JPS5781892A - Method for non-polluting and solidifying harmful material sludge - Google Patents

Method for non-polluting and solidifying harmful material sludge

Info

Publication number
JPS5781892A
JPS5781892A JP12152179A JP12152179A JPS5781892A JP S5781892 A JPS5781892 A JP S5781892A JP 12152179 A JP12152179 A JP 12152179A JP 12152179 A JP12152179 A JP 12152179A JP S5781892 A JPS5781892 A JP S5781892A
Authority
JP
Japan
Prior art keywords
contg
sludge
sand
harmful
solidifying
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
JP12152179A
Other languages
Japanese (ja)
Inventor
Junji Mitani
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP12152179A priority Critical patent/JPS5781892A/en
Publication of JPS5781892A publication Critical patent/JPS5781892A/en
Pending legal-status Critical Current

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  • Treatment Of Sludge (AREA)

Abstract

PURPOSE: To make sludge contg. harmful materials pollution-free as solids of high strength by mixing cement, slaked lime, PVA soln., sand contg. iron powder soil or sand and an Mg salt to sludge contg. harmful materials, and kneading these then molding and solidifying the mixture.
CONSTITUTION: Cement, slaked lime, PVA soln. sand contg. iron powder, soil or sand and an Mg salt are mixed with sludge contg. harmful materials such as Hg. CN, Cd, As, and after these are kneaded and intimately mixed, the mixture is molded and solidified. The molded and solidified solids have increased solidifying power of harmful materials accompanied by the increase in strength; for example, the solidifying power of CN is ≥500mg/kg sludge contg. harmful sludge and the waste molding sand contg. 20% iron powder exhibits ≥2g/kg solidifying power. Elution of As is not addmitted upon lapse of 14 days after solidification with the sludge contg. ≥300mg/kg harmful org. materials.
COPYRIGHT: (C)1982,JPO&Japio
JP12152179A 1979-09-20 1979-09-20 Method for non-polluting and solidifying harmful material sludge Pending JPS5781892A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12152179A JPS5781892A (en) 1979-09-20 1979-09-20 Method for non-polluting and solidifying harmful material sludge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12152179A JPS5781892A (en) 1979-09-20 1979-09-20 Method for non-polluting and solidifying harmful material sludge

Publications (1)

Publication Number Publication Date
JPS5781892A true JPS5781892A (en) 1982-05-22

Family

ID=14813273

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12152179A Pending JPS5781892A (en) 1979-09-20 1979-09-20 Method for non-polluting and solidifying harmful material sludge

Country Status (1)

Country Link
JP (1) JPS5781892A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108947420A (en) * 2018-07-25 2018-12-07 郴州市金贵银业股份有限公司 A kind of processing method of arsenic-containing waste residue

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108947420A (en) * 2018-07-25 2018-12-07 郴州市金贵银业股份有限公司 A kind of processing method of arsenic-containing waste residue

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