Classificação de resíduos de madeira tratada com preservativos à base de arseniato de cobre cromatado e de boro/flúor

Química Nova

Suzana Frighetto Ferrarini²  Heldiane Souza Dos Santos²  Luciana Gampert Miranda²  Carla M. N. Azevedo²  Marçal J. R. Pires²  Sandra Maria Maia¹ 

[1] ,Pontifícia Universidade Católica do Rio Grande do Sul Faculdade de Química Porto Alegre RS ,Brasil

关键词: wastes;    treated wood;    preservatives;   

DOI  :  10.1590/S0100-40422012000900012

来源: SciELO

【 摘 要 】

Classification of waste wood treated with chromated copper arsenate (CCA) and boron/fluorine preservatives, according to NBR 10004, was investigated. The leaching test (ABNT NBR 10005) for As and Cr, and solubilization test (ABNT NBR 10006) for F, were applied to out-of-service wooden poles. Concentrations of As and Cr in leachates were determined by ICP-MS and of F by ESI. Values for As were higher than 1 mg L-1 classifying the waste as hazardous material (Class I) whereas values for F (> 1.5 mg L-1) were non-hazardous but indicated non-inert material (Class IIA).

【 授权许可】

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