Folawewo Abayomi DavidMadu Alexander NnamdiAdebanjo M. G.2025-06-202025-06-202017Folawewo, A. D., Madu, A. N. and Adebanjo, M. G. (2017). Surface Adsorption of some Heavy Metal Ions in Waste and Underground Waters in Agbara Industrial Estate using Sodium Metasilicate. International Journal of Scientific Research in Chemistry. 2(1); 22-29.2456-8457https://repository.crawforduniversity.edu.ng/handle/123456789/298The surface adsorption of some heavy metals ions in waste and underground waters in Agbara industrial estate using sodium silicate has been investigated and results show that the percentage of metal ions adsorbed by the sodium metasilicate from prepared salts were least in iron Fe 0.0382 % (38.20 ppm), followed by copper Cu 0.0583 % (58.20 ppm). This was closely followed by zinc Zn 0.0590 % (57.70 ppm), nickel Ni 0.0663 % (59.91 ppm) and finally cadmium Cd 0.0698 % (68.765 ppm). Results of the adsorbed concentration and adsorption coefficient of the metasilicate on the watse and underground water samples showed tha zinc ranged from 0.354 ppm amounting to adsorption coefficient of 0.334 to 0.550 ppm amounting to an adsorption coefficient of 0.316, copper ranged from 0.420 ppm equivalent to a coefficient of 0.241 ppm to 0.505 ppm equivalent to a coefficient of 0.246. The values for cadmium ranged from 0.326 ppm to 0.446 ppm equivalent to adsorption coefficient of 0.337 and 0.357 respectively. Nickel had values ranging from 0.248 ppm to 0.380 ppm equivalent to adsorption coefficient of 0.242 and 0.393 respectively while iron had the highest values ranging from 0.664 ppm to 0.878 ppm equivalent of an adsorption coefficient of 0.270 and 0.283 respectively.enArticle