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Characterization, Behavior, and Effects of Organic Matter in Natural Environments and Water/Wastewater Treatments

A special issue of International Journal of Environmental Research and Public Health (ISSN 1660-4601). This special issue belongs to the section "Environmental Science and Engineering".

Deadline for manuscript submissions: closed (30 March 2023) | Viewed by 2787

Special Issue Editor


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Guest Editor
College of Environment and Safety Engineering, Fuzhou University, Fuzhou 350108, China
Interests: dissolved organic matter; natural organic matter; absorption spectroscopy; fluorescence spectroscopy; stable isotope of carbon and nitrogen

Special Issue Information

Dear Colleagues,

Organic matter (OM), including dissolved, particulate, and sediment organic matter (DOM, POM, and SOM), is ubiquitous and important in natural environments and water/wastewater treatments. It plays an important role in the cycles of critical elements (e.g., C, N, and P) and provides the substrate for aquatic production. It is also important for determining the speciation, migration, toxicity, and fate of inorganic and organic pollutants (e.g., heavy metals and persistent organic pollutants). Therefore, the characterization, behavior, and effects of OM are an important research area for decades. To advance our understanding of OM in natural and engineering systems, this Special Issue calls for papers on the following topics:

  1. Characterization of OM or its components in natural environments (aquatic environments, soil, and atmosphere) and engineering systems (drinking water or wastewater treatments);
  2. Behaviors of OM in natural environments and engineering systems, such as the spatial distributions and temporal variations;
  3. Mechanisms underlying the changes of OM, such as adsorption, photochemical degradation, and microbial transformation;
  4. Roles of OM in the aquatic biogeochemistry and ecosystem functioning, including but not limited to the implications for the carbon cycle, nutrient cycling, pollutant behavior, and productivity;
  5. Effects of OM on the drinking water and wastewater treatments, such as the treatment performance and the formation of byproducts.

Dr. Liyang Yang
Guest Editor

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Keywords

  • natural organic matter
  • dissolved organic matter
  • particulate organic matter
  • sediment organic matter
  • aquatic environments
  • soil
  • atmosphere
  • drinking water treatment
  • wastewater treatment

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Published Papers (1 paper)

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Research

13 pages, 3054 KiB  
Article
Characterization of Dissolved Organic Matter in Solar Ponds by Elemental Analysis, Infrared Spectroscopy, Nuclear Magnetic Resonance and Pyrolysis–GC–MS
by Keli Yang, Yaoling Zhang, Yaping Dong, Jiaoyu Peng, Wu Li and Haining Liu
Int. J. Environ. Res. Public Health 2022, 19(15), 9067; https://doi.org/10.3390/ijerph19159067 - 25 Jul 2022
Cited by 6 | Viewed by 2172
Abstract
The abundance and chemical composition of dissolved organic matter (DOM) in the brine of solar ponds affect the efficiency of mineral extraction and evaporation rates of the brine, and cause undesired odor and color of the products. Here, we report an investigation into [...] Read more.
The abundance and chemical composition of dissolved organic matter (DOM) in the brine of solar ponds affect the efficiency of mineral extraction and evaporation rates of the brine, and cause undesired odor and color of the products. Here, we report an investigation into the composition and changes of DOM in solar ponds from Salt Lake brine with multiple complementary analysis techniques. The results showed that the DOM derived from Salt Lake brine was primarily composed of carbohydrates, aliphatic and aromatic compounds. The concentrations of dissolved organic carbon in solar ponds increased with exposure time by up to 15−fold (from 23.4 to 330.8 mg/L) upon evaporation/irradiation of Salt Lake brine. Further qualitative analyses suggest that the relative abundance of aliphatic compounds (including functionalized ones) increased from 49.5% to 59.2% in the solar pond process, while the opposite was observed for carboxylic acid moieties, aromatics and carbohydrates, which decreased from 15.7%, 7.1% and 26.1% to 13.4%, 5.3% and 23.0%, respectively. The pyrolysis–gas chromatography–mass spectrometry results reveal that the presence of some sulfur-containing organics implied some anaerobic biotic decay, but microbiological processes were probably subordinate to photo-induced DOM transformations. In the Salt Lake brine, exposure-driven decay decreased the abundance of polysaccharides and increased that of mono- and polyaromatic pyrolysis products. Our results here provide new insights for better understanding the changes of DOM chemical composition in the solar ponds of Salt Lake brine. Full article
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