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The consumption of coffee beverage is responsible for the production of a residual mass called residual coffee waste. Environmental impact studies on this material and/or those resulting from its decomposition are scarce. Thus, the present work aimed to identify the potential of environmental impact of the solubilized extract of the residual coffee waste (BC) via leakage effect with Eiseniafetida earthworms in sandy and clayey soil. A completely randomized design with 6 treatments and 3 replicates for both soils was used. The treatments were: T1 3.125%; T2 = 6.25%; T3 12.5%; T4 25%; T5 50% and T6 100% of BC extract as a function of the volume to dampen each soil. An analysis of variance (ANOVA) was carried out, as well as comparisons of Tukey's test hair at 5% probability of each month, with the help of software BioEstat 5.0 and the available graphics made without software SigmaPlot 12.5.It was identified that the extract BC, in general did not present potential toxic effect. However, it is noteworthy that at doses equivalent to 100% of the moisture in the field capacity, leaks occurred, which reveals toxicity, for both soils.

Impacto Ambiental do Extrato Solubilizado de Borra de Café sobre Organismo Terrestre