Effect of cyanide on phenolics and aromatic hydrocarbons biodegradation under anaerobic and anoxic conditions

Enhanced pyridine biodegradation under anoxic condition: The key role of nitrate as the electron acceptor

“…Unfortunately, under anaerobic conditions, pyridine biodegradation is relatively slow and thus less attractive for full-scale practical application [17]. However, many organic compounds, which are nondegradable under aerobic conditions or less degradable under anaerobic condition, can be effectively utilized by denitrifying bacteria as carbon sources under anoxic condition [18]. Li et al [17] investigated the anoxic biodegradation of pyridine, indole, quinoline, isoquinoline and 2-methyl quinoline, demonstrating that anoxic degradation of these refractory NHCs was feasible.…”

The biodegradation of petroleum hydrocarbons in an upflow sludge-blanket/fixed-film hybrid bioreactor under nitrate-reducing conditions: Performance evaluation and microbial identification

“…A significant reduction in naphthalene biodegradation by microbial-pure cultures under nitrate-reducing conditions was also reported in the absence of nitrate [20]. Sharma and Philip [33] observed that the aromatic hydrocarbons were faster biodegraded in anoxic conditions than in anaerobic conditions.…”

Simultaneous bioremediation of Cr(VI) and phenol from single and binary solution using Bacillus sp.: Multicomponent kinetic modeling

“…If the Cr(VI) and phenol was considered as an inhibitory compound for a single substrate solution, then the Haldane inhibitory kinetic model can be used [5,38,39].…”