H2020Индивидуална стипендия2020–2022

PFCsByPlasCat · Perfluorinated Organic Compounds (PFCs) Degradation using Non-Thermal Plasma Enhanced by Boron Doped Graphene Oxide as Catalyst

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2020-09-01 → 2022-10-15
Финансиране от ЕС: 183 473 €
Участници: 1
Схема: MSCA-IF

Линиите свързват координатора с партньорите.

Накратко на български

Разграждането на устойчиви химикали (PFAS), като тези в питейната вода, се изследва чрез студена плазма и специален катализатор. Това е важно, защото стандартните методи за пречистване не ги премахват, а тези вещества се натрупват в организма и вредят на здравето.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Perfluorinated Organic Compounds (PFCs) Degradation using Non-Thermal Plasma Enhanced by Boron Doped Graphene Oxide as Catalyst

Perfluorinated organic compounds (PFCs) are man-made chemicals which have spread in the environment, causing major concern nowadays due to their persistency, bioaccumulation and ascertained or suspected effects on human health. In 2019 US EPA extended the focus of regulatory measures to include both per- and polyfluoroalkyl substances, indicated by the acronym PFAS. PFAS are considered to be one of the major environmental pollution risks to humans and the biota of the 21st century. Perfluorooctanoic acid (PFOA) and perfluorooctanesulfonate (PFOS) are the most common PFAS found in drinking water supplies and groundwater. In 2019 they were included in Annex A of the Stockholm Convention, which lists chemicals prohibited for use and production. The European Parliament and Council have established a maximum limit for total PFAS in water intended for human consumption of 100 ng/L in Directive 2020/2184/EU. In addition, PFOA and PFOS are included in the emerging compounds list by USEPA, which has recently lowered their health advisory levels in drinking water to 0.004 ppt and 0.02 ppt, respectively. Traditional water treatment stages are ineffective towards PFAS contaminants. Current methods for decontamination of PFAS polluted water involve their physical removal by adsorption on activated charcoal, a procedure which generates new PFAS-containing wastes, additional associated disposal costs and environmental issues. Therefore, searching for new treatment technologies capable of degrading PFOA and PFOS is essential, especially based on advanced oxidation/reduction processes (AORPs). Among the approaches being considered, cold plasma stands out for its unique capabilities of generating in situ short-lived, very reactive oxidizing and reducing species such as electrons and the hydroxyl radical. The overall research objective of the PFCsByPlasCat project consists in studying and developing a process based on the combination of cold plasma and nanocatalysts (plas+cat process) for treating PFAS-contaminated water.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

The extensive use of perfluorinated compounds (PFCs) in many industrial/commercial applications, as surfactants, emulsifiers, etc., and their high chemical stability are responsible for their ubiquitous presence in the environment. Specifically, the contamination of groundwater and drinking water supplies by perfluorooctanoic acid (PFOA) and perfluorooctanesulfonate (PFOS) is raising great concern as more data on PFCs toxicity in humans and wildlife is becoming available. Thus, a parallel surge in monitoring campaigns and in the search for innovative water treatment technologies for PFCs is required. Since PFCs are highly resistant to degradation by standard chemical and biological processes, advanced oxidation processes (AOPs) are being considered and, including Fenton, ozone and UV irradiation with catalysts, applied so far with limited success. Among innovative AOPs, air non-thermal plasmas (NTP), which produce several reactive species at a time, have been recently tested for the treatment of PFOA/PFOS yielding promising results. The proposed research aims to advance the state of art by developing an innovative treatment process for PFCs in which NTP is applied in combination with novel boron-doped graphene oxide (B-GO) nano photocatalysts. The catalysts synthesized and characterized by the Researcher will be tested on prepared solutions of PFOA and PFOS using various NTP reactors which are available in the beneficiary laboratory. The best catalyst-reactor combination will thus be identified; conditions and parameters will be optimized to maximize the synergy between plasma and catalyst and the efficiency of the novel hybrid plas-cat process. Real samples of contaminated groundwater will be tested to verify the process applicability to complex matrices. For excellence of research, basic guidelines will be drawn and disseminated for implementing an efficient hybrid plas-cat process in view of auspicable scaling-up and technology transfer to stakeholders.

Оригинален текст от CORDIS (на английски).

Участници

UNIVERSITA DEGLI STUDI DI PADOVA · PadovaКоординаторИталия