naa a22 4500 510752446 CHVBK 20180411083109.0 cr unu---uuuuu 180411e20130201xx s 000 0 eng 10.1007/s11270-012-1426-8 doi (NATIONALLICENCE)springer-10.1007/s11270-012-1426-8 Biodegradation and Kinetics of Phenanthrene and Pyrene in the Presence of Nonionic Surfactants by Arthrobacter Strain Sphe3 [Elektronische Daten] [Mahendra Aryal, Maria Liakopoulou-Kyriakides] Surfactant-enhanced solubilization and subsequent biodegradation of phenanthrene and pyrene from aqueous solutions by Arthrobacter strain Sphe3 was investigated. The results show that growth of Arthrobacter strain Sphe3 was increased upon increase in concentration of Tween 20 and Tween 80. Inhibition of bacterial growth was observed with increasing Triton X-100 concentrations, whereas sodium dodecyl sulfate (SDS) totally inhibited this bacterial growth. Phenanthrene and pyrene solubilization was enhanced in the presence of surfactants and found to be linearly proportional to their concentrations, above the critical micelle concentration (CMC). In addition, Tween 20 and Tween 80 enhanced the biodegradation of phenanthrene and pyrene. The high correlation coefficient (R 2) values obtained at all the concentrations studied, suggest that biodegradation kinetics of both phenanthrene and pyrene in the presence of Tween 20 and Tween 80 follow first-order kinetic equation model. Experimental results suggest that Tween 20 and Tween 80 may have great potential for applications in bioremediation of these polycyclic aromatic hydrocarbon (PAH) compounds using Arthrobacter strain Sphe3. Springer Science+Business Media Dordrecht, 2013 Polycyclic aromatic hydrocarbons (PAHs) nationallicence Surfactants nationallicence Solubilization nationallicence Arthrobacter strain Sphe3 nationallicence Biodegradation nationallicence Kinetics nationallicence Aryal Mahendra Faculty of Chemical Engineering, Department of Chemistry, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece aut Liakopoulou-Kyriakides Maria Faculty of Chemical Engineering, Department of Chemistry, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece aut Water, Air, & Soil Pollution Springer Netherlands 224/2(2013-02-01), 1-10 0049-6979 224:2<1 2013 224 11270 https://doi.org/10.1007/s11270-012-1426-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11270-012-1426-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Aryal Mahendra Faculty of Chemical Engineering, Department of Chemistry, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece aut NATIONALLICENCE 700 1- Liakopoulou-Kyriakides Maria Faculty of Chemical Engineering, Department of Chemistry, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece aut NATIONALLICENCE 773 0- Water, Air, & Soil Pollution Springer Netherlands 224/2(2013-02-01), 1-10 0049-6979 224:2<1 2013 224 11270 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer