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    • Digesters and Gas Storage

    Digesters and Gas Storage

    Siemens is known for its capability to provide a full scope of anaerobic digestion process equipment, in addition to design and system sizing expertise.  Product offerings include hydraulic and confined gas mixing systems, heaters and heat exchangers, steel floating covers, steel gasholder covers, steel fixed covers, turnkey provision of dual membrane gas storage systems, and gas handling and safety equipment.

    Anaerobic Digestion Tank Cover

    Anaerobic Digestion Gas Holders & Processes:

    Dystor® Digester Gas Holder System
    The Dystor® system is a digester gas holder design that uses a dome-shaped, engineered membrane system to store methane gas, provide for sludge storage and prevent odors.
    Dystor® Digester Gas Holder System



    Crown® Disintegration System
    The Crown® Disintegration System increases the gas yield from the anaerobic digester by as much as 30%.  At the same time, it reduces sludge for disposal by up to 20%, thus drastically lowering disposal costs.
    Crown® Disintegration System

    Pearth™ Digester Gas Mixing System
    The Pearth™ gas mixing system features sequential discharge which develops a variable mixing pattern in the digester.
    Pearth™ Digester Gas Mixing System

    Spiral Guided Digester Gas Holder
    The PFT® Spiral Guided Digester Gas Holder rotates as it travels up and down and is suited for larger applications, typically up to 110 feet in diameter, or where unbalancing loads are probable.
    PFT® Spiral Guided Digester Gas Holder

    Vertical Guided Digester Gas Holder
    The PFT® Vertical Guided Gas Holders travel through vertical guides recessed on the rim skirt.
    PFT® Vertical Guided Digester Gas Holder

    Duo-Deck™ Floating Digester Cover
    The Duo-Deck™, or exposed truss, digester cover design prevents the roof plate and structural components of the cover from coming in contact with the digester contents, thereby avoiding the related corrosive effects.
    Duo-Deck™ Floating Digester Cover

    Combination Heater and Heat Exchange
    The PFT® Heater and Heat Exchanger insures the compatibility between the boiler, heat exchanger, and controls required for successful operation.
    Combination Heater and Heat Exchange

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    Contact Us

    For more information about digesters, contact the Information Desk, Monday through Friday, 8 a.m. to 5 p.m., Eastern Standard Time: 1.866.926.8420 or 1.724.772.1402 or information.water@siemens.com.

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    Digester Case Study

    Dystor® Installation Increases Gas Storage Capacity, Resulting in Significant Cost Savings for the City of Eau Claire, WI

    The Eau Claire, WI. facility’s secondary digester cover failed to provide adequate gas storage to allow use of the facility’s cogeneration facility for the five years since it had been installed.

    The city requested Siemens Water Technologies remove and replace the existing ballasted fiberglass cover with a Dystor® membrane gas holder system. The solution also needed to provide 120 days of sludge storage due to the limited access to farmland for application of sludge during winter months.

    Read Full Case Study

    Digester Case Study
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    Featured Digester Products and Services

    Dystor® Digester Gas Holder Systems
    Crown Disintegration Process
    Duo-Deck Floating Cover
    Pearth Gas Mixing
    Spiral Guided Gas Holder
    Vertical Guided Gas Holder
    Combination Heater and Heat Exchange

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