Addition of biochar into activated sludge improves removal of antibiotic ciprofloxacin

Kim, Do Gun; Choi, Donggeon; Cheon, Seungyong; Ko, Seok‐Oh; Kang, Seoktae; Oh, Sung-Tag

doi:10.1016/j.jwpe.2019.101019

Cited by 70 publications

(24 citation statements)

References 47 publications

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“…For any abundant genus with a relative richness of more than 2.5%, the abundance of Pseudomonas was significantly higher in the sample S4 (75.34%) when the C/N ratio was 1.5 [9]. In comparison, the relative abundance of Pseudomonas in the sample S1 was only 11.44%, while the C/N ratio was 0.5 [4,56]. In general, this result has been widely found in previous studies focusing on Pseudomonas and Aeruginosa, especially in terms of the possibility of denitrification [19,60].…”

Section: Bacterial Diversity and Community Compositionmentioning

confidence: 86%

“…Generally, the ideal pH for Autotrophic-Heterotrophic denitrification systems is chosen to be 7.5, because recent reports have shown that increasing antibiotics CIP levels can significantly reduce the performance of autotrophic denitrification systems [6,56]. For another factor that was selected as a variable, the final result under optimal conditions was pH = 7.5.…”

Section: Effect Of Ph On Biodegradation Mechanism Of the Antibiotic Cmentioning

confidence: 99%

“…However, some work on the biodegradation of CIP by biological wastewater treatment processes is significant. The effect of the degradation mechanism of ciprofloxacin antibiotics is affected by changes in the microbial community [9,46,56]. For this research work, the CIP biodegradation was investigated through a series of batch experiments using nitrified sludge anoxic sludge, and the operating system was 28 h at different C/N ratios.…”

Section: Effect Of Ph On Biodegradation Mechanism Of the Antibiotic Cmentioning

confidence: 99%

“…Thiobacillus has been identified as a widespread autotrophic bacterium in recent years, closely related to the oxidation of nitrates to nitrogen [39,51]. In recent years, several species belonging to the genera Thiobacillus, Bacillus and Thauera have been suggested to play an important role in antibiotic CIP and removal of nitrates [56]. Notably, Thiobacillus and Thauera can transfer electrons directly from the carbon electrode and promote nitrate reduction [16,49,59].…”

Section: Bacterial Diversity and Community Compositionmentioning

confidence: 99%

“…At the C/N = 1.5 and 3.5, the final effluent of CIP concentrations was 106.36 µg•L −1 and 116.99 µg•L −1 , respectively, as shown inFigure 5[50,53,54]. It was shown that denitrification inhibited CIP, and that development was more obvious during the prolonged microbial cultivation period[6,55,56].Sustainability 2020, 12, x FOR PEER REVIEW 13 of 21…”

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confidence: 96%

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Effect of the C/N Ratio on Biodegradation of Ciprofloxacin and Denitrification from Low C/N Wastewater as Assessed by a Novel 3D-BER System

et al. 2020

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Emerging pollutants in the form of pharmaceuticals have drawn international attention during the past few decades. Ciprofloxacin (CIP) is a common drug widely found in effluents from hospitals, industrial and different wastewater treatment plants, as well as rivers. In this work, the lab-scale 3D-BER system was established, and more than 90% of the antibiotic CIP was removed from Low C/N wastewater. The best results were obtained with the current intensity being taken into account, and a different C/N ratio significantly improved the removal of CIP and nitrates when the ideal conditions were C/N = 1.5–3.5, pH = 7.0–7.5 and I = 60 mA. The highest removal efficiency occurred when CIP = 94.2%, NO3−-N = 95.5% and total nitrogen (TN) = 84.3%, respectively. In this novel system, the autotrophic-heterotrophic denitrifying bacteria played a vital role in the removal of CIP and an enhanced denitrification process. Thus, autotrophic denitrifying bacteria uses CO2 and H2 as carbon sources to reduce nitrates to N2. This system has the assortment and prosperous community revealed at the current intensity of 60 mA, and the analysis of bacterial community structure in effluent samples fluctuates under different conditions of C/N ratios. Based on the results of LC-MS/MS analysis, the intermediate products were proposed after efficient biodegradation of CIP. The microbial community on biodegrading was mostly found at phylum, and the class level was dominantly responsible for the NO3−-N and biodegradation of CIP. This work can provide some new insights towards the biodegradation of CIP and the efficient removal of nitrates from low C/N wastewater treatment through the novel 3D-BER system.

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Section: Bacterial Diversity and Community Compositionmentioning

confidence: 86%

Section: Effect Of Ph On Biodegradation Mechanism Of the Antibiotic Cmentioning

confidence: 99%

Section: Effect Of Ph On Biodegradation Mechanism Of the Antibiotic Cmentioning

confidence: 99%

Section: Bacterial Diversity and Community Compositionmentioning

confidence: 99%

mentioning

confidence: 96%

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Effect of the C/N Ratio on Biodegradation of Ciprofloxacin and Denitrification from Low C/N Wastewater as Assessed by a Novel 3D-BER System

et al. 2020

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Pharmaceutically Active Compounds in Activated Sludge Systems—Presence, Fate, and Removal Efficiency

Kamali

Aminabhavi

Costa

et al. 2023

Green Energy and Technology

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Water quality characteristics and reuse potential using adsorption as a post-treatment option for a full-scale hydrocyclone, coagulation, flocculation, and dissolved air flotation system

Gunawardhana,

Hong,

Choi

et al. 2023

Environ Geochem Health

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Addition of biochar into activated sludge improves removal of antibiotic ciprofloxacin

Cited by 70 publications

References 47 publications

Effect of the C/N Ratio on Biodegradation of Ciprofloxacin and Denitrification from Low C/N Wastewater as Assessed by a Novel 3D-BER System

Effect of the C/N Ratio on Biodegradation of Ciprofloxacin and Denitrification from Low C/N Wastewater as Assessed by a Novel 3D-BER System

Pharmaceutically Active Compounds in Activated Sludge Systems—Presence, Fate, and Removal Efficiency

Water quality characteristics and reuse potential using adsorption as a post-treatment option for a full-scale hydrocyclone, coagulation, flocculation, and dissolved air flotation system

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