Water, Air, and Soil Pollution

, Volume 37, Issue 1, pp 41–53

Nitrate removal from ground water — use of a nitrate selective resin and a low concentrated regenerant

  • Jan Peter van der Hoek
  • Wim F. van der Hoek
  • Abraham Klapwijk
Article

DOI: 10.1007/BF00226478

Cite this article as:
van der Hoek, J.P., van der Hoek, W.F. & Klapwijk, A. Water Air Soil Pollut (1988) 37: 41. doi:10.1007/BF00226478

Abstract

A new, strong base, macro-porous anion exchange resin, Amberlite IRA 996, appeared to be more nitrate selective than sulfate selective in treating high nitrate concentrations (18 mg NOinf3sup−-N L−1) in potable water. When regeneration is carried out in a closed circuit in which a biological denitrification reactor is incorporated to remove nitrate from the regenerant, regeneration salt requirement and brine production can be minimized. In this combination of ion exchange and biological denitrification, regeneration with 30 g NaHCO3 L−1) is possible in 6 hr at a flow rate of 11 BV hr−1. Accumulation of sulfate in the closed regeneration circuit does not affect the nitrate capacity of the resin.

Copyright information

© Kluwer Academic Publishers 1988

Authors and Affiliations

  • Jan Peter van der Hoek
    • 1
  • Wim F. van der Hoek
    • 1
  • Abraham Klapwijk
    • 1
  1. 1.Department of Water Pollution ControlWageningen Agricultural UniversityWageningenThe Netherlands

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