Effect of application of treated wastewater in soil cultivated with rosebushes Online publication date: Wed, 24-Feb-2016
by Luccas Erickson De Oliveira Marinho; Daniele Tonon Dominato; Túlio Ribeiro Assunção Pires; Bruno Coraucci Filho
International Journal of Environmental Engineering (IJEE), Vol. 7, No. 3/4, 2015
Abstract: The use of reclaimed wastewater, besides reduces environmental impacts also has agronomic attractive, by recycling nutrients and water. The aim of this study was to evaluate salinity through SAR and perform a comparison with electrical conductivity in function of the diagram recommended by the US Dept. of Agriculture for sanitary effluent treated through anaerobic filters and pos-treatment through sand filters. Besides it was evaluated the soil changes after cultivation. The classification of the final effluent was C3S1, being able to be used with a moderate degree of restriction. In soil, it was observed a sodium concentration increasing, but similar in all treatment. Although the exchangeable sodium percentage was higher in soil irrigated with reclaimed wastewater, it was between the acceptable levels. As the results were satisfactory, we prove that is possible to apply higher hydraulic rates in sand beds to produce reclaimed wastewater for irrigation purposes.
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