Recent advances on elemental biosorption

Escudero, Leticia Belén; Quintas, Pamela Y.; Wuilloud, Rodolfo G.; Dotto, Guilherme L.

doi:10.1007/s10311-018-0816-6

Cited by 87 publications

(27 citation statements)

References 137 publications

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“…From one side, this is an interesting characteristic, since these organic compounds contain a series of functional groups which can act as active sites for biosorption. On the other side, the structure and functionality of these organic molecules can be easily damaged by the temperature, pH, air humidity, oxygen, and others (Escudero et al, 2018). Because of this, a detailed preparation of the leaf-derived biosorbents is fundamental.…”

Section: Preparation Of Leaf-derived Biosorbentsmentioning

confidence: 99%

Removal of various contaminants from water by renewable lignocellulose-derived biosorbents: a comprehensive and critical review

Tran

Nguyen

Woo

et al. 2019

Critical Reviews in Environmental Science and Technology

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Contaminants in water bodies cause potential health risks for humans and great environmental threats. Therefore, the development and exploration of low-cost, promising adsorbents to remove contaminants from water resources as a sustainable option is one focus of the scientific community. Here, we conducted a critical review regarding the application of pristine and modified/treated biosorbents derived from leaves for the removal of various contaminants. These include potentially toxic cationic and oxyanionic metal ions, radioactive metal ions, rare earth elements, organic cationic and anionic dyes, phosphate, ammonium, and fluoride from water media. Similar to lignocellulosebased biosorbents, leaf-based biosorbents exhibit a low specific surface area and total pore volume but have abundant surface functional groups, high concentrations of light metals, and a high net surface charge density. The maximum adsorption capacity of biosorbents strongly depends on the operation conditions, experiment types, and adsorbate nature. The absorption mechanism of contaminants onto biosorbents is complex; therefore, typical experiments used to identify the primary mechanism of the adsorption of contaminants onto biosorbents were thoroughly discussed. It was concluded that byproduct leaves are renewable, biodegradable, and promising biosorbents which have the potential to be used as a low-cost green alternative to commercial activated carbon for effective removal of various contaminants from the water environment in the real-scale plants.

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Section: Preparation Of Leaf-derived Biosorbentsmentioning

confidence: 99%

Removal of various contaminants from water by renewable lignocellulose-derived biosorbents: a comprehensive and critical review

Tran

Nguyen

Woo

et al. 2019

Critical Reviews in Environmental Science and Technology

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“…Despite the toxicity of associated elements, many indigenous microorganisms can survive and thrive in soils and contaminated waters. Microbial enhanced migration as well as geochemical transformation of elements can encourage the precipitation and immobilization, contributing to the remediation strategy to deal with contaminated soils and waters (Ungureanu et al 2015;Escudero et al 2019). Microbial cycling is primarily achieved by reduction, oxidation and methylation among other processes (Magalhaes et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Microbial diversity in soils from antimony mining sites: geochemical control promotes species enrichment

et al. 2020

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Elevated soil concentrations of antimony (Sb) and co-contaminants are frequently encountered where antimony has been mined on a large scale. For instance, the Xikuangshan antimony mine in central South China has sustained, over many centuries, dispersed and spatially variable input of toxic elements into the soil ecosystem. We utilized this unique environment to assess the impact of geochemical conditions on soil microbiology. Geochemical conditions were assessed by monitoring absolute and available fractions of toxic elements and disrupted soil properties. Soil microbiology was studied by high-throughput sequencing and statistical analysis, including principle component analysis and canonical correspondence analysis. Results show that Sb concentrations were ranged from 970 to more than 24,000 mg/kg. As concentrations were three times higher than the regional background values and ten times higher for Pb, 590 times higher for Cd and 30 times higher for Hg. About 5-10% of the total soil Sb was environmentally mobile. Microbial diversity was high, and soil properties such as pH, organic matter, iron and sulfate controlled the absolute microbial activity. We identified strong positive and negative correlations with specific bacterial taxonomic groups which show: (1) an intolerance of available fractions for all elements, e.g., Gemmatimonas, Pirellula, Spartobacteria; (2) a good tolerance of available fractions for all elements, e.g., Povalibacter, Spartobacteria; and (3) a mixed response, tolerating available Sb, Hg and Cd and inhibition by As, Pb, e.g., Escherichia/Shigella and Arthrobacter, and in reverse, e.g., Gemmatimonas and Sphingomonas. The site hosts great diversity dominated by Gram-negative organisms, many with rod (bacillus) morphologies but also some filamentous forms, and a wide range of metabolic capabilities: anaerobes, e.g., Saccharibacteria, metal oxidizing, e.g., Geobacter, chemoautotrophs, e.g., Gemmata, and sulfur reducing, e.g., Desulfuromonas. The bioremediation potential of Arthrobacter and Escherichia/ Shigella for Sb control is highlighted.

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“…Many parameters affect the biosorption process efficiency such as biosorbent characteristics (i.e., permeability, surface territory), metal ion features (i.e., molecular weight, oxidation state, ionic radius), in addition to other parameters such as pH, temperature, contact time, biosorbent and sorbate concentration etc. (Escudero et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Biosorption of Cu and Zn in a Batch System via Dried Macroalgae Halimeda opuntia and Turbinaria turbinata

Madkour

Dar

2021

EREM

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Biosorption is the most favourable technique for the treatment of heavy metals as it is fast, powerful, and low cost, it takes place in a wide range of temperatures as well as it can be used for almost all types of heavy metals. In this study, the biosorption technique adsorbs Cu2+ and Zn2+ on the dried macroalgae (Halimeda opuntia and Turbinaria turbinata) in a batch system. Experimental parameters affecting the biosorption process are initial metal ion concentrations (5, 10, 15 and 25 mg/L), pH between (4.5 and 5.2), biomass dosage (1 gm) and agitation speed 150 rpm applied at contact time (30, 60 and 120 min). The significant-high average removals of Cu2+ by H.opuntia (> 96%) were recorded in concentrations of 10, 15 and 25 ppm at 120 min and the highest average removals by T.turbinata (81.07%, 78.32% and 74.7%) were recorded in concentrations of 5, 10 and 15 ppm at 120 min. The lowest average removal of Cu2+ 89.22% was recorded by H.opuntia and 49.9% was recorded by T.turbinata in a concentration of 25 ppm at 30 min. In the same way, significant-high average removals (>94%) were recorded in a concentration of 10 ppm at 120 min for H.opuntia and in a concentration of 5 ppm by at 60 min for T.turbinata. In conclusion, the dead biomass of marine algae can provide a promising and low-cost technique for removing heavy metal pollutants in medical industries.

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Recent advances on elemental biosorption

Cited by 87 publications

References 137 publications

Removal of various contaminants from water by renewable lignocellulose-derived biosorbents: a comprehensive and critical review

Removal of various contaminants from water by renewable lignocellulose-derived biosorbents: a comprehensive and critical review

Microbial diversity in soils from antimony mining sites: geochemical control promotes species enrichment

Biosorption of Cu and Zn in a Batch System via Dried Macroalgae Halimeda opuntia and Turbinaria turbinata

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