Removal and Recovery of Nickel Ion from Wastewater of Electroless Plating by Reduction Crystallization

Ken Horikawa, Izumi Hirasawa

    Research output: Contribution to journalArticle

    20 Citations (Scopus)

    Abstract

    Wastewater treatment after electroless nickel plating runs has been known to be difficult and this has been a subject of worldwide concern. Discarding wastewater of electroless nickel plating into sea was prohibited under the London Dumping Treaty since 1996. We have studied on recovering nickel from wastewater by reduction crystallization. In this study, the characteristics of nickel ion removal and recovery were investigated in the process of reduction crystallization using a laboratory scale batch crystallizer (500 ml), in order to propose a new process for wastewater treatment from nickel plating. In the reduction crystallization, which can use hypophosphite ion as a reducing agent for nickel ion in the wastewater, nickel ion could be recovered as a form of nickel metal by seeding nickel powder having large specific surface area.

    Original languageEnglish
    Pages (from-to)629-632
    Number of pages4
    JournalKorean Journal of Chemical Engineering
    Volume17
    Issue number6
    Publication statusPublished - 2000 Nov

    Fingerprint

    Electroless plating
    Crystallization
    Nickel
    Wastewater
    Ions
    Nickel plating
    Recovery
    Wastewater treatment
    Crystallizers
    International cooperation
    Reducing Agents
    Reducing agents
    Specific surface area
    Powders
    Metals

    Keywords

    • Electroless Plating
    • Nickel Powder
    • Reducing Agent
    • Reduction Crystallization

    ASJC Scopus subject areas

    • Chemical Engineering(all)
    • Chemistry(all)

    Cite this

    Removal and Recovery of Nickel Ion from Wastewater of Electroless Plating by Reduction Crystallization. / Horikawa, Ken; Hirasawa, Izumi.

    In: Korean Journal of Chemical Engineering, Vol. 17, No. 6, 11.2000, p. 629-632.

    Research output: Contribution to journalArticle

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