Phenol and 17β-estradiol removal by Zoogloea sp. MFQ7 and in-situ generated biogenic manganese oxides: Performance, kinetics and mechanism

Yang, Yuzhu; Ali, Amjad; Su, Junfeng; Chang, Qiao; Xu, Liang; Su, Lindong; Qi, Zening

doi:10.1016/j.jhazmat.2022.128281

Cited by 31 publications

(5 citation statements)

References 71 publications

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“…Thauera [25], Dechloromonas, Comamonas, Zoogloea [26], and Denitratisoma were identified as the main denitrifiers in the system, accounting for a combined relative abundance of 29.11%. This composition ensured the removal of the shortcut nitrification product, NO 2 --N, in the biofilm, thus improving the SND efficiency of the system.…”

Section: Study On Microbial Population Structurementioning

confidence: 99%

Mechanism of Nitrogen Removal Enhancement in Low Carbon/Nitrogen Municipal Sewage by AAO Process with Activated Sludge-Biofilm Composite System

Rong,

Zhang,

Sun

et al. 2024

Pol. J. Environ. Stud.

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To address the issue of insufficient carbon sources in urban sewage, which leads to poor nitrogen removal performance in sewage treatment systems, an anaerobic/anoxic/aerobic (AAO) pilotscale reactor was established. The reactor aimed to treat low C/N (chemical oxygen demand; COD/ total nitrogen; TN) municipal wastewater (C/N<5). To enhance nitrogen removal and investigate the mechanism in the AAO process, a Pall ring modified biological suspended filler was introduced to the aerobic zone after achieving partial nitrification and denitrification (PND). The results revealed that the activated sludge-biofilm composite system can be successfully formed within 40 days, with a stable loaded biomass on the membrane at 40.06 mg/g (measured by volatile suspended solids (VSS)/filler). The aerobic zone of the activated sludge-biofilm composite system demonstrated an increase in nitrite accumulation rate (NAR) and simultaneous nitrification and denitrification efficiency (SND), from 60.46% and 19.42% in the initial stage (stage 1) to 69.62% and 46.47% in the stable forming stage (stage 3), respectively. By promoting both PND and SND pathways for nitrogen removal, the effluent from the system exhibited decreased concentrations of ammonia nitrogen (NH 4 + -N) at 0.11 mg/L and total nitrogen (TN) at 4.55 mg/L, indicating the significant synergistic effect of the biofilm on nitrogen removal. 16S rRNA amplification and sequencing analysis revealed that Proteobacteria was the dominant microorganism in the 60-day biofilm, accounting for 76.12% of the relative abundance. The main ammonia oxidizing bacteria (AOB) were Nitrosomanas (1.77%) and Nitrosococcus (1.69%). Meanwhile, denitrification microbial species were found to have a substantial proportion (29.11%), along with a small amount of Anammox bacteria (Anammoxoglobus,

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Section: Study On Microbial Population Structurementioning

confidence: 99%

Mechanism of Nitrogen Removal Enhancement in Low Carbon/Nitrogen Municipal Sewage by AAO Process with Activated Sludge-Biofilm Composite System

Rong,

Zhang,

Sun

et al. 2024

Pol. J. Environ. Stud.

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“…3,4 Furthermore, the International Agency for Research on Cancer (IARC) has categorized aniline as a group 2B carcinogen, underscoring its potential harm to humans health. 5,6 Therefore, the rapid and efficient elimination of aniline in water holds immense significance and has attracted more and more attention in recent years. 7,8 Hyper-crosslinked polymers (HCPs) 9,10 are extensively applied in various fields of organic pollutant removal, energy storage, heterogeneous catalysis, and gas adsorption and separation due to their high Brunauer−Emmett−Teller (BET) surface area (S BET ), pore volume (V total ), and unique hierarchical pore structure.…”

Section: Introductionmentioning

confidence: 99%

“…The utilization of aniline, a basic aromatic amine, has been extensively employed across various industrial sectors including the manufacture of dyes, pharmaceuticals, and polymers. , Nevertheless, its widespread application has raised significant concerns regarding occupational exposure and environmental contamination. , Furthermore, the International Agency for Research on Cancer (IARC) has categorized aniline as a group 2B carcinogen, underscoring its potential harm to humans health. , Therefore, the rapid and efficient elimination of aniline in water holds immense significance and has attracted more and more attention in recent years. , …”

Section: Introductionmentioning

confidence: 99%

Pore Regulation of Carboxyl-Functionalized Hyper-Crosslinked Polymers and Their Efficient Aniline Adsorption

Wang,

Liang,

Cao

et al. 2024

Ind. Eng. Chem. Res.

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Herein, both surface chemistry engineering and pore partition strategies were adopted to regulate the pore environments of the hyper-crosslinked polymers (HCPs) to strengthen their aniline adsorption from water. Specifically, plentiful carboxyl groups were first anchored on the macropores of polystyrene through the nucleophilic substitution, and then abundant rigid methylene partitioned the macropores of polystyrene into abundant micropores/mesopores through the Friedel−Crafts alkylation. As a result, carboxyl-functionalized HCPs were accurately prepared as planned. PS-BTCA-HCP-4 exhibited the highest adsorption to aniline, boasting the q max of 396 mg/g, which can be largely attributed to its highest S BET of 478.0 m 2 /g and the rich carboxyl groups with the oxygen content of 11.31%. Furthermore, it achieved adsorption equilibrium within 70 min, and its deliberately hierarchical porosity consisting of plentiful micropores/mesopores made a positive contribution.

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“…14 The biogenic manganese oxides (BioMnOx) are high reactive to reduced species, such as Cr(III), Co(II), Ce(III), and organic compounds due to the strong oxidation power of Mn(III)/Mn(IV). [15][16][17][18] In addition, the lattice defect and large surface area also made the outstanding absorption capacity of BioMnOx to various metal ions. 14 Nowadays, the synergy of MnOB and in-situ produced BioMnOx on organic pollutants and metal(loid)s oxidation were found.…”

Section: Introductionmentioning

confidence: 99%

The cryptic step in biogeochemical Tellurium (Te) cycle: Indirect elementary Te oxidation mediated by manganese-oxidizing bacterium (MnOB)

Liu

et al. 2023

Preprint

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Tellurium (Te) is a rare element in the chalcogen group, and its biogeochemical cycle has been investigated for decades. As the most soluble Te species, tellurite (Te(IV)) possess the highest toxicity to the organisms. Chemical or biological Te(IV) reduction to elemental tellurium (Te0) is generally considered as an effective detoxification route for Te(IV)-containing wastewater. Here, we reported a previously overlooked Te0oxidation process mediated by manganese-oxidizing bacterium Bacillus sp. FF-1. This strain has both Mn(II)-oxidizing and Te(IV)-reducing activities, which could produce manganese oxides (BioMnOx) and Te0(BioTe0) when incubating with Mn(II) and Te(IV), respectively. Te(IV) can co-precipitated with Mn(II) to form highly stable Te(IV)-Mn(II) compounds with low bioavailability. While when 5 mM Mn(II) was added after incubating 0.1 mM or 1 mM Te(IV) with strain FF-1 for 16 hours, the BioTe0were certainly re-oxidized to Te(IV) by BioMnOx according to the results of X-ray photoelectron spectra (XPS) and Transmission electron microscope (TEM). The chemogenic and exogenous biogenic Te0can also be oxidized by the BioMnOx, although with different rates. This study highlights a new transformation process of tellurium species mediated by manganese-oxidizing bacteria, revealing that the environmental fate and ecological risks of Te0needed to be re-evaluated.

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Phenol and 17β-estradiol removal by Zoogloea sp. MFQ7 and in-situ generated biogenic manganese oxides: Performance, kinetics and mechanism

Cited by 31 publications

References 71 publications

Mechanism of Nitrogen Removal Enhancement in Low Carbon/Nitrogen Municipal Sewage by AAO Process with Activated Sludge-Biofilm Composite System

Mechanism of Nitrogen Removal Enhancement in Low Carbon/Nitrogen Municipal Sewage by AAO Process with Activated Sludge-Biofilm Composite System

Pore Regulation of Carboxyl-Functionalized Hyper-Crosslinked Polymers and Their Efficient Aniline Adsorption

The cryptic step in biogeochemical Tellurium (Te) cycle: Indirect elementary Te oxidation mediated by manganese-oxidizing bacterium (MnOB)

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