%0 Journal Article
%T Effect of surfactants on biodegradation of benzo[a]pyrene by Bacillus pumilus strain Bap9<br>表面活性剂对Bacillus pumilus strain Bap9 降解苯并[a]芘的影响
%A Zhu Tingting
%A Ni Jinren
%A <br>朱婷婷
%A 倪晋仁
%J 环境工程学报
%D 2012
%I 
%X The impacts of two nonionic surfactants (TX-100 and TW-80) on the solubility of benzoa]pyrene(BaP) and biomass production of Bacillus pumilus strain Bap9 were studied. Results show that TX-100 and TW-80 were not toxic to the BaP-degrading strain Bap9, and both of them could greatly increase the solubility of BaP when their concentration were above the critical micelle concentration (CMC). TX-100 is more effective than TW-80 in increasing solubility of BaP and proliferation of strain Bap9. The effect of degradation was best when the concentration of TX-100 reached 1000 mg/L, which increased 20.8% of the degradation rate. During the biodegradation of BaP, TX-100 could be utilized by the strain Bap9 as carbon source and would not produce any secondary pollution. As a result, TX-100 has considerable potential for the bioremediation of BaP in polluted soils and water.
%K benzo[a]pyrene (BaP)
%K nonionic surfactant
%K Bacillus pumilu strain Bap9
%K biodegradation<br>苯并[a]芘
%K 非离子表面活性剂
%K Bacillus
%K pumilus
%K strain
%K Bap9
%K 生物降解
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=92E6F4267FD4CBCB51B1E49E014D8054&jid=3567BD61129AA59043F5DE01F8815DB5&aid=66FD72374B2E351F6E06B5BA8E138C35&yid=99E9153A83D4CB11&vid=B31275AF3241DB2D&iid=9CF7A0430CBB2DFD&sid=2FEF1FAF51FFF9F7&eid=50E626BD57FC091D&journal_id=1673-9108&journal_name=环境工程学报&referenced_num=0&reference_num=13