Anaerobic Digester Covers

Product catalog summary

Anaerobic Digester Covers Overview

Truss Structure:
Truss covers are designed with welded steel plates on both the top and bottom, creating an attic space that provides insulation and protects structural members from corrosion. These covers are suitable for both new and retrofit installations, offering innovative designs for biogas and odor containment. They are economical and easy to install, adhering to current structural standards.

Radial Beam Structure:
Beam covers are a cost-effective option, featuring no ceiling plates and reduced field weld length compared to truss covers. They are prefabricated for faster installation and accommodate tank diameters from 20 to 125 feet.

Unique Features:
The DuoSphere™ membrane digester cover is versatile and cost-effective, suitable for both new and replacement covers. Additional options include geomembrane seals and hinged ballast block platform designs.

Types of Digester Covers:

Buoyant Covers: These float on the liquid surface, providing stability and thermal insulation, and are ideal for high liquid level variations.
Gasholder Covers: These float on digester gas, storing gas and maintaining pressure, allowing for liquid level flexibility.
Fixed Covers: These are attached to the tank, suitable for small liquid level variations, and are the most economical steel cover option.

Slide Guides:
Slide guides enhance cover movement above the tank wall, increasing gas storage capacity. They feature UHMW polyethylene slide plates that prevent tipping and binding, resist environmental loads, and require no lubrication.

Advantages of WesTech Slide Guides:
These guides are ideal for retrofits and upgrades, offering corrosion-proof, maintenance-free operation, and easy installation and alignment.

Conclusion:
WesTech offers a comprehensive range of digester covers, ensuring customers receive the best solution tailored to their needs.

Catalog excerpts

Anaerobic Digester Covers

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Options to Suit Your Process WesTech anaerobic digester covers are ideal for new and retrofit installations. These custom covers are innovatively designed by WesTech engineers who have decades of experience meeting specific customer specifications for biogas and odor containment. Incorporating the most current structural standards, WesTech covers are economical and easy to install. Unique Features of WesTech Truss and Radial Beam Covers • Prefabricated beam roof sections for faster installation • Designed for tank diameters ranging from 20 - 125 ft. Radial Beam Structure • Fixed and Gasholder...

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Fixed Covers • No movement; they are attached to the tank • Best option for small liquid level variations • Most economical steel cover option Innovative designs incorporating a water launder or more advanced seal materials can overcome liquid level variation limitations. A conventional annular seal design relies on the sidesheets being submerged in the sludge to achieve a pressure seal and prevent odors from escaping. Buoyant Covers • Covers float on the surface of the liquid • Best option for high liquid level variations • Truss design increases the stability of the cover • Attic space provides...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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