JPS5756088A - Activated sludge treatment of acidic waste water containing acidic sulfite and sulfurous acid - Google Patents

Activated sludge treatment of acidic waste water containing acidic sulfite and sulfurous acid

Info

Publication number
JPS5756088A
JPS5756088A JP55130828A JP13082880A JPS5756088A JP S5756088 A JPS5756088 A JP S5756088A JP 55130828 A JP55130828 A JP 55130828A JP 13082880 A JP13082880 A JP 13082880A JP S5756088 A JPS5756088 A JP S5756088A
Authority
JP
Japan
Prior art keywords
acidic
waste water
contg
sulfite
activated sludge
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.)
Pending
Application number
JP55130828A
Other languages
Japanese (ja)
Inventor
Katsuro Watanabe
Akimitsu Kataoka
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.)
NAGAO SOUDA KK
Nagao Soda Co Ltd
Original Assignee
NAGAO SOUDA KK
Nagao Soda 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 NAGAO SOUDA KK, Nagao Soda Co Ltd filed Critical NAGAO SOUDA KK
Priority to JP55130828A priority Critical patent/JPS5756088A/en
Publication of JPS5756088A publication Critical patent/JPS5756088A/en
Pending 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)

Abstract

PURPOSE: To treat waste water contg. acidic salts, sulfurous acids, etc. efficiently by adding an alkali soln. contg. specific materials into the acidic waste water, converting the same to thiosulfate and/or sulfite then subjecting the same to activated sludge treatment.
CONSTITUTION: An alkali soln. contg. one or more kinds of the group consisting of sulfide, hydrosulfide, and polysulfide is added to the acidic waste water contg. acidic sulfite and/or sulfurous acids. Then, said components are converted to thiosulfate and/or sulfite, after which they are subjected to activated sludge treatment. Said method is also applicable to alkali solns. or alkali waste solns. contg. sulfides, hydrosulfides and polysulfides recovered or discharged from chemical plants generating hydrogen sulfied, sulfides, hydrosulfieds, etc. for petrochemistry, petroleum refining rayon, cellophane and barium salt production, etc.
COPYRIGHT: (C)1982,JPO&Japio
JP55130828A 1980-09-22 1980-09-22 Activated sludge treatment of acidic waste water containing acidic sulfite and sulfurous acid Pending JPS5756088A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55130828A JPS5756088A (en) 1980-09-22 1980-09-22 Activated sludge treatment of acidic waste water containing acidic sulfite and sulfurous acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55130828A JPS5756088A (en) 1980-09-22 1980-09-22 Activated sludge treatment of acidic waste water containing acidic sulfite and sulfurous acid

Publications (1)

Publication Number Publication Date
JPS5756088A true JPS5756088A (en) 1982-04-03

Family

ID=15043649

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55130828A Pending JPS5756088A (en) 1980-09-22 1980-09-22 Activated sludge treatment of acidic waste water containing acidic sulfite and sulfurous acid

Country Status (1)

Country Link
JP (1) JPS5756088A (en)

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