Evaluation of Formaldehyde Content in Foundry Waste Sands Using Liquid Chromatography

• Type: Article in International Scientific Journal
• Date: 2009

Authors

M. T. Oliva-Teles (Author) FEUP; P. Paíga (Author) FEUP; C. M. Delerue-Matos (Author) FEUP; M. C. M. Alvim-Ferraz (Author) FEUP

Journal

Title: Analytical Letters

Vol. 42 No. 3

Pages: 492-504

ISSN: 0003-2719

Publisher: Taylor & Francis

Indexing

ISI Web of Science

Scopus

Scientific classification

FOS: Engineering and technology > Environmental engineering

CORDIS: Technological sciences > Engineering

Other information

DOI: 10.1080/00032710802363453

Abstract (EN): 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.

Language: English

Type (Professor's evaluation): Scientific