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Anaerobic Digester Covers

New or Retrofit Installation - Fixed or Floating

A welded anaerobic digester cover is the most cost-effective solution for your waste treatment needs! A digester cover will stop odors from escaping to the environment.

Anaerobic covers feature steel plates over a structural framework. During field assembly, steel roof plates and support beams are connected to the center ring and outside support ring. Fixed anaerobic digester covers are supported by the top of the tank wall with bearing plates. Floating digester covers are guided by vertical channels as the tank volume increases or decreases, and include a rim skirt inside the tank to contain the gas.

Covers are custom desgned for specific project loads such as dead, live, snow, vacuum, seismic, and wind load. Ports, manholes, nozzles, mixer support, and instrumentation mounts are provided as required. If needed, handrails and tie-off points are available for safe access to equipment.

Phillips Tank has a proven track record of installing anaerobic digester covers. Contact us today for a free consultation and to find the perfect solution for your waste treatment needs.

Engineering Considerations for Anaerobic Digester Covers
  • Load Calculations: The cover must be designed to withstand expected loads such as dead, live, snow, vacuum, seismic, and wind loads. This requires detailed calculations and modeling to ensure that the cover can handle the expected loads without failure.

  • Anchoring and restraint: A fixed cover is anchored to the top of the digester tank. A floating cover is guided by channels on the inside wall of the tank.

  • Seal Design: The cover must seal effectively to prevent odors and gas from escaping the digester.

  • Safe Access: The cover must be compliant with OSHA and other regulations to provide safe access for maintenance and inspection.

  • Equipment: The cover must have ports, manholes, and nozzles for inspection access, mixer support, and instrumentation mounts as required by the project. These should be designed and placed in a way that makes it safe for maintenance personnel to access the digester.

Trusted, Responsive, Nationwide Tank Contractor

PTS has over 130 employees and specializes in designing, engineering, repairing, and constructing above-ground metal storage tanks and related structures. PTS has active projects in various industries, such as petroleum, power, chemical, and renewable fuels markets throughout the United States and the Pacific Island nations.

At PTS, our commitment to our customers shapes everything we do. We have served companies across an array of industries, handling new tanks, repairs, and modifications. Our collective methodology, industry knowledge, and exhaustive range of abilities permit us to meet one-of-a-kind needs of our customers as they react to industry expectations. We believe in good quality and on-time delivery.  We provide an excellent working relationship based on integrity and professionalism. 

PTS is your trusted tank advisor and provides The PTS Guarantee: if you find a less expensive engineered solution to your tank needs, our engineering work is free. PTS has developed custom, proprietary business systems that help it have the most accurate design drawings and competitive lead times in the industry. Also, PTS is a nationwide tank contractor that is willing and able to go anywhere, anytime to service your tank needs.


Main Office

13A Talbot Ave

Braddock, PA 15104

(412) 315-7963

Hawaii Office

905 Kalanianaole Hwy #1601 Kailua, HI 96734

(808) 809-4200

Houston, TX Office

4811 Cripple Creek Dr
Houston, TX 77017

(832) 900-2152

Other Offices

Braddock, PA (Design/Engineering Office)

Signal Hill, CA (Branch Office)

Phillips Tank Office Locations

Project Profiles

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