Study of mineralogy and leaching behavior of stabilized/solidified sludge using differential acid neutralization analysis Part II: Use of numerical simulation as an aid tool for cementitious hydrates identification

被引：12

作者：

Peyronnard, O. ^{[1
]}

Blanc, D. ^{[1
]}

Benzaazoua, M. ^{[2
]}

Moszkowicz, P. ^{[1
]}

机构：

[1] INSA, LGCIE Site Carnot, F-69621 Villeurbanne, France

[2] UQAT, Quebec City, PQ J9X 5E4, Canada

来源：

CEMENT AND CONCRETE RESEARCH | 2009年 / 39卷 / 06期

关键词：

Waste management (E); Modeling (E); Mineral assemblage; Fly ash (D); Portland cement (D); PORTLAND-CEMENT; SOLUBILITY; EQUILIBRIA; PHREEQC; WASTE;

D O I：

10.1016/j.cemconres.2009.03.012

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this work, we propose a methodology coupling differential acid neutralization analysis, chemical analysis of selected leachates and numerical simulation to identify the minerals controlling the leaching behavior of stabilized hydroxide sludge. This second part deals with the use of numerical simulation as an aid tool for the identification of the minerals. The framework for minerals identification is based on the study of minerals stability in function of the geochemical context using numerical simulation. A mineral assemblage permitting the simulation of a pH dependence leaching test (acid neutralization and release of elements) has been identified for the four studied cement pastes. Therefore, the proposed methodology is a pertinent tool for the modeling of the leaching behavior of inorganic wastes. (c) 2009 Elsevier Ltd. All rights reserved.

引用

页码：501 / 509

页数：9