BIOSOLIDS LAND APPLICATION IN FRANCE: A COMPARATIVE STUDY WITH FERTILISERS FOR THE EFFECT ON PLANTS AND SOILS
Abstract:This study looks at the behaviour of metal trace elements contained in sludges and fertilizers, when they are mixed with a clay soil. It has been made using plant containers, with three urban residual sludges and one industrial sludge, plus a fertilizer, placed in a plant house with controlled temperature and humidity. Some of the pots have been seeded with ryegrass and compared to controls.
The addition of biosolids has increased the production of ryegrass plant matter and reduced its water consumption. The roots, have absorbed greater quantities of metal trace elements than the above ground parts, and blocked their transfer. No significant differences have been observed between the mixtures with or without biosolids, except for the industrial one which has induced higher levels. The flux of trace metal elements brought in by the biosolids has not produced a significant rise in the initial stock of soil metals.
Document Type: Research Article
Publication date: January 1, 2001
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 These proceedings are not peer reviewed. WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
- Subscribe to this Title
- Membership Information
- About WEF Proceedings
- WEFTEC Conference Information
- ingentaconnect is not responsible for the content or availability of external websites