Bioelectrochemical system for anaerobic oily wastewater treatment: Biokinetic &amp; energy consumption studies

Mirshafiee, Amir; Rezaee, Abbas

doi:10.1016/j.jwpe.2021.102420

Cited by 7 publications

(3 citation statements)

References 38 publications

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“…As can be seen from Table 6, a coefficients obtained in studies other than Ketchup in ABR (Sumantri et al 2019) and Synthetic oily in BER (Mirshafiee and Rezaee 2021) are lower than b values. In this study, similar to Sumantri et al (2019) and Mirshafiee and Rezaee (2021), the b value is higher, but the range between the two parameters is much larger compared to the results of the researchers' studies.…”

Section: Kinetic Analysis Using the Grau Second-order Kinetic Modelcontrasting

confidence: 55%

Kinetics of Organic Matter Removal in Olive Mill Wastewater and Cheese Whey Effluent using Microfiltration Membrane

Akdemir

2024

Preprint

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In this study, a laboratory-scale microfiltration membrane system was operated with olive oil industry wastewater (OMW) and cheese whey effluent (CWE) with chemical oxygen demand (COD) concentrations of 54 and 65.6 g/L at flow rates (Q) of 100, 150, and 200 L/h, pressures of 1 and 2 bar, filtration times considered as four different hydraulic retention time (q) of 30, 60, 90, and 120 min, respectively. COD removal efficiencies decreased with decreasing q from 120 min to 30 min and increasing pressure. In this study, mathematical models such as first-order kinetics, Grau second-order, and Modified Stover-Kincannon models were applied to determine the organic matter removal kinetics of the microfiltration membrane system. The model’s kinetic parameters were determined by linear regression using the experimental data. The predicted effluent COD concentrations were calculated using the kinetic constants. Grau second-order and Modified Stover-Kincannon models were found to be more consistent with the observed data. Moreover, the correlation coefficient (R2) obtained for the experimental and predicted effluent COD concentration also confirmed the suitability of the kinetic models and showed that the models can be used in the kinetics of organic matter removal in microfiltration membrane system design, thus predicting the behavior of the membrane for treating olive oil industry wastewater and cheese whey effluent. The experimental results obtained in this study are expected to be used as a reference for the determination of organic matter removal kinetics in membrane systems.

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Section: Kinetic Analysis Using the Grau Second-order Kinetic Modelcontrasting

confidence: 55%

Kinetics of Organic Matter Removal in Olive Mill Wastewater and Cheese Whey Effluent using Microfiltration Membrane

Akdemir

2024

Preprint

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confidence: 99%

“…The highest COD removal efficiency using the introduced method was 86.7%, and using general biological processes was 65.9%. In their research, the energy consumption of the biochemical system was 1.91 kWh/m 3 (kilowatt hour per cubic meter) 12 .Based on the results of Rocha et al 11 , dos Santos et al 7 investigated a semi-industrial scale electrochemical flow system for petrochemical wastewater treatment using Titanium/Platinum (Ti/Pt) and BDD anodes. They showed that the research results were successful because compared to the results of Rocha and his colleagues, which were done in batch mode, a higher performance was obtained in the removal of organic matter.…”

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confidence: 99%

Application of electro oxidation process for treating wastewater from petrochemical with mixed metal oxide electrode

Mirshafiee,

Nourollahi,

Shahriary

2024

Sci Rep

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Petrochemicals require a large volume of water for their operation, which results in the production of a large volume of wastewater. Treatment of petrochemical wastewater is an important process before discharging it into the environment. This research examines the treatment of real petrochemical wastewater using the electrochemical oxidation process. Direct anodic oxidation is an effective advanced electrochemical oxidation process (AEOP), with different electrodes using a parallel plate electrochemical reactor. Four types of real wastewater were received from different petrochemical units were treated by AEOP. Real wastewater samples with chemical oxygen demand (COD) concentrations ranging from 20,450 to 52,300 mg/l. The main goal of this research is to make electrodes of Mixed Metal Oxide (MMO), which can reduce the treatment time and electricity consumption for oxidation, greater stability of the surface of the electrodes. Investigation of the rate constant kinetics shows that high COD removal efficiency can be achieved following the pseudo-second order reaction rate (R2 > 98%). When the wastewater pH is less than 5, COD removal efficiency is higher and the treatment process will be successful, which succeeded in removing 79% COD, but in alkaline wastewater, COD reduction efficiency was not satisfactory. The electricity consumption for 79% removal during 6 min was 117 kWh/m3. As a result, due to the very short time of the process (6 min), it can be used as one of the pre-treatment steps of petrochemical wastewater with acidic pH.

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Homogeneously and heterogeneously structured biofilm models for wastewater treatment

Yang

Wang

Chang

et al. 2022

Bioresource Technology

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Bioelectrochemical system for anaerobic oily wastewater treatment: Biokinetic & energy consumption studies

Cited by 7 publications

References 38 publications

Kinetics of Organic Matter Removal in Olive Mill Wastewater and Cheese Whey Effluent using Microfiltration Membrane

Kinetics of Organic Matter Removal in Olive Mill Wastewater and Cheese Whey Effluent using Microfiltration Membrane

Application of electro oxidation process for treating wastewater from petrochemical with mixed metal oxide electrode

Homogeneously and heterogeneously structured biofilm models for wastewater treatment

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