University of Illinois Urbana-Champaign

Regeneration of clinoptilolite by biologically restored brine

Semmens, M.J.

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https://hdl.handle.net/2142/90007

Description

Title
Regeneration of clinoptilolite by biologically restored brine
Author(s)
Semmens, M.J.
Contributor(s)
  • Klieve, Jeffrey
  • Porter, Paul
  • Booth, Alan
  • Schnobrich, Dana
  • Kartardjieff, Alexandra
  • University of Minnesota
  • University of Illinois at Urbana-Champaign
Issue Date
1979-02
Keyword(s)
  • Water resources development
  • Water resources development--Illinois
  • Drinking water treatment
  • Ammonium removal
Geographic Coverage
Illinois (state)
Abstract
Previous studies demonstrated that ammonium saturated clinoptilolite may be regenerated by nitrifying bacteria if a base is added for pH control. The mechanism was identified to be ammonium release by ion exchange followed by nitrification of the liberated ammonium. In this study the ion exchange and nitrification processes were studied separately to identify the best procedure for effective regeneration. The regeneration of clinoptilolite with neutral pH brine was studied and its effectiveness was measured by comparing breakthrough curves for ammonium removal. In addition the column performance was evaluated using recycled regenerant to evaluate the impact of the buildup of Ca, Mg and K in the regenerant. Nitrification studies conducted with recycled regenerant allowed the kinetics of ammonium oxidation to be identified. Both dispersed and attached growth systems were investigated. The observed nitrification kinetics were comparable to those reported by other investigators for domestic wastewater treatment. The information provided in the report allows for the rational design of ammonium removal by clinoptilolite which is regenerated using biologically restored regenerant.
Publisher
University of Illinois at Urbana-Champaign. Water Resources Center
Type of Resource
text
Language
en
Permalink
http://hdl.handle.net/2142/90007
Sponsor(s)/Grant Number(s)
  • U.S. Department of the Interior
  • U.S. Geological Survey
Copyright and License Information
Copyright 1979 held by M.J. Semmens

Owning Collections

Illinois Water Resources Center - Drinking Water Treatment PRIMARY