The research was presented at Pollutec 2016, an international exhibition for environmental equipment technologies and services, which took place in Lyon, France in December.
The Salsnes Primary Filtration Technology (SPF) makes use of rotating belt filters (RBF) with fine mesh sieves. Primary wastewater treatment with primary sedimentation basins was originally installed to remove organic material, however stricter regulations to remove nitrogen now require many plants to upgrade their volume capacity. An easy way to accomplish this is with rotating belt filter (RBF) technology. RBFs with fine mesh sieves can achieve higher bio-methane potential compared to sludge from conventional primary sedimentation basins. Bio-methane can be captured and used to generate electricity for use within the wastewater treatment plant or sold to other utilities.