Column study using modified banana pseudo stem as adsorbent for removal of Pb (II)

Pawar, Suman; Bagali, Shridhar Shrimant; Uma, K.; Gowrishankar, B. S.

doi:10.1016/j.heliyon.2023.e15469

Cited by 4 publications

(2 citation statements)

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“…From economic and environmental perspectives, adsorbent regeneration is significant. The adsorption process between the adsorbent and adsorbate can be better understood through regeneration studies. , Adsorbed Pb(II) creates a thin layer on the surface of LSH that may be dissolved effortlessly with HCl, so, 0.1 M HCl was used in the current work as a desorbing agent for regeneration . To test how well the adsorbent can maintain its metal adsorption capacity, we utilized it again for further adsorption/desorption cycles.…”

Section: Resultsmentioning

confidence: 99%

“…56,57 Adsorbed Pb(II) creates a thin layer on the surface of LSH that may be dissolved effortlessly with HCl, so, 0.1 M HCl was used in the current work as a desorbing agent for regeneration. 56 To test how well the adsorbent can maintain its metal adsorption capacity, we utilized it again for further adsorption/desorption cycles. Figure 15 depicts the outcome of LSH-assisted Pb(II) adsorption.…”

Section: Adsorption Isothermmentioning

confidence: 99%

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Removal of Toxic Lead from Wastewater by Lupinus albus Seed Hull

Abdel Hafez,

Abd-Rabboh,

Al-Marri

et al. 2023

ACS Omega

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In this work, we address two concerns at once: waste reduction and the development of a lead removal adsorbent. The potential of Lupinus albus seed hull (LSH) powder as an efficient, innovative, and economical adsorbent for Pb(II) absorption was examined in this study. Fourier transform infrared spectroscopy, energy-dispersive X-ray spectroscopy, and scanning electron microscopy investigations were used to determine the structural and morphological properties of the LSH adsorbent. The adsorption process was studied in batch mode with multiple process variables (adsorbent dosage of 4.0−20 g/L; solution pH of 1.5−5.5; contact time of 15−70 min). By fitting the equilibrium data to the Langmuir isotherm model, the maximum adsorption capacity of Pb(II) was 357.14 mg/g at optimized pH (5.5), LSH dose (0.4 g), and interaction time (60 min) with starting Pb(II) concentration of 50 mg L −1 . As for the reaction kinetics, the pseudosecond-order model was shown to be a convenient match. LSH can be reused after four desorption/adsorption cycles and has a high potential for eliminating Pb(II) from wastewater.

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Section: Resultsmentioning

confidence: 99%