Effect of Glucose Accelerating Degradation of Aqueous BDE-15 by Bacillus

To explore process of BDE-15 biodegradation in water body and its influencing factors, an indoor experiment was carried out using Bacillus sp. to biodegrade BDE-15 in water to study effects of extragenous carbon and initial BDE-15 concentration on the bio-degradation capacity of the bacteria. Results show that Bacillus could not utilize BDE-15 as the sole carbon source for growth. If glucose was added, Bacillus could grow rapidly and improved its ability to degradate BDE-15 in water and in 4 days, it could degrade 28% of the BDE-15 in the solution and even 55% when an additional dose of glucose was added. The high initial BDE-15 concentration (50 mg•L^-1) could inhibit the growth of Bacillus and also its ability to biodegradate BDE-15.