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Dow Surfpac Pilot Study on Textile Waste DUANE W. SNYDER, Director of Research Crompton-Shenandoah Company, Inc. Waynesboro, Virginia INTRODUCTION The Crompton-Shenandoah Company plant is located on the South River, a tributary of the Shenandoah River in the Shenandoah Valley area of the Potomac River Basin. This plant is a textile dyeing and finishing unit producing finished corduroys, velvets and velveteens. The effluent from this operation as well as other industries and the municipality are discharged to the South River after having received varying degrees of treatment. Textile wastes as a group are considered one of the most difficult of industrial wastes to treat due to their vast fluctuations in chemical constituents, flow rates, and high volume. For a number of years efforts have been made toward pollution abatement in this area and substantial improvement in stream conditions has been made. The brief historical review which follows will show what conditions of stream improvement are being sought and why new efforts are being made toward this end. The South River is quite small having an average flow of 140 cfs during year of normal rainfall. The 10 yr recurring minimum natural flow is in the range of 26 cfs but with additions of ground water discharge from plants and municipality, this is increased to 52 cfs below Waynesboro. Some 15 yrs ago the total BOD load going to this stream was in excess of 10, 000 lb/day (1). At the present time the load stands at approximately 5, 300 lb/day. Assimilative capacity at 52 cfs to maintain a desired DO level of 3 ppm at the stream sag point, is calculated to be 3, 300 lb/BOD/day (1). It is desirable, therefore, to further reduce the total BOD load by 2, 000 lb from all sources so that the desired DO can be maintained during periods of extreme low flow. It should be noted that the present condition of the river is a result of continuing efforts on the part of all parties contributing to its pollution in complete cooperation with the Virginia State Water Control Board. Cooperative surveys of the river were made in 1948 after which all parties actively engaged in pollution abatement projects. The Crompton Company began intensive studies of its waste to develop effective means of treatment as well as to study the practicability of inplant process changes which might lead to pollution abatement. Along these lines a number of process changes were made substituting chemical compounds having low BOD values for those having high BOD values. The substitution of sodium carboxymethyl cellulose for starch as well as the complete elimination of the use of soap are examples of two of the major steps taken (2). Two large settling basins were installed for the purpose of removing precipitated dyestuffT lint, and other settable solids. These developments, while quite time consuming, eventually resulted in reducing the BOD load going to the river from this plant by 60 per cent. - 476 -
Object Description
Purdue Identification Number | ETRIWC196343 |
Title | Dow surfpac pilot study on textile waste |
Author | Snyder, Duane W. |
Date of Original | 1963 |
Conference Title | Proceedings of the eighteenth Industrial Waste Conference |
Conference Front Matter (copy and paste) | http://earchives.lib.purdue.edu/cdm4/document.php?CISOROOT=/engext&CISOPTR=10285&REC=1 |
Extent of Original | p. 476-482 |
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 | 2009-05-18 |
Capture Device | Fujitsu fi-5650C |
Capture Details | ScandAll 21 |
Resolution | 300 ppi |
Color Depth | 8 bit |
Description
Title | page 476 |
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 | Dow Surfpac Pilot Study on Textile Waste DUANE W. SNYDER, Director of Research Crompton-Shenandoah Company, Inc. Waynesboro, Virginia INTRODUCTION The Crompton-Shenandoah Company plant is located on the South River, a tributary of the Shenandoah River in the Shenandoah Valley area of the Potomac River Basin. This plant is a textile dyeing and finishing unit producing finished corduroys, velvets and velveteens. The effluent from this operation as well as other industries and the municipality are discharged to the South River after having received varying degrees of treatment. Textile wastes as a group are considered one of the most difficult of industrial wastes to treat due to their vast fluctuations in chemical constituents, flow rates, and high volume. For a number of years efforts have been made toward pollution abatement in this area and substantial improvement in stream conditions has been made. The brief historical review which follows will show what conditions of stream improvement are being sought and why new efforts are being made toward this end. The South River is quite small having an average flow of 140 cfs during year of normal rainfall. The 10 yr recurring minimum natural flow is in the range of 26 cfs but with additions of ground water discharge from plants and municipality, this is increased to 52 cfs below Waynesboro. Some 15 yrs ago the total BOD load going to this stream was in excess of 10, 000 lb/day (1). At the present time the load stands at approximately 5, 300 lb/day. Assimilative capacity at 52 cfs to maintain a desired DO level of 3 ppm at the stream sag point, is calculated to be 3, 300 lb/BOD/day (1). It is desirable, therefore, to further reduce the total BOD load by 2, 000 lb from all sources so that the desired DO can be maintained during periods of extreme low flow. It should be noted that the present condition of the river is a result of continuing efforts on the part of all parties contributing to its pollution in complete cooperation with the Virginia State Water Control Board. Cooperative surveys of the river were made in 1948 after which all parties actively engaged in pollution abatement projects. The Crompton Company began intensive studies of its waste to develop effective means of treatment as well as to study the practicability of inplant process changes which might lead to pollution abatement. Along these lines a number of process changes were made substituting chemical compounds having low BOD values for those having high BOD values. The substitution of sodium carboxymethyl cellulose for starch as well as the complete elimination of the use of soap are examples of two of the major steps taken (2). Two large settling basins were installed for the purpose of removing precipitated dyestuffT lint, and other settable solids. These developments, while quite time consuming, eventually resulted in reducing the BOD load going to the river from this plant by 60 per cent. - 476 - |
Resolution | 300 ppi |
Color Depth | 8 bit |
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