Ultrasonically aided mineral processing technique for remediation of soil contaminated by heavy metals

Hanna Kyllönen, Pentti Pirkonen (Corresponding Author), Väinö Hintikka, Pekka Parviainen, Antti Grönroos, Hannu Sekki

    Research output: Contribution to journalArticleScientificpeer-review

    37 Citations (Scopus)


    In this study, power ultrasound was used as aiding method for the mineral processing technique, which have recently been developed for the remediation of soil contaminated by heavy metal containing bullets, their broken parts and alteration products. Power ultrasound was used to disperse the soil to remove metals and metal compounds from soil particle surfaces instead of attrition conditioning. The soil diluted with water was treated using 22 kHz ultrasound power of 100 W up to 500 W. The effect of different ultrasonic treatment time and pulsation of ultrasound were studied on the purity of sink and float fractions in heavy medium separation process, screen fractions, and mineral concentrates and tailings from flotation process. Ultrasound enhanced the remediation of soil fractions in all the studied cases. Optimisation of the ultrasonic power will be done in the continuation study.
    Original languageEnglish
    Pages (from-to)211-216
    Number of pages6
    JournalUltrasonics Sonochemistry
    Issue number3-4
    Publication statusPublished - 2004
    MoE publication typeA1 Journal article-refereed
    Event4th Conference on the Applications of Power Ultrasound in Physical and Chemical Processing, USOUND4 - Besancon, France
    Duration: 22 May 200323 May 2003


    • ultrasound
    • power ultrasound
    • remediation
    • soil
    • heavy metals
    • mineral processing
    • minerals


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