Data/hora: 12/06/2024 00:19:11

Biblioteca(s): | Embrapa Territorial.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | A - 1
Data corrente: | 30/09/2011
Data da última atualização: | 03/05/2019
Autoria: | PEREIRA, B. F. F.; HE, Z. L.; HERPIN, U.; NOGUEIRA, S. F.; MONTES, C. R.; MELFI, A. J.
Afiliação: | B. F. F. PEREIRA, Esalq/USP; Z. L. HE, University of Florida; U. HERPIN, Esalq/USP; SANDRA FURLAN NOGUEIRA, CNPM; C. R. MONTES, Esalq/USP; A. J. MELFI, Esalq/USP.
Título: | Reclaimed wastewater: impact on soil-plant system under tropical conditions.
Ano de publicação: | 2011
Fonte/Imprenta: | Journal of Hazardous Materials, v. 192, p. 54-61, 2011.
DOI: | 10.1016/j.jhazmat.2011.04.095
Idioma: | Inglês
Conteúdo: | This study investigated the ionic speciation of reclaimed urban wastewater (RWW), and the impact of increasing RWW irrigation rates on soil properties and plant nutrition under field conditions. Most RWW elements (>66%) are readily available as NH4 +, Ca2+, Mg2+, K+, SO4 2&#8722;, Cl&#8722;, H3BO3, Mn2+ and Zn2+, but in imbalanced proportion for plant nutrition. Lead, Cd, Cr and Al in RWW are mostly bounded with DOM or OH&#8722;..Irrigation with RWW decreased soil acidity, which is beneficial to the acidic tropical soil. Although RWW irrigation builds exchangeable Na+ up, the excessive Na+ was leached out of the soil profile after a rainy summer season (>400 mm). Benefits of the disposal of RWW to the soil under tropical conditions were discussed, however, the over irrigation with RWW (>100% of crop evapotranspiration) led to a nutritional imbalance, accumulating S and leading to a plant deficiency of P and K.
Palavras-Chave: | Acidic soil; Al toxicity; Ionic speciation; Urban effluent; Wastewater disposal.
Thesaurus Nal: | water reuse.
Categoria do assunto: | --
Registro original: | Embrapa Territorial (CNPM)
Exemplares: | CNPM - (3125-1) - UPC - AP - PP - 11/010 - AP - 2011.010 - DIS