Nijhuis Saur Industries, Inc.
About
Nijhuis Saur Industries (NSI), operating under the Saur Group, is a multinational water and wastewater technology provider with over 7,000 reference installations across 140 countries. Headquartered in the Netherlands with regional centers spanning six continents, NSI integrates proprietary equipment, process engineering, and digital services for both industrial and municipal clients. Its industrial portfolio addresses food and beverage, pharmaceutical, pulp and paper, semiconductor, energy, and mining sectors, while municipal solutions cover drinking water treatment and urban wastewater management. Key proprietary technologies include the CellCap cellulose recovery system, CeraMac advanced membrane filtration, and a broad dissolved air flotation (DAF) range covering IPF-NPF and GDF units for solids, oil, and grease separation. Biological treatment capabilities span aerobic activated sludge and anaerobic digestion with biogas recovery. The SIX suspended ion exchange process removes natural organic matter from source water. Additional product lines encompass coagulation and flocculation systems, screening and filtration equipment, biogas desulfurization, digestate treatment, sludge thickening and dewatering, demineralized water production, and the Crescendo gas-liquid contact system. NSI also provides mobile water treatment from a fleet of 500+ rental assets, pump and blower optimization through its Riventa brand, and cloud-based digital monitoring. Technology center brands include Econvert, Unidro, PWNT, Byosis, Sodai, Flootech, Aqua-Chem, and CirTec.
Key Products
Stationary filter screen engineered for reliable removal of solid particles from industrial wastewater streams to protect downstream process equipment.
Rotating drum screen for highly efficient fine solid particle removal from industrial wastewater, providing continuous automatic self-cleaning operation.
Advanced dissolved air flotation units for efficient separation of suspended solids, emulsified oils, greases, and flocculated particles from industrial and municipal effluents.
High-performance dissolved air flotation system for industrial and municipal applications requiring enhanced flotation capacity and reliability.
Advanced suspended ion exchange process developed by PWNT to remove naturally occurring organic matter (NOM) from source water for drinking water treatment.
Biological treatment systems using anaerobic microorganisms to remove biodegradable organics from industrial wastewater without oxygen, generating biogas as a recoverable energy product.
Aerobic biological treatment using oxygen and microorganisms to remove COD and BOD from wastewater to meet final effluent discharge standards.
MF, UF, NF, and RO membrane systems for water reuse, resource recovery, micropollutant and PFAS removal, and environmental compliance in industrial and municipal applications.
Proprietary compact system combining evaporation, thickening, ammonia stripping, and cooling functions in a single integrated unit for nutrient and contaminant management.
Resource recovery technology for extracting and recovering cellulose fiber from wastewater streams, particularly in food and pulp and paper applications.
Treatment systems to remove hydrogen sulfide from anaerobic digester biogas to the quality, pressure, and humidity specifications required for safe energy utilization.
Advanced technologies for treating anaerobic digester effluent (digestate) to reduce volume, improve dewaterability, and lower disposal costs.
Comprehensive sludge thickening, dewatering, and management technologies for cost-effective solids handling at water and wastewater treatment plants.
High-performance deionization and membrane systems for producing demineralized water for industrial steam generation, heat exchangers, and process applications.
Chemical dosing and mixing equipment engineered to promote aggregation of fine particles and colloids to support downstream solid-liquid separation processes.
Strategic advisory services providing guidance on wastewater management strategies, sustainability targets, regulatory compliance, and treatment technology selection.
Energy efficiency analysis and operational optimization of pump systems in water and wastewater facilities to reduce energy consumption and extend equipment life.
Performance benchmarking and condition assessment of installed pumping and aeration blower equipment to identify efficiency losses and maintenance needs.
Cloud-based digital tools providing real-time visibility of water treatment process performance, equipment health, and energy consumption for data-driven optimization.
Rental and emergency deployment of mobile treatment units from a fleet of 500+ assets, providing temporary water treatment capacity for planned outages, emergencies, or project needs.
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