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- 저자 : Vo Hoang Nhat Phong (검색결과 1 건)
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Removal of acetaminophen from wastewater by constructed wetlands with Scirpus validus
Vo Hoang Nhat Phong,Thammarat Koottatep,Saroj Kumar Chapagain,Atitaya Panuvatvanich,Chongrak Polprasert,Kyu Hong Ahn 대한환경공학회 2016 Environmental Engineering Research Vol.21 No.2
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.
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