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Evaluation of the Solar Water Disinfection Process (SODIS) Against Cryptosporidium parvum Using a 25-L Static Solar Reactor Fitted with a Compound Parabolic Collector (CPC)

Fontán-Sainz, María, Fernandez-Ibanez, P, Gómez-Couso, Hipólito and Ares-Mazás, Elvira (2012) Evaluation of the Solar Water Disinfection Process (SODIS) Against Cryptosporidium parvum Using a 25-L Static Solar Reactor Fitted with a Compound Parabolic Collector (CPC). The American Journal of Tropical Medicine and Hygiene, 86 (2). pp. 223-228. [Journal article]

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URL: http://dx.doi.org/10.4269/ajtmh.2012.11-0325

DOI: 10.4269/ajtmh.2012.11-0325

Abstract

Water samples of 0, 5, and 30 nephelometric turbidity units (NTU) spiked with Cryptosporidium parvum oocysts were exposed to natural sunlight using a 25-L static solar reactor fitted with a compound parabolic collector (CPC). The global oocyst viability was calculated by the evaluation of the inclusion/exclusion of the fluorogenic vital dye propidium iodide and the spontaneous excystation. After an exposure time of 8 hours, the global oocyst viabilities were 21.8 ` 3.1%, 31.3 ` 12.9%, and 45.0 ` 10.0% for turbidity levels of 0, 5, and 30 NTU, respectively, and these values were significantly lower (P < 0.05) that the initial global viability of the isolate (92.1 ` 0.9%). The 25-L static solar reactor that was evaluated can be an alternative system to the conventional solar water disinfection process for improving the micro-biological quality of drinking water on a household level, (> 10 times).

Item Type:Journal article
Keywords:Water disinfection; SODIS; solar reactors; compound parabolic collector
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Engineering
Research Institutes and Groups:Engineering Research Institute
Engineering Research Institute > Nanotechnology & Integrated BioEngineering Centre (NIBEC)
ID Code:37883
Deposited By: Dr Pilar Fernandez-Ibanez
Deposited On:16 May 2017 09:20
Last Modified:16 May 2017 09:20

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