Isolation and Nitrogen Removal Characteristics of an Aerobic Heterotrophic Nitrifying-Denitrifying Bacterium, Klebsiella sp. TN-10

Li, Dan; Liang, Xihong; Yao, Jin; Wu, Chongde; Zhou, Rongqing

doi:10.1007/s12010-018-02932-9

Cited by 51 publications

(17 citation statements)

References 40 publications

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“…Temperature is one of the main process parameters for denitrification. As reported in most studies, the effective range of temperature for aerobic denitrification lies in the mesophilic range of 25–37°C (Joo et al ; Huang et al ; Lei et al ; Li et al ).…”

Section: Environmental Factors Affecting Denitrificationmentioning

confidence: 92%

“…Many different genera of aerobic denitrifying bacteria have been isolated from different environments such as canals, ponds, soils, reservoirs, river sediments, lakes, activated sludge, etc. For example, Acinetobacter junii and Klebsiella pneumonia have been isolated from activated sludge (Padhi et al ; Ren et al ; Li et al ), Paracoccus denitrificans have been isolated from wastewater (Medhi et al ), different strains of Pseudomonas stutzeri have been isolated from wastewater treatment plant (Zhao et al ), activated sludge (Qing et al ) and water reservoirs (Huang et al 2015b; Kang et al ). Other aerobic denitrifiers that have been isolated from different environments and characterized for their nitrate reduction potential are shown in Table .…”

Section: Biological Routes Of Nitrate Removalmentioning

confidence: 99%

“…Neutral to alkaline pH (7–8) is considered most optimal for denitrification (Wang et al . ; Yang et al ; Li et al ). Variation in pH from this range decreases the denitrification efficiency of bacteria.…”

Section: Environmental Factors Affecting Denitrificationmentioning

confidence: 99%

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Role of heterotrophic aerobic denitrifying bacteria in nitrate removal from wastewater

et al. 2020

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With the increase in industrial and agricultural activities, a large amount of nitrogenous compounds are released into the environment, leading to nitrate pollution. The perilous effects of nitrate present in the environment pose a major threat to human and animal health. Bioremediation provides a costeffective and environmental friendly method to deal with this problem. The process of aerobic denitrification can reduce nitrate compounds to harmless dinitrogen gas. This review provides a brief view of the exhaustive role played by aerobic denitrifiers for tackling nitrate pollution under different ecological niches and their dependency on various environmental parameters. It also provides an understanding of the enzymes involved in aerobic denitrification. The role of aerobic denitrification to solve the issues faced by the conventional method (aerobic nitrification-anaerobic denitrification) in treating nitrogenpolluted wastewaters is elaborated. verts the iron centre of haemoglobin from Fe 2+ to Fe 3+ Role of heterotrophic aerobic denitrifying bacteriaA. Rajta et al.

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Section: Environmental Factors Affecting Denitrificationmentioning

confidence: 92%

Section: Biological Routes Of Nitrate Removalmentioning

confidence: 99%

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Role of heterotrophic aerobic denitrifying bacteria in nitrate removal from wastewater

et al. 2020

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“…For example, a heterotrophic nitrification bacterium Klebsiella sp. TN-10 was isolated from tannery wastewater, and it exhibited excellent characteristics to remove both NO 3 − –N and NO 2 − –N, with the removal percentages of 95% and 100%, respectively (Li et al 2019). A novel heterotrophic bacterium Acinetobacter sp.…”

Section: Introductionmentioning

confidence: 99%

Identification and denitrification characteristics of a salt-tolerant denitrifying bacterium Pannonibacter phragmitetus F1

et al. 2019

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A salt-tolerant denitrifying bacterium F1 was isolated in this study, which has high nitrite (NO2−–N) and nitrate (NO3−–N) removal abilities. The salt tolerance capacity of strain F1 was further verified and the effects of initial pH, initial NaNO2 concentration and inoculation size on the denitrification capacity of strain F1 under saline conditions were evaluated. Strain F1 was identified as Pannonibacter phragmitetus and named Pannonibacter phragmitetus F1. This strain can tolerate NaCl concentrations up to 70 g/L, and its most efficient denitrification capacity was observed at NaCl concentrations of 0–10 g/L. Under non-saline condition, the removal percentages of NO2−–N and NO3−–N by strain Pannonibacter phragmitetus F1 at pH of 10 and inoculation size of 5% were 100% and 83%, respectively, after cultivation for 5 days. Gas generation was observed during the cultivation, indicating that an efficient denitrification performance was achieved. When pH was 10 and the inoculation size was 5%, both the highest removal percentages of NO2−–N (99%) and NO3−–N (95%) by strain Pannonibacter phragmitetus F1 were observed at NaCl concentration of 10 g/L. When the NaCl concentration was 10 g/L, strain Pannonibacter phragmitetus F1 can adapt to a wide range of neutral and alkaline environments (pH of 7–10) and is highly tolerant of NaNO2 concentration (0.4–1.6 g/L). In conclusion, strain Pannonibacter phragmitetus F1 has a great potential to be applied in the treatment of saline wastewater containing high nitrogen concentrations, e.g. coastal aquaculture wastewater.

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“…Almost no accumulation of nitrite, nitrate or other intermediates occurs throughout the whole heterotrophic nitrification process, which is consistent with results found for Pseudomonas putida ZN1 [27] and Klebsiella sp. TN-10 [28].…”

Section: Effect Of Different Doses Of Graphene Oxide In Polyvinyl-alcmentioning

confidence: 99%

Denitrification performance of Pseudomonas fluorescens Z03 immobilized by graphene oxide-modified polyvinyl-alcohol and sodium alginate gel beads at low temperature

Tang

Jiang

et al. 2020

R. Soc. open sci.

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2020 Denitrification performance of Pseudomonas fluorescens Z03 immobilized by graphene oxidemodified polyvinyl-alcohol and sodium alginate gel beads at low temperature. R. Soc. open sci. 7: 191542. http://dx.Improving the effect of microbial denitrification under lowtemperature conditions has been a popular focus of research in recent years. In this study, graphene oxide (GO)-modified polyvinyl-alcohol (PVA) and sodium alginate (SA) (GO/PVA-SA) gel beads were used as a heterotrophic nitrification-aerobic denitrification (HN-AD) bacteria (Pseudomonas fluorescens Z03) carrier to enhance nitrogen removal efficiency levels at low temperatures (6-8°C). The removal efficiency of NH þ 4 -N and NO À 3 -N and the variations in concentrations of extracellular polymeric substances (EPS) under different GO doses (0.03-0.15 g l −1 ) were studied. The results indicated that the addition of GO can improve the efficiency of nitrogen removal, and the highest removal efficiency level and highest carbohydrate, protein, and total EPS content levels (50.28 mg, 132.78 mg and 183.06 mg (g GO/PVA-SA gel) −1 , respectively) were obtained with 0.15 g l −1 GO. The simplified Monod model accurately predicted the nitrogen removal efficiency level. These findings suggested that the application of GO serves as an effective means to enhance nitrogen removal by stimulating the activity of HN-AD bacteria.

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Isolation and Nitrogen Removal Characteristics of an Aerobic Heterotrophic Nitrifying-Denitrifying Bacterium, Klebsiella sp. TN-10

Cited by 51 publications

References 40 publications

Role of heterotrophic aerobic denitrifying bacteria in nitrate removal from wastewater

Role of heterotrophic aerobic denitrifying bacteria in nitrate removal from wastewater

Identification and denitrification characteristics of a salt-tolerant denitrifying bacterium Pannonibacter phragmitetus F1

Denitrification performance of Pseudomonas fluorescens Z03 immobilized by graphene oxide-modified polyvinyl-alcohol and sodium alginate gel beads at low temperature

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