Towers

Custom Aluminum De-gassing Tower, 1200 GPM, Dworshak National Fish Hatchery

"The customer service received from Aquatic Enterprises was excellent. They were extremely helpful in converting our requirements to degas hatchery well water, from ideas to hardware and performance characteristics.The job was given to Aquatic Enterprises based on their superior level of knowledge on the topic, innovative design recommendations, and quality and quantity of communication over the phone and by email. The product we received was custom designed and built in their shop, and we are very satisfied with the quality of construction. I would recommend them highly based on our experience."

– Chris Westcott
Fish Hatchery Technologist, Fleming College / School of Environmental and Natural Resource Sciences
Bio-Towers
 Aquatic Enterprises fixed film biological filter towers are a simple, cost effective alternative to other types of moving media filters. These trickle type filtration towers continuously oxygenate the water as it passes down the media. An added benefit is the carbon dioxide removal provided by a counter current airflow. Our smaller units (up to 24 cu. Ft of media) are made with durable corrosion resistant ABS plastic, and our larger units are gel-coated fiberglass. All our towers are fitted with an air inlet port located just below the media. Both the de-gassing columns and trickle towers can come complete with a blower pre-installed.

Our towers are uniquely designed to provide a positive air flow through the media, counter to the current of the water, insuring 100% of the air introduced to the tower exits through the outlet port (located on the top of the unit).

All our towers incorporate a water inlet port union, which manifolds to an internal, maintenance-free nozzle(s). We offer three different types of structured media, depending on your application. Our standard media, for biological filtration offers 119 sq. ft./ cu. Ft. We also offer a higher density media, where incoming water is filtered for solids removal. This media has 132 sq. ft/ cu ft. surface area, with a biomass area of up to 300 sq. ft/cu. Ft. Our units designed with an emphasis of CO2 removal, utilize a media with 69 sq. ft. /cu ft. of effective surface area.


The media we incorporate in these towers is of a cross flow design, increasing contact time to water and air. We can offer these towers with a substrate support plate for loose media applications.

Bio-Tower Specifications


We offer a wide variety of loose media for a number of differing applications.

  • Non-corrosive materials
  • Simple design
  • Maintenance free nozzles
  • Counter current technology
  • Cross flow media
  • Quick disconnect ports
  • Atomizing zone above media
  • Custom sizing available
Aquatic Enterprises de-gassing towers and biological filter towers are both available in non-insulated ABS, insulated PVC, and fiberglass materials. All are non-corrosive.


Degassing Towers

Aquatic Enterprises CO2 striping towers are simple and cost effective units engineered to provide high levels of stripping. Our smaller units (up to 24 cu. Ft of media) are made with durable corrosion resistant ABS plastic and have a square (or rectangular) footprint.  The square footprint offers 20% greater volume than a footprint of an equally sized cylindrical unit.  Our larger units are gel-coated fiberglass, are cylindrical for added strength and are designed and manufactured to ASTM standards. 

All our towers are fitted with an air inlet port located just below the media.  Both the de-gassing columns and trickle towers can come complete with a blower mount pre-installed.

Our towers are uniquely designed to provide a positive air flow through the media counter to the current of the water, insuring 100% of the air introduced to the tower exits through the outlet port (located on the top of the unit).  The outlet port is a standard PVC union and can be fitted with a drift eliminator or plumbed to vent elsewhere.

All our towers incorporate a water inlet port union, which manifolds to an internal, maintenance-free nozzle(s).  The nozzles are designed specifically for Counter Flow applications.

Aquatic Enterprises CO2 stripping towers come complete with large void space structured media for effective CO2 removal.  The media has 69 sq. ft. /cu ft. of effective surface area and incorporates a cross flow design, increasing contact time to water and air.

We can offer these towers with a substrate support plate for loose media applications.

De-Gassing Tower Specifications


We offer a wide variety of loose media for a number of differing applications.

  • Non-corrosive materials
  • Simple design
  • Maintenance free nozzles
  • Counter current technology
  • Cross flow media
  • Quick disconnect ports
  • Atomizing zone above media
  • Custom sizing available

Aquatic Enterprises de-gassing towers and biological filter towers are both available in non-insulated ABS, insulated PVC, and fiberglass materials.  All are non-corrosive.

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