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Drinking Water Engineering and Science An interactive open-access journal
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https://doi.org/10.5194/dwes-2020-5
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/dwes-2020-5
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: research article 11 May 2020

Submitted as: research article | 11 May 2020

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This preprint is currently under review for the journal DWES.

Solar Distillation of Impure Water from Four Different Water Sources under South-Western Nigeria Climate

Saheed A. Adio1, Emmanuel A. Osowade1, Adam O. Muritala1, Adebayo A. Fadairo1, Kamar T. Oladepo2, Surajudeen O. Obayopo1, and Paul O. Fase1 Saheed A. Adio et al.
  • 1Thermofluids Research Group, Department of Mechanical Engineering, Obafemi Awolowo University, Ile-Ife
  • 2Water Engineering Research Laboratory, Civil Engineering Building, Department of Civil Engineering, Obafemi Awolowo University, Ile-Ife

Abstract. The inherent havoc caused by scarcity of potable water and transmission of water-borne diseases in some parts of Nigeria have created a public health concern. This study seeks to investigate water purification of four different water samples (namely: water from flowing river; freshly dug well or groundwater; rainwater from the rooftop; and heavily polluted dirty water) consumed by the people in the local community using solar desalination method. A single basin solar still was constructed and experimental studies were carried out to determine the influence of solar insolation and temperature variations on the yield of the distillate. The quality of the distillate was tested by measuring the total dissolved solid (TDS) and electrical conductivity. These were compared to World Health Organization (WHO) standard for drinkable water. These parameters were measured for each water sample before and after desalination to determine the efficiency of the solar still. Results showed a wide gap between the values of TDS and EC before and after desalination of the water samples. The values obtained were in accordance with the requirement of World Health Organization for quality drinkable water. The water becomes clear and less turbid after desalination.

Saheed A. Adio et al.

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Saheed A. Adio et al.

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Short summary
Providing potable drinkable water from saline or heavily polluted water using renewable energy has been further explored. Solar desalination, an eco-friendly, readily accessible and affordable technology. We have shown that there is a direct relationship and huge dependency of solar still daily distillate yield on the solar radiation intensity and the temperature difference between the condensing inner glass cover and the water. Hope of drinkable water for all through solar powered technology.
Providing potable drinkable water from saline or heavily polluted water using renewable energy...
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