在生物反应器中对铁矿石矿浆进行生物浸出过程中的杂质溶解动力学、流变特性和流体力学方面的研究

IF 2.2 4区工程技术 Q2 MECHANICS

Korea-Australia Rheology Journal Pub Date : 2024-09-09 DOI:10.1007/s13367-024-00104-2

Luis Antonio Ramirez-Torres, Diola Marina Nuñez-Ramirez, Luis Medina-Torres, Octavio Manero

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引用次数: 0

摘要

本研究旨在研究两种粒度和三种不同纸浆密度的生物浸出过程中的流变行为和杂质溶解动力学，并对其进行分析和比较。研究发现，粒度小、纸浆密度为 40%（重量比）的颗粒能在最短的生物浸出时间内（2 天内）最大限度地溶解杂质。此外，通过对纸浆密度为 40%（重量比）、粒径为 44 μm 的系统进行 CFD 模拟，700 转/分钟的搅拌速度为生物反应器提供了最佳的混合条件，使再循环区分布良好，流线形态适当，粘度图最大限度地减少了高粘度和低粘度区域。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Study of the impurity dissolution kinetics, rheological characterization, and hydrodynamic aspects during the bioleaching of iron ore pulp in a bioreactor

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Study of the impurity dissolution kinetics, rheological characterization, and hydrodynamic aspects during the bioleaching of iron ore pulp in a bioreactor

This research aims to study the rheological behavior and impurities dissolution kinetics in a bioleaching process of two particle sizes and three different pulp densities, which are analyzed and compared. It was found that the small particle size with 40% (w/w) pulp density provides the maximum dissolution of impurities in the shortest bioleaching time (in 2 days). Furthermore, through a CFD simulation in a system with 40% (w/w) pulp density and 44 μm particle size, a stirring speed of 700 rpm provides the best mixing conditions in the bioreactor, enabling good distribution of recirculation zones and adequate streamline patterns with a viscosity map that minimizes regions of high and low viscosity.

Graphical abstract

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来源期刊

Korea-Australia Rheology Journal 工程技术-高分子科学

CiteScore

2.80

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Korea-Australia Rheology Journal is devoted to fundamental and applied research with immediate or potential value in rheology, covering the science of the deformation and flow of materials. Emphases are placed on experimental and numerical advances in the areas of complex fluids. The journal offers insight into characterization and understanding of technologically important materials with a wide range of practical applications.