Living biomass supported on a natural-fiber biofilter for lead removal

Gallardo, Juan José; Rios-Rivera, Ana C.; Roeckel, Marlene

doi:10.1016/j.jenvman.2018.11.004

Cited by 20 publications

(13 citation statements)

References 57 publications

(75 reference statements)

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“…In another study, the algal biofilm reactors (with EPS producing Chlorella vulgaris as the biofilter) integrated with wastewater treatment have been shown to remove more than 90% of nitrogen content and 80% of phosphorus content in the effluent from the primary treatment of municipal wastewater ( Hoh et al, 2016 ). In a recent study by Gallardo-Rodríguez et al (2019) , biofilters with natural fibers and living microbial cells were evaluated for continuous inflow of Pb 2+ (325mg/day). Interestingly, the biofilm accelerated the adsorption of Pb 2+ at 72h, and the maximum adsorption capacity was observed to be 48.75mg/g at neutral pH ( Gallardo-Rodríguez et al, 2019 ).…”

Section: Application Of Extremophilic Eps For Environment Bioremediationmentioning

confidence: 99%

“…In a recent study by Gallardo-Rodríguez et al (2019) , biofilters with natural fibers and living microbial cells were evaluated for continuous inflow of Pb 2+ (325mg/day). Interestingly, the biofilm accelerated the adsorption of Pb 2+ at 72h, and the maximum adsorption capacity was observed to be 48.75mg/g at neutral pH ( Gallardo-Rodríguez et al, 2019 ). These studies and parallel observations published in the literature claim that EPSs support the entrapping of organic materials and microorganisms, hence obliquely boosting the straining properties of the filter ( Hammes et al, 2011 ).…”

Section: Application Of Extremophilic Eps For Environment Bioremediationmentioning

confidence: 99%

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Extremophilic Exopolysaccharides: Biotechnologies and Wastewater Remediation

et al. 2021

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Various microorganisms thrive under extreme environments, like hot springs, hydrothermal vents, deep marine ecosystems, hyperacid lakes, acid mine drainage, high UV exposure, and more. To survive against the deleterious effect of these extreme circumstances, they form a network of biofilm where exopolysaccharides (EPSs) comprise a substantial part. The EPSs are often polyanionic due to different functional groups in their structural backbone, including uronic acids, sulfated units, and phosphate groups. Altogether, these chemical groups provide EPSs with a negative charge allowing them to (a) act as ligands toward dissolved cations as well as trace, and toxic metals; (b) be tolerant to the presence of salts, surfactants, and alpha-hydroxyl acids; and (c) interface the solubilization of hydrocarbons. Owing to their unique structural and functional characteristics, EPSs are anticipated to be utilized industrially to remediation of metals, crude oil, and hydrocarbons from contaminated wastewaters, mines, and oil spills. The biotechnological advantages of extremophilic EPSs are more diverse than traditional biopolymers. The present review aims at discussing the mechanisms and strategies for using EPSs from extremophiles in industries and environment bioremediation. Additionally, the potential of EPSs as fascinating biomaterials to mediate biogenic nanoparticles synthesis and treat multicomponent water contaminants is discussed.

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Section: Application Of Extremophilic Eps For Environment Bioremediationmentioning

confidence: 99%

Section: Application Of Extremophilic Eps For Environment Bioremediationmentioning

confidence: 99%

Extremophilic Exopolysaccharides: Biotechnologies and Wastewater Remediation

et al. 2021

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“…Electrostatic attraction was stated as the mechanism of adsorption between the negatively SIBS surface, and the positively charged contaminants, being optimal at pHs between 3.0 and 6.0. Gallardo-Rodríguez et al [85] studied bacterial biomass (Pseudomonas strains form aquaculture plants in the Ecuadorian Andes) inoculated on a biofilter packed with Furcraea andina fibers for removing Pb 2+ ions. Samples with the bacteria supported on Furcraea andina fibers showed the maximum adsorption capacity of 48.75 mg g -1 at pH of 7.…”

Section: Wastewater Remediationmentioning

confidence: 99%

Latest energy and value-added product synthesis

Ponce¹

2021

Av. Cienc. Ing. (Quito)

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Biomass is key towards the production of renewables, heat, biofuels, and green chemical feedstocks. Based on results reported in the literature, Ecuador, an agriculture-based economy, has the potential of meeting its energy demands while satisfying environmental regulations, by the conversion of self-generated residual biomass. Conventional biological, chemical and thermochemical methods have been modeled and widely studied at laboratory scale for the production of biogas, bioethanol, and other solid and liquid fuels, being milestones for upcoming scaled-up applications. Recently, studies have also shown the development of new processes for the conversion of Ecuadorian biomass wastes into value-added products for future applications. Providing a more complete way to manage the waste problem, aiming to create a sustainable economic growth within a bio-economy perspective.

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“…In another study, the algal biofilm reactors (with EPS producing Chlorella vulgaris as the biofilter) integrated with wastewater treatment have been shown to remove more than 90% of nitrogen content and 80% of phosphorus content in the effluent from the primary treatment of municipal wastewater (Hoh et al, 2016). In a recent study by Gallardo-Rodríguez et al (2019), biofilters with natural fibers and living microbial cells were evaluated for continuous inflow of Pb 2+ (325 mg/day). Interestingly, the biofilm accelerated the adsorption of Pb 2+ at 72 h, and the maximum adsorption capacity was observed to be 48.75 mg/g at neutral pH (Gallardo-Rodríguez et al, 2019).…”

Section: Eps As Supporting Materials For Biofiltersmentioning

confidence: 99%

“…In a recent study by Gallardo-Rodríguez et al (2019), biofilters with natural fibers and living microbial cells were evaluated for continuous inflow of Pb 2+ (325 mg/day). Interestingly, the biofilm accelerated the adsorption of Pb 2+ at 72 h, and the maximum adsorption capacity was observed to be 48.75 mg/g at neutral pH (Gallardo-Rodríguez et al, 2019). These studies and parallel observations published in the literature claim that EPSs support the entrapping of organic materials and microorganisms, hence obliquely boosting the straining properties of the filter (Hammes et al, 2011).…”

Section: Eps As Supporting Materials For Biofiltersmentioning

confidence: 99%

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Living biomass supported on a natural-fiber biofilter for lead removal

Cited by 20 publications

References 57 publications

Extremophilic Exopolysaccharides: Biotechnologies and Wastewater Remediation

Extremophilic Exopolysaccharides: Biotechnologies and Wastewater Remediation

Latest energy and value-added product synthesis

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