JPS54121279A - Treatment of gas absorption waste water in wet type alkali method - Google Patents

Treatment of gas absorption waste water in wet type alkali method

Info

Publication number
JPS54121279A
JPS54121279A JP2953678A JP2953678A JPS54121279A JP S54121279 A JPS54121279 A JP S54121279A JP 2953678 A JP2953678 A JP 2953678A JP 2953678 A JP2953678 A JP 2953678A JP S54121279 A JPS54121279 A JP S54121279A
Authority
JP
Japan
Prior art keywords
waste water
tank
electrodes
gas absorption
treatment
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
JP2953678A
Other languages
Japanese (ja)
Inventor
Mitsuyuki Nishihara
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.)
Kubota Corp
Original Assignee
Kubota Corp
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 Kubota Corp filed Critical Kubota Corp
Priority to JP2953678A priority Critical patent/JPS54121279A/en
Publication of JPS54121279A publication Critical patent/JPS54121279A/en
Pending legal-status Critical Current

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  • Water Treatment By Electricity Or Magnetism (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

PURPOSE: To recover and reuse effective ingredients from waste water as well as perform the purification of waste water by a procedure in which gas absorption waste water is requlated in pH and subjected to coaqulation treatment using an iron coagulant, the coagulation is sedimented and removed, and then electrodes are inserted into the waste water to decompose COD and BOD components by nascent 0 gas.
CONSTITUTION: A certain amount of the gas absorption waste water 1 by the wet alkali method using NaOH, etc., is sent to the coaqulating reactor 4 in succession and its pH is requlated to 8 to 11 by an alkali and at the same time a certain amount of a coaqulant, e.g., iron sulfate, etc., is supplied to the waste water to cause a coagulating reaction with stirring. In the process, most suspended solids and harmful heavy metal compounds are coaqulated, then transferred gradually to the sedimentation tank 11, and lastly removed in the form of the flocs F. On the other hand, the supernatant of the tank 11 is flowed into the electrolytic bath 15 to perform electrolysis by the electrodes 16 provided for decomposing COD and BOD components by nascent O gas generated at the electrodes 16 portion. Part of the waste water treated electrolytically is sent back to the tanks 4 and 11 before the tank 15 by a circulating pump, and also the other part of waste water is flowed into the neutralization tank 18 to requlate its pH to neutral by the addition of an acid aqueous solution of hydrochloric acid, etc..
COPYRIGHT: (C)1979,JPO&Japio
JP2953678A 1978-03-14 1978-03-14 Treatment of gas absorption waste water in wet type alkali method Pending JPS54121279A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2953678A JPS54121279A (en) 1978-03-14 1978-03-14 Treatment of gas absorption waste water in wet type alkali method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2953678A JPS54121279A (en) 1978-03-14 1978-03-14 Treatment of gas absorption waste water in wet type alkali method

Publications (1)

Publication Number Publication Date
JPS54121279A true JPS54121279A (en) 1979-09-20

Family

ID=12278825

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2953678A Pending JPS54121279A (en) 1978-03-14 1978-03-14 Treatment of gas absorption waste water in wet type alkali method

Country Status (1)

Country Link
JP (1) JPS54121279A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4983257A (en) * 1972-12-19 1974-08-10
JPS5065049A (en) * 1973-10-13 1975-06-02

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4983257A (en) * 1972-12-19 1974-08-10
JPS5065049A (en) * 1973-10-13 1975-06-02

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