Open Access Research Paper Views (847) Biosorption of copper from wastewater by Bacillus subtilis in a packed bed bioreactor Korrapati Narasimhulu, Y. Pydi Setty J. Biodiv. & Environ. Sci. 2(11), 23-30, November 2012. Keywords: Biosorbent, Biosorption, heavy metals, Immobilization, Packed bed bioreactor Details