关于的溶解度和有机物对黑酸盐浸的影响的全面见解
Houda A Khedr1, Mohamed O Ebraheem2, Ahmed M Zayed3
1Geology Department, Faculty of Science, New Valley University, New Valley, Egypt. houda.mohamed238@gmail.com.
Scientific reports
|August 19, 2024
概括
黑酸盐中的有机物质在酸出水过程中显著提高了的可溶性. 对有机物质的纳米级研磨最能促进的溶解,突出其至关重要的作用.
科学领域:
- 地质化学 地质化学
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
背景情况:
- (P) 溶解性对于营养物质的可用性和环境过程至关重要.
- 酸盐岩中的有机物质 (OM) 可以影响P的回收和生物可用性.
- 了解在酸性漏过程中OM和P之间的相互作用对于优化提取至关重要.
研究的目的:
- 研究黑色酸盐 (RB-Ph) 中有机物质 (OM) 在酸 (AA) 浸出过程中对 (P) 溶解度的影响.
- 评估不同OM处理 (化,氧化,纳米研磨) 对P溶解的作用.
- 为了确定从RB-Ph中P浸出的最佳条件.
主要方法:
- 通过化 (CB-Ph),过氧化处理 (HB-Ph) 和纳米研磨 (NB-Ph) 来改变RB-Ph.
- 处理过的酸盐材料的矿物学,化学和形态性质的表征.
- 在各种实验条件下量化P溶解速率,包括酸/固体比和保留时间.
主要成果:
- 溶解遵循了这一趋势:NB-Ph>RB-Ph>CB-Ph>HB-Ph.
- 纳米研磨 (NB-Ph) 显著增强了P溶解 (730-980 ppm) 由于增加了无形含量和OM.
- 前体RB-Ph显示了大量的P溶解 (470-750 ppm),这归因于其高OM含量 (0.543%TOC).
结论:
- 有机物质在酸漏过程中提高的溶解度起着至关重要的作用.
- OM的分解释放有机酸和吸附的P,增加溶液P度.
- 在酸/固体比为2:1和2小时的保留时间下,可以达到最佳的P浸出条件.
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