Evaluation of the capacity of hydroxyapaptite prepared from concrete sludge to remove lead from water

Takeshi Sasaki, Yuka Sakai, Atsushi Iizuka, Takashi Nakae, Shigeru Kato, Tomonori Kojima, Akihiro Yamasaki

    研究成果: Article査読

    25 被引用数 (Scopus)

    抄録

    Low-crystallinity hydroxyapatite (HAP) was prepared from concrete sludge as a recycling method for concrete waste. The HAP was prepared from model samples of concrete sludge and phosphorus wastewater, and its capacity to remove lead from water was investigated. Lead ions were quickly removed by the HAP particles. Some of the prepared HAP samples reduced the lead concentration of the water to within the Japanese standard for industrial effluent (0.1 ppm). The lead removal capacity of the concrete sludge-derived HAP (506 mg/g) was comparable to that of reagent grade HAP. Lead in water was removed in the form of Pb3(CO3)2(OH)2. These results indicate that HAP prepared from concrete sludge can be applied to removal of lead ions from water.

    本文言語English
    ページ(範囲)9564-9568
    ページ数5
    ジャーナルIndustrial and Engineering Chemistry Research
    50
    16
    DOI
    出版ステータスPublished - 2011 8 17

    ASJC Scopus subject areas

    • 化学 (全般)
    • 化学工学(全般)
    • 産業および生産工学

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