JPS57153791A - Purification of heavy metal-contaminated matter - Google Patents

Purification of heavy metal-contaminated matter

Info

Publication number
JPS57153791A
JPS57153791A JP3875481A JP3875481A JPS57153791A JP S57153791 A JPS57153791 A JP S57153791A JP 3875481 A JP3875481 A JP 3875481A JP 3875481 A JP3875481 A JP 3875481A JP S57153791 A JPS57153791 A JP S57153791A
Authority
JP
Japan
Prior art keywords
contaminated
slaked lime
matter
cadmium
heavy metals
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.)
Granted
Application number
JP3875481A
Other languages
Japanese (ja)
Other versions
JPS6134874B2 (en
Inventor
Tatsuo Minami
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 JP3875481A priority Critical patent/JPS57153791A/en
Publication of JPS57153791A publication Critical patent/JPS57153791A/en
Publication of JPS6134874B2 publication Critical patent/JPS6134874B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Removal Of Specific Substances (AREA)

Abstract

PURPOSE: To efficiently purify matter, e.g. soil or sludge, contaminated with heavy metals such as Hg, while inhibiting generation of secondary pollution, by treating the contaminated matter with ethylenediamine tetracetate and slaked lime.
CONSTITUTION: Matter contaminated with heavy metals such as Hg and Pb is treated with ethylenediamine tetracetate and slaked lime, to remove the heavy metals as metal chelates. The ratio of ethylenediamine tetracetate to slaked lime is 1:3W10. For instance, ethylenediamine tetracetate and slaked lime are spread to a contaminated farm containing lppm concentration of cadmium in its soil depth of 10W20cm at 10g and 50g, respectively, per are twice every other day. As a result, the existence of cadmium is not detected, and 100% of cadmium is converted into its complex salt. Thus, the farm is purified.
COPYRIGHT: (C)1982,JPO&Japio
JP3875481A 1981-03-19 1981-03-19 Purification of heavy metal-contaminated matter Granted JPS57153791A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3875481A JPS57153791A (en) 1981-03-19 1981-03-19 Purification of heavy metal-contaminated matter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3875481A JPS57153791A (en) 1981-03-19 1981-03-19 Purification of heavy metal-contaminated matter

Publications (2)

Publication Number Publication Date
JPS57153791A true JPS57153791A (en) 1982-09-22
JPS6134874B2 JPS6134874B2 (en) 1986-08-09

Family

ID=12534071

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3875481A Granted JPS57153791A (en) 1981-03-19 1981-03-19 Purification of heavy metal-contaminated matter

Country Status (1)

Country Link
JP (1) JPS57153791A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105478467A (en) * 2016-01-25 2016-04-13 湖南农业大学 Method for eluting heavy metals Cu, Zn, Pb and Cd in soil by use of EDTA calcium salt

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105478467A (en) * 2016-01-25 2016-04-13 湖南农业大学 Method for eluting heavy metals Cu, Zn, Pb and Cd in soil by use of EDTA calcium salt

Also Published As

Publication number Publication date
JPS6134874B2 (en) 1986-08-09

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