Emission of (chlorinated) reclaimed water into a Mediterranean River and its related effects to the dissolved organic matter fingerprint

Molecular-level characterization of dissolved organic matter (DOM) in different urban water resources (river water, groundwater, reclaimed water, and rainwater) was performed by Orbitrap Fourier transform mass spectrometry (FT-MS). The mass spectra, which were fingerprints of DOM composition, were clearly different among samples. Based on accurate molecular mass determination, about 300 molecular formulae were identified. Most of the DOM molecules were composed of carbon, hydrogen and oxygen. Molecular formulae in river water consisted of CHO mostly and much less N- and S-containing compounds than other water samples. The percentage of CHO molecules was the highest for reclaimed water. The reclaimed water sample was characterized by a few peaks with strong intensities, which were presumed to be linear alkylbenzene sulfonates, their co-products and their biodegradation products based on their molecular formulae. Some of these compounds were also detected from river water, probably indicating the impact of wastewater treatment plants located upstream of the sampling point. Orbitrap FT-MS analysis is a powerful tool to discriminate DOM composition of urban water resources.

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Solar irradiation-induced photochemical processing of dissolved organic matter in reclaimed water

Journal of Water Process Engineering ◽

10.1016/j.jwpe.2021.102544 ◽

2022 ◽

Vol 46 ◽

pp. 102544

Author(s):

Hengfeng Zhang ◽

Yucong Zheng ◽

Xiaochang C. Wang ◽

Yongkun Wang ◽

Mawuli Dzakpasu

Keyword(s):

Organic Matter ◽

Dissolved Organic Matter ◽

Reclaimed Water ◽

Solar Irradiation ◽

Photochemical Processing

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Dissolved organic matter variability along an impacted intermittent Mediterranean river

Limnetica ◽

10.23818/limn.38.32 ◽

2019 ◽

Vol 38 (2) ◽

pp. 555-573

Author(s):

Veronica Granados ◽

Andrea Butturini

Keyword(s):

Organic Matter ◽

Dissolved Organic Matter ◽

Mediterranean River

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Transformation of Dissolved Organic Matter in a Novel Groundwater Recharge System with Reclaimed Water

Water Environment Research ◽

10.2175/106143011x12928814445014 ◽

2011 ◽

Vol 83 (12) ◽

pp. 2140-2147 ◽

Cited By ~ 2

Author(s):

Wu Linlin ◽

Zhao Xuan ◽

Zhang Meng

Keyword(s):

Organic Matter ◽

Dissolved Organic Matter ◽

Groundwater Recharge ◽

Reclaimed Water

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The Characterization of Dissolved Organic Matter in Reclaimed Water and Its Influence on Copper Toxicity

Bulletin of Environmental Contamination and Toxicology ◽

10.1007/s00128-019-02716-9 ◽

2019 ◽

Vol 103 (5) ◽

pp. 704-709 ◽

Cited By ~ 1

Author(s):

JinXing Zuo ◽

Jia Pei ◽

Shu Liu ◽

Xiaomin Li ◽

Jinqian Ren ◽

...

Keyword(s):

Organic Matter ◽

Dissolved Organic Matter ◽

Reclaimed Water ◽

Copper Toxicity

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Quality and reactivity of dissolved organic matter in a Mediterranean river across hydrological and spatial gradients

The Science of The Total Environment ◽

10.1016/j.scitotenv.2017.05.113 ◽

2017 ◽

Vol 599-600 ◽

pp. 1802-1812 ◽

Cited By ~ 28

Author(s):

Elisabet Ejarque ◽

Anna Freixa ◽

Eusebi Vazquez ◽

Alba Guarch ◽

Stefano Amalfitano ◽

...

Keyword(s):

Organic Matter ◽

Dissolved Organic Matter ◽

Spatial Gradients ◽

Mediterranean River

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Sediment microbial communities rely on different dissolved organic matter sources along a Mediterranean river continuum

Limnology and Oceanography ◽

10.1002/lno.10308 ◽

2016 ◽

Vol 61 (4) ◽

pp. 1389-1405 ◽

Cited By ~ 26

Author(s):

A. Freixa ◽

E. Ejarque ◽

S. Crognale ◽

S. Amalfitano ◽

S. Fazi ◽

...

Keyword(s):

Organic Matter ◽

Dissolved Organic Matter ◽

Microbial Communities ◽

River Continuum ◽

Organic Matter Sources ◽

Mediterranean River

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The structure and origin of dissolved organic matter studied by UV-vis spectroscopy and fluorescence spectroscopy in lake in arid and semi-arid region

Water Science & Technology ◽

10.2166/wst.2011.283 ◽

2011 ◽

Vol 63 (5) ◽

pp. 1010-1017 ◽

Cited By ~ 16

Author(s):

Guo Xu-jing ◽

Xi Bei-dou ◽

Yu Hui-bin ◽

Ma Wen-chao ◽

He Xiao-song

Keyword(s):

Organic Matter ◽

Dissolved Organic Matter ◽

Water Samples ◽

Industrial Wastewater ◽

Reclaimed Water ◽

Domestic Sewage ◽

Aromatic Structure ◽

Vis Spectroscopy ◽

Humification Degree ◽

Semi Arid Region

To develop a proper indicator which could predict water quality and trace pollution sources is critically important for the management of sustainable aquatic ecosystem. In our study, seven water samples collected from Wuliangsuhai Lake in Inner Mongolia were used. UV-visible spectra and synchronous fluorescence spectra were applied to investigate the humification degree and aromatic structure of dissolved organic matter (DOM) extracted from water samples. The results showed that both samples from W1 site and W3 site display lower humification degree and less aromatic structure, where industrial wastewater and domestic sewage, and reclaimed water of farmland irrigation, were accepted respectively. After computing the values of SUVA254, A280, A250/365, A253/203 and A226–400, we reached the conclusion that they have a consistent trend (W4> W6> W5> W2> W7> W1> W3). Fluorescence index (f450/500) was always utilised to interpret the origin of organic matter in a complex aquatic environment system. Values of f450/500 are closer to 1.60, indicating that humic substances derived from terrestrial sources and biological sources. Our study demonstrated that reclaimed water of farmland irrigation, industrial wastewater and domestic sewage will definitely influence the humification degree and amount of the aromatic structure of DOM.

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