ABSTRACT

The presence of pharmaceutical pollutants, including antibiotic contaminants in the environment is one of the most important issues in the world today. We focused on elimination of amoxicillin (AMX) from aqueous media in micro Channel Y-Y shaped. The kinetic studies showed that the reaction kinetic was very fast and extraction equilibrium is attained within 20 s. Key operational parameters such as feed concentration, pH of aqueous solution, and extractant concentration and residence time were optimized. The maximum rate of AMX removal was determined 98.2%. Overall volumetric mass transfer coefficient of amoxicillin $k_L\alpha$, is perused to specify the mass transfer performance. Much higher amoxicillin $k_L\alpha$ values acquired in the micro process compare with conventional extraction approved the amoxicillin is easily extracted with a higher ratio at micro-flow. The studies demonstrated that the micro solvent extraction process has considerable potential for environmentally friendly and would be a promising method for wastewater treatment of complex systems.

Highlights

• On-chip liquid-phase microextraction coupled with UV-VIS was introduced.

• Extraction percentage of 98.2% was obtained using MDEHPA under best conditions.

• Microfluidic shows the considerable potential for environmentally friendly and amoxicillin removal from aqueous media.

摘要

药物污染物的存在，包括环境中的抗生素污染物，是当今世界上最重要的问题之一。我们专注于从 YY 形微通道的水介质中消除阿莫西林 (AMX)。动力学研究表明反应动力学非常快，萃取平衡在20 s内达到。对进料浓度、水溶液的 pH 值、萃取剂浓度和停留时间等关键操作参数进行了优化。AMX 的最大去除率确定为 98.2%。阿莫西林的总体积传质系数${ķ}_{\mathrm{大号}}\alpha$, 用于指定传质性能。高得多的阿莫西林${ķ}_{\mathrm{大号}}\alpha$在微流程中获得的值与经批准的常规提取相比，阿莫西林很容易在微流量下以更高的比例提取。研究表明，微溶剂萃取工艺具有相当大的环境友好潜力，将是一种有前途的复杂系统废水处理方法。

强调

• 介绍了片上液相微萃取与UV-VIS耦合。

• 在最佳条件下使用 MDHPA 可获得 98.2% 的萃取率。

• 微流体显示了从水介质中去除环境友好和阿莫西林的巨大潜力。