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Contact Details:
Engineered Linings (Pty) Ltd.
8 Station Road
Montague Gardens
Cape Town
Western Cape
7441
South Africa
Tel: +27 21 551 2430
Fax: +27 21 552 5928
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Hazardous waste landfill site lined with geosynthetic linings
Product News Tuesday, February 2, 2010: Engineered Linings (Pty) Ltd.
Client Chrome International South Africa
Project Hazardous Landfill site, Newcastle
Liner Specification Primary Liner - 2,0mm HDPE
Secondary Liner - GCL
Slope Re-inforcement - Geomesh
Intermediate Drainage - Geonet
Tertiary Liner - 1,0mm HDPE
Size 357 200m²
Consultants Steffen Robertson & Kirsten (SRK)
Application Details
Chrome International is a joint venture between Bayer SA and Sentrachem. The plant produces sodium dichromate crystals, sodium dichromate solution and chromium trioxide, and the waste stream generated requires secure storage to prevent pollution.
The hazardous (H:h) landfill was the first phase to be developed for Chrome International South Africa and exceeds existing DWAF legislation, meeting proposed future standards.
A sophisticated double liner system incorporating a leak detection layer was installed to provide the required security. Photograph shows partial completion of one slope with the white GCL awaiting the final 2,0 mm thick HDPE liner.
See photo - On the far slope all 5 layers can be seen. Moving left to right is 1,0mm HDPE, Geonet, Geomesh, GCL and finally 2,0mm HDPE. In the foreground, Geotextile is used for protection of a temporary walkway.
The composite lining installation to Phase 1 took approximately 6 weeks to complete. It was however filled far quicker than anticipated and Phase 2 had to be constructed and lined during the first half of 2000. We installed the same composite lining system in both phases.
OTHER LINED LANDFILLS
Aloes - Cell 2 (H:H)
Bellville South - Cells 5,6&7 (GLB+)
Bulbul Drive - Phases 1,2A, 2B & 2C (1&2) (H:h)
Brugspruit Hazardous Waste Lagoon (H:h)
Holfontein - Cells 1A,3,4,5,6A & 6B (H:H)
Mariannhill - Cells 1, 2A, 3 & 4A (GLB+)
Mossgas Hazardous Waste pond No. 3 (H:H)
Shongweni - Cells 1, 2, 3 & 4 (H:h)
Umlazi - Northern Site (H:h)
Vissershok Waste Management Facility Cells 2 & 3 (H:H)
Vissershok/ CMC - Cell 2, 3, 4 (H:h)
Coastal Park Landfill (CMC) - Phase 2A , 2B, 2C, 2D(GLB+)
Buffelsdraai Landfill (GLB+)
Kupferberg Landfill - Windhoek, Namibia
DCLM Landfill - Kwazulu Natal