Nitrification Inhibition - A Source Identification Method for Combined Municipal and/or Industrial Wastewater Treatment Plants

Kroiß, H.; Schweighofer, P.; Frey, W.; Matsché, N.

doi:10.2166/wst.1992.0555

Cited by 47 publications

(15 citation statements)

References 4 publications

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“…This expression is similar to the expression derived from the extended non-competitive inhibition model used to fit the inhibition of nitrification for combined municipal and industrial wastewater [7].…”

Section: Inhibition Of Nitrification By Phenolmentioning

confidence: 53%

Diversity of nitrifying bacteria in a full-scale petroleum refinery wastewater treatment plant experiencing unstable nitrification

Figuerola

Erijman

2010

Journal of Hazardous Materials

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Section: Inhibition Of Nitrification By Phenolmentioning

confidence: 53%

Diversity of nitrifying bacteria in a full-scale petroleum refinery wastewater treatment plant experiencing unstable nitrification

Figuerola

Erijman

2010

Journal of Hazardous Materials

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“…Treatment means were tested for significant differences at the 5% level using the Bonferroni/Dunn post hoc procedure. The Levenberg-Marquardt algorithm was used to determine the competitive inhibition constant K~, by fitting an equation adapted from Segel ( [45], p. 249) by the method of Kroiss et al [32] V = Km/Vmax)(l + I/K0(1/S) + (l/Vmax) to the AOP assay results, where v is the ammonia oxidation activity observed at each toluene concentration, Km is the affinity constant of ammonia oxidizers for NH3, Vmax is the ammonia oxidizing activity in the presence of no toluene, I is the initial toluene concentration in the assay vessel, and S is the initial NH3 concentration.…”

Section: Discussionmentioning

confidence: 99%

Effects of toluene on microbially-mediated processes involved in the soil nitrogen cycle

Fuller

Scowl

1996

Microb Ecol

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The effects of toluene on indigenous microbial populations involved in the soil nitrogen cycle were examined. Ammonia oxidation potential (AOP) and nitrite oxidation potential (NOP) were both reduced after incubation with high toluene concentrations for 45 days, with the former activity showing greater sensitivity. KCl-extractable ammonium (NH4+ext) levels increased dramatically in soil exposed to high toluene levels, and arginine ammonification was not significantly affected. Alfalfa-amended soil incubated in the presence of 200 txg toluene m1-1 showed progressive accumulation of NH4+eK~ over 37 days, indicating that mineralization of plant-associated nitrogen was not hindered by toluene. AOP in treated soil was much less than in control soil on days 7 and 37, but the MPN of ammonia oxidizers in control and exposed soil were not significantly different. Soil incubated with 100 rxg toluene m1-1 for 28 days, vented and allowed to incubate for an additional 7 to 30 days, exhibited only slight increases in AOP and NOE while NH4+e×t returned to control levels within a week. Soil exposed to 200 txg toluene m1-1 and treated in the same manner showed no increases in either AOP or NOP, and NH4+e~t remained elevated for the duration of the experiment, indicating more longterm effects on soil nitrogen cycling had occurred. Ammonia oxidizer levels in control soil and soil incubated with 100 Ixg toluene ml -~ were not appreciably different, whereas levels of ammonia oxidizers were very low in soil exposed to 200 txg toluene ml -~ and increased only slightly by 30 days post vent. Experiments to determine how toluene affects the AOP of soil indicated a competitive inhibition mechanism, with an effective concentration causing 50% reduction in activity (ECs0) of 11 tXM toluene, and a competitive inhibition constant (K0 of 0.1 _+ 0.05 IXM toluene. These results indicate the potential

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“…Non-competitive, extended noncompetitive, Aiba and Luong inhibition kinetic model has been proposed to autotrophic biological nitrogen removal processes [30,31]:…”

Section: Inhibition Kinetic Modellingmentioning

confidence: 99%

Inhibition of the anammox activity by aromatic compounds

Ramos

Fernández

Suárez-Ojeda

et al. 2015

Chemical Engineering Journal

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The short-term effect of several aromatic compounds (o-cresol, p-nitrophenol, o-chlorophenol and quinoline) was evaluated over granular anammox sludge cultivated over 2 years in a Sequencing Batch Reactor (SBR). The anammox granular sludge had an average size of 1.0 ± 0.2 mm and was enriched in Brocadia sp. Specific Anammox Activity (SAA) batch tests with this granular biomass were carried out in the presence of o-cresol, p-nitrophenol, o-chlorophenol, quinoline and their mixtures. The anammox biomass was never exposed to the tested aromatic compounds, prior to the SAA tests. The concentration and the mixture of aromatic compounds had a strong effect over the loss of the anammox activity. The higher the concentrations of the aromatic compounds, the higher the reduction of the SAA. Quinoline and p-nitrophenol have a lower negative effect compared to o-cresol and ochlorophenol. The Luong inhibition model seems to adjust better the inhibition of anammox biomass by the tested aromatic compounds. Depending on the aromatic compound, toxic or inhibitory effect was measured. o-Cresol and o-chlorophenol caused a toxic effect whereas p-nitrophenol and quinoline produced an inhibitory effect. In general, synergistic effects were observed when mixtures of aromatic compounds were studied.

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Nitrification Inhibition - A Source Identification Method for Combined Municipal and/or Industrial Wastewater Treatment Plants

Abstract: Inhibitionof nitrification at combined municipal

Cited by 47 publications

References 4 publications

Diversity of nitrifying bacteria in a full-scale petroleum refinery wastewater treatment plant experiencing unstable nitrification

Diversity of nitrifying bacteria in a full-scale petroleum refinery wastewater treatment plant experiencing unstable nitrification

Effects of toluene on microbially-mediated processes involved in the soil nitrogen cycle

Inhibition of the anammox activity by aromatic compounds

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