석에 있어서, 세공 직경이 1 내지 100 nm 범위인 세공의 전체 세공용적 중 세공 직경이 2 nm 이하인 세공의 세공용적의 비율이 80% 이상이고, MP법에 의한 세공분석에 있어서, 세공 직경이 0 내지 2 nm 범위인 세공의 전체 세공용적 중 세공 직경이 0.8 nm 이하인 세공의 세공용적의 비율이 85% 이상인 수처리용 활성탄소 및 이를 포함하는 수처리용 필터에 관한 것이다.The present invention relates to activated carbon for water treatment and a filter for water treatment containing the same, which has a BET specific surface area of 900 to 1,300 m 2 /g and, in pore analysis by the DH method, a pore diameter in the range of 1 to 100 nm. The ratio of the pore volume of pores with a pore diameter of 2 nm or less out of the total pore volume is 80% or more, and in pore analysis by the MP method, the pore diameter of the total pore volume of pores with a pore diameter in the range of 0 to 2 nm is 80% or more. It relates to activated carbon for water treatment having a pore volume ratio of 0.8 nm or less of 85% or more and a water treatment filter containing the same.
Description
본 발명은 수처리용 활성탄소 및 이를 포함하는 수처리용 필터에 관한 것으로, 수처리용 흡착제로서 클로로포름 등의 저분자 화합물의 흡착성능을 향상시키기 위한 활성탄소 비표면적 및 세공구조를 가지는 수처리용 활성탄소 및 이를 포함하는 수처리용 필터에 관한 것이다.The present invention relates to activated carbon for water treatment and a filter for water treatment containing the same. Activated carbon for water treatment having an activated carbon specific surface area and pore structure to improve the adsorption performance of low molecular compounds such as chloroform as an adsorbent for water treatment, and a filter containing the same. This relates to a water treatment filter.
물은 일반적으로 그 용도에 따라 식수, 농업용수, 공업용수 등으로 나누며, 다양한 용도에 맞춰 지하수나 강물 등을 정수하여 사용한다. 특히, 식수는 강물이나 지하수를 여과 및 살균 등의 다단계로 이루어지는 정수과정을 통하여 만들어져 공급되며, 상기 정수과정에서는 물에 함유된 각종 이물질을 흡착 및 제거하기 위하여 활성탄소를 사용한다.Water is generally divided into drinking water, agricultural water, and industrial water depending on its use, and groundwater and river water are purified and used for various purposes. In particular, drinking water is produced and supplied through a multi-stage purification process such as filtration and sterilization of river water or groundwater. In the purification process, activated carbon is used to adsorb and remove various foreign substances contained in the water.
상기 활성탄소(activated carbons)는 목재, 갈탄, 무연탄, 및 야자껍질 등을 원료로 제조되는 미세세공이 잘 발달된 무정형 탄소의 집합체로서, 활성화 과정에서 분자크기 정도의 미세세공이 잘 형성되어 큰 내부표면적을 가지게 되는 흡착제이다. 활성탄소는 단위 g당 1,000 m2 이상의 표면적을 갖기도 하는데 표면에 존재하는 탄소 원자의 관능기가 주위의 액체 또는 기체에 인력을 가하여 피흡착질의 분자를 흡착하는 성질이 있다. 따라서 활성탄소는 환경, 수처리 등의 제반 산업분야에서 활용되고 있다.The activated carbon is an aggregate of amorphous carbon with well-developed micropores manufactured from wood, lignite, anthracite, and coconut shell as raw materials. During the activation process, micropores of the size of molecules are well formed, resulting in a large internal space. It is an adsorbent that has a large surface area. Activated carbon may have a surface area of more than 1,000 m 2 per unit g, and the functional group of the carbon atom present on the surface has the property of adsorbing the molecules of the adsorbed substance by applying attractive force to the surrounding liquid or gas. Therefore, activated carbon is used in various industrial fields such as environment and water treatment.
이와 같이, 활성탄소는 다공성 탄소재료로서 내부에 무수한 세공이 발달되어 있는데 세공의 층 내부 표면적이 현저하게 크고, 또한 그 표면이 불순물에 대하여 친수성을 갖게 되기 때문에 피흡착 물질로서의 용해성 성분의 제거는 용해성 성분이 세공의 커다란 내부표면에 흡착함으로써 이루어지게 된다.In this way, activated carbon is a porous carbon material with numerous pores developed inside. The inner surface area of the pore layer is significantly large, and its surface is hydrophilic to impurities. Therefore, removal of soluble components as an adsorbed material requires soluble This is achieved by adsorbing the ingredients to the large internal surface of the pores.
현재까지 막분리와 고도산화기술이 주류인 고도정수처리 시장은 최근 비약적인 높은 흡착능을 보이는 활성탄소의 적용이 증가하고 있어 세계시장은 급격한 확산 중에 있는 추세이다.The advanced water treatment market, which has so far been dominated by membrane separation and advanced oxidation technologies, is rapidly expanding in the global market as the application of activated carbon, which has a dramatically high adsorption capacity, has recently increased.
이런 급속한 고도정수처리용 활성탄소의 수요증가에 따라 원자재확보 및 생산기반이 취약한 우리나라가 세계 물 시장에서 어려움이 예상되는 바, 국내 물 산업의 자생력을 키우기 위해서는 그 핵심기술이라 할 수 있는 고도정수처리용 흡착제로서 고효율의 활성탄소에 대한 연구 개발을 가속화시켜야 할 시점에 와있다.Due to the rapid increase in demand for activated carbon for advanced water treatment, Korea, which has a weak source of raw materials and a weak production base, is expected to face difficulties in the global water market. In order to increase the self-sufficiency of the domestic water industry, advanced water treatment, which can be considered a core technology, is needed. We are at a point where we need to accelerate research and development on highly efficient activated carbon as an adsorbent.
한편, 수돗물은 위생상의 이유로 인해 염소 등에 의한 살균이 의무화되어 있다. 그러나 살균을 목적으로 첨가되는 염소는 천연 유기물의 일종인 후민질을 산화 분해할 때에 소독부산물로서 발암성 물질인 유기 염소계 화합물을 생성해버린다. 상기 ‘소독부산물(Disinfection by-products)’이란 먹는물의 정수처리에 사용되는 소독제와 물 속의 유기화합물이 반응하여 생성되는 물질로서, 소독물질인 염소(Cl), 이산화염소(ClO2), 오존(O3) 등과 같은 것이 주입되면 수중의 유기·무기물질들과 함께 반응하여 산화되는데, 이러한 물질들이 산화되면서 트리할로멘탄(THMs), 알데히드(aldehyde), 케톤(ketone)과 같은 생성물을 생산하게 된다. 이러한 것들을 소독부산물이라고 한다. 수돗물에서 검출되는 소독부산물은 대부분 클로로포름(Chloroform)이다.Meanwhile, sterilization of tap water with chlorine is mandatory for hygiene reasons. However, when chlorine added for sterilization purposes oxidizes and decomposes humin, a type of natural organic matter, it produces organochlorine compounds, which are carcinogenic, as a disinfection by-product. The 'disinfection by-products' are substances produced by the reaction between a disinfectant used in the purification of drinking water and organic compounds in the water, including disinfectants such as chlorine (Cl), chlorine dioxide (ClO 2 ), and ozone ( When substances such as O 3 ) are injected, they react with organic and inorganic substances in the water and are oxidized. As these substances are oxidized, products such as trihalomenthanes (THMs), aldehydes, and ketones are produced. do. These are called disinfection by-products. Most disinfection by-products detected in tap water are chloroform.
이 때문에 유기 염소계 화합물의 제거하기 위하여 활성탄이 연구개발 되고 있으며, 더욱 높은 정수 능력을 구현하기 위하여 일본 공개특허공보 2001-240407호 및 일본 특허공보 제4628752호와 같이, 비표면적이나 세공 용적의 개선에 의해 활성탄의 성능 개선은 다양하게 시도되고 있으나, 아직까지 클로로포름 등을 포함하는 저분자 유기 염소계 화합물의 충분한 흡착성능을 만족하기에는 한계가 있었다. For this reason, activated carbon is being researched and developed to remove organic chlorine compounds, and in order to realize higher water purification ability, it is used to improve specific surface area or pore volume, as in Japanese Patent Laid-Open No. 2001-240407 and Japanese Patent No. 4628752. Various attempts have been made to improve the performance of activated carbon, but there are still limitations in satisfying the sufficient adsorption performance of low-molecular-weight organic chlorine compounds including chloroform.
또한, 종래의 활성탄소 필터는 활성탄소의 미분진이 발생하는 것을 방지하기 위하여 활성탄소에 바인더를 결합시켜 필터를 제조하고 있으나, 이 경우 정수과정에서 바인더가 정수되는 물에 의해 마모되어 탈리되거나, 정수 과정 중에 물에 용해될 시, 미세플라스틱이 정수된 물과 함께 배출될 수 있어 이를 섭취할 경우 건강상의 문제를 일으킬 수 있고, 상기 바인더가 마모되어 탈리된 경우에는 활성탄소가 미분진으로 배출될 수 있어, 미분진 발생의 문제가 여전히 남아있는 문제가 있었다.In addition, conventional activated carbon filters are manufactured by combining a binder with activated carbon to prevent the generation of fine dust from activated carbon. However, in this case, the binder is worn away by the water being purified and detached during the water purification process. When dissolved in water, microplastics can be discharged along with purified water, which can cause health problems if ingested, and when the binder is worn and detached, activated carbon can be discharged as fine dust. , the problem of fine dust generation still remained.
이와 같은 실정에 따라 본 발명은 바인더 탈리 또는 미분진 배출 문제가 발생하지 않으면서, 클로로포름 등과 같은 저분자 유기 염소계 화합물의 흡착 성능을 향상시킨 새로운 수처리용 활성탄소 필터를 제공하고자 한다. According to this situation, the present invention seeks to provide a new activated carbon filter for water treatment that improves the adsorption performance of low-molecular-weight organic chlorine compounds such as chloroform without causing binder detachment or fine dust discharge problems.
본 발명은 상기와 같은 과제를 해결하기 위해 창작된 것으로, 바인더 탈리 또는 미분진 배출 문제가 발생하지 않으면서, 클로로포름 등과 같은 저분자 유기 염소계 화합물의 흡착 성능이 우수한 수처리용 활성탄소 및 이를 포함하는 수처리용 필터를 제공하고자 하는 데 그 목적이 있다.The present invention was created to solve the above problems. Activated carbon for water treatment has excellent adsorption performance of low-molecular-weight organic chlorine compounds such as chloroform without causing binder detachment or fine dust discharge problems, and water treatment containing the same. The purpose is to provide a filter.
본 발명의 일 실시예에 따른 수처리용 활성탄소는, BET 비표면적이 900 내지 1,300 m2/g 이고, DH법에 의한 세공분석에 있어서, 세공 직경이 1 내지 100 nm 범위인 세공의 전체 세공용적 중 세공 직경이 2.0 nm 이하인 세공의 세공용적의 비율이 80% 이상이고, MP법에 의한 세공분석에 있어서, 세공 직경이 0 내지 2.0 nm 범위인 세공의 전체 세공용적 중 세공 직경이 0.8 nm 이하인 세공의 세공용적의 비율이 85% 이상인 것을 특징으로 한다.Activated carbon for water treatment according to an embodiment of the present invention has a BET specific surface area of 900 to 1,300 m 2 /g, and in pore analysis by the DH method, the total pore volume of pores with a pore diameter in the range of 1 to 100 nm The ratio of the pore volume of pores with a pore diameter of 2.0 nm or less is 80% or more, and in pore analysis by the MP method, pores with a pore diameter of 0.8 nm or less out of the total pore volume of pores with a pore diameter in the range of 0 to 2.0 nm It is characterized by a pore volume ratio of 85% or more.
또한, 일 실시예로서, 상기 수처리용 활성탄소는, DH법에 의한 세공분석에 있어서, 세공 직경이 1 내지 100 nm 범위인 세공의 전체 세공용적이 0.300 cc/g 이상이고, MP법에 의한 세공분석에 있어서, 세공 직경이 0 내지 2 nm 범위인 세공의 전체 세공용적이 0.340 cc/g 이상인 것을 특징으로 한다.In addition, as an example, the activated carbon for water treatment has a total pore volume of 0.300 cc/g or more with a pore diameter in the range of 1 to 100 nm in pore analysis by the DH method, and the pore volume by the MP method is In the analysis, the total pore volume of pores with a pore diameter ranging from 0 to 2 nm is characterized as 0.340 cc/g or more.
또한, 일 실시예로서, 상기 수처리용 활성탄소는, 평균 입경 100 내지 600 ㎛인 것이 바람직하며, 보다 구체적으로 200 내지 500 ㎛ 인 것을 특징으로 한다.Additionally, as an example, the activated carbon for water treatment preferably has an average particle diameter of 100 to 600 ㎛, and more specifically, 200 to 500 ㎛.
또한, 일 실시예로서, 상기 수처리용 활성탄소는, 압축강도가 8 N/bead 이상인 것을 특징으로 한다.Additionally, as an example, the activated carbon for water treatment is characterized in that it has a compressive strength of 8 N/bead or more.
또한, 일 실시예로서, 상기 수처리용 활성탄소는, 구형화도가 80% 이상인 것을 특징으로 한다.In addition, as an example, the activated carbon for water treatment is characterized by a sphericity degree of 80% or more.
또한, 본 발명의 또 다른 일 실시예에 따른 수처리용 필터는 상기 수처리용 활성탄소를 포함하는 것을 특징으로 한다.In addition, a filter for water treatment according to another embodiment of the present invention is characterized by including the activated carbon for water treatment.
또한, 일 실시예로서, 상기 수처리용 필터는, 바인더를 포함하지 않는 것을 특징으로 한다.Additionally, in one embodiment, the water treatment filter is characterized in that it does not include a binder.
또한, 일 실시예로서, 상기 수처리용 필터는, 하기 측정방법 1에 의해 측정한 클로로포름 제거수명이 1,900 L 이상인 것을 특징으로 한다.In addition, as an example, the water treatment filter is characterized by a chloroform removal life of 1,900 L or more as measured by Measurement Method 1 below.
[측정방법 1] [Measurement method 1]
증류수에 클로로포름(CHCl3)이 0.25 mg/L가 되도록 적가한 용액을, 활성탄소가 60 g 충전된 수처리용 필터에 1.0 kgf/cm2의 압력으로 흘려주고, 투과수에 대하여 퍼지 앤 트랩, 기체크로마토그래피-질량분석법을 통해 클로로포름 농도를 분석. 투과수를 50 L 단위로 채취하여 분석하며, 이 때, 클로로포름 제거율이 80% 미만이 될 때 까지 통수된 유량을 제거수명으로 함.A solution in which chloroform (CHCl 3 ) was added dropwise to distilled water to a concentration of 0.25 mg/L was passed through a water treatment filter filled with 60 g of activated carbon at a pressure of 1.0 kgf/cm 2 , and purge and trap and gas were applied to the permeate. Chloroform concentration was analyzed by chromatography-mass spectrometry. Permeate water is collected and analyzed in units of 50 L, and the flow rate passed until the chloroform removal rate is less than 80% is taken as the removal life.
본 발명은 수처리용 활성탄소의 비표면적 및 세공용적으로서, BET 비표면적이 900 내지 1,300 m2/g 이고, DH법에 의한 세공분석에 있어서, 세공 직경이 1 내지 100 nm 범위인 세공의 전체 세공용적 중 세공 직경이 2.0 nm 이하인 세공의 세공용적의 비율이 80% 이상이고, MP법에 의한 세공분석에 있어서, 세공 직경이 0 내지 2.0 nm 범위인 세공의 전체 세공용적 중 세공 직경이 0.8 nm 이하인 세공의 세공용적의 비율이 85% 이상인 활성탄소로 이루어진 수처리용 활성탄소 및 수처리용 필터를 제공함으로써, 적절한 BET 비표면적 및 세공용적의 제어를 통하여 저분자의 유기 염소계 화합물의 제거성능을 향상시킬 수 있는 효과가 있다.The present invention relates to the specific surface area and pore volume of activated carbon for water treatment, with a BET specific surface area of 900 to 1,300 m 2 /g, and in pore analysis by the DH method, the total pore volume of pores with a pore diameter in the range of 1 to 100 nm. The ratio of the pore volume of pores with a pore diameter of 2.0 nm or less is 80% or more, and in pore analysis by the MP method, pores with a pore diameter of 0.8 nm or less out of the total pore volume of pores with a pore diameter in the range of 0 to 2.0 nm By providing activated carbon for water treatment and a filter for water treatment made of activated carbon with a pore volume ratio of 85% or more, there is an effect of improving the removal performance of low-molecular-weight organic chlorine compounds through appropriate control of BET specific surface area and pore volume. there is.
또한, 본 발명에 따른 수처리용 활성탄소는 추가적으로 구형화도를 80% 이상으로 할 경우, 정수 성능이 보다 향상될 수 있을 뿐만 아니라, 압축강도, 내마모성이 향상되어 정수과정 시 마찰에 의해 발생되는 활성탄소의 마모가 억제되어, 필터 제조시 활성탄소 분진 방지를 위한 바인더 또는 별도의 흡착제를 필요로 하지 않는 효과가 있다.In addition, when the activated carbon for water treatment according to the present invention has an additional sphericity of 80% or more, not only can the water purification performance be improved, but also the compressive strength and abrasion resistance are improved, so that the activated carbon generated by friction during the water purification process can be reduced. Abrasion is suppressed, which has the effect of eliminating the need for a binder or separate adsorbent to prevent activated carbon dust during filter manufacturing.
도 1은 본 발명의 일 실시예에 따른 수처리용 활성탄소를 이용한 클로로포름 흡착 성능에 대해 나타낸 그래프이다.Figure 1 is a graph showing the chloroform adsorption performance using activated carbon for water treatment according to an embodiment of the present invention.
다른 식으로 정의하지 않는 한, 본 명세서에서 사용된 모든 기술적 및 과학적 용어들은 본 발명이 속하는 기술 분야에서 숙련된 전문가에 의해서 통상적으로 이해되는 것과 동일한 의미를 가진다. 일반적으로, 본 명세서에서 사용된 명명법은 본 기술 분야에서 잘 알려져 있고 통상적으로 사용되는 것이다.Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by a person skilled in the art to which the present invention pertains. In general, the nomenclature used herein is well known and commonly used in the art.
본 명세서 전체에서, 어떤 부분이 어떤 구성 요소를 “포함”한다고 할 때, 이는 특별히 반대되는 기재가 없는 한 다른 구성 요소를 제외하는 것이 아니라 다른 구성 요소를 더 포함할 수 있는 것을 의미한다.Throughout this specification, when a part “includes” a certain component, this means that it may further include other components rather than excluding other components, unless specifically stated to the contrary.
본 발명은 수처리용 흡착제로서 클로로포름 등의 저분자 화합물의 흡착성능을 향상시키기 위한 활성탄소 비표면적 및 세공구조를 가지는 수처리용 활성탄소 및 이를 포함하는 수처리용 필터에 관한 것이다.The present invention relates to activated carbon for water treatment having an activated carbon specific surface area and pore structure to improve the adsorption performance of low molecular compounds such as chloroform as an adsorbent for water treatment, and a water treatment filter containing the same.
활성탄은 목재(폐재, 간벌재, 톱밥), 커피 원두의 찌꺼기, 야자껍질, 나무껍질, 과일의 열매 등의 천연물 유래의 원료, 석유화학 부산물 및/또는 고분자 수지 등 다양한 원료를 탄화시켜 얻을 수 있으며, 활성탄의 원료는 이에 국한되지 않고, 활성탄을 제조할 수 있는 재료 혹은 방법이라면 무엇이든 사용 가능하다. Activated carbon can be obtained by carbonizing various raw materials such as wood (waste wood, thinning wood, sawdust), coffee bean residue, raw materials derived from natural products such as coconut shells, tree bark, and fruit, petrochemical by-products, and/or polymer resins. The raw material for activated carbon is not limited to this, and any material or method that can produce activated carbon can be used.
수처리용 활성탄소Activated carbon for water treatment
본 발명에 따른 수처리용 활성탄소는 BET(Brunauer, Emmett & Teller법) 비표면적이 900 내지 1,300 m2/g 인 것이 바람직하고, 950 내지 1,200 m2/g 인 것이 더욱 바람직하다. The activated carbon for water treatment according to the present invention preferably has a BET (Brunauer, Emmett & Teller method) specific surface area of 900 to 1,300 m 2 /g, and more preferably 950 to 1,200 m 2 /g.
수처리용 활성탄소의 BET 비표면적이 900 m2/g 미만일 경우에는 세공용적이 낮아지게 되어 충분한 흡착량을 얻지 못하는 문제가 있고, 수처리용 활성탄소의 BET 비표면적이 1,300 m2/g 초과일 경우에는 흡착성능은 향상될 수 있으나 세공직경이 크게 넓어져 저분자 화합물의 제거 성능이 저하되는 문제가 있다.If the BET specific surface area of activated carbon for water treatment is less than 900 m 2 /g, the pore volume becomes low and there is a problem of not obtaining sufficient adsorption amount, and if the BET specific surface area of activated carbon for water treatment is more than 1,300 m 2 /g, adsorption occurs. Performance can be improved, but there is a problem that the pore diameter is greatly expanded and the removal performance of low molecular compounds is reduced.
또한, 활성탄소의 세공 분포에 있어서, 어떤 직경의 세공이 어느정도 존재하는지에 따라, 흡착 대상의 흡착 효율이 변동한다. 주로 흡착 대상이 되는 분자종의 크기 등의 영향을 받는 것으로 파악되며, 기존의 정수기용 활성탄보다 클로로포름 등의 저분자 유기 염소계 화합물의 제거 성능을 높일 때에는 활성탄소의 세공 분포를 적절 하게 제어하는 것이 매우 중요하다.Additionally, in the pore distribution of activated carbon, the adsorption efficiency of the adsorption target varies depending on what diameter and how many pores exist. It is believed to be mainly affected by the size of the molecular species to be adsorbed, and it is very important to appropriately control the pore distribution of activated carbon when improving the removal performance of low-molecular-weight organic chlorine compounds such as chloroform compared to existing activated carbon for water purifiers. .
본 발명에 따른 수처리용 활성탄소는 DH법(Dollimore-Heal법)에 의한 세공분석에 있어서 세공 직경이 1 내지 100 nm 범위인 세공의 전체 세공용적 중 세공 직경이 2 nm 이하인 세공의 세공용적의 비율이 80% 이상인 것이 바람직하고, 87% 이상인 것이 보다 바람직하며, 93% 이상인 것이 더욱 바람직하다. The activated carbon for water treatment according to the present invention has a ratio of the pore volume of pores with a pore diameter of 2 nm or less to the total pore volume of pores with a pore diameter of 1 to 100 nm in pore analysis by the DH method (Dollimore-Heal method). It is preferable that it is 80% or more, more preferably 87% or more, and even more preferably 93% or more.
이때,DH법에 의한 세공분석에 있어서, 세공 직경이 1 내지 100 nm 범위인 세공의 전체 세공용적은 0.300 cc/g 이상인 것이 바람직하다. 세공용적이 0.300 cc/g 미만인 경우 클로로포름을 제거하기 위한 세공용적과 세공직경이 형성되지 않아 적합하지 않다.At this time, in pore analysis by the DH method, it is preferable that the total pore volume of pores with a pore diameter in the range of 1 to 100 nm is 0.300 cc/g or more. If the pore volume is less than 0.300 cc/g, it is not suitable because the pore volume and pore diameter for removing chloroform are not formed.
DH법은 일반적으로 2.0 nm 내지 50.0 nm의 직경의 메소조 세공의 분포 해석을 비교적 용이하게 파악할 수 있는 점에서, 당해 직경의 세공의 해석에 많이 사용된다. 세공 직경 2.0 nm 이하의 세공용적량도 거듭해서 규정함으로써, 저분자량 영역의 분자종 외에도 흡착 대상을 넓힌 활성탄소를 설계할 수 있다.The DH method is generally used to analyze pores with a diameter of 2.0 nm to 50.0 nm because it can relatively easily analyze the distribution of mesopore pores with a diameter of that diameter. By repeatedly specifying the pore volume with a pore diameter of 2.0 nm or less, activated carbon can be designed with a wide range of adsorption targets in addition to molecular species in the low molecular weight region.
DH법에 의한 세공분석에 있어서 세공 직경이 1 내지 100 nm 범위인 세공의 전체 세공용적 중 세공 직경이 2.0 nm 이하인 세공의 세공용적 비율이 80% 미만일 경우, 클로로포름 등의 저분자 유기 염소계 화합물의 제거 성능이 크게 저하되며, 저분자 흡착 대상 외 흡착 대상들에 대한 흡착력도 저하된다.In pore analysis by the DH method, when the pore volume ratio of pores with a pore diameter of 2.0 nm or less out of the total pore volume of pores with a pore diameter in the range of 1 to 100 nm is less than 80%, the removal performance of low molecular weight organic chlorine compounds such as chloroform This decreases significantly, and the adsorption capacity for adsorption targets other than the small molecule adsorption target also decreases.
또한, 본 발명에 따른 수처리용 활성탄소는 MP법(Micropore법)에 의한 세공분석에 있어서 세공 직경이 0 내지 2.0 nm 범위인 세공의 전체 세공용적 중 세공 직경이 0.8 nm 이하인 세공의 세공용적의 비율이 85% 이상인 것이 바람직하고, 87% 이상인 것이 보다 바람직하며, 93% 이상인 것이 더욱 바람직하다.In addition, the activated carbon for water treatment according to the present invention has a ratio of the pore volume of pores with a pore diameter of 0.8 nm or less to the total pore volume of pores with a pore diameter of 0 to 2.0 nm in pore analysis by the MP method (Micropore method). It is preferable that it is 85% or more, more preferably 87% or more, and even more preferably 93% or more.
이때, MP법에 의한 세공분석에 있어서, 세공 직경이 0 내지 2 nm 범위인 세공의 전체 세공용적은 0.340 cc/g 이상인 것이 바람직하다. 0.340 cc/g 미만인 경우 상기 DH법 세공용적과 동일한 이유에서 적합하지 않다.At this time, in pore analysis by the MP method, it is preferable that the total pore volume of pores with a pore diameter in the range of 0 to 2 nm is 0.340 cc/g or more. If it is less than 0.340 cc/g, it is not suitable for the same reason as the DH method pore volume.
MP법은 일반적으로 2.0 nm 이하의 직경의 마이크로 세공의 분포 해석을 비교적 용이하게 파악할 수 있는 점에서, 당해 직경의 세공의 해석에 많이 사용된다. 세공 직경 0.8 nm 이하의 세공은 예를 들면 클로로포름 등의 저분자량 영역의 분자종의 흡착, 여과와 관계된다. 그래서, 전체 세공 용적에 차지하는 세공 직경 0.8 nm 이하의 세공의 용적을 일정수 이상으로 유지함으로써, 본 발명이 목적으로 하는 저분자 유기 염소계 화합물의 여과 성능을 보다 향상시킬 수 있다.The MP method is generally used in the analysis of pores with a diameter of 2.0 nm or less because it can relatively easily analyze the distribution of micropores with a diameter of 2.0 nm or less. Pores with a pore diameter of 0.8 nm or less are involved in the adsorption and filtration of molecular species in the low molecular weight region, such as chloroform. Therefore, by maintaining the volume of pores with a pore diameter of 0.8 nm or less in the total pore volume at a certain number or more, the filtration performance of the low-molecular-weight organic chlorine-based compound targeted by the present invention can be further improved.
MP법에 의한 세공분석에 있어서, 세공 직경이 0 내지 2.0 nm 범위인 세공의 전체 세공용적 중 세공 직경이 0.8 nm 이하인 세공의 세공용적 비율이 85% 미만일 경우, 클로로포름 등의 저분자 유기 염소계 화합물의 제거 성능이 크게 저하된다.In pore analysis by the MP method, when the pore volume ratio of pores with a pore diameter of 0.8 nm or less out of the total pore volume of pores with a pore diameter in the range of 0 to 2.0 nm is less than 85%, low molecular weight organic chlorine compounds such as chloroform are removed. Performance deteriorates significantly.
또한, 본 발명에 따른 수처리용 활성탄소는 압축강도가 8 N/bead 이상인 것이 바람직하고, 10 N/bead 이상인 것이 보다 바람직하다. 구체적으로 압축강도가 8 N/Bead 이상일 경우에는 필터제작 후 사용 시 수압에 의한 파손이 일어나지 않으며, 내마모도 또한 향상되는 장점들이 있는 반면, 8 N/Bead 미만일 경우에는 정수 과정에서 마찰에 의해 활성탄소가 깨어져 분진을 발생시킬 수 있고 채널링 현상으로 인한 성능저하 문제가 있기 때문에 8 N/Bead 이상의 압축강도를 갖는 것이 바람직하다.In addition, the activated carbon for water treatment according to the present invention preferably has a compressive strength of 8 N/bead or more, and more preferably 10 N/bead or more. Specifically, if the compressive strength is more than 8 N/Bead, damage due to water pressure does not occur when using the filter after manufacturing, and wear resistance is also improved. On the other hand, if the compressive strength is less than 8 N/Bead, activated carbon is damaged by friction during the water purification process. Since it can break and generate dust and there is a problem of performance deterioration due to channeling phenomenon, it is desirable to have a compressive strength of 8 N/Bead or more.
또한, 본 발명에 있어서, 용어 「평균 입경」이란, 입도분포 측정장치(Accusizer 780A, Particle Sizing Systems)를 이용하여 활성탄소의 입도 누적선도을 그리고 누적 50% 점에서 가지는 활성탄소의 입경을 평균 입경(D50)이라 한다. 용어 「D50」이란, 상기 입자의 50부피%가 레이저 회절 입도 측정법으로도 알려져 있는 건식 레이저 입도 측정 기술로 측정했을 때 보다 낮은 직경을 갖는(입자의) 직경을 의미하는 것이다In addition, in the present invention, the term "average particle size" refers to the particle size cumulative diagram of activated carbon using a particle size distribution measuring device (Accusizer 780A, Particle Sizing Systems), and the particle size of activated carbon at 50% of the cumulative point is referred to as the average particle size (D50). It is said that The term "D50" refers to the diameter (of particles) at which 50% by volume of the particles have a lower diameter as measured by dry laser particle sizing technology, also known as laser diffraction particle size measurement.
활성탄소의 평균 입경 역시 수처리용 필터의 성능에 영향을 줄 수 있다. 구체적으로, 본 발명에 따른 활성탄소의 평균 입경은 100 내지 600 ㎛인 것이 바람직하며, 보다 구체적으로 200 내지 500 ㎛ 인 것이 더욱 바람직하다. The average particle size of activated carbon can also affect the performance of water treatment filters. Specifically, the average particle diameter of the activated carbon according to the present invention is preferably 100 to 600 ㎛, more specifically 200 to 500 ㎛.
활성탄소의 평균 입경이 너무 작으면 정수기에서 차압이 높게 걸리는 단점이 있고, 평균 입경이 너무 커지면 접촉면적이 작아져서 잔류염소 제거성능이 낮아지게 된다. 따라서, 활성탄소의 평균 입경은 100 내지 600 ㎛인 것이 바람직하다If the average particle size of activated carbon is too small, there is a disadvantage in that the differential pressure is high in the water purifier, and if the average particle size is too large, the contact area becomes small and the residual chlorine removal performance decreases. Therefore, it is preferable that the average particle diameter of activated carbon is 100 to 600 ㎛.
또한, 본 발명에 따른 수처리용 활성탄소는 추가적으로 구형화도를 바람직하게는 80% 이상, 보다 바람직하게는 85% 이상, 더욱 바람직하게는 90% 이상으로 함으로써 정수 성능을 더욱 향상시킬 수도 있다.In addition, the activated carbon for water treatment according to the present invention can further improve water purification performance by additionally setting the degree of sphericity to preferably 80% or more, more preferably 85% or more, and even more preferably 90% or more.
상기 ‘구형화도’는, 하기 식 1에 따라 얻어진 값을 의미한다. The ‘degree of sphericity’ refers to the value obtained according to Equation 1 below.
[식 1] [Equation 1]
구형화도(%): 단축길이(a) / 장축길이(b) × 100(%)Sphericity (%): minor axis length (a) / major axis length (b) × 100 (%)
이때, 상기 '구형'이란 수학적 의미의 구를 의미하지 않으며, 활성탄소의 3차원적 외형이 공과 같이 둥근 형태를 가짐을 의미한다. 활성탄소는 미세입자들로 이루어져 있으며, 이 미세입자들은 그의 표면으로부터 형성되어 내부로 이어지는 세공을 포함하고 있다.At this time, the term 'spherical' does not mean a sphere in the mathematical sense, but means that the three-dimensional appearance of activated carbon has a round shape like a ball. Activated carbon is made up of fine particles, and these fine particles contain pores that form on its surface and extend to its interior.
상기와 같이, 또한, 본 발명에 따른 수처리용 활성탄소는 구형화도가 80% 이상을 만족함으로써, 바인더 없이 수처리용 필터 제조할 수 있다.As described above, the activated carbon for water treatment according to the present invention satisfies a sphericity level of 80% or more, making it possible to manufacture a filter for water treatment without a binder.
즉, 본 발명에 따른 수처리용 필터는 바인더를 전혀 포함하지 않는 것뿐만 아니라, 실질적으로 본 발명을 회피하기 위한 목적으로 분진이 발생하지 않을 정도로 바인더를 포함하는 것 역시 바인더를 포함하지 않는 것으로 볼 수 있다.In other words, the filter for water treatment according to the present invention not only does not contain any binder, but also contains a binder to the extent that dust is not generated for the purpose of substantially avoiding the present invention. there is.
구체적으로, 활성탄소는 분말상으로 사용될 경우 정수과정에서 정수된 물과 함께 활성탄소의 분진이 함께 배출 될 우려가 있고, 입상으로 사용될 경우에는 정수과정에서 입상이 마모됨에 따라 부스러져 분말상의 활성탄소와 같이 분진을 발생시켜, 정수된 물과 함께 배출될 우려가 있다.Specifically, when activated carbon is used in powder form, there is a risk that activated carbon dust may be discharged along with the purified water during the water purification process, and when used in granular form, as the particles are worn during the water purification process, they break down and become like powdered activated carbon. It generates dust and may be discharged together with purified water.
이에, 본 발명은 수처리용 필터가 구형화도가 80% 이상인 활성탄소를 포함하여 이루어지도록 하여 상기 문제를 해결할 수도 있다. 구체적으로, 상기 활성탄소의 구형화도가 80% 이상일 경우에는 정수 성능이 향상될 수 있을 뿐만 아니라, 압축강도, 내마모성이 향상되어 정수과정 시 마찰에 의해 발생되는 활성탄소의 마모가 억제되어, 활성탄소 분진 방지를 위한 바인더 또는 별도의 흡착제를 필요로 하지 않는 이점이 있다. Accordingly, the present invention can solve the above problem by ensuring that the water treatment filter contains activated carbon with a sphericity of 80% or more. Specifically, when the degree of spheroidization of the activated carbon is 80% or more, not only can water purification performance be improved, but also compressive strength and abrasion resistance are improved, thereby suppressing wear of the activated carbon caused by friction during the water purification process, preventing activated carbon dust. It has the advantage of not requiring a binder or separate adsorbent.
반면에, 수처리용 필터가 활성탄소로 이루어지되, 80% 미만의 구형화도를 가질 경우, 80% 이상의 구형화도를 가질 경우에 비해, 필터 충전재로서의 조밀성이 감소되어 차압 및 채널링 현상이 발생되어, 정수 성능이 감소되고, 더욱이 구형화도가 낮아 입자의 균일성 향상이 충분하지 않기 때문에, 낮은 압축강도 및 내마모성을 갖게 되어 정수 과정에서의 마찰에 의한 활성 탄소의 마모 및 이에 따른 분진 발생 문제가 발생될 수도 있다. 따라서, 상기 활성탄소의 구형화도가 80% 이상인 것이 바람직하다.On the other hand, when a water treatment filter is made of activated carbon and has a sphericity of less than 80%, the density as a filter filler is reduced compared to a case with a sphericity of 80% or more, resulting in differential pressure and channeling phenomenon, which reduces water purification performance. This is reduced, and since the degree of sphericity is low and the uniformity of the particles is not sufficiently improved, it has low compressive strength and abrasion resistance, which may lead to the problem of wear of the activated carbon due to friction during the water purification process and subsequent dust generation. . Therefore, it is preferable that the degree of sphericity of the activated carbon is 80% or more.
수처리용 활성탄소 제조방법Activated carbon manufacturing method for water treatment
본 발명의 일 실시예에 따른 수처리용 활성탄소의 제조방법은 아래와 같다.The method for producing activated carbon for water treatment according to an embodiment of the present invention is as follows.
본 발명의 일 실시예에 따른 수처리용 활성탄소 제조방법은, 퓨란수지를 제조하는 제1 단계; 및 퓨란수지를 탄화한 후 활성화 하여, 활성탄소를 제조하는 제2 단계;를 포함한다.A method for producing activated carbon for water treatment according to an embodiment of the present invention includes a first step of producing a furan resin; And a second step of carbonizing the furan resin and then activating it to produce activated carbon.
본 발명에 있어서, 상기 제1 단계는 퍼퓨릴 알코올, 가교제, 물 및 촉매로 이루어진 반응물에 보호콜로이드를 첨가하여 승온 및 경화함으로써, 퓨란수지를 제조하는 단계로, 상세하게는 상기 반응물을 1차 승온한 후, 보호콜로이드를 첨가하여 2차 승온함으로써 경화하여 퓨란수지를 제조한다.In the present invention, the first step is a step of producing a furan resin by adding a protective colloid to a reactant consisting of furfuryl alcohol, a cross-linking agent, water, and a catalyst, raising the temperature, and curing the reactant. In detail, the first temperature increase of the reactant is performed. Afterwards, a protective colloid is added and the temperature is raised a second time to harden to produce a furan resin.
본 발명에 있어서, 용어 「중량부」 란, 특별히 달리 규정하지 않는 한 각 성분간의 중량의 비율을 의미 할 수 있다.In the present invention, the term “part by weight” may mean the ratio of weight between each component unless otherwise specified.
본 발명에 있어서, 상기 반응물을 펴퓨릴 알코올 100 중량부와, 상기 퍼퓨릴 알코올 100 중량부 기준으로 가교제 80 내지 130 중량부, 물 100 내지 300 중량부 및 촉매 1 내지 4 중량부로 이루어질 수 있고, 이에 한정되는 것은 아니다.In the present invention, the reactant may be composed of 100 parts by weight of furfuryl alcohol, 80 to 130 parts by weight of a crosslinking agent, 100 to 300 parts by weight of water, and 1 to 4 parts by weight of a catalyst based on 100 parts by weight of furfuryl alcohol. It is not limited.
구체적으로, 상기 퍼퓨릴 알코올(Furfuryl alcohol)은 하기 화학적 구조를 갖는 것으로서, 퓨란-2-일메탄올(Furan-2-ylmethanol)로 명명되는 것이다.Specifically, the furfuryl alcohol has the following chemical structure and is named furan-2-ylmethanol.
[구조식][constitutional formula]
본 발명에 있어서, 상기 반응물은 상기 퍼퓨릴 알코올 100 중량부 기준으로 가교제 80 내지 130 중량부를 포함할 수 있다.In the present invention, the reactant may include 80 to 130 parts by weight of a crosslinking agent based on 100 parts by weight of the furfuryl alcohol.
구체적으로, 가교제가 80 중량부 미만으로 포함될 경우에는 퓨란수지의 표면이 고르지 않아 마모가 발생할 수 있으며, 130 중량부를 초과할 경우 활성탄소의 압축강도가 낮아지는 문제가 있어, 가교제가 퍼퓨릴 알코올 100 중량부 기준으로 80 내지 130 중량부로 포함되는 것이 바람직하다.Specifically, if the cross-linking agent is included in less than 80 parts by weight, the surface of the furan resin may be uneven and wear may occur, and if it exceeds 130 parts by weight, there is a problem that the compressive strength of the activated carbon is lowered, so the cross-linking agent is 100 parts by weight of furfuryl alcohol. It is preferably contained in an amount of 80 to 130 parts by weight.
구체적으로 상기 가교제의 종류는 특정한 것으로 제한되지 않으나, 포르말린, 파라포름알데히드, 트리옥산, 테트라옥산, 아세탈 일 수 있고 이에 한정되는 것은 아니다.Specifically, the type of the crosslinking agent is not limited to a specific one, but may be formalin, paraformaldehyde, trioxane, tetraoxane, and acetal, but is not limited thereto.
본 발명에 있어서, 상기 반응물은 퍼퓨릴 알코올 100 중량부 기준으로 물 100 내지 300 중량부를 포함할 수 있다.In the present invention, the reactant may include 100 to 300 parts by weight of water based on 100 parts by weight of furfuryl alcohol.
구체적으로, 상기 반응물에 있어서, 물의 함량이 100 중량부 미만으로 포함될 경우에는 반응물이 난형 또는 덩어리로 형성되고, 300 중량부를 초과하여 포함될 경우에는 반응시간이 길어져 합성에 부적합하기 때문에 물이 퍼퓨릴 알코올 100 중량부 기준으로 100 내지 300 중량부로 포함되는 것이 바람직하다.Specifically, in the above reactant, if the content of water is less than 100 parts by weight, the reactant is formed into an egg shape or lump, and if the content of water is more than 300 parts by weight, the reaction time is prolonged, making it unsuitable for synthesis, so water is used as furfuryl alcohol. It is preferably included in 100 to 300 parts by weight based on 100 parts by weight.
본 발명에 있어서, 상기 반응물은 퍼퓨릴 알코올 100 중량부 기준으로 퍼퓨릴 알코올 100 중량부에 1 내지 4 중량부를 포함할 수 있다.In the present invention, the reactant may contain 1 to 4 parts by weight based on 100 parts by weight of furfuryl alcohol.
구체적으로, 상기 반응물에 있어서 촉매는 퍼퓨릴 알코올 및 물이 혼합된 반응물의 pH를 1 내지 5, 바람직하게는 pH를 2 내지 3으로 조절하여 반응성을 제어하기 위하여 투입되는 것으로서, 산 촉매가 바람직하다.Specifically, in the above reactant, the catalyst is added to control the reactivity by adjusting the pH of the reactant mixed with furfuryl alcohol and water to 1 to 5, preferably pH 2 to 3, and an acid catalyst is preferred. .
구체적으로, 상기 촉매가 1 중량부 미만으로 포함될 경우에는 반응이 진행되지 않거나 경화가 이루어지지 않으며, 4 중량부를 초과하여 포함될 경우에는 반응이 급격하게 진행되어 입자가 덩어리로 형성되거나 원하는 입자상을 얻기 어렵기 때문에 촉매는 퍼퓨릴 알코올 100중량부 기준으로 1 내지 4 중량부로 포함되는 것이 바람직하다. 구체적으로, 상기 산 촉매는 특정 물질로 제한되지 않으나, 황산, 염산, 질산, 아인산, 인산 등의 무기산이나, 데실벤젠술폰산, 도데실벤젠술폰산, 락트산, 말레산, 말론산, 말산, 메탄술폰산, 벤젠술폰산, 벤조산, 살리실산, 술파닐산, 시트르산, 아세트산, 아스코르브산, 옥살산, 옥타데실벤젠술폰산, 타르타르산, 테트라데실 벤젠술폰산, 트리플루오로아세트산, 파라톨루엔술폰산, 페놀술폰산, 푸마르산, 프로피온산, 피루브산 및 헥사데 실벤젠술폰산 중 선택되는 어느 하나 이상일 수 있으며, 바람직하게는 도데실벤젠술폰산인 것을 특징으로 하며, 이에 한정되는 것은 아니다.Specifically, if the catalyst is included in less than 1 part by weight, the reaction does not proceed or curing does not occur, and if it is included in more than 4 parts by weight, the reaction proceeds rapidly, causing particles to form in lumps or making it difficult to obtain the desired particle shape. Therefore, it is preferable that the catalyst is included in an amount of 1 to 4 parts by weight based on 100 parts by weight of furfuryl alcohol. Specifically, the acid catalyst is not limited to a specific material, but may include inorganic acids such as sulfuric acid, hydrochloric acid, nitric acid, phosphorous acid, and phosphoric acid, decylbenzenesulfonic acid, dodecylbenzenesulfonic acid, lactic acid, maleic acid, malonic acid, malic acid, methanesulfonic acid, Benzenesulfonic acid, benzoic acid, salicylic acid, sulfanilic acid, citric acid, acetic acid, ascorbic acid, oxalic acid, octadecylbenzenesulfonic acid, tartaric acid, tetradecyl benzenesulfonic acid, trifluoroacetic acid, p-toluenesulfonic acid, phenolsulfonic acid, fumaric acid, propionic acid, pyruvic acid and hexadecyl acid. It may be one or more selected from decylbenzenesulfonic acid, and is preferably dodecylbenzenesulfonic acid, but is not limited thereto.
본 발명에 있어서, 상기 반응물은 50 내지 100 ℃에서 1차 승온될 수 있고, 이에 한정되는 것은 아니다. 구체적으로 반응물의 1차 승온 온도가 50 ℃ 미만일 경우에는 반응 시간이 길어지거나 반응이 진행되지 않으며, 100 ℃를 초과할 경우에는 생성된 입자의 크기가 제어되지 않아 덩어리가 생성되기 때문에 상기 반응물은 50 내지 100 ℃ 에서 1차 승온되는 것이 바람직하다.In the present invention, the reactant may be first heated to a temperature of 50 to 100° C., but is not limited thereto. Specifically, if the first temperature increase temperature of the reactant is less than 50 ℃, the reaction time is prolonged or the reaction does not proceed, and if it exceeds 100 ℃, the size of the generated particles is not controlled and lumps are generated, so the reactant is heated to 50 ℃. It is preferable that the temperature is first raised from 100°C to 100°C.
또한, 상기 반응물을 1차 승온한 후에 상기 반응물에 보호콜로이드를 투입하고, 1차 승온보다 높은 온도로 2차 승온하여 경화함으로써, 퓨란수지를 제조할 수 있다.In addition, a furan resin can be produced by first raising the temperature of the reactant, adding a protective colloid to the reactant, and curing it by raising the temperature a second time to a higher temperature than the first temperature rise.
본 발명에 있어서 용어 「보호콜로이드」란, 입자의 분산 과정에서 표면에 작용하여 응집을 지연시키기 위한 것을 의미하며, 퍼퓨릴 알코올 100 중량부에 대해 0.01 내지 0.3 중량부로 투입될 수 있고, 이에 한정되는 것은 아니다.In the present invention, the term "protective colloid" refers to one that acts on the surface during the dispersion of particles to delay aggregation, and may be added in an amount of 0.01 to 0.3 parts by weight per 100 parts by weight of furfuryl alcohol, and is limited thereto. That is not the case.
구체적으로, 상기 보호콜로이드가 퍼퓨릴 알코올 100 중량부에 대해 0.01 중량부 미만으로 투입될 시에는 반응시간이 길어지거나 구형의 입자가 형성되지 않으며, 0.3 중량부를 초과하여 투입될 시에는 입자가 작게 형성되거나 분말상으로 제조되기 때문에 보호콜로이드가 퍼퓨릴 알코올 100 중량부에 대해 0.01 내지 0.3 중량부로 포함되는 것이 바람직하다.Specifically, when the protective colloid is added in less than 0.01 parts by weight relative to 100 parts by weight of furfuryl alcohol, the reaction time is prolonged or spherical particles are not formed, and when added in excess of 0.3 parts by weight, small particles are formed. Since it is manufactured in powder form, it is preferable that the protective colloid is included in an amount of 0.01 to 0.3 parts by weight based on 100 parts by weight of furfuryl alcohol.
본 발명에 있어서, 상기 보호콜로이드는 메틸셀룰로오스, 부분 가수분해 폴리비닐알코올, 아라비아검 및 하이드록시에틸셀룰로오스로 이루어진 군 중에서 선택되는 어느 하나 이상이며, 바람직하게는 아라비아검일 수 있고, 이에 한정되는 것은 아니다.In the present invention, the protective colloid is at least one selected from the group consisting of methylcellulose, partially hydrolyzed polyvinyl alcohol, gum arabic, and hydroxyethylcellulose, preferably gum arabic, but is not limited thereto. .
본 발명에 있어서 상기 2차 승온은 60 내지 120 ℃에서 이루어지며, 이에 한정되는 것은 아니다. 구체적으로, 상기 2차 승온 온도가 60 ℃ 미만일 경우 경화시간이 길어지거나 경화가 진행되지 않아 원하는 입자상을 얻을 수 없고, 120 ℃를 초과할 경우에는 퓨란수지가 용융되어 난형입자 혹은 덩어리가 생성되기 때문에 상기 2차 승온은 60 내지 120 ℃에서 이루어지는 것이 바람직하며, 구체적으로는 80 내지 100 ℃에서 2차 승온을 진행하는 것이 보다 바람직하다.In the present invention, the secondary temperature increase is performed at 60 to 120° C., but is not limited thereto. Specifically, if the secondary temperature increase temperature is less than 60 ℃, the curing time becomes longer or the curing does not proceed, making it impossible to obtain the desired particle shape, and if it exceeds 120 ℃, the furan resin melts and forms egg-shaped particles or lumps. It is preferable that the second temperature increase is performed at 60 to 120°C, and specifically, it is more preferable to perform the second temperature increase at 80 to 100°C.
또한, 상기 1차 및 2차 승온 시 교반은 200 내지 300 rpm으로 이뤄지도록 할 수도 있다. 이경우, 80% 이상의 구형화와 고압축강도를 갖는 구형 퓨란수지를 제조할 수 있다.Additionally, during the first and second temperature increases, stirring may be performed at 200 to 300 rpm. In this case, a spherical furan resin with spheroidization of more than 80% and high compressive strength can be produced.
상기 2차 승온으로 경화된 퓨란수지는 냉각된 후 세척 및 건조되며, 상기 냉각, 세척 및 건조는 종래 알려진 방법에 의해 실시될 수 있으며, 특별히 한정되지 않는다.The furan resin cured by the second temperature increase is cooled and then washed and dried. The cooling, washing, and drying may be performed by conventionally known methods and are not particularly limited.
본 발명에 있어서, 제2 단계는 상기 퓨란수지를 탄화한 후, 활성화하여, 활성탄소를 제조하는 단계로, 종래 알려진 탄화 및 활성화 방법에 의해 활성탄소를 제조할 수 있다. In the present invention, the second step is to carbonize the furan resin and then activate it to produce activated carbon. Activated carbon can be produced by conventionally known carbonization and activation methods.
구체적으로, 제조된 퓨란수지의 탄화 및 활성화 방법은 한정되지 않으나, 바람직하게는 상기 제조된 퓨란수지를 400 내지 600 ℃에서 1 내지 2시간 동안 탄화한 후, 800 내지 1000 ℃에서 30분 내지 150분간 수증기로 활성화하여 제조할 수 있고, 이에 한정되는 것은 아니다. Specifically, the carbonization and activation method of the prepared furan resin is not limited, but preferably, the prepared furan resin is carbonized at 400 to 600 ° C. for 1 to 2 hours, and then at 800 to 1000 ° C. for 30 minutes to 150 minutes. It can be manufactured by activating with water vapor, but is not limited to this.
탄화가 400 ℃ 미만에서 이루어질 경우 퓨란수지 내 불순물이 제거되지 않아 활성화 시 기공형성을 방해할 수 있으며 600 ℃를 초과하는 경우, 제조된 퓨란수지가 열수축으로 인하여 입자가 깨지는 현상이 발생할 수 있기 때문에 상기 제 2단계서의 탄화는 400 내지 600 ℃ 온도에서 진행하는 것이 바람직하고, 구체적으로 400 내지 500 ℃인 것이 바람직하다. If carbonization is performed below 400 ℃, impurities in the furan resin may not be removed, which may interfere with pore formation during activation. If carbonization is performed below 600 ℃, the produced furan resin may break into particles due to heat shrinkage. Carbonization in the second step is preferably carried out at a temperature of 400 to 600°C, and specifically, 400 to 500°C.
활성화가 800 ℃미만에서 이루어질 경우 활성탄소 표면 및 내부에 기공 형성이 진행되지 않아 수처리 성능을 나타내지 않으며 1000 ℃를 초과하는 온도에서 활성화가 이루어질 경우에는 활성탄소 표면의 과활성화로 인하여 압축강도 감소 및 2nm 이하의 세공용적 비율이 감소하여 수처리 성능이 감소할 수 있기 때문에 상기 제2 단계에서의 활성화는 800 내지 1000 ℃ 온도에서 진행하는 것이 바람직하고, 구체적으로 800 내지 900 ℃인 것이 바람직하다.If activation is performed below 800 ℃, pores do not form on the surface and inside of the activated carbon, so it does not show water treatment performance. If activation is performed at a temperature exceeding 1000 ℃, the compressive strength decreases and 2nm decreases due to overactivation of the activated carbon surface. Since water treatment performance may decrease due to a decrease in the pore volume ratio, the activation in the second step is preferably performed at a temperature of 800 to 1000 ° C., and specifically, 800 to 900 ° C.
상기 본 발명에 따른 제조방법에 의해 제조되는 수처리용 활성탄소는 BET 비표면적이 900 내지 1,300 m2/g 이고, DH법에 의한 세공분석에 있어서, 세공 직경이 1 내지 100 nm 범위인 세공의 전체 세공용적 중 세공 직경이 2.0 nm 이하인 세공의 세공용적의 비율이 80% 이상이고, MP법에 의한 세공분석에 있어서, 세공 직경이 0 내지 2.0 nm 범위인 세공의 전체 세공용적 중 세공 직경이 0.8 nm 이하인 세공의 세공용적의 비율이 85% 이상이고, 평균 입경이 100 내지 600 ㎛이고, 압축강도가 8 N/bead 이상이다. 또한, 추가적으로 구형화도가 80% 이상일 수 있다.The activated carbon for water treatment produced by the production method according to the present invention has a BET specific surface area of 900 to 1,300 m 2 /g, and in pore analysis by the DH method, the total pore diameter is in the range of 1 to 100 nm. The ratio of the pore volume of pores with a pore diameter of 2.0 nm or less in the pore volume is more than 80%, and in pore analysis by the MP method, the pore diameter is 0.8 nm out of the total pore volume of pores with a pore diameter in the range of 0 to 2.0 nm. The pore volume ratio of the pores below is 85% or more, the average particle diameter is 100 to 600 ㎛, and the compressive strength is 8 N/bead or more. Additionally, the degree of sphericity may be 80% or more.
수처리용 필터Filter for water treatment
본 발명의 또 다른 일 실시예에 따른 수처리용 필터는 상기한 수처리용 활성탄소를 포함한다.A filter for water treatment according to another embodiment of the present invention includes the above-described activated carbon for water treatment.
또한, 본 발명에 따른 수처리용 필터는 상기 설명한 바와 같이 바인더를 포함하지 않거나, 분진이 발생하지 않을 정도의 바인더만을 포함하는 것을 특징으로 한다.In addition, as described above, the water treatment filter according to the present invention is characterized in that it does not contain a binder or contains only a binder that does not generate dust.
또한, 본 발명에 따른 수처리용 필터는 하기 측정방법 1에 의해 측정한 클로로포름 제거수명이 1,900 L 이상이며, 바람직하게는 2,100 L 이상이며, 보다 바람직하게는 2,300 L 이상이며, 더욱 바람직하게는 2,500 L 이상인 것을 특징으로 한다.In addition, the water treatment filter according to the present invention has a chloroform removal life of 1,900 L or more, preferably 2,100 L or more, more preferably 2,300 L or more, and even more preferably 2,500 L, as measured by Measurement Method 1 below. It is characterized by the above.
[측정방법 1][Measurement method 1]
증류수에 클로로포름(CHCl3)이 0.25 mg/L가 되도록 적가한 용액을, 활성탄소가 60 g 충전된 수처리용 필터에 1.0 kgf/cm2의 압력으로 흘려주고, 투과수에 대하여 퍼지 앤 트랩, 기체크로마토그래피-질량분석법을 통해 클로로포름 농도를 분석하였다. 투과수를 50 L 단위로 채취하여 분석하였으며 이 때, 클로로포름 제거율이 80% 미만이 될 때 까지 통수된 유량을 제거수명으로 나타내었다.A solution in which chloroform (CHCl 3 ) was added dropwise to distilled water to a concentration of 0.25 mg/L was passed through a water treatment filter filled with 60 g of activated carbon at a pressure of 1.0 kgf/cm 2 , and purge and trap and gas were applied to the permeate. Chloroform concentration was analyzed through chromatography-mass spectrometry. Permeated water was collected and analyzed in units of 50 L, and the flow rate passed until the chloroform removal rate was less than 80% was expressed as the removal life.
상기 클로로포름 제거율 측정 방법은 정수기의 기준 규격 및 검사기관 지정고시 (환경부고시 제 2021-157호, 2021. 08. 03) 를 참고하여 진행하였다.The method of measuring the chloroform removal rate was carried out by referring to the standard specifications of water purifiers and the notice on designation of inspection agencies (Ministry of Environment Notice No. 2021-157, August 3, 2021).
참고로, 본 발명의 수처리용 필터는 필터케이스에 활성탄소를 충전한 형태이며, 이 때 상기 필터케이스의 재질, 구조, 및 구성요소 등에 대해서는 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 공지되어 있으므로, 이에 대한 자세한 설명은 생략하기로 한다.For reference, the water treatment filter of the present invention is a filter case filled with activated carbon, and the material, structure, and components of the filter case are not known to those skilled in the art. Since this is well-known, detailed description thereof will be omitted.
또한, 상기 필터케이스의 재질, 구조, 및 구성요소 등에 대해서는 본 발명이 속하는 분야에서 통상의 지식을 가진 자에게 공지된 내용은 본 발명의 내용에 합체된다In addition, information known to those skilled in the art regarding the material, structure, and components of the filter case is incorporated into the content of the present invention.
이하, 실시예를 통하여 본 발명의 일 실시예에 따른 수처리용 활성탄소의 흡착 성능에 대하여 더욱 상세히 설명하도록 한다.Hereinafter, the adsorption performance of activated carbon for water treatment according to an embodiment of the present invention will be described in more detail through examples.
<실시예 및 비교예><Examples and Comparative Examples>
<실시예 1><Example 1>
질소 가스(N2)를 1,000 cc/min 유량으로 맞춘 후, 건조된 퓨란수지를 200 g이 충전된 전기로반응기에 흘려주었다. 상기 반응기를 상온에서부터 10 ℃/min 의 속도로 승온시켜, 470 ℃까지 승온하여, 60분(유지시간) 유지함으로써 탄화하였다.After nitrogen gas (N 2 ) was adjusted to a flow rate of 1,000 cc/min, 200 g of dried furan resin was flowed into an electric furnace reactor filled with it. The reactor was carbonized by raising the temperature from room temperature at a rate of 10°C/min to 470°C and maintaining it for 60 minutes (holding time).
이후 활성화를 위해 10 ℃/mim 의 속도로 870 ℃ 까지 승온하여, 수증기를 사용하여 30분(유지시간) 유지하였다. Afterwards, for activation, the temperature was raised to 870°C at a rate of 10°C/mim and maintained for 30 minutes (maintenance time) using water vapor.
<실시예 2><Example 2>
상기 활성탄소 제조시 활성화 유지시간을 60분으로 한 것을 제외하고는 상기 실시예 1과 동일한 방법으로 구형 활성탄소를 제조하였다.Spherical activated carbon was prepared in the same manner as in Example 1, except that the activation time was set to 60 minutes.
<실시예 3><Example 3>
상기 활성탄소 제조시 활성화 유지시간을 100분으로 한 것을 제외하고는 상기 실시예 1과 동일한 방법으로 구형 활성탄소를 제조하였다.Spherical activated carbon was prepared in the same manner as in Example 1, except that the activation time was set to 100 minutes.
<실시예 4><Example 4>
상기 활성탄소 제조시 활성화 유지시간을 120분으로 한 것을 제외하고는 상기 실시예 1과 동일한 방법으로 구형 활성탄소를 제조하였다.Spherical activated carbon was prepared in the same manner as in Example 1, except that the activation time was set to 120 minutes.
<비교예 1><Comparative Example 1>
상기 활성탄소 제조시 활성화 유지시간을 10 분으로 한 것을 제외하고는 상기 실시예 1과 동일한 방법으로 활성탄소를 제조하였다.Activated carbon was prepared in the same manner as Example 1, except that the activation time was set to 10 minutes.
<비교예 2><Comparative Example 2>
상기 활성탄소 제조시 활성화 유지시간을 20분으로 한 것을 제외하고는 상기 실시예 1과 동일한 방법으로 활성탄소를 제조하였다.Activated carbon was prepared in the same manner as Example 1, except that the activation time was set to 20 minutes.
<비교예 3><Comparative Example 3>
상기 활성탄소 제조시 활성화온도 930 ℃ 및 활성화 유지시간을 120 180 분으로 한 것을 제외하고는 상기 실시예 1과 동일한 방법으로 활성탄소를 제조하였다.Activated carbon was prepared in the same manner as in Example 1, except that the activation temperature was 930°C and the activation retention time was 120 to 180 minutes.
<비교예4><Comparative Example 4>
상기 활성탄소 제조시 활성화온도 950 ℃ 및 활성화 유지시간을 120 210 분으로 한 것을 제외하고는 상기 실시예 1과 동일한 방법으로 활성탄소를 제조하였다.Activated carbon was prepared in the same manner as in Example 1, except that the activation temperature was 950°C and the activation retention time was 120 210 minutes.
상기 실시예 1 내지 4 및 비교예 1 내지 4에 따라 제조된 활성탄소의 BET 비표면적과 DH법 및 MP법에 따른 세공용적을 아래와 같은 방법을 통해 측정하였고, 그 결과는 아래 표 1에 나타내었다.The BET specific surface area and pore volume of the activated carbon prepared according to Examples 1 to 4 and Comparative Examples 1 to 4 and the pore volume according to the DH method and MP method were measured using the following methods, and the results are shown in Table 1 below.
BET 비표면적은 마이크로메리틱스사의 TriStar 3020을 사용하여 77K에 있어서의 질소 흡착 등온선을 측정하고, BET법(Brunauer, Emmett & Teller법)에 의해 구했다.The BET specific surface area was determined by measuring the nitrogen adsorption isotherm at 77K using TriStar 3020 from Micromeritics and using the BET method (Brunauer, Emmett & Teller method).
DH법(Dollimore-Heal법)에 따른 세공용적과 MP법(Micropore법)에 따른 세공용적은 마이크로메리틱스사의 TriStar 3020을 사용하여, 77K에서 질소 흡착하여 측정하였다.The pore volume according to the DH method (Dollimore-Heal method) and the pore volume according to the MP method (Micropore method) were measured by nitrogen adsorption at 77K using TriStar 3020 from Micromeritics.
<실험예><Experimental example>
상기 실시예 1 내지 4 및 비교예 1 내지 4에 따라 제조된 활성탄소를 이용하여 정수기의 기준 규격 및 검사기관 지정고시 (환경부고시 제 2021-157호, 2021. 08. 03)를 참고하여 클로로포름 제거수명(L) 및 통수량에 따른 제거율(%)을 측정하였고, 이를 아래 표 1 및 도 1에 나타내었다.Chloroform was removed using the activated carbon prepared according to Examples 1 to 4 and Comparative Examples 1 to 4, referring to the standard specifications and inspection agency designation notice for water purifiers (Ministry of Environment Notice No. 2021-157, Aug. 3, 2021). The removal rate (%) according to life (L) and water flow rate was measured, and these are shown in Table 1 and Figure 1 below.
상기 표 1 및 도 1에 나타나 있는 바와 같이, 본 발명에 따른 실시예의 활성탄소와 비교예의 활성탄소를 비교한 결과, As shown in Table 1 and Figure 1, as a result of comparing the activated carbon of the example according to the present invention and the activated carbon of the comparative example,
BET 비표면적 900 내지 1,300 m2/g 내에서, DH법에 의한 세공분석에 있어서 1 내지 100 nm 범위의 세공용적 중 2 nm 이하의 세공용적 비율이 80% 이상이고, MP법에 의한 세공분석에 있어서 0 내지 2.0 nm 범위의 세공용적 중 0.8 nm 이하의 세공용적 비율이 85% 이상을 만족하는 실시예 1 내지 4에 따른 활성탄소가 상기 물성범위를 일부 또는 전부 만족하지 않는 비교예들 보다 클로로포름 제거수명이 월등히 높은 것으로 나타났다.Within a BET specific surface area of 900 to 1,300 m 2 /g, the ratio of pore volumes of 2 nm or less among the pore volumes in the 1 to 100 nm range in pore analysis by the DH method is more than 80%, and in pore analysis by the MP method, Activated carbon according to Examples 1 to 4, in which the pore volume ratio of 0.8 nm or less among the pore volumes in the range of 0 to 2.0 nm satisfies 85% or more, removes chloroform better than the comparative examples that do not partially or fully satisfy the above physical property range. Lifespan was found to be significantly higher.
또한, 통수량에 따른 클로로포름 제거율에 있어서도, 본 발명에 따른 실시예 1 내지 4에 따른 활성탄소가 비교예들 보다 월등히 높은 통수량에서도 높은 클로로포름 제거성능을 유지하는 것으로 나타났다.In addition, in terms of chloroform removal rate according to water flow rate, the activated carbon according to Examples 1 to 4 according to the present invention was found to maintain high chloroform removal performance even at a much higher water flow rate than the comparative examples.
BET 비표면적이 900 m2/g 미만이면 DH법과 MP법에 의한 세공용적 형성이 부족하여 클로로포름 제거성능이 저하된다.If the BET specific surface area is less than 900 m 2 /g, chloroform removal performance is reduced due to insufficient pore volume formation by the DH method and MP method.
또한, BET 비표면적이 1,300 m2/g 보다 크면 세공직경이 커져 DH법에 의한 2.0 nm 이하의 세공용적 비율이 크게 감소하여 클로로포름 제거성능이 크게 감소하며, MP법에 의한 0.8 nm 세공용적 비율도 상기와 같은 이유로 감소하여 클로로포름 제거성능이 현저하게 저하된다.In addition, when the BET specific surface area is greater than 1,300 m 2 /g, the pore diameter increases, and the pore volume ratio of 2.0 nm or less by the DH method is greatly reduced, greatly reducing the chloroform removal performance, and the pore volume ratio of 0.8 nm by the MP method is also greatly reduced. Due to the above-mentioned reasons, the chloroform removal performance is significantly reduced.
이상으로 본 발명은 첨부된 도면에 도시된 실시예를 참조하여 설명되었으나, 이는 예시적인 것에 불과하며, 당해 기술이 속하는 분야에서 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 것을 이해할 것이다. 따라서 본 발명의 기술적 보호범위는 아래의 청구범위에 의해서 정하여져야 할 것이다.The present invention has been described above with reference to the embodiments shown in the accompanying drawings, but these are merely illustrative, and various modifications and other equivalent embodiments can be made by those skilled in the art. You will understand that Therefore, the scope of technical protection of the present invention should be determined by the claims below.
Claims (8)
DH법에 의한 세공분석에 있어서, 세공 직경이 1 내지 100 nm 범위인 세공의 전체 세공용적이 0.300 cc/g 초과이고, 세공 직경이 1 내지 100 nm 범위인 세공의 전체 세공용적 중 세공 직경이 2.0 nm 이하인 세공의 세공용적의 비율이 80% 이상이고,
MP법에 의한 세공분석에 있어서, 세공 직경이 0 내지 2.0 nm 범위인 세공의 전체 세공용적이 0.340 cc/g 이상이고, 세공 직경이 0 내지 2.0 nm 범위인 세공의 전체 세공용적 중 세공 직경이 0.8 nm 이하인 세공의 세공용적의 비율이 85% 이상인 것을 특징으로 하는, 수처리용 활성탄소.
The BET specific surface area is 900 to 1,300 m 2 /g,
In pore analysis by the DH method, the total pore volume of pores with a pore diameter ranging from 1 to 100 nm is greater than 0.300 cc/g, and the pore diameter of the total pore volume of pores with a pore diameter ranging from 1 to 100 nm is 2.0 The ratio of the pore volume of pores smaller than nm is 80% or more,
In pore analysis by the MP method, the total pore volume of pores with a pore diameter ranging from 0 to 2.0 nm is 0.340 cc/g or more, and the pore diameter of the total pore volume of pores with a pore diameter ranging from 0 to 2.0 nm is 0.8. Activated carbon for water treatment, characterized in that the ratio of pore volume of pores of nm or less is 85% or more.
상기 수처리용 활성탄소는,
평균 입경 100 내지 600 ㎛인 것을 특징으로 하는, 수처리용 활성탄소.
According to paragraph 1,
The activated carbon for water treatment is,
Activated carbon for water treatment, characterized in that the average particle diameter is 100 to 600 ㎛.
상기 수처리용 활성탄소는,
압축강도가 8 N/bead 이상인 것을 특징으로 하는, 수처리용 활성탄소.
According to paragraph 1,
The activated carbon for water treatment is,
Activated carbon for water treatment, characterized in that it has a compressive strength of 8 N/bead or more.
상기 수처리용 활성탄소는,
구형화도가 80% 이상인 것을 특징으로 하는, 수처리용 활성탄소.
According to paragraph 1,
The activated carbon for water treatment is,
Activated carbon for water treatment, characterized by a sphericity of 80% or more.
A filter for water treatment, characterized in that it contains the activated carbon for water treatment according to any one of claims 1, 3 to 5.
상기 수처리용 필터는,
바인더를 포함하지 않는 것을 특징으로 하는, 수처리용 필터.
According to clause 6,
The water treatment filter is,
A filter for water treatment, characterized in that it does not contain a binder.
상기 수처리용 필터는,
하기 측정방법 1에 의해 측정한 클로로포름 제거수명이 1,900 L 이상인 것을 특징으로 하는, 수처리용 필터.
[측정방법 1]
증류수에 클로로포름(CHCl3)이 0.25 mg/L가 되도록 적가한 용액을, 활성탄소가 60 g 충전된 수처리용 필터에 1.0 kgf/cm2의 압력으로 흘려주고, 투과수에 대하여 퍼지 앤 트랩, 기체크로마토그래피-질량분석법을 통해 클로로포름 농도를 분석. 투과수를 50 L 단위로 채취하여 분석하며, 이 때, 클로로포름 제거율이 80% 미만이 될 때 까지 통수된 유량을 제거수명으로 함.According to clause 6,
The water treatment filter is,
A water treatment filter characterized by a chloroform removal life of 1,900 L or more as measured by measurement method 1 below.
[Measurement method 1]
A solution in which chloroform (CHCl 3 ) was added dropwise to distilled water to a concentration of 0.25 mg/L was passed through a water treatment filter filled with 60 g of activated carbon at a pressure of 1.0 kgf/cm 2 , and purge and trap and gas were applied to the permeate. Chloroform concentration was analyzed by chromatography-mass spectrometry. Permeated water is collected and analyzed in 50 L units, and the flow rate passed until the chloroform removal rate is less than 80% is taken as the removal life.
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS4628752Y1 (en) | 1967-10-19 | 1971-10-05 | ||
JP2001240407A (en) | 1999-12-24 | 2001-09-04 | Kuraray Chem Corp | Activated carbon and its manufacturing method |
JP6379325B1 (en) * | 2016-12-19 | 2018-08-22 | 株式会社アドール | Activated carbon and manufacturing method thereof |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS4628752Y1 (en) | 1967-10-19 | 1971-10-05 | ||
JP2001240407A (en) | 1999-12-24 | 2001-09-04 | Kuraray Chem Corp | Activated carbon and its manufacturing method |
JP6379325B1 (en) * | 2016-12-19 | 2018-08-22 | 株式会社アドール | Activated carbon and manufacturing method thereof |
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