Insights into the removal of microplastics and microfibres by Advanced Oxidation Processes

Santos, Naiara de Oliveira Dos; Busquets, Rosa; Campos, Luiza C.

doi:10.1016/j.scitotenv.2022.160665

Cited by 42 publications

(15 citation statements)

References 112 publications

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“…The hydrothermal coupled Fenton system achieved 95.9% weight loss in 16 h and 75.6% mineralization efficiency in 12 h for ultrahigh‐molecular weight PE MPs (Hu et al, 2022). Fenton‐based processes using temperatures >100°C, reaction times 5 h and initial pH ≤ 3 can remove MPs more effectively, with MP weight losses of up to 96% (Dos Santos, Busquets, & Campos, 2023). The AOPs can be validated using correlation models and simulating the aging process in freshwater samples (Liu et al, 2019).…”

Section: Fenton Reaction For Mp Degradationmentioning

confidence: 99%

Advanced oxidation processes for the degradation of microplastics from the environment: A review

Gayathri

Joseph

Mohan

et al. 2023

Water & Environment J

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Microplastic pollution has rapidly become one of the major global environmental concerns because of its low biodegradability rate and threat to biota. Although many treatment methods are reported, the advanced oxidation process (AOP) is recommended because of its capacity to completely mineralize organic pollutants into carbon dioxide and water. This review gathers published investigations on recent AOP techniques (UV/solar photolysis and photocatalysis (PC), UV/H2O2, Fenton reaction, sonolysis, heat‐activated persulphate and peroxymonosulphate) tested for the degradation of microplastics from water and wastewater. The review lists 54 studies, by far the most comprehensive collection on the AOP‐driven treatment of microplastics, and is also the first to explain the methods related to the ultrasonic degradation of microplastics. We found that all the reviewed AOP techniques achieved satisfying performance in the degradation of microplastics. This paper proposes recommendations for future research based on the review.

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Section: Fenton Reaction For Mp Degradationmentioning

confidence: 99%

Advanced oxidation processes for the degradation of microplastics from the environment: A review

Gayathri

Joseph

Mohan

et al. 2023

Water & Environment J

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“…19 Among the possible solutions, advanced oxidation processes could be implemented in wastewater treatment plants to effectively eliminate microplastics as the action of strong oxidising agents can be exploited to decompose longchain polymers to smaller molecules up to complete mineralisation to H 2 O and CO 2 . 20,21 The application of AOPs has been proposed for the treatment of wastewaters with a high content of microplastics such as those derived from household washing machines and laundries. [22][23][24] Among the AOPs, electrochemical treatment can produce different oxidising species such as OH radicals, ozone, and hydrogen peroxide as well as chlorine and hypochlorous acid, which are able to oxidise the pollutants.…”

Section: Introductionmentioning

confidence: 99%

“…Among the possible solutions, advanced oxidation processes could be implemented in wastewater treatment plants to effectively eliminate microplastics as the action of strong oxidising agents can be exploited to decompose long-chain polymers to smaller molecules up to complete mineralisation to H 2 O and CO 2 . 20,21…”

Section: Introductionmentioning

confidence: 99%

Electrochemical removal of PET and PE microplastics for wastewater treatment

Mais,

Melis,

Vacca

et al. 2024

Environ. Sci.: Water Res. Technol.

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“…Advanced Oxidation Processes (AOPs) are methods involve the insitu production of oxidative radicals which initiates a cascade of complex reactions leading to the conversion of complex organic compounds in to simpler ones (Dos Santos et al 2023). In case of persistant organic contaminants (POC) like plastic particles, which cannot be directly degraded by microorganisms due to their high molecular weight and hydrophobic nature, addition of hydroxyl and carbonyl groups to the structure can increase their hydrophilicity, making them susceptible to biodegradation (Fitri et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Oxidation of polystyrene nanoparticles using ozonation under catalytic and non-catalytic conditions

Ajayaghosh,

Farissi

et al. 2023

Preprint

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Plastic pollution surfaced as a major issue across the globe affecting all compartments of the environment alike. The viciousness of plastics further elevates as they breaks down to form micro and nano sized particles which can easily enter into the body of organisms through water, air and food. These particles persist in the water stream even after conventional waste water and drinking water treatment processes and can easily get accumulate in living organisms including humans. Advanced oxidation processes (AOPs) emerged as an effective strategy for the disintegration leading to even complete mineralisation of many persistant pollutants present in the environment. Various AOP methods like photo-degradation, ozonation, electro-fenton and anodic oxidation are studied for their applicability in degrading synthetic polymer particles also. The present study evaluates the oxidative removal of polystyrene nanoparticles by ozone based oxidation in aqueous medium. Catalytic ozonation was also carried out using TiO2 and V2O5 as catalysts. Particles of 200-400nm size were synthesised by nanoprecipitation technique, suspended in aquadest of variable pH conditions (5, 7 and 9) and subjected to ozonation for 60 minutes. DLS analysis revealed about 75% size reduction of particles upon ozonation. The reduction of organic carbon content in the samples after treatment was evaluated through TOC analysis and highest TOC removal rate of 97.78% was obtained with TiO2 as catalyst at pH 7. TiO2 was an effective catalyst under all pH conditions while catalytic activity of V2O5 found to be increasing with the increase in pH. The results relieved the possibility of using ozonation as a method of nanoplastic remediation from water.

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Insights into the removal of microplastics and microfibres by Advanced Oxidation Processes

Cited by 42 publications

References 112 publications

Advanced oxidation processes for the degradation of microplastics from the environment: A review

Advanced oxidation processes for the degradation of microplastics from the environment: A review

Electrochemical removal of PET and PE microplastics for wastewater treatment

Oxidation of polystyrene nanoparticles using ozonation under catalytic and non-catalytic conditions

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