page150 |
Previous | 1 of 8 | Next |
|
|
Loading content ...
Separation and Materials Balance of Solids Fractions in Sewage J. V. HUNTER, Lecturer H. HEUKELEKIAN, Professor and Chairman Department of Sanitation Rutgers, the State University New Brunswick, New Jersey It has been long recognized that a more complete knowledge of the organic constituents of sewage would be of considerable value both in the study of the various biological treatment processes and in understanding the pollu- tional characteristics of sewage. Up to 1959, however, no comprehensive studies of the organic composition of sewage had been reported in the literature. Most of the work reported up to this time involved either determination of welldefined groups such as the nitrogenous compounds (2) with special reference to the amino acids (8) (7), and the volatile fatty acids (7), or of compounds of particular interest, such as Indole and Skatole (6) and more recently, the presence of surface active agents (4). Two comprehensive analyses of sewage were reported in 1959, giving the organic constituents of an English domestic sewage (5), and the mineral and organic constituents of the particular matter in an American domestic sewage (3). Both outlined methods for the separation of sewage physically into three particulate and one soluble fraction, involving settling, centrification, and filtration. Unfortunately, in neither case was there any estimation as to the nature and the extent of the losses encountered during the processing of the sewage, except for losses involved in the concentration of the soluble fraction (5), and such information is necessary if the results obtained by such comprehensive analyses are to be validly interpreted. It is the purpose of these authors to extend the organic analyses of the particulate fractions (31, to include the soluble material, and to study simultaneously the nature and extent of the losses involved. The estimation of these losses and the information obtained on the general organic nature of the sewages studied are the subject of this report. SAMPLING AND PROCESSING The sampling procedure was arranged so that the material collected for analysis was as representative as possible of the sewage organics. To this end, 24-hr automatically composited samples were obtained from a predominantly domestic sewage source. Samples were obtained over two periods, the first representing the winter and spring of 1959; the second the fall and winter o f 1959-60. Sampling was so arranged that each day of the week received equal representation. The adequacy of the sampling procedure is apparent from examination of Table I. The similarity of characteristics revealed by examination of the composite sewages before processing reflects not only the fact that the sewage utilized over both periods were notably similar in nature, but also that the sampling procedure used was capable of revealing this similarity. The particulate sewage material was removed and dried according to the method of Heukelekian and Balmat (3). These particulates are divided into - 150 -
Object Description
Purdue Identification Number | ETRIWC196019 |
Title | Separation and materials balance of solids fractions in sewage |
Author |
Hunter, Joseph V., 1925- Heukelekian, H. (Hovhannes), 1899- |
Date of Original | 1960 |
Conference Title | Proceedings of the fifteenth Industrial Waste Conference |
Conference Front Matter (copy and paste) | http://earchives.lib.purdue.edu/cdm4/document.php?CISOROOT=/engext&CISOPTR=7908&REC=6 |
Extent of Original | p. 150-157 |
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 | 2009-06-04 |
Capture Device | Fujitsu fi-5650C |
Capture Details | ScandAll 21 |
Resolution | 300 ppi |
Color Depth | 8 bit |
Description
Title | page150 |
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 |
Capture Device | Fujitsu fi-5650C |
Capture Details | ScandAll 21 |
Transcript | Separation and Materials Balance of Solids Fractions in Sewage J. V. HUNTER, Lecturer H. HEUKELEKIAN, Professor and Chairman Department of Sanitation Rutgers, the State University New Brunswick, New Jersey It has been long recognized that a more complete knowledge of the organic constituents of sewage would be of considerable value both in the study of the various biological treatment processes and in understanding the pollu- tional characteristics of sewage. Up to 1959, however, no comprehensive studies of the organic composition of sewage had been reported in the literature. Most of the work reported up to this time involved either determination of welldefined groups such as the nitrogenous compounds (2) with special reference to the amino acids (8) (7), and the volatile fatty acids (7), or of compounds of particular interest, such as Indole and Skatole (6) and more recently, the presence of surface active agents (4). Two comprehensive analyses of sewage were reported in 1959, giving the organic constituents of an English domestic sewage (5), and the mineral and organic constituents of the particular matter in an American domestic sewage (3). Both outlined methods for the separation of sewage physically into three particulate and one soluble fraction, involving settling, centrification, and filtration. Unfortunately, in neither case was there any estimation as to the nature and the extent of the losses encountered during the processing of the sewage, except for losses involved in the concentration of the soluble fraction (5), and such information is necessary if the results obtained by such comprehensive analyses are to be validly interpreted. It is the purpose of these authors to extend the organic analyses of the particulate fractions (31, to include the soluble material, and to study simultaneously the nature and extent of the losses involved. The estimation of these losses and the information obtained on the general organic nature of the sewages studied are the subject of this report. SAMPLING AND PROCESSING The sampling procedure was arranged so that the material collected for analysis was as representative as possible of the sewage organics. To this end, 24-hr automatically composited samples were obtained from a predominantly domestic sewage source. Samples were obtained over two periods, the first representing the winter and spring of 1959; the second the fall and winter o f 1959-60. Sampling was so arranged that each day of the week received equal representation. The adequacy of the sampling procedure is apparent from examination of Table I. The similarity of characteristics revealed by examination of the composite sewages before processing reflects not only the fact that the sewage utilized over both periods were notably similar in nature, but also that the sampling procedure used was capable of revealing this similarity. The particulate sewage material was removed and dried according to the method of Heukelekian and Balmat (3). These particulates are divided into - 150 - |
Resolution | 300 ppi |
Color Depth | 8 bit |
Tags
Comments
Post a Comment for page150