Plasma-based water treatment: development of a general mechanistic model to estimate the treatability of different types of contaminants

The 2017 Plasma Roadmap: Low temperature plasma science and technology

“…Model predictions should be verified by bulk liquid and bulk gas concentration measurements of stable species. Computer simulations based on density functional theory have shown to be quite useful in studying the orientation of organic molecules at the plasma-liquid interface and determining the spatial molecular concentration distribution in the bulk liquid [104]. Physical transport processes of a moving fluid, such as mass and momentum transfer (i.e.…”

White paper on plasma for medicine and hygiene: Future in plasma health sciences

“…This is not limited to microorganisms but may also include the inactivation or removal of other dangerous or at least unwanted air pollutants including nitrogen oxides or volatile organic compounds . Similarly, plasma can be used both for microbiological decontamination but also for removal of organic substances, for example, drugs, from wastewater . This is based on the well‐known transfer of chemical reactivity into water by atmospheric‐pressure plasma treatment .…”

Removal of Poly- and Per-Fluorinated Compounds from Ion Exchange Regenerant Still Bottom Samples in a Plasma Reactor

“…Our recent studies have shown that an enhanced contact (EC) plasma reactor is effective at degrading PFAS in groundwater. , In this reactor, PFAS compounds are transported to the gas–liquid interphase using argon gas bubbles, where they are effectively degraded by plasma. Plasma produces numerous oxidative (e.g., • OH, O, HO 2 • , O 2 •– , O 2 , H 2 O 2 ) and reductive species (e.g., free and aqueous electrons e aq – , H • ) of which the latter play a key role in degrading PFAAs. , Performance indicators (PFOA removal efficiency and defluorination efficiency) show that the effectiveness of the EC reactor for PFAS destruction is greater than other leading water treatment technologies …”

“…and reductive species (e.g., free and aqueous electrons e aq − , H • ) of which the latter play a key role in degrading PFAAs. 23,25 Performance indicators (PFOA removal efficiency and defluorination efficiency) show that the effectiveness of the EC reactor for PFAS destruction is greater than other leading water treatment technologies. 23 One approach in developing a complete PFAS treatment solution, with minimal waste production, is to couple the plasma technology with IX treatment using regenerable resin that has been proven to efficiently remove and concentrate PFAS.…”