Aerobic biofiltration processes - Advances in wastewater treatment

Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management

Volumn 10, Issue 4, 2006, Pages 264-276

  Verma, M ^a   Brar, S K ^a   Blais, J F ^a   Tyagi, R D ^a   Surampalli, R Y ^b  

^a CENTRE EAU TERRE ENVIRONNEMENT   (Canada)

^b U S ENVIRONMENTAL PROTECTION AGENCY   (United States)

Author keywords

Biological treatment; Filtration; Wastewater management

Indexed keywords

BIOCHEMICAL OXYGEN DEMAND; BIOFILMS; BIOFILTERS; BIOLOGICAL WATER TREATMENT; MICROORGANISMS; WASTEWATER TREATMENT;

BIOLOGICAL WASTEWATER TREATMENT; WASTEWATER BIOFILTRATION;

FILTRATION;

BIOCHEMICAL OXYGEN DEMAND; BIOFILMS; BIOFILTERS; BIOLOGICAL WATER TREATMENT; FILTRATION; MICROORGANISMS; WASTEWATER TREATMENT;

FILTRATION; WASTE TREATMENT; WASTEWATER;

EID: 33748784078     PISSN: 1090025X     EISSN: None     Source Type: Journal    
DOI: 10.1061/(ASCE)1090-025X(2006)10:4(264)     Document Type: Article

References (116)

1. Anderson, D. L., Siegrist, R. L., and Otis, R. J. (1985). "Technology assessment of intermittent sand filters." Rep. Prepared for U.S. Environmental Protection Agency (EPA), Municipal Environmental Research Laboratory, Cincinnati.
2. Andreadakis, A. D. (1987). "Design of multistage rotating biological contactors." J. Environ. Eng.JOEEDU0733-9372, 113(1), 199-205.
3. Andreottola, G., Foladori, P., Ragazzi, M., and Talàno, F. (2000). "Experimental comparison between MBBR and activated sludge system for the treatment of municipal wastewater." Water Sci. Technol.WSTED40273-1223, 41(4/5), 375-382.
4. Antonie, R., and Aacken, K. V. (1971). "Rotating discs fulfill dual wastewater role." Water Wastes Engineering, 8(1), 37-38.
5. Antonie, R. L. (1974). "Discussion - Evaluation of a rotating disc wastewater treatment plant." J. Water Pollut. Control Fed.JWPFA50043-1303, 46, 2792.
6. Antonie, R. L. (1976). Fixed biological surfaces - Wastewater treatment, Chemical Rubber Company, Cleveland.
7. Atkinson, B., and Davies, I. J. (1974). "The overall rate of substrate uptake (reaction) by microbial films. Part I - A biological rate equation." Trans. Inst. Chem. Eng.TICEAH0371-7496 52, 248-259.
8. Banerjee, G. (1997). "Hydraulics of bench-scale rotating biological contactor." Water Res.WATRAG0043-1354, 31(10), 2500-2510.
9. Benthack, C., Srinivasan, B., and Bonvin, D. (2001). "An optimal operating strategy for fixed-bed bioreactors used in wastewater treatment." Biotechnol. Bioeng.BIBIAU0006-3592, 72(1), 34-40.
10. Bickerstaff, G. F. (1997). Immobilization of enzymes and cells, G. F. Bickerstaff, ed., Humana, Clifton, U.K.
11. Bihan, Y. L., and Lessard, P. (2000). "Monitoring biofilter clogging: Biochemical characteristics of the biomass." Water Res.WATRAG0043-1354, 34(17), 4284-4294.
12. Bishop, P. L., Gibbs, J. T., and Cunningham, B. E. (1997). "Relationship between concentration and hydrodynamic boundary layer over biofilms." Environ. Technol.ENVTEV0959-3330, 18, 375-386.
13. Bisop, P. L., Zhang, T. C., and Fu, Y. C. (1995). "Effect of biofilm structure, microbial distribution and mass distribution on biodegradation processes." Water Sci. Technol.WSTED40273-1223, 31, 197-203.
14. Borghi, M. D., Palazzi, E., Parisi, F., and Ferraiolo, G. (1985). "Influence of process variables on the modeling and design of a rotating biological surface." Water Res.WATRAG0043-1354, 19, 573-580.
15. Borregaard, V. R. (1997). "Experience with nutrient removal in a fixed-film system at full-scale wastewater treatment plants." Water Sci. Technol.WSTED40273-1223, 36(1), 129-137.
16. Brinke-Seiferth, S., Behrendt, J., and Sekoulov, I. (1999). "The biofilm filter sequencing batch reactor (BFSBR)." Water Sci. Technol.WSTED40273-122310.1016/S0273-1223(99)00256-5, 39(8), 77-83.
17. Buelna, G., Bouchard, M. C., Kowal, S., and Lessard, P. (1993a). "Traitement simultané des effluents liquids et gazeux par le procédé BIOSOR." 640-P107900-11, CRIQ, Quebec.Buelna, G., Bouchard, M. C., Kowal, S., and Lessard, P. (1993a). "Traitement simultané des effluents liquids et gazeux par le procédé BIOSOR." 640-P107900-11, CRIQ, Quebec.
18. Buelna, G., Caouette, P., and Pigeon, S. (1993b). "Désodorisation des lisiers: Études comparative des principales technologies existantes selon une approche intégrée." Sciences Techniques l'eau, 26(4), 243-252.
19. Canler, J. P., and Perret, J. M. (1994). "Biological aerated filters: Assessment of the process based on the sewage treatment plants." Water Sci. Technol.WSTED40273-1223, 29(1011), 13-22.
20. Chai, X., Mi, Y., Yue, P. L., and Chen, G. (1999). "Bean curd wastewater treatment by membrane separation." Sep. Purif. Technol.SPUTFP1383-5866, 15, 175-180.
21. Chang, W.-S., Hong, S.-W., and Park, J. (2002). "Effect of zeolite media for the treatment of textile wastewater in a biological aerated filter." Process Biochem. (Oxford, U.K.)PBCHE51359-5113, 37, 693-698.
22. Choi, S.-C., and Oh, Y.-S. (2002). "Simultaneous removal of benzene, toluene and xylenes mixture by a constructed microbial consortium during biofiltration." Biotechnol. Lett.BILED30141-5492, 24, 1269-1275.
23. Chudoba, P., and Pujol, R. (1999). "A three-stage biofiltration process: Performances of a pilot plant." Water Sci. Technol.WSTED40273-1223, 38(8-9), 257-265.
24. Chui, P. C., Terashima, Y., Tay, J. H., and Ozaki, H. (1996). "A three-stage biofiltration process: Performances of a pilot plant." Water Sci. Technol.WSTED40273-1223, 34(1-2), 187-194.
25. Cloete, T. E., Smith, Z., and Saayman, G. (1999). "A cooling water system as a biofilm reactor for the treatment of municipal wastewater." Water SAWASADV0378-4738, 25(3), 371-375.
26. Cochet, N., Lebeault, J. M., and Vijayalakshmi, A. (1990). "Physicochemical aspects of cell adsorption." Wastewater treatment by immobilized cells, R. D. Tyagi and K. Vembo, eds., CRC press, Boston.
27. Cohen, Y. (2001). "Biofiltration - The treatment of fluids by microorganisms immobilized into the filter bedding material: A review." Bioresour. Technol.BIRTEB0960-8524, 77, 257-274.
28. Constance, J., Flore, L., and Caroline, M. (2003). "La biofiltration - Les principaux biofiltres brevetés en France." 〈http://www.isim.univ-montp2.fr〉 (March, 3, 2004) (in French).
29. Converse, J. C., and Tyler, E. J. (1994). "Renovating failing septic tank soil absorption systems using aerated pretreatment effluent." On-site wastewater treatment. Proc., 7th Int. Symp. on Individual and Small Community Sewage Treatment, Atlanta, American Society Agricultural Engineers, St. Joseph, Mich., 416-423.
30. Costerton, J. W., Lewandowski, Z., Caldwell, D. E., Korber, D. R., and Lappin-Scott, H. M. (1995). "Microbial biofilms." Annu. Rev. Microbiol.ARMIAZ0066-422710.1146/annurev.micro.49.1.711, 49, 711-745.
31. Crites, R., and Tchobanoglous, G. (1998). Small and decentralized wastewater management systems, McGraw-Hill, New York.
32. Daigger, G. T., and Harrison, J. R. (1987). "A comparison of trickling filter packing performance." J. Water Pollut. Control Fed.JWPFA50043-1303, 59, 679-685.
33. Danese, P. N., Pratt, L. A., and Kolter, R. (2000). "Exopolysaccharide production is required for development of Escherichia coli K-12 biofilm architecture." J. Bacteriol.JOBAAY0021-9193, 182(12), 3593-6.
34. Davey, M. E., and O'Toole., G. O. (2000). "Microbial biofilms: From ecology to molecular genetics." Microbiol. Mol. Biol. Rev.MMBRF71092-217210.1128/MMBR.64.4.847-867.2000, 64(4), 847-867.
35. Friedman, A. A., Robbins, L. E., and Woods, R. C. (1979). "Effect of disc rotational speed on biological contactor efficiency." J. Water Pollut. Control Fed.JWPFA50043-1303, 51(11), 2678-2690.
36. Gaeta, S. N. (1995). "The industrial development of polymeric membranes and membrane modules for reverse osmosis and ultrafiltration." Membrane technology: Applications to industrial wastewater treatment, A. Caetano, P. M. Norberta, D. E. Drioli, and H. Muntau, eds., Kluwer Academic, Dordrecht, Holland.
37. Gemeiner, P., Rexova, L., Svec, F., and Norrlow, O. (1994). "Natural and synthetic carriers suitable for immobilization of viable cells, active organelles and molecules." Immobilized biosystems, I. A. Veliky and R. J. C. McLean, eds., Chapman & Hall, London.
38. Gill, I., and Ballesteros, A. (2000). "Bioencapsulation within synthetic polymers (Part 1): Sol-gel encapsulated biologicals." Trends Biotechnol.TRBIDM0167-779910.1016/S0167-7799(00)01457-8, 18, 282-296.
39. Heijnen, J. J., Mulder, A., Waltevrede, R., Hols, J., and Van Leeuwen, H. (1991). "Large scale anaerobic-aerobic treatment of complex industrial wastewater using biofilm reactors." Water Sci. Technol.WSTED40273-1223, 23(7-9), 1427-1436.
40. Hinton, S. W., and Stensel, H. D. (1994). "Oxygen utilization of trickling filter biofilms." J. Environ. Eng.JOEEDU0733-9372, 120, 1284.
41. Huber, H. (1994). "In-drain system performance report." "Rep. on Intermittent Sand Filters." Huber Design Inc., Hancock, N.H. 〈http://www.septicsolutionstexas.com/Types.htm〉 (March, 9, 2004).
42. Iorio, G., and Calabro, V. (1995). "Biotechnological applications of membrane systems in the agro-food industry." Membrane technology: Applications to industrial wastewater treatment, A. Caetano, P. M. Norberta, D. E. Drioli, H. Muntau, eds. Kluwer Academic, Dordrecht, Holland.
43. Jowett, E. C., and McMaster, M. L. (1995). "On-site treatment using unsaturated absorbent biofilters." J. Environ. Qual.JEVQAA0047-2425, 24, 86-95.
44. Kariminiaae-Hamedaani, H. R., Kanda, K., and Kato, F. (2003). "Wastewater treatment with bacteria immobilized onto a ceramic carrier in an aerated system." J. Biosci. Bioeng.JBBIF61389-1723, 95(2), 128-132.
45. Kissel, J. C., McCarty, P. L. Street, R. L. (1984). "Numerical simulation of mixed-culture biofilm." Combust. Theory Modell.CTMOFQ1364-7830, 110(2), 393-411.
46. Klees, R., and Silverstein, J. (1992). "Improved biological nitrification using recirculation in rotating biological contactors." Water Sci. Technol.WSTED40273-1223, 26, 545-553.
47. Koch, B., Ostermann, M., Hoke, H., and Hempel, D.C. (1991). "Sand and activated carbon as biofilm carriers for microbial degradation of phenol and nitrogen containing aromatic compounds." Water Sci. Technol.WSTED40273-1223, 25(1), 1-8.
48. Kolot, F. B., (1988). Immobilized microbial systems: Principles, techniques and industrial applications, E. Robert, ed. Krieger, New York.
49. Kreft, J. U., and Wimpenny, J. W. T. (2001). "Effect of EPS on biofilm structure and function as revealed by an individual based model of biofilm growth." Water Sci. Technol.WSTED40273-1223, 43(6), 135-141.
50. Lazarova, V., and Manem, J. (1994). "Advances in biofilm aerobic reactors ensuring effective biofilm activity control." Water Sci. Technol.WSTED40273-1223, 29(10-11), 319-327.
51. Lin, S. D., Schnepper, D. H., and Evans, R. L. (1986). "A close look at change of BOD5 in an RBC system." J. Water Pollut. Control Fed.JWPFA50043-1303, 58, 757.
52. Livingston, A. G., Freitas dos Santos, L. M., Pavasant, P., Pistikopoulos, E. N., and Strachan, L. F. (1996). "Detoxification of industrial wastewaters in an extractive membrane bioreactor." Water Sci. Technol.WSTED40273-1223, 33(3), 1-8.
53. Luonsi, A., Laitinenb, N., Beyef, K., Levben, E., Poussadea, Y., and Nystrom, M. (2002). "Separation of CTMP mill-activated ceramic membranes." DesalinationDSLNAH0011-9164, 146, 399-404.
54. Madigan, M. T., Martinko, J. M., and Parker, J. (1997). Brock, biology of microorganisms, 8th Ed., Prentice-Hall, Englewood Cliffs, N.J.
55. Manohar, S., and Karegoudar, T. B. (1998). "Degradation of naphthalene by cells of Pseudomonas sp. strain NGK 1 immobilized in alginate agar and polyacrylamide." Appl. Microbiol. Biotechnol.AMBIDG0175-7598, 49, 785-792.
56. Menoud, P., Wong, C. H., Robinson, H. A., Farquhar, A., Barford, J. P., and Barton, G. W. (1999). "Simultaneous nitrification and denitrification using Siporax packing." Water Sci. Technol.WSTED40273-1223, 40(4-5), 153-160.
57. Metcalf and Eddy (2003). Wastewater engineering-Treatment and reuse, 4th Ed., G. Tchobanoglous, F. L. Burton, and H. D. Stensel eds., Mc Graw-Hill, New York, 888-893.
58. Moslemy, P., Neufeld, R. J., and Guiot, S. R. (2002). "Biodegradation of gasoline by gellan gum-encapsulated bacterial cells." Biotechnol. Bioeng.BIBIAU0006-359210.1002/bit.10358, 80(2), 175-184.
59. Nikolov, L., Karamanev, D., Penev, T., and Dmitrov, D. (1990). "Full scale inverse fluidized bed biofilm reactor for wastewater treatment." Proc., 2nd Inter. Biotechnology Conf., Seoul, Korea, 12.
60. Ødegaard, H. (2000). "Advanced compact wastewater treatment based on coagulation and moving bed biofilm processes." Water Sci. Technol.WSTED40273-1223, 42(12), 33-48.
61. Orive, G., Hernández, R. M., Gascón, A. R., Igartua, M., and Pedraz, J. L. (2002). "Encapsulated cell technology: From research to market." Trends Biotechnol.TRBIDM0167-7799, 20(9), 382-387.
62. O'Toole, G. A., Kaplan, H., and Kolter, R. (2000). "Biofilm formation as microbial development." Annu. Rev. Microbiol.ARMIAZ0066-422710.1146/annurev.micro.54.1.49, 54, 49-79.
63. Ottengraf, S. P. P. (1986). "Exhaust gas purification." Biotechnology, H. J. Rehm and G. Reed, eds. VCH, Weinheim, Germany, 427-452.
64. Paje, M. L., Marks, P., and Couperwhite, I. (1998). "Degradation of benzene by a Rhodococcus sp. using immobilized cell systems." World J. Microbiol. Biotechnol.WJMBEY0959-3993, 14, 675-680.
65. Paolini, A. E. (1986). "Effect of biomass on oxygen transfer on RBC system." J. Water Pollut. Control Fed.JWPFA50043-1303, 58(4), 306-311.
66. Parker, D. S., and Bratby, J. R. (2001). "Review of two decades of experience with TF/SC process." J. Environ. Eng.JOEEDU0733-937210.1061/(ASCE)0733-9372(2001)127:5(380), 127(5), 380-387.
67. Patwardhan, A. W. (2003). "Rotating biological contactors: A review." Ind. Eng. Chem. Res.IECRED0888-5885, 42, 2035-2051.
68. Pederson, K. (1982). "Method for studying microbial biofilm in flowing water system." Appl. Environ. Microbiol.AEMIDF0099-2240, 43, 6.
69. Perry, J. H. (1997). Chemical engineer's handbook, 7th Ed., McGraw-Hill, New York.
70. Pineau, M., and Lessard, P. (1994). "Procédés de biofiltration et applications au Québec." Sciences Techniques l'Eau, 27(1), 13-16 (in French).
71. Poujoulat, G. (1916). Apparatus for the purification of sewage. French Patent, No. 478,669.
72. Ramirez-Lopez, E., Corona-Hernandez, J., Dendooven, L., Rangel, P., and Thalasso, F. (2003). "Characterization of five agricultural by-products as potential biofilter carriers." Bioresour. Technol.BIRTEB0960-8524, 88, 259-263.
73. Rep. No. Projet 333, Consortium PCRB, "Report of performance assays and verification of process." (1992). Rep. No. RP-39-44, Quebec Urban Community, Wastewater Treatment Plant, Québec.
74. Rittmann, B. E., Trinet, F., Amar, D., and Chang, H. T. (1992). "Measurement of activity of a biofilm: Effects of surface loading and detachment on a three phase liquid fluidized bed reactor." Water Sci. Technol.WSTED40273-1223, 26(3-4), 585-594.
75. Roberts, J. A., Sutton, P. M., and Mishra, P. N. (2000). "Application of the membrane biological reactor system for combined sanitary and industrial wastewater treatment." Int. Biodeter. Biodegrad.ZZZZZZ0964-8305, 46, 37-42.
76. Rodgers, M., and Burke, D. (2001). "Carbonaceous oxidation using a new vertically moving biofilm system." Environ. Technol.ENVTEV0959-3330, 22, 673-678.
77. Rodgers, M., and Burke, D. (2002). "Nitrogen removal using a vertically moving biofilm system." Water Sci. Technol.WSTED40273-1223, 47(1), 71-76.
78. Rodgers, M., Zhan, X.-M., and Casey, A. (2003a). "Ammonium removal using a vertically moving biofilm system." J. Environ. Sci. Health, Part A: Toxic/Hazard. Subst. Environ. Eng.JATEF91093-4529, 38, 2483-2494.
79. Rodgers, M., Zhan, X.-M., and Gallagher, B. (2003b). "A pilot plant study using a vertically moving biofilm process to treat municipal wastewater." J. Environ. Sci. Health, Part A: Toxic/Hazard. Subst. Environ. Eng.JATEF91093-4529, 89, 139-143.
80. Rodgers, M., Zhan, X.-M. and Casey, A. (2004). "Oxygen transfer and industrial wastewater treatment efficiency of a vertically moving biofilm system." Water, Air, Soil Pollut.WAPLAC0049-6979, 151, 165-178.
81. Rousseau, P. (1994). "Mise en route d'une station de traitement des eaux usées par biofiltration a lit ruisselant." Sciences Techniques l'Eau, 27(1), 39-50 (in French).
82. Rusten, B., Odegaard, H., and Lundar, A. (1992). "Treatment of dairy wastewater in a novel moving bed biofilm reactor." Water Sci. Technol.WSTED40273-1223, 26(3-4), 703-711.
83. Saggy, M., and Kott, Y. (1990). "Efficiency of RBC in removing pathogenic bacteria from domestic sewage." Water Res.WATRAG0043-1354, 24, 1125-1128.
84. Savage, A. J. and Tyrrel, S. F. (2005). "Compost liquor bioremediation using waste materials as biofiltration media." Bioresour. Technol.BIRTEB0960-8524, 96, 557-564.
85. Scott, C. D. (1987). "Immobilized cells: A review of recent literature." Enzyme Microb. Technol.EMTED20141-0229, 9(2), 66-72.
86. Senan, R. C., Shaffiqu, T. S., Roy, J. J., and Abraham, T. E. (2003). "Aerobic degradation of a mixture of azo dyes in a packed bed reactor having bacteria-coated laterite pebbles." Biotechnol. Prog.BIPRET8756-7938, 19, 647-651.
87. Senthilnathan, P. R., and Ganczarczyk, J. J. (1990). "Application of biomass carriers in activated sludge process." Wastewater treatment by immobilized cells, R. D. Tyagi, and K. Vembu, eds., CRC, Boca Raton, Fla.
88. "Sewage treatment and disposal of town refuse." (1884). Engineering, 30, 519.
89. Stenquist, R. J., and Kelly, R. A. (1980). "Converting rock trickling filters to plastic packing - Design and performance." EPA-600/2-80-120, U.S. Environmental Protection Agency, Washington, D.C.
90. Stewart, N. T., Boardman, G. D., and Helfrich, L. A. (2006). "Treatment of rainbow trout (Oncorhynchus mykiss) raceway effluent using baffled sedimentation and artificial substrates." Aquacultural Eng., 35, 166-178.
91. Strigle, R. F. Jr. (1987). Random packings and packed towers. Gulf, Houston.
92. Strom, P. F., and Chung, J. C. (1985). "The rotating biological contactor for wastewater treatment." Advances in biotechnological processes, A. Mizrahi and A. L. V. Wezel, eds., Alan R. Liss, Inc., New York.
93. Sumino, T., Nakamura, H., and Mori, N. (1993). "Development of a higher-efficiency wastewater treatment system using immobilized microorganisms." Industrial application of immobilized biocatalysts, A. Tanaka, T. Tosa, and T. Kobayashi, eds., Marcel Dekker, New York, 377-391.
94. Sumino, T., Nakamura, H., Mori, N., Kawaguchi, Y., and Tada, M. (1992). "Immobilization of nitrifying bacteria in porous pellets of urethane gel for removal of ammonium nitrogen from wastewater." Appl. Microbiol. Biotechnol.AMBIDG0175-7598, 36, 556-560.
95. Sutherland, I. W. (2001). "Exopolysaccharides in biofilms, flocs and related structures." Water Sci. Technol.WSTED40273-1223, 43(6), 77-86.
96. Sutton, P. M., and Mishra, P. N. (1990). "Fluidized bed biological wastewater treatment: Effects of scale-up on system performance." Water Sci. Technol.WSTED40273-1223, 22(1/2), 419-426.
97. Sutton, P. M., and Mishra, P. N. (1996). "The membrane biological reactor for industrial wastewater treatment and bioremediation." Biotechnology in industrial waste treatment and bioremediation, R. F. Hickey and G. L. Smith, eds., CRC Press, Boca Raton, Fla.
98. Suzuki, T., Yamaguchi, T., and Ishida, M. (1998). "Immobolization of Prototheca zopfi in calcium-alginate beads for the degradation of hydrocarbons." Process Biochem. (Oxford, U.K.)PBCHE51359-5113, 33, 541-546.
99. Talbot, P., Bélanger, G., Pelletier, M., Laliberté, G., and Arcand, Y. (1996). "Development of a biofilter using an organic medium for onsite wastewater treatment." Water Sci. Technol.WSTED40273-1223, 34(3-4), 435-441.
100. Tam, N. F. Y., and Wong, Y. S. (2000). "Effect of immobilized microalgal bead concentrations on wastewater nutrient removal." Environ. Pollut.ENPOEK0269-7491, 107, 145-151.
101. Tampion, J., and Tampion, M. D. (1987). Immobilized cells: Principles and application, Cambridge University Press, Cambridge, U.K.
102. Tang, W. T., Wisecarver, K., and Liang-Shih, F. (1987). "Dynamics of a draft tube gas-liquid-solid fluidized bed bioreactor for phenol degradation." Chem. Eng. Sci.CESCAC0009-2509, 42(9), 2123-2134.
103. Tarallo, S., Bucher, H. M., Ballard, P. T., and Pujol, R. (2004). "Upgrading and expanding wastewater treatment plants using a two stage upflow biofiltration process." Technical papers, 〈http://www.ondeo-degremont-usa.com〉 (March, 8, 2004).
104. Trinet, F., Heim, R., Amar, D., Chang, H. T., and Rittmann, B. E. (1991). "Study of biofilm and fluidization in a three phase liquid fluidized bed reactor." Water Sci. Technol.WSTED40273-1223, 23(7-9), 1347-1354.
105. Turner, C. D., Koehmstedt, M. J., and Gallagher, J. (1990). "A comparison of coupled upflow and coupled downflow fluid bed reactors treating synfuel wastewater." Proc., 44th Purdue Industrial Waste Conf. Proc., Lewis, Chelsea, Mich., 475-484.
106. Viotti, P., Eramo, B., Boni, M. R., Carucci, A., Leccese, M., and Sbaffoni, S. (2002). "Development and calibration of a mathematical model for the simulation of the biofiltration process." Adv. Environ. Res.ZZZZZZ1093-0191, 7, 11-33.
107. Wasche, S., Horn, H., and Hempel, D. C. (2000). "Mass transfer phenomenon in biofilm systems." Water Sci. Technol.WSTED40273-1223, 41(4), 357-360.
108. Water Environment Federation (WEF. (2000). Aerobic fixed growth reactors; Special publication, WEF, Alexandria, VI.Water Environment Federation (WEF. (2000). Aerobic fixed growth reactors; Special publication, WEF, Alexandria, VI.
109. Weigand, P. (1900). Varhahren zur Biologischen Reinigung von Abwassern. German Patent, No. 135,755.
110. Weir, S. C., Dupuis, S. P., Providenti, M. A., Lee, H., and Trevors, J. T. (1995). "Nutrient-enhanced survival of and phenanthrene mineralization by alginate-encapsulated and free Pseudomonas sp. UG14Lr cells in creosote-contaminated soil slurries." Appl. Microbiol. Biotechnol.AMBIDG0175-7598, 43, 946-951.
111. Xie, W., Wang, Q., Songa, G., Kondo, M., Teraoka, M., Ohsumic, Y., and Ogawa, H. I. (2004). "Upflow biological filtration with floating filter media." Process Biochem. (Oxford, U.K.)PBCHE51359-5113, 39, 765-770.
112. Yamamoto, K., Hiasa, H., Mahmood, T., and Matsuo, T. (1989). "Direct solid-liquid separation using hollow fiber membranes in an activated sludge aeration tank." Water Sci. Technol.WSTED40273-1223, 21(4/5), 43-54.
113. Yang, S., and Lewandowski, Z. (1995). "Measurement of local mass transfer coefficient in biofilms." Biotechnol. Bioeng.BIBIAU0006-3592, 48, 737-744.
114. Zeghal, S., Puznava, N., Subra, J. P., and Sauvegrain, P. (1998). "Process control for nutrients removal using lamella sedimentation and floating media filtration." Water Sci. Technol.WSTED40273-122310.1016/S0273-1223(98)00408-9, 38(3), 227-235.
115. Zhang, T. C., and Bishop, P. L. (1994). "Experimental determination of the dissolved oxygen boundary layer and mass transfer resistance near the fluid-biofilm interface." Water Sci. Technol.WSTED40273-1223, 30(11), 47-58.
116. Zhao, X., Doh, K., Criddle, C. S., and Voice, T. C. (1997). "Accumulation of metabolic intermediates during shock-loads in biological fluidized bed reactors." J. Environ. Eng.JOEEDU0733-937210.1061/(ASCE)0733-9372(1997)123:12(1185), 123(12), 1185-1193.