Radiolytic degradation of octachlorodibenzo-p-dioxin and octachlorodibenzofuran in organic solvents and treatment of dioxin-containing liquid wastes

摘要

Degradations of octachlorodibenzo-p-dioxin (OCDD) and octachlorodibenzofuran (OCDF) were studied by ~(60)Co gamma-ray in organic solvents: ethanol,n-nonane,and toluene.Both OCDD and OCDF were degraded more efficiently in ethanol than in n-nonane or toluene.The degradation is mainly attributed to electrons and in part to solvent radicals.The addition of ethanol to dioxin-containing liquid wastes enhanced effectively the degradation of dioxins;the liquid wastes did not exhibit the dioxin toxicity at a dose of 100 kGy.