Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Nitrate removal from water supplies by ion exchange : executive summary /
Author Clifford, Dennis A. ; Weber, Jr., Walter J.
Other Authors
Author Title of a Work
Weber, Walter J.,
CORP Author Michigan Univ., Ann Arbor.;Municipal Environmental Research Lab., Cincinnati, Ohio.
Publisher Environmental Protection Agency, Office of Research and Development, Municipal Environmental Research Laboratory ; For sale by the National Technical Information Service,
Year Published 1977
Report Number EPA/600-8-77-015; EPA 600/8-78-015; EPA-R-803898
Stock Number PB-277 092
OCLC Number 03811302
ISBN bpk.
Subjects Water--Purification--Ion exchange process. ; Nitrates--Environmental aspects.
Additional Subjects Inorganic nitrates ; Ion exchange resins ; Water treatment ; Water pollution control ; Potable water ; Anions ; Technology ; Cost analysis ; Fertilizers ; Performance evaluation ; Design criteria ;
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EHAM  TD433.C574 Region 1 Library/Boston,MA 04/29/2016
EJBD ARCHIVE EPA 600-8-77-015 Headquarters Library/Washington,DC 01/06/2014
EJBD  EPA 600-8-77-015 Headquarters Library/Washington,DC 12/21/2015
ELBD  EPA 600-8-77-015 AWBERC Library/Cincinnati,OH 09/08/2000
EMBD  EPA/600/8-77/015 NRMRL/GWERD Library/Ada,OK 09/29/1995
ERAD  EPA 600/8-77-015 Region 9 Library/San Francisco,CA 02/19/2013
ESAD  EPA 600-8-77-015 Region 10 Library/Seattle,WA 02/22/2019
NTIS  PB-277 092 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation ix, 42 pages : illustrations ; 28 cm.
Anion exchange using synthetic organic resins is a proven and practical technology for the removal of nitrate from water supplies. However, disposal of the spent regenerant brime solution containing nitrate is a potential problem. Two processes were examined in detail in this report--single-bed strong-base anion exchange with NaCl regeneration and two-bed strong-acid, weak-base ion exchange with HCl and NH4OH regeneration. Both systems must be operated to nitrate breakthrough to minimize regeneration costs. The two-bed process is one and one-half to two times as expensive to build and operate as is the single-bed process, but produces softened low-TDS, low-nitrate water, and has a readily disposable, spent regenerant with fertilizer value. Important design considerations were found to include the nitrate and sulfate concentrations in the raw water, the service flow rate, the resin bed depth, and the nitrate/chloride selectivity of the resin. The sulfate, nitrate, chloride, and bicarbonate selectivities and multicomponent column behavior of the anion resins available from U.S. manufacturers were examined and are reported in detail. An important peripheral finding was that significant quantities of nonvolatile organics were leached from 'clean' resins into the treated water.
Prepared under grant no. R-803898. "Nov. 1977." "EPA/600-8-77-015." Includes bibliographical references (pages 36-37).