primary-wastewaterPrimary Wastewater Treatment

The Salsnes Filter system is the only system you need for primary municipal wastewater treatment, as it can completely replace conventional primary treatment such as sedimentation tanks or clarifiers.  Using a rotating filtermesh, a Salsnes Filter system can remove >50% TSS and >20% BOD from raw wastewater.

A Salsnes Filter system requires only 1/10th the land and 30-60% the investment cost of conventional systems. More than that, sludge thickening and dewatering is integrated into this very compact and cost-effective system.

Enhancing Existing Primary Wastewater Systems

With our ever-growing population, many wastewater treatment facilities face the need to increase treatment capacity, but have limited or no space to install additional treatment equipment. A Salsnes Filter system is designed for situations such as this, using less than 10% the land of sedimentation tanks and clarifiers. By augmenting current primary systems with a Salsnes Filter system, wastewater treatment plants can increase treatment capacity using land they already have.

There is also the option to retrofit your sedimentation tank or clarifier into secondary treatment while installing a Salsnes Filter system alone for primary treatment. This can increase capacity by up to 50%.

Primary Wastewater Treatment for Biological Systems

A Salsnes Filter system can remove >20% BOD from raw wastewater to reduce the loadings or increase treatment capacity of downstream processes such as:

  • Oxidation ditches
  • Sequencing batch reactors
  • Biological aerated filters
  • Dissolved air flotation
  • Moving bed bio reactors
  • Membrane bio reactors

stormwaterCombined Sewer Overflow (CSO) and Stormwater Treatment

There is growing awareness about the adverse environmental effects of releasing untreated stormwater and CSO back into the environment.  This has prompted regulatory agencies to mandate facility upgrades for many municipalities.

The Salsnes Filter system is ideal for CSO and stormwater treatment because, unlike other technologies, it has consistent solids removal rates within a wide range of flows.