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Description: Comparative Study on the Antimicrobial Efficacy of Granulated TAED...
Comparative Study on the Antimicrobial Efficacy of Granulated TAED (Tetraacetylethylenediamine) Derived Peracetic Acid and Commercial Peracetic Acid in Urban Wastewaters
Abstract
Peracetic acid (PAA) is an organic peroxide that exhibits a wide range of antimicrobial properties. However, factors such as decomposition rate and on-site storage have prevented it from becoming a feasible option for most wastewater treatment plants, leaving room for alternative solutions such as peracetic acid derived from tetraacetylethylenediamine (TAED, TAED-PAA) and sodium percarbonate. Using peracetic acid generated from TAED (tetraacetylethylenediamine, TAED-PAA) and sodium percarbonate in situ provides the desired amount of PAA required for the end-use, thus reducing the risk associated with handling and storage compared to commercial PAA. To better understand the effectiveness of TAED-PAA in the wastewater industry, 10 L samples of secondary wastewater effluent were collected from 3 plants and treated with TAED-PAA or commercial liquid PAA under two distinct Ct calculation methodologies. The comparison between their disinfection efficacies and the effects on fourteen standard water quality parameters are reported. Variations observed in the results suggests the need for further in-depth testing before moving to full scale application.
Peracetic acid (PAA) is an organic peroxide that exhibits a wide range of antimicrobial properties. However, factors such as decomposition rate and on-site storage have prevented it from becoming a feasible option for most wastewater treatment plants, leaving room for alternative solutions such as peracetic acid derived from tetraacetylethylenediamine (TAED, TAED-PAA) and sodium percarbonate. Using peracetic acid generated from TAED (tetraacetylethylenediamine, TAED-PAA) and sodium percarbonate in situ provides the desired amount of PAA required for the end-use, thus reducing the risk associated with handling and storage compared to commercial PAA. To better understand the effectiveness of TAED-PAA in the wastewater industry, 10 L samples of secondary wastewater effluent were collected from 3 plants and treated with TAED-PAA or commercial liquid PAA under two distinct Ct calculation methodologies. The comparison between their disinfection efficacies and the effects on fourteen standard water quality parameters are reported. Variations observed in the results suggests the need for further in-depth testing before moving to full scale application.
SpeakerSpencer-Williams, Isaiah
Presentation time
09:10:00
09:30:00
Session time
08:30:00
09:50:00
SessionDisinfection on The Edge
Session number313
TopicDisinfection and Public Health, Research and Innovation, Water Reuse and Reclamation
TopicDisinfection and Public Health, Research and Innovation, Water Reuse and Reclamation
Author(s)
I. Spencer-WilliamsA. TheobaldC. CypcarL. CassonS. Haig,
Author(s)I. Spencer-Williams1; A. Theobald2; C. Cypcar2; L. Casson1; S. Haig1; ,3;
Author affiliation(s)Department of Civil and Environmental Engineering, University of Pittsburgh1; Lubrizol Corporation, Flintshire2; Department of Environmental and Occupational Health, University of Pittsburgh3
SourceProceedings of the Water Environment Federation
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Oct 2020
DOI10.2175/193864718825157851
Volume / Issue
Content sourceWEFTEC
Copyright2020
Word count21

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