Effect of glycolipid biosurfactanton solubilizationof polycyclic aromatic hydrocarbonsin wastewater

	Effect of glycolipid biosurfactanton solubilizationof polycyclic aromatic hydrocarbonsin wastewater
	Bao, Mutai 1; Zhao, Dongwei 1; Yang, Baijuan 2; Zhou, Qin 3; Sun, Peiyan 3
	2013
会议日期	6 4, 2013 - 6 6, 2013
会议地点	Halifax, NS, Canada
页码	62-74
英文摘要	The structure of a glycolipid biosurfactant produced by Bacillus Lz-2 was analysed. The solubilization of polycyclic aromatic hydrocarbons (PAHs) by the glycolipid biosurfactant was investigated, which were mainly discussed biosurfactant concentrations, pH, salinity and temperature on PAHs solubilization capacity. The results showed that the solubilities of naphthalene, phenanthrene and pyrene were increased linearly with glycolipid biosurfactant dose at the surfactant concentration above the biosurfactant CMC. The molar solubilization ratio (MSR) values were decreased with increasing solute molecule, and following a decreasing order of naphthalene > phenanthrene > pyrene. But the solubility percentage was ever-increasingand followed another order of pyrene > phenanthrene > naphthalene. The solubility of PAHs inglycolipid biosurfactant solution was increased with pH and salinity, and reached the maximum value under the conditions of pH 11, which the solubility of naphthalene was 4.47mg?L-1, phenanthrene was 2.43 mg?L-1, and pyrene was 1.6 mg?L-1.When the concentration of salinity was 8g·L-1, the solubility of naphthalene, phenanthrene and pyrene was 2.27mg?L-1, 1.57mg?L-1and 0.98 mg?L-1, respectively.The solubility of phenanthrene and pyrene was increased with the temperature, but the solubility of naphthalene was increased firstly and then decreased, it reached maximum at 30 ° C.
会议录	Proceedings of the 36th AMOP Technical Seminar on Environmental Contamination and Response
会议录出版者	Environment Canada
语种	英语
内容类型	会议论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/7070]
专题	自然资源部第一海洋研究所
作者单位	1.Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, Shandong Province, China; 2.Research Center for Marine Ecology, First Institute of Oceanography, State Oceanic Administration, Qingdao, Shandong Province, China; 3.Key Laboratory of Marine Spill Oil Identification and Damage Assessment Technology, North China Sea Environmental Monitoring Center of State Oceanic Administration, Qingdao, Shandong Province, China
推荐引用方式 GB/T 7714	Bao, Mutai,Zhao, Dongwei,Yang, Baijuan,et al. Effect of glycolipid biosurfactanton solubilizationof polycyclic aromatic hydrocarbonsin wastewater[C]. 见:. Halifax, NS, Canada. 6 4, 2013 - 6 6, 2013.