Project Summary
Solid Waste Management
Solid Waste Management
RECEPTION BED FOR DRIED AND CALCIFICATED SLUDGE (50.000M³) FOR THE SANITARY LANDFILL SITE OF TAGARADES, THESSALONIKI
Client: Thessaloniki Water Supply and Sewerage CO.S.A
Time: 2008
Budget 510.000€
ISSUE
The purpose of the
project was the final design of the bed for the deposition of produced sludge from the Waste Water Treatment Plant (WWTP) in “Galliko”, for safe temporary storage of the inert and calcificated sludge, until the construction of Sludge Thermal Treatment Plant.
SOLUTION
The produced sludge of the WWTP in “Galliko” – about 135tn/day – accumulates within the WWTP creating health problems (the sludge content is infectious) for workers on the site and residents of the broader region, as well as problems for the natural environment.
The proposed area for the construction of the bed is adjacent to the existing sanitary landfill of Tagarades, in a space within the boundaries of the landfill site.
The total capacity of the bed - taking into account the final grade work after the required earthworks, the slopes and the surface quality - is estimated at 50.000m³, while the lifetime of the bed is estimated to 372 days.
Concisely, the design of the project includes the following:
Time: 2008
Budget 510.000€
ISSUE
The purpose of the
project was the final design of the bed for the deposition of produced sludge from the Waste Water Treatment Plant (WWTP) in “Galliko”, for safe temporary storage of the inert and calcificated sludge, until the construction of Sludge Thermal Treatment Plant.SOLUTION
The produced sludge of the WWTP in “Galliko” – about 135tn/day – accumulates within the WWTP creating health problems (the sludge content is infectious) for workers on the site and residents of the broader region, as well as problems for the natural environment.
The proposed area for the construction of the bed is adjacent to the existing sanitary landfill of Tagarades, in a space within the boundaries of the landfill site.
The total capacity of the bed - taking into account the final grade work after the required earthworks, the slopes and the surface quality - is estimated at 50.000m³, while the lifetime of the bed is estimated to 372 days.
Concisely, the design of the project includes the following:
- one bed with surface area of 1 hectare, depth of 5.66m and storage capacity of 50.000m³. The sub - works included:
- earthworks (excavation, etc)
- sealing of beds
- pipeline network with diameters of 160mm and 315mm and lengths of 153m and 158 respectively inside the bed for collecting the leachate
- chamber made of cement for leachate storage
- access roads (internal roadway network) at the perimeter of the bed with width of 5m and total length of 550m
- fencing of the site with a total length of 1.192m
- fencing of the bed with a total length of 547m
- monitoring of settlement with the installation of witnesses
The collected quantity of leachate is transported by trucks to the existing WWTP.
BENEFIT
The design of the project solved the problem of temporary safe deposition of produced sludge from the WWTP in “Galliko”.