Hydrothermal synthesis of pollucite with soil and incineration ash for Cs immobilization and its immobilizing mechanism and leaching property

被引：10

作者：

Jing, Zhenzi ^{[1
]}

Li, Jian ^{[1
]}

Hao, Wenbo ^{[1
]}

Miao, Jiajun ^{[1
]}

机构：

[1] Tongji Univ, Minist Educ, Sch Mat Sci & Engn, Key Lab Adv Civil Engn Mat, 4800 Caoan Rd, Shanghai 201804, Peoples R China

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2019年 / 319卷 / 03期

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

Hydrothermal synthesis; Pollucite; Tobermorite; Cs immobilization; Soil; Incineration ashes; LONG-TERM BEHAVIOR; WATER;

D O I：

10.1007/s10967-018-6393-0

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A hydrothermal method has been developed to convert Cs-polluted soil (kaolin) mixed with incineration ashes of plants (rice husk ash) into pollucite for the in situ immobilization of Cs. With the addition of slaked lime, a very tough tobermorite-pollucite body could further be obtained. According to extended X-ray absorption fine structure analysis, Cs did be embedded into the crystal structure of pollucite, which resulted in a perfect Cs leaching performance of the synthesized specimens. As such, the technology has a high potential to be directly applied to the in situ treatment of huge amounts of Cs-polluted soil and incineration ashes of plants. [GRAPHICS] .

引用

页码：1083 / 1091

页数：9

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