Abstract
In this study, the experimental results of the concentration of Salmonella species in water exposed to magnetic flux density are presented. Water samples were collected from River Njoro, Nakuru County, Kenya. The initial Salmonella species counts for the samples were obtained using Membrane Filtration techniques. The samples were then exposed to different magnetic flux densities (2mT, 6mT and 10mT) at time intervals of 6 hours and 18 hours for each magnetic flux. Membrane filtration was also done after magnetic treatment of the samples. The data obtained was photographed and presented in tables and bar graphs. The maximum disinfection efficiency was 77 % for bacteria exposed to a magnetic flux of 10 mT for 6 hours. This study proved that magnetic field can be used as inhibitory factor against the Salmonella species.
Highlights
The availability of a safe drinking water has been a concern for mankind all over the world
In 2012, World Health Organization indicated in their report that about 3.41 million people die each year from water, sanitation and hygiene-related causes [2]
This study investigated the biological effect of magnetic fields, as a component of the non-ionizing radiations, on a unicellular system
Summary
The availability of a safe drinking water has been a concern for mankind all over the world. Study has indicated that the microbial quality of the River Njoro water sources is poor and unacceptable for human consumption due to consistent increase in total and fecal coliforms and due to pathogenic loading downstream [5]. This water is contaminated with pathogens which lead to widespread of acute and chronic illnesses which are major cause of death and misery. In 2012, World Health Organization indicated in their report that about 3.41 million people die each year from water, sanitation and hygiene-related causes [2]. The water and sanitation crisis claims more lives through disease than any war claims through guns [3]
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