Biodegradation of Naphthalene using Bacillus Fusiformis Combined with a Fenton-like Oxidation in Aqueous Solution

In this paper,to enhance the degradation of naphthalene in aqueous solution,the technology of combined biodegradation and Fenton-like oxidation was used. When the initial of naphthalene concentration is 200 mg·L- 1,within 96 h the elimination rate of COD is only 59. 4% with the single technology of biodegradation. However after the 40 h of degradation by bacillus fusiformis,the technology of Fenton-like was adopted to improve the degradation rate. And the optimal experiment conditions were as follows: the temperature was 35 ℃,pH was 3. 0,the dosage of H2O2was 10 mmol·L- 1,the addition of nZVI was 1. 0 g·L- 1. Under these conditions,the removal of COD reached up to 86. 7%. Finally,the removal of COD was 91. 6% by the combined technology.