Removal of acetaminophen from wastewater by constructed wetlands with Scirpus validus

Title
Removal of acetaminophen from wastewater by constructed wetlands with Scirpus validus
Authors
안규홍Vo Hoang Nhat PhongThammarat KoottatepSaroj Kumar ChapagainAtitaya PanuvatvanichChongrak Polprasert
Keywords
Acetaminophen; Constructed wetland; Fenton reaction; Pharmaceuticals and personal care products; Wastewater
Issue Date
2016-02
Publisher
Environmental Engineering Research
Citation
VOL 21, NO 2-170
Abstract
Since most of the existing wastewater treatment options lack the ability to treat micro-contaminants, the increased use of pharmaceuticals and personal care products (PPCPs) and release as human waste have become a serious concern in recent years. Constructed wetlands (CWs) are a low-cost technology for wastewater treatment, however, its performance in term of PPCPs removal has not yet been fully investigated. This study aimed to characterize the removal factors and efficiency of acetaminophen (ACT) removal by CWs. The results revealed the decreased concentrations of ACT with increasing hydraulic retention times (HRT) of 0, 3, 5 days. The contribution of removal factors was found to be varied with initial ACT concentration. At the low ACT concentration (i.e. 1 ppb), plant uptake was the dominant, followed by microbial and photolytic removal. In contrast, at the high ACT concentration (i.e. 100 ppb), microbial and photolytic removal were found as dominant factors. On the other hand, hydrogen peroxide (H2O2) concentration was found at higher level in the plant shoot than in the root probably due to occurrence of the Fenton reaction resulting in PPCPs removal.
URI
http://pubs.kist.re.kr/handle/201004/70186
ISSN
1226-1025
Appears in Collections:
KIST Publication > Article
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