Effect of spark electric discharge between solid electrodes on waterстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 11 апреля 2019 г.
Аннотация:Generators of spark discharge in air are developed here in which the active factors affecting the object are plasma radiation and the active species formed in the discharge, which diffuse to the surface of the object. The initial effects observed in the water sample immediately after treatment are a decrease in pH and the formation of nitrous acid. In our experiments, two types of generators were used that yielded a minimum pH value and a maximum concentration of nitrous acid in the water after treatment. Processing was carried out in two modes: the first involved a discharge cavity that was fully open in the direction of the sample (with light), while the second was with a direction on the sample overlapping with an opaque insert (without light), but where the gaseous products were able to freely diffuse to the surface of the sample. Water samples were observed over 14 days after treatment, and the products formed under the action of a low-pressure mercury lamp ( = 253.7 nm) and plasma radiation were compared. We examined the mechanism of generation of the active species in the discharge itself, which can diffuse to the sample surface and be absorbed by water, and the species formed directly in the water under the action of plasma radiation, and analysed the role of plasma radiation in the formation of active species in water.