JPS5485551A - Method of treating waste water containing dithionic acid and ammonia by way of biological treatment - Google Patents

Method of treating waste water containing dithionic acid and ammonia by way of biological treatment

Info

Publication number
JPS5485551A
JPS5485551A JP15286977A JP15286977A JPS5485551A JP S5485551 A JPS5485551 A JP S5485551A JP 15286977 A JP15286977 A JP 15286977A JP 15286977 A JP15286977 A JP 15286977A JP S5485551 A JPS5485551 A JP S5485551A
Authority
JP
Japan
Prior art keywords
ammonia
waste water
sulfuric
acid
dithionic acid
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
JP15286977A
Other languages
Japanese (ja)
Other versions
JPS5639960B2 (en
Inventor
Kiyoshi Sugata
Ryohei Ueda
Tsuyoshi Miki
Kazuo Fukunaga
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP15286977A priority Critical patent/JPS5485551A/en
Publication of JPS5485551A publication Critical patent/JPS5485551A/en
Publication of JPS5639960B2 publication Critical patent/JPS5639960B2/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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Landscapes

  • Activated Sludge Processes (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

PURPOSE: To provide a method of treating waste water containing dithionic acid and ammonia by way of biological treatment, which comprises the steps of cultivating activated sludge containing thiocyanogen as main nutritive source under aerobic condition, then introducing waste water into the activated sludge, and thus decomposing dithionic acid and ammonia contained in waste water simultaneously by way of oxidation.
CONSTITUTION: At first, activated sludge (containing sulfuric bacteria such as thiobacillus-thiopulse, thiobacillus-neapolitanis, thiobacillus-novellous) containing thiocyanogen as main nutritive source is cultivated under aerobic condition. When the thiocyanogen contained in sludge is exidized to sulfuric ions and nitric ions, amount of nitric bacteria begins to be increased in addition to the above-mentioned sulfuric bacteria. Under such circumstances, when waste water containing dithionic acid and ammonia is introduced into the activated sludge in which sulfuric and nitric bacteria coexist, dithionic acid and ammonia are hydroxidated respectively to sulfuric acid and nitric acid.
COPYRIGHT: (C)1979,JPO&Japio
JP15286977A 1977-12-21 1977-12-21 Method of treating waste water containing dithionic acid and ammonia by way of biological treatment Granted JPS5485551A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15286977A JPS5485551A (en) 1977-12-21 1977-12-21 Method of treating waste water containing dithionic acid and ammonia by way of biological treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15286977A JPS5485551A (en) 1977-12-21 1977-12-21 Method of treating waste water containing dithionic acid and ammonia by way of biological treatment

Publications (2)

Publication Number Publication Date
JPS5485551A true JPS5485551A (en) 1979-07-07
JPS5639960B2 JPS5639960B2 (en) 1981-09-17

Family

ID=15549888

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15286977A Granted JPS5485551A (en) 1977-12-21 1977-12-21 Method of treating waste water containing dithionic acid and ammonia by way of biological treatment

Country Status (1)

Country Link
JP (1) JPS5485551A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04506629A (en) * 1990-04-12 1992-11-19 パキ・ベー・ブイ Treatment method for water containing sulfur compounds

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04506629A (en) * 1990-04-12 1992-11-19 パキ・ベー・ブイ Treatment method for water containing sulfur compounds

Also Published As

Publication number Publication date
JPS5639960B2 (en) 1981-09-17

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