Parametric Response Evaluation for Xanthosoma spp. Induced Coag-Flocculation of Brewery Effluent

Abstract

This paper presents the kinetic and functional parametric behavior of cocoyam coagulant (CYC) in respect of pH and time variation in brewery effluent at room temperature. The study employed standard nephelometric jar test while CYC production was based on method reported by Ndabigengesere. Coag-flocculation parameter such as order of reaction α , rate constant K , coagulation period, τ 1/2 etc . were determined. Maximum parameter values are recorded at K of 6 × 10 -1 L/mg·min; dosage of 200 mg/L, pH 8 and τ 1/2 of 0.00146 min while the minimum values are recorded at 3 × 10 -7 L/mg, dosage of 100 mg/L, pH 10 and τ 1/2 of 20.4 min. The maximum coag - floc culation efficiency E (%) obtained was 92.28, thus establishing CYC as a potential effective coag-flocculaant.