High Operational Reliability, Energy Efficiency, and Flexibility Across Wastewater Treatment

The wastewater industry faces a wide range of challenges, from improving efficiency to reducing long-term operating costs.

NORD DRIVESYSTEMS understands these requirements and addresses them with a broad product portfolio designed for the many different applications within wastewater treatment.

Drive Solutions for Wastewater Treatment

NORD DRIVESYSTEMS designs, engineers, and manufactures scalable drive solutions for all areas of wastewater treatment. Our systems are efficient, reliable, and configured for specific application requirements.

NORD motors meet the latest international energy efficiency standards and help reduce CO₂ emissions. Service-friendly and maintenance-friendly designs help minimize downtime and support high system availability. NORD gear units are robust, operate quietly, and deliver a long service life.

NORD drive solutions have proven their reliability and cost-effectiveness in wastewater applications worldwide.

High Performance in Continuous Operation of Aeration Systems

Surface and brush aerators are key processes in wastewater treatment, providing oxygen in clarifiers and tanks. This oxygen supports microorganisms in biological treatment processes that break down organic matter and pollutants.

NORD drive systems support continuous aeration operation with high efficiency and low maintenance requirements. Energy-efficient components help reduce operating costs and improve sustainability. Compact gear unit designs and optimized sealing systems support long service life.

Configuration options for aerator applications:

MAXXDRIVE or parallel shaft gear unit
High-efficiency electric motors meeting current international standards
NEMA/IEC adapter
Vertical and horizontal alignment options
Advanced sealing system
Modular flange and bearing solutions
High radial and axial load capacity
Pressure lubrication systems

True Drop-In Replacement for Brush Areators

NORD offers robust and reliable drive systems for the wastewater and water treatment industries. These scalable, highly configurable drives can be precisely matched to the requirements of aerators, pumps, clarifiers, screens, screw systems, and more.

Read About MAXXDRIVE® in Brush Areators

Reliable Solutions for Efficient Pump Applications

Pumps are essential for moving wastewater, sludge, and treated liquids between process stages. This places varying demands on drive systems depending on the application.

NORD drive solutions support efficient pump operation, help prevent backflow, and ensure stable system performance. Energy-efficient gear units, motors, and variable frequency drives support low operating costs and high reliability. Corrosion-resistant surface protection and advanced sealing systems help ensure dependable operation in harsh environments.

Configuration options for pump applications:

Helical worm gear units
High-efficiency electric motors meeting current international standards
NEMA/IEC adapter
Advanced sealing system
Wide range of low gear ratios possible

Effective Filtration in Clarifiers

Clarification is a critical stage in wastewater treatment, where solids and contaminants are removed to improve water quality and meet environmental standards. Skimmer systems support this process by removing additional surface impurities.

NORD drive systems support reliable clarifier and skimmer operation with low maintenance requirements and precise control options. Energy-efficient motors and durable gear units help ensure stable performance and long service life.

Configuration options for skimmer applications:

Bevel or parallel shaft gear units
High-efficiency electric motors meeting current international standards
NEMA/IEC adapter
Advanced sealing system

Robust Drive Technology for Sludge Thickening

Sludge thickening reduces water content and increases solids concentration, placing high demands on drive systems due to load, wear, and corrosive conditions.

NORD drive solutions combine robust gear units with variable frequency drive technology to support controlled mixing and efficient process operation. Adjustable speed control helps optimize process performance, while reinforced designs support long service life and reduced maintenance requirements.

Configuration options for agitating and mixing applications:

MAXXDRIVE or parallel shaft gear units
High-efficiency electric motors meeting current international standards
NEMA/IEC adapter
Vertical and horizontal alignment options
Advanced sealing system
Modular flange and bearing solutions
High radial and axial load capacity

Automation of Mechanical Cleaning Screens

Screening is the first mechanical step in wastewater treatment and has a major impact on overall plant efficiency. Automated screen systems help improve process performance and reduce manual effort.

NORD drive systems support reliable screen operation with efficient control, compact design, and durable construction. Motor-mounted variable frequency drives enable precise operation and improved process stability. High-quality sealing systems and robust gear unit designs support long service life and reduced maintenance requirements.

Configuration options for screen applications:

MAXXDRIVE or parallel shaft gear units
High-efficiency electric motors meeting current international standards
NEMA/IEC adapters
Vertical and horizontal alignment options
Advanced sealing systems
Modular flange and bearing solutions
High radial and axial load capacity
SAFOMI adapter

Efficient Drive Systems for Screw Pumps

Pumping heavily contaminated liquids, which often contain solid particles, requires powerful drive systems.

Screw pumps are used to transport heavily contaminated liquids containing solid particles, requiring high torque and reliable drive systems.

NORD gear units are designed to handle these demanding conditions with robust construction, advanced sealing systems, and corrosion-resistant protection options. Flexible mounting solutions allow adaptation to different installation requirements and space constraints.

Configuration options for screw pump applications:

Helical gear units
High-efficiency electric motors meeting current international standards
NEMA/IEC adapter
Advanced sealing systems
Wide range of low gear ratios

Drive Technology for Wastewater Systems

NORD drive solutions are designed to support energy-efficient operation and help reduce CO₂ emissions. Variable frequency drives improve process control and support optimized motor performance.

Reliability is a key requirement in wastewater treatment. NORD systems are designed with precisely matched components to support continuous, stable operation in demanding environments.

UNICASE™ Helical In-Line Gearmotor

Sizes: 11
Power: 0.12 - 160 kW
Torque: 10 - 26,000 Nm
Gear ratio: 1.35 - 14,340.31:1
Foot or flange-mounted design
Long service life, low maintenance
Optimum sealing
Block housing

To the product

UNICASE™ Parallel Shaft Gearmotor

Sizes: 15
Power: 0.12 - 200 kW
Torque: 110 - 100,000 Nm
Gear ratio: 4.03 - 15,685.03:1
Foot, flange or slip-on housing
Hollow or solid shaft
Compact design
Block housing

To the product

UNICASE™ helical bevel gearmotor

Sizes: 11
Power: 0.12 - 200 kW
Torque: 180 - 50,000 Nm
Gear ratio: 8.04 - 13,432.68:1
Foot, flange or slip-on housing
Hollow or solid shaft
Block housing

To the product

MAXXDRIVE® XC Right-Angle Gear Units

Sizes: 11
Power: 1.5 - 2,150 kW
Torque: 15,000 - 260,000 Nm
3- and 4-stage
Heavy-duty, precision-manufactured one-piece housings
Modular & flexible design for optimum adaptation to your application
Low running noise

To the product

MAXXDRIVE® XC Parallel Gear Units

Sizes: 11
Power: 1.5 - 6,000 kW
Torque: 15,000 - 282,000 Nm
Gear ratio: 5.54 - 30,000:1
Axle-parallel and right-angled gearbox
Highest axle accuracy
Long service life, low maintenance
Block housing

To the product

MAXXDRIVE® XJ Right-Angle Gear Units

Sizes: 9
Power: 5.5 - 1,275 kW
Torque: 15,000 - 107,000 Nm
Gear ratio: 12.5 – 100:1
3-stage
Long service life
“J” arrangement of the shafts
Ideal for traveling drives

To the product

NORDAC BASE Variable Frequency Drive - SK 180E

Power range: 0.33 – 3 HP (0.25 – 2.2 kW)
Single-phase 110 - 120 V, 1/3-phase 200 - 240 V, 3-phase 380 - 500 V
Protection class: IP55, IP66
ATEX zone 22 3D

To the product

NORDAC FLEX Variable Frequency Drive - SK 200E

Sizes: 4
Voltage: 1~ 110 - 120 V, 1~ 200 - 240 V, 3 ~ 200 - 240 V, 3 ~ 380 - 500 V
Power: 0.25 - 22 kW
Energy saving function
Integrated POSICON positioning control
Integrated PLC

To the product

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Wastewater Treatment Plant in Newport, Oregon

Robust, efficient, inexpensive, reliable and worldwide availability - these are the advantages of NORD drives for the wastewater industry. Andrew Grant extensively tested the properties of NORD drives at the Vance Avery Wastewater Treatment Plant in South Beach, Oregon, before using them.

To the reference

It was a proof of concept. We like to try before we buy and seeing that there’s no bypass for the aeration tank, I needed to make sure they would work as promised. As it turned out, we tested those units for two years and were quite happy with their performance. I’m quite pleased with the outcome, and glad that NORD and Motion Industries were able to provide us with such a robust solution. It’s been a great project.

Driven by Your Requirements

NORD DRIVESYSTEMS has many years of experience in the wastewater and freshwater industry. We understand your requirements and provide application-specific support. From drive design and corrosion protection to automation and digitalization, we are your partner throughout the process.

Together, we configure the right solution using the NORD modular drive system. With subsidiaries in 36 countries, NORD is also your local partner for global projects.