Green Sorbents for Radioactive Pollutants Removal from Natural Water

Gupta, Dharmendra K.; Воронина, А. В.; Семенищев, В. С.; Chatterjee, Soumya

doi:10.1007/978-3-319-92162-4_12

Cited by 5 publications

(3 citation statements)

References 69 publications

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“…43 However, that value was near the average of activated carbon CEC, which is 1.63 mmol g À1 . 20,[44][45][46] Equilibrium studies of the 3-MCPD adsorption using treated activated carbon…”

Section: Activated Carbon's Ph Pzc and Cecmentioning

confidence: 99%

The removal of 3-monochloropropane-1,2-diol ester and glycidyl ester from refined-bleached and deodorized palm oil using activated carbon

et al. 2021

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“…43 However, that value was near the average of activated carbon CEC, which is 1.63 mmol g À1 . 20,[44][45][46] Equilibrium studies of the 3-MCPD adsorption using treated activated carbon…”

Section: Activated Carbon's Ph Pzc and Cecmentioning

confidence: 99%

The removal of 3-monochloropropane-1,2-diol ester and glycidyl ester from refined-bleached and deodorized palm oil using activated carbon

et al. 2021

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“…, UO 2 (CO 3 ) 3 4− , UO 2 CO 3 (aq), etc [8][9][10] . Second, calcium and alkaline earth metal ions in the environment, rocks and soil rich in carbonate minerals, after the erosion of rainwater and river water, some carbonate minerals will be washed into small particles, the surface portion will dissolve at the same time [11] . Therefore, natural water contains a certain amount of alkaline earth metal ions such as Ca 2+ and Mg 2+ .…”

Section: −mentioning

confidence: 99%

Adsorption of U(VI) onto Amidoxime-functionalized Hydrothermal Carbon in the Presence of Ca-U(VI)-CO3 Complexes

Dong¹,

Zhang²,

Zhou³

et al. 2020

Res. Appl. Mater. Sci.

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The aim is collecting uranium from groundwater in which uranium mainly exists in negative species, the amidoxime-functionalized hydrothermal carbon (AO-HTC) was synthesized. From the results of N2 adsorption-desorption and SEM, AO-HTC is a small spherical surface; FT-IR and Elemental analysis showed that the amidoxime group was successfully grafted onto the surface of the material; Zeta-potential measurement showed that the amino nitrogen atom is protonated in the oxime group. The optimum pH value of AO-HTC for uranium adsorption is 6.0, and the adsorption equilibrium is reached within 80 min, which is in accordance with the pseudo-second order adsorption kinetic model. The adsorption of uranium by AO-HTC accords with the Langmuir isotherm adsorption model, and the single-layer saturated adsorption capacity is 254.13mg·g-1. The thermodynamic parameters calculated by the adsorption isotherm indicate that AO-HTC adsorption of uranium is a spontaneous endothermic chemical process and Carbonate ion, calcium ion and humic acid concentration have great influence on uranium adsorption. The experiments results show that AO-HTC has the potential to elimination of U(VI) from groundwater.

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“…1 It is also a potential important catalyst with practical advantages not found among transition metals. 2 However, uranium presents high radiologic and chemical toxicity 3 and can be mobile in the water system and migrate through food chains, 4 imposing severe threats to the environment and the human health. In particular, uranium presents renal, developmental, and reproductive toxicity and causes diminished bone growth and DNA damage, as obtained from experimental animal studies and human epidemiology.…”

Section: Introductionmentioning

confidence: 99%

Recycling of Brewer’s Spent Grain as a Biosorbent by Nitro-Oxidation for Uranyl Ion Removal from Wastewater

Wenzel

Paasch

et al. 2021

ACS Omega

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Developing biosorbents derived from agro-industrial biomass is considered as an economic and sustainable method for dealing with uraniumcontaminated wastewater. The present study explores the feasibility of oxidizing a representative protein-rich biomass, brewer's spent grain (BSG), to an effective and reusable uranyl ion adsorbent to reduce the cost and waste generation during water treatment. The unique composition of BSG favors the oxidation process and yields in a high carboxyl group content (1.3 mmol/g) of the biosorbent. This makes BSG a cheap, sustainable, and suitable raw material independent from pretreatment. The oxidized brewer's spent grain (OBSG) presents a high adsorption capacity of U(VI) of 297.3 mg/g (c 0 (U) = 900 mg/L, pH = 4.7) and fast adsorption kinetics (1 h) compared with other biosorbents reported in the literature. Infrared spectra (Fourier transform infrared), 13 C solid-state nuclear magnetic resonance spectra, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and thermogravimetric analysis were employed to characterize the biosorbents and reveal the adsorption mechanisms. The desorption and reusability of OBSG were tested for five cycles, resulting in a remaining adsorption of U(VI) of 100.3 mg/g and a desorption ratio of 89%. This study offers a viable and sustainable approach to convert agro-industrial waste into effective and reusable biosorbents for uranium removal from wastewater.

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Green Sorbents for Radioactive Pollutants Removal from Natural Water

Cited by 5 publications

References 69 publications

The removal of 3-monochloropropane-1,2-diol ester and glycidyl ester from refined-bleached and deodorized palm oil using activated carbon

The removal of 3-monochloropropane-1,2-diol ester and glycidyl ester from refined-bleached and deodorized palm oil using activated carbon

Adsorption of U(VI) onto Amidoxime-functionalized Hydrothermal Carbon in the Presence of Ca-U(VI)-CO3 Complexes

Recycling of Brewer’s Spent Grain as a Biosorbent by Nitro-Oxidation for Uranyl Ion Removal from Wastewater

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