Data/hora: 14/06/2024 16:20:28

Biblioteca(s): | Embrapa Uva e Vinho.
Data corrente: | 06/07/2021
Data da última atualização: | 06/07/2021
Autoria: | DIAS, L. de A.; ITAKO, A. T.; GEBLER, L.; TOLENTINO JÚNIOR, J. B.; PIZZUTTI, I. R.; FONTANA, M. E.; JANISCH, B. D.; NIEMEYER, J. C.
Afiliação: | LETICIA DE A. DIAS, Programa de Pós-Graduação em Ecossistemas Agrícolas e Naturais (PPGEAN), Universidade Federal de Santa Catarina (UFSC) - Campus de Curitibanos, Curitibanos, Santa Catarina 89520-000, Brazil e-mail: leticia_diaas@yahoo.com.br; ADRIANA T. ITAKO, Programa de Pós-Graduação em Ecossistemas Agrícolas e Naturais (PPGEAN), Universidade Federal de Santa Catarina (UFSC) - Campus de Curitibanos, Curitibanos, Santa Catarina 89520-000, Brazil e-mail: leticia_diaas@yahoo.com.br; LUCIANO GEBLER, CNPUV; JOÃO B. TOLENTINO JÚNIOR, Programa de Pós-Graduação em Ecossistemas Agrícolas e Naturais (PPGEAN), Universidade Federal de Santa Catarina (UFSC) - Campus de Curitibanos, Curitibanos, Santa Catarina 89520-000, Brazil e-mail: leticia_diaas@yahoo.com.br; IONARA R. PIZZUTTI, Centro de Pesquisa e Análise de Resíduos e Contaminantes (CEPARC), Departamento de Química, Universidade Federal de Santa Maria (UFSM), Santa Maria, Rio Grande do Sul, Brazil; MARLOS E. FONTANA, Centro de Pesquisa e Análise de Resíduos e Contaminantes (CEPARC), Departamento de Química, Universidade Federal de Santa Maria (UFSM), Santa Maria, Rio Grande do Sul, Brazil; BÁRBARA D. JANISCH, Centro de Pesquisa e Análise de Resíduos e Contaminantes (CEPARC), Departamento de Química, Universidade Federal de Santa Maria (UFSM), Santa Maria, Rio Grande do Sul, Brazil; JÚLIA C. NIEMEYER, Programa de Pós-Graduação em Ecossistemas Agrícolas e Naturais (PPGEAN), Universidade Federal de Santa Catarina (UFSC) - Campus de Curitibanos, Curitibanos, Santa Catarina 89520-000, Brazil e-mail: leticia_diaas@yahoo.com.br.
Título: | Pine litter and vermicompost as alternative substrates for biobeds: efciency in pesticide degradation.
Ano de publicação: | 2021
Fonte/Imprenta: | Water, Air and Soil Pollution, p. 232-283, June 2021.
Idioma: | Português
Conteúdo: | Pesticide use generates wastewaters from its handling and from washing of spraying equipment, bringing concern about punctual discharge. Biobeds are biopurifcation systems for pesticide residues disposal, representing safe alternatives to avoid soil contamination. Peat that composes the original biomixture is not available all around Brazil. The aim of this work was to evaluate the efciency of two alternative, accessible biomixtures, replacing peat, for treating phosmet (organophosphate insecticide) residues in biobeds and reducing its ecotoxicological efects. We hypothesized that the new biomixtures with pine litter (PB) or vermicompost (VB) could show the same degradation and detoxifcation efciency as the standard biobed?s biomixture (SB) using peat. Small size bioreactors received 35 mg kg&#8722;1 of phosmet (Imidan®) in a laboratory-scale experiment. The pesticide degradation was monitored by chemical analysis. The decrease of ecotoxicity was determined by reproduction tests with collembolans (Folsomia candida) and enchytraeids (Enchytraeus crypticus), following ISO guidelines. Degradation curves showed that all biomixtures reached almost complete degradation of phosmet after 90 days. Collembolans were more sensitive than enchytraeid, confrming their usefulness in biomonitoring insecticide degradation. This work showed that both pine litter and vermicompost are potentially substitutes for peat in alternative biomixtures, since they were efcient in degrading the pesticide and reducing its ecotoxicity. Our results contribute for the development of newly, accessible biobeds for south Brazil, bringing the frst study reports involving such biobeds capacity to degrade phosmet, which is a commonly used pesticide in this region.
Palavras-Chave: | Ecotoxicity; Edaphic fauna; Organophosphate.
Thesaurus Nal: | Chemical analysis; Degradation; Insecticides.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
Registro original: | Embrapa Uva e Vinho (CNPUV)
Exemplares: | CNPUV - (18686-1) - UPC - AP - DD -  -  -  - DIS