Effect of Carbon Depth in Diminution of Physico-Chemical Pollution Parameters in Cassava Processing Wastewater Treated by Aeration-Peroxide Oxidation Method

Abstract

This study investigated the effect (attenuation of physico-chemical pollution characteristics) of carbon depth in vertical flow adsorption-filter system of the peroxide oxidation-aeration treatment process for cassava wastewater treatment. Results revealed that although the combined peroxide oxidation, aeration and adsorption-filter treatment process was successful in the reducing pollution characteristics of wastewater from cassava processing, the adsorption-filter part of the treatment process with carbon depths 0, 5, 10 and 15 cm carbon depths were observed to have been selective in removal of physico-chemical pollution characteristics. Parameters such as colour, SO₄^2-, NO^3-, Cl^-, Ca²⁺, Zn²⁺, TDS and TSS were observed to have exhibited increased decontamination efficiency as the depth of carbon increased in the treatment process while Fe²⁺ and CN ions exhibited delayed adsorption. Depth of carbon filter was however observed to have had no effect on Ni²⁺ and Phenol content removal.