Title:
重金属含有固体廃棄物の重金属固定化剤及びその製造方法、重金属固定化方法
Document Type and Number:
Japanese Patent JP4775279
Kind Code:
B2
Abstract:
To produce an inorganic heavy metal fixing agent which detoxifies harmful heavy metals contained in a heavy metal-containing solid waste safely stably at a low cost, and also to provide its production method and further a method for fixing heavy metal using the heavy metal fixing agent.
The heavy metal fixing agent of the heavy metal-containing solid waste is formulated with an agent for releasing sulfur ions, alkali hydroxide, and sulfur. The heavy metal fixing agent is produced by mixing the agent for releasing the sulfur ions with the alkali hydroxide and then dissolving the sulfur into the mixture.
COPYRIGHT: (C)2008,JPO&INPIT
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Inventors:
Water product Keiichi
Keisuke Sakuma
Keisuke Sakuma
Application Number:
JP2007033725A
Publication Date:
September 21, 2011
Filing Date:
February 14, 2007
Export Citation:
Assignee:
Kurita Water Industries Ltd.
Koyo Chemical Co., Ltd.
Koyo Chemical Co., Ltd.
International Classes:
B09B3/00; C09K3/00
Domestic Patent References:
| JP11123374A | ||||
| JP2203981A | ||||
| JP2004008945A | ||||
| JP11123376A | ||||
| JP59059281A | ||||
| JP1218672A |
Attorney, Agent or Firm:
Tsuyoshi Shigeno