Microbiological and Physico-Chemical Effectiveness of PUR Water Purifier on Different Water Sources

Abstract

Nizeyimana Fidele, Orach-Meza Faustino, Musoke Miph, Nkurikiyintwali Jean Marie Vianney, Mutabazi Placide, Niyitegeka Jean Pierre, Mukeshimana Jeanne d Arc, Niyonkuru Felix, Butoya Pasteur, Gatsinzi Mupenzi Jackline, Uwihoreye Potien, Ndayisaba Cleophas, Ngulube Dumisani James, Nyangezi Peter Mooni, Girizina Divine, Niyonsenga Theogene, Iradukunda Jean Marie Vianney and Igirukwayo Ildephonse

The study determined the correct amounts of PUR to use for different water sources in Bugesera district using a randomized control trial experiment. It was conducted on 21 water sources selected purposively from Akagera river marshy in Juru sector.

A total of 126 samples were collected of which 21 samples were used to treat water with one sachet (4-grams), 21 used to treat water using two sachets (8-grams), 42 used to determine physico-chemical contents of water and 42 samples used as controls.

Samples were tested for physico-chemical and bacteriological parameter. To determine the correct dose of PUR to be used, the study tested the effectiveness using the dose recommended by the manufacturer and secondly, the dose of 2 sachets per 15 liters of raw water.

The study found a significant reduction of residual chlorine and a significant reduction of E. coli in treated water sources (p<0.017 for the dose 1 t and p<0.030 for a dose 2). The study found that, a dose of 1 sachet (4-grams) is effective in eliminating E. coli and ammonia for all water sources. The dose of 2 sachets is effective for fecal coliforms and pH of all water sources but have find ineffective to reduce

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