Environmental behavior of soils and mixtures of soil-whitewash mud

Revista Árvore

Carlos Cardoso Machado¹  José Maurício Machado Pires¹  Maurício Paulo F. Fontes¹  Reginaldo Sérgio Pereira¹  Carla Ribeiro Machado E Portugal¹ 

[1] ,Federal University of Viçosa MG ,Brazil

关键词: Soils;    industrial solid residue;    whitewash mud;    environmental problem;    Solos;    resíduo sólido industrial;    lama-de-cal;    comportamento ambiental;   

DOI  :  10.1590/S0100-67622004000300017

来源: SciELO

【 摘 要 】

The present study sought to observe the behavior of soils in natural state and in mixtures, in different ratios, with the industrial solid residue called whitewash mud. The work was conducted with samples of typical soils from the region of Alagoinhas, Bahia-Brazil. Wet chemical analysis and atomic absorption spectrophotometry were used in order to obtain the classification of the industrial solid residue. Solubilization and leaching tests were performed and X-ray diffraction and electron microscopy techniques were carried out. The results showed that the whitewash mud was classified as non-inert, but with great capacity of heavy metal retention largely owed to the kaolinite and goethite presence in the clay fraction of the soils, making it difficult to have heavy metals readily available for exchange.

【 授权许可】

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