Biological characteristics of a denitrifying phosphorus-accumulating bacterium

Sun, Lianpeng; Zhao, Xinxin; Zhang, Huifang; Zhang, Yanqiu

doi:10.1016/j.ecoleng.2015.04.030

Cited by 41 publications

(11 citation statements)

References 24 publications

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“…Trace element solution(27)(per liter): 1.5 g of FeCl 3 ·6H 2 O, 0.15 g of H 3 BO 3 , 0.03 g of CuSO 4 ·5H 2 O, 0.03 g of KI, 0.06 g of Na 2 MoO 4 ·2H 2 O, 0.12 g of MnCl 2 ·4H 2 O, 0.12 g of ZnSO4·7H2O, 0.12 g of CoCl 2 ·2H 2 O.…”

Section: Methodsmentioning

confidence: 99%

Nitrogen utilization and transformation ofStenotrophomonas maltophiliaW-6 with nitrogen-fixing ability

Wang

2018

Preprint

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14Strain W-6 was isolated from the purple soil and successfully identifed as 15Stenotrophomonas maltophilia and used for the investigation on nitrogen utilization. 16Strain W-6 was monitored with the ability of biological nitrogen fixation when N 2 was 17 used for the sole nitrogen source, and yet nitrogenase activity would be inhibited in the 18 presence of extra nitrogen. Moreover, Strain W-6 could utilize NO 3 -, NO 2 -and NH 4 + for 19 cell growth through assimilation, but unable to convert them to atmospheric nitrogen. 20Meantime, accumulation of nitrite was observed during the nitrate removal process, and 21. CC-BY-NC-ND 4.0 International license It is made available under a was not peer-reviewed) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity.The copyright holder for this preprint (which . http://dx.doi.org/10.1101/337386 doi: bioRxiv preprint first posted online Jun. 3, 2018; 2 the optimal conditions for nitrate removal were temperature of 20℃, shaking speed of

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Section: Methodsmentioning

confidence: 99%

Nitrogen utilization and transformation ofStenotrophomonas maltophiliaW-6 with nitrogen-fixing ability

Wang

2018

Preprint

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“…The main possible reason was the formation of chemical precipitation phosphate compounds. Some phosphorus precipitations were absorbed on the surface of bacteria, it hindered the absorption and release of phosphate by denitrifying polyphosphate accumulating organisms (Sun et al, 2015). Experimental results showed that anaerobic phosphorus release was the maximum under pH 8.…”

Section: Figure 1 Effect Of Ph On Phosphorus Concentration and Release And Uptake Ratementioning

confidence: 99%

“…Many scholars studied the relationship between pH and biological phosphorus removal characteristics, it was found that the efficiency of anoxic phosphate uptake enhanced with the increase of pH for DNPAOs sludge. (Smolders et al, 1994;Sun et al, 2015;Liu et al, 2015). However, there is no publication investigated the mechanism of denitrifying polyphosphate accumulating organisms with nitrite as electron acceptor under different pH values till now.…”

Section: Introductionmentioning

confidence: 99%

Effect of Ph and SRT on Denitrifying Phosphorus Removal in A2n Sequencing Batch Reactor Process

Li¹

2019

Appl. Ecol. Env. Res.

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This research investigates the effect of pH and sludge retention time (SRT) on denitrifying phosphorus removal. A series of experiments were conducted using two 20L sequencing batch units with the following configuration: anaerobic/anoxic and aerobic sequencing batch reactors (SBRs). It was found that variation in pH form 6.5 to 8 resulted in obvious increase in phosphorus release and uptake, organic matter degradation [measured by the chemical oxygen demand (COD) and the percentage volatile suspended solid (VSS)] and polyhydroxybutyrate (PHB) accumulation also showed a rising trend in the anaerobic period, but sludge acclimatized under pH 8.5 condition exhibited a slightly lower denitrifying phosphorus removal capability. In addition, the rates of phosphorus release and uptake were 20.95 and 23.29 mg/g VSS / h in condition of pH 8 value. Activated sludge with the SRT of 16 days possessed better nitrite nitrogen utilization, organic matter degradation and phosphorus removal than sludge with the SRT of 6, 10 and 22 days, and polyphosphate concentration in anaerobic activated sludge per VSS decreased to 23.1 mg/g VSS, PHB concentration in anoxic activated sludge per VSS reduced to16.3 mg/g VSS, thus, a dramatic denitrifying dephosphatation has occurred.

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“…We observed a direct average correlation between the concentrations of total phosphorus (r D 0:477; p D 0:034; p Ä 0:05) and the nitrate reducing bacteria populations from the sampling zones Chico Custodia, Grande Centro, and Hato Laguna. Sun et al [24] described that phosphorus is used by denitrifying bacteria, under aerobic conditions. These bacteria can absorb short chain fatty acids and phosphates, which they store in polyhydroxyalkanoate inclusions or granules.…”

Section: Correlations Between Nutrients Physicochemical Variables and Abundance Of Cultivable Denitrifying Bacteriamentioning

confidence: 99%

Denitrifying bacteria in the limnetic zone of Lake Tota, Colombia

Másmela-Mendoza

Forero

2021

Univ. Sci.

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The objective of study was to isolate and determine the identity of denitrifying bacteria from limnetic areas of Lake Tota (Colombian Andes) with and without rainbow trout production activities. We examined the relationships between the lake’s physicochemical factors (oxygen, nitrogen, and phosphorus content) and two bacterial communities (denitrifying bacteria and coliforms). Water samples were taken 20m below the surface from July to September at five limnetic zones; two of which were close to rainbow trout farming areas. In each zone, the concentrations of oxygen, nitrogen, and phosphorus were measured. To identify and quantify the abundance of bacteria, the most probable number (MPN) technique was used, employing minimal medium for denitrifying bacteria and medium for nitrate reducing bacteria (NRB). A greater number of denitrifying bacteria were found in the fish farming zones, identifying bacteria of the genera Bacillus, Pseudomonas, Nocardia, and Streptomyces. The number of nitrate-reducing bacteria revealed statistically significant differences throughout the sampling period, increasing from July to September and was related to a decrease in precipitation. The density of NRB and total phosphorus were directly correlated. High bacterial densities of denitrifyingbacteria and coliforms are indicative of changes from oligotrophic to eutrophic states in the studied limnetic areas.

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Biological characteristics of a denitrifying phosphorus-accumulating bacterium

Cited by 41 publications

References 24 publications

Nitrogen utilization and transformation ofStenotrophomonas maltophiliaW-6 with nitrogen-fixing ability

Nitrogen utilization and transformation ofStenotrophomonas maltophiliaW-6 with nitrogen-fixing ability

Effect of Ph and SRT on Denitrifying Phosphorus Removal in A2n Sequencing Batch Reactor Process

Denitrifying bacteria in the limnetic zone of Lake Tota, Colombia

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