JPS5581786A - Treatment method for waste water - Google Patents

Treatment method for waste water

Info

Publication number
JPS5581786A
JPS5581786A JP15591778A JP15591778A JPS5581786A JP S5581786 A JPS5581786 A JP S5581786A JP 15591778 A JP15591778 A JP 15591778A JP 15591778 A JP15591778 A JP 15591778A JP S5581786 A JPS5581786 A JP S5581786A
Authority
JP
Japan
Prior art keywords
waste water
water
catalyst
pipe
pressure
Prior art date
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.)
Granted
Application number
JP15591778A
Other languages
Japanese (ja)
Other versions
JPS5742391B2 (en
Inventor
Naomichi Kakihara
Yoshiaki Harada
Norio Joden
Kenichi Yamazaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Osaka Gas Co Ltd
Original Assignee
Osaka Gas Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Osaka Gas Co Ltd filed Critical Osaka Gas Co Ltd
Priority to JP15591778A priority Critical patent/JPS5581786A/en
Priority to GB7942262A priority patent/GB2043045B/en
Priority to FR7930793A priority patent/FR2444008A1/en
Priority to NL7909090A priority patent/NL190699C/en
Priority to DE19792950710 priority patent/DE2950710C2/en
Publication of JPS5581786A publication Critical patent/JPS5581786A/en
Publication of JPS5742391B2 publication Critical patent/JPS5742391B2/ja
Granted legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Landscapes

  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

PURPOSE: To prevent the deterioration of decomposition efficiency and catalyst and damage to reactor and water exhaust pipe by designating pH of waste water and oxidized water in the treatment of NH3-containing waste water by a wet oxidation method using a catalyst such as Fe-Ni(compound), etc., at specific temperature and pressure.
CONSTITUTION: An NH3-containing waste water of pH 8W11.5, preferably 9W11, is pressurized through the pipe 2 from the tank 1 by the pump 3 and then heat exchanged in the heat exchanger 5. Then, it is mixed with the O2-containing gas 10 and then introduced into the reacting tower 12 packed with a catalyst, e.g., Fe-Ni-Co(compound), etc., where the temperature of the waste water is kept at 100W370°C and the amount of O2 is also kept at a level 1W1.5 times a theoretical amount necessary for decomposing NH3 or organics(or inorganics) present in waste water. Also, an alkali solution from the storage tank 21 is supplied through the pump 23 to the reacting tower 21 so as to regulate the pH of the treated water to approx. 5W8. On the other hand, the treated water 13 is subjected to the vaporliquid separation 14 and the treated water 15 is sent to the humidifier 9. And, the gas 19 is heat exchanged and then reduced its pressure to the atmospheric pressure for exhaustion from the pipe 20.
COPYRIGHT: (C)1980,JPO&Japio
JP15591778A 1978-12-15 1978-12-15 Treatment method for waste water Granted JPS5581786A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP15591778A JPS5581786A (en) 1978-12-15 1978-12-15 Treatment method for waste water
GB7942262A GB2043045B (en) 1978-12-15 1979-12-07 Process for treating ammonia-containing waste water
FR7930793A FR2444008A1 (en) 1978-12-15 1979-12-14 PROCESS FOR TREATING AMMONIA-CONTAINING WASTE WATER USING AN OXIDATION REACTION
NL7909090A NL190699C (en) 1978-12-15 1979-12-17 Waste water treatment method.
DE19792950710 DE2950710C2 (en) 1978-12-15 1979-12-17 Process for treating waste water by wet oxidation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15591778A JPS5581786A (en) 1978-12-15 1978-12-15 Treatment method for waste water

Publications (2)

Publication Number Publication Date
JPS5581786A true JPS5581786A (en) 1980-06-20
JPS5742391B2 JPS5742391B2 (en) 1982-09-08

Family

ID=15616327

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15591778A Granted JPS5581786A (en) 1978-12-15 1978-12-15 Treatment method for waste water

Country Status (1)

Country Link
JP (1) JPS5581786A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4699720A (en) 1985-03-12 1987-10-13 Osaka Gas Company Limited Process for treating waste water by wet oxidations

Also Published As

Publication number Publication date
JPS5742391B2 (en) 1982-09-08

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