ArticleScientific reports2022
Removal of yttrium from rare-earth wastewater by Serratia marcescens: biosorption optimization and mechanisms studies.
Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed.
- Integrated transcriptomic and DNA methylomic analysis of Yarrowia lipolytica in response to La(III)/Ce(III) stress.Microbial cell factories · 2026Article
- A review on bioprocesses for the recovery of rare earth elements and its challenges.World journal of microbiology & biotechnology · 2026Review
- Determination of the Mechanisms of Terbium(III) Biosorption byMicroorganisms · 2025Article
- Rare Earth Element Extraction from Ionic Rare Earth Ores by Two Typical Acidogenic Microorganisms,International journal of molecular sciences · 2025Article
- Utilisation of acid-tolerant bacteria for base metal recovery under strongly acidic conditions.Extremophiles : life under extreme conditions · 2024Article
- Rare earths stick to rare cyanobacteria: Future potential for bioremediation and recovery of rare earth elements.Frontiers in bioengineering and biotechnology · 2023Article
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Authors and funding
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Abstract
The discharge of yttrium containing wastewater is a potential risk to human health. Although biosorption is a promising method to remove yttrium from wastewater, whereas the application of it is limited due to the lack of efficient biosorbents. In this study, the removal of yttrium from wastewater using Serratia marcescens as a biosorbent was conducted. The effects of six parameters including pH (2-5.5), initial yttrium concentration (10-110 mg/L), biosorbent dosage (0.1-0.5 g/L), biosorption time (10-700 min), stirring speed (50-300 rpm) and temperature (20-60 °C) were evaluated. The main parameters were optimized using response surface methodology. The results showed that the adsorption capacity reached 123.65 mg/g at the optimized conditions. The biosorption mechanism was revealed based on a combined analysis using field emission transmission electron microscope-energy dispersion spectrum, Fourier transform infrared spectrophotometer, and X-ray photoelectron spectroscopy. These results revealed that the hydroxyl, carboxyl, and amino groups were the adsorption functional groups for yttrium ions. Biosorption of yttrium by S. marcescens is under the combination of ion exchange, electrostatic attraction and complexation. These findings indicated that S. marcescens can be used as an efficient biosorbent to remove yttrium from wastewater. In addition, its adsorption capacity can be further improved by the enhancement of adsorption functional groups on the surface through chemical modification.
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