Knowledge & Practice

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Practical knowledge on biogas, hydrolysis, straw digestion, biochar and funding – from more than 30 years of experience.

Biogas Practice

High-load digestion as the solution

The problem: floating layers form when the biology isn’t working optimally
Biology: this is the most important aspect of a biogas plant. Unfortunately, most operators are more technology-oriented.
The solution: high-load digestion with >50 kg oDM/m³d and optimal biological conditions (temperatures, trace elements, etc.) for the bacteria

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Biogas Practice

How to keep agitating even with 50% straw

Walter’s dream agitator for the batch hydrolysis
It agitates everything, floating layers at 20% – and even if it should ever stop, it starts up again. Because with a service factor of 2.7, even floating layers with 20% dry matter can be stirred up.
High peak power with low power consumption in normal operation
Seamless precision tube guarantees low-vibration operation and little wear.

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