CalPrex works with high concentrations of soluble phosphorus and is a viable solution for utilities seeking to mitigate operations and maintenance issues related to struvite scaling and poor sludge dewaterability.
The end recovered product, brushite, is a fertilizer comparable to leading phosphate fertilizers on the market today.
This high-value solution is for facilities needing phosphorus removal and recovery:
CalPrex reactor sits between the fermentation tank and gas phase digesters.Fermentation for 12-36 hours prior to the anaerobic digester provides a low oxygen environment
Fermented sludge is dewatered
Centrate is sent to the CalPrex reactor
Contact Centrisys/CNP for pilot testing capabilities.