| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Solos. |
|
Data corrente: |
10/09/2021 |
|
Data da última atualização: |
27/09/2021 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
SOUZA, P. S. A. de; CERQUEIRA, A. A.; RIGO, M. M.; PAIVA, J. L. de; COUTO, R. S. P.; MERÇON, F.; PEREZ, D. V.; MARQUES, M. R. C. |
|
Afiliação: |
PAULO S. A. DE SOUZA, UERJ; ALEXANDRE A. CERQUEIRA, UERJ; MICHELLE M. RIGO, UERJ; JULIETA L. DE PAIVA, UERJ; RAFAEL S. P. COUTO, UERJ; FÁBIO MERÇON, UERJ; DANIEL VIDAL PEREZ, CNPS; MONICA R. C. MARQUES, UERJ. |
|
Título: |
Oilfield water treatment by electrocoagulation-reverse osmosis for agricultural use: effects on germination and early growth characteristics of sunflower. |
|
Ano de publicação: |
2017 |
|
Fonte/Imprenta: |
Environmental Technology, v. 38, n. 9, p. 1151-1159, 2017. |
|
DOI: |
https://doi.org/10.1080/09593330.2016.1218941 |
|
Idioma: |
Inglês |
|
Conteúdo: |
This study aims to evaluate the effects of oilfield water (OW), treated by a hybrid process of electrocoagulation and reverse osmosis (EC-RO), on seed germination and early growth characteristics of sunflower (Heliantus annus L.). In the EC step, tests were conducted with 28.6 A m(-2) current density and 4 min. reaction time. In the RO step, the system was operated with 1 L min(-1) constant flow and 2 MPa, 2.5 MPa and 3 MPa feed pressures. In all feed pressures, RO polymeric membranes achieved very high removals of chemical oxygen demand (up to 89%) and oils and greases (100%) from EC-treated effluent. In best feed pressure (2.5 MPa), turbidity, total dissolved salts, electrical conductivity, salinity, toxic ions and sodium adsorption ratio values attained internationally recognized standards for irrigation water. Using EC-RO (feed pressure: 2.5 MPa) treated OW, germinated sunflower seeds percentage (86 +/- 6%), speed of germination (30 +/- 2) and biomass production (49 +/- 5 mg) were statistically similar to control (distilled water) results. Vigor index average values obtained using OW treated by EC-RO (3871) were higher than that obtained by OW water treated by EC (3300). The results of this study indicate that EC-RO seems to be a promising alternative for treatment of OW aiming sunflower crops irrigation, since the use of this treated effluent did not affect adversely seed germination and seedling development, and improved seedling vigor. Furthermore, OW treatment by EC-RO reduces sodium levels into acceptable standards values avoiding soil degradation. MenosThis study aims to evaluate the effects of oilfield water (OW), treated by a hybrid process of electrocoagulation and reverse osmosis (EC-RO), on seed germination and early growth characteristics of sunflower (Heliantus annus L.). In the EC step, tests were conducted with 28.6 A m(-2) current density and 4 min. reaction time. In the RO step, the system was operated with 1 L min(-1) constant flow and 2 MPa, 2.5 MPa and 3 MPa feed pressures. In all feed pressures, RO polymeric membranes achieved very high removals of chemical oxygen demand (up to 89%) and oils and greases (100%) from EC-treated effluent. In best feed pressure (2.5 MPa), turbidity, total dissolved salts, electrical conductivity, salinity, toxic ions and sodium adsorption ratio values attained internationally recognized standards for irrigation water. Using EC-RO (feed pressure: 2.5 MPa) treated OW, germinated sunflower seeds percentage (86 +/- 6%), speed of germination (30 +/- 2) and biomass production (49 +/- 5 mg) were statistically similar to control (distilled water) results. Vigor index average values obtained using OW treated by EC-RO (3871) were higher than that obtained by OW water treated by EC (3300). The results of this study indicate that EC-RO seems to be a promising alternative for treatment of OW aiming sunflower crops irrigation, since the use of this treated effluent did not affect adversely seed germination and seedling development, and improved seedling vigor. Furthermore, OW treatment by EC-... Mostrar Tudo |
|
Palavras-Chave: |
Electrocoagulation; Oilfield water. |
|
Thesaurus Nal: |
Irrigation; Reverse osmosis; Sunflower seed. |
|
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
|
Marc: |
null
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Solos (CNPS) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 1 | |
| 1. |  | RAMOS, M. V. V.; CURI, N.; MOTTA, P. E. F. da; VITORINO, A. C. T.; FERREIRA, M. M.; SILVA, M. L. N. Veredas do Triângulo Mineiro: solos, água e uso. Ciência e Agrotecnologia, v. 30, n. 2, p. 283-293, mar./abr. 2006.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - B |
| Biblioteca(s): Embrapa Solos. |
|    |
| Registros recuperados : 1 | |
|
| Expressão de busca inválida. Verifique!!! |
|
|
