Sludge to Resource Process

In Germany, sludge from municipal wastewater treatment is still partly  used as a fertilser in soil. This will change for plants of a size of 100.000 population equivalents (PE) in 2029 and for plants of a size of 50.000 PE in 2032, when sludge has to be incinerated. This is not only the case for Germany. Worldwide, tremendous incineration capacities for sewage sludge are required.

The StR-process does not only solve this issue, but



Our gas-mixed-reactor (GMR) compresses the biogas and leads it back to the center of the methane reactor. Consequently, good mixing is achieved, while the equipment is not affected, operating well within the sugar campaign.

This technology is well established in the sugar industry. In the last three years, we have equipped three sites with new gas mixed reactors and the additional equipment.

T E C H N I C A L  D A T A

  • Volume flows between 50 and 250 m³/h for each system.

  • Loading usually 9 to 12 kg COD/ (m³ x d)

  • Reactor in emaille or stainless steel.

  • Piping usually in 1.4571


  • Reliable operation.

  • Compact design.

  • Approved process.

  • Three references for BHU.

Environment, Security, Quality.

ISO 9001, ISO 14001, OHSAS 18001.

BHU Umwelttechnik GmbH | Einsteinstraße 57 | 71229 Leonberg | Germany |

Company of the Almawatech Group, Babenhausen