The role of glucose in developing enhanced biological phosphorus removal

Wang, Niandong; Hill, Gordon A.; Peng, Jian

doi:10.1007/s100220100047

Cited by 16 publications

(2 citation statements)

References 14 publications

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“…Furthermore, glucose can play a key role in the conversion of short‐chain fatty acids in the enhanced biological phosphorus removal system. Glucose or other simple sugars such as fructose acted as important substrates for enzyme production and cell growth . Hence, the addition of nutrients is suggested as one of the most key factors affecting PAH biodegradation.…”

Section: Resultsmentioning

confidence: 99%

Biosorption and biotransformation of fluoranthene by the white‐rot fungus Pleurotus eryngii F032

Hadibarata

Kristanti

Hamdzah

2014

Biotech and App Biochem

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Major concern about the presence of fluoranthene, which consists of four fused benzene rings, in the environment has been raised in the past few years due to its toxic, mutagenic, and persistent organic pollutant properties. In this study, we investigated the removal of fluoranthene under static and agitated conditions. About 89% fluoranthene was removed within 30 days under the agitated condition, whereas under the static condition, only 54% fluoranthene was removed. We further investigated the behavior and mechanism of fluoranthene biosorption and biotransformation by Pleurotus eryngii F032 to accelerate the elimination of fluoranthene. The optimum conditions for the elimination of fluoranthene by P. eryngii F032 included a temperature of 35 °C, pH 3, 0.2% inoculum concentration, and a C/N ratio of 16. Under these conditions at the initial fluoranthene concentration of 10 mg/L, more than 95% of fluoranthene was successfully removed within 30 days. Of those factors influencing the biodegradation of fluoranthene, salinity, glucose, and rhamnolipid content were of the greatest importance. Degradation metabolites identified using gas chromatography-mass spectrometry were 1-naphthalenecarboxylic acid and salicylic acid, suggesting possible metabolic pathways. Finally, it can be presumed that the major mechanism of fluoranthene elimination by white-rot fungi is to mineralize polycyclic aromatic hydrocarbons via biotransformation enzymes like laccase.

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Section: Resultsmentioning

confidence: 99%

Biosorption and biotransformation of fluoranthene by the white‐rot fungus Pleurotus eryngii F032

Hadibarata

Kristanti

Hamdzah

2014

Biotech and App Biochem

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“…[4][5][6][7] It is well established that the presence of SCVFAs play an important role in EBPR systems. [8][9][10][11][12][13] In addition, it is known that the amount and type of VFAs present has a significant influence on biological P removed from wastewater. [14][15][16][17] The quantities of VFAs that can be produced in sewer lines depend on many factors, including the composition of the wastewater and temperature.…”

Section: Introductionmentioning

confidence: 99%

Impact of butyrate on microbial selection in enhanced biological phosphorus removal systems

Begum¹,

Batista²

2014

Environmental Technology

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Microbial selection in an enhanced biological phosphorus removal system was investigated in a laboratory-scale sequencing batch reactor fed exclusively with butyrate as a carbon source. As reported in the few previous studies, butyrate uptake was slow and phosphorus (P) release occurred during the entire anaerobic period. Polyphosphate-accumulating organism (PAO), i.e. Candidatus Accumulibacter phosphatis (named as Accumulibacter), glycogen-accumulating organisms (GAOs), i.e. Candidatus Competibacter phosphatis (named as Competibacter) and Defluviicoccus-related, tetrad-forming alphaproteobacteria (named as Defluviicoccus) were identified using fluorescence in situ hybridization analysis. The results show that Accumulibacter and Defluviicoccus were selected in the butyrate-fed reactor, whereas Competibacter was not selected. P removal was efficient at the beginning of the experiment with an increasing percentage relative abundance (% RA) of PAOs. The % RA of Accumulibacter and Defluviicoccus increased from 13% to 50% and 8% to 16%, respectively, and the % RA of Competibacter decreased from 8% to 2% during the experiment. After 6 weeks, P removal deteriorated with the poor correlation between the percentage of P removal and % RA of GAOs.

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Characterization of pyrene biodegradation by white‐rot fungus Polyporus sp. S133

Hadibarata

Kristanti

Fulazzaky

et al. 2012

Biotech and App Biochem

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A white-rot fungus of Polyporus sp. S133 was isolated from an oil-polluted soil. The metabolism of pyrene by this fungus was investigated in liquid medium with 5 mg of the compound. Depletion of pyrene was evident during the 30-day growth period and was 21% and 90%, respectively, in cometabolism and metabolism of pyrene alone. Pyrene was absorbed to fungal cells or biodegraded to form simpler structural compounds. Seventy-one percent of eliminated pyrene was transformed by Polyporus sp. S133 into other compounds, whereas only 18% was absorbed in the fungal cell. The effects of pH and temperature on biomass production of Polyporus sp. S133 for pyrene were examined; the properties of laccase and 1,2-dioxygenase produced by Polyporus sp. S133 during pyrene degradation were investigated. The optimal values of pH were 3, 5, and 4 for laccase, 1,2-dioxygenase, and biomass production, respectively, whereas the optimal values of temperature were 25 °C for laccase and 50 °C for 1,2-dioxygenase and biomass production. Under optimal conditions, pyrene was mainly metabolized to 1-hydroxypyrene and gentisic acid. The structure of 1-hydroxypyrene and gentisic acid was determined by gas chromatography-mass spectrometry after identification using thin-layer chromatography.

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The role of glucose in developing enhanced biological phosphorus removal

Cited by 16 publications

References 14 publications

Biosorption and biotransformation of fluoranthene by the white‐rot fungus Pleurotus eryngii F032

Biosorption and biotransformation of fluoranthene by the white‐rot fungus Pleurotus eryngii F032

Impact of butyrate on microbial selection in enhanced biological phosphorus removal systems

Characterization of pyrene biodegradation by white‐rot fungus Polyporus sp. S133

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