Substrate Removal Kinetics of Hydrogen Production in an Anaerobic Sludge Blanket Filter

Mullai, P.; Yogeswari, M. K.

doi:10.1080/01496395.2014.969806

Cited by 15 publications

(4 citation statements)

References 33 publications

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“…The U max and K B values were calculated for COD removal data as 910 g/l.d and 938.9 g/l.d, respectively, which were higher than those reported for moving bed biofilm reactor (Hassani et al . ), anammox up‐flow filter (Jin & Zheng ) and anaerobic sludge blanket filter (Mullai & Yogeswari ). This implies that MIW contains readily biodegradable substrates and the bioreactor has substantial COD removal capacity (Asadi et al .…”

Section: Resultsmentioning

confidence: 99%

Modeling the kinetics and cost performance index of high rate up‐flow anaerobic, anoxic, oxic bioreactor for meat wastewater treatment

Abyar

Younesi

Bahramifar

et al. 2018

Water & Environment J

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The simultaneous biological removal of COD, TN and phosphorus from meat industrial wastewater (MIW) using a lab‐scale high rate up‐flow anaerobic–anoxic–oxic bioreactor (A2O bioreactor) was investigated. The bioreactor was operated at different HRT, COD/TN ratio and aerated volume fractions to monitor the COD and nutrient removal efficiency. The maximum COD removal rate was detected at HRT of 5 h and COD/TN ratio of 100 : 12. The total nitrogen removal efficiency was changed between 65.8 and 94.4% and the lowest effluent nitrate concentration was measured as 1.6 mg/l. Seven kinetic models were applied to experimental data to determine the substrate utilization rate. The Monod and Haldane models were ideal to estimate the reactor performance. Moreover, the cost performance evaluation indicated the A2O bioreactor capability in low energy consumption for MIW treatment. According to the modeling results, integrating anaerobic and aerobic zones within a single bioreactor could be beneficial and cost‐effective due to the high effluent quality and low operational costs.

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Section: Resultsmentioning

confidence: 99%

Modeling the kinetics and cost performance index of high rate up‐flow anaerobic, anoxic, oxic bioreactor for meat wastewater treatment

Abyar

Younesi

Bahramifar

et al. 2018

Water & Environment J

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“…The first-order bio-kinetic model coefficients k1 and R 2 were calculated from the slope of the line at steady-state by plotting (S0-Se) /HRT versus Se wastewater. The plot of (S0 -Se) /HRT and Se yielded a straight line as depicted in Fig 4 . Ammonia removal constants, k1 were found to be 5 and 3.9 per day, whereas R 2 was 0.97 [41,42]. For first-order kinetics, the k1 value was low, and the higher the k1 value, the larger the degrading capability of the microorganism.…”

Section: First-order Kineticmentioning

confidence: 90%

Kinetics study of nutrients removal from synthetic wastewater using media as submerged in continuous activated sludge system

2023

Sustainable Processes and Clean Energy Transition

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Abstract. Domestic wastewater effluents are one of the main sources of environmental contaminants such as nutrients. Wastewater has been treated with biological processes for over a century to remove contaminants. Conventional wastewater treatment plants continue to struggle to meet Malaysian discharge limits. Stringent regulation enforced by governing authorities makes it obligatory to comply with discharge guidelines to fulfill ammonia and nitrate levels. To assist the system in meeting these limits, it is recommended that a submerged attached growth Palm Oil Clinker (POC) can be incorporated into the conventional treatment system. The study was conducted in a continuous submerged attach growth conventional activated sludge which was evaluated for the treatment of wastewater (CSAR). A basket was installed in the aeration tank of the reactor to submerge (POC). Two identical reactors were operated for each reactor of study which (A) was referred to as submerged media reactor while (B) was referred to as control. The studies were carried out at various influent flow rates between 5 and 30 L/d, and constant organic load rate OLR. Parameters such as NH4-N, and NO3-N, were monitored. Generally, Ammonia and Nitrate were highly removed. At all conditions of flow rate (5-30 L/d), the maximum and minimum NH4-N removal is 92% and 85%. The experimental data were validated through well-established mathematical bio-kinetic models such as the First order model, and Monod models. The kinetic coefficients R2 of the first-order model of the substrate removal rate were 0.97 for Ammonia. The steady-state data was fitted to both models obtained at various flowrate. Monod's kinetic model was appropriate for describing experimental results in terms of microbial growth parameters. The kinetic coefficients R2 (0.984) and Ks 303 for the removal of Ammonia, respectively. While µmax 10 g/L.d for Ammonia removal respectively.

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“…Applying mathematical modelling for wastewater treatment is a simple and convenient approach for predicting behaviours of substrate removal and optimizing experimental designs of bioreactors . The first‐order substrate removal model was widely used in various biological treatment reactors to simulate variations of substrate concentrations . However, some studies demonstrated that it was not still completely accurate to evaluate the performance of the attached growth bioreactors .…”

Section: Introductionmentioning

confidence: 99%

“…[27][28][29] The first-order substrate removal model was widely used in various biological treatment reactors to simulate variations of substrate concentrations. [30][31][32] However, some studies demonstrated that it was not still completely accurate to evaluate the performance of the attached growth bioreactors. [27,33] The biological contact oxidation (BCO) model based on the Monod model has been developed to accurately describe dynamics of biofilm reactors.…”

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confidence: 99%

Ammonium removal from coking wastewater in a pilot‐scale two‐stage aerobic biofilm system: Biokinetic analysis

Zhou

Zhang

2016

Can J Chem Eng

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A novel four‐stage pilot‐scale anaerobic/anoxic/oxic/oxic (A2/O2) biofilm process was successfully developed to treat coking wastewater with high ammonium loading. In this study, three different dynamical models including the first‐order substrate removal model, the Monod‐biological contact oxidation (Monod‐BCO) model, and the modified Stover‐Kincannon model were particularly applied to analyze kinetics of ammonium removal in a two‐step aerobic stage. For the O1 reactor, all models were appropriate for describing ammonium removal and the correlation coefficients of first‐order substrate removal model, BCO model, and modified Stover‐Kincannon model were 0.8974, 0.9210, and 0.9726, respectively. The model verification indicated that the modified Stover‐Kincannon model was slightly more applicable to predict ammonium removal in the O1 reactor. It was demonstrated that the maximum removal rate of ammonium was 0.208 kg/(m3 · d) by the Stover‐Kincannon model. For the O2 reactor, the modified Stover‐Kincannon model turned out to be the best fitting kinetic model for ammonium removal compared to the first‐order substrate removal model (R2 = 0.1556) and Monod‐BCO model (R2 = 0.5022). The maximum ammonium conversion rate (Um2‐O2) by the modified Stover‐Kincannon model was 1.180 kg/(m3 · d), while saturation rate constant k3‐O2 was 1.221 kg/(m3 · d). Furthermore, the determination coefficient between measured and predicted values obtained by the modified Stover‐Kincannon model was quite high (R2 = 0.9788) in the O2 process and a lower average residual square (6.60 × 10−6) was also obtained. The results of kinetic studies by the Stover‐Kincannon model can predict ammonia removal efficiency well in two‐step aerobic biofilm reactors of a coking wastewater treatment combined system.

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Substrate Removal Kinetics of Hydrogen Production in an Anaerobic Sludge Blanket Filter

Cited by 15 publications

References 33 publications

Modeling the kinetics and cost performance index of high rate up‐flow anaerobic, anoxic, oxic bioreactor for meat wastewater treatment

Modeling the kinetics and cost performance index of high rate up‐flow anaerobic, anoxic, oxic bioreactor for meat wastewater treatment

Kinetics study of nutrients removal from synthetic wastewater using media as submerged in continuous activated sludge system

Ammonium removal from coking wastewater in a pilot‐scale two‐stage aerobic biofilm system: Biokinetic analysis

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