Figures & data
Figure 1. Schematic diagram of a plastic smelting and extrusion system.
Figure 2. Schematics of the experimental system.
Table 1. Characteristics of the fern chips and their packed bed
Table 2. Operating conditions and nutrition rates
Table 3. GC-MSD data for the emitted VOCs from the smelting of recycled nylon at 250 °C
Figure 3. Time variations of EBRT, THC concentrations, and removal efficiency.
Figure 4. Time variations of THC concentrations and removal efficiencies of the biofilter (BF) and the biofilter plus the granular activated column (GAC) (BF+GAC) in experiment phase II (54 days) with a gas EBRT of 23.5 sec through the BF column.
Figure 5. Time variations of THC concentrations and removal efficiencies of BF and BF+GAC in experiment phase III (29 days) with a gas EBRT of 11.8 sec through the BF column.
Figure 6. Time variations of THC concentrations and removal efficiencies of BF and BF+GAC in experiment phase IV (12 days) with a gas EBRT of 5.9 sec through the BF column.
Figure 7. Time variations of medium pH and THC removal efficiency.
Figure 8. Variation of the volumetric VOC elimination capacity (K) with its loading (L) to the whole biomedia in experiment phases II, III, and IV. K/L = 0.78 indicates an average THC removal efficiency of 78% with L < 1 g m−3 hr−1.
