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Effect of peracetic acid, ultraviolet radiation, nanofiltration-chlorine in the disinfection of a non conventional source of water (Tula Valley).
Water Sci Technol. 2008; 57(4):621-7.WS

Abstract

Water supply for human consumption requires certain quality that reduces health risks to consumers. In this sense, the process of disinfection plays an important role in the elimination of pathogenic microorganisms. Even though chlorination is the most applied process based on its effectiveness and cost, its application is being questioned considering the formation of disinfection by-products (DBPs). Therefore, alternative disinfectants are being evaluated and some treatment processes have been proposed to remove DBPs precursors (organic matter. This paper reports the results of disinfection of a non conventional source of water (aquifer recharged unintentionally with raw wastewater) with peracetic acid (PAA) and ultraviolet radiation (UV) as well as nanofiltration (NF) followed by chlorination to produce safe drinking water. The results showed that a dose of 2 mg/L PAA was needed to eliminate total and faecal coliforms. For UV light, a dose of 12.40 mWs/cm2 reduced total and faecal coliforms below the detection limit. On the other hand, chlorine demand of water before NF was 1.1-1.3 mg/L with a trihalomethane formation potential (THMFP) of 118.62 microg/L, in contrast with chlorination after NF where the demand was 0.5 mg/L and THMFP of 17.64 microg/L. The recommended scheme is nanofiltration + chlorination.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Trujillo J
Instituto de Ingeniería, UNAM, Ciudad Universitaria, Apartado Postal 70-472, 04510, Coyoacán, México, D.F. México. JTrujilloM@iingen.unam.mx
Barrios JA
No affiliation info available
Jimenez B
No affiliation info available

MeSH

ChlorineColony Count, MicrobialDisinfectantsDisinfectionEnterobacteriaceaeEnterococcusMexicoPeracetic AcidTrihalomethanesUltrafiltrationUltraviolet RaysWater PollutantsWater PurificationWater Supply

Pub Type(s)

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

Language

eng

PubMed ID

18360005

Citation

Trujillo, J, et al. "Effect of Peracetic Acid, Ultraviolet Radiation, Nanofiltration-chlorine in the Disinfection of a Non Conventional Source of Water (Tula Valley)." Water Science and Technology : a Journal of the International Association On Water Pollution Research, vol. 57, no. 4, 2008, pp. 621-7.
Trujillo J, Barrios JA, Jimenez B. Effect of peracetic acid, ultraviolet radiation, nanofiltration-chlorine in the disinfection of a non conventional source of water (Tula Valley). Water Sci Technol. 2008;57(4):621-7.
Trujillo, J., Barrios, J. A., & Jimenez, B. (2008). Effect of peracetic acid, ultraviolet radiation, nanofiltration-chlorine in the disinfection of a non conventional source of water (Tula Valley). Water Science and Technology : a Journal of the International Association On Water Pollution Research, 57(4), 621-7. https://doi.org/10.2166/wst.2008.181
Trujillo J, Barrios JA, Jimenez B. Effect of Peracetic Acid, Ultraviolet Radiation, Nanofiltration-chlorine in the Disinfection of a Non Conventional Source of Water (Tula Valley). Water Sci Technol. 2008;57(4):621-7. PubMed PMID: 18360005.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of peracetic acid, ultraviolet radiation, nanofiltration-chlorine in the disinfection of a non conventional source of water (Tula Valley). AU - Trujillo,J, AU - Barrios,J A, AU - Jimenez,B, PY - 2008/3/25/pubmed PY - 2008/8/30/medline PY - 2008/3/25/entrez SP - 621 EP - 7 JF - Water science and technology : a journal of the International Association on Water Pollution Research JO - Water Sci Technol VL - 57 IS - 4 N2 - Water supply for human consumption requires certain quality that reduces health risks to consumers. In this sense, the process of disinfection plays an important role in the elimination of pathogenic microorganisms. Even though chlorination is the most applied process based on its effectiveness and cost, its application is being questioned considering the formation of disinfection by-products (DBPs). Therefore, alternative disinfectants are being evaluated and some treatment processes have been proposed to remove DBPs precursors (organic matter. This paper reports the results of disinfection of a non conventional source of water (aquifer recharged unintentionally with raw wastewater) with peracetic acid (PAA) and ultraviolet radiation (UV) as well as nanofiltration (NF) followed by chlorination to produce safe drinking water. The results showed that a dose of 2 mg/L PAA was needed to eliminate total and faecal coliforms. For UV light, a dose of 12.40 mWs/cm2 reduced total and faecal coliforms below the detection limit. On the other hand, chlorine demand of water before NF was 1.1-1.3 mg/L with a trihalomethane formation potential (THMFP) of 118.62 microg/L, in contrast with chlorination after NF where the demand was 0.5 mg/L and THMFP of 17.64 microg/L. The recommended scheme is nanofiltration + chlorination. SN - 0273-1223 UR - https://www.unboundmedicine.com/medline/citation/18360005/Effect_of_peracetic_acid_ultraviolet_radiation_nanofiltration_chlorine_in_the_disinfection_of_a_non_conventional_source_of_water__Tula_Valley__ DB - PRIME DP - Unbound Medicine ER -