Characterization of natural organic colloids derived from sewage sludge

• Autorzy: Kowalkowski T
• Języki publikacji: EN

Abstrakty

EN

Fractionation of sewage sludge colloids has been achieved using the split-flow-thin (SPLITT) fractionation technique. It reveals that the majority of organic carbon as well as heavy metals is carried by particles smaller than 1 μm. Optimization of volumetric flowrates and application of full-feed depletion mode of SPLITT fractionation allows concentrating the smallest colloids. Additionally, HPLC and ¹³C NMR analyses has been performed to characterize the organic colloids. The ¹³C NMR spectrum confirms that smaller fraction scontained elevated contents of aliphatic, aromatic and carboxylic groups characteristic of humic compounds. HPLC analysis separates two fractions of substances and compares obtained chromatograms with separation of the humic standard.

Słowa kluczowe

EN

sewage sludge; waste water treatment plant; natural organic colloid; heavy metal; speciation; fractionation technique; SPLITT fractionation

• Wydawca: -
• Czasopismo: Polish Journal of Environmental Studies
• Rocznik: 2010
• Tom: 19
• Numer: 2
• Opis fizyczny: p.435-439,fig.,ref.

Twórcy

autor

Kowalkowski T

• Nicolaus Copernicus University, Gagarina 7, 87-100 Torun, Poland

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