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DYNA

versão impressa ISSN 0012-7353

Resumo

COSTA, Danniely de Oliveira et al. Chemical characteristics of soil irrigated with produced water treatment and underground wáter. Dyna rev.fac.nac.minas [online]. 2019, vol.86, n.210, pp.143-149. ISSN 0012-7353.  https://doi.org/10.15446/dyna.v86n210.79115.

Irrigation effects of produced water treatment, diluted in underground water, were analyzed through the chemical characteristics of argisol with foraging palm. Assay was performed in a randomized block design (RBD), with five replications, in a subdivided split plot scheme. Splits comprised treatments T1 (100% underground water - UW, control), T2 (75% UW and 25% produced water treatment - PW), T3 (50% UW and 50% PW), T4 (25% UW and 75% PW) and T5 (100% PW), whilst sub splits comprised soil depths (0 - 0.10 m and 0.10 - 0.20 m). The results showed that irrigation with diluted treated water produced no risk of soil salinization. There was evidence of leaching of the mobile ions to the deeper layer of soil, especially sodium and magnesium. The highest risk of sodification was observed for soil irrigated only with groundwater (T1 - control treatment).

Palavras-chave : petroleum; wastewater; sodicity; salinization..

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