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Environ Monit Assess. 2017 Aug;189(8):414. doi: 10.1007/s10661-017-6097-x. Epub 2017 Jul 24.

Contaminants of emerging concern: a review of new approach in AOP technologies.

Author information

1
Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
2
Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran. a.esrafili@iums.ac.ir.
3
Department of Chemistry, Payame Noor University, Tehran, Iran.

Abstract

The presence of contaminants of emerging concern (CECs) such as pharmaceuticals and personal care products (PPCPs), endocrine-disrupting compounds (EDCs), flame retardants (FRs), pesticides, and artificial sweeteners (ASWs) in the aquatic environments remains a major challenge to the environment and human health. In this review, the classification and occurrence of emerging contaminants in aquatic environments were discussed in detail. It is well documented that CECs are susceptible to poor removal during the conventional wastewater treatment plants, which introduce them back to the environment ranging from nanogram per liter (e.g., carbamazepine) up to milligram per liter (e.g., acesulfame) concentration level. Meanwhile, a deep insight into the application of advanced oxidation processes (AOPs) on mitigation of the CECs from aquatic environment was presented. In this regard, the utilization of various treatment technologies based on AOPs including ozonation, Fenton processes, sonochemical, and TiO2 heterogeneous photocatalysis was reviewed. Additionally, some innovations (e.g., visible light heterogeneous photocatalysis, electro-Fenton) concerning the AOPs and the combined utilization of AOPs (e.g., sono-Fenton) were documented.

KEYWORDS:

Advanced oxidation processes; Combined process; Contaminants of emerging concern; Effluent; Hydroxyl radicals; Wastewater treatment plant

PMID:
28741247
DOI:
10.1007/s10661-017-6097-x
[Indexed for MEDLINE]

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