Sorption and desorption of naphthalene by soil organic matter: importance of aromatic and aliphatic components

Journal of Environmental Quality
Amrith S Gunasekara, Baoshan Xing

Abstract

Nonlinear isotherm behavior has been reported for the sorption of hydrophobic organic compounds (HOCs) in soil organic matter (SOM), but the exact mechanisms are unknown. Our objective was to provide insight into the sorption mechanism of HOCs in SOM by studying the sorption-desorption processes of naphthalene in a mineral soil, its humic fractions, and lignin. Additionally, humin and lignin were used for studying the effects of temperature and cosolvent on HOC sorption. All isotherms were nonlinear. The humin and lignin isotherms became more linear at elevated temperatures and with the addition of methanol indicating a condensed to expanded structural phase transition. Isotherm nonlinearity and hysteresis increased in the following order: soil humic acid (HA) < soil < soil humin. Of the samples, aliphatic-rich humin exhibited the largest degree of nonlinearity and had the highest sorption capacity for naphthalene. High nonlinearity and hysteresis in humin were most likely caused by its condensed structure. A novel aliphatic, amorphous condensed conformation is proposed. This conformation can account for both high sorption capacities and increased nonlinearity observed for aliphatic-rich samples and can explain many sorption di...Continue Reading

References

Jan 1, 1981·Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes·B T Bowman
Jul 17, 1998·Free Radical Biology & Medicine·M BagchiS J Stohs
Feb 24, 2001·Environmental Pollution·B Xing
May 16, 2001·Environmental Science & Technology·G Xia, J J Pignatello
May 25, 2002·Environmental Science & Technology·Myrna J SalloumPatrick G Hatcher
Sep 12, 2002·Chemosphere·Guangwei DingBaoshan Xing
Jul 1, 1994·Environmental Science & Technology·E M MurphyT W Wietsma

❮ Previous
Next ❯

Citations

Oct 22, 2008·Environmental Science and Pollution Research International·Bo PanBaoshan Xing
May 27, 2009·Environmental Science and Pollution Research International·Kun YangBaoshan Xing
Oct 9, 2009·International Journal of Phytoremediation·Elizabeth Guthrie Nichols, Jennifer Musella
Jul 6, 2014·Chemosphere·Yanjie LiQian Zhang
Oct 26, 2016·Journal of Hazardous Materials·Jinlan XuXiumin Li
Feb 18, 2006·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Jin Hur, Mark A Schlautman
Jan 22, 2014·Dalton Transactions : an International Journal of Inorganic Chemistry·Congcong DingXiangke Wang
Sep 10, 2004·Journal of Environmental Quality·Daniel Said-PullicinoAlfred J Vella
May 30, 2015·Journal of Environmental Quality·Yaniv OlshanskyBenny Chefetz
Sep 10, 2004·Journal of Environmental Quality·Jin Hur, Mark A Schlautman
Jan 14, 2005·Journal of Environmental Quality·Kaijun Wang, Baoshan Xing
Jun 25, 2008·Journal of Environmental Quality·Gabriela BriceñoGraciela Palma
Jun 6, 2009·Archives of Environmental Contamination and Toxicology·Fuhong Sun, Qixing Zhou
Dec 29, 2007·Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes·Srimathie P IndraratneTee Boon Goh
May 16, 2013·Journal of Environmental Quality·Bei ChuRobert N Lerch
Nov 26, 2015·Environmental Science and Pollution Research International·Li ZhangJuan Wang
Feb 13, 2018·Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes·Paulo R Dores-SilvaMaria O O Rezende
Oct 31, 2017·Environmental Science. Processes & Impacts·Uchechukwu V OkereKirk T Semple
Mar 14, 2018·Environmental Science and Pollution Research International·Shixiang DaiWenjie Ren
Mar 26, 2009·Pest Management Science·Amrith S GunasekaraRonald S Tjeerdema
Dec 2, 2011·Journal of Environmental Monitoring : JEM·Xinghui XiaJianbing Li
Mar 29, 2018·Environmental Science and Pollution Research International·Huilan ShiWenhao Pang
Jul 22, 2019·International Journal of Environmental Research and Public Health·Zhikang WangXiangxiang Fu
Mar 27, 2021·Journal of Environmental Quality·Fritzie Rivas ChenMichael L Thompson
Apr 28, 2011·Journal of Environmental Quality·Si Hyun WuChung-Ho Lin
Jun 2, 2006·Journal of Environmental Quality·Joseph J PignatelloBaoshan Xing

❮ 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.