Reference

Lingen WWTP

Energy Efficiency upgrade with thermal hydrolysis and phosphorus precipitation
 

03.02.2026 Published on 03.02.2026 1 min

General Data

Client: city of Lingen (EMS)

Completion: July 31, 2018

Contract value: 6 million €

Scope

  • Mechanical primary sludge thickening
  • Thermal sludge disintegration (LYSOTHERM®)
  • Phosphate precipitation and recovery from digested sludge (EloPhos®) with later change of operation to vacuum degassing with simultaneous phosphate precipitation in April 2019 (ELOVAC®-P)
  • Centrifuge for the dewatering of digested sludge
  • New CHPs with higher electrical efficiency

Technical Data

  • Design capacity WWTP 195,000 PE, Actual load ca. 100.000 PE
  • 1 module LYSOTHERM® with max. 15 tDS/d capacity
  • ELOVAC®-P with max. 10 m³/h capacity

Special Features

Funded project by the German Federal Ministry for Environment, Nature Conservation, Building and Nuclear Safety under “energy efficient wastewater treatment plants”. In 2018 at the project’s conclusion, the electrical power self-supply increased from 61% to 83% and total carbon footprint of the sludge treatment was reduced by a total of 400 tons/year, or by 17% prior to the implementation. Currently, the increased gas production leads to an increased production of electrical and thermal energy. Excess heat is utilized in the local heat network.

System & Technologies

  • LYSOTHERM®
  • ELOVAC®-P
  • EloPhos®

Project Video