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Blowers play a critical role in water and wastewater treatment by providing the controlled air and gas movement required in many treatment processes. From biological aeration and digestion to mixing, gas handling, grit removal, and filter backwash, blower systems help support the airflow needs of both industrial and municipal treatment facilities. Gardner Denver brings decades of positive displacement blower experience, a broad portfolio of blower technologies and package solutions, and a global network of application and service support to help customers address wastewater treatment challenges. 

Supporting Water and Wastewater Treatment Operations

Water and wastewater treatment facilities rely on controlled air and gas movement to support critical treatment processes throughout the plant. Blower systems are used in applications such as biological aeration, aerobic digestion, gas handling, basin mixing, filter backwash, and grit removal, helping support the airflow and process requirements necessary for treatment operations. This broad application coverage makes blower technology an important component of both industrial and municipal wastewater systems. 

Gardner Denver provides positive displacement blower technologies and packaged blower solutions used across a wide range of wastewater treatment applications. With solutions that support diverse operating requirements and treatment processes, Gardner Denver helps facilities evaluate blower technologies, packaged systems, and support resources that align with their operational needs. 

Whether you are researching a specific treatment application, comparing blower technologies, evaluating packaged solutions, or looking for guidance on blower selection, this page is designed to help you navigate to the information most relevant to your operation. Explore wastewater markets, applications, blower technologies, and supporting resources below to continue your evaluation. 

Wastewater

Wastewater Markets We Serve

Wastewater treatment requirements vary based on the source of the wastewater, treatment objectives, operating environment, and regulatory requirements. Gardner Denver supports both industrial and municipal wastewater facilities with blower technologies used across a broad range of treatment applications. 

Select the market that best aligns with your operation to explore application requirements, blower technologies, and supporting resources relevant to your wastewater treatment needs. 

 

Industrial Wastewater 

Industrial wastewater originates from manufacturing, processing, cleaning, cooling, and other industrial operations. Treatment approaches are often influenced by facility processes, wastewater characteristics, and discharge or reuse requirements. Explore wastewater applications, blower technologies, and resources tailored to industrial treatment environments. 

 

Municipal Wastewater 

Municipal wastewater systems collect and treat wastewater generated by homes, businesses, institutions, and public infrastructure. These facilities often operate a combination of aeration, digestion, mixing, filtration, and solids-handling processes that rely on controlled air and gas movement. Explore blower applications and resources developed for municipal treatment operations. 

Wastewater Applications

Many wastewater treatment processes rely on controlled air or gas movement to support treatment objectives. The following applications highlight common areas where blower systems are used within industrial and municipal wastewater facilities and help explain where airflow or gas movement supports the treatment process. 

Biological Aeration

Purpose of the Application 

Biological aeration supports aerobic treatment processes by introducing oxygen into wastewater, helping maintain the conditions required for biological treatment. 

Where Airflow is Involved 

Air is pumped through diffusers into treatment tanks, increasing dissolved oxygen levels within the wastewater. 

Why a Blower is Used 

Blowers provide the controlled airflow required to deliver oxygen throughout the aeration system and support treatment process requirements. 

Biological Areation

Aerobic Digestion

Purpose of the Application 

Aerobic digestion is used to oxidize and decompose organic material in the presence of oxygen, helping reduce mass, volume, and harmful microorganisms. 

Where Airflow is Involved 

Air is introduced into the digestion process to maintain aerobic conditions and support biological activity. 

Why a Blower is Used 

Blowers provide the airflow needed to support oxygen delivery during the aerobic digestion process. 

Digtestion Tanks

Digestion Gas Handling

Purpose of the Application 

Anaerobic digestion transforms organic material into gases, including methane-rich biogas that may be used as an energy source. 

Where Gas Movement is Involved 

Gas generated during digestion must be transported and handled for downstream use, treatment, or processing. 

Why a Blower is Used 

Positive displacement blower technologies are used to transport, compress, purify, separate, and convey biogas associated with digestion processes. 

Digesters Gas Domes

Filter and Media Backwash

Purpose of the Application 

Filter backwash systems clean filtration media by removing accumulated particles and contaminants from the filter bed. 

Where Airflow is Involved 

Air is used to expand and agitate the filter bed before clean backwash water is introduced to suspend and remove particles. 

Why a Blower is Used 

Positive displacement blowers provide the airflow required to expand the filter media and support the backwash cleaning process. 

IWWT Filtration System

Grit Removal

Purpose of the Application 

Grit removal systems help separate heavier particles, such as sand and grit, from the wastewater stream before downstream treatment processes. 

Where Airflow is Involved 

Air is introduced into the grit chamber to create a spiral flow pattern that supports grit separation. 

Why a Blower is Used 

Blowers provide the airflow necessary to create and maintain the conditions required for grit aeration systems. 

Grit Champer

Wastewater Blower Solutions

Wastewater treatment systems have different airflow requirements, operating ranges, pressure requirements, installation considerations, and operational objectives. Gardner Denver offers multiple positive displacement blower technologies and package configurations that support wastewater treatment applications. 

Straight Bi-Lobe Product Photos

Rotary Lobe Blowers

Rotary lobe blower technologies are used across a broad range of wastewater treatment applications, including aeration, digestion, grit removal, and filter backwash processes. Gardner Denver offers multiple rotary lobe configurations, including bi-lobe, straight tri-lobe, and twisted tri-lobe designs, providing options that support a variety of operating requirements and installation environments. These technologies are recognized for their versatility and widespread use across wastewater treatment operations. 

Why Consider Rotary Lobe Technology?

  • Used across multiple wastewater treatment applications including aeration, digestion, grit aeration, and filter backwash. 
  • Available in multiple positive displacement configurations to support varying operational requirements. 
  • Gardner Denver offers one of the broadest rotary lobe blower portfolios available for wastewater treatment applications. 
Explore Rotary Lobe Blowers
Helical Screw Blower Packages

Helical Screw Blower Packages

Gardner Denver helical screw technologies are designed to provide efficient operation for wastewater treatment applications and are available in packaged configurations that combine blower technology, controls, and supporting system components. These solutions offer advanced monitoring and control capabilities and are available for wastewater facilities with varying operational requirements. 

Why Consider Helical Screw Technology?

  • Designed for efficient operation in wastewater treatment environments. 
  • Available with integrated monitoring and control capabilities through packaged solutions. 
  • Offered in wastewater-focused package configurations that combine blower technology with supporting system components. 
Explore Helical Screw Packages
Pre-Engineered Blower Packages

Pre-Engineered Blower Packages

Gardner Denver pre-engineered blower packages integrate blower technology, motors, controls, and supporting components into standardized package configurations for wastewater treatment applications. These solutions are designed to support both industrial and municipal wastewater facilities through integrated system architecture and packaged installation approaches. 

When Does a Packaged Solution Make Sense?

  • When a project benefits from an integrated blower, motor, controls, and supporting components supplied as a complete system. 
  • When a facility prefers a standardized package architecture rather than sourcing and integrating components individually. 
  • When monitoring, controls, maintenance access, and overall package integration are important project considerations. 
Explore Blower Packages

Resources for Water and Wastewater Professionals

Explore additional resources to learn more about wastewater treatment applications, blower technologies, and selection considerations.

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Industrial Wastewater Solutions

Explore treatment considerations, blower applications, and industry-specific wastewater resources for manufacturing and industrial facilities. 

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Wastewater Blower Selection Guide

Review key considerations when evaluating blower technologies for wastewater applications. 

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Water and Wastewater Treatment Solutions

Explore additional Gardner Denver resources related to treatment applications and blower technologies. 

Why Gardner Denver for Wastewater Applications

Broad Wastewater Application Coverage

Gardner Denver blower technologies support a wide range of wastewater treatment applications, including biological aeration, aerobic digestion, digestion gas handling, grit aeration, and filter backwash, making them suitable for multiple stages of the treatment process.

Multiple Positive Displacement Technology Options

Wastewater facilities have different airflow, pressure, control, and operational requirements. Gardner Denver offers multiple positive displacement blower technologies, including bi-lobe, straight tri-lobe, twisted tri-lobe, and helical screw designs, providing solutions that support a variety of wastewater treatment applications. 

Wastewater-Focused Blower Packages

Gardner Denver offers pre-engineered blower package solutions that integrate blower technology, motors, controls, and supporting components into standardized configurations for wastewater treatment operations. Package options are available for both industrial and municipal wastewater facilities. 

Regional Distribution and Technical Support

Customers have access to Gardner Denver's authorized distributor network for local sales support, technical assistance, OEM replacement parts, service resources, and application guidance. Local distributors provide regional support and help facilities maintain blower performance throughout the equipment lifecycle. 

Frequently Asked Questions

Wastewater treatment uses physical, chemical, biological, or combined processes to manage contaminants before discharge, reuse, or further treatment. Treatment approaches vary depending on the wastewater source and treatment objectives. 

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Discuss Your Wastewater Application

Whether you are evaluating an industrial facility or a municipal treatment system, Gardner Denver can help you identify blower technologies and package options appropriate for your wastewater application.