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Title: Treatment of organophosphated flame retardants from waters by hydroxyl radical producing processes and toxicity investigation
Authors: Özmen, Fadime Karaer
Keywords: Organophosphated flame retardants
Tris(2-chloroethyl) phosphate
Hydroxyl radical OH center dot producing processes
Total organic carbon
Issue Date: 2021
Publisher: Desalination Publ
Abstract: The toxic flame retardant (FR) substances present in water and wastewater have become an important problem like tris(2-chloroethyl) phosphate (TCEP), which is the most used organophosphated FR in various polymer and causes a directly neurotoxic or carcinogenic effect on the human. TCEP can be found in surface water, wastewater treatment plants, oceans and drinking water due to high solubility in water and it is defined as a persistent, bio-accumulative and toxic pollutant. The hydroxyl radical (OH center dot) producing processes can be used for this type of pollutant providing high removal efficiency. This presented study was investigated the performance of the hydroxyl radical producing processes on the degradation of TCEP. Hydrogen peroxide, photolysis, Fenton, homogeneous photolysis, and photo-Fenton treatment methods were used to remove 1,000 mg/L TCEP as a model compound of the organophosphated flame retardants. The removal efficiencies of these treatment methods were determined with total organic carbon (TOC) due to easy application, the suitability of the optimization and referring all organic degradation products of TCEP. The effectiveness of these treatment methods on TOC removal efficiency was observed that H2O < UV < Fenton < UV-H2O < UV-Fenton. The highest TOC removal efficiency was attained with 93.75% using 0.18 mM Fe2+ and 30 mM H2O2 in the photo-Fenton. The cytotoxicity was significantly reduced with the photo-Fenton process.
ISSN: 1944-3994
Appears in Collections:Biyoloji Bölümü Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu
WoS İndeksli Yayınlar Koleksiyonu

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