| This is an experimental study towards establishing “Avian Keratin Protein” fiber as an alternative environmentally benign technology for removal of heavy metals and contaminants from water. Composed of nearly 100% protein, namely β-keratin, the avian keratin fiber is an intricate network of fibers that are high in surface area and it consists of nano-sized pores. The sulfur containing β-keratin and the nano-sized pores render the material as an excellent biofilter for heavy metals such as lead, copper, cadmium, mercury and chromium. Experiments indicate that radionuclides like uranium could be removed from their low concentration aqueous solutions meeting EPA standards. Methods were established for processing the material for improved heavy metal binding characteristics. |
