Micro-structural and metal leachate analysis of concrete made with fungal treated waste foundry sand

► Paper presents study micro-structure and metal leachate of concrete made with fungal treated WFS. ► Concrete is made with 0%, 10%, 15% and 20% WFS as partial replacement of sand. ► Aspergillus niger removes above 90% metal content in treated leachate samples. ► SEM & EDS confirms biomineral formation by fungus results in concrete improvement.