Decontamination of metal-contaminated waste foundry sands using an EDTA-NaOH-NH3 washing solution
详细信息 查看全文
- 作者：Hikaru Sawaia ; hikaru.sawai@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Ismail M.M. Rahmanb ; immrahman@ipc.fukushima-u.ac.jp" class="auth_mail" title="E-mail the corresponding author ; Mayuko Fujitac ; Naoyuki Jiia ; Tomoya Wakabayashia ; Zinnat A. Begumd ; Teruya Makic ; Satoshi Mizutanie ; Hiroshi Hasegawac ; hhiroshi@se.kanazawa-u.ac.jp" class="auth_mail" title="E-mail the corresponding author
- 关键词：Waste foundry sand ; Potentially-toxic-elements (PTEs) ; Washing remediation ; Chelant ; Ammonia
- 刊名：Chemical Engineering Journal
- 出版年：2016
- 出版时间：15 July 2016
- 年：2016
- 卷：296
- 期：Complete
- 页码：199-208
- 全文大小：1219 K
文摘
- •
Removal of potentially-toxic-elements (PTEs) from waste foundry sand (WFS).
- •
A new process without high temperature, pressure, or any vigorous protocol.
- •
EDTA, NaOH and ammonia are used as mixed extractant to enhance the removal of PTEs.
- •
Residual contents of PTEs are reduced quantitatively to a minimum concentration.
- •
Leachable PTEs from the treated WFS are in compliance with the regulatory limits.