Liner Leak Locating Articles
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Applications for UF Filtration Technology in Water & Wastewater
Water treatment technology is and can be applied to different municipalities, industries, and commercial businesses, each with their own specific water treatment needs. For this reason, it is beneficial to have technologies on hand that are versatile based on the treatment application. For instance, filters are used in almost every water/wastewater treatment application in either pretreatment or ...
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Applications of Ultrafiltration Treatment Technology
Water treatment technology is and can be applied to different municipalities, industries, and commercial businesses, each with their own specific water treatment needs. For this reason, it is beneficial to have technologies on hand that are versatile based on the treatment application. For instance, filters are used in almost every water/wastewater treatment application in either pretreatment or ...
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Interest Growing in Mining Applications for Geosynthetics
Some 40 percent of the geosynthetics manufactured today are used by the mining industry, according to one estimate, and there are predictions that figure will increase as the industry continues to adopt mining technologies that help improve efficiency and protect the environment. Jack Caldwell, an engineer at Robertson GeoConsultants, has gone as far as to say, “We believe that the ...
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Detection and Location of Leaks in Geomembrane Liners Using an Electrical Method: Case Histories
ABSTRACT A field-proven electrical technique, developed at Southwest Research Institute, San Antonio, Texas, is commercially available to detect and locate leaks in geomembrane liners. The electrical technique is used to inspect 100% of the geomembrane material that is covered by a conducting liquid. A voltage applied across the liner produces a uniform electrical potential distribution in the ...
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Locating Leaks in Geomembrane Liners of Landfills Covered With a Protective Soil
ABSTRACT The electrical leak location method was used to locate leaks in the geomembrane liners of single-lined and double-lined landfills covered with a protective soil cover. The landfills ranged in size from 0.40 hectare (one-acre) to 3.2 hectares (eight-acre). Water in the leak detection system under the primary liner indicated the primary liners were leaking. The principal of the electrical ...
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OEM off-highway `You`re an enabler`
OEMs are spending large sums of money in order to meet the continually tightening regulations in regards to fuel consumption and emissions reduction. The sheer size of equipment on top of high productivity demands causes frequent overheating—sometimes daily depending on the conditions. Evans Cooling Systems Inc., Sharon, CT, offers a coolant without water which allows equipment to run ...
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Experience with GCLs used as a conductive layer in geomembrane leak-location surveys
Engineers, installers, regulators, and owners are starting to rely on geomembrane leak-location surveys as part of the construction quality assurance for landfills. The various methods are described in ASTM Standard D 6747.' Standard procedures for conducting leak-location surveys of geomembranes covered with earth materials are described in ASTM Standard D 7007.2 Figure 1 shows the principle of ...
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Enhanced Geomembrane CQA through proper application of geomembrane leak location surveys
Abstract Historically, geomembrane construction quality assurance (CQA) has focused on destructive testing of welded seams to verify seam strength and integrity. Paradoxically, seams are not subject to significant stress and practically never fail in service, while holes and construction damage in the geomembrane are a much more widespread problem. The historical approach fails to evaluate how ...
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Comparison of dye testing and electrical leak location testing of a solid waste liner system
Abstract: Dye tracing and electrical leak location testing were independently conducted to detect and locate leaks in the primary geomembrane liner of two cells in a municipal landfill. Despite extensive quality control and quality assurance programs, water in the leak detection zone after construction indicated that the primary liner had a leak. Fluorescein dye tests were conducted by placing a ...
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Locating Geomembrane Liner Leaks under Waste in a Landfill
Abstract An Electrical Leak Imaging and Monitoring (ELIM SM) survey was used to locate leaks under 2.5 meters of stabilized waste in an active geomembrane-Iined landfill. The landfill is lined with two 2-mm thick HDPE geomembranes that are separated by a geonet drainage layer. The primary liner is covered with 600 mm of drainage sand and 2.5 meters of stabilized waste for a total cover thickness ...
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