Kinetic modelling and performance prediction of a hybrid anaerobic baffled reactor treating synthetic wastewater at mesophilic temperature

Ghaniyari-Benis, S.; Martı́n, A.; Borja, R.

doi:10.1016/j.procbio.2010.06.016

Cited by 29 publications

(14 citation statements)

References 30 publications

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“…It is thought that plastic net (Flexmatala packed biofilter) possessed a higher open area ratio and provided a good contact of substrates and microorganism under a faster feeding rate, resulting in higher hydrogen production performance, as reported previous researcher [36]. In this case, the filter part has function as barrier which has properties longer biomass retention time [47]. This show that carrier used for hydrogen production was suitable having higher specific surface area and provided better contact between substrate and microorganism.…”

Section: Restart Up Strategysupporting

confidence: 51%

Enhancing strategy on renewable hydrogen production in a continuous bioreactor with packed biofilter from sugary wastewater

Chu

Hastuti

Dewi

et al. 2016

International Journal of Hydrogen Energy

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Section: Restart Up Strategysupporting

confidence: 51%

Enhancing strategy on renewable hydrogen production in a continuous bioreactor with packed biofilter from sugary wastewater

Chu

Hastuti

Dewi

et al. 2016

International Journal of Hydrogen Energy

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“…The low yield occurred at θ of 11h can be attributed to the interference of the acclimatization period, which may have been insufficient to allow increased removal of organic matter under anaerobic condition. GHANIYARI-BENIS et al (2010) point out that kinetic studies are useful to reproduce the empirical behavior of the degradation process of organic matter and understand the metabolic pathways of biodegradation and simultaneously save time and money. However, the development of a model of degradation of organic matter is complex and presents difficulties in view of the large number of variables, including the hydraulic detention time, substrate concentration and configuration of the reactors that affect and interfere with the anaerobic system and aerobic degradation.…”

Section: Ln = -K Tmentioning

confidence: 99%

“…The authors stated that the first-order kinetic model showed the best fit to the experimental data and the apparent kinetics parameter resulted in 0.233h -1 with a correlation coefficient of 0.998. GHANIYARI-BENIS et al (2010) performed kinetics modeling of anaerobic degradation of a chambered hybrid anaerobic reactor, operated at mesophilic temperature in treating synthetic sewage. The results obtained for the kinetics constant (k) was 0.60 h -1 assuming a hydrodynamic behavior of reactors in series and steady state conditions.…”

Section: Organic Matter Remotion Kinectsmentioning

confidence: 99%

Performance of an anaerobic-aerobic reactor and kinetic study of organic matter removal of cattle slaughterhouse effluent

et al. 2014

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This paper sought to evaluate the behavior of an upflow Anaerobic-Aerobic Fixed Bed Reactor (AAFBR) in the treatment of cattle slaughterhouse effluent and determine apparent kinetic constants of the organic matter removal. The AAFBR was operated with no recirculation (Phase I) and with 50% of effluent recirculation (Phase II), with θ of 11h and 8h. In terms of pH, bicarbonate alkalinity and volatile acids, the results indicated the reactor ability to maintain favorable conditions for the biological processes involved in the organic matter removal in both operational phases. The average removal efficiencies of organic matter along the reactor height, expressed in terms of raw COD, were 49% and 68% in Phase I and 54% and 86% in Phase II for θ of 11h and 8h, respectively. The results of the filtered COD indicated removal efficiency of 52% and k = 0.0857h -1 to θ of 11h and 42% and k = 0.0880h -1 to θ of 8h in the Phase I. In Phase II, the removal efficiencies were 59% and 51% to θ of 11h and 8h, with k = 0.1238h -1 and k = 0.1075 h -1 , respectively. The first order kinetic model showed good adjustment and described adequately the kinetics of organic matter removal for θ of 11h, with r 2 equal to 0.9734 and 0.9591 to the Phases I and II, respectively. KEYWORDS: kinetic, cattle slaughterhouse, combined treatment system. DESEMPENHO DE UM REATOR ANAERÓBIO-AERÓBIO E ESTUDO CINÉTICO DE REMOÇÃO DE MATÉRIA ORGÂNICA DE EFLUENTE BOVINORESUMO: O objetivo deste estudo foi avaliar o desempenho de um Reator Anaeróbio-Aeróbio de Leito Fixo (RAALF) com escoamento ascendente, no tratamento de efluente bruto de matadouro bovino, e obter constantes cinéticas aparentes da remoção de matéria orgânica. O RAALF foi operado sem recirculação (Etapa I) e com 50% de recirculação do efluente (Etapa II), com θ de 11 h e 8 h. Em termos de pH, alcalinidade a bicarbonato e ácidos voláteis, os resultados indicaram que o RAALF apresentou capacidade em manter condições favoráveis para os processos biológicos envolvidos na remoção de matéria orgânica, em ambas as etapas operacionais. As eficiências médias de remoção de matéria orgânica ao longo da altura do reator, expressa em termos de DQO bruta, foram de 49% e 68% na Etapa I e de 54% e 86% na Etapa II, para θ de 11 h e 8 h, respectivamente. Os resultados de DQO filtrada indicaram eficiências de remoção de 52% e k = 0,0857 h -1 para θ de 11 h e 42% e k = 0,0880 h -1 para θ de 8 h na Etapa I. Na Etapa II, as eficiências de remoção foram 59% e 51% para θ de 11 h e 8 h, com k = 0,1238 h -1 e k = 0,1075 h -1 , respectivamente. O modelo cinético de primeira ordem indicou bom ajuste e descreveu adequadamente a cinética de remoção de matéria orgânica para θ de 11 h, com r 2 igual a 0,9734 e 0,9591 para as Etapas I e II, respectivamente.

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“…Arhoun et al argued that recovering valuable resource such as bioenergy (biogas) from such wastewater to supplement energy needs will be beneficial to humans and society at large [6,7]. Anaerobic digestion has severally been reported as a successful bioprocess treating various organic wastewaters and subsequently generating biogas [7][8][9][10][11][12]. However, the biological mechanism of anaerobic digestion is not well understood due to the complexity of the bacterial community structure and bioconversion [13].…”

Section: Introductionmentioning

confidence: 99%

Modelling Biogas Fermentation from Anaerobic Digestion: Potato Starch Processing Wastewater Treated Within an Up flow Anaerobic Sludge Blanket

Antwi¹,

Li²,

Shi³

et al. 2017

J Bioremediat Biodegrad

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IntroductionPotato is one of the most valuable food crop grown in many countries [1]. It has been reported that, a considerable proportion of the potato cultivated globally consumed through starch processing which subsequently generates tons of wastewater that goes to pollute water bodies [1][2][3]. Wastewater of raw potato processed into starch are classified as complex wastewater [4,5], and its concentration of chemical oxygen demand (COD), total suspended solid (TSS) and volatile suspended solid of (VSS) can yield concentrations of 50000, 9700 and 9500 mg/L, respectively [6]. Arhoun et al. argued that recovering valuable resource such as bioenergy (biogas) from such wastewater to supplement energy needs will be beneficial to humans and society at large [6,7]. Anaerobic digestion has severally been reported as a successful bioprocess treating various organic wastewaters and subsequently generating biogas [7][8][9][10][11][12]. However, the biological mechanism of anaerobic digestion is not well understood due to the complexity of the bacterial community structure and bioconversion [13]. Hu et al. asserted that process modeling is a good tool for predicting and describing the performance of biological processes [13]. Other reports also confirmed that process modeling based on previously acquired data is one technical route to enhancing the performance of anaerobic processes. These process models are often developed [14,15]. Nonetheless, modeling of anaerobic digestion is quite challenging and tough because performance of anaerobic systems is complex and varies considerably with influent characteristics and operational conditions [16].Some predictive models have been developed in the past decades for biogas estimation during anaerobic treatment processes. For instance, a regression analysis model for estimating biogas generated in a landfill leachate treatment process was developed by Akaya et al. AbstractHerein, a modeling approach to predict biogas yield within a mesophilic (35 ± 1°C) upflow anaerobic sludge blanket (UASB) reactor treating potato starch processing wastewater (PSPW) for pollutant removal was conducted. HRTs and seven anaerobic process-related parameters viz; chemical oxygen demand (COD), ammonium (NH 4 + ), alkalinity, total Kjeldahl Nitrogen, total phosphorus, volatile fatty acids (VFAs) and pH with average concentration of 4028.91, 110.09, 4944.67, 510.47, 45.20, 534.44 mg/L and 7.09, respectively, were used as input variables (x) to develop stochastic models for predicting biogas yield from the anaerobic digestion of PSPW. Based on the prediction accuracy of the models, it was established that, prediction of biogas yield from the UASB with the combination of COD, NH 4 + and HRT, or COD, NH 4 + , HRT and VFAs as input variables proved more efficient as opposed to HRT, alkalinity, total Kjeldahl Nitrogen, total phosphorus and pH. Highest coefficient of determination (R 2 ) observed was 97.29%, suggesting the efficiency of the models in making predictions. The developed models efficiencies co...

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Kinetic modelling and performance prediction of a hybrid anaerobic baffled reactor treating synthetic wastewater at mesophilic temperature

Cited by 29 publications

References 30 publications

Enhancing strategy on renewable hydrogen production in a continuous bioreactor with packed biofilter from sugary wastewater

Enhancing strategy on renewable hydrogen production in a continuous bioreactor with packed biofilter from sugary wastewater

Performance of an anaerobic-aerobic reactor and kinetic study of organic matter removal of cattle slaughterhouse effluent

Modelling Biogas Fermentation from Anaerobic Digestion: Potato Starch Processing Wastewater Treated Within an Up flow Anaerobic Sludge Blanket

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