乳酸通过微波诱导的活性碳催化氧化过程的高效降解
Fanfan Liang1, Yungen Liu1, Silin Yang2
1College of Soil and Water Conservation, Southwest Forestry University, Kunming 650224, China.
微波技术有效地处理耐火咖啡废水. 微波激活碳氧化物 (AC-CaO) 方法快速降解乳酸90%,产生CO2和H2O.
科学领域:
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
- 材料科学 材料科学 材料科学
背景情况:
- 咖啡废水由于高度的乳酸等生物毒性化合物而带来了重大环境挑战.
- 传统的处理方法与耐火有机污染物作斗争,需要先进的氧化过程.
研究的目的:
- 研究微波辅助技术在耐火咖啡废水中处理高度乳酸的有效性.
- 探索活性炭 (AC) 和氧化 (CaO) 在增强乳酸降解中的协同作用.
主要方法:
- 微波辐射900W的应用在咖啡废水中,其中含有约2000mg/L的乳酸.
- 使用活性炭 (AC) 减轻热点和CaO促进降解过程.
- 乳酸度降低的分析和降解副产品 (CO2和H2O) 的识别.
主要成果:
- 乳酸度从2000毫克/升降至200毫克/升,达到90%的清除率.
- 微波-AC-CaO方法证明了乳酸的快速降解.
- 在交流热点上产生的自由基,由微波和CaO促进,是降解机制的关键.
结论:
- 微波-AC-CaO方法为咖啡废水中的生物毒性乳酸处理提供了一种高效和快速的方法.
- 通过使用过渡金属氧化物修改AC,可以进一步提高降解率.
- 这项技术显示了咖啡行业可持续废水处理的前景.
更多相关视频
10:44Preparation of Biomass-based Mesoporous Carbon with Higher Nitrogen-/Oxygen-chelating Adsorption for CuII Through Microwave Pre-Pyrolysis
Published on: February 12, 2019
08:15Temperature-programmed Deoxygenation of Acetic Acid on Molybdenum Carbide Catalysts
Published on: February 7, 2017
相关概念视频
Loss of Carboxy Group as CO2: Decarboxylation of Malonic Acid Derivatives
Loss of Carboxy Group as CO2: Decarboxylation of β-Ketoacids
Oxidations of Aldehydes and Ketones to Carboxylic Acids
Aldehydes readily undergo oxidation in strong oxidizing agents such as potassium permanganate and chromic acid. The oxidation can also be carried out using mild oxidizing agents such as silver oxide. In fact, aldehydes can be easily oxidized...
Oxidation of Alcohols
The process of oxidation in a chemical reaction is observed in any of the three forms:
Reactions of Aldehydes and Ketones: Baeyer–Villiger Oxidation
The carbonyl center is...
Pyruvate Oxidation
First, the enzyme pyruvate dehydrogenase removes the carboxyl group from pyruvate and releases it as carbon dioxide. The stripped molecule is then oxidized and releases electrons, which are then picked up by NAD+...
