Abatement of phenolic mixtures by catalytic wet oxidation enhanced by Fenton's pretreatment: Effect of H2O2 dosage and temperature

Antibiotics are nonbiodegradable, can survive at aquatic environments for long periods and they have a big potential bio-accumulation in the environment. They are extensively metabolized by humans, animals and plants. After metabolization, antibiotics or their metabolites are excreted into the aquatic environment. Removal of these compounds from the aquatic environment is feasible by different processes. But antibiotics are not treated in conventional wastewater treatment plants efficiently. During the last years studies with advanced oxidation processes (AOPs) for removal of these pharmaceuticals from waters has shown that they can be useful for removing them fully. Advanced oxidation processes (AOPs) can work as alternatives or complementary method in traditional wastewater treatment, and highly reactive free radicals, especially hydroxyl radicals (OH) generated via chemical (O 3 /H 2 O 2 ,O 3 /OH -), photochemical (UV/O 3 ,O 3 /H 2 O 2 ) reactions, serve as the main oxidant. This study presents an overview of the literature on antibiotics and their removal from water by advanced oxidation processes. It includes almost all types of antibiotics which are consumed by human and veterinary processes. It was found that most of the investigated advanced oxidation treatment processes for the oxidation of antibiotics in water are direct and indirect photolysis with the combinations of H 2 O 2 ,TiO 2 , ozone and Fenton's reagent.

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“…The main handicap of the process is the low pH value. It is required to avoid iron precipitation that takes place at high pH [154,155].…”

Section: Assessment Of Aops Performance For Antibiotic Removalmentioning

confidence: 99%

Treatment of Antibiotics in Wastewater Using Advanced Oxidation Processes (AOPs)

Kurt¹,

Mert²,

Özengi̇n³

et al. 2017

Physico-Chemical Wastewater Treatment and Resource Recovery

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“…It is worth noting that, recently, studies concerning the catalytic wet oxidation (CWO) of a phenolic mixture in presence of hydrogen peroxide over a commercial activated carbon have been carried out [81]. This work represents an example of an integrated process which combines the Fenton reaction with a CWO with the aim to increase the efficiency of this last step.…”

Section: Transition Metal Oxidesmentioning

confidence: 99%

Heterogeneous catalytic degradation of phenolic substrates: Catalysts activity

Liotta

Gruttadauria

Carlo³

et al. 2009

Journal of Hazardous Materials

366

162

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“…Treatments for these organic pollutants are mainly physicochemical, although many have serious drawbacks, such as high installation and running costs, formation of secondary hazardous byproducts or incomplete mineralization [3][4][5]. However, biodegradation has become an emerging technological option to degrade such compounds with effective mineralisation and economical processing [6,7].…”

Section: Introductionmentioning

confidence: 99%

Aerobic biodegradation of a mixture of monosubstituted phenols in a sequencing batch reactor

Fernández

Suárez-Ojeda

Pérez

et al. 2013

Journal of Hazardous Materials

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Abatement of phenolic mixtures by catalytic wet oxidation enhanced by Fenton's pretreatment: Effect of H2O2 dosage and temperature

Cited by 44 publications

References 35 publications

Treatment of Antibiotics in Wastewater Using Advanced Oxidation Processes (AOPs)

Treatment of Antibiotics in Wastewater Using Advanced Oxidation Processes (AOPs)

Heterogeneous catalytic degradation of phenolic substrates: Catalysts activity

Aerobic biodegradation of a mixture of monosubstituted phenols in a sequencing batch reactor

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