Preferential removal and immobilization of stable and radioactive cesium in contaminated fly ash with nanometallic Ca/CaO methanol suspension

• Published in: Journal of hazardous materials Vol. 279; pp. 52 - 59
• Main Authors: Mallampati, Srinivasa Reddy, Mitoma, Yoshiharu, Okuda, Tetsuji, Sakita, Shogo, Simion, Cristian
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier B.V 30.08.2014; Elsevier
• Subjects: Applied sciences; Calcium - chemistry; Calcium Compounds - chemistry; Cesium; Cesium - chemistry; Cesium - isolation & purification; Cesium Isotopes - chemistry; Cesium Isotopes - isolation & purification; Cesium Radioisotopes - chemistry; Cesium Radioisotopes - isolation & purification; Coal Ash - analysis; Contaminated fly ash; Contamination; Exact sciences and technology; Fly ash; Immobilization; Incineration; Methanol; Methanol - chemistry; Methyl alcohol; Microscopy, Electron, Scanning; Nanometallic Ca/CaO; Nanostructure; Oxides - chemistry; Pollution; Refuse Disposal; Remediation; Removal; Stable and radioactive cesium; Suspensions; Washing; Removal; Immobilization; Contaminated fly ash; Nanometallic Ca/CaO; Stable and radioactive cesium; Methanol; Cesium 137; Scanning electron microscopy; Elution; Radioactive pollution; Cesium 134; Combustion; Washing; Radioisotope; Fly ash; Amendment; Decontamination; Ash content

Schematic representation of possible mechanisms determining the Cs extraction and immobilization in fly ash during water, methanol or n-MCaS extraction. •nMCaS suspension for cesium extraction and immobilization in fly ash was developed.•Enhanced cesium immobilization was done by nanometallic Ca/CaO...