Biological Treatment on Reducing the Radioactive Elements Content of Phosphogypsum Resulted During Abu Zaabal Phosphoric Acid Production for Safe Applications

Abstract

Bioremediation of radioactive waste or bioremediation of radionuclides is an application of bioremediation based on the use of biological agent’s bacteria, plants and fungi (natural or genetically modified) to catalyze chemical reactions that allow the decontamination of sites affected by radionuclides. Biosorption is a physiochemical process that occurs naturally in certain biomass which allows it to passively concentrate and bind contaminants onto its cellular structure. Removing toxic heavy metals from industrial wastewater and aid in environmental remediation. Bioaccumulation refers to the accumulation of substances, in an organism. Bioaccumulation occurs when an organism absorbs a - possibly toxic - substance at a rate faster than that at which the substance is lost by catabolism and excretion. Biosorption suggests many advantages than other techniques for the removal of metal ions as: 1. Rich sources and chemically stable. 2. A high surface area (porous). 3. High efficiency to treat low concentrations of heavy metals. 4. Easy to produce high concentrations of metal ion adsorption active groups.