000			02163nab a2200289 i 4500
003			BR-BrBNA
005			20260504105025.0
008			260504b2019 bl.qr|pooa||| 00| 0 eng |
040			_aBR-BrBNA _beng
072			_aP35
100			_aCampos, Thaís
100			_aChaer, Guilherme
100			_aLeles, Paulo dos Santos
100			_aSilva, Marcelo
100			_aSantos, Felipe
245			_aLeaching of Heavy Metals in Soils Conditioned with Biosolids from Sewage Sludge
500			_aPublicação on-line; 29 ref.; 3 tables; 1 illus.; Summary (En)
520			_a ABSTRACT A promising use of biosolids is as organic fertilizer in agricultural and forestry activities. However, its composition might contain several pollutants, especially heavy metals, which may result in an increase in the concentrations of these elements in the soil and the risk of groundwater contamination. This study aimed to determine the leaching levels of ions in a Ferralsol (clayey texture) and in a Planosol (sandy texture). The experiment was conducted in a greenhouse at Embrapa Agrobiologia, Seropédica, Rio de Janeiro state. Soils were packed in PVC columns and received 2 L/column of biosolids. The concentrations of heavy metals present in the biosolids composition were below the limits established by the legislation (CONAMA 375). In addition, the performed simulations showed the absence of contamination risk of soil or groundwater and surface water, according to the limits allowed by CONAMA 375. However, it should be emphasized the potential of nitrate leaching. Keywords: contamination risk, chemical elements percolation, test with columns, risk analysis.
650			_aCONTAMINAÇÃO
650			_aSOLO
650			_aLIXIVIAÇÃO
650			_aANÁLISE DE RISCO
773	0		_02929 _9347954 _dRio de Janeiro-RJ Instituto de Florestas - UFRRJ 1994 _o2025-0453 _tFloresta e Ambiente (Brazil) _x1415-0980 / ISSN 2179-8087 0nline _gv. 26(special number n.1) p. 1-10; (2019) _wBR2026001314
856			_uhttps://www.scielo.br/j/floram/a/zfTSGnmzY4xSds8cpr8KkhQ/?format=pdf&lang=en
942			_cANA
999			_c341645 _d341645