The role of condensed organic matter in the nonlinear sorption of hydrophobic organic contaminants by a peat and sediments

Journal of Environmental Quality
Yong RanJiamo Fu

Abstract

This study examines the effect of soil organic matter heterogeneity on equilibrium sorption and desorption of phenanthrene, naphthalene, 1,3,5-trichlorobenzene (1,3,5-TCB), and 1,2-dichlorobenzene (1,2-DCB) by soils and sediments. Two estuary sediments, a Pahokee peat (PP; Euic, hyperthermic Lithic Haplosaprist), and two subsamples (base- and acid-treated peat [TP] and acid-treated peat [FP]) of the peat were used as the sorbents. The contents of black carbon particles were quantified with a chemical extraction method. Petrographical examinations revealed the presence of the condensed soil and sediment organic matter (SOM) in Pahokee peat. The Freundlich isotherm model in two different forms was used to fit both sorption and desorption data. The results show that the sorption and desorption isotherms are generally nonlinear and that the apparent sorption-desorption hysteresis is present for phenanthrene and TCB. Detailed analysis of sorption data for the tested sorbent-sorbate systems indicates that black carbon is probably responsible for sorption isotherm nonlinearity for the two sediments, whereas the humic substances and kerogen may play the dominant role in nonlinear sorption by the peat. This investigation suggests that t...Continue Reading

References

May 16, 2001·Environmental Science & Technology·G Xia, J J Pignatello
Jul 17, 2001·Environmental Science & Technology·W J BraidaJ J Pignatello
Dec 1, 1980·Environmental Science & Technology·J C MeansW L Banwart

❮ Previous
Next ❯

Citations

Mar 21, 2006·Environmental Geochemistry and Health·Lifeng PingPeter Christie
May 29, 2009·Environmental Monitoring and Assessment·Jinghuan ZhangYehong Shi
Jun 4, 2013·Environmental Science and Pollution Research International·Yong RanEddy Y Zeng
Aug 24, 2010·Environmental Science & Technology·Isabel R Faria, Thomas M Young
Aug 16, 2016·Environmental Science and Pollution Research International·Anna Zielińska, Patryk Oleszczuk
Feb 18, 2006·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Jin Hur, Mark A Schlautman
Mar 3, 2017·The Journal of Physical Chemistry. a·Pavel OndruchGabriele E Schaumann
Aug 2, 2020·Water Environment Research : a Research Publication of the Water Environment Federation·Adedapo O Adeola, Patricia B C Forbes
May 9, 2012·Journal of Environmental Quality·Jesús M Marín-BenitoMaría J Sánchez-Martín
Mar 14, 2018·Environmental Science and Pollution Research International·Shixiang DaiWenjie Ren
Oct 11, 2003·Journal of Environmental Quality·Yong RanGuoying Sheng
Apr 17, 2009·Environmental Science & Technology·Benny Chefetz, Baoshan Xing
Sep 5, 2008·Environmental Science & Technology·Satoshi EndoTorsten C Schmidt

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.