Development of Synthetic Soils from Biosolids
Over twenty years, the stakeholders have been developing synthetic soils from biosolids. In the 1980s, N-Viro International and Chemfix Technologies, Inc. developed Class A disinfected biosolids from alkaline stabilization that could be utilized as aglime agents and landfills cover. In addition, these applications yielded a low cost high volume endues product. These processes cost approximately 150 to 200 dollars per day ton of product. Composting and heat drying also produced organic fertilizers and organic amenders. The cost of these products were in the range of 10 to 50 dollars per ton, but the cost of these processes were still greater than 150 to 300 dollars a dry ton. A major advancement in NViro thermophilic alkaline stabilization was the alkaline composting process. This biological stabilization process required only 9 days instead of the 60 to 120 days by normal compost processing time. In the 21st Century, there has been a movement to produce higher value products at a lower dollar cost. Table 1 elucidates potential end uses of these soils. Engineered soiles cover topsoil, remediation soils and designer soils. The ornamental horticultural fertilizers go into short and long-term available nutrients in the same fertilizers. Finally, the development of high grade activated carbon, which has a high affinity for metals and polar organics such as triholomethane is another high value additive for synthetic soils.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
Document Type: Research Article
Publication date: 2001-01-01
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 These proceedings are not peer reviewed.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