Selective Hydrolysis of Sludge From Waste Water Treatment Plants

In this project new process configurations for anaerobic treatment of sludge is being developed with the aim of improving hydrolysis and methane production.

 
Biogas based power production via anaerobic digestion of sludge is expected to increase in the coming years. The technology is used at waste water treatment plants (WWTP) world wide but the efficiency during conventional processing is rather limited. Hydrolysis of the sludge is recognized as being an important bottle neck and improvement of this step is needed. In the present project new process configurations for anaerobic sludge treatment is being developed with the aim of improving the hydrolysis and thus the methane output and sludge reduction at WWTP´s. The experiments ranges from lab-scale development to full-scale demonstration and is carried out in collaboration between Risø DTU, the consultant company Eurotec Westcome and Esbjerg WWTP west.

Role:
Risø DTU is responsible for lab-scale optimization and analysis of sludge hydrolysis via development of various thermal pretreatment and post treatment methods. Success criteria of the methods are improved sludge solubilization and methane yield.

Participants:
Risø-DTU: BIO-REF programme (lab-scale development, amalysis), Eurotec Westcom (coordinator) and Esbjerg wastewater treatment plant west (full-scale demonstration).

Resources:
Selective hydrolysis of sludge from waste water treatment plants is supported by PSO-F&U, project number 2006-1-6815

Duration:
The project runs fromm 2007-2010.

Employees involved:
Henrik Bangsø Nielsen, Jens Ejbye Schmidt, Anne Belinda Thomsen and Anders Thygesen.

 

Page updated  by   08.10.2010


Henrik Bangsø Nielsen
Scientist
Biosystems (BIO)
Dir tel+45 46774126