Hrvatske vode, Vol. 28 No. 114, 2020.
Prethodno priopćenje
Electrochemical disinfection of hospital wastewater
Anđelina Bubalo
orcid.org/0000-0002-0333-5426
; Dok-ing Energo d.o.o., Zagreb, Hrvatska
Morana Drušković
orcid.org/0000-0002-3745-8002
; Dok-ing Energo d.o.o., Zagreb, Hrvatska
Jasna Hrenović
orcid.org/0000-0001-8513-3993
; Sveučilište u Zagrebu, Prirodoslovno-matematički fakultet, Zagreb, Hrvatska
Sažetak
Carbapenem-resistant bacteria (CRB) are the leading cause of emergent hospital-acquired infections worldwide. The CRB have been found in hospital wastewater, where they spread through the common sewer into the environment. The presence of CRB in the environment poses a public health risk. The paper explores the efficiency of electrochemical wastewater disinfection to remove emergent CRB. Low voltage direct current (DC) showed a bactericidal effect on the pure culture of CRB Acinetobacter baumannii in saline. After the reaction time of 300 s of implemented low voltage DC, 25 % of CRB was removed from raw hospital wastewater. There was a significant reduction in the concentration of ammonium ion (NH4+), the pH value of water remained neutral and the water temperature did not exceed 36℃. The disinfection of hospital wastewater with electrochemical processes appears to be a promising alternative to insufficiently efficient chemical disinfection of water in the prevention of the CRM spread into the environment.
Ključne riječi
bacteria, pathogens, antibiotic resistance, electrochemical disinfection, direct current
Hrčak ID:
254507
URI
Datum izdavanja:
30.12.2020.
Posjeta: 1.419 *