Removal properties of phosphate with Ettringite

被引：1

作者：

Kamimoto, Yuki ^{[1
]}

Onda, Keita ^{[2
]}

Ichino, Ryoichi ^{[1
]}

Min, Kyung-Sok ^{[3
]}

Kwon, Koo-Ho ^{[3
]}

Jung, Yong-Jun ^{[4
]}

机构：

[1] Nagoya Univ, EcoTopia Sci Inst, Nagoya, Aichi, Japan

[2] Nagoya Univ, Dept Mat Sci & Engn, Nagoya, Aichi, Japan

[3] Kyungpook Natl Univ, Dept Environm Engn, Daegu, South Korea

[4] Catholic Univ Pusan, Dept Environm Engn, Pusan, South Korea

来源：

DESALINATION AND WATER TREATMENT | 2017年 / 63卷

关键词：

Adsorption; Alkaline condition; Cement precursor; Ettringite; pH; Phosphate; PHOSPHORUS; RECOVERY;

D O I：

10.5004/dwt.2017.11454

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

This work has performed the feasibility of utilizing synthetic ettringite as an adsorbent for phosphate removal in lab-scale experiments. Studies were focused on the influence of solution pH for the removal properties of phosphate. Ettringite was stable in the alkaline condition, and it was quickly decomposed in acid condition. Calcium and aluminum compound was formed at each pH condition. Phosphate removal performance was increased with the increase of solution pH. It was shown that the phosphate removal mechanism was influenced not only ion-exchange but also phosphate compound formation. The inside of large size ettringite residue was kept ettringite structure, and the phosphate was removed by ettringite surface only.

引用

页码：478 / 482

页数：5

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