Ajayi A. A. & Ukonu C. U.
Numerous dyes contain a heterocyclic structure and are not highly biodegradable. This indicates that they do not biodegrade as effectively as they ought to in commercial sewage treatment systems. This paper examines the role of humic acid and the degradation process of Malachite Green Dye (MG) in the vast industrial world, which has contaminated natural water sources and posed a risk to humans and microbes. A remedy to this problem has been identified, which is an oxidation technique for removing MG from water. The findings demonstrated that, at Peroxymonosulfate (PMS) concentration more than 1.0 mM, malachite green at 50 mg/L could be successfully degraded (> 90 %). Humic acid has a complex role to play in the degradation of PMS, as it interacts with both MG and PMS to create sulfate radicals, while Clinteracts with PMS and sulfate radicals to activate them. Key words: Malachite Green, Peroxymonosulfate, Humic acid, UV-VIS Spectrophotometer 0150