Please use this identifier to cite or link to this item:
http://www.repositorio.cdtn.br:8080/jspui/handle/123456789/485
Title: | Mercury speciation in fluorescent lamps by thermal release analysis |
Title of periodic: | Waste Management Oxford |
Authors: | Raposo, Cláudio Windmoeller, Cláudia Carvalhinho Durão Júnior, Walter Alves |
Affiliation: | Centro de Desenvolvimento da Tecnologia Nuclear/CDTN, Belo Horizonte, MG, Brasil Universidade Federal de Minas Gerais/UFMG, Belo Horizonte, MG, Brasil Universidade Federal de Minas Gerais/UFMG, Belo Horizonte, MG, Brasil |
Issue Date: | 2003 |
Keywords: | Mercury;fluorescent lamps;chemical state;waste disposal |
Abstract: | In this work, mercury speciation in phosphorus powder matrices and soda lime glass waste from new and spent fluorescent tamp wastes has been studied by thermo-desorption/atomic absorption spectrometry (TDAAS), X-ray diffraction (XRD), cold vapor-atomic absorption (CV-AAS) and atomic emission spectrometry/inductively coupled plasma (ICP/AES). TDAAS results show the presence of oxidized forms of mercury, i.e., Hg1+ and Hg2, especially in wastes with high mercury concentration. Such forms are mobile, and therefore represent a potential hazard waste material. Glass TD profiles of spent fluorescent lamps suggested the presence of mercury strongly linked to the matrix, which desorbs only at high temperatures. |
Access: | L |
Appears in Collections: | Artigo de periódico |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.