Degradation of Triclosan by Photo-Fenton Oxidation

Öztamer, Merve; Çokay, Ebru

doi:10.21205/deufmd.2017195654

Cited by 3 publications

(1 citation statement)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In another study where photon-Fenton oxidation was employed, the increase in concentration of OH radicals and catalysts had led to an increase in the concentration of intermediate products, a removal efficiency of 99.5% was achieved at an optimum dosage of H 2 O 2 /Fe(II)/TCS = 50/0.1/10. Cokay and Oztamer [84], however, this did not hinder the generation of intermediate products, In a study using H 2 O 2 as an oxidant and BiFeO 3 magnetic nanoparticles (BiFeO 3 MNPs) as catalysts has proven to solve the issue of accumulation of intermediate products by modifying the particle surface with EDTA ligands [85], also this facilitated in reducing removal time and increasing removal efficiency of TCS. In a study conducted by [86], photocatalysis was found to be a promising method for abatement of TCS than photolysis, an efficiency up to 82% was achieved; moreover, using OH radical has proven to be effective in eliminating dioxin intermediate, and the mechanism of photolysis and photocatalysis is shown in Fig.…”

Section: Advanced Oxidation Process (Aops)mentioning

confidence: 99%

Emerging contaminant (triclosan) identification and its treatment: a review

et al. 2019

View full text Add to dashboard Cite

Pollutants from personal care products (PCPs), pharmaceuticals, industrial wastes, food additives, pesticides and fertilisers are classified as emerging contaminants (ECs). These ECs have been given much attention due to their deleterious effects on human life, plants and animals. Triclosan (TCS), a broad spectrum antibiotic, is under the category of emerging contaminants; it is shown to have an eco-toxicity. It is a ubiquitous contaminant due to its wide range of applications in PCPs as an antibacterial agent. Inefficacy in the conventional treatment of wastewater which is being discharged into natural streams has led to the bioaccumulation of TCS. Concentrations of TCS have been detected in several wastewater treatment plants and urinary samples of humans and streams. In surface waters, TCS was detected in Korea, USA, Europe, China, Japan and India. In order to overcome the astringent effects of TCS, there is a need for its treatment. This paper addresses studies conducted on methods of treating TCS, and among all the methods, membrane technology (MT) was found to be effective and this is mainly due to hydrophilic nature of TCS, high log K ow value (4.8), and a removal efficiency > 95% was observed when powdered activated carbon of 100 mg/l was combined with MT.

show abstract

Section: Advanced Oxidation Process (Aops)mentioning

confidence: 99%

Emerging contaminant (triclosan) identification and its treatment: a review

et al. 2019

View full text Add to dashboard Cite

show abstract

Treatability of diclofenac and triclosan solutions by catalytic and photocatalytic oxidation processes

Topkaya,

Arslan

2024

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

BACKGROUNDIn recent years, advanced oxidation processes (AOP) have gained importance as highly effective methods in the treatment of organic substances with toxic and permanent properties. Diclofenac (DCF) and Triclosan (TCS) pollutants, which are from the endocrine disrupting chemicals (EDCs) that were encountered in various aquatic environments such as inlet and outlet waters of treatment plants, surface waters, drinking water, groundwater and sediments were reported in the literature. In this study, mineralisation of DCF and TCS pollutants, which were the EDCs, were investigated by AOPs. The applied processes were O3, O3/UV, O3/ZnO, UV/ZnO, and O3/UV/ZnO. The studies were carried out at two different initial concentrations (5 and 10 mg/L), at 5 ppm ozone dose, 2 × 8 W UVC light, 0.1 g ZnO, in the original pH, and 30 min reaction time.RESULTSThe highest COD and TOC removal efficiencies were determined in O3/UV/ZnO process as 82% COD, 71% TOC at 5 mg/L concentration for DCF pollutant and as 72% COD, 75% TOC at 10 mg/L concentration for TCS pollutant. For these process conditions, the ozone consumptions were determined 0.13 mgO3/mgCODremoved, 0.31 mgO3/mgTOCremoved and 0.69 mgO3/mgCODremoved, 0.98 mgO3/mgTOCremoved, respectively. The electrical energy per order values were found in the range of 12.33–20.88 kWh/m3 for O3/UV/ZnO processes. Treatment costs of these processes were calculated in the range of 0.002 to 44.823 €/m3.CONCLUSIONFor the treatability of DCF and TCS pollutants, ozone‐based advanced oxidation processes, especially O3/UV/ZnO photocatalytic ozone oxidation process were determined as a feasible process. © 2024 Society of Chemical Industry (SCI).

show abstract