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Performic acid (PFA): tests on an advanced primary effluent show promising disinfection performance.
Water Sci Technol. 2009; 59(1):89-96.WS

Abstract

Performic acid, or PFA (CH(2)O(3)), is a well-known oxidizing agent and disinfectant in the medical field and food industry. It has recently become available on a commercial scale for potential use in wastewater disinfection. This study investigated its application to an advanced primary effluent which is recalcitrant to disinfection by UV and peracetic acid (PAA). Methods were developed for determining PFA concentrations in stock solutions as well as in residual concentrations in the wastewater. Batch and continuous-flow pilot studies showed a correlation between log fecal coliform removals and PFA doses. A PFA dose of approximately 3.4 mg/L and a contact time of 45 minutes could achieve 3-logs removal, and almost total disinfection could be achieved using a dose of 6 mg/L. The by-products of PFA addition are hydrogen peroxide and formic acid (CHOOH), neither of which is considered to be toxic to aquatic fauna at the doses required for disinfection.

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Authors+Show Affiliations

Gehr R
Department of Civil Engineering, McGill University, Montreal, QC H3A 2K6, Canada. ronald.gehr@mcgill.ca
Chen D
No affiliation info available
Moreau M
No affiliation info available

MeSH

DisinfectantsDisinfectionDose-Response Relationship, DrugEnterobacteriaceaeFecesFormatesHydrogen PeroxideTime FactorsUltraviolet RaysWaste Disposal, FluidWater PollutantsWater Purification

Pub Type(s)

Journal Article

Language

eng

PubMed ID

19151490

Citation

Gehr, R, et al. "Performic Acid (PFA): Tests On an Advanced Primary Effluent Show Promising Disinfection Performance." Water Science and Technology : a Journal of the International Association On Water Pollution Research, vol. 59, no. 1, 2009, pp. 89-96.
Gehr R, Chen D, Moreau M. Performic acid (PFA): tests on an advanced primary effluent show promising disinfection performance. Water Sci Technol. 2009;59(1):89-96.
Gehr, R., Chen, D., & Moreau, M. (2009). Performic acid (PFA): tests on an advanced primary effluent show promising disinfection performance. Water Science and Technology : a Journal of the International Association On Water Pollution Research, 59(1), 89-96. https://doi.org/10.2166/wst.2009.761
Gehr R, Chen D, Moreau M. Performic Acid (PFA): Tests On an Advanced Primary Effluent Show Promising Disinfection Performance. Water Sci Technol. 2009;59(1):89-96. PubMed PMID: 19151490.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Performic acid (PFA): tests on an advanced primary effluent show promising disinfection performance. AU - Gehr,R, AU - Chen,D, AU - Moreau,M, PY - 2009/1/20/entrez PY - 2009/1/20/pubmed PY - 2009/4/7/medline SP - 89 EP - 96 JF - Water science and technology : a journal of the International Association on Water Pollution Research JO - Water Sci Technol VL - 59 IS - 1 N2 - Performic acid, or PFA (CH(2)O(3)), is a well-known oxidizing agent and disinfectant in the medical field and food industry. It has recently become available on a commercial scale for potential use in wastewater disinfection. This study investigated its application to an advanced primary effluent which is recalcitrant to disinfection by UV and peracetic acid (PAA). Methods were developed for determining PFA concentrations in stock solutions as well as in residual concentrations in the wastewater. Batch and continuous-flow pilot studies showed a correlation between log fecal coliform removals and PFA doses. A PFA dose of approximately 3.4 mg/L and a contact time of 45 minutes could achieve 3-logs removal, and almost total disinfection could be achieved using a dose of 6 mg/L. The by-products of PFA addition are hydrogen peroxide and formic acid (CHOOH), neither of which is considered to be toxic to aquatic fauna at the doses required for disinfection. SN - 0273-1223 UR - https://www.unboundmedicine.com/medline/citation/19151490/Performic_acid__PFA_:_tests_on_an_advanced_primary_effluent_show_promising_disinfection_performance_ L2 - https://iwaponline.com/wst/article-lookup/doi/10.2166/wst.2009.761 DB - PRIME DP - Unbound Medicine ER -