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resource
recovery

The Resource Recovery theme of Wetsus directs towards the recovery of N and P from wastewater. In addition, the microbial fuel cell technology is further developed.

The winning of P from municipal wastewater and cheese water occurs via an electrochemical process. Depending on the residence time, it is possible to extract more than 90% of the P from the wastewater as calcium phosphate. The winning of N in the form of ammonia, converted to ammonium sulfate, occurs in an electrochemical process. The recovery of N is more than 80-90%.

For further development of the microbial fuel cell technology for the conversion of wastewater to electricity, a project runs on the activity of the bio-anode using intermittent current control. To up-scale the microbial fuel cell, the fluidized bed bio-anode is developed. This fluidized bed bio-anode enables up scaling of the microbial fuel cell to a level of m3 as the charging of the capacitive granules by the electro-active bacteria occurs electro less. Discharging takes place in a dedicated electrochemical cell. 

Team members

Coordination & management
Michel Saakes

Michel Saakes

Theme coordinator Blue energy, Resource recovery
Pieter Hack

Pieter Hack

Theme manager
Research staff
Philipp Kuntke

Philipp Kuntke

Scientific project manager
Renata D. van der Weijden

Renata D. van der Weijden

Senior advisor
Yang Lei

Yang Lei

Postdoctoral researcher
Casper Borsje

Casper Borsje

PhD Researcher
Steffen Georg

Steffen Georg

PhD Researcher
Mariana Rodrigues

Mariana Rodrigues

PhD Researcher
João Pereira

João Pereira

PhD Researcher

Research documents

Research partners