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Comparison Between Soil Half–Life of PBDEs in Soils that have Received Biosolids Application

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Abstract:

There has been great concern with the presence of microconstituents in wastewater and their fate during treatment with expected accumulation in biosolids. This work focuses on polybrominated diphenyl ethers (PBDEs), flame retardants that are being phased out of production, but will remain in the environment as they are persistent and present in many consumer goods that will last long. PBDEs accumulate in the biosolids and are transferred to soil after land application. We intend to report on the soil half-life of selected PBDEs in commercial fields and an experimental field. Samples were collected in 30 commercial fields with different number of biosolids application and the experimental plot. The methodology used consisted of a vortex extraction with the analysis performed using GC-MS. Preliminary results show that a soil half-live of 12.7 years is appropriate and does not significantly differ between commercial fields and the experimental plot

Keywords: Biosolids; Microconstituents; PBDE; Soil; half-life

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864711802765237

Publication date: January 1, 2011

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  • 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 These proceedings are not peer reviewed.

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