INFRARED SPECTROSCOPIC CHARACTERIZATION OF SLUDGES AND SLUDGE EXTRACTS
- 1 October 1983
- journal article
- research article
- Published by Wolters Kluwer Health in Soil Science
- Vol. 136 (4), 237-249
- https://doi.org/10.1097/00010694-198310000-00007
Abstract
Using Fourier-transform infrared (FTIR) spectroscopic techniques, we examined a series of whole sewage sludges and extracts obtained from the various samples. Sludges were fractionated by three different, chemically mild techniques: (1) direct solvent extraction, (2) two-phase ether/water extraction in which the pH of the aqueous layer was adjusted from 1.5 to 11.5, and (3) dry-column chromatography. The FTIR spectra provide a qualitative assessment of the types of constituents and functional groups found in the sludges and extracts. The spectra also allow a comparison of the differences and similarities of both the whole and fractionated samples. Using Fourier-transform infrared (FTIR) spectroscopic techniques, we examined a series of whole sewage sludges and extracts obtained from the various samples. Sludges were fractionated by three different, chemically mild techniques: (1) direct solvent extraction, (2) two-phase ether/water extraction in which the pH of the aqueous layer was adjusted from 1.5 to 11.5, and (3) dry-column chromatography. The FTIR spectra provide a qualitative assessment of the types of constituents and functional groups found in the sludges and extracts. The spectra also allow a comparison of the differences and similarities of both the whole and fractionated samples. © Williams & Wilkins 1983. All Rights Reserved.This publication has 5 references indexed in Scilit:
- Dry column method for the quantitative extraction and simultaneous class separation of lipids from muscle tissueLipids, 1981
- Changes in the Humic Acid Fraction of Soil Resulting from Sludge ApplicationSoil Science Society of America Journal, 1980
- Determination of Total Fat in Meat and Meat Products by a Rapid, Dry Column MethodJournal of AOAC INTERNATIONAL, 1980
- Infrared Spectra of Sewage Sludge Fractions: Evidence for an Amide Metal Binding SiteSoil Science Society of America Journal, 1979
- Effects of annual and accumulative applications of sewage sludge on assimilation of zinc and cadmium by corn (Zea mays L.)Environmental Science & Technology, 1977