JPS5759700A - Concentration and dewatering of organic sludge - Google Patents

Concentration and dewatering of organic sludge

Info

Publication number
JPS5759700A
JPS5759700A JP55133934A JP13393480A JPS5759700A JP S5759700 A JPS5759700 A JP S5759700A JP 55133934 A JP55133934 A JP 55133934A JP 13393480 A JP13393480 A JP 13393480A JP S5759700 A JPS5759700 A JP S5759700A
Authority
JP
Japan
Prior art keywords
sludge
floatation
dewatering
addition
hydrogen peroxide
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
JP55133934A
Other languages
Japanese (ja)
Inventor
Katsuyuki Kataoka
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.)
Ebara Corp
Original Assignee
Ebara Infilco 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 Ebara Infilco Co Ltd filed Critical Ebara Infilco Co Ltd
Priority to JP55133934A priority Critical patent/JPS5759700A/en
Publication of JPS5759700A publication Critical patent/JPS5759700A/en
Pending legal-status Critical Current

Links

Landscapes

  • Physical Water Treatments (AREA)
  • Treatment Of Sludge (AREA)

Abstract

PURPOSE: To perform efficient concentration and dewatering without using any reagent in a dewatering step, by adding a specified reagent to organic sludge, subjecting the sludge to floatation, and then mechanically dewatering the obtained scum.
CONSTITUTION: Excess active sludge 1 is subjected to floatation after addition of at least a ferrous flocculant, an oxidizing agent and an alkali. For instance, ferrous sulfate 2 and hydrogen peroxide 3 are added to the sludge, and the sludge is agitated for a few minutes and then neutralized at pH6W7 by the addition of an alkali 4 such as slaked lime or magnesium hydroxide. Thereafter, a nonionic or anionic polymer 5 is optionally added to the sludge in addition. The treated sludge is separated into floating scum 7 and floatation-separated water 8 in a floatation step 6. The floating scum 7 is introduced as such without the addition of any reagent into a filter press 9, and separated into dewatered cake 10 and cake-separated water 11. Said oxidizing agent may be ozone instead of hydrogen peroxide 3, or ozone may be used together with hydrogen peroxide.
COPYRIGHT: (C)1982,JPO&Japio
JP55133934A 1980-09-26 1980-09-26 Concentration and dewatering of organic sludge Pending JPS5759700A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55133934A JPS5759700A (en) 1980-09-26 1980-09-26 Concentration and dewatering of organic sludge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55133934A JPS5759700A (en) 1980-09-26 1980-09-26 Concentration and dewatering of organic sludge

Publications (1)

Publication Number Publication Date
JPS5759700A true JPS5759700A (en) 1982-04-10

Family

ID=15116482

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55133934A Pending JPS5759700A (en) 1980-09-26 1980-09-26 Concentration and dewatering of organic sludge

Country Status (1)

Country Link
JP (1) JPS5759700A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62197200A (en) * 1986-02-24 1987-08-31 Kurita Water Ind Ltd Method for concentrating organic sludge
ES2498615A1 (en) * 2014-05-22 2014-09-24 Cales De Pachs, S.A. Procedure for sanitizing sludge from edars and plant for this process (Machine-translation by Google Translate, not legally binding)
CN106348560A (en) * 2016-08-19 2017-01-25 陕西鼎益源投资有限公司 Ozone-hydroxyl free radical combined catalytic oxidation sludge conditioning method
CN108083502A (en) * 2017-12-27 2018-05-29 江苏开放大学 A kind of preprocess method of high concentration sulfate-aniline/nitrobenzene wastewater
WO2018227356A1 (en) * 2017-06-13 2018-12-20 Kemira Oyj Method for treating sludge
CN109851190A (en) * 2018-12-27 2019-06-07 广州市金龙峰环保设备工程股份有限公司 A kind of processing system and processing method of polluted bed mud desiccation
CN111547964A (en) * 2020-04-30 2020-08-18 中海石油(中国)有限公司天津分公司 Depolymerization treatment method of oil sludge containing hydrophobic association polymer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51128148A (en) * 1975-04-16 1976-11-08 Swift & Co Method of dehydrating waste water treating waste and its device
JPS51142856A (en) * 1975-06-03 1976-12-08 Asahi Chem Ind Co Ltd Floating,concentration and separation mehtod of active sludge
JPS5462655A (en) * 1977-10-26 1979-05-19 Mitsubishi Gas Chemical Co Method of treating sludge
JPS5579100A (en) * 1978-12-08 1980-06-14 Osaka Gas Co Ltd Treating method for sludge

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51128148A (en) * 1975-04-16 1976-11-08 Swift & Co Method of dehydrating waste water treating waste and its device
JPS51142856A (en) * 1975-06-03 1976-12-08 Asahi Chem Ind Co Ltd Floating,concentration and separation mehtod of active sludge
JPS5462655A (en) * 1977-10-26 1979-05-19 Mitsubishi Gas Chemical Co Method of treating sludge
JPS5579100A (en) * 1978-12-08 1980-06-14 Osaka Gas Co Ltd Treating method for sludge

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62197200A (en) * 1986-02-24 1987-08-31 Kurita Water Ind Ltd Method for concentrating organic sludge
JPH0630798B2 (en) * 1986-02-24 1994-04-27 栗田工業株式会社 Concentration method of organic sludge
ES2498615A1 (en) * 2014-05-22 2014-09-24 Cales De Pachs, S.A. Procedure for sanitizing sludge from edars and plant for this process (Machine-translation by Google Translate, not legally binding)
CN106348560A (en) * 2016-08-19 2017-01-25 陕西鼎益源投资有限公司 Ozone-hydroxyl free radical combined catalytic oxidation sludge conditioning method
CN106348560B (en) * 2016-08-19 2019-03-15 陕西鼎益源投资有限公司 A kind of ozone-hydroxyl radical free radical joint catalysis oxidation sludge conditioning method
WO2018227356A1 (en) * 2017-06-13 2018-12-20 Kemira Oyj Method for treating sludge
CN110891910A (en) * 2017-06-13 2020-03-17 凯米拉公司 Method for treating sludge
CN108083502A (en) * 2017-12-27 2018-05-29 江苏开放大学 A kind of preprocess method of high concentration sulfate-aniline/nitrobenzene wastewater
CN109851190A (en) * 2018-12-27 2019-06-07 广州市金龙峰环保设备工程股份有限公司 A kind of processing system and processing method of polluted bed mud desiccation
CN111547964A (en) * 2020-04-30 2020-08-18 中海石油(中国)有限公司天津分公司 Depolymerization treatment method of oil sludge containing hydrophobic association polymer

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