Insight into the composition and degradation potential of dissolved organic matter with different hydrophobicity in landfill leachates

Chemosphere
Xiao-Song HeCai-Hong Huang

Abstract

Dissolved organic matter (DOM) isolated from the leachates with different landfill ages was fractionated into hydrophobic acid (HOA), hydrophobic neutral (HON), hydrophobic base (HOB) fractions and hydrophilic matter (HIM) based on hydrophobicity, and the composition and degradation potential of the bulk DOM and its fractions were investigated by excitation-emission matrix fluorescence spectra coupled with parallel factor analysis. Results showed that the bulk DOM comprised fulvic-, humic-, tryptophan- and tyrosine-like substances, as well as component C1, whose composition and origin was unidentified. Landfill process increased the content of component C1, fulvic- and humic-like matter. The HON fractions comprised primarily component C1 and tyrosine-like matter. The HOA, HOB and HIM fractions isolated from the young leachates consisted mainly of tryptophan- and tyrosine-like substances. As to the intermediate and old leachates, the HOA and HOB fractions comprised mainly component C1, while the HIM comprised mainly fulvic-like matter. The HIM showed the most resistant against biodegradation among the four fractions, and was the main component of leachate treatment. Advanced oxidation and/or membrane treatment are recommended to...Continue Reading

References

Jan 25, 2003·Environmental Science & Technology·Jerry A Leenheer, Jean-Philippe Croué
May 26, 2004·Water Research·Andy Baker, Michael Curry
Mar 21, 2006·Water Research·Pin-Jing HeDuu-Jong Lee
Nov 13, 2007·Journal of Hazardous Materials·S RenouP Moulin
Jun 26, 2008·Journal of Environmental Sciences (China)·Shouliang HuoHongliang Liu
Jul 19, 2012·Environmental Science & Technology·Christopher L OsburnMichael T Montgomery

❮ Previous
Next ❯

Citations

Aug 22, 2017·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Guobin JiangQibin Li
May 26, 2020·Water Environment Research : a Research Publication of the Water Environment Federation·Yasmin CherniLobna Elleuch
Sep 24, 2020·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Xuqin PanQibin Li
Jul 26, 2017·Environmental Science and Pollution Research International·Jiaqi HouHongliang Liu
Jul 30, 2020·The Science of the Total Environment·Yufei ShiJinju Geng
Aug 14, 2021·Water Research·Chunying TengWei Chen

❮ Previous
Next ❯

Related Concepts

Related Feeds

Bioremediation (ASM)

Bioremediation is the treatment and removal of harmful pollutants or contaminants through the use of microorganisms. Discover the latest research here.