[go: up one dir, main page]

JPS5520666A - Sludge recovery method - Google Patents

Sludge recovery method

Info

Publication number
JPS5520666A
JPS5520666A JP9429778A JP9429778A JPS5520666A JP S5520666 A JPS5520666 A JP S5520666A JP 9429778 A JP9429778 A JP 9429778A JP 9429778 A JP9429778 A JP 9429778A JP S5520666 A JPS5520666 A JP S5520666A
Authority
JP
Japan
Prior art keywords
tank
coprecipitation
adjusted
waste water
dye
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
JP9429778A
Other languages
Japanese (ja)
Inventor
Kenji Yamaguchi
Takashige Oka
Hitohiro Mochizuki
Masanori Shimizu
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.)
Gunze Ltd
Original Assignee
Gunze 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 Gunze Ltd filed Critical Gunze Ltd
Priority to JP9429778A priority Critical patent/JPS5520666A/en
Publication of JPS5520666A publication Critical patent/JPS5520666A/en
Pending legal-status Critical Current

Links

Classifications

    • Y02W30/54—

Landscapes

  • Treatment Of Sludge (AREA)
  • Manufacture Of Iron (AREA)

Abstract

PURPOSE:To recover iron salt from dye waste water sludge to be reusable, by oxidizing the coprecipitation of specific dye and trivalent iron with hypochlorite, dephosphating, condensing and treating with strong acid. CONSTITUTION:The coprecipitation (complex salt) of reactive dye and trivalent iron containing phthalocyanine metal complex separated from a waste water tank 2 in a dye waste water treating process consisting of oxidation tank 1, precipitation tanks 2, 4, etc. is introduced into a discoloration tank 6, and pH is adjusted to 7 by adding NaOH, and this coprecipitation is oxidized and discolored by hypochlorite Na. Then, pH is adjusted to 10 in a dephosphorization tank 7, and phosphorous is separated and removed from the coprecipitation after agitating for a certain period of time. After condensing the coprecipitation, pH is adjusted to 8 to 10, and iron salt is dissolved and regenerated by strong acid such as sulfuric acid in a reproducing tank 9, together with the sludge from said precipitation tank 4. The recovered iron salt is recycled to be used as catalyst and agglutinant by the Fenton reaction.
JP9429778A 1978-07-31 1978-07-31 Sludge recovery method Pending JPS5520666A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9429778A JPS5520666A (en) 1978-07-31 1978-07-31 Sludge recovery method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9429778A JPS5520666A (en) 1978-07-31 1978-07-31 Sludge recovery method

Publications (1)

Publication Number Publication Date
JPS5520666A true JPS5520666A (en) 1980-02-14

Family

ID=14106325

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9429778A Pending JPS5520666A (en) 1978-07-31 1978-07-31 Sludge recovery method

Country Status (1)

Country Link
JP (1) JPS5520666A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992012935A1 (en) * 1989-12-08 1992-08-06 Mineral Process Licensing Corporation B.V. Iron-nickel catalyst for hypochlorite removal from waste stream effluents
KR20010049330A (en) * 1999-05-06 2001-06-15 프란칼라 피그먼츠 Process for removing a soluble metal contained in acidic and/or basic effluents originating from organic syntheses
KR100583682B1 (en) 2006-02-15 2006-06-12 주식회사 도화종합기술공사 Sludge removal and recycling equipment for water tanks
CN100404435C (en) * 2006-08-30 2008-07-23 华东理工大学 A kind of wastewater treatment method with recyclable oxidation reaction catalyst
CN102976511A (en) * 2012-11-05 2013-03-20 开滦（集团）有限责任公司 Coking wastewater membrane filtration concentrate recycle method
CN103252340A (en) * 2013-05-17 2013-08-21 广西大学 Resource utilization method of Fenton iron sludge
CN103755065A (en) * 2013-12-31 2014-04-30 浙江大学 Method for reducing COD (Chemical Oxygen Demand) of tebuconazole industrial wastewater
CN105668913A (en) * 2015-07-24 2016-06-15 德州蓝德再生资源有限公司 High-effective advanced oxidation treatment device and treatment method for garbage concentrated liquid
CN108726732A (en) * 2018-07-11 2018-11-02 清华大学深圳研究生院 Remove the processing system and method for heavy metal in waste water

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992012935A1 (en) * 1989-12-08 1992-08-06 Mineral Process Licensing Corporation B.V. Iron-nickel catalyst for hypochlorite removal from waste stream effluents
KR20010049330A (en) * 1999-05-06 2001-06-15 프란칼라 피그먼츠 Process for removing a soluble metal contained in acidic and/or basic effluents originating from organic syntheses
KR100583682B1 (en) 2006-02-15 2006-06-12 주식회사 도화종합기술공사 Sludge removal and recycling equipment for water tanks
CN100404435C (en) * 2006-08-30 2008-07-23 华东理工大学 A kind of wastewater treatment method with recyclable oxidation reaction catalyst
CN102976511A (en) * 2012-11-05 2013-03-20 开滦（集团）有限责任公司 Coking wastewater membrane filtration concentrate recycle method
CN103252340A (en) * 2013-05-17 2013-08-21 广西大学 Resource utilization method of Fenton iron sludge
CN103252340B (en) * 2013-05-17 2015-04-22 广西大学 Resource utilization method of Fenton iron sludge
CN103755065A (en) * 2013-12-31 2014-04-30 浙江大学 Method for reducing COD (Chemical Oxygen Demand) of tebuconazole industrial wastewater
CN103755065B (en) * 2013-12-31 2015-06-17 浙江大学 Method for reducing COD (Chemical Oxygen Demand) of tebuconazole industrial wastewater
CN105668913A (en) * 2015-07-24 2016-06-15 德州蓝德再生资源有限公司 High-effective advanced oxidation treatment device and treatment method for garbage concentrated liquid
CN108726732A (en) * 2018-07-11 2018-11-02 清华大学深圳研究生院 Remove the processing system and method for heavy metal in waste water

Similar Documents

Publication Publication Date Title
US4318788A (en) Chromate recovery process
JPS5520666A (en) Sludge recovery method
JPS60191021A (en) Collection of uranium
GB1521405A (en) Method of recovering values contained in solid waste of chromic anhydride production
GB1502775A (en) Removal of arsenic from aqueous effluents
DE69412728D1 (en) TANNING WASTE WATER TREATMENT AND SUSPENSIONS FOR CHROME REMOVAL AND RECOVERY
JPS56100105A (en) Recovering and treating method for waste hydrochloric acid
US3816593A (en) Method of regenerating waste pickle liquor
JPS5834195B2 (en) Method for removing arsenic and silicic acid contained in industrial wastewater
JPS5520665A (en) Dye waste water treating method
US3975270A (en) Process for recovering usable olive-processing liquor from olive-processing waste solution
GB1347292A (en) Waste pickle liquor
JPS5581782A (en) Treatment method for flue gas desulfurization waste water
JPS5534136A (en) Treatment method of organic waste water
JPS5539282A (en) Organic waste water treating method
US2720472A (en) Method of pickling iron and recovering pickling agent
JPS55142590A (en) Treating method of water containing hydrazine
JPS54156345A (en) Purification of metal plating waste water
JPS5554088A (en) Treatment method of chemical washing waste water
ES469736A1 (en) Method for decontaminating the aqueous effluents
FR2431996A1 (en) Electrolytically removing chromium from aq. effluent - followed by flocculation and decanting stages
ES480302A1 (en) A method of purifying a substance by the selective alkaline carbonate leaching of said substance to remove uranium therefrom.
SU962213A1 (en) Method for recovering and regenerating chromium from effluents of leather-making factories
SU856543A1 (en) Method of regeneration of strong-acidic cationic exchanger
CA1213561A (en) Chrome recovery from ferric chromic hydroxide by oxidation to dichromate

Legal Events

Date Code Title Description
A521 Written amendment

Effective date: 20040119

Free format text: JAPANESE INTERMEDIATE CODE: A523

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20040119

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20070710

A601 Written request for extension of time

Effective date: 20071009

Free format text: JAPANESE INTERMEDIATE CODE: A601

A602 Written permission of extension of time

Effective date: 20071119

Free format text: JAPANESE INTERMEDIATE CODE: A602

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080109

A131 Notification of reasons for refusal

Effective date: 20080507

Free format text: JAPANESE INTERMEDIATE CODE: A131

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20080806

A602 Written permission of extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A602

Effective date: 20080912

A01 Written decision to grant a patent or to grant a registration (utility model)

Effective date: 20090203

Free format text: JAPANESE INTERMEDIATE CODE: A01

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Effective date: 20090512

Free format text: JAPANESE INTERMEDIATE CODE: A01

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20090611

A72 Notification of change in name of applicant

Effective date: 20090611

Free format text: JAPANESE INTERMEDIATE CODE: A721

R150 Certificate of patent (=grant) or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 3

Free format text: PAYMENT UNTIL: 20120710

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 3

Free format text: PAYMENT UNTIL: 20120710

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 4

Free format text: PAYMENT UNTIL: 20130710

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250