Heavy metal adsorption with biogenic manganese oxides generated by Pseudomonas putida strain MnB1

Zhou, Danhua; Kim, Do-Gun; Ko, Seok‐Oh

doi:10.1016/j.jiec.2014.09.020

Cited by 96 publications

(38 citation statements)

References 45 publications

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“…Previous studies found that BMOs can efficiently adsorb various metal cations (e.g., Pb, Cd, Zn, and Ni) (Nelson et al, 2002;Wang et al, 2009;Zhou et al, 2015). In our study the formed BMO did not significantly adsorb As (Fig.…”

Section: Mechanism For As(iii) Oxidation and Adsorption By Bfmo Formesupporting

confidence: 40%

The role of biogenic Fe-Mn oxides formed in situ for arsenic oxidation and adsorption in aquatic ecosystems

et al. 2016

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a b s t r a c tAs(III&V), Mn(II), and Fe(II) may occur simultaneously in some groundwater and surface water. Studying their redox reactions and interactions is essential to unravel the biogeochemical cycles of these metal ions in aquatic ecosystems and to find effective methods to remove them simultaneously in drinking water treatment. Here, the formation of biogenic Fe-Mn oxides (BFMO, defined as a mixture of biogenic Mn oxide (BMO) and Fe oxide) as well as its oxidation and adsorption of As in a Fe(II)-Mn(II)-As(III&V)-Mn-oxidizing microbe (Pseudomonas sp. QJX-1) system were investigated. Batch experiments and structure characterization revealed that the BFMO was formed via a sequential precipitation of Fe oxide and BMO. The first formed Fe oxide was identified as FeOOH (lepidocrocite) and the latter formed BMO was identified as MnO 2 (similar to hexagonal birnessite). In the BFMO mixture, the BMO part was mainly responsible for As(III) oxidation, and the Fe oxide part dominated As adsorption. Remarkably, the BMO could oxidize Fe(II) to form FeOOH, which may improve As adsorption. The optimum Mn(II)/Fe(II) ratio for As removal was approximately 1:3 (mol/mol). Taken together, in Fe(II)-Mn(II)-As(III&V)-Mn-oxidizing microbe ecosystems, the in situ formation of BFMO could eliminate or decrease Fe(II), Mn(II), and As(III&V) species simultaneously. Therefore, based on this study, new approaches may be developed for As removal from water containing high concentrations of Fe(II) and Mn(II).

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Section: Mechanism For As(iii) Oxidation and Adsorption By Bfmo Formesupporting

confidence: 40%

The role of biogenic Fe-Mn oxides formed in situ for arsenic oxidation and adsorption in aquatic ecosystems

et al. 2016

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“…In other words, natural Mn oxides formed in Reocín incorporated higher amounts of trace metals (the case of Zn is outstanding) despite being precipitated from solutions with much lower metallic content. This represents more evidence of the extraordinary capacity of natural Mn oxides (likely, bio-oxides) to scavenge trace metals in the environment, which is in accordance with previous work [3,[8][9][10]43,44]. for Ni, and around 3 mg/L vs. 231-624 mg/L for Zn; Table 1).…”

Section: Trace Metal (Co Ni Zn) Partition Between Parent Solutions supporting

confidence: 92%

“…The potential of manganese oxides to retain many different trace metals from natural and engineered environments is well known and has been recognized in very different settings [1][2][3][4]. Among over 30 different manganese oxide minerals with a MnO x -like formula, birnessite and todorokite are the most profusely studied by their high adsorbing capacity for trace metals like Ni, Co, or Zn [5][6][7][8][9][10][11][12][13][14][15][16][17][18]. the supposed absence of Mn(II)-oxidizing microbes (most of them known to be neutrophilic [28][29][30][31][32]), a priori that only allows chemical oxidation, and the sorptive capacity of the abiotic mineral products is usually much lower than the highly reactive Mn bio-oxides [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…The results of our study could provide the basis for future remediation attempts in heavily contaminated mining districts aimed at removing the most soluble metal cations such as Mn(II), Co(II), Ni(II), or Zn(II) which, at present, can only be totally removed by hydroxide formation at very high pH (>9.5-10) in chemical treatment plants. products is usually much lower than the highly reactive Mn bio-oxides [8][9][10]. Thus, the first goal of this study was to investigate which Mn oxides are formed during the oxidation of Mn(II) in very concentrated mine waters.…”

Section: Introductionmentioning

confidence: 99%

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Coprecipitation of Co2+, Ni2+ and Zn2+ with Mn(III/IV) Oxides Formed in Metal-Rich Mine Waters

España

Yusta

2019

Minerals

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Manganese oxides are widespread in soils and natural waters, and their capacity to adsorb different trace metals such as Co, Ni, or Zn is well known. In this study, we aimed to compare the extent of trace metal coprecipitation in different Mn oxides formed during Mn(II) oxidation in highly concentrated, metal-rich mine waters. For this purpose, mine water samples collected from the deepest part of several acidic pit lakes in Spain (pH 2.7–4.2), with very high concentration of manganese (358–892 mg/L Mn) and trace metals (e.g., 795–10,394 µg/L Ni, 678–11,081 µg/L Co, 259–624 mg/L Zn), were neutralized to pH 8.0 in the laboratory and later used for Mn(II) oxidation experiments. These waters were subsequently allowed to oxidize at room temperature and pH = 8.5–9.0 over several weeks until Mn(II) was totally oxidized and a dense layer of manganese precipitates had been formed. These solids were characterized by different techniques for investigating the mineral phases formed and the amount of coprecipitated trace metals. All Mn oxides were fine-grained and poorly crystalline. Evidence from X-Ray Diffraction (XRD) and Scanning Electron Microscopy coupled to Energy Dispersive X-Ray Spectroscopy (SEM–EDX) suggests the formation of different manganese oxides with varying oxidation state ranging from Mn(III) (e.g., manganite) and Mn(III/IV) (e.g., birnessite, todorokite) to Mn(IV) (e.g., asbolane). Whole-precipitate analyses by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS), Inductively Coupled Plasma-Atomic Emission Spectrometry (ICP-AES), and/or Atomic Absorption Spectrometry (AAS), provided important concentrations of trace metals in birnessite (e.g., up to 1424 ppm Co, 814 ppm Ni, and 2713 ppm Zn), while Co and Ni concentrations at weight percent units were detected in asbolane by SEM-EDX. This trace metal retention capacity is lower than that observed in natural Mn oxides (e.g., birnessite) formed in the water column in a circum-neutral pit lake (pH 7.0–8.0), or in desautelsite obtained in previous neutralization experiments (pH 9.0–10.0). However, given the very high amount of Mn sorbent material formed in the solutions (2.8–4.6 g/L Mn oxide), the formation of these Mn(III/IV) oxides invariably led to the virtually total removal of Co, Ni, and Zn from the aqueous phase. We evaluate these data in the context of mine water pollution treatment and recovery of critical metals.

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“…Heavy metal pollution in aquatic environments is one of the biggest concerns for environmentalists due to its high toxicity and persistency. In addition, these toxic heavy metals can accumulate in living tissues, causing various adverse effects and disorders in human beings [1] [2]. Copper is a widely used metal and there are many potential sources of copper pollution.…”

Section: Introductionmentioning

confidence: 99%

Activated bentonite as a low-cost adsorbent for the removal of Cu(II) and Pb(II) from aqueous solutions: Batch and column studies

Pawar

Lalhmunsiama

Bajaj

et al. 2016

Journal of Industrial and Engineering Chemistry

200

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© 2015. This manuscript version is made available under the Elsevier user license In this study, the effects of acid activation with high bentonite contents under mild synthetic conditions on textural and structural properties were explored. The alteration features after activation were fully characterized with the help of X-ray powder diffraction (XRD), X-ray fluorescence (XRF), Fourier transform infrared spectroscopy (FT-IR), Scanning electron microscopy (SEM), and Brunauer-Emmett-Teller (BET) surface area, Barrett-Joyner-Halenda (BJH) pore size and volume analyses. The active sites were examined using volumetric titration and confirmed with a pyridine adsorbed FT-IR study. The activated bentonite (ABn) was further utilized for the removal of Cu(II) and Pb(II) ions from aqueous solutions. Batch reactor studies showed that the removal of these toxic metal ions was favored by increases in the pH, initial metal concentrations, contact time, and dose of the adsorbents. The equilibrium data obtained at various initial concentrations reasonably fit well with the Langmuir and Freundlich adsorption isotherms. The adsorption process was fast and the kinetic data fit better to the pseudo-second order kinetic model. The presence of other heavy metal ions, such as Cd(II), Fe(II), and Mn(II), did not significantly suppress the removal of both the Cu(II) and Pb(II); whereas the other cations, such as Na + , K + , Ca 2+ , and Mg 2+ , caused a notable decrease in the Pb(II) removal. In addition, the breakthrough data obtained in the column studies fit well with the non-linear Thomas equation, and high loading capacities of Cu(II) and Pb(II) were obtained. Therefore, we demonstrated in this study that the low cost 'ABn' solid can be employed as a potential adsorbent for the effective treatment of aqueous waste contaminated with Cu(II) and Pb(II).

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Heavy metal adsorption with biogenic manganese oxides generated by Pseudomonas putida strain MnB1

Cited by 96 publications

References 45 publications

The role of biogenic Fe-Mn oxides formed in situ for arsenic oxidation and adsorption in aquatic ecosystems

The role of biogenic Fe-Mn oxides formed in situ for arsenic oxidation and adsorption in aquatic ecosystems

Coprecipitation of Co2+, Ni2+ and Zn2+ with Mn(III/IV) Oxides Formed in Metal-Rich Mine Waters

Activated bentonite as a low-cost adsorbent for the removal of Cu(II) and Pb(II) from aqueous solutions: Batch and column studies

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