Abstract
In this study, a synthetic filter material with nutrients (PVA/peat/KNO3 composite bead) was developed for biofilteration. The optimal preparing condition was each of the peat and PVA aqueous solutions mixed with 6.4 g KNO3, and the minimum nitrogen content in the boric and phosphate aqueous solutions was 3.94 and 1.52 g-N/l, respectively. The equilibrium amount of inorganic nitrogen extracted by leaching from the prepared composite bead was between 7.95 and 8.21 mg N/g dry solid. The path of inorganic nitrogen extracted by leaching was the inorganic nitrogen dispersed in the peat phase firstly diffused into the outer PVA phase and then it diffused out of the bead surface for the A-type bead; and that was the inorganic nitrogen dispersed in both the peat and PVA phases simultaneously diffuses into the outer PVA phase and out of the bead surface, respectively, for the H-type bead. The microbial growth rate k g of the H-type composite bead was higher than that of the A-type composite bead about 1.09–1.58 times, and the maximum value of k g was at the H-type composite bead immersed in 0.384 M KNO3 aqueous solution. The percentage of removed VOCs retained at more than 98% during the biofilter operating 230 days as the composite bead immersed in KNO3 aqueous solution before packing. This composite bead bed was without the further addition of nutrients during the operating period.
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References
Deviney JS, Deshusses MA, Webster T (1999) Biofiltration for air pollution control. Lewis publishers, New York
Williams TO, Miller FC (1992) Biocycle 33:75
Hodge DS, Tahatabai F, Winer AM (1991) Environ Technol 12:655
Bohn HL (1993) In: Proceedings of the 86th Annual Meeting and Exhibition of the Air and Waste Management Association, Denver, Coloado
Ottengraf SPP, Konings JHG (1986) Bioprocess Eng 1:61
Peters DA, Hickman GT, Stefanoff JG, Garcia MB Jr (1993) In: Proceedings of the 86th Annual Meeting and Exhibition of the Air and Waste Management Association, Denver, Coloado
Ergas SJ (1994) In: Proceedings of the 87th Annual Meeting and Exhibition of the Air and Waste Management Association, Cincinnati, Ohio
Ottengraf SPP, van den Oever AHC (1983) Biotechnol Bioeng 25:3089
Hashimoto S, Furukawa K (1987) Biotechnol Bioeng 30:52
Chen KC, Lin YF (1984) Enzyme Microb Technol 16:79
Chan WC, Lu MC (2005) J Polymers Environ 13:7
Carlson DA, Leiser CP (1966) J Water Pollut Control Federation 38:829
Weckhuysen B, Vriens L, Verachtert H (1993) Appl Microbiol Biotechnol 39:395
Morgenroth E, Schroeder ED, Chang DPY, Scow KM (1995) In: Proceedings of the 88th Annual Meeting and Exhibition of the Air and Waste Management Association, San Antonio, Texas
Reynold TD (1982) Unit operation and process in environmental engineering. Wadsworth Inc., California
Valsaraj KT (1995) Elements of environmental engineering: thermodynamics and kinetics. Lewis publishers, New York
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The authors wish to thank the National Science Council of the Republic of China for financial aid through the project, NSC 90-2211-E-216-004.
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Chan, WC., Lin, ZY. A Synthetic Filter Material Containing Nutrients for Biofilter. J Polym Environ 14, 157–164 (2006). https://doi.org/10.1007/s10924-006-0005-8
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DOI: https://doi.org/10.1007/s10924-006-0005-8