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EFFECT OF FEED CONCENTRATION ON FORMATION AND UTILIZATION OF MICROBIAL PRODUCTS DURING AEROBIC TREATMENT A. F. Gaudy, Jr., Professor Y. K. Chen, Graduate Student (Deceased) Department of Civil Engineering University of Delaware Newark, Delaware 19716 T. S. Manickam, Sanitary Engineer N.Y. State Health Department Albany, New York 12237 P. C. D'Adamo, Environmental Engineer Tatman and Lee, Consulting Engineers Wilmington, Delaware 19801 M. P. Reddy, Environmental Engineer Orange County Public Utility Company Orlando, Florida 32801 INTRODUCTION More than four decades have passed since Monod [1] published his empirical equation (Equation 1) relating specific growth rate, u, to substrate concentration for noninhibitory carbon sources. (ks + s) H = l»m» iT-*-? (»> It has been over three decades since Monod [2] and Novick and Szilard [3] independently published the equations and concepts which have come to be known as the theory of continuous culture (see Equation 2 for substrate concentration). c K< <D + kd> (2) "max - (D + kd) These equations were elaborated upon and extended for cell recycle systems by Herbert and his coworkers in the 1950's and 1960's [4,5] (see Equation 3 for substrate). Originally Equations 2 and 3 did not contain the term s = K, [D(l -t- q - etc) + kd] fmix - [0(1 + a - ac) + kd] for cell decay, kd. In later years it was found that a better prediction of biomass output, Xw, resulted if this term were included. These concepts have been of interest to both basic and applied researchers, especially to environmental engineers interested in biological treatment of organic wastewaters. Studies have been conducted to test the applicability of the theory of continuous culture to heterogeneous microbial populations of sewage origin growing on simple sugars in once-through chemostats. Results of studies in our laboratories showed that Equations 1 and 2 were applicable to such populations [6,7]. In these continuous flow studies substrate was measured both as COD and as carbohydrate, and it was observed that the effluent COD was, except at high dilution rates approaching wash-out, very low, although approximately 10 times higher than effluent carbohydrate. Thus, there was evidence that metabolic products were elaborated by the cells either as products of cell degradation or as products 48
Object Description
Purdue Identification Number | ETRIWC198606 |
Title | Effect of feed concentration on formation and utilization of microbial product during aerobic treatment |
Author |
Gaudy, Anthony F. Chen, Y. K. Manickam, T. S. D'Adamo, Peter C. Reddy, M. P. |
Date of Original | 1986 |
Conference Title | Proceedings of the 41st Industrial Waste Conference |
Conference Front Matter (copy and paste) | http://e-archives.lib.purdue.edu/u?/engext,37786 |
Extent of Original | p. 48-58 |
Collection Title | Engineering Technical Reports Collection, Purdue University |
Repository | Purdue University Libraries |
Rights Statement | Digital object copyright Purdue University. All rights reserved. |
Language | eng |
Type (DCMI) | text |
Format | JP2 |
Date Digitized | 2009-07-13 |
Capture Device | Fujitsu fi-5650C |
Capture Details | ScandAll 21 |
Resolution | 300 ppi |
Color Depth | 8 bit |
Description
Title | page 48 |
Collection Title | Engineering Technical Reports Collection, Purdue University |
Repository | Purdue University Libraries |
Rights Statement | Digital copyright Purdue University. All rights reserved. |
Language | eng |
Type (DCMI) | text |
Format | JP2 |
Capture Device | Fujitsu fi-5650C |
Capture Details | ScandAll 21 |
Transcript |
EFFECT OF FEED CONCENTRATION ON FORMATION AND
UTILIZATION OF MICROBIAL PRODUCTS DURING
AEROBIC TREATMENT
A. F. Gaudy, Jr., Professor
Y. K. Chen, Graduate Student (Deceased)
Department of Civil Engineering
University of Delaware
Newark, Delaware 19716
T. S. Manickam, Sanitary Engineer
N.Y. State Health Department
Albany, New York 12237
P. C. D'Adamo, Environmental Engineer
Tatman and Lee, Consulting Engineers
Wilmington, Delaware 19801
M. P. Reddy, Environmental Engineer
Orange County Public Utility Company
Orlando, Florida 32801
INTRODUCTION
More than four decades have passed since Monod [1] published his empirical equation (Equation 1)
relating specific growth rate, u, to substrate concentration for noninhibitory carbon sources.
(ks + s)
H = l»m» iT-*-? (»>
It has been over three decades since Monod [2] and Novick and Szilard [3] independently published
the equations and concepts which have come to be known as the theory of continuous culture (see
Equation 2 for substrate concentration).
c K< |
Resolution | 300 ppi |
Color Depth | 8 bit |
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