Data/hora: 22/06/2024 04:14:00

Biblioteca(s): | Embrapa Meio Ambiente.
Data corrente: | 10/01/2011
Data da última atualização: | 11/01/2011
Autoria: | MOULTON, T. P.; SOUZA, M. L.; SILVEIRA, R. M. L.; KRSULOVIC, F, A. M.; SILVEIRA, M. P.; FRANCISCHETTI, C. N.
Afiliação: | Timoth P. Moulton, Departamento de Ecologia - UERJ; Marcelo L. Souza, INCRA - Superintendência Regional do Maranhão; Roberto M. L. Silveira, Instituto de Biociências - Cuiabá; Felipe A. M. Krsulovic, Pontificia Universidad Catolica de Chile; MARIANA SILVEIRA GUERRA MOURA E SILVA, CNPMA; César N. Francischetti.
Título: | Patterns of periphyton are determined by cascading trophic relationships in two neotropical streams.
Ano de publicação: | 2010
Fonte/Imprenta: | Marine and Freshwater Research, v. 61, n. 1, p. 57-64, 2010.
Idioma: | Inglês
Conteúdo: | Several different Advanced Oxidation Processes (AOPs) including ozonation at pH 6.5 and 10, photolysis and heterogeneous photocatalysis using TiO2 as semiconductor and dissolved oxygen as electron acceptor were applied to study the degradation of glyphosate (N-phosphonomethyl glycine) in water. The degree of glyphosate degradation, the reactions kinetic and the formation of the major metabolite, aminomethyl phosphonic acid (AMPA), were evaluated. Ozonation at pH 10 resulted in the maximum mineralization of glyphosate. It was observed that under the experimental conditions used in this study the degradation of glyphosate followed the first-order kinetics. The half-life obtained for glyphosate degradation in the O3/pH 10 process was 1.8 minutes.
Thesagro: | Ecologia Aquatica.
Categoria do assunto: | --
Registro original: | Embrapa Meio Ambiente (CNPMA)
Exemplares: | CNPMA - (9507-1) - UPC - SP - PP - AP - PAT 2010 - 2010.00058 - DIS