Simultaneous aerobic denitrification and antibiotics degradation by strain Marinobacter hydrocarbonoclasticus RAD-2

Ruan, Yunjie; Awasthi, Mukesh Kumar; Cai, Lei; Lu, Haijun; Xu, Xiangyang; Wen-bing, LI

doi:10.1016/j.biortech.2020.123609

Cited by 45 publications

(19 citation statements)

References 39 publications

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“…The DM was prepared at the ratio of KNO 3 (sole nitrogen substance, NO 3 − -N concentration 300 mg/L), sodium acetate (sole organic-carbon substance, C/N ratio fixed on 10), 0.2 g/L MgSO 4 ·7H 2 O, 1.0 g/L K 2 HPO 4 , and 1.0% ( v / v ) trace-element solution. The trace-element solution contained 50.0 g/L ethylenediaminetetraacetic acid (EDTA), 2.2 g/L ZnSO 4 , 5.5 g/L CaCl 2 , 5.06 g/LMnCl 2 ·4H 2 O, 5.0 g/L FeSO 4 ·7H 2 O, 1.1 g/L (NH 4 ) 6 Mo 7 O 2 ·4H 2 O, 1.57 g/L CuSO 4 ·5H 2 O, 25 g/L NaCl and 1.61 g/LCoCl 2 ·6H 2 O [ 8 ]. Two typical antibiotics, CFX and OTC, were employed in the form of hydrochloride, and a concentration series was set up at 0, 50, 100, 150, 200, and 300 μg L −1 .…”

Section: Methodsmentioning

confidence: 99%

“…During this experiment, the concentration of CFX or OTC at 12, 24, and 48 h was determined, and five replicates for each treatment were employed. Detailed information on the CFX or OTC analysis procedures can be found in our recently published reports [ 8 ].…”

Section: Methodsmentioning

confidence: 99%

“…After incubation for 48 h at 30 °C under aerobic or anaerobic conditions, 5 mL of the headspace product was sampled using a 25 mL syringe for N 2 O analysis by gas chromatography (GC-2010 Plus SHIMADZU, Kyoto, Japan). Detailed information on the analysis procedure can be found in our recently published reports [ 8 ].…”

Section: Methodsmentioning

confidence: 99%

“…For instance, the spread of antibiotic-resistant bacteria (ARB) and corresponding antibiotic resistance genes (ARGs) has become a worldwide health issue [ 7 ]. Tetracyclines (TCs) are one of the most widely used classes of antibiotics, both for human and veterinary treatment, due to their low price, favorable pharmacokinetic characteristics, and the width of the antibacterial spectrum [ 8 , 9 ]. Due to their low utilization rate by humans and animals, 60% to 90% of TCs enter the environment by the excrement of parent compounds or metabolites [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

“…Due to their low utilization rate by humans and animals, 60% to 90% of TCs enter the environment by the excrement of parent compounds or metabolites [ 10 ]. As a result, TCs have been detected in various matrices, including soil and sediment [ 8 , 11 ], sewage sludge [ 12 ], wastewater [ 13 ], surface water [ 14 ], and groundwater [ 15 , 16 ]. Therefore, TC resistance (tet) genes are frequently detected in the environment, especially in sewage sludge, during the treatment of municipal wastewater [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

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Performance of Aerobic Denitrification by the Strain Pseudomonas balearica RAD-17 in the Presence of Antibiotics

Ruan

Cai

Lu³

et al. 2021

Microorganisms

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Aerobic denitrification, one of the important nitrate metabolic pathways in biological denitrification, has been attracting increasing interest recently due to its functional advantages. In order to evaluate the effect of antibiotics on aerobic denitrification and guide practical engineering application of aerobic denitrification techniques, we evaluated the performance of aerobic denitrification by the strain Pseudomonas balearica RAD-17 in the presence of ciprofloxacin (CFX) and oxytetracycline (OTC). No significant negative impact on the performance of aerobic denitrification in the presence of CFX or OTC within the range of 50 to 300 μg L−1 was found. Significant degradation of OTC was found within the range of 50 μg L−1 to 300 μg L−1 under aerobic denitrification conditions, while no degradation was found for CFX. Stimulation of cell growth occurred within the investigated range of antibiotics. Under anoxic or aerobic conditions, the addition of CFX or OTC changed the N2O production trend. The results in the present study may play an important role in informing the use of aerobic denitrification techniques in the presence of antibiotics within environmentally relevant concentrations (<1 mg/L).

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Performance of Aerobic Denitrification by the Strain Pseudomonas balearica RAD-17 in the Presence of Antibiotics

Ruan

Cai

Lu³

et al. 2021

Microorganisms

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Effect of sulfamethoxazole on nitrate removal by simultaneous heterotrophic aerobic denitrification

Progress

Zhao

Wang

et al. 2022

Water Environment Research

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The increase in mariculture activities worldwide has not only led to a rise of nitrogen compounds in the ecosystem but has also intensified the accumulation of antibiotics in both terrestrial and marine environments. This study focused on the effect of typical antibiotics, specifically sulfamethoxazole (SMX) on nitrate removal from mariculture wastewater by aerobic denitrification process; an aerobic denitrification system feeding with 148.2 mg/L COD, 8.59 mg/L nitrate, 0.72 mg/L nitrite, and 4.75 mg/L ammonium was set up. The hydraulic retention time (HRT) was 8 h. As the aerobic bioreactor started up successfully without SMX dosage, an excellent removal of ammonium, nitrite, and nitrate was achieved at 91.35%, 93.33%, and 88.51%, respectively; the corresponding effluent concentrations were 0.41 mg/L, 0.048 mg/L, and 0.96 mg/L. At the influent SMX doses of 0, 1, 5, and 10 mg/L, the COD removal reached 96.91%, 96.27%, 88.69%, and 85.89%, resulting in effluent concentrations of 4.53, 5.45, 17.38, and 20.6 mg/L, respectively. Nitrification was not inhibited by SMX dosage. However, aerobic denitrification was inhibited by 10 mg/L SMX. Proteobacteria was the most abundant phylum, and surprisingly its abundance increased with the increase in SMX concentration. An excellent SMX degradation was noted at initial SMX dosages of 1, 5, and 10 mg/L; the removal rate was 100%,100%, and 99.8%, respectively. The SMX degrading genera Comamonas sp., Acinetobacter sp., and Thauera sp. are of great validity to wastewater engineers because they have demonstrated efficiency in simultaneous heterotrophic aerobic denitrification and antibiotic degradation as well as COD removal. Practitioner Points Nitrification was not inhibited by increase in SMX dosage. An increase in SMX dosage inhibited aerobic denitrification. COD removal was not affected by increased SMX dosage. Comamonas, Acinetobacter, and Thauera had high efficiency in COD removal and SMX degradation.

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MoS2 and Fe3O4 modified spongy wood with micro-reaction cellulose channels and natural water transfer to enhance tetracycline removal

Zhang

Wang

et al. 2022

Cellulose

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Simultaneous aerobic denitrification and antibiotics degradation by strain Marinobacter hydrocarbonoclasticus RAD-2

Cited by 45 publications

References 39 publications

Performance of Aerobic Denitrification by the Strain Pseudomonas balearica RAD-17 in the Presence of Antibiotics

Performance of Aerobic Denitrification by the Strain Pseudomonas balearica RAD-17 in the Presence of Antibiotics

Effect of sulfamethoxazole on nitrate removal by simultaneous heterotrophic aerobic denitrification

MoS2 and Fe3O4 modified spongy wood with micro-reaction cellulose channels and natural water transfer to enhance tetracycline removal

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