Fig. 3.

Hydrocarbon degradation characteristics and degradation efficiency of WEO and WTO by Ochrobactrum sp. C1 with 2 % (v/v) initial concentration of carbon source at pH 7.0, temperature 37 °C and 7 days incubation period. a Degradation percentage of different hydrocarbons; b effect of initial waste oil concentrations on percent degradation of WEO and WTO (at constant temperature, pH and incubation period); c effect of incubation period on percent degradation of WEO and WTO (at constant pH, temperature and waste oil concentration); d effect of initial medium pH on percent degradation of WEO and WTO (at constant temperature, incubation period and waste oil concentration); e effect of incubation temperature on percent degradation of WEO and WTO (at constant pH, incubation period and waste oil concentration); Error bars, mean ± SD of three replicates