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首页> 外文期刊>Ecological engineering: The Journal of Ecotechnology >Evaluation and kinetics of biogas yield from morning glory (Ipomoea aquatica) co-digested with water hyacinth (Eichhornia crassipes)
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Evaluation and kinetics of biogas yield from morning glory (Ipomoea aquatica) co-digested with water hyacinth (Eichhornia crassipes)

机译：早晨辉煌（Ipomoea Aquatica）的沼气产量的评估和动力学与水风信（Eichhornia Crassipes）共消化

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摘要

Morning glory (MG, Ipomoea aquatica) with water hyacinth (WH, Eichhornia crassipes) were co-digested for 17 weeks at five different MG:WH ratios of 100:0, 70:30, 50:50, 30:70 and 0:100 (w:w dry basis). Fixed quantity of cow dung slurry was added to each treatment as inoculum to seed the digesters. Biodegradation and maximum biogas yield models based on first-order kinetics were fitted to the experimental biogas yields to describe the cumulative and predict maximum biogas yields, respectively from each treatment. From the results, it was observed that MG was viable and prolific for biogas production. Although co-digestion did not have significant (p > 0.05) effect on biogas yield, MG:WH (50:50) recorded the highest yield (0.29 dm(3) kg(-1) vs fed day(-1)). However, co-digestion affected (p <= 0.05) total bacterial count. The biodegradation model described the observed biogas yields satisfactorily as indicated by the high R-2. Similarly, the high R-2 values and percentages of predicted maximum yield/observed maximum yield showed that the maximum biogas yield model predicted the maximum yields satisfactorily. Biogas yield from MG:WH (100:0) was the best described and predicted by the biodegradation and maximum yield models, respectively. (C) 2016 Elsevier B.V. All rights reserved.
机译：早上辉煌（Mg，Ipomoea Aquatica）与水葫芦（Eichhornia crassipes）在五种不同的mg中共消化了17周：Wh比率为100：0,70:30，50:50,30:70和0： 100（w：W干基）。将固定数量的牛粪浆料加入每种处理中作为种子种子的孤独液。基于一阶动力学的生物降解和最大沼气产量模型适用于实验性沼气产量，以分别从每种治疗中描述累积和预测最大沼气产量。从结果中，观察到Mg是可行的，沼气生产的多产。虽然共消化没有显着（p> 0.05）对沼气产量的影响，但Mg：WH（50:50）记录了最高产率（0.29 dm（3）kg（-1）vs喂养日（-1））。但是，共消化受影响（P <= 0.05）总细菌计数。生物降解模型描述了观察到的沼气产量，如高R-2所示。类似地，高R-2值和预测最大产量/观察到的最大收率的百分比表明，最大沼气产量模型预测最大产量令人满意。沼气产量来自Mg：WH（100：0）是通过生物降解和最大产量模型的最佳描述和预测。 （c）2016年Elsevier B.v.保留所有权利。

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