چكيده لاتين :
Expansion in electrical and electronic equipment trade has led to significant increase in electronic waste
which should be dealt with special priority due to its potential negative impact to the public health and the environment.
Thermal plasma technology offers a very promising alternative of hazardous waste treatment for the near future. In this
study, a laboratory scale apparatus for generating high temperature plasma flame was presented. Design of a 20 kW
plasma torch system was based on a non transferred direct current arc discharge with air as a medium gas. In this
investigation, measurements of temperature distribution were performed. It was shown that high temperature flames
can be generated, comparable to those reported in the literature. The gas temperature was found to increase with an
increase in power input. The flame temperature was found to further increase from 1210 K to 1480 K when a small
amount of added fuel gas. Assessment of electronic waste treatment using the air plasma system in a batch operation
was also carried out. It was shown that the system was able to convert the electronic waste into combustible gas and
inert solid residues. High mass loss rate of bulk electronic waste was demonstrated.
