Salsnes Filter
Salsnes Filter manufactures rotating belt filter systems that combine solids separation, sludge thickening, and dewatering in one compact unit for municipal and industrial wastewater treatment plants worldwide. It operates as a subsidiary of Trojan Technologies.
- Company typePrivate
- Founded1991
- HeadquartersNamsos, Norway
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What Salsnes Filter does
Salsnes Filter AS, founded in 1991 and headquartered in Namsos, Norway, manufactures rotating belt filter (RBF) systems for solids separation in municipal and industrial wastewater treatment. The company's core technology integrates three processes — solids separation, sludge thickening, and dewatering — into a single compact unit, marketed under the SFK/SF product family (SFK:600, SF:1000, SF:6000). The system removes on average more than 50% of Total Suspended Solids (TSS) and more than 20% of Biochemical Oxygen Demand (BOD), producing sludge at 20–30% dry matter versus roughly 2% from conventional primary treatment, and uses approximately 1/10th the land footprint of clarifier-based systems.
The business model is hardware sales of configured equipment, augmented by spare parts and associated equipment (polymer stations, etc.), sold both directly to large municipal and industrial accounts and through exclusive and regional distribution partners (FILTEC in Australia/New Zealand, Novus in Italy, BWA B.V. in the Netherlands, MAK Water in Australia, EPS in UK/Ireland). Salsnes participates in EU Horizon 2020 research consortia — notably SMART-Plant (25 partners, 10 countries) and INTCATCH (20 partners, 7 countries) — and co-developed the Cellvation cellulose-recovery line with CirTec, broadening its offering into resource-recovery applications (cellulose for PLA bioplastics, PHA recovery, biogas enhancement).
Salsnes Filter is a privately held subsidiary of Trojan Technologies, which itself sits within a network of water-treatment businesses including Aquafine, TrojanUV, Trojan Marinex, and VIQUA. The company has 11–50 employees, offices in Norway, Germany, and North America, and a documented installed base spanning at least 16 countries across Europe, North America, Australia/New Zealand, the Middle East, and Antarctica. Revenue is project-based and quote-driven rather than subscription-based, and pricing is not publicly disclosed.
Salsnes Filter firmographics
Firmographics- Name
- Salsnes Filter
- Legal name
- Salsnes Filter AS
- Website
- https://salsnes-filter.com
- Company type
- Private
- Founded year
- 1991
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Salsnes Filter manufactures rotating belt filter systems that combine solids separation, sludge thickening, and dewatering in one compact unit for municipal and industrial wastewater treatment plants worldwide. It operates as a subsidiary of Trojan Technologies.
- Ownership category
- akta.pro rank
Salsnes Filter industry classification
Industry- Product category
- Wastewater Treatment Equipment
- NAICS
- Sewage Treatment Facilities (221320)
- SIC
- Pumps & Pumping Equipment (3561)
- akta.pro primary industry
- Sludge Thickening & Dewatering (Centrifuge, Belt Press, Screw Press) (EUANAHAA)
- akta.pro secondary industries
- Industrial Sludge & Byproduct Management (BPALAHAG), Nutrient Recovery from Sludge (Struvite, Ammonia/Phosphorus Recovery) (EUANAHAD)
Keywords
Where Salsnes Filter is headquartered
LocationHeadquarters
- HQ city
- Namsos
- HQ country
- Norway
- HQ region
- Europe
Offices3 records
Markets served
Salsnes Filter business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Wastewater Treatment Equipment Sales: Sale of Salsnes Filter systems (SFK600, SFK1000, SF:1000 models) for municipal and industrial wastewater treatment applications. Systems are sold directly and through distribution partners for installation at wastewater treatment facilities worldwide.
- Spare Parts and Associated Equipment: Supply of spare parts, polymer stations, and associated equipment for installed Salsnes Filter systems. Distribution agreement with FILTEC provides customers direct access to spare parts and equipment.
Go-to-market motion2 records
Distribution channels6 records
Marketing channels5 records
Salsnes Filter product offering
Product offeringCore offering
Salsnes Filter manufactures and sells rotating belt filter (RBF) systems for municipal and industrial wastewater treatment. The SFK/SF series (models SFK:600, SF:1000, and SF:6000) performs solids separation, sludge thickening, and dewatering in a single compact unit, removing on average >50% TSS and >20% BOD and producing sludge at 20-30% dry matter weight. The company also supplies spare parts and associated equipment (e.g., polymer stations) through its distribution network, and contributes technology to resource recovery applications such as cellulose and PHA recovery.
Product overview
Salsnes Filter offers a unified product line of rotating belt filter systems for eco-efficient solids separation in municipal and industrial wastewater treatment. The product line consists of the SFK/SF series (models SFK:600, SF:1000, and SF:6000) — all sharing the same core rotating belt filter technology that combines solids separation, sludge thickening, and dewatering into one compact unit. The SF:6000 is the larger model suited for full-scale plant installations, while the SFK:600 and SF:1000 serve smaller to mid-scale applications. The systems are offered as standalone physical equipment units, configurable in modular arrays (e.g., eight units together) for capacity scaling, with distribution and service support through a global network of partners.
Differentiator
Problem solved
Functional benefit
Products and services
- SFK:600 Rotating Belt Filter A rotating belt filter model for primary wastewater treatment, solids separation, sludge thickening, and dewatering. Used in municipal applications including Beemster WWTP (Netherlands) and Solrødgård Climate and Environmental Park (Denmark), and in industrial settings.
- SF:1000 Rotating Belt Filter A rotating belt filter model with 90 micron filter mesh that performs solids separation and transports solids to an integrated sludge thickening stage. Installed at the Carbonera WRRF (Italy) as part of the SMART-Plant EU Horizon 2020 demonstration and at the Villa Bagatta INTCATCH demonstration site (Lake Garda, Italy), treating flows up to 50 m³/h.
- SF:6000 Rotating Belt Filter A larger rotating belt filter model referenced at the Tomasjord wastewater treatment plant (Norway), where eight SF:6000 units were installed instead of conventional clarifiers, using only 1,600 ft² (150 m²) of land versus the 21,530 ft² (2,000 m²) required for clarifiers. Designed for full-scale municipal installations and multi-unit configurations.
- Cellvation Cellulose Recovery Technology A cellulose recovery technology developed in partnership with CirTec that uses the Salsnes Filter system to separate cellulose fibers from wastewater (e.g., from toilet paper). Harvested cellulose is processed into pellets for commercial products including asphalt, bioplastics, and biocomposites. Won both the wastewater treatment category and the Overall prize at the Aquatech Innovation Award 2017.
- Spare Parts and Associated Equipment (including polymer stations) Supply of spare parts, polymer stations, and associated equipment for installed Salsnes Filter systems. Distribution agreement with FILTEC provides customers direct access to spare parts and equipment for the Australia/New Zealand market.
Quantifiable outcome
- Uses 1/10th the land of conventional primary treatment systems
- +6 more outcomes
Companies that use Salsnes Filter
Customer profileNamed customers10 records
Segments2 records
Ideal customer profiles3 records
Salsnes Filter technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Salsnes Filter partnerships and signals
Strategic signalPartnerships
Eleven partnerships are on record, tiered core, flagship and minor.
- FILTECcoreExclusive distribution agreement for Australia and New Zealand. FILTEC provides customers with direct access to Salsnes advanced dewatering technology, spare parts, and associated equipment. Partnership enhances integration processes and enables FILTEC to offer tailored reuse solutions for municipal and industrial customers.
- NovuscoreLong-standing Trojan Technologies partner in Italy since 2006. Collaboration for exhibiting at Ecomondo events and serving Italian market for primary wastewater treatment solutions.
- CirTecflagshipPartnership for Cellvation technology - cellulose recovery from sewage. CirTecs Cellvation technology won Aquatech Innovation Award (Overall prize and wastewater category) in 2017. Salsnes Filter plays critical role by separating cellulose fibers from wastewater.
- Trojan TechnologiesflagshipParent company and part of Trojan Technologies network including Aquafine, VIQUA, Trojan Marinex, and TrojanUV. Products manufactured and/or sold may be protected by Trojan Technologies patents. Companies exhibit together at trade shows.
- Biowater TechnologyminorCollaboration on Saulekilen Sewage Plant project (Norway) combining Salsnes Filter system with biofilters to nearly double plant capacity from 45,000 to 80,000 p.e.
- EnviDanminorDanish engineering company collaboration on Egaa WWTP project for Aarhus Water. EnviDan provides innovative Annamox anaerobic biological treatment design while Salsnes provides primary treatment system.
- BWA B.V.minorPartner in the Netherlands for Beemster WWTP installation. Built in close collaboration for cellulose recovery project.
- EPS (UK/Ireland Partner)minorUK/Ireland partner for Rothera Research Station project in Antarctica. Partnered on installation at British Antarctic Survey facility.
- MAK WaterminorAustralian partner for brewery wastewater treatment projects. Completed turnkey upgrades of wastewater treatment plants in Victoria and NSW including Salsnes fine screen filters, pH correction systems, installation, commissioning and operator training.
- SMART-Plant ConsortiumflagshipEU Horizon 2020 research initiative with 25 partners in 10 countries. Salsnes Filter provides technology for resource recovery demonstration systems at WRRFs in Netherlands, UK, Spain, Italy, Greece, and Israel.
- INTCATCH ConsortiumminorEU Horizon 2020 program led by Brunel University with 20 partners across 7 countries. Salsnes Filter rotating belt filter combined with TrojanUV disinfection for CSO treatment demonstration at Lake Garda, Italy.
Scale indicators4 records
Recent moves7 records
Expansion highlights6 records
Salsnes Filter competitors and assessment
Company assessmentDirect peers
- Huber SE: German-headquartered manufacturer of wastewater and sludge treatment equipment, including screening, thickening, and dewatering solutions. Directly comparable to Salsnes as a mechanical-equipment specialist serving municipal WWTPs across similar primary-treatment and resource-recovery applications.
- Parkson Corporation: US-based provider of water and wastewater treatment equipment including screening, filtration, and biological treatment systems. Targets the same municipal and industrial primary-treatment market as Salsnes, particularly across North America.
- Aqua-Aerobic Systems: US-headquartered manufacturer of wastewater treatment equipment including cloth media filtration, aeration, and biological processes. Targets municipal and industrial customers with overlapping primary and tertiary treatment applications.
- WesTech Engineering: Provider of municipal and industrial water and wastewater treatment equipment including clarification, filtration, and sludge handling. Competitor in the primary solids separation and thickening niche.
- Andritz Separation: Global separation technology provider offering centrifuges, screens, and thickening/dewatering equipment for municipal and industrial wastewater. Overlaps with Salsnes in solids separation and sludge dewatering, though at substantially larger scale and broader product portfolio.
Broad incumbents
- Xylem (Sanitaire / Wedeco): Global water technology major whose Sanitaire, Wedeco, and Flygt brands supply aeration, disinfection, and biological treatment systems to municipal WWTPs. Competes in the broader wastewater treatment train and frequently partners with or substitutes for Salsnes-class primary treatment equipment.
- Evoqua Water Technologies: Major North American water treatment company (now part of Xylem) supplying filtration, disinfection, and biological treatment systems. Overlaps with Salsnes in municipal WWTP applications from a broader portfolio perspective.
- Alfa Laval: Large industrial-equipment conglomerate with a wastewater and sludge treatment separation portfolio including decanter centrifuges and drum thickeners. Competes with Salsnes in municipal dewatering applications but addresses a much broader industrial base.
- Veolia Water Technologies: Global water and wastewater solutions provider offering biological, membrane, and sludge treatment systems. Competes as an integrated supplier for municipal WWTP upgrades, often bundling primary treatment with downstream processes.
Emerging players
- CirTec: Dutch partner developing the Cellvation cellulose-recovery technology that uses the Salsnes Filter as the front-end separation step. A symbiotic emerging player in the wastewater resource-recovery space rather than a direct equipment competitor.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Salsnes Filter social profiles
Digital presenceSalsnes Filter financial estimates
Financial estimateRevenue estimate
Valuation estimate
Salsnes Filter leadership team
Management profileNumber of profiles
Profiles6 records
Salsnes Filter funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Salsnes Filter M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Salsnes Filter
What does Salsnes Filter do?
Salsnes Filter manufactures and sells rotating belt filter (RBF) systems for municipal and industrial wastewater treatment. The SFK/SF series (models SFK:600, SF:1000, and SF:6000) performs solids separation, sludge thickening, and dewatering in a single compact unit, removing on average >50% TSS and >20% BOD and producing sludge at 20-30% dry matter weight. The company also supplies spare parts and associated equipment (e.g., polymer stations) through its distribution network, and contributes technology to resource recovery applications such as cellulose and PHA recovery.
Is Salsnes Filter a public or private company?
Salsnes Filter is a private company. It is classified as corporate owned and is currently operating.
When was Salsnes Filter founded?
Salsnes Filter was founded in 1991. It employs 11 to 50 people.
Where is Salsnes Filter based?
Salsnes Filter is headquartered in Namsos, Norway, in the Europe region.
How does Salsnes Filter make money?
Two revenue lines are on record. Wastewater Treatment Equipment Sales are the primary driver. The others are spare Parts and Associated Equipment.
Who are Salsnes Filter's main competitors?
Direct peers on record are Huber SE, Parkson Corporation, Aqua-Aerobic Systems, WesTech Engineering and Andritz Separation. Broad incumbents are Xylem (Sanitaire / Wedeco), Evoqua Water Technologies, Alfa Laval and Veolia Water Technologies. CirTec is listed as an emerging player.
Does Salsnes Filter have an API?
No public API is recorded for Salsnes Filter.
What industry is Salsnes Filter in?
Salsnes Filter's product category is Wastewater Treatment Equipment. Its primary akta.pro industry code is EUANAHAA, Sludge Thickening & Dewatering (Centrifuge, Belt Press, Screw Press), with a secondary code of BPALAHAG, Industrial Sludge & Byproduct Management. Its NAICS code is 221320 and its SIC code is 3561.