Efficiency of Chlorine Dioxide as a Bactericide

Abstract

We found chlorine dioxide to be a more effective disinfectant than chlorine in sewage effluent at p H 8.5. Chlorine dioxide was also found to be a more stable bactericide in relation to p H in the range studied.

The effects of biocides on the growth of aerophytic green algae (Chlorella sp.) isolated from a cave environment

“…It was suggested [57] that the effectiveness of chlorine dioxide is due to its adsorption by the cell wall, where chlorine dioxide reacts with enzymes containing sulfhydryl groups. In contrast, it was shown [58] that chlorine dioxide inhibits protein synthesis. Although both experiments were performed in bacterial cells, chlorine dioxide is likely to interact with phototrophic microorganisms similarly.…”

“…The effects of chlorine dioxide depend on the solution concentration, the presence of organic matter, pH and temperature. Depending on the chlorine dioxide concentration and the length of exposure, a 7-30% reduction of microorganisms can occur within 1 h [58]. It was found [59] that a 0.25 mg/L solution of chlorine dioxide inactivated a strain of E. coli in less than 60 s at pH 6.5.…”

“…It was found [59] that a 0.25 mg/L solution of chlorine dioxide inactivated a strain of E. coli in less than 60 s at pH 6.5. The same concentration, under the same conditions, inactivated a strain of E. coli in 25 s at pH 8.5 [58]. Although chlorine dioxide is effective against microorganisms at certain concentrations, temperatures and pH values, the effects of chlorine dioxide on the environment, different substrates and different groups of microorganisms remain unclear.…”

Disposable chlorine dioxide wipes for high-level disinfection in the ENT department: A systematic review

“…TTWS is an HLD procedure that uses ClO 2 , whose efficacy in terms of decontamination has been well known since the 60s [17,18]. Over the years, in-vitro and pre-clinical studies reported equal or greater bactericidal, mycobactericidal and sporicidal activities than traditional disinfectants in terms of viable count reduction and time needed to reach the HLD standard [7][8][9][10].…”

Novel insights into chlorine dioxide based disinfection mechanisms – investigation of the reaction with amino acids

“…The bactericidal effect of ClO 2 has been known for more than a century and has been demonstrated many times over the years, 19–23 however, it is not fully understood how ClO 2 inactivates pathogens. Previous research has shown that the reaction of chlorine dioxide leads to leakage of endo -plasmatic matter, which indicates membrane damage in E. coli .…”