W.L. Gore & Associates GmbH
About
W.L. Gore & Associates is a global materials science company headquartered in Newark, Delaware, best known for inventing expanded PTFE (ePTFE) membrane technology. Founded in 1958 by Bill and Vieve Gore, with their son Bob Gore credited with the breakthrough expansion of PTFE, the company employs approximately 13,000 associates across diverse markets. In the environmental sector, Gore's flagship offering is the GORE Cover system — an engineered semi-permeable membrane that encapsulates composting windrows when combined with positive-direction aeration. The membrane creates a controlled environment that achieves over 99% containment of dust and bioaerosols while reducing odor and VOC emissions by more than 90%, and maintaining temperatures above 55 degrees Celsius for pathogen reduction. Over 400 GORE Cover installations operate across 30-plus countries, processing more than 4 million annual tons of feedstock including source-separated organics, biosolids, anaerobic digestate, and municipal solid waste. Available in bunker, heap, and mobile configurations, the system scales from hundreds to over 100,000 tons per annum. Beyond composting, Gore supplies industrial filtration products including filter socks and tube assemblies for lithium extraction via tubular backpulse filtration, liquid microfiltration media for pharmaceutical and food processing, catalytic filter bags targeting mercury, dioxin, furan, NOx, and SO2 emissions, and ozonation modules for semiconductor-grade water purification. The company also produces PEM water electrolysis membranes for green hydrogen production.
Key Products
An engineered semi-permeable membrane cover combined with positive-direction aeration that encapsulates composting windrows, achieving >90% odor/VOC control and >99% dust/bioaerosol containment while enabling pathogen reduction through temperature management.
Same membrane cover technology applied to biological drying of organic waste to reduce volume and moisture content before further processing or disposal.
Membrane cover system designed for recovering valuable organic resources from mixed waste streams through controlled aerobic processing.
Cover system for stabilizing organic waste to meet regulatory requirements before land application or final disposal.
Industrial filtration components using ePTFE membranes for liquid filtration applications including lithium extraction via tubular backpulse membrane filtration.
ePTFE-based microfiltration membranes for pharmaceutical, bioprocessing, and food and beverage process fluid treatment.
Specialty filtration bags for industrial emissions control, offering dioxin/furan removal, mercury control, NOx/NH3 reduction, and SO2 control.
Water treatment modules using ozone generation for semiconductor and microelectronics processing water purification.
Proton exchange membranes for water electrolysis systems producing hydrogen from water for clean energy applications.
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