A novel process utilizing subcritical water and nitrilotriacetic acid to extract hazardous elements from MSW incinerator fly ash
文献类型：期刊论文
| 作者 | Zhang, Fu-Shen; Itoh, Hideaki |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2006 |
| 卷号 | 369期号:2015-01-03页码:273-279 |
| 关键词 | subcritical water waste ash NTA heavy metal extraction |
| 英文摘要 | An effective process for hazardous element extraction from municipal solid waste incinerator fly ash was developed. The key trait of the process was to extract most of the hazardous elements out of the ash but leave Ca and Si inside the residue. In the extraction process, the ash was firstly pre-washed with water, then subjected to subcritical water (SC water) treatment and nitrilotriacetic acid (NTA) extraction. SEM images indicated that SC water is strong enough to destroy the ash particles, thus greatly improving hazardous elements extraction efficiency in the subsequent NTA extraction process. The extraction percentages for Cr, As, Se, Cd and Ph under SC water+NTA treatment were around 2-6 times higher than those treated by NTA at room conditions. The preferable SC treatment temperature was 573 K and the treatment time was 3 h. The optimum NTA concentration, vibration time and liquid/solid ratio were 0.8 M, 5 h and 10:1 (ml/g), respectively. Furthermore, it was found that introduction of a suitable amount of sulfuric acid into the extraction solution could extract more than 90% of most of the hazardous elements out of the ash. (c) 2006 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000240892700025 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/22951]  |
| 专题 | 生态环境研究中心_环境纳米材料实验室 |
| 推荐引用方式 GB/T 7714 | Zhang, Fu-Shen,Itoh, Hideaki. A novel process utilizing subcritical water and nitrilotriacetic acid to extract hazardous elements from MSW incinerator fly ash[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2006,369(2015-01-03):273-279. |
| APA | Zhang, Fu-Shen,&Itoh, Hideaki.(2006).A novel process utilizing subcritical water and nitrilotriacetic acid to extract hazardous elements from MSW incinerator fly ash.SCIENCE OF THE TOTAL ENVIRONMENT,369(2015-01-03),273-279. |
| MLA | Zhang, Fu-Shen,et al."A novel process utilizing subcritical water and nitrilotriacetic acid to extract hazardous elements from MSW incinerator fly ash".SCIENCE OF THE TOTAL ENVIRONMENT 369.2015-01-03(2006):273-279. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。