Anaerobic digestion of sludge is considered to be one of the most appropriate technologies for energy production via conversion of organic matter into methane containing biogas. Biogas produced by anaerobic digestion of municipal wastewater sludge can be utilized as fuel to offset heat and electricity consumption of wastewater treatment facilities. Modeling can be used effectively to evaluate the impact of different process and operation variables on the performance of the treatment processes including complex ones such as anaerobic digestion. Therefore, the Anaerobic Digestion Model No. 1 (ADM1) was applied in order to evaluate the performance of a full-scale anaerobic sludge digester in this study. With the calibration of the most sensitive parameters used in the ADM1, model outputs corresponded well with the measured data obtained from the operation of the full-scale digester. The model was validated with the data acquired from the same anaerobic digester at a different operation period (360 days) and simulation results successfully predicted the digester performance. The overall results of this study demonstrated that the ADM1 can be used as a very useful tool to simulate the digestion of mixed sludge generated from full-scale wastewater treatment plants under mesophilic conditions.

中文翻译：

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1号厌氧消化模型（ADM1），用于市政污水处理厂中大型污泥消化池性能的数学建模。

通过将有机物转化为含甲烷的沼气，污泥的厌氧消化被认为是最合适的能源生产技术之一。厌氧消化市政废水污泥产生的沼气可以用作燃料，以抵消废水处理设施的热量和电力消耗。建模可以有效地用于评估不同过程和操作变量对处理过程（包括复杂过程，如厌氧消化）性能的影响。因此，为了评估本研究中的全规模厌氧污泥消化池的性能，应用了1号厌氧消化模型（ADM1）。通过校准ADM1中使用的最敏感参数，模型输出与从全尺寸蒸煮器运行获得的测量数据非常吻合。使用同一厌氧消化池在不同的运行时间（360天）中获得的数据对模型进行了验证，仿真结果成功地预测了消化池的性能。这项研究的总体结果表明，ADM1可以用作模拟中温条件下全规模废水处理厂产生的混合污泥消化的非常有用的工具。