ORP of Wastewater Containing Ni Ion Treated by Ferrite Process and XPS of the Sludge.

• HONDA Yoshiji

  Environment Preservation Center, Kyoto University

• KITAMURA Mitsunobu

  Department of Materials Science, School of Engineering, The University of Shiga Prefecture

• TAKATSUKI Hiroshi

  Environment Preservation Center, Kyoto University

Bibliographic Information

Other Title

• ニッケル含有廃液のフェライト化処理における酸化還元電位とＸ線光電子分光法による検討
• ニッケル ガンユウ ハイエキ ノ フェライトカ ショリ ニ オケル サンカ カンゲン デンイ ト Xセン コウデンシ ブンコウホウ ニ ヨル ケントウ

Abstract

Formation of the sludge by ferrite process was studied by two methods. The one was the approach from oxidation-reduction potential (ORP) change in ferrite reaction process, the other was surface analysis of the sludge by X-ray photoelectron spectroscopy (XPS). The aqueous solution of various Ni ion concentrations as model wastewater was examined.<br>With increasing Ni ion concentration in original solution, the interval from the beginning of air oxidation to the rapid rising of ORP increased. As compared with the theoretical Ni ratio of the NiFe₂O₄, the experimental result suggests the existence of incomplete Ni ferrite or impure Ni compounds. XPS measurement of sludges formed by ferrite process indicated the existence of Ni(OH)₂ at surface of 1,000mg/dm³-Ni and 2,500mg/dm³-Ni sludges. Hydoroxide was also observed not only at surface but inside particles of 2,500mg/dm³-Ni sludge by the measurement after Xe⁺ sputterring.

Journal

• Journal of Japan Society on Water Environment

  Journal of Japan Society on Water Environment 22 (1), 35-39, 1999

  Japan Society on Water Environment

Keywords

• ferrite process
• oxidation-reduction potential
• X-ray photoelectron spectroscopy
• ferrite sludge

Details

• CRID: 1390001205081212928
• NII Article ID: 10004451518
• NII Article ID: 10008006188
• NII Book ID: AN10372439
• DOI: 10.2965/jswe.22.35
• COI: 1:CAS:528:DyaK1MXhtlOrsbY%3D
• ISSN: 18813690
• ISSN: 09168958
• ISSN: http://id.crossref.org/issn/09168958
• NDL BIB ID: 1524978
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I1524978
• Web Site: https://www.jstage.jst.go.jp/article/jswe/22/1/22_1_35/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed