JPS55106591A - Method of treating coke-oven gas desulfurization waste liquid - Google Patents

Method of treating coke-oven gas desulfurization waste liquid

Info

Publication number
JPS55106591A
JPS55106591A JP1436179A JP1436179A JPS55106591A JP S55106591 A JPS55106591 A JP S55106591A JP 1436179 A JP1436179 A JP 1436179A JP 1436179 A JP1436179 A JP 1436179A JP S55106591 A JPS55106591 A JP S55106591A
Authority
JP
Japan
Prior art keywords
waste liquid
liquid
separated
gas
water
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
JP1436179A
Other languages
Japanese (ja)
Inventor
Yuzo Sakurai
Teruichiro Matsumura
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.)
Toray Industries Inc
Original Assignee
Toray Industries 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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP1436179A priority Critical patent/JPS55106591A/en
Publication of JPS55106591A publication Critical patent/JPS55106591A/en
Pending legal-status Critical Current

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  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

PURPOSE: To recover high-purity ammonium sulfate and decrease COD and NH4-H in drained water, by adding Cu (compound) and ammonia water to a coke-oven gas desulfurization waste liquid so that the copper concentration becomes a prescribed value and by causing wet oxidation under a limited condition and concentrating a reaction liquid separated from a gas.
CONSTITUTION: Cu (compound) 4 and NH35 are added to a coke-oven gas desulfurization waste liquid 1 and diluting water 2 in a storage vessel 3 so that the copper concentration of the waste liquid becomes 0.1W50ppm. The pressure of the waste liquid is raised by a boosting pump 6. After a gas 8 containing O2 is compressed at 7 and introduced into the waste liquid, the liquid is conducted to a wet oxidation column 9. Wet oxidation is caused by the O2-containing gas at a temperature of 150°C or more while a portion of water is kept liquid. The waste liquid is separated from a gas at 10. The exhaust gas is washed at 11 and then released at 12. The separated solution is introduced into a crystallization vessel 13 and heated to remove moisture 14. The concentrated liquid is conducted to a separator 15 so that drained water 18 is separated. Ammonium sulfate separated from the liquid is dried at 16 at that high-purity ammonium sulfate 17 is recovered.
COPYRIGHT: (C)1980,JPO&Japio
JP1436179A 1979-02-13 1979-02-13 Method of treating coke-oven gas desulfurization waste liquid Pending JPS55106591A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1436179A JPS55106591A (en) 1979-02-13 1979-02-13 Method of treating coke-oven gas desulfurization waste liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1436179A JPS55106591A (en) 1979-02-13 1979-02-13 Method of treating coke-oven gas desulfurization waste liquid

Publications (1)

Publication Number Publication Date
JPS55106591A true JPS55106591A (en) 1980-08-15

Family

ID=11858915

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1436179A Pending JPS55106591A (en) 1979-02-13 1979-02-13 Method of treating coke-oven gas desulfurization waste liquid

Country Status (1)

Country Link
JP (1) JPS55106591A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015047580A (en) * 2013-09-03 2015-03-16 大阪ガスエンジニアリング株式会社 Treatment equipment and treatment method for cyanogen-containing solution and method for producing solution having reduced cyanogen ions by the method
CN105174588A (en) * 2015-10-19 2015-12-23 双良节能***股份有限公司 Coking industry desulfurization waste water zero discharge treatment system
CN113526647A (en) * 2021-09-14 2021-10-22 北京惠宇乐邦环保科技有限公司 Treatment method of sulfur-containing wastewater

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5172146A (en) * 1974-12-19 1976-06-22 Sumitomo Chemical Co Haiekino shorihoho

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5172146A (en) * 1974-12-19 1976-06-22 Sumitomo Chemical Co Haiekino shorihoho

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015047580A (en) * 2013-09-03 2015-03-16 大阪ガスエンジニアリング株式会社 Treatment equipment and treatment method for cyanogen-containing solution and method for producing solution having reduced cyanogen ions by the method
CN105174588A (en) * 2015-10-19 2015-12-23 双良节能***股份有限公司 Coking industry desulfurization waste water zero discharge treatment system
CN113526647A (en) * 2021-09-14 2021-10-22 北京惠宇乐邦环保科技有限公司 Treatment method of sulfur-containing wastewater

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