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Evaluation of formaldehyde in foundry waste sands using liquid chromatography
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Orientador(es)
Resumo(s)
The industrial manufacturing of metallic objects results in a high level
of foundry waste sands that may contain toxic compounds such as formaldehyde.
The formaldehyde content of foundry waste sands was evaluated by liquid chromatography.
Samples were collected during various steps of the industrial processes.
Results showed that the phenolic alkaline process generated waste sands
with higher formaldehyde content than the furanic process; the highest value
was 7.6×10-3% (w/w). In this work, formaldehyde content decreased with time
in all of the samples studied, revealing that most formaldehyde was released to
the occupational environment.
Descrição
Palavras-chave
Formaldehyde Foundry waste sands Liquid chromatography Organic contamination
Contexto Educativo
Citação
Editora
Taylor & Francis