Effect of Rhamnolipid Biosurfactant on Solubilization and Biodegradation of Polycyclic Aromatic Hydrocarbons

被引：5

作者：

Zhu, Shengfeng ^{[1
,2
]}

Liang, Shengkang ^{[3
]}

You, Xueyi ^{[1
]}

机构：

[1] Tianjin Univ, Sch Environm Sci & Technol, Tianjin 300072, Peoples R China

[2] China Natl Offshore Oil Corp, Beijing 100010, Peoples R China

[3] Ocean Univ China, Coll Chem & Chem Engn, Qingdao 266100, Peoples R China

来源：

2013 THIRD INTERNATIONAL CONFERENCE ON INTELLIGENT SYSTEM DESIGN AND ENGINEERING APPLICATIONS (ISDEA) | 2013年

关键词：

Polycyclic aromatic hydrocarbons; biosurfactant; solubilization; biodegradation; POLYCHLORINATED-BIPHENYLS; NONIONIC SURFACTANTS; PHENANTHRENE; FIELD; SOIL; REMEDIATION; DEGRADATION; PHASE;

D O I：

10.1109/ISDEA.2012.156

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

The effectiveness of rhamnolipid biosurfactant on solubilization of polycyclic aromatic hydrocarbons (PAHs) in artifical seawater and biodegradation of phenanthrene by a marine bacterium Sphingobacterium sp. strain QPH- 3 were investigated. Rhamnolipid significantly enhanced the aqueous solubility of PAHs. The values of molar solubilization ratio are 4.9 x10(-1,) 9.4x10(-2,) ana 1.4x10(-2) The results of biodegradation experiments showed that the extents of phenanthrene biodegradation were significantly enhanced by rhamnolipid at the optimal concentrations. When the biodegradation systems amended with rhamnolipid dosages above 10mmol/ L, the surfactant compete with PAH as substrates and therefore decrease the biodegradation rate of the phenanthrene.

引用

页码：651 / 654

页数：4

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