Feasibility study of the expansion of a municipal solid waste landfill

Despite the increasing recycling rate, the generation of non-hazardous special waste is increasing and, hence, new landfill volumes are needed. This thesis presents a case study of a landfill in the municipality of Grosso (Piedmont, NW Italy). The landfill is currently composed of three lots: •??Lot1, exhausted in 1996 - capacity 180,000 m3; •??Lot2, exhausted in 2014 - capacity 494,020 m3; •??Lot3, currently used, capacity 821,800 m3; The landfill receives about 50,000 t/y (43,482 t in 2021) and, to ensure its operation in the future, this thesis addresses the feasibility study of a new lot. Three different solutions were analysed with a phased approach: the first solution is a merged lot in the western side with a volume of 770,000 m3; the second solution consists in separating the lot of solution 1 into two lots separated by the current access road, achieving a capacity of 701,000 m3; and the last one is a lot lying on the existing ones with a volume of 110,000 m3. This case study demonstrates the pros and cons of the three possibilities and it leads to the choice of the best solution.