Treatment of Common Heavy Metal Waste Liquids in Chemical Analysis Laboratories

Abstract

This paper reviews the sources, main components and characteristics, hazards, and treatment technologies of heavy metal waste liquid in chemical analysis laboratories. Common treatment methods such as chemical precipitation, ion exchange, adsorption, and membrane separation are detailed, and their advantages and disadvantages are compared. Furthermore, the paper analyzes the treatment of heavy metal waste liquid from both environmental and economic perspectives, and discusses the importance of constructing a comprehensive management system for heavy metal waste liquid treatment, including waste liquid classification, collection and storage, personnel training and accountability, and the improvement of supervision and management systems. The aim is to provide theoretical reference and practical guidance for the treatment of heavy metal waste liquid in laboratories.