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.