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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.

Author information

1
School of Environment, Northeast Normal University, Changchun 130117, China.
2
Wuxi Xindu Environmental Protection Technology Co., Ltd. Wuxi 214215, China.
3
Jilin Engineering Research Centre for Municipal Wastewater Treatment and Water Quality Protection, Changchun 130117, China.
4
Scientific Research Management Department, Environmental Monitoring Center of Jilin Province, Changchun 13011, China.

Abstract

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.

PMID:
26623652
PMCID:
PMC4666622
DOI:
10.1371/journal.pone.0143819
[Indexed for MEDLINE]
Free PMC Article

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