Skip to main content


Buy Article:

$9.50 plus tax (Refund Policy)

Or sign up for a free trial

The city of Fort Collins, Colorado owns 10,390 ha of semi-arid rangeland for the recycling of municipal wastes via land application. In 1991, a study was initiated to determine the potential short-term impacts of water treatment residuals-biosolids co-application on soils and vegetation. Treatments consisted of 10 Mg biosolids ha−1 co-applied with 5, 10, and 21 Mg water treatment residuals (WTR) ha−1 to 15 × 15 m plots. All treatments were replicated four times. In October 2002, the plots were divided in half with one half of each plot receiving rates identical to the 1991 application. Soils data was collected in June 2004 and June 2005, from the 0–8, 8–15, and 15–30-cm depths, to access the short-term impacts of a repeated co-application and the long-term impacts of a single application. Soil pH and electrical conductivity (EC) were relatively unaffected by co-application. Soil NO3-N increased with both increasing WTR and with the repeated application, while soil NH4-N only increased in the soil surface. Total soil C and N increased in the soil surface with increasing co-application rate. Total surface-soil Cu, Cr, and Zn increased with increasing co-application and with repeated co-application. Total surface soil Ni increased with repeated co-application. Downward transport of both Mo and P indicated that these materials are translocated most likely as a WTR-particulate-bound phase.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Data/Media
No Metrics

Document Type: Research Article

Publication date: 2007-01-01

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 These proceedings are not peer reviewed.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