Packed bed redistribution system for Cr(III) and Cr(VI) biosorption by Saccharomyces cerevisiae

Ramírez-Carmona, Margarita; Silva, Mônica A. Pereira da; Leite, Selma Gomes Ferreira; Vasco-Echeverri, Oscar; Ocampo-López, Carlos

doi:10.1016/j.jtice.2011.12.002

Cited by 32 publications

(5 citation statements)

References 25 publications

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“…In addition, Cr(VI) causes serious health problems, including burns and chronic allergic contact dermatitis, epigastric pain, nausea, vomiting, severe diarrhoea, kidney and gastric damage, epidermal irritation and haemorrhage if ingested. The main sources of Cr(VI) contamination are electroplating, leather tanning industry, paints and pigments industry, ceramic and glass manufacturing, etc . According to the US Environmental Protection Agency, the maximum permissible level of Cr(VI) for discharge into surface waters is 0.1 mg L −1 and 0.05 mg L −1 is the maximum allowed Cr(VI) concentration in drinking water…”

Section: Introductionmentioning

confidence: 99%

Novel hexamethylene diamine-functionalized macroporous copolymer for chromium removal from aqueous solutions

et al. 2017

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Macroporous copolymers of poly[(glycidyl methacrylate)-co-(ethylene glycol dimethacrylate)] (PGME) with various crosslinker (ethylene glycol dimethacrylate) concentrations and porosity parameters and additionally functionalized with hexamethylene diamine (PGME-HD) were tested as potential Cr(VI) oxyanion sorbents from aqueous solutions. Kinetics of Cr(VI) sorptionwas investigated in the temperature range 298-343 K and the results were fitted to chemical reaction and particle diffusion models. The Cr(VI) sorption obeys the pseudo-second-order model with definite influence of pore diffusion. A temperature rise promotes chromium removal, with a maximum experimental uptake capacity of 4.21 mmol g −1 at 343 K for the sample with the highest amino group concentration. Equilibrium data were analysed with Langmuir, Freundlich and Temkin adsorption isotherm models. Thermodynamic parameters, i.e. Gibbs free energy ( G 0 ), enthalpy ( H 0 ) and entropy change ( S 0 ) and activation energy of sorption (E a ), were calculated. The Cr(VI) adsorption onto PGME-HD was found to be spontaneous and endothermic, with increased randomness in the system. Desorption experiments show that chromium anion sorption was reversible and the PGME-HD sample GMA 60 HD was easily regenerated with 0.1 mol L −1 NaOH up to 90% recovery in the fourth sorption/desorption cycle. In the fifth cycle, a substantial sorption loss of 37% was observed.

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Section: Introductionmentioning

confidence: 99%

Novel hexamethylene diamine-functionalized macroporous copolymer for chromium removal from aqueous solutions

et al. 2017

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“…The second phase is the concentration of metals in the solution, where the biosorption/desorption process is employed. Biosorption is carried out in continuous systems in packed bed columns with microorganisms immobilized in porous matrices, as shown in the study by Ramírez et al [22]. The use of residual yeast or fungi from the [23] industry is recommended, especially from the brewing industry, due to their volume of generation, easy acquisition, and low cost.…”

Section: Recovery Of Metals Of Interest From Solid Matricesmentioning

confidence: 99%

Bioleaching Techniques for Sustainable Recovery of Metals from Solid Matrices

et al. 2023

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This review paper explores the potential of bioleaching as a sustainable alternative for recovering metals from solid matrices. With over 12 billion tons of solid waste annually worldwide, bioleaching provides a promising opportunity to extract metals from solid waste, avoiding harmful chemical processes. It explains bacterial and fungal bioleaching techniques that extract copper, gold, zinc, and other metals from solid matrices. Fungal bioleaching effectively extracts a wide range of valuable metals, including nickel, vanadium, aluminium, molybdenum, cobalt, iron, manganese, silver, platinum, and palladium. The review highlights different solid matrices with metal contents that have the potential to be recovered by bioleaching, presenting promising bioprocess alternatives to current industrially available technologies for metal recovery. The optimal conditions for bioleaching, including pH, temperature, agitation–aeration, and pulp density are also discussed. The review shows that bioleaching has the potential to play a crucial role in the transition to a more sustainable and circular economy by providing an efficient, cost-effective, and environmentally friendly method for metal recovery from solid matrices.

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“…In these studies regarding the metal biosorption from WPCBs, the most critical process parameters include the solution’s pH, which strongly influences the speciation of metal ions and the surface polarity of the biosorbent. The cell walls of microorganisms like yeast or microalgae contain different polysaccharides, which exhibit ion exchange properties [ 76 ]. As the literature suggests, biosorbents often contain carboxylic, amine, hydroxyl, and thiol groups, and their acid-base properties are highly dependent on pH, modulating the affinity of these functional groups for other metal ions, and therefore, their selectivity for them as well [ 77 ].…”

Section: Recovery Systemsmentioning

confidence: 99%

“…Biosorption is typically conducted in continuous systems using packed bed columns, with microorganisms immobilized in porous matrices, as illustrated in a study by Ref. [ 76 ]. The use of residual biomass from various industries is recommended due to its abundant availability, ease of acquisition, and cost-effectiveness ratio [ 8 ].…”

Section: Recovery Systemsmentioning

confidence: 99%

From E-Waste to High-Value Materials: Sustainable Synthesis of Metal, Metal Oxide, and MOF Nanoparticles from Waste Printed Circuit Boards

Pineda-Vásquez,

Rendón-Castrillón,

Ramírez-Carmona

et al. 2023

Nanomaterials

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The exponential growth of electronic waste (e-waste) has raised significant environmental concerns, with projections indicating a surge to 74.7 million metric tons of e-waste generated by 2030. Waste printed circuit boards (WPCBs), constituting approximately 10% of all e-waste, are particularly intriguing due to their high content of valuable metals and rare earth elements. However, the presence of hazardous elements necessitates sustainable recycling strategies. This review explores innovative approaches to sustainable metal nanoparticle synthesis from WPCBs. Efficient metal recovery from WPCBs begins with disassembly and the utilization of advanced equipment for optimal separation. Various pretreatment techniques, including selective leaching and magnetic separation, enhance metal recovery efficiency. Green recovery systems such as biohydrometallurgy offer eco-friendly alternatives, with high selectivity. Converting metal ions into nanoparticles involves concentration and transformation methods like chemical precipitation, electrowinning, and dialysis. These methods are vital for transforming recovered metal ions into valuable nanoparticles, promoting sustainable resource utilization and eco-friendly e-waste recycling. Sustainable green synthesis methods utilizing natural sources, including microorganisms and plants, are discussed, with a focus on their applications in producing well-defined nanoparticles. Nanoparticles derived from WPCBs find valuable applications in drug delivery, microelectronics, antimicrobial materials, environmental remediation, diagnostics, catalysis, agriculture, etc. They contribute to eco-friendly wastewater treatment, photocatalysis, protective coatings, and biomedicine. The important implications of this review lie in its identification of sustainable metal nanoparticle synthesis from WPCBs as a pivotal solution to e-waste environmental concerns, paving the way for eco-friendly recycling practices and the supply of valuable materials for diverse industrial applications.

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Packed bed redistribution system for Cr(III) and Cr(VI) biosorption by Saccharomyces cerevisiae

Cited by 32 publications

References 25 publications

Novel hexamethylene diamine-functionalized macroporous copolymer for chromium removal from aqueous solutions

Novel hexamethylene diamine-functionalized macroporous copolymer for chromium removal from aqueous solutions

Bioleaching Techniques for Sustainable Recovery of Metals from Solid Matrices

From E-Waste to High-Value Materials: Sustainable Synthesis of Metal, Metal Oxide, and MOF Nanoparticles from Waste Printed Circuit Boards

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