AMBIENTUM BIOETHICA BIOLOGIA CHEMIA DIGITALIA DRAMATICA EDUCATIO ARTIS GYMNAST. ENGINEERING EPHEMERIDES EUROPAEA GEOGRAPHIA GEOLOGIA HISTORIA HISTORIA ARTIUM INFORMATICA IURISPRUDENTIA MATHEMATICA MUSICA NEGOTIA OECONOMICA PHILOLOGIA PHILOSOPHIA PHYSICA POLITICA PSYCHOLOGIA-PAEDAGOGIA SOCIOLOGIA THEOLOGIA CATHOLICA THEOLOGIA CATHOLICA LATIN THEOLOGIA GR.-CATH. VARAD THEOLOGIA ORTHODOXA THEOLOGIA REF. TRANSYLVAN
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Autori: DUMITRU VÂJU, GRIGORE VLAD, MIHAELA HETVARY, GABRIELA BĂISAN, SORIN CLAUDIU ULINICI, SEVER VARVARI.
The paper presents the electrochemical pre-treatment step followed by pre-aeration step, implemented within the flow of drinkable water treatment, from the potable water unit in the village Romuli, Bistrita-Nasaud county. The purpose of introducing electrochemical pre-treatment step, in the flow of a standard units of drinkable water is to increase the degree of water safety by removing different pollutants occurring accidentally in the water and to decrease the doses of reagents used in the chemical treatment step. Among the observed effects of electrochemical treatment by medium frequency pulsed currents in the water are getting active species (hydroxyl radicals, active oxygen, chloride ions, etc.), removing nitrate and chemical oxygen demand (COD), the appearance of an ultrasonic field between electrode which clean the system and mixt treated water. In addition, the electrochemical pretreatment step, favors coagulation, flocculation and precipitation in the chemical treatment step.In the paper are presented the water parameter in water treatment process and electrical model of electrochemical step using MATLAB software and SIMULINK Module.
Key words: electrochemical treatment, EAOP, multiple oxidants, nitrate, drink water
