||Reduction of disinfection by-product precursors by nanofiltration /
Taylor, J. S. ;
Reiss, C. R. ;
Jones, P. S. ;
Morris, K. E. ;
Lyn., T. L.
||University of Central Florida, Orlando. Dept. of Civil Engineering and Environmental Sciences.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
|| Risk Reduction Engineering Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Disinfection and disinfectants. ;
Water treatment ;
Water pollution control ;
Surface waters ;
Ground water ;
Potable water ;
Cost analysis ;
Chemical reactions ;
Granular activated carbon treatment ;
Operating costs ;
Capitalized costs ;
Pilot plants ;
Performance evaluation ;
Pretreatment process ;
Daytona Beach(Florida) ;
||Some EPA libraries have a fiche copy filed under the call number shown.
||758 pages : illustrations ; 28 cm
The reduction of disinfection by-product (DBP) precursors by nanofiltration was investigated in Florida at both a groundwater site and a surface water site. Separate studies, involving pilot plant operations, were conducted for one year at each site. The principal research tasks at each site were membrane selection, selection of an appropriate pretreatment process and operation of the membrane pilot plant. At the groundwater site (Daytona Beach, FL), conventional pretreatment (scaling control and pre-filtration) was required to control nanofilter fouling. Over one year of pilot plant operation, the average DBP Formation Potential (DBPFP) in the system permeate was 20 micrograms/L as Cl(-), representing a 96 percent reduction in the DBPFP of the raw water. At the surface water site (Melbourne, FL), alum coagulation, GAC filtration and microfiltration were all used as pretreatment options for nanofiltration. Over one year of pilot plant operation, the average DBPFP in the system permeate of the alum coagulation/nanofiltration combination was 22 micrograms/L as Cl(-), representing a 98 percent reduction in the DBPFP of the raw water. Using the pilot plant data, capital and operation and maintenance costs were developed to construct a 10 MGD nanofiltration plant at both the groundwater and surface water sites.
"J. Keith Carswell, project officer." "February 1992." Includes bibliographical references. "Cooperative agreement no. CR-815288." "EPA/600/R-92/023." Microfiche.