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2010 Fiscal Year Final Research Report

Removal and recovery of phosphorus in sewage water by superconducting high gradient magnetic separation with ferromagnetic adsorbent

Research Project

  • PDF
Project/Area Number 20560759
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Recycling engineering
Research InstitutionTokyo Metropolitan University

Principal Investigator

MIURA Osuke  Tokyo Metropolitan University, 大学院・理工学研究科, 准教授 (50281241)

Project Period (FY) 2008 – 2010
Keywords下水処理場 / リン / 富栄養化防止 / ゼロエミッション / 再資源化 / 磁気分離
Research Abstract

Phosphorus in the treated wastewater could be removed absolutely (>90%) by high gradient magnetic separation system (HGMS) with 200 mg/L zirconium ferrite adsorbent for 15 minutes in adsorption time. According to Langmuir plot analysis, we found that this zirconium ferrite adsorbent had the capacity of adsorption of 12.8mg-P/g-ZrFe. We also confirmed that over 70% phosphorus adsorbed by 2000mg/L zirconium ferrite could be desorbed from it by alkali treatment for 15 minutes. After desorbing, zirconium ferrite adsorbent was restored by acid treatment to adsorb phosphorus repeatedly. Magnetic separation speed achieved 1m/sec which was necessary for practical use with an applied magnetic field of 2T and magnetic filter of 8% packing factor. These results suggest that HGMS using powdered zirconium ferrite adsorbent is suitable for a large-scale wastewater treatment at sewage plants, and the possibility of the recovery of phosphorus from the treated sewage water without secondary waste.

  • Research Products

    (4 results)

All 2010 2008

All Journal Article (2 results) Presentation (2 results)

  • [Journal Article] Removal and recovery of phosphorus in wastewater by superconducting high gradient magnetic separation with ferromagnetic adsorbent2010

    • Author(s)
      T. Ishiwata, O. Miura, K. Hosomi, K. Shimizu, D. Ito, Y. Yoda
    • Journal Title

      Physica C : Superconductivity Volume 470, Issue 20

      Pages: 1818-1821

  • [Journal Article] Phosphate removal and recycle by magnetic separation with zirconium ferrite adsorbent2008

    • Author(s)
      Disuke Ito, Kenji Nishimura, Osuke Miura
    • Journal Title

      Environmental Science and Technology 2008(1)

      Pages: 97-101

  • [Presentation] ジルコニウム・フェライト吸着剤と磁気分離による排水中のリンの浄化回収と再資源化2010

    • Author(s)
      三浦、細見、清水、斎藤
    • Organizer
      磁気制御・磁場応用・夏の学校
    • Place of Presentation
      東京
    • Year and Date
      20100900
  • [Presentation] ジルコニウム・フェライト吸着剤と磁気分離による排水中のリンの浄化回収と再資源化III2010

    • Author(s)
      三浦、細見、清水、斎藤
    • Organizer
      低温工学超伝導学会春季
    • Place of Presentation
      川崎
    • Year and Date
      20100400

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Published: 2012-01-26   Modified: 2016-04-21  

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