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Title: Analytical and spectroscopic characterization of humic acids extracted from sewage sludge, manure, and worm compost

Journal Article · · Soil Science; (USA)
; ; ;  [1];  [2]
  1. Universita di Sassari (Italy)
  2. Eniricerche S.p.A., Milanese (Italy)

Humic acids extracted from sewage sludges, manure, and worm compost have been characterized by chemical and spectroscopic methods. Meaningful differences in the composition were revealed by FTIR, {sup 1}H, {sup 13}C NMR, and visible spectroscopies. These differences allow a differentiation among the products depending on the source from which they were obtained. Humic acid extracted from sewage sludges contains the highest percentage of aliphatic carbon, associated with polysaccharides and proteinaceous structures, and has characteristics close to those of aquatic humic acids. On the other hand, humic acids from manure and worm compost are similar to the humic acids originating from soil.

OSTI ID:
5547961
Journal Information:
Soil Science; (USA), Vol. 150:1; ISSN 0038-075X
Country of Publication:
United States
Language:
English