Kinetic modeling of Methyl Tert-Butyl Ether (MTBE) removal by bacterial isolated from contaminated soils

Abbasi, Fariba; Azhdarpoor, Abooalfazl; Samaei, Mohammad Reza

doi:10.1080/03067319.2020.1807526

Cited by 8 publications

(3 citation statements)

References 37 publications

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“…Among the existing chemical compounds in use fuels of most countries could be noted to MTBE (Zhang et al 2019). Despite the bans in some countries, it has become the second most common organics detected contamination in municipal groundwaters (Levchuk et al 2014, Purswani et al 2014, Abbasi et al 2020). The American environmental protection agency has been representing the recommended allowable limit of 20 to 40 µg/L for drinking water on the basis of threshold limits of smell and taste and has been placed this substance among compounds that is probable carcinogen for humans (Hu et al 2008).…”

Section: Introductionmentioning

confidence: 99%

WITHDRAWN: Removal of MTBE From Groundwater Using A PRB of ZVI/Sand Mixtures: Role of Nitrate And Hardness

Ghayurdoost

Assadi

Mehrasbi

2021

Preprint

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In this study, the efficiency of the permeable reactive barrier (PRB) in a column reactor using zero-valent iron (ZVI) particles and sand mixture in the removal of methyl tert-butyl ether (MTBE) from aquatic phases was investigated. The main operating parameters influence reactor performance such as pH, reaction time, pollutant content, catalyst load, hydraulic loading rate, and the reaction rate constant was evaluated. The results showed that the efficiency of process decreased with increasing pH, inflow, and pollutant concentration. In this case, the optimal conditions were obtained at pH=7, flow rate=0.23 m3/m2.d and C0=1 mg/L, which achieved a remarkable removal efficiency up to 90.32%. The being of high nitrate and hardness concentrations as intervening factors were led to reduce process efficiency to less than 44.61% and 51.4%, respectively. Lack of interfering factors had a considerable effect on the reaction rate of MTBE reduction that is approximately 2.65 and 4.11 times higher than in the presence of calcium hardness and nitrate, respectively. The PRB can be operated to remediate groundwater containing hydrocarbons based on filling media and hydraulic conditions.

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Section: Introductionmentioning

confidence: 99%

WITHDRAWN: Removal of MTBE From Groundwater Using A PRB of ZVI/Sand Mixtures: Role of Nitrate And Hardness

Ghayurdoost

Assadi

Mehrasbi

2021

Preprint

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“…45 Similarly, another Ochrobactrum isolate demonstrated effective removal of MTBE when introduced as a pure culture or a mixed consortium. 46 A clone group phylogenetically related to Ochrobactrum anthropi was found to be a candidate for anaerobic tert -butyl alcohol (TBA) mineralization in fuel-contaminated aquifer materials under iron- and sulfate-reducing conditions. 47 Furthermore, no studies have clearly demonstrated the growth of Ochrobactrum with propane or 1-propanol.…”

Section: Resultsmentioning

confidence: 99%

Emerging investigator series: environment-specific auxiliary substrates tailored for effective cometabolic bioremediation of 1,4-dioxane

Deng

Pham

2022

Environ. Sci.: Water Res. Technol.

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“…Because the mineralization of the petroleum compounds was performed by consortium cultures at higher concentrations. So that metabolites of one species are used as substrate for other species 34 . In this condition, the inhibitory effect of metabolites and high concentrations of initial substrate was reduced.…”

Section: Resultsmentioning

confidence: 99%

Modelling of n-Hexadecane bioremediation from soil by slurry bioreactors using artificial neural network method

Morovati

Abbasi²,

Samaei³

et al. 2022

Sci Rep

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Diesel oil is known to be one of the major petroleum products that can pollute water and soil. Soil pollution caused by petroleum hydrocarbons has substantially impacted the environment, especially in the Middle East. In this study, modeling and optimization of hexadecane removal from soil was performed using two pure cultures of Acinetobacter and Acromobacter and consortium culture of both bacterial species using artificial neural network (ANN) method. Then the best ANN structure was proposed based on mean square error (MSE) as well as correlation coefficient (R) for pure cultures of Acinetobacter and Acromobacter as well as their consortium. The results showed that the correlations between the actual data and the data predicted by ANN (R2) in Acromobacter, Acinetobacter and consortium of both cultures were 0.50, 0.47 and 0.63, respectively. Despite the low correlation between the experimental data and the data predicted by the ANN, the correlation coefficient and the precision of ANN for the consortium was higher. As a result, ANN had desirable precision to predict hexadecan removal by the cobsertium culture of Ochromobater and Acintobacter.

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Kinetic modeling of Methyl Tert-Butyl Ether (MTBE) removal by bacterial isolated from contaminated soils

Cited by 8 publications

References 37 publications

WITHDRAWN: Removal of MTBE From Groundwater Using A PRB of ZVI/Sand Mixtures: Role of Nitrate And Hardness

WITHDRAWN: Removal of MTBE From Groundwater Using A PRB of ZVI/Sand Mixtures: Role of Nitrate And Hardness

Emerging investigator series: environment-specific auxiliary substrates tailored for effective cometabolic bioremediation of 1,4-dioxane

Modelling of n-Hexadecane bioremediation from soil by slurry bioreactors using artificial neural network method

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