Your browser doesn't support javascript.
loading
Performance of the fixed-bed of granular activated carbon for the removal of pesticides from water supply.
Alves, Alcione Aparecida de Almeida; Ruiz, Giselle Louise de Oliveira; Nonato, Thyara Campos Martins; Müller, Laura Cecilia; Sens, Maurício Luiz.
Afiliação
  • Alves AAA; a Programa de Pós-Graduação em Engenharia Ambiental , Universidade Federal de Santa Catarina, Campus Universitário UFSC/CTC Bairro Trindade , Florianópolis/SC , Brasil.
  • Ruiz GLO; b Laboratório de Águas e Ecotoxicologia , Universidade Federal da Fronteira Sul , Cerro Largo/RS , Brasil.
  • Nonato TCM; c Departamento de Engenharia Civil , Universidade Federal de Santa Catarina, Campus Universitário UFSC/CTC Bairro Trindade , Florianópolis/SC , Brasil.
  • Müller LC; a Programa de Pós-Graduação em Engenharia Ambiental , Universidade Federal de Santa Catarina, Campus Universitário UFSC/CTC Bairro Trindade , Florianópolis/SC , Brasil.
  • Sens ML; a Programa de Pós-Graduação em Engenharia Ambiental , Universidade Federal de Santa Catarina, Campus Universitário UFSC/CTC Bairro Trindade , Florianópolis/SC , Brasil.
Environ Technol ; 40(15): 1977-1987, 2019 Jun.
Article em En | MEDLINE | ID: mdl-29383989
The application of a fixed bed adsorption column of granular activated carbon (FBAC-GAC), in the removal of carbaryl, methomyl and carbofuran at a concentration of 25 µg L-1 for each carbamate, from the public water supply was investigated. For the determination of the presence of pesticides in the water supply, the analytical technique of high-performance liquid chromatography with post-column derivatization was used. Under conditions of constant diffusivity, the FBAC-GAC was saturated after 196 h of operation on a pilot scale. The exhaust rate of the granular activated carbon (GAC) in the FBAC-GAC until the point of saturation was 0.02 kg GAC m-3 of treated water. By comparing a rapid small-scale column test and FBAC-GAC, it was confirmed that the predominant intraparticle diffusivity in the adsorption column was constant diffusivity. Based on the results obtained on a pilot scale, it was possible to estimate the values to be applied in the FBAC-GAC (full scale) to remove the pesticides, which are particle size with an average diameter of 1.5 mm GAC; relationship between the internal diameter of the column and the average diameter of GAC ≥50 in order to avoid preferential flow near the adsorption column wall; surface application rate 240 m3 m-2 d-1 and an empty bed contact time of 3 min. ABBREVIATIONS: BV: bed volume; CD: constant diffusivity; EBCT: empty bed contact time; FBAC-GAC: fixed bed adsorption column of granular activated carbon; GAC: granular activated carbon; MPV: maximum permitted values; NOM: natural organic matter; PD: proportional diffusivity; pHPCZ: pH of the zero charge point; SAR: surface application rate; RSSCT: rapid small-scale column test; WTCS: water treated conventional system.
Assuntos
Palavras-chave
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Praguicidas / Poluentes Químicos da Água / Purificação da Água Idioma: En Revista: Environ Technol Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Praguicidas / Poluentes Químicos da Água / Purificação da Água Idioma: En Revista: Environ Technol Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido