Effect of xanthosoma biomass in vegetable oil industry effluent by coag-flocculation process has been undertaken at room temperature. The coag-flocculation activity and kinetic parameters of xanthosoma biomass in vegetable oil industry effluent were determined at varying; dosages, settling time and pH. The coag-flocculation behaviour of xanthosoma biomass was evaluated using standard Jar test method. The maximum kinetic parameters determined were recorded at K of 3x10-5L/mg, pH of 6, t1∕2=33.33 min while the minimum values are recorded at K of 1 x10-5, pH of 10, t1∕2 = 80min. Regression analysis was used to ascertain the accuracy of the fit to the postulated kinetic model. However, it was concluded that the second order kinetic model described the reaction most adequately with highest regression coefficient (R2) of 0.9869, pH of 6 at 2g dosage. The maximum turbidity removal efficiency (E) was recorded at 83 for dosage, time and pH indicating that xanthosoma biomass is a potential coagulant for effective wastewater treatment.