Incineration fly ash is hazardous waste with heavy metals and dioxin-class substances; fine corrosive particles demand double containment, independent cells and a monitorable leak-detection layer with far stricter QA than ordinary landfills.
Fly-ash Landfill Lining: Fly-ash landfills use a double composite liner: lower layer 1.5-2.0mm HDPE or GCL-OF, a middle leak-detection layer (4-6mm drainage net + pipes + observation wells), and an upper primary liner of 1.5-2.0mm double-textured HDPE, with 400-600 g/m² filament geotextile above and below. Cells are sealed and accepted independently; seams and details get 100% testing with video records; batch re-inspection of materials is mandatory.
Incineration fly ash is hazardous waste with heavy metals and dioxin-class substances; fine corrosive particles demand double containment, independent cells and a monitorable leak-detection layer with far stricter QA than ordinary landfills.
| Location | Recommended material | Reason |
|---|---|---|
| Secondary liner | 1.5-2.0mm HDPE or GCL-OF 5000 | Lower containment |
| Detection layer | Drainage net 4-6mm + pipes + wells | Leak monitoring |
| Primary liner | 1.5-2.0mm double-textured HDPE | Main barrier, slope stability |
| Cushions | 400-600 g/m² filament geotextile ×2 | Fine abrasive ash protection |
| Cell division | Independent cell structures | Cell-by-cell sealing |
| Covers | HDPE + drainage + soil | Daily and final covers |
2024Hazardous fly-ash cells with double composite liner: GCL-OF plus HDPE below, 4-6mm drainage-net detection layer with observation wells, 1.5mm double-textured HDPE primary liner; 100% seam and detail testing with video records.
View project details ›Fly ash is hazardous waste — the inter-layer detection zone finds primary-liner damage early for intervention, standard practice for HW containment.
Observation-well levels plus periodic sampling; liquid or contamination in the detection zone triggers locating and repair procedures.
Dezhou Yurun Geosynthetics Co., Ltd. is a source manufacturer of geosynthetic anti-seepage materials, located in the geosynthetic industrial cluster of Lingcheng District, Dezhou City, Shandong Province, China. We supply HDPE geomembrane, pond liners, composite geomembrane, filament and staple geotextile, tunnel waterproof board, composite drainage net, sodium bentonite GCL, ecological bags and cement blanket to projects across China and overseas.
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HDPE geomembrane · pond liner · composite geomembrane · geotextile · GCL · drainage net · geobag · cement blanket · tunnel board
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+86 13105341718 (Mr. Yang · WeChat / WhatsApp)
