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 treatmentInfo
- 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
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
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)
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 |
-
1977
- 1977-12-21 JP JP15286977A patent/JPS5485551A/en active Granted
Cited By (1)
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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