Water Treatment Plant Ventilation Equipment

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Wastewater Facilities Ventilation Challenges

Wastewater treatment and reclamation facilities provide the single largest pollution control effort on earth. Generating water that is clean enough to be returned to the streams, rivers and lakes from which it came. Because the water is being returned to the world and the people within it, it is paramount that the system cleaning the water be beyond reproach. To achieve this high level of reliability the system needs to be comprised of equipment that is equally reliable.

The process of wastewater treatment produces many byproducts requiring ventilation, such as heat, moisture, fumes and odors. Each of these byproducts can also include corrosives that have a harmful effect on people, structure and process. wastewater treatment plantFor this reason it is important to utilize the appropriate industrial ventilation equipment for the job.

Applying the right ventilation equipment in a wastewater treatment plant will ensure a reliable and long lasting process. From air blowers for wastewater treatment facilities to makeup air, we will provide equipment that checks all the boxes. Fans that are suitable for heavy duty, corrosive duty, and moisture laden applications. Our ventilation equipment will provide a reliable solution to maintain a quiet and clean environment for the site and surrounding community.

Chemical corrosion is a common challenge within a wastewater treatment plant or similar municipal water facility. The harsh chemicals supporting the non-stop operation of sludge-drying, odor controls, air strippers, aeration tanks and other essential equipment necessary for the wastewater reclamation process.

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Proper ventilation is required for the following purposes:

Materials Suitable for Wastewater Ventilation Equipment

Due to the corrosive contaminants being emitted, there are only few reliable materials that can be used wastewater treatment municipalities.

As mentioned before, the material makeup of the equipment will depend on the process being performed and the byproducts associated with it.

Fiberglass is the most common material used due to its durability, reliability and versatility. Available in centrifugal, radial and axial configurations it is truly the most versatile and reliable solution for wastewater applications. 

Types of Ventilation in Wastewater Treatment Plants

Proper ventilation in wastewater treatment and reclamation facilities includes both exhaust and make-up air. Based on the various steps in the process, this can come in many forms.

The most common ventilation solution is mechanical exhaust and mechanical intake, often referred to as push / pull. A mechanical ventilation system provides a controlled solution allowing air being introduced and exhausted to be directed per a plan that includes both a designated flow rate and direction.

When heat, gases and pollutants are produced faster than the flow rate of atmospheric or fresh air, then mechanical industrial ventilation equipment is essential.


Another common ventilation practice power / gravity solution. This consists of one part of the ventilation system being powered while the other is natural or gravity fed.

For example, within a space requiring the removal of process heat oftentimes a powered exhaust fan will be installed on the roof while a series of wall louvers are installed in the walls below. The negative pressure generated by the exhaust fan will pull the makeup air required through the louvers as they are the path of least resistance to balance the building pressure.

This method can also be performed conversely with the air being powered into the space and pushed out through a louver or gravity vent. This method is typically used for heat removal and not recommended for gas, pollutant or odor removal. 

Wastewater Treatment Blowers

Air blowers for wastewater treatment facilities are the most common type of mechanical air equipment used. Blower fans assist in treating sewage odors and other byproducts that emanate from the facility. These mechanical fans are also made of anti-corrosive materials, which help extend the life of the blower fan in the wastewater treatment plant.

Odor Control

Wastewater treatment plants must prioritize odor control, especially in urban and residential zones. These facilities produce hydrogen sulfide (H2S) gas which is highly toxic and has an equally offensive smell (sciencedirect.com source). This gas is typically the main cause of unpleasant odors in and around a wastewater reclamation facility.

Fortunately, there are many reliable options for facilities in which they can reduce or completely eradicate odor emissions safely and efficiently. The combination of a fume scrubber, blower fans, and the corresponding fiberglass exhaust fan will do the trick.

Zoning Regulations

wastewater treatment plant zoningWhen designing, replacing, upgrading or implementing anything in a water treatment plant there are regulations that must be adhered to. Whether those regulations are for odors, electric efficiency, or any of the many other regulatory compliance issues, choose a supplier with expertise with such regulations.


We are well aware that cities, states and municipalities are working on a budget. Our job is to ensure that your current and future budgets are maintained by providing reliable and long lasting equipment that requires little attention.

Our fiberglass ventilation equipment is backed with an industry leading guarantee giving you assurance and piece of mind.

Additionally, our equipment is made in the USA by reputable manufacturers meeting the “Buy American Act” (goa.gov). R. Williamson & Associates will provide you with the proper equipment for your facility that will meet your budget.

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R. Williamson & Associates has been in the ventilation business since 1931 and has a long history of providing ventilation equipment for wastewater treatment facilities and reclamation plants.

Should you have any questions or comments regarding an application please do not hesitate to reach out to one of our trusted experts.

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atad , reactor & biofiler exhaust

high volume & high pressure blowers

chemical & process fume cleaning
odor control

Fume scrubbers

Corrosive Duty Fans

PVC, plastic & fiberglass fans & blowers

Aeration and Pressure fans

Turbo Pressure blowers

Exhaust and Replacement equipment

fans & make-up air equipment


intake, process
& mist eliminator filters

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