International Science Community Association Research Journal of Engineering Sciences 2278-9472 10 1 2021 01 26 Assessment of togolese rivers sands potential as filter sand for drinking water plants 20 30 EN Bhagat Amit 1 Department of Electronics and Computer Engineering, Institute of Engineering, Pulchowk Campus, Tribhuvan University, Nepal Adhikari Nanda Bikram 2 Department of Electronics and Computer Engineering, Institute of Engineering, Pulchowk Campus, Tribhuvan University, Nepal Muthumala C.K. 1 Research Division, State Timber Corporation, Sri Lanka Silva S. De 2 Dept. of Civil and Environmental Engineering, Faculty of Engineering, University of Ruhuna, Hapugala, Galle, Sri Lanka Alwis P.L.A.G. 3 Dept. of Agric. Engineering, Faculty of Agriculture, University of Ruhuna, Mapalana, Kamburupitiya, Sri Lanka Arunakumara K.K.I.U. 4 Dept. of Crop Science, Faculty of Agriculture, University of Ruhuna, Mapalana, Kamburupitiya, Sri Lanka Edoh AGBO Komitse 1 Laboratory of Research in Engineering Sciences, Engineers High National School, University of Lome, 01 BP 1515, Lome, Togo Dany AYITE Yawovi M.X. 2 Laboratory of Research in Engineering Sciences, Engineers High National School, University of Lome, 01 BP 1515, Lome, Togo Irina PACHOUKOVA 3 Laboratory of Research in Engineering Sciences, Engineers High National School, University of Lome, 01 BP 1515, Lome, Togo > Research Paper 2020 9 7 2021 01 26 In this work, the physical properties of river sands, commonly used in construction in Togo, were studied in order to assess their potential as filter sand for drinking water plants. Samples from 17 sites throughout the five Togolese administrative regions are subjected to the tests of sieve analysis, density, porosity, mass loss at acid and friability. Results analysis reveals that sands absolute density, bulk density and porosity are generally suitable to the standard specifications. 88% of the samples show good acid solubility; 71% have very good friability and 29% have good or poor friability. The size distribution properties of these samples, evaluated by the effective size (D10) and the uniformity coefficient (Cu), do not allow them to be used, in their natural state, as rapid filtration sand without tailoring to the desired size. For an effective size of 1 mm and a uniformity coefficient of 1,5 for example, the usable proportions of theses natural sands vary from 6% to 28%. For the same uniformity coefficient and an effective size of 0,6 mm, the usable proportions are more important and vary from 10% to 56%. Copyright@ International Science Community Association