Qiu and co-workers 27 studied the adsorption of strontium by living Saccharomyces cerevisiae. They observed the maximum capacity of 142.5 mg/g at room temperature and fitting adsorption isotherms well with a pseudo-second-order (PSO) kinetics model. SiMaC, prepared with in situ polymerization to adsorb strontium. 26 used a carboxyl functionalized resin, i.e. Also, the different synthesis procedures using biopolymer namely chitosan were applied to the adsorption of strontium from aqueous solutions 20, 21, 22, 23, 24, 25. There is a wide variety of microorganisms including bacteria, fungi, and algae that are used as metal adsorbents 14, 15, 16, 17, 18, 19. Water and wastewater industries use adsorption as one of the most important separation and purification processes to remove color, odor, and organic pollution 7, 8, 9, 10, 11, 12, 13. The beta-emitting strontium (Sr)-90 radionuclide has a half-life of approximately 28 years, and it is produced by nuclear fission reactions. Keeping radioactive substances contained is a crucial safety issue for nuclear industries 1, 2, 3, 4, 5, 6.
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