Calcium ferrite nanoparticles were prepared by microwave-sonication assisted hydrothermal route obtained from mining wastes, marble dust and pyrite ash. The magnetism strength,
XRD, and FT-IR were performed. Different thermal modifications as microwave and autoclave following sintering applications were investigated. Scanning Electron Microscope images show that microwave treated calcium ferrite nanoparticles have formed as cubic shape while others have irregular-noncrystallized shapes. The arsenic removal was searched by calcium ferrite nanoparticules, found that microwave treated samples have higher capacity
