Evaluation of the effects of surfactants in the water of Kim Nguu River, Hanoi

Tóm tắt

Surfactants are one of the new pollutants of current concern worldwide. Many studies show the toxicity of surfactants to human health and microorganisms. Kim Nguu River is one of Hanoi’s wastewater drainage rivers, and the number of residents in the river area is quite dense. In addition, around the river area, there are many hospitals, factories, and industrial parks in operation. Especially the 8/3 textile factory where a lot of detergents are produced due to the bleaching and dyeing processes in the river. In this study, the author conducted sampling and analyzed the concentration of pollutants in the Kim Nguu River according to the method of Kadokami. This is a comprehensive analysis method that is both qualitative and quantitative According to analysis, there are currently two substances belonging to the group of surfactants: Nonylphenol and 4-tert-Octyphenol with concentrations measured in 2018 and 2019 of 4.1-12.45 μg/L, 11.4 to 29.56 μg/ L and 2.02-3.21 μg/L and 3.95-6.7 μg/L. The concentration of surfactants in the Kim Nguu River tends to increase sharply over time, and the level of impact of the concentration of surfactants in the Kim Nguu River on the ecosystem is at a high level. Kim Ngu River is just one of Hanoi’s wastewater drainage rivers. Further research is needed on other wastewater drainage rivers to have clearer conclusions about the appearance of surfactants. in rivers draining wastewater.