Environmental Significance of Formation and Transformation of Schwertmannite and Progress of Its Applied Research in Environmental Engineering
Schwertmannite is a Fe(Ⅲ)hydroxysulfate mineral,which is of great significance to controlling the migration and transformation of heavy metals(metalloids)in acid sulfate environments.Due to its strong binding affinity with heavy metals(metalloids)and catalysis,schwertmannite has broad application prospects in environmental engineering.In this paper,the formation and transformation of schwertmannite and their influencing factors were summarized,and the immobilization and remigration of heavy metals(metalloids)during the formation and transformation of schwertmannite were then discussed.The application of schwertmannite in environmental engineering were further elaborated,which provides reference for the control of environmental pollution by acid mine drainage(AMD)and research on the application of schwertmannite in environmental engineering.