A blog about Landfill Construction Quality Assurance
Landfill operators everywhere must be prepared to give a thorough demonstration that their practices are environmentally sound, or they will lose public support as rising local awareness of environmental quality develops.
The most critical components of a landfill closure cap are the barrier layer and the drainage layer. The barrier (sealing) layer can be low-permeability soil (clay) and/or made from geosynthetic clay liners (GCLs).
The choice of Geosynthetic Clay Liner (GCL) may be a great option when the more normal Compacted Clay Liner (CCL) option is expensive or is not readily available in a region. Read about GCLs here!
Tags: clay layer, clay mineral, composite liner, finished product, gcls, geosynthetic clay liner, geotextile fabrics, landfill liner, Landfills, liquid flow, mineral montmorillonite, performance testing, plastic clay, scale laboratory, sodium bentonite, soil component, strict quality control, surface impoundments, tank farmsThe US Fabricated Geomembrane Institute (FGI) offers its popular short course, “Constructing with Fabricated Geomembranes“, on 23 October 2009 in Lakewood, Colorado. Those involved with the design, construction, operation and closure of potable water and irrigation ponds, floating covers, canals, landfills, waste water lagoons, secondary containment, golf course ponds, decorative applications, corrective action activities at closed sites, etc. are encouraged to attend.
Inferior geo-composite membranes which should both provide a low permeability membrane to cap a landfill and replace drainage stone otherwise needed above the low permeability layer are being offered which don’t do the job. It is essential to drain the interface and prevent development of a slip plane at the membrane on even quite gentle landfill slopes, but slip failures are inevitable if inadequate geo-composites are used. Find out how to avoid this pitfall.
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Introduction to Landfill Gas Extraction Systems eBook.
LANDFILL GAS EXTRACTION design, installation, operation and maintenance, including LANDFILL GAS ENERGY FROM WASTE (EfW)
Over 50 pages of essential information on landfill gas extraction system principles to bring your knowledge up to a standard to start designing your own extraction systems, appraise designs, or assess financial worth of an EfW project.
