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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Possibilities of removing lead and other harmful elements from waste from metallurgical processes
 Jedličková, Veronika ; Kurka, Vladislav (referee) ; Čamek, Libor (advisor)
The work describes an overview of individual variants of processing and recycling of metallurgical waste. From the economic and especially ecological point of view, the possibility of landfilling this waste seems to be very unsatisfactory. Currently a considerable amount of material from previous production is stored in landfills. The presence of hazardous elements in this waste means a certain risk to the environment. Undesirable elements include Zn, Pb, Cd and others. In these experiments, changes in the chemical composition of blast furnace sludge were observed with a focus on changing the concentration of lead and zinc in the form of oxides. The sludge was heated in a rotary kiln to different temperatures and under different atmospheres. Lead oxide has been shown to be effectively removed in oxidizing atmosphere, while zinc oxide concentration is effectively reduced in reducing atmosphere.
Detailed record
Possibilities of removing lead and other harmful elements from waste from metallurgical processes
 Jedličková, Veronika ; Kurka, Vladislav (referee) ; Čamek, Libor (advisor)
The work describes an overview of individual variants of processing and recycling of metallurgical waste. From the economic and especially ecological point of view, the possibility of landfilling this waste seems to be very unsatisfactory. Currently a considerable amount of material from previous production is stored in landfills. The presence of hazardous elements in this waste means a certain risk to the environment. Undesirable elements include Zn, Pb, Cd and others. In these experiments, changes in the chemical composition of blast furnace sludge were observed with a focus on changing the concentration of lead and zinc in the form of oxides. The sludge was heated in a rotary kiln to different temperatures and under different atmospheres. Lead oxide has been shown to be effectively removed in oxidizing atmosphere, while zinc oxide concentration is effectively reduced in reducing atmosphere.
Detailed record

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