JPS56168896A - Treatment of concentrated organic waste liquid - Google Patents

Treatment of concentrated organic waste liquid

Info

Publication number
JPS56168896A
JPS56168896A JP7182880A JP7182880A JPS56168896A JP S56168896 A JPS56168896 A JP S56168896A JP 7182880 A JP7182880 A JP 7182880A JP 7182880 A JP7182880 A JP 7182880A JP S56168896 A JPS56168896 A JP S56168896A
Authority
JP
Japan
Prior art keywords
separated
waste liquid
water
tank
concd
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
JP7182880A
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 JP7182880A priority Critical patent/JPS56168896A/en
Publication of JPS56168896A publication Critical patent/JPS56168896A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To considerably lower the COD and chromaticity components of concd. org. waste liquid by adding a metallic ion dissociating material and H2O and/or O3 to the outflow slurry produced after biological treatment of said waste liquid then chemically treating the separated water.
CONSTITUTION: Fresh night soil 1 is flowed without being diluted into an arbitrary biological treatment device 2 of a biological nitrification and dentrification method, an activated sludge method, etc., and the mixed slurries of an outflow slurry 6 and concd. separated water 5 are introduced into a chemical mixing tank 7, when a chemical 12 is added. The mixed slurries from the tank 7 are separated to dehydrate cake 9 and dehydrated separated water 10 by a mechanical dehydrator 8. After the dehydrated water 10 is agitated with an agitating tank 10', it is neutralized by an alkali 13 consisting of a magnesium base alkali agent and/or calcium carbonate. Thence, it is flowed into a sedimentation basin 11, is separated of the precipitate 15 consisting of the depositioned ferric hydroxide and the like and is released as treated water 14.
COPYRIGHT: (C)1981,JPO&Japio
JP7182880A 1980-05-29 1980-05-29 Treatment of concentrated organic waste liquid Pending JPS56168896A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7182880A JPS56168896A (en) 1980-05-29 1980-05-29 Treatment of concentrated organic waste liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7182880A JPS56168896A (en) 1980-05-29 1980-05-29 Treatment of concentrated organic waste liquid

Publications (1)

Publication Number Publication Date
JPS56168896A true JPS56168896A (en) 1981-12-25

Family

ID=13471791

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7182880A Pending JPS56168896A (en) 1980-05-29 1980-05-29 Treatment of concentrated organic waste liquid

Country Status (1)

Country Link
JP (1) JPS56168896A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4442007A (en) * 1982-09-28 1984-04-10 Rehm Russell H Activated seawater wastewater treatment system
CN110183043A (en) * 2019-05-29 2019-08-30 国家能源投资集团有限责任公司 The processing unit of strong brine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4442007A (en) * 1982-09-28 1984-04-10 Rehm Russell H Activated seawater wastewater treatment system
CN110183043A (en) * 2019-05-29 2019-08-30 国家能源投资集团有限责任公司 The processing unit of strong brine

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