Title:
METHODS FOR TREATING SOLID WASTE
Document Type and Number:
Japanese Patent JP2000015222
Kind Code:
A
Abstract:
To provide a method for treating solid waste which can fix both 'hard' metals such as lead and mercury and 'soft' metals such as zinc, cadmium, and nickel surely, and the solid waste can be treated surely while the re- elution of solidified metals being prevented completely.
In a method for treating solid waste, a metal scavenger having at least one kind of group shown by -(CH2)n -COOH (wherein n is an integer of 1-4) or -CH2 CHRCOOH (wherein R is -CH3 or -CH2COOH) or its salt which substituted for an active hydrogen atom and has bonded to a nitrogen atom in a molecule of polyamines as an functional group is added to the solid waste in order to fix the metals in the waste.
Inventors:
HOSODA KAZUO
SUGIYAMA KATSUYUKI
SHIMIZU TAKESHI
MORIYA MASAFUMI
SUGIYAMA KATSUYUKI
SHIMIZU TAKESHI
MORIYA MASAFUMI
Application Number:
JP19971098A
Publication Date:
January 18, 2000
Filing Date:
June 30, 1998
Export Citation:
Assignee:
MIYOSHI YUSHI KK
International Classes:
B09C1/02; B09C1/08; C02F11/00; C09K3/00; B09B3/00; (IPC1-7): B09B3/00; B09B3/00; B09C1/02; B09C1/08; C02F11/00
Attorney, Agent or Firm:
Hosoi Isamu
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