TITLE:
Electrocoagulation of Escherichia coli Culture: Effects of Temperature and Cell Concentration
AUTHORS:
Djamel Ghernaout, Noureddine Elboughdiri, Ramzi Lajimi
KEYWORDS:
Electrocoagulation (EC), Electrochemical Disinfection (ED), Electric Field (EF), Mechanism, Pathogens, Water Treatment
JOURNAL NAME:
Open Access Library Journal,
Vol.9 No.5,
May
27,
2022
ABSTRACT: Laboratory tests were performed to examine electrocoagulation (EC) as electrochemical disinfection of synthetic wastewater infected by non-pathogenic Escherichia coli species in batch culture and two surface waters employing ordinary steel, stainless steel and aluminum electrodes. Aluminum electrodes were observed most performant in killing E. coli cells relatively with stainless steel and ordinary steel electrodes. About thirty minutes are requested for EC to attain total E. coli cell elimination. Identical performance toward algae and coliform removal in two kinds of surface waters was noticed. EC technology relies on charge neutralization of pathogens via electrical field application and Al3+ or Fe2+/3+ followed by their flotation thanks to hydrogen and/or oxygen bubbles or flocculation/decantation thanks to Al(OH)3(s) or Fe(OH)2(s)/Fe(OH)3(s) flocs.