TY - JOUR

T1 - CASE STUDY ON ENHANCED LANDFILL MINING AT MONT-SAINTGUIBERT LANDFILL IN BELGIUM

T2 - CHARACTERIZATION AND POTENTIAL OF FINE FRACTIONS

AU - Hernandez Parrodi, Juan Carlos

AU - García Lopez, Cristina

AU - Küppers, Bastian

AU - Raulf, Karoline

AU - Vollprecht, Daniel

AU - Pretz, Thomas

AU - Pomberger, Roland

PY - 2019/12/23

Y1 - 2019/12/23

N2 - Within the framework of the “EU Training Network for Resource Recovery through Enhanced Landfill Mining – NEW-MINE”, around 371 Mg of waste were excavated from a landfill site in Mont-Saint-Guibert, Belgium. Parameters such as bulk density, water content, particle size distribution and material composition of the fine fractions (material <90 mm) were determined and analyzed. The variations of bulk density and water content with particle size were studied as well and grouped material fractions were employed for the classification of the material composition. The present article has the main objective to document and disseminate the findings on the material characterization of the fine fractions obtained in this case study, since such information is of critical relevance for the design of an effective and efficient mechanical processing in (enhanced) landfill mining projects. Additionally, the potential of fine fractions for material and energy recovery is discussed. The fine fractions accounted for about 77 wt.% of the total amount of excavated material in raw state. These fractions presented an overall bulk density range of 720-1000 kg/m3 (raw state) and a total water content range of 25-30 wt.%. Results on the material composition in dry state reveal that amounts of 2.1-19.7 wt.% “Combustibles”, 31.1-35.4 wt.% “Inert” and 0.6-1.8 wt.% “Total metals” could be recovered from fine fractions 90-10 mm, while 37.8-55.6 wt.% “Fine fractions <10 mm” could be processed further in order to increase the recovery amounts of the previous fractions and produce a soil substitute material.

AB - Within the framework of the “EU Training Network for Resource Recovery through Enhanced Landfill Mining – NEW-MINE”, around 371 Mg of waste were excavated from a landfill site in Mont-Saint-Guibert, Belgium. Parameters such as bulk density, water content, particle size distribution and material composition of the fine fractions (material <90 mm) were determined and analyzed. The variations of bulk density and water content with particle size were studied as well and grouped material fractions were employed for the classification of the material composition. The present article has the main objective to document and disseminate the findings on the material characterization of the fine fractions obtained in this case study, since such information is of critical relevance for the design of an effective and efficient mechanical processing in (enhanced) landfill mining projects. Additionally, the potential of fine fractions for material and energy recovery is discussed. The fine fractions accounted for about 77 wt.% of the total amount of excavated material in raw state. These fractions presented an overall bulk density range of 720-1000 kg/m3 (raw state) and a total water content range of 25-30 wt.%. Results on the material composition in dry state reveal that amounts of 2.1-19.7 wt.% “Combustibles”, 31.1-35.4 wt.% “Inert” and 0.6-1.8 wt.% “Total metals” could be recovered from fine fractions 90-10 mm, while 37.8-55.6 wt.% “Fine fractions <10 mm” could be processed further in order to increase the recovery amounts of the previous fractions and produce a soil substitute material.

U2 - 10.31025/2611-4135/2019.13877

DO - 10.31025/2611-4135/2019.13877

M3 - Article

VL - 8.2019

SP - 47

EP - 61

JO - Detritus

JF - Detritus

SN - 2611-4135

IS - December

ER -