Salsnes Filter System to be Installed at Ultramodern Climate and Environmental Park

Wastewater treatment plants are most commonly constructed and operated with the public unaware of the important work being done at these facilities. This status quo is likely to change in Hillerød, Denmark, where the Solrødgård Climate and Environmental Park is currently being constructed.

Public Space Merged with Public Utilities

The 51-hectare Park, commissioned by the Danish utility consortium Hillerød Forsyning is using special architecture and design to merge a public recreational space with a wastewater treatment plant, as well as a recycling station and energy production plants.

This ultramodern park will be an attraction for local residents, and an educational tool for schools with its on-site Climate and Environmental Centre. The grounds will also have a large wetland area that will collect rainwater, as well as attract a rich bird population among other wildlife and plants.


Solrødgård Wastewater Treatment Plant

The Wastewater Treatment Plant is being constructed so that visitors can view the treatment technologies at work. Six Salsnes Filters are being installed at the facility, to treat wastewater for Hillerød Municipality. 


SFK600 model

SFK600 Salsnes Filter

Primary Solids Separation and Sludge Thickening and Dewatering

The Salsnes Filter system will perform primary treatment, removing approximately 50% TSS from the wastewater, as well as thickening and dewatering sludge to approximately 6% total solids. This can be compared to conventional primary treatment which typically produces sludge with about 2% total solids. Having drier sludge means that no additional thickening processes are required before sludge can be further processed for use in biogas production.


Maximizing Biogas Production

Due to the speed of the filtration process, the fresh sludge taken from the filters ensures biogas production (and energy production) will be maximized. The design of the Salsnes Filter system  allows control over the amount of organic matter that is separated in the primary stage, and how much is left in the wastewater for secondary biological treatment.

Further Reading:

Cellvation Technology Wins Aquatech Innovation Award

At Aquatech Amsterdam, we had the pleasure of sharing a Stand with our partner from The Netherlands, CirTec, and the show was a great success! 

Our stand was packed with visitors coming to see Cellvation, CirTec’s cellulose recovery technology that won this year’s Innovation Award. They won in the Waste water treatment category AND won the Overall prize ahead of the other 4 category winners.

Ivar Solvi & Stefano Salvatore of Salsnes Filter and Harry Tuinier of CirTec

Sewage Sludge Becomes a Valuable Resource

Cellvation technology uses sewage sludge, which has commonly been thought of as waste (and a problem to dispose of) and has turned it into a valuable resource.

The technology recovers cellulose fibers (toilet paper) from wastewater which is further processed into pellets that can be used in the production of commercial products, such as asphalt, bioplastics and biocomposites.


The Salsnes Filter System’s Critical Role

The Salsnes Filter system plays a critical role in the technology, separating the cellulose fibers from incoming wastewater.










Aquatech Amsterdam

Aquatech Amsterdam took place at the RAI Exhibition and Convention Centre from October 31 – November 3, 2017. The event hosted over 21,000 attendees and 900 exhibitors from 139 countries.

Further Reading