An Effectual Biosorbent Substance for Removal of Manganese Ions from Aquatic Environment: A Promising Environmental Remediation Study with Activated Coastal Waste of Zostera marina Plant

Abstract

<jats:p>In the present research paper, a biosorptive remediation practice for an aqueous medium sample polluted with manganese ions was implemented using the activated coastal waste of the <jats:italic>Zostera marina</jats:italic> plant. This is the first report in the literature on the utilization of current modified biological waste as a biosorbent substance for the removal of manganese ions from the water environment. The analyses of biosorbent characterization, environmental condition, kinetic, equilibrium, and comparison were performed to introduce the ability of prepared biosorbent for the removal of manganese from the aquatic medium. The biosorbent matter has a rough surface with numerous cavities and cracks and various functional groups for the biosorption of manganese. The environmental conditions significantly affected the manganese purification process, and the optimum working conditions were determined to be biosorbent quantity of 10 mg, pH of 6, manganese concentration of 30 mg L<jats:sup>-1</jats:sup>, and time of 60 min. The pseudo-second-order model best explained the kinetic data of biosorption operation. The biosorption equilibrium data were best described by the Freundlich isotherm. According to the Langmuir equilibrium model, the maximum purification potency was estimated to be 120.6 mg g<jats:sup>-1</jats:sup>. The comparison work revealed that the activated coastal waste of the <jats:italic>Z</jats:italic>. <jats:italic>marina</jats:italic> plant could be utilized as an effectual and promising biosorbent substance for the remediation of an aquatic environment contaminated with manganese ions.</jats:p>

A review of the application of low-cost adsorbents as an alternative method for biosorption of contaminants present in water

“…Finally, adsorption is a process that requires a relatively simple operational structure, without the need to add nutrients to the process and because it is most often a process with interactions of a physical nature, desorption through regeneration and reuse of the adsorbent is a possibility (Jacob et al, 2018;Liu et al, 2018;Aryal, 2021). As a result, several materials began to be studied and made viable as potential biosorbents for water decontamination (de Freitas et al, 2019;Wang, Qiu et al, 2019;Cui et al, 2020;Deniz & Tezel, 2020). For a material to be considered an excellent adsorbent it must present certain properties, such as high selectivity for a wide range of contaminants, rapid kinetics, high physical, chemical, and mechanical stability, good removal efficiency in uncontrolled media conditions, good textural characteristics and low dependence on adsorption parameters such as pH, temperature, adsorbent dosage, concentration, among others (Salman et al, 2015).…”

Biossorção: uma revisão sobre métodos alternativos promissores no tratamento de águas residuais

“…As vantagens do processo são a operação simples, sem a necessidade de inserção de nutrientes ao meio e possibilidade de regeneração do biossorvente [37][38][39]. Dessa forma, vários métodos vêm sendo desenvolvidos baseados na biossorção demonstrando uma efetividade nos resultados, um processo economicamente viável e uma aceitabilidade ambiental [40][41][42][43].…”

Mechanism of Permanganate Biosorption by Fermentation Biowaste

“…In recent years, biosorption has emerged as a promising alternative to traditional physical and chemical treatments. Biosorption, utilizing inactive and nonliving microbial biomass as adsorbents, stands out for its cost-effectiveness and superior performance compared to other adsorbents [16][17][18]. Most studies on manganese biosorption demonstrate that Mn(II) can be effectively removed from the aqueous phase through an adsorption mechanism, wherein cationic Mn(II) ions bind to negatively charged groups present in biomaterials.…”