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The Biochemical Treatability Index (BTI) Concept C. HUGH THOMPSON, Sanitary Engineering Specialist Technical Service and Development The Dow Chemical Co. Midland, Michigan D. W. RYCKMAN, Professor JAMES C. BUZZELL, JR., Assistant Professor Department of Civil and Environmental Engineering Washington Universtiy St. Louis, Missouri INTRODUCTION The need for the development of an index of the treatability of organic chemicals was documented by a President's Science Advisory Committee. The Committee's report states that the, ". . . development of a method for assigning a numerical index of chemical pollution to water samples" be initiated (1). Such an index would aid engineers, scientists, lawyers, management, as well as others, in the decision making and the communication of information with regard to the relative behavior of organic chemicals. Industry has indicated support of a concept of indexing as a fair basis of comparison (2). The index concept reported in this study is designed to be useful as a common yardstick of the degree of treatment feasible. It is conceivable that this concept, using the technique developed in this study or a modification of it, would be useful as a basis of decision in either industrial or municipal waste treatment operation. At present, many reported results vary widely (3) depending on the techniques used. The need for uniform, standardized techniques of measuring bio- degradability is clear. Conceptually, Figure 1 demonstrates that parameters were measured for each organic chemical exposed to lyophilized activated sludge which had been revived and the responses evaluated relative to a primary standard into a ranking index (BTI) of biodegradability. PURPOSE OF STUDY The initial purpose of this investigation was to develop an index to predict the relative biological treatability of organic chemicals under well-defined conditions. The purpose of this paper is to submit this concept of indexing for discussion and evaluation by the profession. The biochemical treatability index (BTI) was designed with the following five criteria in mind: 1) The technique should be amenable to most organic chemicals; 2) The treatment system should be well-defined and simulate a secondary aerobic biological process; 3) The results should be reproducible and reliable;4) The tests should be economically feasible; and 5) The technique should be usable by individuals of varied backgrounds. -413-
Object Description
Purdue Identification Number | ETRIWC1969027 |
Title | Biochemical treatability index (BTI) concept |
Author |
Thompson, C. Hugh Ryckman, D. W. Buzzell, J. C. |
Date of Original | 1969 |
Conference Title | Proceedings of the 24th Industrial Waste Conference |
Conference Front Matter (copy and paste) | http://earchives.lib.purdue.edu/u?/engext,16392 |
Extent of Original | p. 413-435 |
Series | Engineering extension series no. 135 |
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 | 2009-05-21 |
Capture Device | Fujitsu fi-5650C |
Capture Details | ScandAll 21 |
Resolution | 300 ppi |
Color Depth | 8 bit |
Description
Title | page 413 |
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 | The Biochemical Treatability Index (BTI) Concept C. HUGH THOMPSON, Sanitary Engineering Specialist Technical Service and Development The Dow Chemical Co. Midland, Michigan D. W. RYCKMAN, Professor JAMES C. BUZZELL, JR., Assistant Professor Department of Civil and Environmental Engineering Washington Universtiy St. Louis, Missouri INTRODUCTION The need for the development of an index of the treatability of organic chemicals was documented by a President's Science Advisory Committee. The Committee's report states that the, ". . . development of a method for assigning a numerical index of chemical pollution to water samples" be initiated (1). Such an index would aid engineers, scientists, lawyers, management, as well as others, in the decision making and the communication of information with regard to the relative behavior of organic chemicals. Industry has indicated support of a concept of indexing as a fair basis of comparison (2). The index concept reported in this study is designed to be useful as a common yardstick of the degree of treatment feasible. It is conceivable that this concept, using the technique developed in this study or a modification of it, would be useful as a basis of decision in either industrial or municipal waste treatment operation. At present, many reported results vary widely (3) depending on the techniques used. The need for uniform, standardized techniques of measuring bio- degradability is clear. Conceptually, Figure 1 demonstrates that parameters were measured for each organic chemical exposed to lyophilized activated sludge which had been revived and the responses evaluated relative to a primary standard into a ranking index (BTI) of biodegradability. PURPOSE OF STUDY The initial purpose of this investigation was to develop an index to predict the relative biological treatability of organic chemicals under well-defined conditions. The purpose of this paper is to submit this concept of indexing for discussion and evaluation by the profession. The biochemical treatability index (BTI) was designed with the following five criteria in mind: 1) The technique should be amenable to most organic chemicals; 2) The treatment system should be well-defined and simulate a secondary aerobic biological process; 3) The results should be reproducible and reliable;4) The tests should be economically feasible; and 5) The technique should be usable by individuals of varied backgrounds. -413- |
Resolution | 300 ppi |
Color Depth | 8 bit |
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