Percolated pollutants in soils after recycled paper factory residues application

Abstract

Was to study the recycled paper factory residues application effects, in the percolated soils water, main objective of this work. The residues application on the soil has been crescent, and called the attention by the possibility of environment contamination, mainly by the water pollution. With the use of recycled paper factory residue, was accomplished the test at the green house from Embrapa. PVC tubes were mounted with residue mixture and two types of soil, Neossolo Regolítico Distrófico Húmico and Cambissolo Húmico Distrófico Típico. The experiment was accomplished in randomized blocks with three repetitions, with crescent dosages (0,10,20,40 and 80 ton. ha^-1). The duration was of 140 days, with the collection of the percolated water from the vases. The results were compared with the Resolution CONAMA number 357/05. The aluminum, iron and manganese exceeded the legislation limits. The chromium, phenol, amoniacal nitrogen, nitritos, orthophosphate, sodium and sufactants didn’t exceed the limits.