2010
DOI: 10.1590/s0100-40422010000800014
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Avaliação da liberação de NH4NO3 ocluido em zeólita 4A a partir de soluções salinas

Abstract: Recebido em 25/11/09; aceito em 22/4/10; publicado na web em 9/8/10 ASSESSMENT OF RELEASE OF NH 4 NO 3 OCCLUDED ZEOLITE 4A IN SOLUTIONS FROM SALINAS. The zeolite 4A was used to evaluate the thermo kinetics parameters of NH 4 + and NO 3 -ions occluded in its structure. The Osawa method for activation energy calculation was used to evaluate its thermal stability, and the results shown that the ion species interact differently depending on the zeolite pores, which determines the controlled release by its structur… Show more

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“…The presence of zeolite with the additives B and Cu +2 (U_BCuZ_i) reduced NH 4 + leaching and, therefore, this clay mineral contributes to soil ammonium retention, due to its negative charges (Andrade et al, 2010).…”
Section: Resultsmentioning
confidence: 99%
“…The presence of zeolite with the additives B and Cu +2 (U_BCuZ_i) reduced NH 4 + leaching and, therefore, this clay mineral contributes to soil ammonium retention, due to its negative charges (Andrade et al, 2010).…”
Section: Resultsmentioning
confidence: 99%