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OLS Field Name OLS Field Data
Main Title Testing solids-settling apparatuses for design and operation of wet-weather flow solids/liquid separation processes [electronic resource] /
Author O'Connor, T. P. ; Fischer, D. ; Field, R. ; Cigana, J. ; Gagne, B. ;
Other Authors
Author Title of a Work
O'Connor, Thomas P.
CORP Author National Risk Management Research Lab., Edison, NJ. Water Supply and Water Resources Div. ;John Meunier Inc., Saint-Laurent (Quebec).
Publisher U.S. Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory,
Year Published 2002
Report Number EPA/600/R-02/090; CRADA-136-96
Stock Number PB2003-107723
Subjects Sampling. ; Runoff.
Additional Subjects Test methods ; Solid wastes ; Equipment ; Separation processes ; Sampling ; Design ; Quality control ; Velocity ; Wet-weather flow ; Field test
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=P1001O3N.PDF
Abstract http://www.epa.gov/nrmrl/pubs/600r02090/600r02090.htm
http://www.epa.gov/nrmrl/pubs/600r02090/600R02090.pdf
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB2003-107723 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 10/24/2003
Collation 1 online resource ([160] p.) : ill., charts, digital, PDF file.
Abstract
This study was a side-by-side comparison of two settling column tests: one traditional and one new. The newer apparatus was developed by the Centre d'Enseignement et de Recherche pour la Gestion des Ressources Naturelles et de l'Environnement (CERGRENE) of France and uses several small columns to sequentially measure particle-settling velocities. The new apparatus was compared with a larger, more traditional column, which has been widely used in the past as a research and academic tool, but it is difficult to transport and set up in a field location due to its size. The newer settling testing method was thought to be more amenable to field use because of ease of transport and sampling and the limited number of samples generated. The study was conducted in three phases: fabrication and preliminary testing, laboratory testing, and field testing. Equipment for the two testing methods was fabricated and laboratory tested and preliminary evaluations were made. Laboratory tests were conducted with two well characterized settling media, microsand and clay soil in order to measure suspended solid (SS) concentrations and develop settling distributions of known substances in the columns prior to testing actual WWF which exhibits variable SS concentrations and settling distributions. Field tests were conducted at a combined sewer control structure to compare the performance of the two columns when filled with combined sewage. A summary of the performance as measured by predicted percent removal of both columns for 15 laboratory tests and 3 field tests is presented, as well as a comparison of the advantages and disadvantages of the two methods. The newer testing method (CERGRENE) did not perform up to the anticipated theoretical expectations of the method. The report ends with conclusions and recommendations regarding the two specific methods and settleability test in general.
Notes
Title from title screen (viewed Dec. 1, 2010). "Research Report" -- Cover. "CRADA No. 136-96." "Project Officer, Richard Field." "October 2002." Includes bibliographical resources. "EPA/600/R-02/090."
Contents Notes
"This study was a side-by-side comparison of two settling column tests: one traditional and one new. The newer apparatus was developed by the Centre d'Enseignement et de Recherche pour la Gestion des Ressources Naturelles et de l'Environnement (CERGRENE) of France and uses several small columns to sequentially measure particle-settling velocities. The new apparatus was compared with a larger, more traditional column, which has been widely used in the past as a research and academic tool, but it is difficult to transport and set up in a field location due to its size. The newer settling testing method was thought to be more amenable to field use because of ease of transport and sampling and the limited number of samples generated. The study was conducted in three phases: fabrication and preliminary testing, laboratory testing, and field testing. Equipment for the two testing methods was fabricated and laboratory tested and preliminary evaluations were made. Laboratory tests were conducted with two well characterized settling media, microsand and clay soil in order to measure suspended solid (SS) concentrations and develop settling distributions of known substances in the columns prior to testing actual WWF which exhibits variable SS concentrations and settling distributions. Field tests were conducted at a combined sewer control structure to compare the performance of the two columns when filled with combined sewage. A summary of the performance as measured by predicted percent removal of both columns for 15 laboratory tests and 3 field tests is presented, as well as a comparison of the advantages and disadvantages of the two methods. The newer testing method (CERGRENE) did not perform up to the anticipated theoretical expectations of the method. The report ends with conclusions and recommendations regarding the two specific methods and settleability test in general."