中国科学院力学研究所机构知识库
Advanced  
IMECH-IR  > 等离子体与燃烧中心(2009-2011)  > 会议论文
Title:
The impact of additives on the formation and leaching characteristics of the vitrified slag
Author: Zhang JL(张金龙); Li YJ(李要建); Xu YX(徐永香); Sheng HZ(盛宏至)
Issued Date: 2009
Conference Name: Joint Conference: International Thermal Treatment Technologies (IT3) and Hazardous Waste Combustors (HWC)
Conference Date: May 18, 2009 - May 21, 2009
Conference Place: Cincinnati, OH, United states
Abstract: Plasma technology is a state-of-the-art technology to destroy various types of hazardous wastes. The vitrified slag can form in the process of plasma treatment of inorganic wastes and effectively stabilize and immobilize heavy metals, and its leaching rate is very low. In this paper, the impact of additives on the formation and leaching characteristics of the vitrified slag has been studied by a 30 kW DC plasma arc reactor system and rotating agitator, respectively. In the experiment, the mixtures of additives (SiO2, Na2CO3, Na2SiO3 and CaO) and two types of fly ashes have been vitrified, and leaching rates of the vitrifies slag have been tested according to Identification standards for hazardous wastes - Identification for extraction toxicity (GB 5085.3-2007). XRD (X-ray diffraction) analysis results of the microscopic structures of the vitrified slag show they are amorphous. The impact of additives depend on the ration of O/Si (the ratio of the whole oxygen ions to the whole network former Si ions in the vitrified slag, range of 2-3) and the basicity (range of 0.2-0.8), which are the determinative factors in the formation of the vitrified slag. The bigger ratio of O/Si and the narrower peak width of the spectrum lead to the higher leaching characteristics and more unstable vitrified slag.
Keyword: Analysis results ; Arc ; DC plasma ; Hazardous wastes ; Inorganic waste ; Leaching characteristics ; Leaching rates ; Microscopic structures ; Oxygen ions ; Peak widths ; Plasma technology ; Plasma treatment ; Reactor systems ; Si ions ; State-of-the-art technology ; XRD
Indexed Type: EI
Corresponding Author: Zhang, J. (zhangjinlong@imech.ac.cn)
Source: Joint Conference: International Thermal Treatment Technologies (IT3) and Hazardous Waste Combustors (HWC)
Language: 英语
ISBN: 9781615671830
Content Type: 会议论文
URI: http://dspace.imech.ac.cn/handle/311007/60471
Appears in Collections:等离子体与燃烧中心(2009-2011)_会议论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
Ca2009-070.pdf(1131KB)会议论文--开放获取View Download

Recommended Citation:
Zhang JL,Li YJ,Xu YX,et al. The impact of additives on the formation and leaching characteristics of the vitrified slag[C]. 见:Joint Conference: International Thermal Treatment Technologies (IT3) and Hazardous Waste Combustors (HWC). Cincinnati, OH, United states. May 18, 2009 - May 21, 2009
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[张金龙]'s Articles
[李要建]'s Articles
[徐永香]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[张金龙]‘s Articles
[李要建]‘s Articles
[徐永香]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: Ca2009-070.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院力学研究所 - Feedback
Powered by CSpace