| 摘要 |
PROBLEM TO BE SOLVED: To provide a water quality purification material effectively removing a heavy metal included in drainage and excellent in economy. SOLUTION: A reducing water purification material comprising containing at least any of iron ferrite and reducing iron hydroxide together with green rust, and preferably including a reducing iron precipitate containing a noble metal preferably includes a reducing iron precipitate having a bivalent iron ratio to total iron (Fe<SP>2+</SP>/total Fe) is 0.3 or more, has oxidation-reduction potential (Ag/AgCl electrode standard) of slurry of -500 mV to -800 mV, and can be used at normal temperature. COPYRIGHT: (C)2007,JPO&INPIT
|
