Author(s)

Djamel Ghernaout^1,2*, Noureddine Elboughdiri^1,3, Ramzi Lajimi^4,5

¹Chemical Engineering Department, College of Engineering, University of Ha’il, Ha’il, Saudi Arabia.
²Chemical Engineering Department, Faculty of Engineering, University of Blida, Blida, Algeria.
³Chemical Engineering Process Department, National School of Engineers, Zrig Gabes, University of Gabes, Gabes, Tunisia.
⁴Department of Chemistry, College of Science, University of Ha’il, Ha’il, Saudi Arabia.
⁵Laboratory of Water, Membranes and Environmental Biotechnologies, Center of Researches and Water Technologies, Soliman, Tunisia.

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.

Electrocoagulation (EC), Electrochemical Disinfection (ED), Electric Field (EF), Mechanism, Pathogens, Water Treatment

Ghernaout, D. , Elboughdiri, N. and Lajimi, R. (2022) Electrocoagulation of Escherichia coli Culture: Effects of Temperature and Cell Concentration. Open Access Library Journal, 9, 1-23. doi: 10.4236/oalib.1108763.