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首页> 外文期刊>International Journal of Environment and Bioenergy >The Kinetics of Biogas Production in an Anaerobic Hybrid Reactor
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The Kinetics of Biogas Production in an Anaerobic Hybrid Reactor

机译：厌氧混合反应器中沼气产生的动力学

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This study investigates the continuous production of biogas using mango processing effluent in an anaerobic hybrid reactor (AHR) for four different hydraulic retention times (HRTs) (48, 36, 24 & 12 h), and different initial substrate concentrations (4000, 6000, 8000, 10000 and 12000 mg COD/l,) were studied. The COD removal efficiency of 79% was obtained at 12 h HRT and biogas production was 14.670 l/d. The performance of AHR is well retaining of the biomass concentration in the packing material. Therefore 24 h HRT was sufficient for continuous production of biogas using AHR. In this study the kinetics of AHR producing biogas was investigated using different substrate models such as first order, Grau second order, Stover-Kincannon and Monod model. Grau second order and Stover-Kincannon models with correlation coefficients of 0.9649 and 0.9688 respectively were found to be more suitable than the other applied models for predicting the performance of lab scale AHR reactor together with significant kinetic coefficients. The modified Stover-Kincannon and Vander Meer and Heertjes gas production models showed that the gas kinetic constants were more meaningful, and the regression coefficient was higher in the Vander Meer and Heertjes model than the modified Stover-Kincannon model. Therefore, the Vander Meer and Heertjes model could be used to predict the methane and total gas production in the AHR.
机译：这项研究调查了在四个不同的水力停留时间（HRT）（48、36、24和12 h）和不同的初始底物浓度（4000、6000，研究了8000、10000和12000 mg COD / l。在HRT 12 h时，COD去除效率达到79％，沼气产量为14.670 l / d。 AHR的性能很好地保持了包装材料中生物质的浓度。因此，24小时HRT足以使用AHR连续生产沼气。在这项研究中，使用不同的底物模型（例如一阶，Grau二阶，Stover-Kincannon和Monod模型）研究了产生AHR的沼气的动力学。发现相关系数分别为0.9649和0.9688的Grau二阶模型和Stover-Kincannon模型比其他应用模型更适用于预测实验室规模AHR反应堆的性能以及显着的动力学系数。修改后的Stover-Kincannon和Vander Meer和Heertjes产气模型表明，与修改后的Stover-Kincannon模型相比，Vander Meer和Heertjes模型的气体动力学常数更有意义，回归系数更高。因此，Vander Meer和Heertjes模型可用于预测AHR中的甲烷和总产气量。

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