Application of biochar for the removal of actinides and lanthanides from aqueous solutions

Chapter Authors: Amalia L. Bursztyn Fuentes, Beatrice Arwenyo, Andie L.M. Nanney, Arissa Ramirez, Hailey Jamison, Beverly Venson, Dinesh Mohan, Todd E. Mlsna, Chanaka Navarathna


Lanthanide and actinide (mainly from nuclear waste) removal and recovery from aqueous media have recently gained significant attention due to severe health issues related to chronic exposure. These elements tend to be expensive to recover and reuse. Critical waste management is needed for both safe waste disposal and recycling of these elements. Among the different removal techniques, adsorption with biochars and engineered biochars stands out because of its simplicity, cost-effectiveness, and environmentally friendly approach. In this chapter, we have compiled information on biochar-based adsorbents used for lanthanide and actinide removal, with a focus on the experimental conditions typically used in studies, including pH, adsorbent dosage, ionic strength, competition with other ions, and contact time. A summary of sorption kinetics, isotherm, and thermodynamics, and regeneration studies and an overview of the sorption mechanisms are also presented. Ultimately, this chapter aims to provide insight into the significant factors that can affect lanthanide and actinide removal and recovery with biochar and engineered biochars and highlight knowledge gaps and priority areas for future research.

Bibliographical metadata

Pages 321-359
Related Faculties/Schools

aTechnological Center of Mineral Resources and Ceramics (CETMIC – CIC/CONICET/UNLP), M.B. Gonnet, Argentina
bDepartment of Chemistry, Mississippi State University, Mississippi State, MS, United States
cDepartment of Chemistry, Gulu University, Gulu, Uganda
dDepartment of Biochemistry, Molecular Biology, Entomology and Plant Pathology, Mississippi State University, Mississippi State, MS, United States
eDepartment of Biological Sciences, Mississippi State University, Mississippi State, MS, United States
fSchool of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India