Skip to main content

Full Scale Plant Testing of a Process that Uses Sewage Sludge to Produce an Organically-Enhanced Granular Nitrogen Fertilizer

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial

Abstract:

A full scale granulation testing facility was utilized to confirm process chemical and physical operating parameters and product fertilizer composition for the production of an inorganic/organic (sewage sludge) granulated nitrogen fertilizer. This technology was developed and commercialized in 1996 and continued through 2004. Dewatered sewage sludge was used as a replacement for water as the granulator pipe-cross reactor cooling agent. Pipe-cross reactor raw materials included sulfuric acid, anhydrous ammonia, and conditioned sludge. Granulator raw materials included anhydrous ammonia, aluminum sulfate, granulated ferric sulfate, and recycled product. Final fertilizer product met EPA Part 503 standards and fertilizer industry standards end point conditions of hardness, critical relative humidity and moisture including 17–18% nitrogen with 7.5% organic matter, 4% total carbon, 3% amino acids and micronutrients. This is a true beneficial reuse technology with value added components important to prevent nutrient mining of farmed soils and nutrient loss to the environment.

Keywords: amino acids; fertilizer; granulation; micronutrients; nitrogen; organic matter; pipe-cross reactor; sewage sludge

Document Type: Research Article

DOI: https://doi.org/10.2175/193864709793900069

Publication date: 2009-01-01

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 These proceedings are not peer reviewed.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
X
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