ALTERAÇÕES NA INFILTRAÇÃO DE ÁGUA EM LATOSSOLOS DEVIDAS À INCORPORAÇÃO CONTROLADA DE RESÍDUO INDUSTRIAL DE SILICATOS

Holos Environment

Edison Augusto Luciano¹  Mário Benincasa² 

[1] ICGE/UNESP - Rio Claro, SP;CEA/UNESP - Rio Claro, SP

关键词: Resíduos sólidos industriais;    Silicatos;    Condicionadores de solo;    Infiltração de água em solo;    Retenção de água.;   

DOI  :  

学科分类：环境科学（综合）

来源: Universidade Estadual Paulista "Julio de Mesquita Filho" * Centro de Estudos Ambientais

【 摘 要 】

In this work water infiltration experiments were carried out in horizontal unsaturated soils columns. Three soils, Red-Yellow Latosol, Dark-Red Latosol, and Dusky-Red Latosol were treated with a silicate residue produced by an industry from Rio Claro city, SP. The residue was added to each soil at the rate (in weight) of 1%, 2%, 5% and 10%. A soil column without residue was used as a control. The position of wettingfront as a function of the square root of the flow infiltration time, and water contents at air-dry and saturated soils columns were measured. The result shows that the increase on the rate of incorporated residue decreased the wetting front velocity. The main conclusion is that residue addition on soils decreased the water infiltration, whereas the waterretention was increased, which is beneficial to the agriculture. From the environmental point of view, the use of the industrial residue as soil conditioner is beneficial within thelimits of this study, since it represents an alternative to storage, and/or waste disposal.

【 授权许可】

Unknown