• AWWA ACE93114
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AWWA ACE93114

  • Nitrate Removal by POU Ion Exchange Systems
  • Conference Proceeding by American Water Works Association, 01/01/1993
  • Publisher: AWWA

$12.00$24.00


Nitrate is a specific contaminant and is federally regulated not to exceed 10 mg/L. Fertilizer use, decayed vegetable and animal matter, domestic effluents, sewage sludge disposal to land, industrial discharges, leachates from refuse dumps, and atmospheric washout all contribute to the increase of nitrate in water sources. Nitrate contamination of shallow, private wells in Florida is an emerging problem to homeowners who rely on groundwater as their only potable water source. A recent survey (1990) conducted by the Florida Department of Environmental Regulation (FDER) revealed that 306 out of 1369 private wells sampled, primarily in Central Florida, were found to have excessive levels of nitrate, generally ranging from 15 to 35 mg/L. Fertilizer from citrus production is thought to be the major contributor. In order to correct the nitrate contamination problem, FDER funded a research project to look for solutions on a small scale, i.e., investigating the feasibility of point of use (POU) systems for nitrate removal. This paper describes the results from the nitrate removal project using Sybron SR-6 (nitrate specific) and CS-2-HP (nitrate/sulfate specific) resins. Laboratory and field studies were conducted to evaluate the effectiveness and cost of using ion exchange resins for nitrate removal from contaminated well water at the point of use.

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