每年出版 4 期
ISSN 打印: 1093-3611
ISSN 在线: 1940-4360
Indexed in
PLASMA TECHNOLOGY FOR VITRIFICATION OF ASH FROM POWER PLANTS
摘要
As a result of burning fossil fuels a great amount of toxic ash is produced. In most cases the ash is polluted with heavy metals and sometimes radionuclides. The analyses of ash from a power plant were made by Scanning Electron Microscope (SEM) and Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES Analysis). The results of the investigation show that ash is superfine powder polluted with heavy metals. Vitrification is one of the most promising ways of environmental protection from pollution with highly toxic dispersed materials. We propose the arc plasma technology for the vitrification of toxic ash. An experimental plasma set was designed and manufactured. The heart of the proposed set is a transferred arc plasma torch and plasma reactor where ash is melted and vitrified under the impact of high temperature. As a result, we receive solid chemically resistant material with a low rate of leaching. The material is environmentally friendly and can be stored for a long time or used in construction as a filling compound.
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Zhu Jian Xin, Kang Shao Guo, Development and Application of Plasma Technology for POPs Waste Treatment in China, Advanced Materials Research, 878, 2014. Crossref