JP2016128144A - 排水処理方法および排水処理装置 - Google Patents
排水処理方法および排水処理装置 Download PDFInfo
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- JP2016128144A JP2016128144A JP2015002973A JP2015002973A JP2016128144A JP 2016128144 A JP2016128144 A JP 2016128144A JP 2015002973 A JP2015002973 A JP 2015002973A JP 2015002973 A JP2015002973 A JP 2015002973A JP 2016128144 A JP2016128144 A JP 2016128144A
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- wastewater treatment
- ions
- nitrite
- metal oxide
- zeolite
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- 238000004065 wastewater treatment Methods 0.000 title claims description 42
- -1 nitrite ions Chemical class 0.000 claims abstract description 56
- 229910002651 NO3 Inorganic materials 0.000 claims abstract description 22
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 19
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 19
- 239000010457 zeolite Substances 0.000 claims abstract description 19
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 18
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000007864 aqueous solution Substances 0.000 claims abstract description 9
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 7
- 150000001768 cations Chemical class 0.000 claims abstract description 7
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 6
- 239000011733 molybdenum Substances 0.000 claims abstract description 6
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 6
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 6
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 6
- 239000010937 tungsten Substances 0.000 claims abstract description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000010703 silicon Substances 0.000 claims abstract description 5
- 229910000476 molybdenum oxide Inorganic materials 0.000 claims abstract description 4
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims 1
- 239000002351 wastewater Substances 0.000 abstract description 42
- 239000000243 solution Substances 0.000 abstract 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 34
- 229940005654 nitrite ion Drugs 0.000 description 32
- 238000006243 chemical reaction Methods 0.000 description 21
- 239000000463 material Substances 0.000 description 21
- 230000001590 oxidative effect Effects 0.000 description 14
- 238000003756 stirring Methods 0.000 description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 230000003647 oxidation Effects 0.000 description 9
- 238000007254 oxidation reaction Methods 0.000 description 9
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 4
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 4
- 229910017464 nitrogen compound Inorganic materials 0.000 description 4
- 150000002830 nitrogen compounds Chemical class 0.000 description 4
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 description 3
- 238000010170 biological method Methods 0.000 description 3
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000001272 nitrous oxide Substances 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910004283 SiO 4 Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000011197 physicochemical method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Images
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- Treatment Of Water By Oxidation Or Reduction (AREA)
- Catalysts (AREA)
Abstract
Description
亜硝酸イオンは、水中に溶け込んでいる酸素と反応して、硝酸イオンに変換されるものと推測される。
排水は、水に金属塩(NaNO2、KNO3、NaCl、KBr、K2SO4)を溶解させて生成したものを用いた。排水中には、NO2 -(約250mg/L、約5.6mmol/L)とNO3 -(約250mg/L、約4.2mmol/L)が含まれている。また、排水中には、共存成分としてCl-(約50mg/L)、Br-(約250mg/L)、SO4 -(約500mg/L)が含まれている。
以上、本発明の実施例について説明したが、本発明はこれに限定されるものではなく、各請求項に記載した範囲を逸脱しない限り、各請求項の記載文言に限定されず、当業者がそれらから容易に置き換えられる範囲にも及び、かつ、当業者が通常有する知識に基づく改良を適宜付加することができる。
20 亜硝酸イオン酸化材料
Claims (12)
- 少なくとも亜硝酸イオンを含有する水溶液に、水溶液中の亜硝酸イオンを硝酸イオンに変換することが可能な金属酸化物を接触させることを特徴とする排水処理方法。
- 前記金属酸化物は、モリブデン、タングステン、ニッケル、ケイ素、アルミニウムから選択される1以上の金属の酸化物であることを特徴する請求項1に記載の排水処理方法。
- 前記金属酸化物は、ゼオライトであることを特徴とする請求項2に記載の排水処理方法。
- 前記ゼオライトに含まれるシリカ/アルミナの比が10〜1000の範囲内であることを特徴とする請求項3に記載の排水処理方法。
- 前記ゼオライトに含まれるカチオンはプロトンであることを特徴とする請求項3または4に記載の排水処理方法。
- 前記金属酸化物は、モリブデン酸化物であることを特徴とする請求項2に記載の排水処理方法。
- 水溶液中の亜硝酸イオンを硝酸イオンに変換することが可能な金属酸化物が設けられた排水処理部(10)を備え、
少なくとも亜硝酸イオンを含有する水溶液を前記排水処理部(10)に供給し、当該水溶液に前記金属酸化物を接触させることを特徴とする排水処理装置。 - 前記金属酸化物は、モリブデン、タングステン、ニッケル、ケイ素、アルミニウムから選択される1以上の金属の酸化物であることを特徴する請求項7に記載の排水処理装置。
- 前記金属酸化物は、ゼオライトであることを特徴とする請求項8に記載の排水処理装置。
- 前記ゼオライトは、シリカ/アルミナの比が10〜1000の範囲内であることを特徴とする請求項9に記載の排水処理装置。
- 前記ゼオライトに含まれるカチオンはプロトンであることを特徴とする請求項8または9または10に記載の排水処理装置。
- 前記金属酸化物は、モリブデン酸化物であることを特徴とする請求項8に記載の排水処理装置。
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Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5085566A (ja) * | 1973-12-03 | 1975-07-10 | ||
JPH01262992A (ja) * | 1988-04-11 | 1989-10-19 | Osaka Gas Co Ltd | 廃水の処理方法 |
JPH0490826A (ja) * | 1990-08-01 | 1992-03-24 | Agency Of Ind Science & Technol | 排ガス浄化方法 |
JPH08276194A (ja) * | 1995-04-07 | 1996-10-22 | Nippon Shokubai Co Ltd | 廃水の処理方法 |
JP2000117272A (ja) * | 1998-10-16 | 2000-04-25 | Osaka Gas Co Ltd | 廃水の処理方法 |
JP2001149958A (ja) * | 1999-12-01 | 2001-06-05 | Cataler Corp | 水処理方法 |
JP2008207102A (ja) * | 2007-02-27 | 2008-09-11 | Nippon Shokubai Co Ltd | 排水の処理方法 |
JP2010167368A (ja) * | 2008-12-22 | 2010-08-05 | Panasonic Corp | アンモニアを含む水溶液の処理方法 |
-
2015
- 2015-01-09 JP JP2015002973A patent/JP6524665B2/ja active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5085566A (ja) * | 1973-12-03 | 1975-07-10 | ||
JPH01262992A (ja) * | 1988-04-11 | 1989-10-19 | Osaka Gas Co Ltd | 廃水の処理方法 |
JPH0490826A (ja) * | 1990-08-01 | 1992-03-24 | Agency Of Ind Science & Technol | 排ガス浄化方法 |
JPH08276194A (ja) * | 1995-04-07 | 1996-10-22 | Nippon Shokubai Co Ltd | 廃水の処理方法 |
JP2000117272A (ja) * | 1998-10-16 | 2000-04-25 | Osaka Gas Co Ltd | 廃水の処理方法 |
JP2001149958A (ja) * | 1999-12-01 | 2001-06-05 | Cataler Corp | 水処理方法 |
JP2008207102A (ja) * | 2007-02-27 | 2008-09-11 | Nippon Shokubai Co Ltd | 排水の処理方法 |
JP2010167368A (ja) * | 2008-12-22 | 2010-08-05 | Panasonic Corp | アンモニアを含む水溶液の処理方法 |
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