2. Materials and methods
This study was carried out in Nairobi River Basin after the joining of Gitathuru, Ngong and Nairobi River tributaries (Fig. 1). Water samples from Nairobi were dosed with banana pith followed by rapid mix, flocculation and sedimentation. Contaminant removal efficiency computed was computed from reduction in turbidity.
Tests were carried out to identify functional groups in banana pith that are involved in pollutant removal.