Temperature Effects in Anaerobic Digestion Modeling
Temperature Effects in Anaerobic Digestion Modeling
复制标题
厌氧消化建模中的温度影响
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
R. Bakke
中科院分区：
文献类型：
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作者：
W. Bergland;C. Dinamarca;R. Bakke
在厌氧消化模型1（ADM 1）中，考虑了温度对颗粒分解、水解和底物吸收等生化过程动力学系数的影响。根据在220升AD污泥床反应器中处理牛粪4个月的不同负荷和温度（25、30和35 °C）的中试实验数据进行评估。对每个生物化学反应实施单独的温度效应对沼气生产和中间产物都是最适合的。模拟的整体可溶性和颗粒有机碳去除，pH值和乙酸接近测量值，而丙酸被低估。温度对污泥床AD中的稳态生物气生产具有中等影响（在30 - 35 °C下每度1.6%，在25 - 30 °C下每度3.4%），这意味着在某些情况下净能量增益可以在T < 35 °C时达到峰值。
Temperature effects on kinetic coefficients for the biochemical processes particle disintegration, hydrolysis and substrate uptake reactions were included in the anaerobic digestion model 1 (ADM1). It was evaluated on data from a pilot experiments in a 220 liter AD sludge bed reactor treating diary manure for 4 months of varying loads and temperatures; 25, 30 and 35 °C. Implementing individual temperature effects for each biochemical reaction gave the best fit for both biogas production and intermediate products. Simulated overall soluble and particulate organic carbon removal, pH and acetate are close to measured values while propionate is underestimated. Temperature has a moderate influence on steady state biogas production in sludge bed AD (1.6 % per degree at 30 – 35 °C and 3.4 % per degree at 25 – 30 °C), implying the net energy gain can peak at T < 35 °C in some cases.