JPS56168888A - Method for purifying waste water by activated sludge process - Google Patents

Method for purifying waste water by activated sludge process

Info

Publication number
JPS56168888A
JPS56168888A JP7248080A JP7248080A JPS56168888A JP S56168888 A JPS56168888 A JP S56168888A JP 7248080 A JP7248080 A JP 7248080A JP 7248080 A JP7248080 A JP 7248080A JP S56168888 A JPS56168888 A JP S56168888A
Authority
JP
Japan
Prior art keywords
waste water
activated sludge
bod
sludge
separated
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
JP7248080A
Other languages
Japanese (ja)
Inventor
Koichi Hayashi
Hiroshi Imai
Keisuke Fukuda
Yasunobu Hirama
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.)
Ajinomoto Co Inc
Original Assignee
Ajinomoto Co Inc
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 Ajinomoto Co Inc filed Critical Ajinomoto Co Inc
Priority to JP7248080A priority Critical patent/JPS56168888A/en
Publication of JPS56168888A publication Critical patent/JPS56168888A/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 purify waste water easily and stably by an activated sludge process by charging excess sludge to the waste water, subjecting the waste water to the aeration treatment, and again treating the treated waste water separated from sludge by means of activated sludge.
CONSTITUTION: Excess sludge of 0.4W4kg BOD/kg MLSS.Day is charged as BOD load to the high BOD concn. waste water or polysaccharides-contg. waste water discharged from fermentation industry, milling industry, meat processing industry, etc. and the waste water is subjected to aeration treatment at pH around neutral and at about 20W35°C temps. Thence, the sludge is separated from the waste water by such means as addition of flocculants, after which the separated waste water is subjected to activated sludge treatment by a conventional method. Thereby, the BOD components which are low in the rate of purification by the activated sludge treatment alone is purified efficiently, and the BOD components of, for example, the waste water of oxidized starch production are removed by ≥90%.
COPYRIGHT: (C)1981,JPO&Japio
JP7248080A 1980-05-30 1980-05-30 Method for purifying waste water by activated sludge process Pending JPS56168888A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7248080A JPS56168888A (en) 1980-05-30 1980-05-30 Method for purifying waste water by activated sludge process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7248080A JPS56168888A (en) 1980-05-30 1980-05-30 Method for purifying waste water by activated sludge process

Publications (1)

Publication Number Publication Date
JPS56168888A true JPS56168888A (en) 1981-12-25

Family

ID=13490518

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7248080A Pending JPS56168888A (en) 1980-05-30 1980-05-30 Method for purifying waste water by activated sludge process

Country Status (1)

Country Link
JP (1) JPS56168888A (en)

Similar Documents

Publication Publication Date Title
PL335720A1 (en) Method of treating sludges for sewage treatment plants
FR2327965A1 (en) Dewatering activated sludge from effluent treatment - by acidifying, heating then separating the dehydrated sludge
ES8104973A1 (en) Process for the chemical removal of phosphorus compounds from waste water
ATE67162T1 (en) PROCESSES FOR THE CHEMICAL-PHYSICAL TREATMENT OF WASTEWATER.
JPS57159598A (en) Purification of organic waste water
JPS56168888A (en) Method for purifying waste water by activated sludge process
JPS551831A (en) Excess sludge treating method
GB1368806A (en) Treatment of industrial and domestic waste waters
EE200000125A (en) Process and equipment for biological treatment of waste water by activated sludge method
JPS5637088A (en) Treating method for effluent containing heavy metal complex salt
JPS5212762A (en) Method of treating waste water
JPS5799390A (en) Treatment of organic waste liquid
JPS5724693A (en) Disposal of organic waste water
ES2079316A1 (en) Integrated system for treating waste waters
JPS54123247A (en) Treatment of raw urine and clarification tank sludge
JPS57204298A (en) Dewatering method for highly-concentrated sludge
JPS5771699A (en) Treating method for organic waste liquid
JPS57167797A (en) Removing and recovering method for phosphorus in waste water
SU1171431A1 (en) Method of purifying waste water
JPS5771700A (en) Method for treatment of organic waste water
JPS5763197A (en) High degree treatment of organic sewage
SU709562A1 (en) Method of waste water purification from beryllium
JPS55116494A (en) Treating method for waste water
ES8305283A1 (en) Biological waste water treating method
KR840000436A (en) Treatment method of organic wastewater