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has been cited by the following article:

• TITLE: Effect of Lauroyl Glutamine on Biodegradation of Lubricating Oil and Simulation of Biodegradation Kinetics

  AUTHORS: Boshui Chen, Jiang Wu, Jianhua Fang, Weijiu Huang, Jiu Wang

  KEYWORDS: Lauroyl Glutamine, Lubricating Oil, Biodegradation, Kinetics

  JOURNAL NAME: Engineering, Vol.2 No.11, November 26, 2010

  ABSTRACT: Small amount of lauroyl glutamine was incorporated into HVI 350 mineral lubricating oil and the biodegradabilities of neat oil and the formulated oil in soils were evaluated. Thereafter, the biodegradation rate equations for the two lubricating oils were simulated based on the exponential model. The results indicated that lauroyl glutamine effectively promoted biodegradation of HVI 350 mineral lubricating oil. Under given test conditions, the exponential model well fitted the biodegradation of lubricating oils in soils. The biodegradation rate equation for HVI 350 mineral lubricating oil can be described as ln(St/S0) = –0.0155t, while that for the oil formulated with lauroyl glutamine as ln(St/S0) = –0.0235t. The biodegradation half-lives of neat oil and the formulated oils were 44.72 days and 29.50 days, respectively.