Metal inhibition on the reactivity of manganese dioxide toward organic contaminant oxidation in relation to metal adsorption and ionic potential

Jiang, Jing; Wang, Zhuopu; Yang, Chen; He, Anfei; Li, Jianliang; Sheng, Guangyao

doi:10.1016/j.chemosphere.2016.12.015

Cited by 14 publications

(5 citation statements)

References 44 publications

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“…The PAH micro-biological degradation was enhanced under better reaction conditions improved by the favourable adsorption ability of birnessite. 7 …”

Section: Resultsmentioning

confidence: 99%

“…The PAH micro-biological degradation was enhanced under better reaction conditions improved by the favourable adsorption ability of birnessite. 7 The total relative proportions of Mn-oxidizing bacteria and iron-oxidizing bacteria were both highest in VFBCW-HA/BA. VFBCW-HA/BA and VFBCW-BA have 4.79% and 2.18% relative abundances rates of Mn-oxidizing bacteria, respectively, compared to 1.55% for VFCW-HA/BA.…”

Section: Microbial Performance In Cwsmentioning

confidence: 92%

“…5,6 Manganese (Mn) oxides have been reported to be an effective kind of wetland substrate for pollutant removal, such as clarithromycin, chlorophene, diclofenac, and triclosan. 7,8 Distributed widely and in high amounts in the environment, Mn oxides performed with good adsorptive capability and xed pollutants could be removed by the following Mn cycle. Accompanying the process of electron transformation from pollutants to Mn oxides, Mn oxides are reduced.…”

Section: Introductionmentioning

confidence: 99%

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Effect of humic acid on phenanthrene removal by constructed wetlands using birnessite as a substrate

et al. 2022

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“…The PAH micro-biological degradation was enhanced under better reaction conditions improved by the favourable adsorption ability of birnessite. 7 …”

Section: Resultsmentioning

confidence: 99%

Section: Microbial Performance In Cwsmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of humic acid on phenanthrene removal by constructed wetlands using birnessite as a substrate

et al. 2022

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“…In addition to the solubility product principle, inherent characteristics such as metal ion radius and ion charge also have important implications for Cu(II) removal using FeS in highconcentration zinc sulfate solutions. Studies have shown that metal ions with smaller ionic radii are more likely to form strong coordination bonds with sulfur-containing groups [21,22]. Copper, having an ionic radius of 0.72 Å, exhibits a smaller size compared to zinc (0.74 Å), cadmium (0.97 Å), and ferrous iron (0.78 Å).…”

Section: Proposed Removal Mechanismmentioning

confidence: 99%

Deep purification of copper from zinc sulfate solution using controllable aging FeS nanoparticles through slow-release sulfide precipitation

Zhang,

Tian,

Zeng

et al. 2024

J. Phys.: Conf. Ser.

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The purification of impurity ions within zinc hydrometallurgical solutions significantly impacts the subsequent quality of zinc electrodeposition. Traditional methods for copper removal from zinc solutions suffer from issues like limited reactivity, high consumption, and elevated costs. To address these challenges, controllable aging of FeS nanoparticles was designed, employing temperature variations to facilitate comprehensive copper removal from neutral zinc leachates. The aging process imparts a crystalline structure to the FeS nanoparticles, enabling the slow release of sulfide ions. A temperature of 60°C is regarded as the optimal aging temperature, at which the resultant FeS nanoparticles exhibit an optimal sustained-release performance during the aging process. Temperature has been found to be a crucial factor influencing the sustained-release performance of FeS. Once the reaction temperature surpasses 60°C, the utilization efficiency of S ions in the sustained-release agent can reach over 95%, with a maximum of 98.5%. Under optimal conditions featuring a reaction temperature of 60°C, a reaction duration of 30 minutes, and a solution pH maintained at 1, the dosage aged FeS at the S/Cu (II) ratio of 1.2 times, nearly 100% copper removal rate can be achieved. The maximum removal rate for cadmium does not exceed 2.5%, and the residual copper concentration in the zinc leachate is below 0.2 mg/L. The precipitate obtained is high-purity copper sulfide residue, which contains virtually no zinc. Slow-release sulfidation can maximize the utilization efficiency of sulfide ions in the solution, reduce the occurrence of competing reactions, and minimize the intermixing of products. It offers advantages such as high selectivity and deep purification.

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“…There are diverse Mn-oxidizing microorganisms with various metabolism and complicated regulation in soil eco-system (Zhou and Fu 2020). In addition, there are also differences in the adsorption capacity of Mn oxides to heavy metal ions (Jiang et al 2017). With the increase of available fraction of Mn, Co, Cu, Zn and Ni in soil, soil fumigation exhibited a fertilizer effect in soil elements for plant uptake.…”

Section: Effect Of Soil Fumigation On Available Trace Elementsmentioning

confidence: 99%

Activation effect of soil available nitrogen, manganese and cobalt after addition of different fumigants

Yan

Wang

Song

et al. 2022

Environ. Res. Commun.

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Soil fumigation is a well-established method for controlling soil-borne diseases. Better quantification of soil available nitrogen and trace elements may provide recommendations on the safe and effective application of soil fumigants. The effects of four fumigants on the available soil nitrogen and trace elements (including Mn, Co, Ni, Cu, Zn and Cd) were investigated in the laboratory incubation with agricultural soil. The results showed that soil fumigation increased soil mineral nitrogen and available Mn, Co, Ni. A significant increase of soil NH4+-N and available Mn was observed in all fumigation treatments. Chloropicrin treatments showed the largest increase of soil NH4+-N. In addition, chloropicrin and dazomet increased Mn and Co to a greater extent than dimethyl disulfide and 1,3-dichloropropene in soil. Available Mn content after chloropicrin fumigation has increased by 2.2 times compared with control treatments, and available Co content in dazomet treatments is also 2.8 times more than untreated control. In fumigated soil, the steady increase of soil available elements is beneficial to nutrient uptake by plants. Soil fumigation created an activation effect on soil mineral nitrogen and available trace elements, which may increase their bioavailability to plants and promote plant growth.

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Metal inhibition on the reactivity of manganese dioxide toward organic contaminant oxidation in relation to metal adsorption and ionic potential

Cited by 14 publications

References 44 publications

Effect of humic acid on phenanthrene removal by constructed wetlands using birnessite as a substrate

Effect of humic acid on phenanthrene removal by constructed wetlands using birnessite as a substrate

Deep purification of copper from zinc sulfate solution using controllable aging FeS nanoparticles through slow-release sulfide precipitation

Activation effect of soil available nitrogen, manganese and cobalt after addition of different fumigants

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