JPS5756093A - Biochemical treatment of organic waste water - Google Patents

Biochemical treatment of organic waste water

Info

Publication number
JPS5756093A
JPS5756093A JP55130453A JP13045380A JPS5756093A JP S5756093 A JPS5756093 A JP S5756093A JP 55130453 A JP55130453 A JP 55130453A JP 13045380 A JP13045380 A JP 13045380A JP S5756093 A JPS5756093 A JP S5756093A
Authority
JP
Japan
Prior art keywords
denitrifying
sludge
mixed
concd
flowed
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
JP55130453A
Other languages
Japanese (ja)
Other versions
JPS5845920B2 (en
Inventor
Katsuyuki 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.)
Ebara Corp
Original Assignee
Ebara Infilco 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 Ebara Infilco Co Ltd filed Critical Ebara Infilco Co Ltd
Priority to JP55130453A priority Critical patent/JPS5845920B2/en
Publication of JPS5756093A publication Critical patent/JPS5756093A/en
Publication of JPS5845920B2 publication Critical patent/JPS5845920B2/en
Expired 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

  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Activated Sludge Processes (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
  • Treatment Of Sludge (AREA)

Abstract

PURPOSE: To perform treatment efficiently and inexpensively by subjecting org. waste liquid to biological nitrifying and denitrifying treatment, and adding flocculants of iron type, aluminum type, etc. to the mixed slurries of the effluent thereof and excess sludge.
CONSTITUTION: Skimmed crude night soil 31 is flowed into a biological nitrifying and denitrifying process 32, and the BOD components in the night soil 31 are treated as org. carbon sources for the purpose of denitrifying bacteria, whereby the BOD components and nitrogen components are removed. Part of the outflow slurry 39 from the 2nd denitrifying tank 35 is flowed into a sludge concentrator 40 where concd. separating water 42 is mixed with the remaining part of the slurry 39 and is flowed as mixed slurries 43 into an agitating tank 44. After flocculants 45 are added to the slurries in the tank 44, they are separated to supernatant 47 and concd. sludge 48 with a thickener 46. The concd. sludge is separated to dehydration separating water 50 and dehydrated cake 51 with a filter press 49. The supernatant 47 is discharged as mixed water 52 with the separating water 50 to the outside of the system.
COPYRIGHT: (C)1982,JPO&Japio
JP55130453A 1980-09-19 1980-09-19 Biochemical treatment method for organic waste liquid Expired JPS5845920B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55130453A JPS5845920B2 (en) 1980-09-19 1980-09-19 Biochemical treatment method for organic waste liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55130453A JPS5845920B2 (en) 1980-09-19 1980-09-19 Biochemical treatment method for organic waste liquid

Publications (2)

Publication Number Publication Date
JPS5756093A true JPS5756093A (en) 1982-04-03
JPS5845920B2 JPS5845920B2 (en) 1983-10-13

Family

ID=15034590

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55130453A Expired JPS5845920B2 (en) 1980-09-19 1980-09-19 Biochemical treatment method for organic waste liquid

Country Status (1)

Country Link
JP (1) JPS5845920B2 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4924385A (en) * 1987-10-26 1990-05-08 Casio Computer Co., Ltd. Method of detecting types of parts constituting a larger group of parts
US4975835A (en) * 1987-10-30 1990-12-04 Casio Computer Co., Ltd. Variable length data processing apparatus for consecutively processing variable-length data responsive to one instruction
US5050101A (en) * 1988-11-29 1991-09-17 Casio Computer Co., Ltd. Printing apparatus
US5115490A (en) * 1988-07-15 1992-05-19 Casio Computer Co., Ltd. Variable length data processing apparatus with delimiter location-based address table
US5202984A (en) * 1988-07-14 1993-04-13 Casio Computer Co., Ltd. Apparatus and method for updating transaction file
US5214764A (en) * 1988-07-15 1993-05-25 Casio Computer Co., Ltd. Data processing apparatus for operating on variable-length data delimited by delimiter codes
US5283895A (en) * 1988-07-14 1994-02-01 Casio Computer Co., Ltd. Apparatus and method for processing data corresponding to word labels
US5355476A (en) * 1990-12-29 1994-10-11 Casio Computer Co., Ltd. File update apparatus for generating a matrix representing a subset of files and the update correspondence between directories and files
US5398338A (en) * 1990-06-29 1995-03-14 Casio Computer Co., Ltd. Record retrieval method using key bondary value table and condition valid status table
US5500932A (en) * 1992-05-29 1996-03-19 Casio Computer Co., Ltd. Slip output apparatus
US5526518A (en) * 1988-07-14 1996-06-11 Casio Computer Co., Ltd. Data processing apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6030465A (en) * 1983-07-28 1985-02-16 Hidetoshi Kakurai Diesel engine fuel system
JPS6137464U (en) * 1984-08-09 1986-03-08 株式会社ボッシュオートモーティブ システム Overflow valve of distribution type fuel injection pump

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4915259A (en) * 1972-06-01 1974-02-09
JPS4928161A (en) * 1972-07-17 1974-03-13

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4915259A (en) * 1972-06-01 1974-02-09
JPS4928161A (en) * 1972-07-17 1974-03-13

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4924385A (en) * 1987-10-26 1990-05-08 Casio Computer Co., Ltd. Method of detecting types of parts constituting a larger group of parts
US4975835A (en) * 1987-10-30 1990-12-04 Casio Computer Co., Ltd. Variable length data processing apparatus for consecutively processing variable-length data responsive to one instruction
US5202984A (en) * 1988-07-14 1993-04-13 Casio Computer Co., Ltd. Apparatus and method for updating transaction file
US5283895A (en) * 1988-07-14 1994-02-01 Casio Computer Co., Ltd. Apparatus and method for processing data corresponding to word labels
US5526518A (en) * 1988-07-14 1996-06-11 Casio Computer Co., Ltd. Data processing apparatus
US5115490A (en) * 1988-07-15 1992-05-19 Casio Computer Co., Ltd. Variable length data processing apparatus with delimiter location-based address table
US5214764A (en) * 1988-07-15 1993-05-25 Casio Computer Co., Ltd. Data processing apparatus for operating on variable-length data delimited by delimiter codes
US5050101A (en) * 1988-11-29 1991-09-17 Casio Computer Co., Ltd. Printing apparatus
US5398338A (en) * 1990-06-29 1995-03-14 Casio Computer Co., Ltd. Record retrieval method using key bondary value table and condition valid status table
US5355476A (en) * 1990-12-29 1994-10-11 Casio Computer Co., Ltd. File update apparatus for generating a matrix representing a subset of files and the update correspondence between directories and files
US5500932A (en) * 1992-05-29 1996-03-19 Casio Computer Co., Ltd. Slip output apparatus

Also Published As

Publication number Publication date
JPS5845920B2 (en) 1983-10-13

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