Evaluation of the Capacity of Hydroxyapaptite Prepared from Concrete Sludge to Remove Lead from Water

被引：30

作者：

Sasaki, Takeshi ^{[2
]}

Sakai, Yuka ^{[2
]}

Iizuka, Atsushi ^{[1
]}

Nakae, Takashi ^{[2
]}

Kato, Shigeru ^{[2
]}

Kojima, Tomonori ^{[2
]}

Yamasaki, Akihiro ^{[2
]}

机构：

[1] Tohoku Univ, Res Ctr Sustainable Sci & Engn, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan

[2] Seikei Univ, Dept Mat & Life Sci, Fac Sci & Technol, Musashino, Tokyo 1808633, Japan

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2011年 / 50卷 / 16期

关键词：

AQUEOUS-SOLUTION; IONS; COPPER; CADMIUM; EQUILIBRIUM; ADSORBENT; SAWDUST; WASTE;

D O I：

10.1021/ie200233s

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

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 Pb(3)(CO(3))(2)(OH)(2). These results indicate that HAP prepared from concrete sludge can be applied to removal of lead ions from water.

引用

页码：9564 / 9568

页数：5

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