Version 1
: Received: 26 August 2024 / Approved: 27 August 2024 / Online: 27 August 2024 (16:55:11 CEST)
How to cite:
Ferţu, D.-I.; Ciobanu, A.-A.; Cara, I. G.; Motrescu, I.; Ahmad, I.; Nacu, G.; Bulgariu, L. Circular Approach of Using Soybean Biomass for the Removal of Toxic Metal Ions from Wastewater. Preprints2024, 2024081927. https://doi.org/10.20944/preprints202408.1927.v1
Ferţu, D.-I.; Ciobanu, A.-A.; Cara, I. G.; Motrescu, I.; Ahmad, I.; Nacu, G.; Bulgariu, L. Circular Approach of Using Soybean Biomass for the Removal of Toxic Metal Ions from Wastewater. Preprints 2024, 2024081927. https://doi.org/10.20944/preprints202408.1927.v1
Ferţu, D.-I.; Ciobanu, A.-A.; Cara, I. G.; Motrescu, I.; Ahmad, I.; Nacu, G.; Bulgariu, L. Circular Approach of Using Soybean Biomass for the Removal of Toxic Metal Ions from Wastewater. Preprints2024, 2024081927. https://doi.org/10.20944/preprints202408.1927.v1
APA Style
Ferţu, D. I., Ciobanu, A. A., Cara, I. G., Motrescu, I., Ahmad, I., Nacu, G., & Bulgariu, L. (2024). Circular Approach of Using Soybean Biomass for the Removal of Toxic Metal Ions from Wastewater. Preprints. https://doi.org/10.20944/preprints202408.1927.v1
Chicago/Turabian Style
Ferţu, D., Gabriela Nacu and Laura Bulgariu. 2024 "Circular Approach of Using Soybean Biomass for the Removal of Toxic Metal Ions from Wastewater" Preprints. https://doi.org/10.20944/preprints202408.1927.v1
Abstract
The discharge of industrial effluents containing toxic heavy metals in water sources has serious consequences for human health and the environment, and biosorption appears to be an environmental-friendly and cost-effective alternative that can be used for wastewater treatment. The use of different types of agricultural waste as biosorbents for the removal of toxic heavy metals, although an alternative, is quite difficult to apply in practice because these wastes have many other uses. Based on these considerations, in this study, soybean biomass (SB), soybean waste biomass obtained from oil extraction (SBW) and biochar obtained from soybean waste pyrolysis (BC-SBW) were testes as biosorbents form the removal of Pb(II) and Cd(II) ions, in batch systems. Under optimal conditions (pH = 5.4, 4.0 g biosorbent/L, room temperature (25 ± 1 C), contact time = 180 min), the biosorption capacity increase in the order: SB < SBW < BC-SBW for both metal ions, indicating that BC-SBW has the highest efficiency in removing toxic heavy metals. In addition, experiments on wastewater samples have shown that, in addition to significant reducing the content of heavy metals, BC-SBW also significant improved other quality indicators (such as: pH, TSM, CCO-Cr, CBO5), compared to the other biosorbents (SB and SBW). Quantitative evaluation of the biosorptive performance of each biosorbent (SB, SBW and BC-SBW) shows that BC-SBW has a real chance of being used on an industrial scale for wastewater treatment. All these aspects allowed the development of a circular approach for the use of soybean biomass in the removal processes of toxic heavy metals. This approach minimizes the shortcomings of using biomass as a biosorbent and increase the chance of using these materials in industrial practice.
Keywords
soybean biomass-based biosorbents; toxic heavy metal ions; biosorption; wastewater treatment; circular approach
Subject
Environmental and Earth Sciences, Environmental Science
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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