Grain size dependent distribution of different plastic types in coarse shredded mixed commercial and municipal waste
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in: Waste management, Jahrgang 103.2020, Nr. 15 February, 11.01.2020, S. 388-398.
Publikationen: Beitrag in Fachzeitschrift › Artikel › Forschung › (peer-reviewed)
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TY - JOUR
T1 - Grain size dependent distribution of different plastic types in coarse shredded mixed commercial and municipal waste
AU - Möllnitz, Selina
AU - Khodier, Karim
AU - Pomberger, Roland
AU - Sarc, Renato
PY - 2020/1/11
Y1 - 2020/1/11
N2 - The Waste Framework Directive regulates the recycling of waste in Europe. The definition of waste isspecified in different guidelines and regulations. Mixed Commercial Waste is waste from industry whichis not collected separately. Currently there is little known about its composition. Mixed Municipal Waste,on the other hand, is household waste that cannot be attributed to any separately collected waste fraction (AdSLR, 2012). Both wastes are currently treated focussing on the generation of refuse-derived fuel rather than on the separation of recyclables (mainly performed for metals).The purpose of this paper is to characterise the amounts of various plastic types contained in different grain sizes of two-dimensional and three-dimensional plastics sorting fractions of both waste types. Nine types of plastics were identified as potential recycling materials for which recycling processes as well as a market are available. Both wastes were shredded, sampled and sieved into nine grain size classes (GSC). Fractions coarser than 20 mm were sorted, generating a ‘plastics-2D’ and a ‘plastics-3D’ fraction among others. The two plastics fractions were further characterised as plastic types using a near-infrared sensor and a Fourier-transform infrared spectrometer. The results reveal a potential for plastic recycling through mechanical and feedstock recycling options for the examined wastes. Certain types of plastics, of certaindimensionality, tend to come in certain grain sizes, which is essential for mechanical enrichment and discharge.
AB - The Waste Framework Directive regulates the recycling of waste in Europe. The definition of waste isspecified in different guidelines and regulations. Mixed Commercial Waste is waste from industry whichis not collected separately. Currently there is little known about its composition. Mixed Municipal Waste,on the other hand, is household waste that cannot be attributed to any separately collected waste fraction (AdSLR, 2012). Both wastes are currently treated focussing on the generation of refuse-derived fuel rather than on the separation of recyclables (mainly performed for metals).The purpose of this paper is to characterise the amounts of various plastic types contained in different grain sizes of two-dimensional and three-dimensional plastics sorting fractions of both waste types. Nine types of plastics were identified as potential recycling materials for which recycling processes as well as a market are available. Both wastes were shredded, sampled and sieved into nine grain size classes (GSC). Fractions coarser than 20 mm were sorted, generating a ‘plastics-2D’ and a ‘plastics-3D’ fraction among others. The two plastics fractions were further characterised as plastic types using a near-infrared sensor and a Fourier-transform infrared spectrometer. The results reveal a potential for plastic recycling through mechanical and feedstock recycling options for the examined wastes. Certain types of plastics, of certaindimensionality, tend to come in certain grain sizes, which is essential for mechanical enrichment and discharge.
KW - Mixed Commercial Waste
KW - mixed municipal waste
KW - Circular Economy
KW - Polymer recycling
KW - Polymer type distribution
KW - 2D Plastics
KW - 3D Plastics
U2 - 10.1016/j.wasman.2019.12.037
DO - 10.1016/j.wasman.2019.12.037
M3 - Article
VL - 103.2020
SP - 388
EP - 398
JO - Waste management
JF - Waste management
SN - 0956-053X
IS - 15 February
ER -