This work studied the mixing processes in the full-scale research biogas plant of the University of Hohenheim by applying a biodegradable tracer. Two different mixing setups were used to gain a deeper insight into the mixing processes in a continuous stirred tank reactor (CSTR) equipped with mechanical agitators. For this study, a submersible motor mixer and a propeller incline shaft agitator were used to investigate the importance of propeller correspondence.

The mixing behaviour of the two variants was shown to differ greatly. By using two mixers simultaneously, mixing times and energy consumption could be strongly reduced (up to 30 times). Thus, both electricity demand and attrition of the stirrers can be lowered.

这项工作通过应用可生物降解的示踪剂，在霍恩海姆大学的大型研究型沼气厂中研究了混合过程。使用两种不同的混合设置可更深入地了解配备机械搅拌器的连续搅拌釜反应器（CSTR）中的混合过程。对于本研究，使用潜水式电机搅拌器和螺旋桨斜轴搅拌器来研究螺旋桨对应的重要性。

两种变体的混合行为显示出很大的差异。通过同时使用两个混合器，可以大大减少混合时间和能耗（最多30倍）。因此，可以降低电力需求和搅拌器的损耗。