scholarly journals Comparative study of wastewater disinfection by-product formation during wastewater disinfection by peracetic acid versus sodium hypochlorite

2012 ◽  
Author(s):  
Miaoyi Yan
Keyword(s):  
Comparative Study ◽  
Sodium Hypochlorite ◽  
Peracetic Acid ◽  
Product Formation ◽  
Acid Versus ◽  
Wastewater Disinfection

Pilot-plant comparative study of peracetic acid and sodium hypochlorite wastewater disinfection

2003 ◽  
Vol 37 (1) ◽  
pp. 78-94 ◽  
Author(s):  
E Veschetti ◽  
D Cutilli ◽  
L Bonadonna ◽  
R Briancesco ◽  
C Martini ◽  
...  
Keyword(s):  
Comparative Study ◽  
Sodium Hypochlorite ◽  
Peracetic Acid ◽  
Pilot Plant ◽  
Wastewater Disinfection

Inactivation of E. coli, Enterococcus spp., somatic coliphage, and Cryptosporidium parvum in wastewater by peracetic acid (PAA), sodium hypochlorite, and combined PAA-ultraviolet disinfection

2020 ◽  
Vol 6 (1) ◽  
pp. 197-209 ◽  
Author(s):  
Abdulrahman H. Hassaballah ◽  
Tanmay Bhatt ◽  
Jeremy Nyitrai ◽  
Ning Dai ◽  
Lauren Sassoubre
Keyword(s):  
Sodium Hypochlorite ◽  
Cryptosporidium Parvum ◽  
Peracetic Acid ◽  
Ecosystem Health ◽  
Ultraviolet Disinfection ◽  
E Coli ◽  
Enterococcus Spp ◽  
Wastewater Disinfection ◽  
Somatic Coliphage

Wastewater disinfection is important to protect human and ecosystem health.

Antimicrobial activity of Chlorhexidine, Peracetic acid and Sodium hypochlorite/etidronate irrigant solutions againstEnterococcus faecalisbiofilms

2015 ◽  
Vol 48 (12) ◽  
pp. 1188-1193 ◽  
Author(s):  
M. T. Arias-Moliz ◽  
R. Ordinola-Zapata ◽  
P. Baca ◽  
M. Ruiz-Linares ◽  
E. García García ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Sodium Hypochlorite ◽  
Peracetic Acid

Leakage of Endotoxins through the Endotoxin Retentive Filter: An in vitro Study

2022 ◽  
pp. 1-9
Author(s):  
Hiroshi Nozaki ◽  
Yoshihiro Tange ◽  
Yoji Inada ◽  
Takashi Uchino ◽  
Nakanobu Azuma
Keyword(s):  
Sodium Hypochlorite ◽  
Peracetic Acid ◽  
In Vitro Study ◽  
Dialysis Fluid ◽  
High Concentration ◽  
Membrane Pores ◽  
Polyether Sulfone ◽  
Repeated Use ◽  
High Concentrations

<b><i>Introduction:</i></b> Ultrapurification of dialysis fluid has enabled highly efficient dialysis treatments. Online hemodiafiltration is one such treatment that uses a purified dialysis fluid as a supplemental fluid. In this method, an endotoxin retentive filter (ETRF) is used in the final step of dialysis fluid purification, with the aim of preventing leakage of endotoxins. Sodium hypochlorite and peracetic acid are used as disinfecting agents for the dialysis fluid pipes containing the ETRF; however, the effects of these agents on ETRF membrane pores have not been fully clarified. <b><i>Methods:</i></b> Water permeability (flux) and endotoxin permeability were assessed in 3 types of ETRFs made with different membrane materials: polyester polymer alloy (PEPA), polyether sulfone (PES), and polysulfone (PS). High-concentration sodium hypochlorite and 2 types of peracetic acid were used as disinfecting agents, and the changes in flux and the endotoxin sieving coefficient (SC) were measured. <b><i>Results:</i></b> After repeated use of high concentrations of sodium hypochlorite and peracetic acid, the PEPA and PES ETRFs did not permit passage of endotoxins, regardless of their flux. However, in the PS ETRF, the flux and endotoxin SC increased with the number of cleaning cycles. No differences were observed according to the concentration of peracetic acid disinfecting agents. <b><i>Conclusion:</i></b> PEPA and PES ETRFs completely prevent endotoxin leakage and can be disinfected at concentrations higher than the conventionally recommended concentration without affecting pore expansion. Even new PS ETRFs have low levels of endotoxin leakage, which increase after disinfection cycles using sodium hypochlorite and peracetic acid.

Comparative Evaluation of the Sterilization Effect of Six Kinds of Commercial Disinfectants against Four Pathogenic Bacteria

2021 ◽  
Author(s):  
Wenxia Wang ◽  
Xiaoting Liang ◽  
Junxia Zheng ◽  
Qi He
Keyword(s):  
Sodium Hypochlorite ◽  
Peracetic Acid ◽  
Pathogenic Bacteria ◽  
Antibacterial Effect ◽  
Antibacterial Properties ◽  
Water Soluble ◽  
Absolute Ethanol ◽  
Dilution Method ◽  
Clostridium Sporogenes ◽  
Sterilization Effect

Abstract In this work, we systematically investigate the sterilization effect of six kinds of commonly used commercial disinfectants, including the DuPont Virkon disinfectant, peracetic acid disinfectant, sodium hypochlorite, bromogeramine disinfectant, water-soluble allicin, and absolute ethanol, against the Escherichia coli, Staphylococcus aureus, Monilia albican and Clostridium sporogenes. The inhibition zone was used to qualitatively determine the antibacterial effects of the six disinfectants, and then the minimum two-fold dilution method was used to quantitatively determine the minimum inhibitory concentration and minimum bactericidal concentration of the six disinfectants on the four pathogens. The result illustrated that the antibacterial effect of peracetic acid disinfectant is the best, and clostridium sporogenes is the most sensitive to it, followed by bromogermine disinfectant, which can inhibit the four pathogenic bacteria at the concentration recommended by the manufacturer. The antibacterial effect of DuPont Virkon disinfectant, sodium hypochlorite, water-soluble allicin and absolute ethanol is not as good as expected, and cannot inhibit the four kinds of pathogenic bacteria at the recommended concentration. In summary, the antibacterial effect of peracetic acid disinfectant is the strongest, followed by the bromogermine disinfectant, DuPont Virkon disinfectant, sodium hypochlorite and water-soluble allicin. The absolute ethanol exhibits the worst antibacterial properties.

Evaluation of a Sporicidal Peracetic Acid/Hydrogen Peroxide–Based Daily Disinfectant Cleaner

2014 ◽  
Vol 35 (11) ◽  
pp. 1414-1416 ◽  
Author(s):  
Abhishek Deshpande ◽  
Thriveen S. C. Mana ◽  
Jennifer L. Cadnum ◽  
Annette C. Jencson ◽  
Brett Sitzlar ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Staphylococcus Aureus ◽  
Clostridium Difficile ◽  
Sodium Hypochlorite ◽  
Peracetic Acid ◽  
Infect Control Hosp ◽  
Organic Load ◽  
Methicillin Resistant

OxyCide Daily Disinfectant Cleaner, a novel peracetic acid/hydrogen peroxide–based sporicidal disinfectant, was as effective as sodium hypochlorite for in vitro killing of Clostridium difficile spores, methicillin-resistant Staphylococcus aureus, and vancomcyin-resistant enterococci. OxyCide was minimally affected by organic load and was effective in reducing pathogen contamination in isolation roomsInfect Control Hosp Epidemiol 2014;35(11):1414–1416

Biofilm Formation and Biocides Sensitivity of Pseudomonas marginalis Isolated from a Maple Sap Collection System

2006 ◽  
Vol 69 (10) ◽  
pp. 2411-2416 ◽  
Author(s):  
L. LAGACÉ ◽  
M. JACQUES ◽  
A. A. MAFU ◽  
D. ROY
Keyword(s):  
Sodium Hypochlorite ◽  
Peracetic Acid ◽  
Biofilm Formation ◽  
Planktonic Cells ◽  
Collection System ◽  
Biofilm Growth ◽  
Biofilm Production ◽  
Different Temperatures ◽  
Maple Sap ◽  
Scanning Electron

The susceptibility of planktonic and biofilm cells of Pseudomonas marginalis toward four commonly used biocides at different temperatures (15 and 30°C) and biofilm growth times (24 and 48 h) was assessed. Using the MBEC biofilm device, biofilm production in maple sap was shown to be highly reproducible for each set of conditions tested. Biofilm formation was influenced by growth temperature and time. A temperature of 15°C and incubation time of 24 h yielded fewer CFU per peg and showed fewer adhered cells and typical biofilm structures, based on scanning electron microscopy observations as compared with other conditions. Minimal biofilm eradication concentration values for P. marginalis were significantly greater (P &lt; 0.001) than were MBCs for planktonic cells and for every biocide tested, with the exception of minimal biofilm eradication concentration values for peracetic acid at 15°C and 24 h. Sodium hypochlorite and peracetic acid sanitizers were able to eliminate P. marginalis biofilms at lower concentrations as compared with hydrogen peroxide– and quaternary ammonium– based sanitizers (P &lt; 0.001). According to the results obtained, sodium hypochlorite and peracetic acid sanitizers would be more appropriate for maple sap collection system sanitation.

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