Simulation analysis of operating conditions for a municipal wastewater treatment plant at low temperatures

Funamizu, Naoyuki; Takakuwa, Tetsuo

doi:10.1007/978-3-642-58607-1_14

Cited by 5 publications

(5 citation statements)

References 12 publications

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“…Also, there is the option of estimating the Q10 values using Arrhenius graphs or by monitoring the rate of growth at a range of ten-degree-variable temperature ranges. The gradient of the graph of Arrhenius curve follows when the growth rates or bioreduction are plotted using the logarithmic scale (Kelvin) [50] (Fig. 1).…”

Section: Resultsmentioning

confidence: 99%

The Effect of Temperature on the Specific Growth Rate of Bacillus circulans strain Neni-10 on Metanil Yellow: Determination of Activation energy, Temperature Coefficient and Q10 Value

Rusnam,

Nasution,

Shukor

et al. 2023

Bull Environ Sci Sust Manage

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bioremediation process, analyzing the effect of temperature to the specific growth values of a remediating microbes on a particular xenobiotic will yield important information that can be translated into the field in future studies. Due to their tiny size, microbes are particularly very sensitive to variations in temperature. Temperature typically influences the growth and metabolic activity of bacterium on the substrates they are grown upon. There are several models that may be utilized to mimic the rate of growth of microbes on a numerous plethora of substrate or media at varying temperatures. Among the most often adopted models is the Arrhenius model, in part because to its minimal parameter number. To study the effect of temperature on Bacillus circulans strain Neni-10 growth on Metanil Yellow, a chevron-like graph with a discontinuous apparent activation energy was observed. The graph's exhibited a breakpoint at 31.91 °C. Per the regression analysis obtained, the activation energy needed for growth on Metanil Yellow at temperatures ranging between 20 and 30 °C was 62.07 kJ/mol. At temperatures ranging from 35 to 45 °C, its activation energy reduces to 30.93 kJ/mol. At a temperature of 35 °C, the maximum growth rate of the bacterium on Metanil Yellow occurred, and this rate was found to be reduced as the temperature was increased.

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Section: Resultsmentioning

confidence: 99%

The Effect of Temperature on the Specific Growth Rate of Bacillus circulans strain Neni-10 on Metanil Yellow: Determination of Activation energy, Temperature Coefficient and Q10 Value

Rusnam,

Nasution,

Shukor

et al. 2023

Bull Environ Sci Sust Manage

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“…The so-called "bottleneck" theory is still widely accepted in the academic community [19,46]. As an alternative, the Arrhenius plots can be used to estimate the Q10 values, or the Q10 values can be obtained by monitoring the growth rates at varied temperatures with a range of ten degrees [47]. Logarithmic against 1000/Kelvin plot is the Arrhenius curve plot for the bioreduction and growth rates against the Arrhenius curve (Fig.…”

Section: Resultsmentioning

confidence: 99%

Activation energy, Temperature Coefficient and Q10 Value Estimations of the Growth of Alcaligenes sp. YLA11 on Diesel

Yakasai

Abubakar

2022

Bull Environ Sci Sust Manage

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Several models can be used to mimic the temperature-dependent growth rate of microorganisms on different media. Arrhenius is a popular model because of its small number of parameters. Microbial growth and metabolic activity on their substrates are generally affected by temperature. Microbes are vulnerable to temperature changes because of their small size. With a chevron-like discontinuous graph of apparent activation energy and a breakpoint, growth on diesel by Alcaligenes sp. YLA11 is described showing a breakpoint at 28.05 °C. Regression analysis resulted in two activation energies: 20–27 °C and 30–42 °C with the activation energies of 41.72 kJ/mol and 84.72 kJ/mol, respectively. For the examined temperature range (30-42 °C), a Q10 value of 2.905 and a theta value of 1.11 was calculated. Predicting the breakdown of diesel and its movement during bioremediation is an output that can be predicted by parts of this study.

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“…The "bottleneck" notion is still widely held in the academic community [37,68]. There is also the possibility of calculating the Q10 values by utilizing the Arrhenius plots or by measuring the growth rates at a range of incubation temperatures that varied by ten degrees [69]. The Arrhenius curve is the slope of the plot that is produced when the bioreduction and growth rates are plotted logarithmically versus temperature in the form of a temperature logarithm (Kelvin).…”

Section: Resultsmentioning

confidence: 99%

Activation Energy, Temperature Coefficient and Q10 Value Estimations of the Growth of 2,4-dinitrophenol-degrading Bacterium on 2,4-dinitrophenol

Yakasai

Zin

Shukor

2022

J Environ Bioremed Toxicol

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In addition to its use as a pesticide, the chemical compound known as 2,4-dinitrophenol (2,4-DNP) is also utilized in the creation of wood preservatives and colors. Symptoms of acute (short-term) exposure to 2,4-DNP in humans include nausea or vomiting, sweating, headaches, disorientation, and a loss of weight. This type of exposure occurs when the substance is consumed orally. There are a few different models that may be used to simulate the growth rate of microorganisms on a variety of different medium at a range of temperatures. These models can be found online. One of the models that is employed the most frequently is the Arrhenius model, in part because it has a limited number of parameters. The development and metabolic activities of bacteria on the substrates they are grown on are commonly influenced by temperature. Temperature can also affect the growth of germs. Microbes are extremely sensitive to changes in temperature because of their small size. A discontinuous apparent activation energy with a chevron-like graph was used in order to describe the growth of a 2,4-dinitrophenol-degrading bacterium on 2,4-dinitrophenol. The break point of the graph was set at 28.05 °C. This was done so that the development of the bacterium could be described. Following the conclusion of the regression analysis, two temperature ranges for activation were determined. These temperature ranges were 20-27 °C and 30-42 °C, and their associated activation energies were 41.72 and 84.72 kilojoules per mole, respectively. It was anticipated that the Q10 value would be 2.905 and that the theta value would be 1.11 when considering the temperature range that was considered (30-42 °C). Due to the all-encompassing scope of this study, it is particularly useful for forecasting the effect of temperature on the breakdown and fate of 2,4-dinitrophenol during bioremediation.

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Simulation analysis of operating conditions for a municipal wastewater treatment plant at low temperatures

Cited by 5 publications

References 12 publications

The Effect of Temperature on the Specific Growth Rate of Bacillus circulans strain Neni-10 on Metanil Yellow: Determination of Activation energy, Temperature Coefficient and Q10 Value

The Effect of Temperature on the Specific Growth Rate of Bacillus circulans strain Neni-10 on Metanil Yellow: Determination of Activation energy, Temperature Coefficient and Q10 Value

Activation energy, Temperature Coefficient and Q10 Value Estimations of the Growth of Alcaligenes sp. YLA11 on Diesel

Activation Energy, Temperature Coefficient and Q10 Value Estimations of the Growth of 2,4-dinitrophenol-degrading Bacterium on 2,4-dinitrophenol

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