Skip to main content

A Comparative Study of the Recovery of Ammonium from Clinoptilolite Exhausted with Conventional Domestic Wastewater and with Source Separated Human Urine

Buy Article:

$9.50 plus tax (Refund Policy)

Or sign up for a free trial

The natural zeolite clinoptilolite exhausted with ammonium is proposed as an alternative fertilizer. Two different sources of exhausting clinoptilolite with ammonium, and recovery of the surface accumulated ammonium were investigated. The two sources were conventional domestic wastewater and separately collected human urine. The feed solution was contacted with clinoptilolite for transfering ammonium onto the solid phase in laboratory scale columns. Subsequently, the exhausted clinoptilolite was contacted with tap water to observe the release of ammonium into the wash water. The results have revealed that over 90% of ammonium in conventional domestic wastewater and human urine could be transferred from the liquid phase onto the solid phase. High levels of recovery from surface accumulated ammonium could also be achieved, suggesting that the exhausted clinoptilolite may be used as a potential fertilizer. Surface concentrations in both cases were comparable at the level of 9.5±0.5 mg NH4 +/g clinoptilolite. Recoveries of ammonium from both sources were comparable, i.e. 8.46 – 9.07 mg NH4 +/g clinoptilolite and in all cases were over 90%, going up as high as 96%. In summary, the recovery of ammonium from exhausted clinoptilolite was high and comparable regardless of its source, indicating that the use of clinoptilolite loaded with ammonium as an alternative fertilizer is a promising suggestion.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Keywords: Ammonium removal and recovery; ECOSAN/segregated collection of domestic wastewater; fertilizer from domestic wastewater; human urine; ion exchange with clinoptilolite; sustainability

Document Type: Research Article

Publication date: 01 January 2011

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    A subscription to the Proceedings of the Water Environment Federation includes access to most papers presented at the annual WEF Technical Exhibition and Conference (WEFTEC) and other conferences held since 2000. Subscription access begins 12 months after the event and is valid for 12 months from month of purchase. A subscription to the Proceedings of the Water Environment Federation is included in Water Environment Federation (WEF) membership.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access. Access begins 12 months after the conference or event
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Learn about the many other WEF member benefits and join today
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more