JP5617863B2 - シアン含有排水の処理方法 - Google Patents
シアン含有排水の処理方法 Download PDFInfo
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- JP5617863B2 JP5617863B2 JP2012080438A JP2012080438A JP5617863B2 JP 5617863 B2 JP5617863 B2 JP 5617863B2 JP 2012080438 A JP2012080438 A JP 2012080438A JP 2012080438 A JP2012080438 A JP 2012080438A JP 5617863 B2 JP5617863 B2 JP 5617863B2
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- containing wastewater
- cyanide
- chlorine
- added
- cyanate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 title claims description 40
- 238000004065 wastewater treatment Methods 0.000 title 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 56
- 239000000460 chlorine Substances 0.000 claims description 56
- 229910052801 chlorine Inorganic materials 0.000 claims description 56
- 239000002351 wastewater Substances 0.000 claims description 51
- 238000000034 method Methods 0.000 claims description 25
- 239000003513 alkali Substances 0.000 claims description 22
- 239000002455 scale inhibitor Substances 0.000 claims description 19
- -1 ammonium ions Chemical class 0.000 claims description 15
- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate Chemical compound [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 claims description 8
- 239000005416 organic matter Substances 0.000 claims description 8
- 238000000354 decomposition reaction Methods 0.000 claims description 7
- DBVJJBKOTRCVKF-UHFFFAOYSA-N Etidronic acid Chemical compound OP(=O)(O)C(O)(C)P(O)(O)=O DBVJJBKOTRCVKF-UHFFFAOYSA-N 0.000 claims description 6
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 150000003839 salts Chemical class 0.000 claims description 4
- 238000003672 processing method Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 239000000126 substance Substances 0.000 description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 3
- 239000005708 Sodium hypochlorite Substances 0.000 description 3
- 239000000571 coke Substances 0.000 description 3
- 150000007661 iron cyano complex Chemical class 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 229910001424 calcium ion Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- QPJDMGCKMHUXFD-UHFFFAOYSA-N cyanogen chloride Chemical compound ClC#N QPJDMGCKMHUXFD-UHFFFAOYSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- CIWBSHSKHKDKBQ-SZSCBOSDSA-N 2-[(1s)-1,2-dihydroxyethyl]-3,4-dihydroxy-2h-furan-5-one Chemical compound OC[C@H](O)C1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-SZSCBOSDSA-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
- 239000002211 L-ascorbic acid Substances 0.000 description 1
- 235000000069 L-ascorbic acid Nutrition 0.000 description 1
- 229910019093 NaOCl Inorganic materials 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 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
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000005580 one pot reaction Methods 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- MNWBNISUBARLIT-UHFFFAOYSA-N sodium cyanide Chemical compound [Na+].N#[C-] MNWBNISUBARLIT-UHFFFAOYSA-N 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- LIXWSNVLHFNXAJ-UHFFFAOYSA-N sodium;oxidoazaniumylidynemethane Chemical compound [Na+].[O-][N+]#[C-] LIXWSNVLHFNXAJ-UHFFFAOYSA-N 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- ANRHNWWPFJCPAZ-UHFFFAOYSA-M thionine Chemical compound [Cl-].C1=CC(N)=CC2=[S+]C3=CC(N)=CC=C3N=C21 ANRHNWWPFJCPAZ-UHFFFAOYSA-M 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- 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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/14—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
Description
NaCN+NaOCl→NaCNO+NaCl …(1)
二段反応:pH7〜8,ORP制御値600〜650mV
2NaCNO+3NaClO+H2O→N2+3NaCl+2NaHCO3 …(2)
特許文献2には、アンモニアを含むシアン含有排水をアルカリ塩素法の2段階の反応によって処理する方法が記載されている。
試験水として次の水質の発電設備の集塵水を用いた。
pH:8.7、
全シアン:3mg/L、
アンモニウムイオン:120mg/L、
TOC:10mg/L、
溶解性鉄:0.1mg/L未満
Claims (5)
- シアン化合物を含有するシアン含有排水に塩素源を添加してシアン化合物を分解するシアン含有排水の処理方法において、
該シアン含有排水がアンモニウムイオン及び有機物を含有しており、
該シアン含有排水の溶解性鉄の濃度が0.4mg/L以下であり、
該シアン含有排水のpHを11以上とし、シアン化合物分解反応後においても遊離残留塩素濃度が0.1mg/L以上となるように前記塩素源を添加すると共に、ホスホン酸系スケール防止剤を添加することを特徴とするシアン含有排水の処理方法。 - 請求項1において、前記ホスホン酸系スケール防止剤が1−ヒドロキシエチリデン−1,1−ジホスホン酸、2−ホスホノブタン−1,2,4−トリカルボン酸、及びそれらの塩から選ばれる少なくとも1種であることを特徴とするシアン含有排水の処理方法。
- 請求項1又は2において、前記遊離残留塩素濃度が0.1〜1mg/Lとなるように前記塩素源を添加することを特徴とするシアン含有排水の処理方法。
- 請求項1ないし3のいずれか1項において、前記シアン含有排水にアルカリ源を添加してpHを11〜12.5とする方法であって、
該アルカリ源と前記スケール防止剤とを混合して一液化して添加することを特徴とするシアン含有排水の処理方法。 - 請求項1ないし4のいずれか1項において、シアン含有排水の水温を40℃以上とすることを特徴とするシアン含有排水の処理方法。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012080438A JP5617863B2 (ja) | 2012-03-30 | 2012-03-30 | シアン含有排水の処理方法 |
PCT/JP2013/059476 WO2013147128A1 (ja) | 2012-03-30 | 2013-03-29 | シアン含有排水の処理方法 |
DE112013001804.7T DE112013001804T5 (de) | 2012-03-30 | 2013-03-29 | Verfahren zur Behandlung von cyanidhaltigem Abwasser |
KR1020147026020A KR102054535B1 (ko) | 2012-03-30 | 2013-03-29 | 시안 함유 배수의 처리 방법 |
CN201380014559.3A CN104169226B (zh) | 2012-03-30 | 2013-03-29 | 含氰排水的处理方法 |
TW102111464A TWI527768B (zh) | 2012-03-30 | 2013-03-29 | 含氰排水的處理方法 |
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JP2012080438A JP5617863B2 (ja) | 2012-03-30 | 2012-03-30 | シアン含有排水の処理方法 |
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JP2013208551A JP2013208551A (ja) | 2013-10-10 |
JP5617863B2 true JP5617863B2 (ja) | 2014-11-05 |
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Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS50161482A (ja) * | 1974-06-21 | 1975-12-27 | ||
JPS5549191A (en) * | 1978-10-03 | 1980-04-09 | Hitachi Plant Eng & Constr Co Ltd | Purifying treatment method of waste water |
JPS5579095A (en) * | 1978-12-08 | 1980-06-14 | Kurita Water Ind Ltd | Treating method for cooling water of waste incinerated ash |
JPH01171690A (ja) * | 1987-12-26 | 1989-07-06 | Sumitomo Metal Mining Co Ltd | 鉄シアン錯体の除去方法 |
JPH0675707B2 (ja) * | 1990-07-25 | 1994-09-28 | 栗田工業株式会社 | シアン化合物含有液の処理方法および装置 |
JP4423734B2 (ja) * | 2000-03-27 | 2010-03-03 | 栗田工業株式会社 | シアン含有排水の処理方法 |
JP4106415B2 (ja) * | 2000-04-21 | 2008-06-25 | 株式会社片山化学工業研究所 | シアン含有廃水の処理方法 |
JP2003038909A (ja) * | 2001-07-31 | 2003-02-12 | Kurita Water Ind Ltd | 金属精錬炉排ガスの湿式集塵器循環水の処理方法 |
JP2006334508A (ja) * | 2005-06-02 | 2006-12-14 | Nippon Parkerizing Co Ltd | シアン・アンモニア含有廃液の同時連続処理方法および同時連続処理装置 |
WO2007080811A1 (ja) * | 2006-01-11 | 2007-07-19 | Kurita Water Industries Ltd. | スケール防止剤及びスケール防止方法 |
JP2007260586A (ja) * | 2006-03-29 | 2007-10-11 | Jfe Steel Kk | コークス炉で発生する廃水の処理方法 |
JP4611928B2 (ja) * | 2006-04-24 | 2011-01-12 | 栗田工業株式会社 | 石炭ガス化排水の処理方法及び処理装置 |
JP4894403B2 (ja) * | 2006-08-10 | 2012-03-14 | 栗田工業株式会社 | シアン含有排水の処理方法及び装置 |
JP5047715B2 (ja) * | 2007-07-19 | 2012-10-10 | 電源開発株式会社 | 石炭ガス化排水の処理方法及び処理装置 |
JP5544716B2 (ja) * | 2009-01-13 | 2014-07-09 | 栗田工業株式会社 | 鉄鋼製造工程における循環冷却水の洗浄方法 |
JP5707677B2 (ja) * | 2009-05-28 | 2015-04-30 | 栗田工業株式会社 | 転炉集塵水系の鉄スケール付着防止方法及び付着防止剤 |
JP5434663B2 (ja) * | 2010-02-23 | 2014-03-05 | Jfeスチール株式会社 | シアン含有排水の処理方法および処理装置 |
JP5663988B2 (ja) * | 2010-07-12 | 2015-02-04 | Jfeスチール株式会社 | シアン含有水の処理方法 |
JP2012157798A (ja) * | 2011-01-31 | 2012-08-23 | Jfe Steel Corp | シアン含有廃水の処理方法 |
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