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Biofiltration of odorous fume emitted from recycled nylon melting operations
This study aimed to develop a biofilter packed only with fern chips for the removal of odorous compounds from recycled nylon melting operations. The fern chip biofilters could avoid the shortcomings of traditional media, such as compaction, drying, and breakdown, which lead to the performance failure of the biofilters. A pilot-scale biofilter consisting of an acrylic column (14 cm2 × 120 cm height) packed with fern chips to a volume of around 19.6 L was used for the test. Experimental results indicate that oxygen- and nitrogen-containing hydrocarbons as well as paraffins were major volatile organic compounds (VOCs) emitted from thermal smelting of recycled nylon at 250 °C. With operation conditions of medium pH of 5.5–7.0, empty bed retention time (EBRT) of 6–12 sec, influent total hydrocarbon (THC) concentrations of 0.65–2.61 mg m−3, and volumetric organic loading of 0.05–0.85 g m−3 hr−1, the fern-chip-packed biofilter with nutrients of milk, potassium dihydrogen phosphate, and glucose could achieve an overall THC removal efficiency of around 80%. Burnt odor emitted from the smelting of the recycled nylon could be eliminated by the biofilter.
Biotreatment of contaminants in air streams offers an inexpensive and efficient alternative to conventional technologies. Biofiltration have a great potential for the degradation of gas-borne odorous compounds. THC removal efficiency of around 80% can be achieved. Burnt odor emitted from the smelting of the recycled nylon could be eliminated by the biofilter. This study provides an experimentally verified model for the design and operation of such biotreatment systems.
Biofiltration of odorous fume emitted from recycled nylon melting operations
This study aimed to develop a biofilter packed only with fern chips for the removal of odorous compounds from recycled nylon melting operations. The fern chip biofilters could avoid the shortcomings of traditional media, such as compaction, drying, and breakdown, which lead to the performance failure of the biofilters. A pilot-scale biofilter consisting of an acrylic column (14 cm2 × 120 cm height) packed with fern chips to a volume of around 19.6 L was used for the test. Experimental results indicate that oxygen- and nitrogen-containing hydrocarbons as well as paraffins were major volatile organic compounds (VOCs) emitted from thermal smelting of recycled nylon at 250 °C. With operation conditions of medium pH of 5.5–7.0, empty bed retention time (EBRT) of 6–12 sec, influent total hydrocarbon (THC) concentrations of 0.65–2.61 mg m−3, and volumetric organic loading of 0.05–0.85 g m−3 hr−1, the fern-chip-packed biofilter with nutrients of milk, potassium dihydrogen phosphate, and glucose could achieve an overall THC removal efficiency of around 80%. Burnt odor emitted from the smelting of the recycled nylon could be eliminated by the biofilter.
Biotreatment of contaminants in air streams offers an inexpensive and efficient alternative to conventional technologies. Biofiltration have a great potential for the degradation of gas-borne odorous compounds. THC removal efficiency of around 80% can be achieved. Burnt odor emitted from the smelting of the recycled nylon could be eliminated by the biofilter. This study provides an experimentally verified model for the design and operation of such biotreatment systems.
Biofiltration of odorous fume emitted from recycled nylon melting operations
Chen, Kuan-Po (author) / Chang, Hsiao-Yu (author) / Chou, Ming-Shean (author)
Journal of the Air & Waste Management Association ; 63 ; 1343-1351
2013-11-01
9 pages
Article (Journal)
Electronic Resource
English
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