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Geomembrane Technologies, an Evoqua brand

Tank and Lagoon Covers for Water and Wastewater Applications


  • Structurally Supported Covers

    Geomembrane Technologies™ brand structurally supported covers consist of a high-strength, retractable sheet of coated fabric tensioned across a low-profile aluminum arched frame that spans the tank opening. This design effectively controls odor and algae while still providing easy access for inspection and maintenance. Geomembrane Technologies™ brand structurally supported covers are designed to:

    • Control odors
    • Block sunlight to control algae growth
    • Reduce chlorine loss and disinfectant by-product production
    • Prevent rainwater and debris from entering tanks

    These covers reliably capture odorous offgases, yet disconnect and retract easily. They are extremely durable, UV-protected, and resistant to vapors produced by wastewater treatment. 

    More Information » www.evoqua.com/en/brands/geomembrane-technologies/...

    Structurally Supported Covers
  • Biogas Collection Covers

    Geomembrane Technologies™ brand gas collection covers collect valuable biogas from anaerobic digestion systems. Custom-designed for tanks and lagoons of all sizes, Geomembrane Technologies™ brand covers are gastight to contain odors and protect biogas from contamination. In waste-to-energy projects, the collected methane gas can be used as a renewable fuel to generate process heat or electricity, helping to offset energy costs. Geomembrane Technologies™ brand gas collection covers are designed to:

    • Collect biogas to be converted into green energy
    • Control odors
    • Lower operating costs
    • Provide thermal insulation
    • Allow access for sampling and maintenance

    Built to withstand tough conditions, Geomembrane Technologies™ brand covers are fabricated with strong, long-lasting materials to resist tears, punctures, chemicals, an...
    More Information » www.evoqua.com/en/brands/geomembrane-technologies/...

    Biogas Collection Covers
  • Biogas Control Systems

    Geomembrane Technologies™ brand control systems safely deliver collected biogas from our gas collection covers into a pipeline for renewable energy conversion or disposal, while monitoring and protecting the cover. The biogas control systems are designed to:

    • Safely deliver biogas to be converted into green energy
    • Protect the cover from damages
    • Control sediment and moisture in the gas
    • Withstand corrosive gases
    • Allow real-time remote monitoring
    • Alert operators of unsafe operating conditions 

    The control system regulates the withdrawal of biogas from underneath the cover. The system maintains a consistent vacuum by removing biogas at the same rate as it is generated. The cover is drawn to the water surface, helping protect it. 

    More Information » www.evoqua.com/en/brands/geomembrane-technologies/...

    Biogas Control Systems
  • Gasholders

    Geomembrane Technologies Inc. (GTI) is the exclusive distributor of VSO Biogas Technologies’ double-membrane gasholders in the United States and Canada. GTI’s cover experts can deliver, install, and commission these gasholders, and provide advice on how to maximize the use of biogas. Gasholders are designed to:

    • Regulate and respond to fluctuations in biogas volume
    • Safely store excess biogas for later use
    • Reduce greenhouse gas emissions
    • Increase profitability by reducing wasted biogas
    • Operate digesters with lower energy demand

    Gasholders safely store and regulate the use of biogas, which can be used in engines and combined heat and power (CHP) units for electricity and heat at wastewater treatment plants, municipalities, and farms. Biogas can be also be used in boilers for process heat and steam.

    More Information » www.evoqua.com/en/brands/geomembrane-technologies/...

  • Modular Covers

    Geomembrane Technologies designs and installs floating, modular covers for effective odor abatement, thermal protection, and algae control. By covering the water surface with a GTI modular cover, the effects of winds and sunlight are drastically reduced. Gases are held in suspension beneath the cover, limiting the emission of foul odors. Geomembrane Technologies™ brand modular floating covers are designed to:

    • Control foul odors
    • Provide thermal insulation
    • Block sunlight to minimize algae growth
    • Resist cracks, breaks, chemicals, and UV rays
    • Accommodate water level fluctuations
    • Drain rainwater automatically 

    Constructed with durable polyethylene materials, Geomembrane Technologies™ brand modular covers are flexible and buoyant, allowing workers to safely walk on the cover. The modular design allows...
    More Information » www.evoqua.com/en/brands/geomembrane-technologies/...

    Modular Covers
  • Suspended Covers

    Geomembrane Technologies designs and fabricates functional, economical suspended covers for small rectangular and circular tank applications. Suspended covers consist of a durable membrane securely anchored to the tank perimeter and suspended across the tank opening. Geomembrane Technologies™ brand suspended covers are designed to:

    • Capture odorous gases for removal and treatment
    • Block sunlight to inhibit algae growth
    • Control tank temperatures
    • Reduce water evaporation

    Geomembrane Technologies™ brand suspended covers are constructed with strong, durable materials that are both chemical resistant and UV-protected. They are low-maintenance and custom-made to meet each of our customers’ unique requirements. Suspended covers can be installed without disrupting plant operations.

    More Information » www.evoqua.com/en/brands/geomembrane-technologies/...

    Suspended Covers
  • Containment Liners

    Geomembrane Technologies offers high-end containment liner solutions. Whether it’s for industrial, recreational, or aesthetic purposes, Geomembrane Technologies™ brand quality liners provide long-lasting performance. The liners are designed to:

    • Safely contain liquid with many types of chemical compositions
    • Resist tears, impact, punctures, and environmental stress cracking
    • Provide leak protection and reliably contain contaminants
    • Protect groundwater and safeguard the environment
    • Conserve water for future reuse
    • Increase storage capacity
    • Enhance landscape design

    Using industry-leading products and precision fabrication and installation processes, Geomembrane Technologies prides itself on delivering turnkey liner solutions. 

    More Information » www.evoqua.com/en/brands/geomembrane-technologies/...

    Containment Liners
  • Floating Baffles & Clearwell Baffle Curtains

    Floating baffles and clearwell baffle curtains are used to help improve the treatment process at your water or wastewater facility. They act as hydraulic barriers to divide the basin into sections for treatment stages, or to establish more efficient flow patterns. Typical applications include:

    • Municipal and industrial wastewater treatment facilities (tanks, lagoons, ponds)
    • Potable water tanks and reservoirs

    Geomembrane Technologies™ brand floating baffles and clearwell curtains are custom-built to fit unique design specifications. They are made with flexible, high-strength geomembranes for long-lasting performance.

    More Information » www.evoqua.com/en/brands/geomembrane-technologies/...

    Floating Baffles & Clearwell Baffle Curt...



  • Victor Cormier

    Geomembrane Technologies Inc. (GTI)
    Fredericton, New Brunswick