Caracterização e classificação de placas de circuito impresso de computadores como residuos solidos
Renata Andrade
DISSERTAÇÃO
Português
(Broch.)
T/UNICAMP An24c
[Characterization and classification of printed circuit boards of computer as solid residues]
Campinas, SP : [s.n.], 2002.
125p. : il.
Orientador : Waldir Antonio Bizzo
Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica
Resumo: Equipamentos utilizados na indústria de processamento de dados ou de entretenimento podem conter mais de 30% de placas de circuito impresso. Estas placas são formadas por unidades isoladas e integradas e sua sucata contém cobre, chumbo, cádmio, zinco, estanho, bem como os metais...
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Resumo: Equipamentos utilizados na indústria de processamento de dados ou de entretenimento podem conter mais de 30% de placas de circuito impresso. Estas placas são formadas por unidades isoladas e integradas e sua sucata contém cobre, chumbo, cádmio, zinco, estanho, bem como os metais preciosos,ouro, prata e platina. Além de metais e ligas metálicas, as placas de circuito impresso contêm vários compostos orgânicos e inorgânicos que de alguma forma prejudicam o ambiente. O objetivo deste trabalho foi a caracterização e classificação das placas de circuito impresso utilizadas em computadores como resíduos sólidos. Para atingi-lo foram utilizadas amostras de sucatas de placas de circuito impresso com componentes eletrônicos, que foram analisadas com intuito de caracterizar o resíduo como combustível e classificá-lo de acordo com a NBR 10004. O resultado da caracterização mostra que o resíduo possui características indesejáveis como combustível, devido ao teor de cinzas e baixo poder calorífico. A análise do lixiviado indicou um grande potencial de contaminação por metais pesados (chumbo e cádmio), classificando o resíduo como perigoso. Devido as características das sucatas eletrônicas, com grande potencial de contaminação ambiental, há necessidade de um sistema de gestão e controle da disposição final dos mesmos
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Abstract: Equipments used in the data processing industry or entertainment they can contain more than 30% of printed circuit boards. These plates are formed by isoIated units and integrated and its scrap
contains copper, lead, cadmium, zinc, tin, as well as the precious metals, gold, silver and... Ver mais Abstract: Equipments used in the data processing industry or entertainment they can contain more than 30% of printed circuit boards. These plates are formed by isoIated units and integrated and its scrap
contains copper, lead, cadmium, zinc, tin, as well as the precious metals, gold, silver and platinum. Besides metals and metallic leagues, the printed circuit boards contains several organics and inorganics componds that in some way harm the environment. The objective of this work was the characterization and classification of the printed circuit boards used in computers as solid residues. To reach it, samples of scraps of printed circuit boards were used, that were analyzed with intention of characterizing the residue as fuel and to classify him/it in agreement with NBR 10004. The result of the characterization shows that the residue possesses undesirable characteristics as fuel, due to the tenor of ashes and low calorific power. The analysis of the leached indicated a great potential of contamination for heavy metals (lead and cadmium), classifying the residue as dangerous. Due the characteristics of the electronic scraps, with great potential of environmental contamination, there are need of an administration system and control of the final disposition of the same ones Ver menos
contains copper, lead, cadmium, zinc, tin, as well as the precious metals, gold, silver and... Ver mais Abstract: Equipments used in the data processing industry or entertainment they can contain more than 30% of printed circuit boards. These plates are formed by isoIated units and integrated and its scrap
contains copper, lead, cadmium, zinc, tin, as well as the precious metals, gold, silver and platinum. Besides metals and metallic leagues, the printed circuit boards contains several organics and inorganics componds that in some way harm the environment. The objective of this work was the characterization and classification of the printed circuit boards used in computers as solid residues. To reach it, samples of scraps of printed circuit boards were used, that were analyzed with intention of characterizing the residue as fuel and to classify him/it in agreement with NBR 10004. The result of the characterization shows that the residue possesses undesirable characteristics as fuel, due to the tenor of ashes and low calorific power. The analysis of the leached indicated a great potential of contamination for heavy metals (lead and cadmium), classifying the residue as dangerous. Due the characteristics of the electronic scraps, with great potential of environmental contamination, there are need of an administration system and control of the final disposition of the same ones Ver menos
Caracterização e classificação de placas de circuito impresso de computadores como residuos solidos
Renata Andrade
Caracterização e classificação de placas de circuito impresso de computadores como residuos solidos
Renata Andrade
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