Evaluation of the biodegradation of different types of lubricant oils in liquid medium

Brazilian Archives of Biology and Technology

Paulo Renato Matos Lopes¹  Ederio Dino Bidoia¹ 

[1],Universidade Estadual Paulista Júlio de Mesquita Filho Instituto de Biociências Instituto de BiociênciasRio Claro SP ,Brasil

关键词: biodegradation;    lubricant oil;    respirometry;    liquid medium;   

DOI  :  10.1590/S1516-89132009000500028

来源: SciELO

【 摘 要 】

The aim of this work was to study the biodegradation of different types of automotive lubricant oils adapted to the aqueous medium using a base inoculum and an aqueous inoculum. Four treatments were carried out in two consecutive and similar experiments: T1 (control); T2 (half-synthetic oil); T3 (mineral oil); T4 (used oil). The results showed the following decreasing order of CO2 production in the Bartha and Pramer respirometers: T4 > T2 > T3 > T1. Thus, the used lubricant oil showed with highest biodegradability, followed by the half-synthetic one and the mineral oil. It was also observed that the mineral lubricant presented a longer period of adaptation compared to the half-synthetic one.

【 授权许可】

CC BY-NC   
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