JPS5599395A - Decoloring method for raw sewage treating water - Google Patents

Decoloring method for raw sewage treating water

Info

Publication number
JPS5599395A
JPS5599395A JP808779A JP808779A JPS5599395A JP S5599395 A JPS5599395 A JP S5599395A JP 808779 A JP808779 A JP 808779A JP 808779 A JP808779 A JP 808779A JP S5599395 A JPS5599395 A JP S5599395A
Authority
JP
Japan
Prior art keywords
vessel
water
sewage
liquid
air exposure
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
JP808779A
Other languages
Japanese (ja)
Inventor
Hitoshi Kitayama
Kiyotaro Iyasu
Fumie Moriba
Akio Matsumoto
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP808779A priority Critical patent/JPS5599395A/en
Publication of JPS5599395A publication Critical patent/JPS5599395A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To decolor the sewage treating water effectively and economically, by adding oxidizer to the one hand of dilution water at least adding at before and behind of air exposure vessel, at the time of separating solid from liquid at the precipitation vessel and decoloring the supernatant liquid after diluting the sewage with water and carrying out microorganism treatment in the air exposure vessel.
CONSTITUTION: Primary treating water obtained by aerobic digestion or anaerobic digestion after removing precipitate or dust etc. in raw sewage or sludge containing the sewage, is put in the air exposure vessel 2 with dilution water from the piping 1. Aerobic microorganism treatment is carried out in the vessel 2 and the above water is put in the precipitation vessel 4 and then, solid is separated from liquid. On this occasion, the water mixed the oxidizer, such as ozone etc., in the mixer 8, is used for the dilution water adding for the process at before and behind of the vessel 2. Supernatant liquid precipitated and removed the solid pollutant, such as Fe or Mn oxide etc., in the vessel 4, is oxidized by oxidizing agent, such as ozone etc., at the oxidizing apparatus 5 and organic coloring matter is decolored. Lastly, the above liquid is introduced in the sterilizing vessel 7 directly and is discharged after carrying out chlorine sterilizing treatment.
COPYRIGHT: (C)1980,JPO&Japio
JP808779A 1979-01-26 1979-01-26 Decoloring method for raw sewage treating water Pending JPS5599395A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP808779A JPS5599395A (en) 1979-01-26 1979-01-26 Decoloring method for raw sewage treating water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP808779A JPS5599395A (en) 1979-01-26 1979-01-26 Decoloring method for raw sewage treating water

Publications (1)

Publication Number Publication Date
JPS5599395A true JPS5599395A (en) 1980-07-29

Family

ID=11683533

Family Applications (1)

Application Number Title Priority Date Filing Date
JP808779A Pending JPS5599395A (en) 1979-01-26 1979-01-26 Decoloring method for raw sewage treating water

Country Status (1)

Country Link
JP (1) JPS5599395A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111573882A (en) * 2020-04-16 2020-08-25 中南大学 Process for deeply removing heavy metals in water body

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111573882A (en) * 2020-04-16 2020-08-25 中南大学 Process for deeply removing heavy metals in water body

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