Sentence examples for petroleum concentration from inspiring English sources

Results of laboratory studies showed mean separation efficiencies of the order of 80% when used as a conventional jet cell (CJC) with feed emulsions (droplets size of about 20 μm) ranged between 100 and 400 mg/L petroleum concentration.

In contrast to the earlier vegetative growth, TC of roots significantly increased with increasing petroleum concentration and TN of rhizomes and roots was positively correlated with petroleum concentration.

Furthermore, total carbon concentration (TC) of roots significantly decreased with increasing petroleum concentration, and total nitrogen concentration (TN) of leaves was positively correlated with petroleum concentration.

DIN was significantly positively related with petroleum concentration at late vegetative growth and reproductive stages, while DON was positively correlated with petroleum concentration at the early stage of vegetative growth (Figure 1B, 1C, and Table 1).

Overall, plant growth stage had a greater influence on soil enzyme activities than petroleum concentration (Table 2).

Plant size, biomass, and chlorophyll content (which represents potential photosynthetic capacity) were negatively related to petroleum concentration.

To control for variations in petroleum concentrations at different harvesting times, the effects of plant growth stage on soil nutrients and the numbers of target genes were tested by analysis of covariance (ANCOVA).

This study also created statistical models to predict total recoverable petroleum hydrocarbons concentration in soils by utilizing the absorption features found in the mid-infrared region spectra.

The maximum total petroleum hydrocarbon concentration after 50 years of simulation is approximately 11.5 mg/L (at monitoring bore P-18).

For the first 5 days of sparging, hydrocarbon concentrations in the sparged air were in equilibrium with the NAPL in the aquifer leading to total petroleum hydrocarbon concentrations in the combined system being three to four times greater than for soil vapour extraction alone.

Based on the time series simulation, the total petroleum hydrocarbon concentrations increased and the plumes continued to expand.