Effect of urine dilution on ammonium sorption using natural zeolites

Treavor H. Boyer, Katie Cribbs

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

The effect of urine dilution on the kinetics and equilibrium sorption of ammonium to two natural zeolites was investigated for undiluted urine and urine at dilution levels of 10% (v/v), 1% (v/v), and 0.1% (v/v). Ammonium and the inorganic cations potassium, sodium, magnesium, and calcium were measured to elucidate the chemical interactions during the sorption process. The results show that ammonium removal from urine was greatest at the undiluted level. This is a key finding because it illustrates the benefit of urine source separation and treatment rather than the treatment of dilute wastewater streams. The removal of ammonium from urine was comparable for clinoptilolite and chabazite. For both zeolites, sodium was exchanged for ammonium and potassium. Both magnesium and calcium concentrations remained relatively constant during the sorption process.

Original languageEnglish (US)
Title of host publication87th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2014
PublisherWater Environment Federation
Pages7322-7328
Number of pages7
ISBN (Electronic)9781510870451
DOIs
StatePublished - Oct 1 2014
Externally publishedYes
Event87th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2014 - New Orleans, United States
Duration: Sep 27 2014Oct 1 2014

Publication series

Name87th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2014
Volume6

Conference

Conference87th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2014
CountryUnited States
CityNew Orleans
Period9/27/1410/1/14

Keywords

  • Nitrogen
  • Nutrient removal
  • Resource recovery

ASJC Scopus subject areas

  • Ecological Modeling
  • Environmental Chemistry
  • Pollution
  • Waste Management and Disposal
  • Water Science and Technology

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