Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Direct Filtration of Lake Superior Water for Asbestiform Fiber Removal. Appendix E. Ontario Research Foundation Electron Microscope Analysis Results. Appendix F. EPA National Water Quality Laboratory X-Ray Diffraction Analysis Results. Appendix G. University of Minnesota at Duluth Electron Microscope Analysis Results.
CORP Author Black and Veatch, Kansas City, Mo.;National Environmental Research Center, Cincinnati, Ohio.;Corps of Engineers, St. Paul, Minn. St. Paul District.
Year Published 1975
Report Number DACW37-74-C-0079; EPA-ROAP-21AQB-024; EPA/670/2-75/050e;
Stock Number PB-249 068
Additional Subjects Water treatment ; Asbestos ; Lake Superior ; Water pollution ; Pilot plants ; Water quality ; Minnesota ; Water analysis ; X ray diffraction ; Air pollution ; Environmental surveys ; Amphiboles ; X ray analysis ; Diatomaceous earth ; Filtration ; Electron microscopy ; Granular materials ; Water pollution detection ; Duluth(Minnesota) ; Air pollution detection
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB-249 068 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 51p
Pilot plant research conducted in 1974 at Duluth, Minnesota, demonstrated that asbestiform fiber counts in Lake Superior water could be effectively reduced by municipal filtration plants. During the study engineering data were also obtained for making cost estimates for construction and operation of both granular and diatomaceous earth (DE) filtration plants ranging in size from 0.03 to 30 mgd. Data provided to the contractor by the Ontario Research Foundation are presented in Appendix E. ORF performed asbestiform fiber analysis of water samples by the transmission electron microscope method in this project. In order to place the data in better perspective, a description of the analytical method used by ORF is reproduced in Appendix E. In Appendix F, the amphibole mass data obtained by the National Water Quality Laboratory in Duluth are presented. This appendix also includes information on the analytical method used at NWQL. The x-ray diffraction analysis for amphibole mass provided confirmation of electron microscope amphibole fiber result. Fiber count data obtained at the University of Minnesota at Duluth are tabulated in Appendix G. A statement describing the electron microscope analytical method is also included.