Pretreatment / Hydrolysis


Particularly aerobic sludge requires a long digestion time. With exposure to heat a better cell disruption and hence, an increased gas yield can be achieved. The digestion time is reduced at the same time.

Thermal hydrolysis Lysotherm®

This process offers a cost-efficient and reliable sludge hydrolysis also in smaller waste water treatment plants (population equivalent > 30.000). The biological availability of surplus sludge is increased at temperatures of 100 – 175 °C.

The advantages are:
- Increased gas yield
- Increased dry matter content in dewatered sludge
- Reduzierung der zu entsorgenden Schlammmenge

Thermal sludge pretreatment

Thanks to thermal sludge pretreatment at temperatures of 60 – 70 °C a partial cell disruption already takes place and this reduces the digesting time.

With sludge analysis we determine the optimal process for you.




We adopt processes according to your project requirements and achieve optimal solutions using selected products from proven suppliers.

For example:

  • thermischeschlammvorbehandlung
Thermal sludge pretreatment

  • thermischeschlammhydrolyse_3
Thermal sludge hydrolysis,

  • schlammwaermetauscher
Sludge heat exchanger
  • schlammhygienisierung
Sludge hygienisation

  • pumpen_schlammhygienisierung
Sludge hygienisation pumps

Our high quality requirements are reflected in the achieved customer satisfaction. Take advantage of our many years of experience.