Case Studies

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Treating Drinking Water with 99% Removal

In October 2011, the Cedarburg, Wisconsin Light and Water Utility installed a QED E-Z Tray® Air Stripper in a discreet addition to their existing production pump building. The E-Z Tray 72.6 handles a flow rate of 600 gpm and treats groundwater containing vinyl chloride that has been traced back to a nearby landfill. The influent into the Air Stripper is drinking water with 0.22 microgram per litre of vinyl chloride, and the goal is set at complete removal.

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Davis Street Landfill

Waste Management of Alameda County’s former Davis Street Landfill in San Leandro, California is the flagship of Waste Management’s Northern California operations.

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Using Air Strippers for Off-gas Treatment

Two pharmaceutical plants in Puerto Rico used large sequencing batch reactor (SBR) systems to treat their wastewater.

Treating Pharmaceutical Wastewater

A pharmaceutical facility in the Caribbean had an existing wastewater treatment process that utilized a sequencing batch reactor (SBR).

Thermally Enhanced NAPL Recovery

QED's AutoPump® Can Endure Tough Conditions to Deliver Superior Thermally Enhanced NAPL Recovery

Steam Enhanced Creosote Pumping

AutoPump® Integral to Innovative Steam Injection Process Used to Clean Up DOE Facility in Ohio

Santa Cruz Meets THM/DBP Challenge with Unique Air Stripping Process

Santa Cruz has successfully demonstrated an innovative way for the City to meet its water quality goals while using process recycled water as part of its supply source.

Removing VOCs from Municipal Water Supply

The U.S. Army Corps of Engineers (USACE) – Omaha District has funded the design and construction of a new groundwater treatment plant in Cheyenne, Wyoming to treat groundwater from the city’s Borie well field.

LFG Collection System Utilizes QED’s Revolutionary LFG Measurement and Control Technology

At a landfill in British Columbia, Canada, construction of an LFG collection system has just been completed. The system, designed by Sperling Hansen, will be online in spring 2015 and includes QED’s Quick-Change™ Orifice Plate Wellheads** which combine easy plate exchanges for accurate flow measurements with precise adjustment control over a broad flow range.

Landfill Pumps for Gas Well Dewatering

Waste Management's Springhill Regional Landfill near Campbellton, Florida generates "green" energy by extracting and burning the methane in landfill gas. Its $7 million landfill gas energy (LFGE) plant, with six large Caterpillar engines running 24 hours a day, 7 days a week, is capable of producing 4.8 million watts of power.

Improved Well Tuning Achieved at a Landfill Gas to Energy Developer's Sites

Building and managing a high-BTU landfill gas to energy system can present many challenges, but it’s not as complicated as it might seem. The key: start with a healthy, consistently productive wellfield.