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Comparison of different solar reactors for household disinfection of drinking water in developing countries: evaluation of their efficacy in relation to the waterborne enteropathogen Cryptosporidium parvum.
Trans R Soc Trop Med Hyg. 2012 Nov; 106(11):645-52.TR

Abstract

Solar water disinfection (SODIS) is a type of treatment that can significantly improve the microbiological quality of drinking water at household level and therefore prevent waterborne diseases in developing countries. Cryptosporidium parvum is an obligate protozoan parasite responsible for the diarrhoeal disease cryptosporidiosis in humans and animals. Recently, this parasite has been selected by the WHO as a reference pathogen for protozoan parasites in the evaluation of household water treatment options. In this study, the field efficacy of different static solar reactors [1.5 l transparent plastic polyethylene terephthalate (PET) bottles as well as 2.5 l borosilicate glass and 25 l methacrylate reactors fitted with compound parabolic concentrators (CPC)] for solar disinfection of turbid waters experimentally contaminated with C. parvum oocysts was compared. Potential oocyst viability was determined by inclusion/exclusion of the fluorogenic vital dye propidium iodide. The results demonstrate that static solar reactors fitted with CPCs are an excellent alternative to the conventional SODIS method with PET bottles. These reactors improved the efficacy of the SODIS method by enabling larger volumes of water to be treated and, in some cases, the C. parvum oocysts were rendered totally unviable, minimising the negative effects of turbidity.

Authors+Show Affiliations

Laboratorio de Parasitología, Departamento de Microbiología y Parasitología, Facultad de Farmacia, Campus Vida, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, A Coruña, Spain. hipolito.gomez@usc.esNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

23032082

Citation

Gómez-Couso, H, et al. "Comparison of Different Solar Reactors for Household Disinfection of Drinking Water in Developing Countries: Evaluation of Their Efficacy in Relation to the Waterborne Enteropathogen Cryptosporidium Parvum." Transactions of the Royal Society of Tropical Medicine and Hygiene, vol. 106, no. 11, 2012, pp. 645-52.
Gómez-Couso H, Fontán-Sainz M, Navntoft C, et al. Comparison of different solar reactors for household disinfection of drinking water in developing countries: evaluation of their efficacy in relation to the waterborne enteropathogen Cryptosporidium parvum. Trans R Soc Trop Med Hyg. 2012;106(11):645-52.
Gómez-Couso, H., Fontán-Sainz, M., Navntoft, C., Fernández-Ibáñez, P., & Ares-Mazás, E. (2012). Comparison of different solar reactors for household disinfection of drinking water in developing countries: evaluation of their efficacy in relation to the waterborne enteropathogen Cryptosporidium parvum. Transactions of the Royal Society of Tropical Medicine and Hygiene, 106(11), 645-52. https://doi.org/10.1016/j.trstmh.2012.07.014
Gómez-Couso H, et al. Comparison of Different Solar Reactors for Household Disinfection of Drinking Water in Developing Countries: Evaluation of Their Efficacy in Relation to the Waterborne Enteropathogen Cryptosporidium Parvum. Trans R Soc Trop Med Hyg. 2012;106(11):645-52. PubMed PMID: 23032082.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Comparison of different solar reactors for household disinfection of drinking water in developing countries: evaluation of their efficacy in relation to the waterborne enteropathogen Cryptosporidium parvum. AU - Gómez-Couso,H, AU - Fontán-Sainz,M, AU - Navntoft,C, AU - Fernández-Ibáñez,P, AU - Ares-Mazás,E, Y1 - 2012/09/29/ PY - 2012/03/15/received PY - 2012/07/31/revised PY - 2012/07/31/accepted PY - 2012/10/4/entrez PY - 2012/10/4/pubmed PY - 2013/5/17/medline SP - 645 EP - 52 JF - Transactions of the Royal Society of Tropical Medicine and Hygiene JO - Trans R Soc Trop Med Hyg VL - 106 IS - 11 N2 - Solar water disinfection (SODIS) is a type of treatment that can significantly improve the microbiological quality of drinking water at household level and therefore prevent waterborne diseases in developing countries. Cryptosporidium parvum is an obligate protozoan parasite responsible for the diarrhoeal disease cryptosporidiosis in humans and animals. Recently, this parasite has been selected by the WHO as a reference pathogen for protozoan parasites in the evaluation of household water treatment options. In this study, the field efficacy of different static solar reactors [1.5 l transparent plastic polyethylene terephthalate (PET) bottles as well as 2.5 l borosilicate glass and 25 l methacrylate reactors fitted with compound parabolic concentrators (CPC)] for solar disinfection of turbid waters experimentally contaminated with C. parvum oocysts was compared. Potential oocyst viability was determined by inclusion/exclusion of the fluorogenic vital dye propidium iodide. The results demonstrate that static solar reactors fitted with CPCs are an excellent alternative to the conventional SODIS method with PET bottles. These reactors improved the efficacy of the SODIS method by enabling larger volumes of water to be treated and, in some cases, the C. parvum oocysts were rendered totally unviable, minimising the negative effects of turbidity. SN - 1878-3503 UR - https://www.unboundmedicine.com/medline/citation/23032082/Comparison_of_different_solar_reactors_for_household_disinfection_of_drinking_water_in_developing_countries:_evaluation_of_their_efficacy_in_relation_to_the_waterborne_enteropathogen_Cryptosporidium_parvum_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0035-9203(12)00167-8 DB - PRIME DP - Unbound Medicine ER -