Structure-biodegradability correlations among xenobiotic industrial amines

摘要: Using acclimated sewage sludge enrichment cultures, 60 amines with potential uses in industrial processes were evaluated for their biodegradability. Biodegradation was measured as cell protein yield 0.05% amine serving the sole source of carbon, nitrogen and energy a mineral solution. Inhibitory properties amines, by ability to decrease on glucose medium, unrelated Under specified test conditions, all that contained tertiary carbon atoms recalcitrant. Ring N-substituted heterocyclics readily degraded, but ring C-substituted piperidines, exception pipecolinic acid, not. When lacked other functional groups, amino groups hindered degradation. Amines alkyldiamine moieties shorter than propyl did not serve growth substrates. Predictive generalizations this type about biodegradability an aid selecting environmentally safe compounds processes.