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Publikācija: Investigation of Waste from Recycling Process of Alumina Scrap Metals and Their Useful Application

Publication Type Conference paper
Funding for basic activity Unknown
Defending: ,
Publication language Latvian (lv)
Title in original language Alumīniju saturošu metāllūžņu pārstrādes atlikumu izpēte un lietderīga izmantošana
Title in English Investigation of Waste from Recycling Process of Alumina Scrap Metals and Their Useful Application
Field of research 2. Engineering and technology
Sub-field of research 2.1. Construction and transportation engineering
Authors Diāna Bajāre
Ineta Rozenštrauha
Aleksandrs Korjakins
Linda Krāģe
Keywords alum;īnija metāllūžņi, pārstrāde, izmantošana
Abstract Latvian Researchers and scientists trying to find the best way of waste recycling and useful application have been strongly interested in wastes from industry until now. One of the main tasks of researchers was to transform industrial wastes to materials, which are not hazardous to the environment and harmful to the human health. According to Latvian policy of waste recycling, which are based on EC legislation of waste processing and disposal, where is written: “pollutant is paying”, Latvian producers are starting to take part in those activities. In reality, the deposition and storage of industrial wastes is very expensive procedure, and the taxes are increasing even more yearly. Industrial producers are interested to use wastes as a raw material for production of new products, which could be competitive in Latvian market. Waste, which comes from recycling process of alumina scrap metals, normally is used in building industry in Europe for production of specific building materials. That experience is taken in to account for creation of heat resistant mortars by using wastes containing aluminium and alumina. Both chemical and mineralogical content of wastes was identified. Stability of wastes in natural environment as well as the degree of hazard was determined. New heat resistant sub-products from wastes were created and tested. Samples of heat resistant mortars were obtained by using clay with high carbonate content, shamotte, inorganic binder and wastes from recycling process of alumina scrap metals. Obtained samples were kept in the room conditions for first 3 days. The primary strength of samples was obtained in initial period of hardening. Final strength and physical properties were obtained after treatment of samples in temperature 1100oC. Samples were tested according to LVS EN standards.
Abstract in English Latvian Researchers and scientists trying to find the best way of waste recycling and useful application have been strongly interested in wastes from industry until now. One of the main tasks of researchers was to transform industrial wastes to materials, which are not hazardous to the environment and harmful to the human health. According to Latvian policy of waste recycling, which are based on EC legislation of waste processing and disposal, where is written: “pollutant is paying”, Latvian producers are starting to take part in those activities. In reality, the deposition and storage of industrial wastes is very expensive procedure, and the taxes are increasing even more yearly. Industrial producers are interested to use wastes as a raw material for production of new products, which could be competitive in Latvian market. Waste, which comes from recycling process of alumina scrap metals, normally is used in building industry in Europe for production of specific building materials. That experience is taken in to account for creation of heat resistant mortars by using wastes containing aluminium and alumina. Both chemical and mineralogical content of wastes was identified. Stability of wastes in natural environment as well as the degree of hazard was determined. New heat resistant sub-products from wastes were created and tested. Samples of heat resistant mortars were obtained by using clay with high carbonate content, shamotte, inorganic binder and wastes from recycling process of alumina scrap metals. Obtained samples were kept in the room conditions for first 3 days. The primary strength of samples was obtained in initial period of hardening. Final strength and physical properties were obtained after treatment of samples in temperature 1100oC. Samples were tested according to LVS EN standards.
Reference Bajāre, D., Rozenštrauha, I., Korjakins, A., Krāģe, L. Investigation of Waste from Recycling Process of Alumina Scrap Metals and Their Useful Application . In: Starptautiskā konference "EcoBalt ’2007", Latvia, Rīga, 10-11 May, 2007. Rīga: Intego Plus, 2007, pp.68-69.
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