Nickel complexation as an innovative approach for nickel-cobalt selective recovery using sulfate-reducing bacteria

Liu, Yun; Serrano, Antonio; Wyman, Valentina; Marcellin, Esteban; Southam, Gordon; Vaughan, James; Gómez, Denys Kristalia Villa

doi:10.1016/j.jhazmat.2020.123506

Cited by 21 publications

(11 citation statements)

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“…Results showed that the diversity and quantity of extracellular proteins markedly varied depending on the type and concentration of metals in each bioreactor period (Figure 4-3), which is in agreement with previous research showing that microbial responses generating extracellular proteins is dependent to these (Liu et al, 2021;More et al, 2014;.…”

Section: Effect Of Metal Addition On Proteins Productionsupporting

confidence: 91%

“…Then the sulfide produced by the SRB would precipitate the metals, resulting in the reduced toxicity of free Ni as well as removing the inhibitory effect of sulfide ions to SRB (González et al, 2019). In agreement with our previous study (Liu et al, 2021), Co addition in period V, as well as the addition of other metals when mine-impacted water was fed, enhanced the biological sulfate reduction (Table 4-2). This is explained by the role of Co and other metals as essential nutrient enhancing the microbial activity (Glass et al, 2018).…”

Section: Effect Of Metal Addition On Srb Activitysupporting

confidence: 89%

“…Ecogenomics (Hölzer & Marz, 2019), which was then used as a data library for the proteomic analysis (Liu et al, 2021). The Illumina reads were trimmed to 150 bases using TrimGalore (version 0.6.1;…”

Section: Metagenomic and Proteomic Analysismentioning

confidence: 99%

“…The trimmed reads were processed with Kraken2 (version 2.0.8beta; https://doi.org/10.1186/s13059-019-1891-0) and Bracken 2.0.0 (Lu et al, 2017) to taxonomically classify the reads and determine the relative abundances of the RNA sequences as described in our previous research (Liu et al, 2021).…”

Section: Metagenomic and Proteomic Analysismentioning

confidence: 99%

“…Liu, Y., Serrano, A., Wyman, V., Marcellin, E., Southam, G., Vaughan, J., Villa-Gomez, D. (2021). Nickel-protein complexation as an innovative approach for nickel-cobalt selective recovery using sulfate-reducing bacteria.…”

Section: Appendixmentioning

confidence: 99%

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Strategies for nickel and cobalt recovery from mine-impacted water using sulfate-reducing bacteria

Liu¹

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With the increasing world demand and price of valuable metals such as nickel (Ni) and cobalt (Co), it has become more attractive to recover these metals from secondary streams such as mine-impacted water. Biogenic sulfide produced through a biological sulfate reduction process is a promising approach compared with the traditional hydroxide or chemical sulfide precipitation for metal recovery, as it can be produced on site and utilize the substances that already exist in the waste streams. Moreover, it is effective even with low metal concentrations and low pH solutions due to the low solubility products of the metal sulfides. However, the generation of fine particles in the sulfide precipitation process is a challenge and usually results in poor settling, which deteriorates the metal recovery efficiency. Despite this, the compositions of biogenic sulfide solutions from different sources are various depending on the electron donors and the influent characteristics, which may affect the metal precipitation reactions and particle settling properties. Therefore, the effect of using chemical sulfide and four biogenic sulfide-containing solutions for Ni and Co precipitation and settling was evaluated in this thesis. Results showed that phosphate was the main component enhancing particle settling whereas acetate and sulfate exhibited a smaller influence. The Ni and Co recovery were also assessed in a novel single-stage upflow fixed-bed sulfidogenic bioreactor treating metal and sulfate-containing wastewater (0-200 mg/L Ni and 0-10 mg/L Co). Over 99% of Ni and Co precipitated and settled in the bioreactor regardless of the initial metal concentration. Bacterial communities attached on the carrier materials and metal precipitates collected from the bioreactor bottom were also characterized. These findings helped describe the simultaneous treatment of sulfate-and metal-containing wastewater in a sulfidogenic bioreactor and provided information on how to scale up the reactor and to optimize the metal recovery efficiency. Ni and Co often co-exist in ores and the associated mine waste; however, their similar chemical behaviors have made the selective recovery of both metals a challenge. The addition of chemicals and energy in hydrometallurgy are common practices for Ni-Co concentrates that allows selective separation through precipitation, ion exchange and solvent extraction. Although these options are economically feasible for concentrates, the same technologies may not necessarily be attractive for secondary sources with lower, but still significant metal concentrations. Therefore, a new approach to separate Ni and Co using sulfate-reducing bacteria (SRB) based on the different microbial responses to metal stress was proposed in this thesis. Results show that Ni displayed higher solubility (52-99%) than Co (0.6-15.5%) in the presence of SRB and sulfide. This could be partially explained by the higher Ni stress to SRB that induced the production of extracellular proteins that can selectively complex Ni and stabilize it in th...

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Section: Effect Of Metal Addition On Proteins Productionsupporting

confidence: 91%

Section: Effect Of Metal Addition On Srb Activitysupporting

confidence: 89%

Section: Metagenomic and Proteomic Analysismentioning

confidence: 99%

Section: Metagenomic and Proteomic Analysismentioning

confidence: 99%

Section: Appendixmentioning

confidence: 99%

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Strategies for nickel and cobalt recovery from mine-impacted water using sulfate-reducing bacteria

Liu¹

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Diversity of Microbial Metal Sulfide Biomineralization

Park

Faivre

2021

ChemPlusChem

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Since the emergence of life on Earth, microorganisms have contributed to biogeochemical cycles. Sulfate‐reducing bacteria are an example of widespread microorganisms that participate in the metal and sulfur cycles by biomineralization of biogenic metal sulfides. In this work, we review the microbial biomineralization of metal sulfide particles and summarize distinctive features from exemplary cases. We highlight that metal sulfide biomineralization is highly metal‐ and organism‐specific. The properties of metal sulfide biominerals depend on the degree of cellular control and on environmental factors, such as pH, temperature, and concentration of metals. Moreover, biogenic macromolecules, including peptides and proteins, help cells control their extracellular and intracellular environments that regulate biomineralization. Accordingly, metal sulfide biominerals exhibit unique features when compared to abiotic minerals or biominerals produced by dead cell debris.

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Microwave‐Assisted Synthesis of Aromatic Thiadiazol Crown Ethers and Determination of Complexation Properties with Metal Ions by Application of Job′s Plot Method to Conductometry

2022

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The microwave-assisted synthesis technique, one of the pioneers of green chemistry, was used to synthesize aromatic thiadiazole crown ethers in this study. Thiadiazole crown ethers were synthesized by the cyclization reaction of 2-amino-5mercapto-1,3,4-thiadiazole and mono-di-tri-tetra ethylene glycol dichloride compounds using the S N 2 reaction mechanism in acetonitrile solvent and the presence of cesium carbonate base. FT-IR, 1 H-NMR, 13 C-NMR, LC-MS/MS spectroscopic techniques, and elemental analysis were used to characterize the synthesized compounds after purification. Furthermore, the conductivity behaviour of the synthesized compounds against metal salts (NaCl, KCl, MgCl 2 , CaCl 2 , ZnCl 2 , FeSO 4 , AgNO 3 , CoCl 2 ) was determined using Job's Plot technique, which was adapted to conductometry. Interactions between ligands and ions were investigated. According to conductometric data, thiadiazole crown ethers showed significant complexations; M1 and M4 with Ca 2 + , M2 with Fe 2 + , and M3 with Co 2 + ions.

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Nickel complexation as an innovative approach for nickel-cobalt selective recovery using sulfate-reducing bacteria

Cited by 21 publications

References 50 publications

Strategies for nickel and cobalt recovery from mine-impacted water using sulfate-reducing bacteria

Strategies for nickel and cobalt recovery from mine-impacted water using sulfate-reducing bacteria

Diversity of Microbial Metal Sulfide Biomineralization

Microwave‐Assisted Synthesis of Aromatic Thiadiazol Crown Ethers and Determination of Complexation Properties with Metal Ions by Application of Job′s Plot Method to Conductometry

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