Biomass Potential of Virgin and Calcined Tapioca (Cassava Starch) for the Removal of Sr(II) and Cs(I) from Aqueous Solutions

Abstract

In this study, we prepared novel adsorbents containing virgin and calcined tapioca products for removing strontium (Sr(II)) and cesium (Cs(I)) from aqueous solutions. The characteristics of tapioca, along with its capacity to adsorb Sr(II) and Cs(I), were evaluated. Multiple tapioca products were prepared and tested. The adsorbent prepared by boiling the tapioca followed by calcination at 300°C (BTP300) was the most effective. In addition, adsorption was affected by the adsorbent's surface properties. The Sr(II) and Cs(I) adsorbed onto BTP300 could be recovered through desorption by hydrochloric acid at different concentrations, which indicates that BTP300 can be used several times for adsorption/desorption. The results of this study suggest that BTP300, which was produced from tapioca biomass, can remove Sr(II) and Cs(I) from aqueous solutions.

Removing Sr(II) and Cs(I) from the Aqueous Phase Using Basil Seed and Elucidating the Adsorption Mechanism

“…The adsorption equilibrium of Sr(II) and Cs(I) onto the BS was reached at approximately 6 h and 1 h, respectively. Numerous studies reported previously that the adsorption equilibrium of Sr(II) and Cs(I) was 2 h, 3 h, and 24 h using rice straw-based biochar beads, brewer waste biomass, and BTP300 [10,15,26] and 30 min, 8 h, and 1 h using agriculture waste biomass, polyphenols enriched biomass-based adsorbent, and BTP300, respectively [7,15,31]. Therefore, BS could be a potential candidate adsorbent for Sr(II) and Cs(I) removal from an aqueous solution.…”

“…However, in these methods, microorganisms are required to immobilize on a carrier, such as ceramic [12,13]. Our previous studies also reported on the capability of Sr(II) and Cs(I) removal from the aqueous phase using disposed human hair or waste biomass tapioca [14,15].…”

Characterization of Modified Mechanically Activated Cassava Starch Magnetic Porous Microspheres and Its Adsorption for Cd(II) Ions

“…Other characteristic peaks did not change significantly, indicating that PEG/MeOH is physically porous and does not change the chemical structure of the adsorbent. In Figure 1 c, the FTIR spectrum of the AAM-MSMPM adsorbed with Cd(II) ions (namely Cd/AAM-MSMPM) showed that the peak at 1669 cm –1 moved toward 1681 cm –1 in the direction of the high wave, because the adsorption of Cd(II) ions leads to an increase in the spatial hindrance of the peak vibration [ 28 ].…”

“…During the process, N and Cd(II) ions shared electrons, decreasing N’s electron density, and increasing binding energy. In addition, after the AAM-MSMPM adsorbed Cd(II) ions, the binding energies of O=C and O–C increased by 0.19 eV and 0.09 eV, respectively, indicating that O shares electrons with Cd(II) ions in the adsorption process to form a coordination complex [ 28 ].…”

Assessment of Cd(II) adsorption capability and mechanism from aqueous phase using virgin and calcined lignin

“…Moreover, the physical and chemical properties of modified lignin have been investigated, and its adsorption capability for noble or heavy metal ions, organic compounds (dyes), and gases has been evaluated by many researchers (Celik and Demirbas, 2005;Dizhbite et al, 2013;Huang et al, 2019;Parajuli et al, 2005;Peternele et al, 1999;Supanchaiyamat et al, 2019;Wang et al, 2020). Among the modification methods of lignin, calcination is one of the most useful to improve the adsorption potential for waste biomass (Ogata et al, 2018(Ogata et al, , 2020. Berrima et al (2016) reported the adsorption capability of heavy metals using charcoal from lignin (the calcination temperature was only 600 C).…”