报告题目：Effect of Wet Peroxide Oxidation in Removing the Organic Material During Analysis of Microplastics in Water
报 告 人：Hossein Ganjidoust 教授（Tarbiat Modares University）
报告地点：高水平实验楼B座一楼报告厅
报告时间：2024年4月29日（星期一）下午15：30-16：30
报告摘要：
Microplastics (MPs) have become a significant problem in recent years; this pollution causes harm not only to animals and our environment, and humans. Because of their small size, they can quickly spread through the atmosphere, water (sea, ocean, river, lakes), and soil. They have been found in animal and human organisms, and recent studies have shown that even MPs are found in human blood. They cause many diseases, such as cancer, among other health problems. Hence, finding solutions to remove these particles should be our priority. The first step is to identify and recognize their sizes, shapes, and types of polymers. Due to the lack of standardized methodologies in microplastic research in recent years, each study uses different reagents to remove organic matter from microplastics ?surfaces. From literature review: The most popular reagent used to remove organic matter is hydrogen peroxide oxidation. This study investigates the effect of Wet peroxide oxidation for removing the organic material during the analysis of microplastics, observed the effect of hydrogen peroxide oxidation on color, size, and Fourier-transform infrared spectroscopy, and found a way to optimize the usage of H2O2 as a reagent in future analysis. This paper aims to maximize organic matter removal while minimizing the destruction of microplastics. As a result, humic acid was used as an organic matter, and PVC was used as a microplastic polymer. The variables of this study H2O2 are time (6, 12, 24, and 48h) and temperature (25, 40, 60, and 70 ?C). According to the results, temperatures of 40 and 60 degrees Celsius in 24 hours have the highest effect of removing organic matter, the least amount of area change, and the most minor effect on microplastic bonding, respectively, and are chosen as the optimal time and temperature.
报告人简介：
Hossein Ganjidoust教授，男，1953年生于伊朗德黑兰，博士学历，前伊朗驻华使馆科技参赞，现任职伊朗塔比亚特?莫达雷斯大学(Tarbiat Modares University)土木与环境工程学院环境工程系。学术兼职: 美国化学学会(ACS)、美国水利工程协会(AWWA)、环境科学与技术杂志社(EST)、水科学与技术杂志社(WST)、国际水质协会(IAWQ)、水环境与技术杂志社(WET)。Hossein Ganjidoust教授从事教学研究工作超过三十年，主持研究项目二十多项，研究领域主要为水与污水处理，工业废水处理、工业和危险废物处理与处置等。发表国际与ISI期刊论文超过120篇。
化学化工学院（碳中和未来技术学院）
2024年4月24日
