سلاله منصوري

Air plasma invariably consists of essential reactive oxygen and nitrogen species necessary for agricultural purposes, thus making it an interesting research subject. When water is exposed to the plasma arc, its composition changes and forms Plasma Activated Water (PAW). Research studies have proved that PAW provides imperative nutrients to plants. The design and construction of several plasma configurations, including arc and DBD systems, will be first discussed in this thesis. We have configured a power supply to provide the necessary voltage for electrical discharges from generators like Marks and ZVS Flyback Driver. We studied excited species and the density of plasma using spectroscopy in order to characterize the plasma. Simulations have been performed before and after plasma formation to establish the electrical field and energy potential. Raman spectroscopy, nitrate and nitrite concentration determinations and analysis of the water's physicochemical characteristics were used for comparing activated waters in different conditions. In order to eva‎luate the effects of PAW, we have performed a growth investigation on plants like Hyacinths, Tulips and Pilea cadierei and seed germination in lentils. The study revealed that PAW may influence the plant's growth parameters when nitrogenous and oxygen compounds are added to water. It is generally accepted that PAW has considerably increased flower and plant growth by not using chemical substances that may be detrimental to nature.

طيف‌سنجي , ژنراتور ماركس , تخليه سد دي‌الكتريك , تخليه الكتريكي آرك , آب فعال شده با پلاسما

Arc discharge , Dielectric barrier discharge , Marx generator , Plasma activated water , Spectroscopy

Solaleh Mansory

Dr. Maryam Bahreini