Disinfection of Sewage Effluent with Peracetic Acid

Baldry, Mara; French, M. S.

doi:10.2166/wst.1989.0100

Cited by 45 publications

(26 citation statements)

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“…Its oxidation potential is larger than that of chlorine or chlorine dioxide. As a result of its bactericidal, virucidal, fungicidal, and sporicidal effectiveness, as demonstrated in various industrial and medical sectors, the use of PAA as a disinfectant for wastewater effluents has been drawing more attention in recent years ( Baldry and French, 1989a and b , Baldry et al, 1991 ; Fraser et al, 1984 ; Liberti and Notarnicola, 1999 , Mezzanotte et al, 2003 ; Veschetti et al, 2003 ; Wagner et al, 2002 ). Peracetic acid has a wide spectrum of antimicrobial activity, even in the presence of heterogeneous organic matter and with a low dependence on pH ( Kitis, 2004 ).…”

Section: Introductionmentioning

confidence: 99%

Peracetic Acid Disinfection: A Feasible Alternative to Wastewater Chlorination

Rossi

Antonelli²,

Mezzanotte³

et al. 2007

Water Environment Research

103

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The paper summarizes the results of a bench‐scale study to evaluate the feasibility of using peracetic acid (PAA) as a substitute for sodium hypochlorite both for discharge into surface water and for agricultural reuse. Trials were carried out with increasing doses (1, 2, 3, 5, 10, and 15 mg/L) and contact times (6, 12, 18, 36, 42, and 54 minutes) to study disinfectant decay and bacterial removal and regrowth, using fecal coliform and Escherichia coli (E. coli) as process efficiency indicators. Peracetic acid decay kinetics was evaluated in tap water and wastewater; in both cases, PAA decays according to first‐order kinetics with respect to time, and a correlation was found between PAA oxidative initial consumption and wastewater characteristics.     The PAA disinfection efficiency was correlated with operating parameters (active concentration and contact time), testing different kinetic models. Two data groups displaying a different behavior on the basis of initial active concentration ranges (1 to 2 mg/L and 5 to 15 mg/L, respectively) can be outlined. Both groups had a “tailing‐off” inactivation curve with respect to time, but the second one showed a greater inactivation rate. Moreover, the effect of contact time was greater at the lower doses.    Hom's model, used separately for the two data groups, was found to best fit experimental data, and the disinfectant active concentration appears to be the main factor affecting log‐survival ratios. Moreover, the S‐model better explains the initial resistance of E. coli, especially at low active concentrations (<2 mg/L) and short contact times (<12 minutes).     Microbial counts, performed by both traditional methods and flow cytometry, immediately and 5 hours after sample collection (both with or without residual PAA inactivation), showed that no appreciable regrowth took place after 5 hours, neither for coliform group bacteria, nor for total heterotrophic bacteria.

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Section: Introductionmentioning

confidence: 99%

Peracetic Acid Disinfection: A Feasible Alternative to Wastewater Chlorination

Rossi

Antonelli²,

Mezzanotte³

et al. 2007

Water Environment Research

103

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“…Moreover, PAA could play a role in disrupting the chemiosmotic function of the lipoprotein cytoplasmic membrane and transport through dislocation or rupture of cell walls ( Baldry and French, 1989 ; Leaper, 1984 ). Intracellular PAA could also oxidize essential enzymes, affecting vital biochemical pathways, active transport across membranes, and intracellular solute levels ( Fraser et al, 1984 ).…”

Section: Introductionmentioning

confidence: 99%

“…For tertiary effluents, a PAA concentration of 2 mg/L provided approximately a 2‐log reduction in fecal coliform concentrations ( Baldry and French, 1989 ). Significantly higher PAA doses are required to achieve a very high level of disinfection.…”

Section: Introductionmentioning

confidence: 99%

Wastewater Disinfection by Peracetic Acid: Assessment of Models for Tracking Residual Measurements and Inactivation

Santoro¹,

Gehr²,

Bartrand³

et al. 2007

Water Environment Research

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With its potential for low (if any) disinfection byproduct formation and easy retrofit for chlorine contactors, peracetic acid (PAA) or use of PAA in combination with other disinfectant technologies may be an attractive alternative to chlorine-based disinfection. Examples of systems that might benefit from use of PAA are water reuse schemes or plants discharging to sensitive receiving water bodies. Though PAA is in use in numerous wastewater treatment plants in Europe, its chemical kinetics, microbial inactivation rates, and mode of action against microorganisms are not thoroughly understood.This paper presents results from experimental studies of PAA demand, PAA decay, and microbial inactivation, with a complementary modeling analysis. Model results are used to evaluate techniques for measurement of PAA concentration and to develop hypotheses regarding the mode of action of PAA in bacterial inactivation. Kinetic and microbial inactivation rate data were collected for typical wastewaters and may be useful for engineers in evaluating whether to convert from chlorine to PAA disinfection. Water Environ. Res., 79, 775 (2007).

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“…Free radicals can react strongly with almost all biomolecules, resulting in damage to vital cell components and eventual cell death (Hayaishi et al, 1989). Peracetic acid is effective against a wide variety of microorganisms (Baldry, 1983;Baldry & French, 1989a;1989b;Baldry et al, 1991). Important components of bacterial cell membranes are damaged by oxidative disruption, sulphydryl (-SH) and sulphur (-SS) bonds within enzymes being affected (Fraser, 1986).…”

Section: Proxitane®5mentioning

confidence: 99%

Peroxygen disinfection ofpseudomonas aeruginosabiofilms on stainless steel discs

1998

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The disinfection of Pseudomonas aeruginosa biofilms on stainless steel (AISI 304) by a formulation of peracetic acid and hydrogen peroxide [Proxitane ® 5] has been studied using a laboratory scale rig incorporating a modified Robbins device. The influence of disinfectant temperature, flow rate and concentration has been characterised and comparisons made between biofilms established under static and nutrient flow conditions. Disinfection was enhanced with increased concentration of disinfectant (1-25 ppm peracetic acid, PAA) at all flow rates tested. The greatest reduction in viable cell number occurred at the highest temperature tested (50°C). At 30°C, the transition from laminar to turbulent flow (at 0.768 ms -1 ) was accompanied by a 99.7% increase in disinfection at 15 ppm PAA. This effect was not attributable to dislodgement of cells by increased fluid mechanical shear alone. Increased flow velocity (0 to 0.993 m s -1 ) and moderate (10°C) increments in temperature enhanced disinfection effectiveness in the Proxitane ® 5 concentration range corresponding to 5 ppm PAA to 25 ppm PAA. An insight into biofilm disinfection has been gained and the results are relevant to industrial Clean-in-Place processes.

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Disinfection of Sewage Effluent with Peracetic Acid

Cited by 45 publications

References 0 publications

Peracetic Acid Disinfection: A Feasible Alternative to Wastewater Chlorination

Peracetic Acid Disinfection: A Feasible Alternative to Wastewater Chlorination

Wastewater Disinfection by Peracetic Acid: Assessment of Models for Tracking Residual Measurements and Inactivation

Peroxygen disinfection ofpseudomonas aeruginosabiofilms on stainless steel discs

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