A manganese-oxidizing bacterial consortium and its biogenic Mn oxides for dye decolorization and heavy metal adsorption

Wan, Wenjie; Xing, Yonghui; Qin, Xiuxiu; Li, Xiang; Song, Lei; Luo, Xuesong; Huang, Qiaoyun; Chen, Wenli

doi:10.1016/j.chemosphere.2020.126627

Cited by 57 publications

(28 citation statements)

References 55 publications

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“…The Mn(II) concentration in rivers with serious pollution caused by manganese ore treatment wastewater is 100−2000 mg/L, and the manganese content in manganese-polluted river sediments is 50−200 mg/g. 24 Mn(II) in the natural environment is also released by weathering and dissolution of ultramafic rock. 25 Besides, the solubility of Mn(II) is higher than that of Mn(III/IV), so Mn usually exists in the form of Mn(II) in water.…”

Section: Introductionmentioning

confidence: 99%

“…Manganese is a common metal frequently found in electroplating wastewater and mining areas and often co-exists with ferrihydrite in the natural environment. The Mn(II) concentration in rivers with serious pollution caused by manganese ore treatment wastewater is 100–2000 mg/L, and the manganese content in manganese-polluted river sediments is 50–200 mg/g . Mn(II) in the natural environment is also released by weathering and dissolution of ultramafic rock .…”

Section: Introductionmentioning

confidence: 99%

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Effect of Mn(II) and Phytic Acid on Cr(VI) in the Ferrihydrite-Cr(VI) Co-precipitates: Implication for the Migration Behavior of Cr(VI)

Sun

Chrysikopoulos

2022

ACS EST Water

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Understanding the influences of ferrihydrite conversion and co-existing substances on the migration of Cr(VI) in the co-precipitates of ferrihydrite and Cr(VI) (Fh–Cr) is helpful in predicting the migration path of Cr(VI). This work studied the influence of phytic acid on the immobilization of Cr(VI) in ferrihydrite and the migration of Cr(VI) in the presence of phytic acid and Mn(II). The results revealed that phytic acid hindered the retention of Cr(VI) in ferrihydrite and the conversion of ferrihydrite to goethite and hematite. Phytic acid inhibited the formation of hematite by inhibiting ferrihydrite particle aggregation, and the combination of phytic acid and iron ions prevented the formation of goethite. Although phytic acid significantly retarded the conversion of Fh–Cr, it did not hinder the migration of Cr(VI). Besides, the presence of Mn(II) eliminated the negative effect of phytic acid on the immobilization of Cr(VI) in ferrihydrite. The results of this study were helpful in understanding the interaction among ferrihydrite, phytic acid, Mn(II), and the migration path of Cr(VI) during the conversion.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Mn(II) and Phytic Acid on Cr(VI) in the Ferrihydrite-Cr(VI) Co-precipitates: Implication for the Migration Behavior of Cr(VI)

Sun

Chrysikopoulos

2022

ACS EST Water

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“…This explains why universal primers are commonly utilized in most investigations. The universal primers allow researchers to explore the most relevant or dominant MnOB communities in a system [19,34], but this is dependent on the sequences deposited in the database. Moreover, the process by which MnOB oxidize Mn 2+ is unclear.…”

Section: Mnob Recognitionmentioning

confidence: 99%

“…However, there are currently no specifications for the design or operation of bioprocesses that can be referenced as a guide, which could result in a number of operational issues, such as excessive energy use. Moreover, in addition to groundwater purification, because the cycle in Figure 1 is regulated by numerous environmental factors [17], organic compounds such as antibiotics [18] and dyes [19] can be absorbed and degraded by biogenic MnO x (bioMnO x ). It possesses advantages over chemical approaches for the treatment of contaminated water since it is a natural biosorbent and oxidant.…”

Section: Introductionmentioning

confidence: 99%

A Review of Manganese-Oxidizing Bacteria (MnOB): Applications, Future Concerns, and Challenges

Cai

Yang

Qiu

et al. 2023

IJERPH

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Groundwater serving as a drinking water resource usually contains manganese ions (Mn2+) that exceed drinking standards. Based on the Mn biogeochemical cycle at the hydrosphere scale, bioprocesses consisting of aeration, biofiltration, and disinfection are well known as a cost-effective and environmentally friendly ecotechnology for removing Mn2+. The design of aeration and biofiltration units, which are critical components, is significantly influenced by coexisting iron and ammonia in groundwater; however, there is no unified standard for optimizing bioprocess operation. In addition to the groundwater purification, it was also found that manganese-oxidizing bacteria (MnOB)-derived biogenic Mn oxides (bioMnOx), a by-product, have a low crystallinity and a relatively high specific surface area; the MnOB supplied with Mn2+ can be developed for contaminated water remediation. As a result, according to previous studies, this paper summarized and provided operational suggestions for the removal of Mn2+ from groundwater. This review also anticipated challenges and future concerns, as well as opportunities for bioMnOx applications. These could improve our understanding of the MnOB group and its practical applications.

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“…Among the various methods currently used to remove Pb in wastewater, adsorption is a commonly used treatment method 2 . There are various adsorption materials, including microporous materials with large specific surface areas, such as activated carbon 3 , zeolite 4 or metal–organic frameworks 5 , and biomaterials, for example bacteria 6 , fungi 7 , 8 , algae 9 , etc. Among those materials, the low-cost and non-toxicity biosorbents can be prepared with abundant raw sources, and have attracted more and more attention.…”

Section: Introductionmentioning

confidence: 99%

Distribution, characteristics of extracellular polymeric substances of Phanerochaete chrysosporium under lead ion stress and the influence on Pb removal

Liu

Yang

et al. 2020

Sci Rep

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The distribution, characteristics of extracellular polymeric substances (EPS) of Phanerochaete chrysosporium under Pb2+ stress and the influence on Pb removal were investigated. Polysaccharides was found to be the main composition in both soluble EPS (SEPS) and bounded EPS (BEPS). More polysaccharides and protein in BEPS were detected with the increased Pb2+ concentration. The ratio of Pb amount distributed in BEPS to the total Pb removed by the fungal biomass gradually decreased from 91.66 to 61.27% in group with 50 mg/L of initial Pb2+, but kept at about 35% or 25% in groups with higher Pb2+. It implies that BEPS played a certain role in the lead removal process, and the role of BEPS was relatively more important in the removal of lower concentration of Pb2+ and in the initial period of Pb removal. With FTIR analysis and Pb2+ adsorption experiment, more effective functional groups and better Pb2+ adsorption capacity was demonstrated in BEPS than in SEPS. SEM–EDS analysis demonstrated that part of Pb immobilized in BEPS was in the form of Pb precipitation. The increased molecular weight in SEPS and more polysaccharides in BEPS were probably beneficial for the adhesion of Pb precipitation.

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A manganese-oxidizing bacterial consortium and its biogenic Mn oxides for dye decolorization and heavy metal adsorption

Cited by 57 publications

References 55 publications

Effect of Mn(II) and Phytic Acid on Cr(VI) in the Ferrihydrite-Cr(VI) Co-precipitates: Implication for the Migration Behavior of Cr(VI)

Effect of Mn(II) and Phytic Acid on Cr(VI) in the Ferrihydrite-Cr(VI) Co-precipitates: Implication for the Migration Behavior of Cr(VI)

A Review of Manganese-Oxidizing Bacteria (MnOB): Applications, Future Concerns, and Challenges

Distribution, characteristics of extracellular polymeric substances of Phanerochaete chrysosporium under lead ion stress and the influence on Pb removal

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