A typical SCS landfill expansion project contains an engineering evaluation and analyses addressing important technical considerations which include the existing hydrogeologic conditions, global slope stability, Landfill base settlement, geomembrane compression and strain, leachate pipe strength, useful life of the existing infrastructure and utility lines, stormwater management, leachate and landfill gas system expansion.
This case study site, it shows that the vertical or piggyback expansion of a landfill is a unique way of solving landfill airspace shortage problem. Its feasibility is always site specific and depending on the existing waste types, slopes, liners, design capacity of leachate and gas collection, and stormwater management systems. In addition, the landfill design needs to be thoroughly investigated, engineered, and operated.
From the results of the global final slope stability and the landfill base settlement analyses, it concluded that a vertical expansion at the case study landfill will not increase the risk to human health or the environment over the existing regulatory approved conditions. A vertical expansion provides the landfill owner with an opportunity to increase the landfill volume and provide the residents with the maximum service life within the existing footprint of the permitted Landfill. This maximization of available resources does not expand the environmental footprint of the site and provides better environmental protection and at the same time creates a sustainable landfill site.
A vertical expansion provides the landfill owner with an opportunity to increase the landfill volume and provide the residents with the maximum service life within the existing footprint of the permitted Landfill. This maximization of available resources does not expand the environmental footprint of the site and provides better environmental protection and at the same time creates a sustainable landfill site.
This case study was presented at ISWA 2016.
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