Use este identificador para citar ou linkar para este item:
https://locus.ufv.br//handle/123456789/25482
Tipo: | Artigo |
Título: | Transport parameters of potassium from different sources in soil columns |
Autor(es): | Vilela, Nathane M. S. Thebaldi, Michael S. Leal, Bruno De P. Silva, Ascânio V. Martins, Ivani P. |
Abstract: | This study aimed to determine some transport parameters of potassium in soil columns by miscible displacement of effluent from a Sewage Treatment Plant (STP). This effluent was collected at different stages of treatment, and potassium chloride solutions were prepared with the same K pulse concentration as the effluent. They were used to conduct a miscible displacement experiment of potassium in soil columns of dystrophic Red Latosol. Both types of solutions contained concentrations of 30 and 32 mg L-1 of potassium. STANMOD software was used to obtain the retardation factor (R) and the Peclet number (Pe) from pore volume and relative concentration. Both retardation factor and solid-water partition coefficient of the soil showed significant results by ANOVA. When assessing KCl solutions, retardation factor was higher than that observed for the effluent, resulting in higher soil-solute interaction. The presence of other competitor cations in the effluent caused less potassium adsorption by the soil. Based on the results, potassium provided a greater groundwater pollutant potential when applied via effluent than solutions of potassium chloride with the same ion concentrations. |
Palavras-chave: | Breakthrough curves Environmental contamination Miscible displacement |
Editor: | Engenharia Agrícola |
Tipo de Acesso: | Open Access |
URI: | http://dx.doi.org/10.1590/1809-4430-eng.agric.v38n1p135-141/2018 http://www.locus.ufv.br/handle/123456789/25482 |
Data do documento: | Jan-2018 |
Aparece nas coleções: | Solos - Artigos |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
---|---|---|---|---|
artigo.pdf | texto completo | 527,98 kB | Adobe PDF | Visualizar/Abrir |
Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.