||Direct Filtration of Lake Superior Water for Asbestiform Fiber Removal. Appendix B. Design, Installation and Operation of Pilot Filters. Appendix C. Summary of Data for Individual Filter Runs.
||Black and Veatch, Kansas City, Mo.;National Environmental Research Center, Cincinnati, Ohio.
||DACW37-74-C-0079; EPA-ROAP-21AQB-024; EPA/670/2-75/050c;
Water treatment ;
Lake Superior ;
Water pollution control ;
Granular materials ;
Diatomaceous earth ;
Cost estimates ;
Fluid filters ;
Water quality ;
Pilot plants ;
Water quality data ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
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. Appendix B contains information on the pilot filters used in the study. Data are presented on the physical aspects of the units (dimensions and equipment configuration) and on the manner in which the filters were operated. Appendix C contains data obtained during the individual pilot plant filter runs. This kind of information will be useful to persons needing to know about specific conditions such as raw water turbidity, filtration rate, and chemical doses or diatomaceous earth types and amounts used for precoat or body feed.