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PLoS One. 2015 Dec 1;10(12):e0143819. doi: 10.1371/journal.pone.0143819. eCollection 2015.

Removing of Disinfection By-Product Precursors from Surface Water by Using Magnetic Graphene Oxide.

Liu Z1, Wang X1, Luo Z1,2, Huo M1,3, Wu J4, Huo H1, Yang W1,3.

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School of Environment, Northeast Normal University, Changchun 130117, China.
Wuxi Xindu Environmental Protection Technology Co., Ltd. Wuxi 214215, China.
Jilin Engineering Research Centre for Municipal Wastewater Treatment and Water Quality Protection, Changchun 130117, China.
Scientific Research Management Department, Environmental Monitoring Center of Jilin Province, Changchun 13011, China.


The magnetic graphene oxide (MGO) was successfully synthesised by the in situ chemical co-precipitation method with Fe3+, Fe2+ and graphene oxide (GO) in laboratory and, was used as an adsorbent for disinfection by-product (DBP) precursors removing from four natural surface water samples. The results indicate that various DBPs formation significantly decreased by 7-19% to 78-98% for the four samples after MGO treatment and, the treatment process was rapidly reached equilibrium within 20 minutes. The DBP precursors removal efficiency decreased with the increasing pH value from 4 to 10. Hydrophobic compounds (humic acid and fulvic acid) are more sensitive to MGO, whereas hydrophilic and nitrogenous compounds (aromatic proteins) are more insensitive. MGO could be regenerated by using 20% (v/v) ethanol and, the DBP precursors removal efficiency can stay stable after five cycles. These results indicate that MGO can be utilized as a promising adsorbent for the removal of DBP precursors from natural surface water.

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