Title Analysis of inhibition of cassava wastewater degradation by cyanide
Journal International journal of Engineering And Applied Science
Publisher Faculty of Engineering, Nnamdi Azikiwe University, Awka Nigeria.
Issue 1
ISSN 1119-8109
Pages 80-87
Subject Civil Engineering
Date of Publication 2011

AUTHOR(S) I.M. Jideofor, J.C. Agunwamba


This research aimed at analyzing the inhibition of cassava wastewater degradation by cyanide. The investigation was carried out in the sanitary engineering laboratory using six different buckets containing samples of cassava wastewater. The present of cyanide content inhibits the degradation of cassava wastewater drastically. Sodium hydroxide was used as an oxidizer to reduce the cyanide content in the waste. Monod kinetic constants and the inhibition constant KI were determined using the Line Weaver Burk equation and statistical regression analysis. The results from the analytical experiments show the different forms of inhibition involved at the different grams of the sodium hydroxide added and its inhibition constant. The results obtained for the inhibition constant were given as 591.954mg/l, 398.980mg/l, 358.554mg/l, and 259.254mg/l respectively for the competitive inhibition, non-competitive and mixed inhibition (competitive non-competitive inhibition). The results from this research will be useful in the design of treatment plants.

Keywords: Cyanide; cassava wastewater; fermentation; inhibition; degradation

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