JP2013226510A - シアン含有排水の処理方法および処理剤 - Google Patents
シアン含有排水の処理方法および処理剤 Download PDFInfo
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- 239000002351 wastewater Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 38
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 title abstract description 12
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 38
- 239000005749 Copper compound Substances 0.000 claims abstract description 33
- 239000010949 copper Substances 0.000 claims abstract description 33
- 150000001880 copper compounds Chemical class 0.000 claims abstract description 33
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 30
- 229910052802 copper Inorganic materials 0.000 claims abstract description 29
- 238000000926 separation method Methods 0.000 claims abstract description 29
- 150000002681 magnesium compounds Chemical class 0.000 claims abstract description 26
- 229920000620 organic polymer Polymers 0.000 claims abstract description 14
- 238000005189 flocculation Methods 0.000 claims abstract description 11
- 230000016615 flocculation Effects 0.000 claims abstract description 11
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 claims description 45
- 150000003839 salts Chemical class 0.000 claims description 27
- 239000011777 magnesium Substances 0.000 claims description 12
- -1 copper (I) ions Chemical class 0.000 claims description 11
- 229910052749 magnesium Inorganic materials 0.000 claims description 11
- 150000001875 compounds Chemical class 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 35
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 24
- 239000003002 pH adjusting agent Substances 0.000 abstract description 14
- 238000004062 sedimentation Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 10
- 238000001914 filtration Methods 0.000 abstract description 7
- 239000010802 sludge Substances 0.000 abstract description 7
- 244000144992 flock Species 0.000 abstract description 3
- 150000002825 nitriles Chemical class 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 23
- 229910001385 heavy metal Inorganic materials 0.000 description 20
- 150000002500 ions Chemical class 0.000 description 17
- 230000002776 aggregation Effects 0.000 description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 239000002516 radical scavenger Substances 0.000 description 9
- 230000004931 aggregating effect Effects 0.000 description 8
- PANJMBIFGCKWBY-UHFFFAOYSA-N iron tricyanide Chemical compound N#C[Fe](C#N)C#N PANJMBIFGCKWBY-UHFFFAOYSA-N 0.000 description 8
- 239000007788 liquid Substances 0.000 description 8
- 150000007524 organic acids Chemical class 0.000 description 8
- 239000002244 precipitate Substances 0.000 description 8
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 7
- 238000004220 aggregation Methods 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 6
- 238000005054 agglomeration Methods 0.000 description 6
- 239000012295 chemical reaction liquid Substances 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 150000002505 iron Chemical class 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- VMQMZMRVKUZKQL-UHFFFAOYSA-N Cu+ Chemical compound [Cu+] VMQMZMRVKUZKQL-UHFFFAOYSA-N 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 5
- 239000002738 chelating agent Substances 0.000 description 5
- 150000004696 coordination complex Chemical class 0.000 description 5
- 150000001879 copper Chemical class 0.000 description 5
- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate Chemical compound [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- RGHNJXZEOKUKBD-SQOUGZDYSA-N D-gluconic acid Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 description 4
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 4
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 238000005345 coagulation Methods 0.000 description 4
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- 239000008394 flocculating agent Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 description 3
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 3
- DOBRDRYODQBAMW-UHFFFAOYSA-N copper(i) cyanide Chemical compound [Cu+].N#[C-] DOBRDRYODQBAMW-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
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- QGKMIGUHVLGJBR-UHFFFAOYSA-M (4z)-1-(3-methylbutyl)-4-[[1-(3-methylbutyl)quinolin-1-ium-4-yl]methylidene]quinoline;iodide Chemical compound [I-].C12=CC=CC=C2N(CCC(C)C)C=CC1=CC1=CC=[N+](CCC(C)C)C2=CC=CC=C12 QGKMIGUHVLGJBR-UHFFFAOYSA-M 0.000 description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical group NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 2
- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 description 2
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical class [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 2
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical class OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 2
- 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 2
- 239000002253 acid Substances 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- 235000015165 citric acid Nutrition 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 229910000365 copper sulfate Inorganic materials 0.000 description 2
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 2
- 239000000174 gluconic acid Substances 0.000 description 2
- 235000012208 gluconic acid Nutrition 0.000 description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 2
- 229910001629 magnesium chloride Inorganic materials 0.000 description 2
- 229910001425 magnesium ion Inorganic materials 0.000 description 2
- YIXJRHPUWRPCBB-UHFFFAOYSA-N magnesium nitrate Chemical compound [Mg+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O YIXJRHPUWRPCBB-UHFFFAOYSA-N 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
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- 239000007787 solid Substances 0.000 description 2
- 239000011975 tartaric acid Substances 0.000 description 2
- 235000002906 tartaric acid Nutrition 0.000 description 2
- PQUXFUBNSYCQAL-UHFFFAOYSA-N 1-(2,3-difluorophenyl)ethanone Chemical compound CC(=O)C1=CC=CC(F)=C1F PQUXFUBNSYCQAL-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- 229910021592 Copper(II) chloride Inorganic materials 0.000 description 1
- NAVJNPDLSKEXSP-UHFFFAOYSA-N Fe(CN)2 Chemical class N#C[Fe]C#N NAVJNPDLSKEXSP-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical group NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 230000009920 chelation Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010668 complexation reaction Methods 0.000 description 1
- 150000004699 copper complex Chemical class 0.000 description 1
- 229910000366 copper(II) sulfate Inorganic materials 0.000 description 1
- 238000007333 cyanation reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- MSNWSDPPULHLDL-UHFFFAOYSA-K ferric hydroxide Chemical compound [OH-].[OH-].[OH-].[Fe+3] MSNWSDPPULHLDL-UHFFFAOYSA-K 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- 159000000014 iron salts Chemical class 0.000 description 1
- 229910000358 iron sulfate Inorganic materials 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229940047670 sodium acrylate Drugs 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical class [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 description 1
- 150000004764 thiosulfuric acid derivatives Chemical class 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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- Treatment Of Water By Oxidation Or Reduction (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Removal Of Specific Substances (AREA)
Abstract
反応により生成するシアンの不溶性塩の凝集効果を向上させて、凝集分離によるシアン除去率を向上させることができ、シアンの除去率が高く、凝集剤添加量を低減でき、銅由来の汚泥発生量も低減できるシアン含有排水の処理方法および処理剤を得る。
【解決手段】
反応槽1にL1からシアン含有排水を導入し、L2から還元剤を供給し、L3から銅化合物とマグネシウム化合物を含む処理剤を供給し、L4からpH調整剤を供給し反応させ、凝集槽2でL7から無機凝集剤を供給し、L8からpH調整剤を供給して凝集させ、L10から有機高分子凝集剤を供給してフロックを形成させ、沈降分離槽3で沈降分離し、ろ過分離槽4で残留する微細な析出物をろ過分離する。
【選択図】図1
Description
Cu++CN−→CuCN↓ ・・・(1)
4Cu++Zn(CN)4 2−→4CuCN↓+Zn2+・・・(2)
Cu++Ag(CN)2 −→4CuAg(CN)2↓・・・(3)
xCu2++yFe2++zFe(CN)6 4−→FexCuy〔Fe(CN)6〕z↓・・・(4)
(1) シアン含有排水に銅化合物およびマグネシウム化合物を、還元剤の存在下に反応させ、シアンの不溶性塩を生成させて分離することを特徴とするシアン含有排水の処理方法。
(2) 不溶性塩を生成させた後に、凝集剤を添加して凝集分離する上記(1)記載の方法。
(3) 銅化合物は、還元剤存在下に銅(I)イオンになる化合物である上記(1)または(2)記載の方法。
(4) 銅化合物とマグネシウム化合物の比率はCuとMgの重量比で95:5〜60:40である上記(1)ないし(3)のいずれかに記載の方法。
(5) 還元剤は銅化合物を銅(I)イオンに還元するものである上記(1)ないし(4)のいずれかに記載の方法。
(6) 凝集剤は無機凝集剤および有機高分子凝集剤である上記(2)ないし(5)のいずれかに記載の方法。
(7) 銅化合物およびマグネシウム化合物を含むシアン含有排水の処理剤。
(8) 銅化合物とマグネシウム化合物の比率はCuとMgの重量比で95:5〜60:40である上記(7)記載の処理剤。
図1の装置(ただしろ過分離槽は省略)において、被処理水を反応槽1に導入し、銅化合物とマグネシウム化合物を含む処理剤、還元剤およびpH調整剤を供給し、攪拌機5で攪拌混合してpH調整、還元、反応を行った。反応液を凝集槽2へ移送し、無機凝集剤およびpH調整剤を供給し、攪拌機6で急速攪拌して凝集反応を行った。凝集槽2の凝集反応液を沈降分離槽3へ移送する過程で、有機高分子凝集剤を供給して緩速攪拌し、フロックを形成した凝集反応液を沈降分離槽3で沈降分離した。結果を表1に示す。
実施例1〜2において、還元剤、銅化合物、マグネシウム化合物のいずれかを添加しないで同様の試験を行った。結果を表1に示す。
M1,M2,M3: モータ、L1: 被処理水導入路、L2: 還元剤供給路、L3: 処理剤供給路、L4,L8: pH調整剤供給路、L5,L9,L12: 移送路、L6: 重金属捕集剤供給路、L7: 無機凝集剤供給路、L10: 有機高分子凝集剤供給路、L11: 汚泥排出路、L13: 処理水路。
Claims (8)
- シアン含有排水に銅化合物およびマグネシウム化合物を、還元剤の存在下に反応させ、シアンの不溶性塩を生成させて分離することを特徴とするシアン含有排水の処理方法。
- 不溶性塩を生成させた後に、凝集剤を添加して凝集分離する請求項1記載の方法。
- 銅化合物は、還元剤存在下に銅(I)イオンになる化合物である請求項1または2記載の方法。
- 銅化合物とマグネシウム化合物の比率はCuとMgの重量比で95:5〜60:40である請求項1ないし3のいずれかに記載の方法。
- 還元剤は銅化合物を銅(I)イオンに還元するものである請求項1ないし4のいずれかに記載の方法。
- 凝集剤は無機凝集剤および有機高分子凝集剤である請求項2ないし5のいずれかに記載の方法。
- 銅化合物およびマグネシウム化合物を含むシアン含有排水の処理剤。
- 銅化合物とマグネシウム化合物の比率はCuとMgの重量比で95:5〜60:40である請求項7記載の処理剤。
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014111254A (ja) * | 2012-11-01 | 2014-06-19 | Katayama Chem Works Co Ltd | シアン含有廃水の処理方法 |
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JP2015213856A (ja) * | 2014-05-08 | 2015-12-03 | Jfeケミカル株式会社 | シアン含有排水の処理方法 |
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KR20230051427A (ko) | 2020-08-19 | 2023-04-18 | 쿠리타 고교 가부시키가이샤 | 시안 함유수의 처리 방법 및 처리 장치 |
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JP2014111254A (ja) * | 2012-11-01 | 2014-06-19 | Katayama Chem Works Co Ltd | シアン含有廃水の処理方法 |
JP2015213856A (ja) * | 2014-05-08 | 2015-12-03 | Jfeケミカル株式会社 | シアン含有排水の処理方法 |
CN104355386A (zh) * | 2014-12-02 | 2015-02-18 | 成都华西堂投资有限公司 | 一种应用于烟气湿法脱硫的复合絮凝剂及其使用方法 |
CN107922225A (zh) * | 2015-08-21 | 2018-04-17 | 株式会社片山化学工业研究所 | 含氰废水用的水处理剂组合物 |
CN107922225B (zh) * | 2015-08-21 | 2021-08-20 | 株式会社片山化学工业研究所 | 含氰废水用的水处理剂组合物 |
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JP2018069227A (ja) * | 2016-10-21 | 2018-05-10 | 日鉄住金環境株式会社 | 廃水の処理方法 |
CN106345151B (zh) * | 2016-10-28 | 2018-06-29 | 韦志锋 | 一种污水沉淀池及其操作方法 |
CN106345151A (zh) * | 2016-10-28 | 2017-01-25 | 韦志锋 | 新型污水沉淀池及其操作方法 |
KR20230051427A (ko) | 2020-08-19 | 2023-04-18 | 쿠리타 고교 가부시키가이샤 | 시안 함유수의 처리 방법 및 처리 장치 |
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