Abstract:In order to summarize the characteristics of aluminum ash in whole aluminum industry, by collecting various types of aluminum ash samples from 24 large-scale aluminum industry enterprises in China, testing and analysis of pH value, salt content, element content, and heavy metals were conducted. The source characteristics, composition characteristics and pollution characteristics of aluminum ash in various industries were sorted out. In view of the active demand of domestic aluminum ash utilization and disposal market, the practical progress and development direction of large-scale utilization and disposal technology of aluminum ash were summarized in order to provide reference and guidance for utilization and disposal of aluminum ash in the whole industry.