Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 23, 2011
Patent Application Number
12205450
Date Filed
September 5, 2008
Patent Primary Examiner
Patent abstract
A former (11) works, when supplied with wastewater containing heavy metals and hydrogen sulfide, to react heavy metals contained in wastewater with hydrogen sulfide to form sulfide salts, an acquirer (12) works, when supplied with sulfide salts and acid, to acquire hydrogen sulfide and heavy metal ions produced by reactions between sulfide salts and acid, a hydrogen sulfide supply line (13) supplies hydrogen sulfide acquired by the acquirer to the former, and a collection line (20) collects heavy metal ions.
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