Authors : J.O. Okafor
Abstract: Effluent and soil samples were collected from 5 different garri processing industries in Bida. Soil samples were obtained 5 m away from each discharge point. Result obtained from Efumadami discharge point showed that pH, BOD5, COD, total solid has the highest values of 4.0, 616, 400 and 700 ppm, respectively while those from Efumayaki has the lowest values of pH, BOD5, COD, total solid with 4.3, 513, 120 and 420 ppm, respectively. It was equally of interest to observe that most of the ions tested for in the soil samples increased as the depth of collection increased. The soil samples were observed to be seriously polluted by cyanide ion. A two-way ANOVA showed that as the depth of collection of soil samples increased, cyanide concentration also increased.
J.O. Okafor , 2008. Impact of Effluents from Garri Processing Industries on the Environment in Bida, Niger State of Nigeria. Journal of Engineering and Applied Sciences, 3: 487-490.