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Chemical disinfection of combined sewer overflow waters using performic acid or peracetic acids.
Sci Total Environ. 2014 Aug 15; 490:1065-72.ST

Abstract

We investigated the possibility of applying performic acid (PFA) and peracetic acid (PAA) for disinfection of combined sewer overflow (CSO) in existing CSO management infrastructures. The disinfection power of PFA and PAA towards Escherichia coli (E. coli) and Enterococcus was studied in batch-scale and pre-field experiments. In the batch-scale experiment, 2.5 mg L(-1) PAA removed approximately 4 log unit of E. coli and Enterococcus from CSO with a 360 min contact time. The removal of E. coli and Enterococcus from CSO was always around or above 3 log units using 2-4 mg L(-1) PFA; with a 20 min contact time in both batch-scale and pre-field experiments. There was no toxicological effect measured by Vibrio fischeri when CSO was disinfected with PFA; a slight toxic effect was observed on CSO disinfected with PAA. When the design for PFA based disinfection was applied to CSO collected from an authentic event, the disinfection efficiencies were confirmed and degradation rates were slightly higher than predicted in simulated CSO.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Chhetri RK
Department of Environmental Engineering, Technical University of Denmark, Bygningstorvet, Building 115, 2800 Kgs. Lyngby, Denmark.
Thornberg D
Udviklingssamarbejdet, c/o, Lynettefællesskabet, Refshalevej 250, 1432 Copenhagen, Denmark.
Berner J
Kemira Water Danmark A/S, G-vej 3, 2300 Copenhagen, Denmark.
Gramstad R
Kemira Kemi AB, Industrigatan 83, Box 902, 25109 Helsingborg, Sweden.
Öjstedt U
Kemira Kemi AB, Industrigatan 83, Box 902, 25109 Helsingborg, Sweden.
Sharma AK
Department of Environmental Engineering, Technical University of Denmark, Bygningstorvet, Building 115, 2800 Kgs. Lyngby, Denmark.
Andersen HR
Department of Environmental Engineering, Technical University of Denmark, Bygningstorvet, Building 115, 2800 Kgs. Lyngby, Denmark. Electronic address: Henrik@ndersen.net.

MeSH

DisinfectantsDisinfectionDrainage, SanitaryFormatesPeracetic AcidWaste Disposal, FluidWastewaterWater MicrobiologyWater Pollutants, Chemical

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

24918873

Citation

Chhetri, Ravi Kumar, et al. "Chemical Disinfection of Combined Sewer Overflow Waters Using Performic Acid or Peracetic Acids." The Science of the Total Environment, vol. 490, 2014, pp. 1065-72.
Chhetri RK, Thornberg D, Berner J, et al. Chemical disinfection of combined sewer overflow waters using performic acid or peracetic acids. Sci Total Environ. 2014;490:1065-72.
Chhetri, R. K., Thornberg, D., Berner, J., Gramstad, R., Öjstedt, U., Sharma, A. K., & Andersen, H. R. (2014). Chemical disinfection of combined sewer overflow waters using performic acid or peracetic acids. The Science of the Total Environment, 490, 1065-72. https://doi.org/10.1016/j.scitotenv.2014.05.079
Chhetri RK, et al. Chemical Disinfection of Combined Sewer Overflow Waters Using Performic Acid or Peracetic Acids. Sci Total Environ. 2014 Aug 15;490:1065-72. PubMed PMID: 24918873.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Chemical disinfection of combined sewer overflow waters using performic acid or peracetic acids. AU - Chhetri,Ravi Kumar, AU - Thornberg,Dines, AU - Berner,Jesper, AU - Gramstad,Robin, AU - Öjstedt,Ulrik, AU - Sharma,Anitha Kumari, AU - Andersen,Henrik Rasmus, Y1 - 2014/06/09/ PY - 2014/02/08/received PY - 2014/05/16/revised PY - 2014/05/18/accepted PY - 2014/6/12/entrez PY - 2014/6/12/pubmed PY - 2014/12/23/medline KW - Combined sewer overflow KW - Disinfection KW - Enterococcus KW - Escherichia coli KW - Peracetic acid KW - Performic acid SP - 1065 EP - 72 JF - The Science of the total environment JO - Sci Total Environ VL - 490 N2 - We investigated the possibility of applying performic acid (PFA) and peracetic acid (PAA) for disinfection of combined sewer overflow (CSO) in existing CSO management infrastructures. The disinfection power of PFA and PAA towards Escherichia coli (E. coli) and Enterococcus was studied in batch-scale and pre-field experiments. In the batch-scale experiment, 2.5 mg L(-1) PAA removed approximately 4 log unit of E. coli and Enterococcus from CSO with a 360 min contact time. The removal of E. coli and Enterococcus from CSO was always around or above 3 log units using 2-4 mg L(-1) PFA; with a 20 min contact time in both batch-scale and pre-field experiments. There was no toxicological effect measured by Vibrio fischeri when CSO was disinfected with PFA; a slight toxic effect was observed on CSO disinfected with PAA. When the design for PFA based disinfection was applied to CSO collected from an authentic event, the disinfection efficiencies were confirmed and degradation rates were slightly higher than predicted in simulated CSO. SN - 1879-1026 UR - https://www.unboundmedicine.com/medline/citation/24918873/Chemical_disinfection_of_combined_sewer_overflow_waters_using_performic_acid_or_peracetic_acids_ DB - PRIME DP - Unbound Medicine ER -