相关实验视频

Updated: Feb 27, 2026

Optimized Procedure for Determining the Adsorption of Phosphonates onto Granular Ferric Hydroxide using a Miniaturized Phosphorus Determination Method

Optimized Procedure for Determining the Adsorption of Phosphonates onto Granular Ferric Hydroxide using a Miniaturized Phosphorus Determination Method

Published on: May 18, 2018

使用激活红泥同时固定可溶和在石材中的研究:机制和过程优化

Yi Wang¹, Yanhong Wang¹, Guohua Gu¹

¹School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China.

|February 26, 2026

概括

这项研究提出了一种可持续的方法,可以使用红色泥在石膏中固定和. "废物为废物"的方法有效地处理石,最大限度地减少环境风险.

科学领域:

环境科学环境科学
废物管理废物管理
材料科学材料科学材料科学

背景情况:

(PG) 是酸生产的副产品,含有有害的可溶 (P) 和 (F).
由于污染物逐渐释放,PG的液会给环境带来风险.
当前的PG处理方法在工业规模应用中往往是昂贵和低效的.

研究的目的:

开发一个低成本,可持续的过程,以长期固定在PG的P和F.
用工业废物 (红泥) 来处理其他废物 (PG).
确保经过处理的PG符合环境排放标准.

主要方法:

PG被用硫酸激活的红泥 (RM) 和氧化 (Ca(OH)2) 处理.
在现场诱导无形氨酸和铁酸盐聚合物的形成.
使用ICP-OES,XRD,SEM-EDS和泽塔潜力分析分析了固定化机制和相位演变.

主要成果:

在pH值8.5-9.0.0的情况下,经过处理的PG液符合P<0.5 mg/L和F<10 mg/L的环境要求.
固定P和F在长期堆叠期间表现出增强的稳定性.
该过程有效地减少了可溶性P和F,表明了持久的固定产品.

结论:

一个可持续的"用废物处理废物"的战略被证明是用于石膏的利用.
激活的红泥有效地固定可溶性P和F在phosphogypsum.
开发的方法为大规模的,对环境安全的石灰废物管理提供了可行的解决方案.

关键词:

固定化固定化固定化基石灰是一种.过程优化优化过程优化红色的泥,红色的泥.可溶性的P和F.

更多相关视频

Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent

Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent

Published on: February 21, 2017

Author Spotlight: Accelerating Discovery in Microporous Material Chemistry

Author Spotlight: Accelerating Discovery in Microporous Material Chemistry

Published on: October 6, 2023

相关概念视频

Factors Affecting Solubility

Factors Affecting Solubility

Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Chȃtelier’s principle. Consider the dissolution of silver iodide:

Hydration of Cement

Hydration of Cement

Hydration of cement is a chemical reaction between cement particles and water. This process occurs primarily through two mechanisms: through-solution and topochemical. In the through-solution process, anhydrous compounds dissolve into their constituents, hydrates form in the solution, and then precipitate from the supersaturated solution. The topochemical process involves solid-state reactions at the cement particle surface. The through-solution process dominates the topochemical process at the...