Phosphorus recovery


Phosphorus recovery from sewage sludge will soon be compulsory in Switzerland.

The combination of thermal sludge hydrolysis and phosphate precipitation offers:

  • A higher gas yield in digestion process
  • An increased fertiliser production with a higher product purity
  • An increased dry matter content in the dewatered sludge combined with reduced polymer consumption
  • Avoiding crystallisation problems in the sludge and centrate area

We are happy to consult you in selecting the optimum process.