Author(s)

M.C. Menkiti, O.D. Onukwuli

Department of Chemical Engineering, Nnamdi Azikiwe University Awka, Nigeria..

This work investigates the influence of pH variation on coag-flocculation kinetics and performance of Chitin Derived Coag-flocculant (CDC) in removal of Suspended and Dissolved Particles (SDP) from Coal washery effluent (CWE) medium. Key parameters such as rate constant K_m, half life t1/2,, and pH etc. were investigated. The best coag-flocculation performance is recorded at K_m, of 0.007 l/mg.min, t1/2, of 0.0362min, pH of 8, dosage of 100mg/l and efficiency E(%) of 99.933. Minimum efficiency (%) > 94.00 was achieved at 30 minutes of coagflocculation, establishing CDC as an effective water treatment agent at the conditions of the experiment.

Coal effluent, coag-flocculation, coagulation, chitin, chitosan

M. Menkiti and O. Onukwuli, "Impact of pH Variation on Coag-flocculation Behaviour of Chitin Derived Coag-flocculant in Coal Washery Effluent Medium," Journal of Minerals and Materials Characterization and Engineering, Vol. 10 No. 15, 2011, pp. 1391-1407. doi: 10.4236/jmmce.2011.1015109.