在水处理过程中使用性声解去除HMX,RDX和TNT
Seung-Woo Nam1, Jonghun Han1, Jun-Yeoul Choi1
1Department of Chemistry and Environmental Sciences, Korea Army Academy at Young-Cheon, Young-Cheon, Gyeongbuk, Republic of Korea.
高频超声波有效降解水中的HMX,RDX和TNT等爆炸性污染物. 性条件显著提高了去除速度,提供了一个有前途的水处理解决方案.
科学领域:
- 环境化学环境化学
- 水处理技术水处理技术
- 声化学 声化学 声化学
背景情况:
- 六-1,3,5-三-1,3,5-三 (HMX),循环三甲三胺 (RDX) 和三甲 (TNT) 是水系统中存在的持久性有机污染物.
- 这些爆炸性化合物带来了生态毒理学风险和人类健康问题.
- 传统的处理方法与强硬的有机污染物作斗争,需要先进的方法.
研究的目的:
- 研究声化学反应对降解HMX,RDX和TNT的有效性.
- 优化超声波处理条件,包括频率和pH值.
- 分析降解副产品,并探索与凝结结合治疗.
主要方法:
- 使用高频超声波 (580 kHz) 的声解.
- 优化pH值和氧化 (NaOH) 度.
- 液体染色学-双重质谱学 (LC-MS/MS) 用于副产品分析.
- 结合性声解和凝固的评估.
主要成果:
- 高频超声波降解了HMX,RDX和TNT,在初始条件下~30%的去除.
- 较高的pH (>12) 与5-20mM NaOH显著增强了超过95%的去除.
- 在60分钟内完全清除RDX和TNT,在150分钟内完全清除HMX.
- LC-MS/MS确定了涉及OH基化和基组还原的降解途径.
结论:
- 性声解是一种高效的方法,可以从水中去除爆炸性污染物HMX,RDX和TNT.
- 优化条件 (高pH值,特定NaOH度) 对于高效的降解至关重要.
- 将性声解与凝结结合为综合性水处理提供了一个可行的策略.
更多相关视频
09:49Use of a Battery of Chemical and Ecotoxicological Methods for the Assessment of the Efficacy of Wastewater Treatment Processes to Remove Estrogenic Potency
Published on: September 11, 2016
08:49Vegetated Treatment Systems for Removing Contaminants Associated with Surface Water Toxicity in Agriculture and Urban Runoff
Published on: May 15, 2017
相关概念视频
06:35Implementation of a Hyperbolic Vortex Plasma Reactor for the Removal of Micropollutants in Water
09:49Use of a Battery of Chemical and Ecotoxicological Methods for the Assessment of the Efficacy of Wastewater Treatment Processes to Remove Estrogenic Potency
08:49Vegetated Treatment Systems for Removing Contaminants Associated with Surface Water Toxicity in Agriculture and Urban Runoff
10:38In Vivo Alkaline Comet Assay and Enzyme-modified Alkaline Comet Assay for Measuring DNA Strand Breaks and Oxidative DNA Damage in Rat Liver
06:18Assessing Lysosomal Alkalinization in the Intestine of Live Caenorhabditis elegans
States of Water
Water freezes when the intermolecular forces are greater than the kinetic energy. Unlike most other substances, water is less dense in its solid state than in its liquid state. This is because each water molecule can form...
