【摘要】 氢分压（PH₂）是厌氧消化中一项重要的状态参数。本研究进行基质淀粉的中温厌氧消化,观察不同状况下 PH₂变化。结果表明:1.具有不同优势类型产CH₄菌的反应器,对 PH₂变化的承受能力完全不同.2.由有机冲击负荷所造成的PH₂变化,其上升速度与基质类型有关。3.PH₂变化明显地受到有机负荷上升速率的影响。4.系统的自身缓冲能力也关系到 PH₂的变化。因此,本研究认为 PH₂作为厌氧消化有机负荷监控的唯一指标是不恰当的。更多还原

【Abstract】 The PH₂ is one of the impotant state parameters in anaerobic digestion.This study conducted a mesosphilic anaerobic digestion with starch as the substrate,observing the PH₂ change in different states.The result showed that（1）te reactors with various kinds of advantages fot mathanogenic bacterium were completely different in their bearing capacities to the PH₂ change,（2） the increasing speed of the PH₂ change caused by the organic shock load was in relation with the substrate varieties,（3）the PH₂ change was impacted apparently by the increasing speed of organic load,（4）the buffering capacity of the system was also relative with the change of PH₂ Therefore, we think that it is not justable totake PH₂ as the mere index for monitoring the organic load in anaerobic digestion.更多还原