Changes of the reactor performance and the properties of granular sludge under tetracycline (TC) stress

Shi, Yuejun; Xing, Su-Fang; Wang, Xinhua; Wang, Shuguang

doi:10.1016/j.biortech.2013.03.037

Cited by 107 publications

(24 citation statements)

References 34 publications

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“…The results showed that the aerobic granule size decreased with addition of CLX to the synthetic wastewater. The same phenomenon was observed in aerobic granular sludge under tetracycline stress (Amin et al, 2006;Shi et al, 2013). It implies that the presence of CLX potentially decreased granular stabilities, resulting in a less diameter of granules, by influencing the EPS and community of the microbes in R1 and R2.…”

Section: Resultssupporting

confidence: 68%

Characterization of the extracellular polymeric substances and microbial community of aerobic granulation sludge exposed to cefalexin

Kong

Wang

Shu

et al. 2015

International Biodeterioration & Biodegradation

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Section: Resultssupporting

confidence: 68%

Characterization of the extracellular polymeric substances and microbial community of aerobic granulation sludge exposed to cefalexin

Kong

Wang

Shu

et al. 2015

International Biodeterioration & Biodegradation

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“…It was often accepted that extracellular polymeric substances (EPS) were the important components to evaluate when examining the physicochemical and biological properties of biomass [39]. In this study, EPS content was calculated by the sum of PN and PS [25].…”

Section: Resultsmentioning

confidence: 99%

Impact of selected non-steroidal anti-inflammatory pharmaceuticals on microbial community assembly and activity in sequencing batch reactors

Jiang

Geng

et al. 2017

PLoS ONE

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This study covers three widely detected non-steroidal anti-inflammatory pharmaceuticals (NSAIDs), diclofenac (DCF), ibuprofen (IBP) and naproxen (NPX), as NSAIDs pollutants. The objective is to evaluate the impact of NSAIDs at their environmental concentrations on microbial community assembly and activity. The exposure experiments were conducted under three conditions (5 μg L-1 DCF, 5 μg L-1 DCF+5 μg L-1 IBP and 5 μg L-1 DCF+5 μg L-1 IBP+ 5 μg L-1 NPX) in sequencing batch reactors (SBRs) for 130 days. Removals of COD and NH4+-N were not affected but total nitrogen (TN) removal decreased. IBP and NPX had the high removal efficiencies (79.96% to 85.64%), whereas DCF was more persistent (57.24% to 64.12%). In addition, the decreased removals of TN remained the same under the three conditions (p > 0.05). The results of oxidizing enzyme activities, live cell percentages and extracellular polymeric substances (EPS) indicated that NSAIDs damaged the cell walls or microorganisms and the mixtures of the three NSAIDs increased the toxicity. The increased Shannon-Wiener diversity index suggested that bacterial diversity was increased with the addition of selected NSAIDs. Bacterial ribosomal RNA small subunit (16S) gene sequencing results indicated that Actinobacteria and Bacteroidetes were enriched, while Micropruina and Nakamurella decreased with the addition of NSAIDs. The enrichment of Actinobacteria and Bacteroidetes indicated that both of them might have the ability to degrade NSAIDs and thereby could adapt well with the presence of NSAIDs.

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“…is another identified bacterium in anode biofilm, which has the ability to degrade various complex organic compounds. 35 Valle et al 36 reported that Comamonas genus is responsible for the acyl-homoserine lactone (AHL) production. As known, AHLs have an important role in mediating bacterial community and increase biofilm formation.…”

Section: Microbial Communitymentioning

confidence: 99%

Electricity generation potential of sewage sludge in sediment microbial fuel cell using Ti–TiO₂ electrode

Taşkan

Hasar

2020

Env Prog and Sustain Energy

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The aim of this study is to increase the electricity generation capacity of sediment microbial fuel cell (SMFC) using sewage sludge as a substrate source in anode media via an attractive electrode material. For this purpose, several electrochemical and molecular techniques have been employed to evaluate the performance of SMFC. The max power density and charge transfer resistance of SMFC running on sewage sludge were 187 mW/m2 and 84.7 Ω, respectively. The polymerase chain reaction‐denaturing gradient gel electrophoresis (PCR‐DGGE) analysis indicated that bacteria in anode biofilm belonged to the Clostridia, d‐proteobacteria, g‐proteobacteria, and b‐proteobacteria. Scanning electron microscopy and fluorescence in situ hybridization observations demonstrated that a viable biofilm was formed on the anode surface and the abundance of bacteria was significantly higher than archaea. Consequently, this study showed that sewage sludge could be used as a substrate in the anode media of SMFC for producing high power density.

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Changes of the reactor performance and the properties of granular sludge under tetracycline (TC) stress

Cited by 107 publications

References 34 publications

Characterization of the extracellular polymeric substances and microbial community of aerobic granulation sludge exposed to cefalexin

Characterization of the extracellular polymeric substances and microbial community of aerobic granulation sludge exposed to cefalexin

Impact of selected non-steroidal anti-inflammatory pharmaceuticals on microbial community assembly and activity in sequencing batch reactors

Electricity generation potential of sewage sludge in sediment microbial fuel cell using Ti–TiO₂ electrode

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Changes of the reactor performance and the properties of granular sludge under tetracycline (TC) stress

Cited by 107 publications

References 34 publications

Characterization of the extracellular polymeric substances and microbial community of aerobic granulation sludge exposed to cefalexin

Characterization of the extracellular polymeric substances and microbial community of aerobic granulation sludge exposed to cefalexin

Impact of selected non-steroidal anti-inflammatory pharmaceuticals on microbial community assembly and activity in sequencing batch reactors

Electricity generation potential of sewage sludge in sediment microbial fuel cell using Ti–TiO2 electrode

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Electricity generation potential of sewage sludge in sediment microbial fuel cell using Ti–TiO₂ electrode