JPS5547181A - Wet type treatment of waste water from waste gas desulfurization - Google Patents

Wet type treatment of waste water from waste gas desulfurization

Info

Publication number
JPS5547181A
JPS5547181A JP10595678A JP10595678A JPS5547181A JP S5547181 A JPS5547181 A JP S5547181A JP 10595678 A JP10595678 A JP 10595678A JP 10595678 A JP10595678 A JP 10595678A JP S5547181 A JPS5547181 A JP S5547181A
Authority
JP
Japan
Prior art keywords
waste water
ions
dithionate
treatment
gas desulfurization
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
JP10595678A
Other languages
Japanese (ja)
Other versions
JPS6232995B2 (en
Inventor
Koichi Shigeta
Yoshio Hamao
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.)
IHI Corp
Original Assignee
IHI 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 IHI Corp filed Critical IHI Corp
Priority to JP10595678A priority Critical patent/JPS5547181A/en
Publication of JPS5547181A publication Critical patent/JPS5547181A/en
Publication of JPS6232995B2 publication Critical patent/JPS6232995B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Removal Of Specific Substances (AREA)
  • Treating Waste Gases (AREA)

Abstract

PURPOSE: To completely remove dithionate ions conventionally removable only by use of thermal decomposition requiring a large quantity of heat, aluminum containing coagulant and an excessive amount of alkali are used together to produce coagulated precipitate for removal.
CONSTITUTION: In treatment of waste water containing dithionate ion discharged from limestone-gypsum waste gas desulfurization process, the waste water is subjected to an alkali treatment and then filtered, thereby removing SS and heavy metals such as Fe, Mn, Al, etc. as filtered coagulated precipitate. In this stage of treatment, the waste water contains S2O6 -2 ions of a thousand and several hundreds ppm, to which is added an inorganic coagulant containing aluminum and the water is made to pH 10 or greater by adding alkali agent. This produces hardly soluble hydrated aluminate which adsorbs dithionate ions and settles as precipitate to be removed. As a result, the content of dithionate ions in the waste water falls to 10ppm or less.
COPYRIGHT: (C)1980,JPO&Japio
JP10595678A 1978-08-30 1978-08-30 Wet type treatment of waste water from waste gas desulfurization Granted JPS5547181A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10595678A JPS5547181A (en) 1978-08-30 1978-08-30 Wet type treatment of waste water from waste gas desulfurization

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10595678A JPS5547181A (en) 1978-08-30 1978-08-30 Wet type treatment of waste water from waste gas desulfurization

Publications (2)

Publication Number Publication Date
JPS5547181A true JPS5547181A (en) 1980-04-03
JPS6232995B2 JPS6232995B2 (en) 1987-07-17

Family

ID=14421262

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10595678A Granted JPS5547181A (en) 1978-08-30 1978-08-30 Wet type treatment of waste water from waste gas desulfurization

Country Status (1)

Country Link
JP (1) JPS5547181A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04131232U (en) * 1991-05-27 1992-12-02 松下電工株式会社 Bathtub support structure
CN100450943C (en) * 2006-12-31 2009-01-14 湖南华迪电力环保工程技术有限公司 Method and system unit for flue gas desulfurization and wastewater treatment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04131232U (en) * 1991-05-27 1992-12-02 松下電工株式会社 Bathtub support structure
CN100450943C (en) * 2006-12-31 2009-01-14 湖南华迪电力环保工程技术有限公司 Method and system unit for flue gas desulfurization and wastewater treatment

Also Published As

Publication number Publication date
JPS6232995B2 (en) 1987-07-17

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