The Grundfos R&D project will focus on the industrial treatment of wastewater using a unique cake filter made from activated sludge.

The Grundfos cake filtration technology requires very little energy as it can operate under the low water pressure generated by gravity. The filtrate that the cake filtration produces can be safely discharged into the sea, while effluent polishing costs are halved. There is also potential to treat the filtrate and recycle it for irrigation or industrial use.

The Grundfos Water Innovation Centre in Singapore, headed by Dr Gao Xin, will lead this project with support from the Nanyang Technological University’s Nanyang Environment & Water Research Institute (NEWRI).

Established in 2012, the Grundfos Water Innovation Centre in Singapore is an extension of the Grundfos R&D Centre in Denmark.

Lars Enevoldsen, group vice president of Grundfos Global Research and Technology, looks forward to taking Grundfos’s research on cake filtration technology to its next level as a cost-effective solution for the treatment and re-use of wastewater.

“The cake filtration project relies strongly on precise and controlled pumping of water and sludge, and will offer a good study platform on the optimisation of cost and energy use in pumping operations. I’m confident we will set new research benchmarks in both Denmark and Singapore through this collaboration,” said Enevoldsen.