JPS56155684A - Treatment of heavy metals dissolved in aqueous solution - Google Patents

Treatment of heavy metals dissolved in aqueous solution

Info

Publication number
JPS56155684A
JPS56155684A JP5778880A JP5778880A JPS56155684A JP S56155684 A JPS56155684 A JP S56155684A JP 5778880 A JP5778880 A JP 5778880A JP 5778880 A JP5778880 A JP 5778880A JP S56155684 A JPS56155684 A JP S56155684A
Authority
JP
Japan
Prior art keywords
waste water
heavy metals
added
converter slag
sludge
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
JP5778880A
Other languages
Japanese (ja)
Inventor
Shin Yamashita
Takao Ikehata
Kazuhiko Tate
Keisuke Nakahara
Original Assignee
Nippon Kokan Kk <Nkk>
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 Nippon Kokan Kk <Nkk> filed Critical Nippon Kokan Kk <Nkk>
Priority to JP5778880A priority Critical patent/JPS56155684A/en
Priority claimed from FR8015448A external-priority patent/FR2460895B1/fr
Publication of JPS56155684A publication Critical patent/JPS56155684A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To precipitate heavy metals with sludge and remove them from waste water by a method in which granular converter slag is added to a waste water containing heavy metals such as Hg, etc., while an acid is also added to the waste water to regulate its pH, and then the granular converter slag is again added to the waste water.
CONSTITUTION: A harmful waste water containing Hg and other harmful heavy metals, e.g., smoke-washing water from incinerator for wastes, etc., is put in a pH regulating tank 8, and then granular converter slag 12a and an acid 13, e.g., hydrochloric acid, etc., are added to the waste water with stirring by a stirring blade 6a to regulate its pH to 2.0 or less. The waste water so treated is kept for approx. 10min or more and then transferred to a reactor tank 1, and the granular converter slag 12 is again added to the waste water with stirring, whereupon heavy metals such as Hg, etc., are reacted with the converter slag and precipitated in the form of sludge. The sludge-containing waste water is sent to a filter separator 2, where solids are separated from liquid to produce harmless treated water containing no Hg, etc.
COPYRIGHT: (C)1981,JPO&Japio
JP5778880A 1980-05-02 1980-05-02 Treatment of heavy metals dissolved in aqueous solution Pending JPS56155684A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5778880A JPS56155684A (en) 1980-05-02 1980-05-02 Treatment of heavy metals dissolved in aqueous solution

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP5778880A JPS56155684A (en) 1980-05-02 1980-05-02 Treatment of heavy metals dissolved in aqueous solution
FR8015448A FR2460895B1 (en) 1979-07-13 1980-07-11
IT4922880A IT1148264B (en) 1979-07-13 1980-07-11 TREATMENT AGENTS IN PARTICULAR FOR HEAVY DISSOLVED METALS AND RELATED TREATMENT PROCEDURE
DE19803026430 DE3026430C2 (en) 1979-07-13 1980-07-11 Process for the separation of heavy metals dissolved in wastewater using slag
CA000355995A CA1166548A (en) 1979-07-13 1980-07-11 Treating agents for treating dissolved heavy metals and method of treating dissolved heavy metals with the treating agents
GB8022945A GB2054547B (en) 1979-07-13 1980-07-14 Removing dissolved heay metals from solution
US06/169,220 US4377483A (en) 1979-07-13 1980-07-15 Method of removing dissolved heavy metals from aqueous waste liquids

Publications (1)

Publication Number Publication Date
JPS56155684A true JPS56155684A (en) 1981-12-01

Family

ID=13065615

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5778880A Pending JPS56155684A (en) 1980-05-02 1980-05-02 Treatment of heavy metals dissolved in aqueous solution

Country Status (1)

Country Link
JP (1) JPS56155684A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030052320A (en) * 2001-12-21 2003-06-27 재단법인 포항산업과학연구원 A Recovering Method of Valuable Ingredients In the Pickling Waste Acid From STS Work

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030052320A (en) * 2001-12-21 2003-06-27 재단법인 포항산업과학연구원 A Recovering Method of Valuable Ingredients In the Pickling Waste Acid From STS Work

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