Record number :
726253
Title of article :
Changes in sewage sludge carbon forms along a treatment stream Original Research Article
Author/Authors :
Martin T.E. Smith، نويسنده , , Ronald J. Smernik، نويسنده , , Graham Merrington، نويسنده , , Mark Tibbett، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Pages :
5
From page :
981
To page :
985
Abstract :
The behaviour and fate of macronutrients and pollutants in sewage sludge applied to the land are affected by the chemical composition of the sludge organic matter, which in turn is influenced by both sewage source and by sewage treatment processes. In this study, 13C nuclear magnetic resonance (NMR) spectroscopy was used to characterise the organic matter of sludges collected at three different points along the treatment stream of a municipal sewage works with a domestic catchment. Sludge at the first point, an undigested liquid (UL) sludge, had a substantially different composition to the anaerobically digested (AD) and dewatered sludge cake (DC) materials, which were similar to each other. In particular, the UL sludge contained more alkyl C than the AD or DC sludges. All three sludges were found to contain mobile alkyl C that is poorly observed using the cross polarisation (CP) technique, necessitating the use of the less sensitive, but more quantitatively reliable direct polarisation (DP) technique to obtain accurate distributions of C types.
Keywords :
Sewage sludgeOrganic matterNMR spectroscopyBiosolids
Journal title :
Chemosphere
Journal title :
Chemosphere
Serial Year :
2008
Link To Document :
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