Effects of persulfate and hydrogen peroxide on oxidation of oxalate by pulsed corona discharge; Chemical Engineering Journal; Vol. 411

Effects of persulfate and hydrogen peroxide on oxidation of oxalate by pulsed corona discharge

Dettagli Bibliografici
Parent link:	Chemical Engineering Journal Vol. 411.— 2021.— [128586, 9 p.]
Ente Autore:	Национальный исследовательский Томский политехнический университет Инженерная школа новых производственных технологий Научно-производственная лаборатория "Чистая вода"
Altri autori:	Tikker P. Priit, Dulova N. Niina, Kornev Ya. I. Yakov Ivanovich, Preys S. Sergey
Riassunto:	Title screen Application of gas-phase pulsed corona discharge (PCD) to oxidation of aqueous pollutants shows unequalled energy efficiency among advanced oxidation processes (AOPs). Improved AOPs often activate extrinsic oxidants. Experimental research was undertaken into sodium persulfate and hydrogen peroxide activation by PCD in oxidation of 1.11 mM oxalate. Oxidant and target compound concentration ratios, pH, gas-liquid contact surface and pulse repetition frequency were studied as control parameters. Results implicated a beneficial effect at oxalate/persulfate molar ratios from 1:0.1 to 1:1 in acidic medium with the optimum at 1:0.5, moderate contact surface and lower frequency. However, the observed synergism of PCD/PS combination decreased with increasing the initial pH of the treated solution. Hydrogen peroxide exhibited negative or neutral impact in all media. Non-assisted PCD proved the most energy efficient approach towards water treatment at neutral and alkaline conditions. Режим доступа: по договору с организацией-держателем ресурса
Lingua:	inglese
Pubblicazione:	2021
Soggetti:	электронный ресурс труды учёных ТПУ AOPplasma hydroxyl radicals gas-liquid contact surface oxalic acid плазма персульфаты гидроксильные радикалы контактные поверхности газ-жидкость щавелевая кислота
Accesso online:	https://doi.org/10.1016/j.cej.2021.128586
Natura:	Elettronico Capitolo di libro
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=665164

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