Host: The Japanese Society of Toxicology
Name : The 49th Annual Meeting of the Japanese Society of Toxicology
Date : June 30, 2022 - July 02, 2022
Environmental problems related to water pollution are also included in the SDGs as issue to be solved all over the world. Certain regions in India have reported the harmful impacts of arsenic contamination in groundwater and other water supplies on human health. Numerous industries rely on dyes to color our clothing, food, and houses, and even small amounts of dye wastewater can lead to specific types of water pollution. Wastewater regulations are not stringently enforced, thus, resulting in disorganized wastewater treatment, which leads to dye pollution of lakes or rivers. Currently, expensive and highly sophisticated equipment are used to reduce the toxicity of these contaminants, but do not address the problems mentioned above. This study aimed to explore and verify the practical feasibility of a method that involves the use of tea leaves as an adsorbent for easy implementation in terms of treatment costs, application environments, and technologies.
Used tea leaves were prepared from the 21 most consumed varieties of tea worldwide. The leaves were used as an adsorbent. For the adsorbates, 1 anionic dye and 4 cationic dyes were used for dyes and 6 toxic metals. Dye and metal concentrations were analyzed.
Many tea varieties displayed suitability for adsorption, with high adsorption capacities observed for cationic dyes and 3 metals. The physicochemical characterization and adsorption parameters were examined and practical knowledge for predicting adsorption mechanisms was obtained. This presentation will explain the results of detailed data analyses and describe further experiments for practical application.
