1.2.3.4.5.

©

Effect Of Sinusoidal Perturbations Of Feed Concentration On

Multi-Substrate Carbon Oxidation And Nitrification Process In

An Upflow

Packed-Bed Biofilm Reactor

Beg, SA; Hassan, MM; Chaudhry, MAS

ELSEVIER SCIENCE SA LAUSANNE, CHEMICAL ENGINEERING JOURNAL; pp: 165-

174; Vol: 65

King Fahd University of Petroleum & Minerals

http://www.kfupm.edu.sa

Summary

The performance of an upflow packed bed biofilm reactor has been analyzed under

multi-substrate limitation by considering simultaneous carbon oxidation and

nitrification reactions. For an inlet concentration of 200 mg l(-1) of NH4+-N and 50

mg l(-1) of methanol, the results show that organic substrate is consumed very rapidly

near the inlet of the reactor while most of the NH4+-N is converted in the central

region of the reactor. When the inlet concentration of methanol is subjected to

sinusoidal variation, the exit concentration of NH4+-N also follows a sinusoidal

pattern although its inlet concentration was subjected to step input. However, the

methanol exit concentration exhibits the typical step input response when the inlet

NH4+-N concentrations subjected to sinusoidal variation. The concentration profiles

within the biofilm reactor show that oxygen is a limiting component at the middle of

the reactor when both methanol and NH4+-N inlet concentrations follow sinusoidal

variation. (C) 1997 Elsevier Science S.A.

References:ALEEM MIH, 1970, ANNU REV PLANT PHYS, V21, P67ANTONIE RL, 1974, WAT SWG WKS, V121, P54ANTONIE RL, 1974, WATER SEWAGE WORKS, V121, P44ATIQULLAH M, 1990, CHEM ENG J, V44, B57BARNES D, 1983, BIOL CONTROL NITROGE

Copyright: King Fahd University of Petroleum & Minerals;http://www.kfupm.edu.sa

6.7.8.9.10.11.12.13.14.15.16.17.18.19.20.21.22.23.24.25.26.27.28.29.30.31.32.33.34.35.36.37.38.39.40.41.42.43.44.45.46.47.48.49.50.

©

BEG SA, 1985, CHEM ENG J BIOCH ENG, V30, B1BEG SA, 1987, WATER RES, V21, P191BEG SA, 1995, INT J ENVIRON STUD, V49, P31BEG SA, 1995, J CHEM TECHNOL BIOT, V64, P367BEG SA, 1996, CHEM ENG TECHNOL, V19, P43BHASKAR GV, 1991, CAN J CHEM ENG, V69, P544BORZANI W, 1976, BIOTECHNOL BIOENG, V18, P623CHEN GH, 1989, WATER SCI TECHNOL, V21, P791COONEY CL, 1976, BIOTECHNOL BIOENG, V18, P189CRAWFORD PM, 1980, 1 NAT S WORKSH RBC TFOCHT DD, 1975, ADV APPL MICROBIOL, V19, P153GILLEY JW, 1967, BIOTECHNOL BIOENG, V9, P617GOLLA PS, 1990, J ENVIRON ENG-ASCE, V116, P829GONENC E, 1990, WATER RES, V24, P499GRADY CPL, 1980, BIOL WASTEWATER TREAHAO O, 1975, WATER SEWAGE WORKS, V122, P48HAO O, 1975, WATER SEWAGE WORKS, V122, P70HARREMOES P, 1976, J WATER POLLUT CONTR, V48, P377HARREMOES P, 1982, WATER SCI TECHNOL, V14, P167HASSAN MM, 1987, CHEM ENG J, V36, B15JENNINGS PA, 1976, BIOTECHNOL BIOENG, V18, P1249KIM BR, 1989, WATER RES, V23, P1491KUENEN JG, 1988, NITROGEN SULPHUR CYC, P161MANEM JA, 1992, J AM WATER WORKS ASS, V84, P147MCHARNESS DD, 1975, J WAT POLLUT CONTROL, V47, P291MEUNIER AD, 1981, J ENVIRON ENG D ASCE, V107, P307MURPHY KL, 1977, J WATER POLLUT CONTR, V49, P549ODEGAARD H, 1980, 1 NAT S WORKSH RBC TPAINTER HA, 1970, WATER RES, V4, P393PAINTER HA, 1986, NITRIFICATION, P185PRAKASAM TB, 1972, WATER RES, V6, P859PRAKASAM TBS, 1974, P 29 IND WAST C PURD, P497SCHMIDT EL, 1982, NITROGEN AGR SOILS, P253SHARMA B, 1977, WATER RES, V11, P897SKOWLUND CT, 1989, BIOTECHNOL BIOENG, V33, P164SRNA RF, 1975, J WATER POLLUT CONTR, V47, P472STRAND SE, 1986, J ENVIRON ENG-ASCE, V112, P785SUIDAN MT, 1989, WATER RES, V23, P837TORPEY WH, 1972, P 6 IND WAST C WPR, P405WALLACE W, 1969, BIOL REV CAMBRIDGE, V44, P359WANNER O, 1984, WATER SCI TECHNOL, V17, P27WATANABE Y, 1992, WATER SCI TECHNOL, V26, P511WESTBERG LN, 1969, WATER RES, V3, P613WONGCHONG GM, 1975, AICHE S SER, V71, P70YOUNG JC, 1969, J WATER POLLUTION CO, V41, R160

Copyright: King Fahd University of Petroleum & Minerals;http://www.kfupm.edu.sa

51.

©

ZINES DO, 1971, BIOTECHNOL BIOENG, V13, P293

For pre-prints please write to: abstracts@kfupm.edu.sa

Copyright: King Fahd University of Petroleum & Minerals;http://www.kfupm.edu.sa