Author(s)

Bernard Ibezimako Okolo, Patrick Chukwudi Nnaji, Matthew Chukwudi Menkiti, Victor Ifeanyi Ugonabo, Okechukwu Dominic Onukwuli

Chemical Engineering Department, Michael Okpara University of Agriculture, Umudike, Nigeria.
Chemical Engineering Department, Nnamdi Azikiwe University, Awka, Nigeria.

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-flocculation efficiency E (%) obtained was 92.28, thus establishing CYC as a potential effective coag-flocculaant.

Cocoyam; Brewery Effluent; Coag-Flocculation; Xanthosoma spp.; Perikinetic

B. Ibezimako Okolo, P. Chukwudi Nnaji, M. Chukwudi Menkiti, V. Ifeanyi Ugonabo and O. Dominic Onukwuli, "Parametric Response Evaluation for Xanthosoma spp. Induced Coag-Flocculation of Brewery Effluent," Green and Sustainable Chemistry, Vol. 4 No. 1, 2014, pp. 7-14. doi: 10.4236/gsc.2014.41002.