US20010007649A1 - Organic compound decomposing method - Google Patents

Organic compound decomposing method Download PDF

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Publication number
US20010007649A1
US20010007649A1 US09/757,503 US75750301A US2001007649A1 US 20010007649 A1 US20010007649 A1 US 20010007649A1 US 75750301 A US75750301 A US 75750301A US 2001007649 A1 US2001007649 A1 US 2001007649A1
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United States
Prior art keywords
organic compound
ascorbic acid
decomposition
decomposing
acid salt
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Abandoned
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US09/757,503
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English (en)
Inventor
Yasuhito Inagaki
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Sony Corp
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Sony Corp
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Filing date
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Assigned to SONY CORPORATION reassignment SONY CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: INAGAKI, YASUHITO
Publication of US20010007649A1 publication Critical patent/US20010007649A1/en
Priority to US10/413,140 priority Critical patent/US7049475B2/en
Abandoned legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
    • A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
    • A62D2101/20—Organic substances
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
    • A62D2101/20—Organic substances
    • A62D2101/22—Organic substances containing halogen
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
    • A62D2101/20—Organic substances
    • A62D2101/28—Organic substances containing oxygen, sulfur, selenium or tellurium, i.e. chalcogen

Definitions

  • the present invention relates to an organic compound decomposing method having a small load on an environment and with a high decomposition ratio and preferable composition amount.
  • the bio-remediation has a problem that the organic compound decomposition speed is slow and it is necessary to continuously supply nutriments for microbes until the organic compound decomposition is complete. There is also a problem that dead bodies of microbes remain after the organic compound decomposition is complete. Moreover, the method for decomposing organic compounds in water using supercritical water requires a large-scale facility and a plenty of energy and cannot be implemented in practice because of the low decomposition capability.
  • the organic compound decomposing method according to the present invention decomposes an organic compound using ascorbic acid and/or ascorbic acid salt together with oxygen.
  • Ascorbic acid and ascorbic acid salt is well known as vitamin C, available in the natural world, and not harmful. Accordingly, by using these, it is possible to decompose a harmful organic compound without giving a useless load on the environment.
  • the organic compound decomposition is significantly promoted by using the aforementioned substances together with oxygen. That is, this method provides a high decomposition efficiency and can be applied to decomposition of a large amount of organic compound. Moreover, the decomposition operation is quite simple without requiring any large-scale facility, large amount of energy or complicated management.
  • FIG. 1 shows components contained in an aqueous solution of bisphenol A before a treatment using L-sodium ascorbate.
  • FIG. 2 shows components contained in an aqueous solution of bisphenol A after a treatment using L-sodium ascorbate.
  • the organic compound decomposing method according to the present invention uses ascorbic acid and/or ascorbic acid salt together with oxygen applied to an organic compound to be treated.
  • an oxygen gas may be blown directly to the ascorbic acid and/or ascorbic acid salt and the organic compound.
  • ascorbic acid salt such as sodium salt.
  • the ascorbic acid and the ascorbic acid salt may be extracted from a natural material or synthesized. It should be noted that ascorbic acid extracted from a natural material may contain other components but they will not cause a particular problem.
  • the amounts of the ascorbic acid and the ascorbic acid salt to be added with respect to an organic compound differ depending on the amount of the organic compound and the decomposition efficiency required. However, it is preferable to be about 1/1000 to 1000 times of the amount of the organic compound and more preferably, about 1/100 to 100 times.
  • the oxygen used here may be an oxygen gas supplied from an oxygen cylinder, or may be the oxygen contained in the air, or may be oxygen contained in a solution. It should be noted that as the oxygen amount is increased, the decomposition efficiency and the decomposition amount of the organic compound are increased. Moreover, when oxygen is dissolved in a solution, for example, as the oxygen concentration is increased such as a saturated concentration, the decomposition efficiency and the decomposition amount of the organic compound are increased.
  • the temperature for the decomposition is preferable from about ⁇ 20°C. to 120°C. and more preferably, from about 0°C. to 60°C., and most preferably, from about 20° C. to 40°C.
  • the temperature exceeds 120°C., an enormous energy is required for decomposing the organic compound.
  • the temperature is below ⁇ 20°C., the decomposition speed is drastically lowered.
  • pH for the decomposition is preferably from about pH 4 to pH 11.
  • the organic compounds to be decomposed are not limited to particular compounds, but especially aromatic compounds can be decomposed easily such as nonylphenol, bisphenol A, dioxin, polychlorinated biphenyl, polybromobiphenyl, alkyl benzene, alkylbenzene derivative, alkylphenol, alkylphenol derivative, phthalate ester, benzophenone, benzophenone derivative, benzoic acid, halogenated benzene derivative, cresol, cresol derivative, aromatic amino acid (such as phenylalanine), agricultural chemicals containing the aromatic ring, resin containing the aromatic ring (such as polystyrene, ABS resin, PET, PC, phenol resin, epoxy resin, polyphenylene oxide, low molecular weight version of polyphenylene oxide, polyphenylene oxide derivative, and the like), dyes containing the aromatic ring, aromatic agent, and the like.
  • aromatic compounds can be decomposed easily such as nonylphenol, bisphenol A, dioxin, polychlorinated bi
  • the aforementioned organic compounds can be decomposed with a higher decomposition efficiency and a higher decomposition amount when exposed to the ascorbic acid and/or ascorbic acid salt and oxygen contained in water, i.e., via water, than when exposed directly to the ascorbic acid and/or ascorbic acid salt and oxygen.
  • the organic compounds in gas be dissolved in an aqueous solution when applied to the ascorbic acid and/or ascorbic acid salt together with oxygen.
  • the organic compounds are decomposed.
  • the organic compounds especially those having the aromatic ring can be decomposed.
  • the amount of the aforementioned substances to be added varies depending on the type and concentration of the organic compound to be decomposed and the temperature during the decomposition.
  • the amount to be added is preferably about 1/100 to 100 times with respect to the ascorbic acid and/or ascorbic acid salt and more preferably, from about 1/10 to 10 times.
  • the organic compound decomposing method according to the present invention enables to decompose harmful organic compounds contained in the domestic waste water, factory waste water, these waste water after disposal, the sea, rivers, soil, exhaust gas, waste, compost, and the like with a high decomposition efficiency and a high decomposition amount as well as with a low energy and a small load on the environment. Moreover, it becomes possible to decompose organic compounds containing the aromatic ring.
  • the present invention enables to promote the waste water disposal and changing of waste into compost, purify the soil and the atmosphere, thereby purifying the environment, contributing to the ecology of the earth.
  • the present invention provides a high decomposition efficiency and a high decomposition amount, it is possible to decompose a large amount of organic compounds.
  • the decomposition operation is quite simple, not requiring a large-scale facility, a large amount of energy, or a complicated management.
  • nonyl phenol ethylene oxide was added to be solved so as to have a concentration of 5 mM. It should be noted that the nonyl phenol ethylene oxide is one of the surface active agents. Next, this solution was added by L-sodium ascorbate with a concentration of 20 mM. Next, this solution was subjected to air bubbling for 6 hours. Here, the water temperature was set to 40°C. As a result, it has been found that 52% of the nonyl phenol ethylene oxide was decomposed.
  • dodecabromodiphenyl ether is dissolved in a hydrophilic organic solvent, to which a small amount water was added to obtain a concentration of 0.01 mM.
  • a hydrophilic organic solvent to which a small amount water was added to obtain a concentration of 0.01 mM.
  • L-sodium ascorbate and hydrogen peroxide solution to obtain a concentration of 0.01 mM.
  • this solution was subjected to air bubbling for 12 hours.
  • the water temperature was set to a room temperature. As a result, it has been found that 63% of the dodecabromodiphenyl ether was decomposed.
  • aqueous solution of diethyl phthalate was dissolved in a hydrophilic organic solvent, to which a small amount of water was added to obtain a concentration of 0.05 mM.
  • aqueous solution of diethyl phthalate was dissolved in a hydrophilic organic solvent, to which a small amount of water was added to obtain a concentration of 0.05 mM.
  • L-sodium ascorbate was added to obtain a concentration of 0.01 mM.
  • this solution was subjected to air bubbling for 6 hours while applying light radiation by a high-pressure mercury lamp to the solution.
  • the water temperature was set to a room temperature. As a result, it has been found that 84% of the aqueous solution of diethyl phthalate was decomposed.
  • L-sodium ascorbate and magnesium porphyrin were added to a colored dye waste water.
  • the L-sodium ascorbate was added to obtain a concentration of 20 ppm and the magnesium porphyrin was added to obtain a concentration of 1 ppm.
  • air bubbling was performed for 2 hours. As a result, decoloration of the dye waste water was promoted.
  • An organic compound was decomposed by using a subcritical water.
  • L-sodium ascorbate having a concentration of 1/10 with respect to the concentration of the organic compound was added. It should be noted that dissolved oxygen exists in the subcritical water. As a result, the decomposition speed of the organic compound was increased by twice.
  • the organic compound decomposing method according to the present invention enables to decompose organic compounds contained in domestic waste water, factor waste water, the remaining matters after treatment of these waste waters, in the sea, rivers, soil, exhaust gas, garbage, compost, and the like, with a high decomposition efficiency and a high decomposition amount as well as with a small load on the environment.
  • the present invention can also be applied to decomposition of a large amount of organic compounds. Furthermore, the decomposition operation is very simple, not requiring a large-scale facility, large amount of energy, or a complicated management.

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  • Business, Economics & Management (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing Compositions (AREA)
  • Processing Of Solid Wastes (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Treating Waste Gases (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
US09/757,503 2000-01-12 2001-01-11 Organic compound decomposing method Abandoned US20010007649A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/413,140 US7049475B2 (en) 2000-01-12 2003-04-15 Organic compound decomposing method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000006340A JP4552247B2 (ja) 2000-01-12 2000-01-12 芳香族環を有する有機化合物の分解方法
JPP2000-006340 2000-01-12

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US10/413,140 Continuation US7049475B2 (en) 2000-01-12 2003-04-15 Organic compound decomposing method

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US10/413,140 Expired - Fee Related US7049475B2 (en) 2000-01-12 2003-04-15 Organic compound decomposing method

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US (2) US20010007649A1 (de)
EP (1) EP1123720B1 (de)
JP (1) JP4552247B2 (de)
CN (1) CN1179768C (de)
DE (1) DE60111965T2 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120012823A1 (en) * 2009-02-17 2012-01-19 Sony Corporation Color imaging element and method of manufacturing the same, photosensor and method of manufacturing the same, photoelectric transducer and method of manufacturing the same, and electronic device
CN105561517A (zh) * 2015-12-16 2016-05-11 中华人民共和国陕西出入境检验检疫局 一种苏丹红ⅳ的降解方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104229974B (zh) * 2014-09-18 2016-09-07 浙江理工大学 一种快速处理有机废水的方法
CN108610346B (zh) * 2018-04-02 2020-06-02 杭州至重医药科技有限公司 一种光敏酞菁固体材料及其制备方法与应用

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JPH0550285A (ja) * 1991-07-18 1993-03-02 Matsushita Electric Ind Co Ltd 回路基板の酸素希薄型リフロー方法およびリフロー装置
JP3072535B2 (ja) * 1991-10-21 2000-07-31 株式会社林原生物化学研究所 ５−Ｏ−α−Ｄ−グルコピラノシル−Ｌ−アスコルビン酸とその製造方法並びに用途
DE4209180A1 (de) * 1992-03-20 1993-09-23 Schwarze Alois Arnold Verfahren zur beseitigung von schwermetallen aus waessrigen medien
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120012823A1 (en) * 2009-02-17 2012-01-19 Sony Corporation Color imaging element and method of manufacturing the same, photosensor and method of manufacturing the same, photoelectric transducer and method of manufacturing the same, and electronic device
US8952357B2 (en) * 2009-02-17 2015-02-10 Sony Corporation Cytochrome c552 color imaging element and method of manufacturing the same, cytochrome c552 photosensor and method of manufacturing the same, cytochrome c552 photoelectric transducer and method of manufacturing the same, and cytochrome c552 electronic device
CN105561517A (zh) * 2015-12-16 2016-05-11 中华人民共和国陕西出入境检验检疫局 一种苏丹红ⅳ的降解方法

Also Published As

Publication number Publication date
US7049475B2 (en) 2006-05-23
EP1123720A2 (de) 2001-08-16
CN1179768C (zh) 2004-12-15
EP1123720B1 (de) 2005-07-20
US20030205453A1 (en) 2003-11-06
DE60111965D1 (de) 2005-08-25
JP2001199905A (ja) 2001-07-24
JP4552247B2 (ja) 2010-09-29
CN1319442A (zh) 2001-10-31
EP1123720A3 (de) 2001-09-12
DE60111965T2 (de) 2006-05-24

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Effective date: 20001215

STCB Information on status: application discontinuation

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